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1 | 1 | # encoding: utf-8 |
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2 | 2 | """ |
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3 | 3 | An object for managing IPython profile directories. |
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4 | 4 | |
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5 | 5 | Authors: |
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6 | 6 | |
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7 | 7 | * Brian Granger |
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8 | 8 | * Fernando Perez |
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9 | 9 | * Min RK |
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10 | 10 | |
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11 | 11 | """ |
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12 | 12 | |
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13 | 13 | #----------------------------------------------------------------------------- |
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14 |
# Copyright (C) 20 |
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14 | # Copyright (C) 2011 The IPython Development Team | |
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15 | 15 | # |
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16 | 16 | # Distributed under the terms of the BSD License. The full license is in |
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17 | 17 | # the file COPYING, distributed as part of this software. |
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18 | 18 | #----------------------------------------------------------------------------- |
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19 | 19 | |
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20 | 20 | #----------------------------------------------------------------------------- |
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21 | 21 | # Imports |
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22 | 22 | #----------------------------------------------------------------------------- |
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23 | 23 | |
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24 | 24 | import os |
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25 | 25 | import shutil |
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26 | 26 | import errno |
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27 | 27 | |
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28 | 28 | from IPython.config.configurable import LoggingConfigurable |
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29 | 29 | from IPython.utils.path import get_ipython_package_dir, expand_path |
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30 | 30 | from IPython.utils.traitlets import Unicode, Bool |
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31 | 31 | |
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32 | 32 | #----------------------------------------------------------------------------- |
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33 | 33 | # Classes and functions |
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34 | 34 | #----------------------------------------------------------------------------- |
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35 | 35 | |
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36 | 36 | |
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37 | 37 | #----------------------------------------------------------------------------- |
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38 | 38 | # Module errors |
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39 | 39 | #----------------------------------------------------------------------------- |
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40 | 40 | |
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41 | 41 | class ProfileDirError(Exception): |
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42 | 42 | pass |
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43 | 43 | |
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44 | 44 | |
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45 | 45 | #----------------------------------------------------------------------------- |
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46 | 46 | # Class for managing profile directories |
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47 | 47 | #----------------------------------------------------------------------------- |
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48 | 48 | |
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49 | 49 | class ProfileDir(LoggingConfigurable): |
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50 | 50 | """An object to manage the profile directory and its resources. |
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51 | 51 | |
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52 | 52 | The profile directory is used by all IPython applications, to manage |
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53 | 53 | configuration, logging and security. |
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54 | 54 | |
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55 | 55 | This object knows how to find, create and manage these directories. This |
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56 | 56 | should be used by any code that wants to handle profiles. |
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57 | 57 | """ |
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58 | 58 | |
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59 | 59 | security_dir_name = Unicode('security') |
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60 | 60 | log_dir_name = Unicode('log') |
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61 | 61 | startup_dir_name = Unicode('startup') |
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62 | 62 | pid_dir_name = Unicode('pid') |
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63 | static_dir_name = Unicode('static') | |
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63 | 64 | security_dir = Unicode(u'') |
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64 | 65 | log_dir = Unicode(u'') |
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65 | 66 | startup_dir = Unicode(u'') |
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66 | 67 | pid_dir = Unicode(u'') |
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68 | static_dir = Unicode(u'') | |
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67 | 69 | |
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68 | 70 | location = Unicode(u'', config=True, |
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69 | 71 | help="""Set the profile location directly. This overrides the logic used by the |
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70 | 72 | `profile` option.""", |
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71 | 73 | ) |
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72 | 74 | |
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73 | 75 | _location_isset = Bool(False) # flag for detecting multiply set location |
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74 | 76 | |
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75 | 77 | def _location_changed(self, name, old, new): |
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76 | 78 | if self._location_isset: |
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77 | 79 | raise RuntimeError("Cannot set profile location more than once.") |
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78 | 80 | self._location_isset = True |
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79 | 81 | if not os.path.isdir(new): |
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80 | 82 | os.makedirs(new) |
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81 | 83 | |
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82 | 84 | # ensure config files exist: |
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83 | 85 | self.security_dir = os.path.join(new, self.security_dir_name) |
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84 | 86 | self.log_dir = os.path.join(new, self.log_dir_name) |
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85 | 87 | self.startup_dir = os.path.join(new, self.startup_dir_name) |
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86 | 88 | self.pid_dir = os.path.join(new, self.pid_dir_name) |
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89 | self.static_dir = os.path.join(new, self.static_dir_name) | |
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87 | 90 | self.check_dirs() |
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88 | 91 | |
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89 | 92 | def _log_dir_changed(self, name, old, new): |
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90 | 93 | self.check_log_dir() |
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91 | 94 | |
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92 | 95 | def _mkdir(self, path, mode=None): |
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93 | 96 | """ensure a directory exists at a given path |
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94 | 97 | |
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95 | 98 | This is a version of os.mkdir, with the following differences: |
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96 | 99 | |
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97 | 100 | - returns True if it created the directory, False otherwise |
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98 | 101 | - ignores EEXIST, protecting against race conditions where |
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99 | 102 | the dir may have been created in between the check and |
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100 | 103 | the creation |
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101 | 104 | - sets permissions if requested and the dir already exists |
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102 | 105 | """ |
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103 | 106 | if os.path.exists(path): |
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104 | 107 | if mode and os.stat(path).st_mode != mode: |
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105 | 108 | try: |
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106 | 109 | os.chmod(path, mode) |
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107 | 110 | except OSError: |
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108 | 111 | self.log.warn( |
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109 | 112 | "Could not set permissions on %s", |
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110 | 113 | path |
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111 | 114 | ) |
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112 | 115 | return False |
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113 | 116 | try: |
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114 | 117 | if mode: |
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115 | 118 | os.mkdir(path, mode) |
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116 | 119 | else: |
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117 | 120 | os.mkdir(path) |
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118 | 121 | except OSError as e: |
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119 | 122 | if e.errno == errno.EEXIST: |
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120 | 123 | return False |
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121 | 124 | else: |
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122 | 125 | raise |
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123 | 126 | |
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124 | 127 | return True |
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125 | 128 | |
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126 | 129 | def check_log_dir(self): |
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127 | 130 | self._mkdir(self.log_dir) |
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128 | 131 | |
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129 | 132 | def _startup_dir_changed(self, name, old, new): |
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130 | 133 | self.check_startup_dir() |
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131 | 134 | |
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132 | 135 | def check_startup_dir(self): |
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133 | 136 | self._mkdir(self.startup_dir) |
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134 | 137 | |
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135 | 138 | readme = os.path.join(self.startup_dir, 'README') |
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136 | 139 | src = os.path.join(get_ipython_package_dir(), u'config', u'profile', u'README_STARTUP') |
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137 | 140 | |
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138 | 141 | if not os.path.exists(src): |
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139 | 142 | self.log.warn("Could not copy README_STARTUP to startup dir. Source file %s does not exist.", src) |
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140 | 143 | |
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141 | 144 | if os.path.exists(src) and not os.path.exists(readme): |
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142 | 145 | shutil.copy(src, readme) |
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143 | 146 | |
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144 | 147 | def _security_dir_changed(self, name, old, new): |
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145 | 148 | self.check_security_dir() |
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146 | 149 | |
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147 | 150 | def check_security_dir(self): |
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148 | 151 | self._mkdir(self.security_dir, 0o40700) |
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149 | 152 | |
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150 | 153 | def _pid_dir_changed(self, name, old, new): |
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151 | 154 | self.check_pid_dir() |
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152 | 155 | |
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153 | 156 | def check_pid_dir(self): |
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154 | 157 | self._mkdir(self.pid_dir, 0o40700) |
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155 | 158 | |
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159 | def _static_dir_changed(self, name, old, new): | |
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160 | self.check_startup_dir() | |
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161 | ||
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162 | def check_static_dir(self): | |
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163 | self._mkdir(self.static_dir) | |
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164 | custom = os.path.join(self.static_dir, 'custom') | |
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165 | self._mkdir(custom) | |
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166 | from IPython.html import DEFAULT_STATIC_FILES_PATH | |
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167 | for fname in ('custom.js', 'custom.css'): | |
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168 | src = os.path.join(DEFAULT_STATIC_FILES_PATH, 'custom', fname) | |
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169 | dest = os.path.join(custom, fname) | |
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170 | if not os.path.exists(src): | |
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171 | self.log.warn("Could not copy default file to static dir. Source file %s does not exist.", src) | |
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172 | continue | |
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173 | if not os.path.exists(dest): | |
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174 | shutil.copy(src, dest) | |
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175 | ||
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156 | 176 | def check_dirs(self): |
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157 | 177 | self.check_security_dir() |
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158 | 178 | self.check_log_dir() |
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159 | 179 | self.check_pid_dir() |
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160 | 180 | self.check_startup_dir() |
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181 | self.check_static_dir() | |
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161 | 182 | |
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162 | 183 | def copy_config_file(self, config_file, path=None, overwrite=False): |
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163 | 184 | """Copy a default config file into the active profile directory. |
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164 | 185 | |
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165 | 186 | Default configuration files are kept in :mod:`IPython.config.default`. |
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166 | 187 | This function moves these from that location to the working profile |
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167 | 188 | directory. |
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168 | 189 | """ |
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169 | 190 | dst = os.path.join(self.location, config_file) |
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170 | 191 | if os.path.isfile(dst) and not overwrite: |
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171 | 192 | return False |
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172 | 193 | if path is None: |
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173 | 194 | path = os.path.join(get_ipython_package_dir(), u'config', u'profile', u'default') |
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174 | 195 | src = os.path.join(path, config_file) |
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175 | 196 | shutil.copy(src, dst) |
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176 | 197 | return True |
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177 | 198 | |
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178 | 199 | @classmethod |
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179 | 200 | def create_profile_dir(cls, profile_dir, config=None): |
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180 | 201 | """Create a new profile directory given a full path. |
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181 | 202 | |
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182 | 203 | Parameters |
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183 | 204 | ---------- |
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184 | 205 | profile_dir : str |
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185 | 206 | The full path to the profile directory. If it does exist, it will |
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186 | 207 | be used. If not, it will be created. |
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187 | 208 | """ |
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188 | 209 | return cls(location=profile_dir, config=config) |
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189 | 210 | |
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190 | 211 | @classmethod |
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191 | 212 | def create_profile_dir_by_name(cls, path, name=u'default', config=None): |
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192 | 213 | """Create a profile dir by profile name and path. |
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193 | 214 | |
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194 | 215 | Parameters |
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195 | 216 | ---------- |
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196 | 217 | path : unicode |
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197 | 218 | The path (directory) to put the profile directory in. |
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198 | 219 | name : unicode |
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199 | 220 | The name of the profile. The name of the profile directory will |
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200 | 221 | be "profile_<profile>". |
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201 | 222 | """ |
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202 | 223 | if not os.path.isdir(path): |
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203 | 224 | raise ProfileDirError('Directory not found: %s' % path) |
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204 | 225 | profile_dir = os.path.join(path, u'profile_' + name) |
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205 | 226 | return cls(location=profile_dir, config=config) |
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206 | 227 | |
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207 | 228 | @classmethod |
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208 | 229 | def find_profile_dir_by_name(cls, ipython_dir, name=u'default', config=None): |
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209 | 230 | """Find an existing profile dir by profile name, return its ProfileDir. |
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210 | 231 | |
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211 | 232 | This searches through a sequence of paths for a profile dir. If it |
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212 | 233 | is not found, a :class:`ProfileDirError` exception will be raised. |
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213 | 234 | |
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214 | 235 | The search path algorithm is: |
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215 | 236 | 1. ``os.getcwdu()`` |
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216 | 237 | 2. ``ipython_dir`` |
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217 | 238 | |
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218 | 239 | Parameters |
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219 | 240 | ---------- |
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220 | 241 | ipython_dir : unicode or str |
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221 | 242 | The IPython directory to use. |
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222 | 243 | name : unicode or str |
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223 | 244 | The name of the profile. The name of the profile directory |
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224 | 245 | will be "profile_<profile>". |
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225 | 246 | """ |
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226 | 247 | dirname = u'profile_' + name |
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227 | 248 | paths = [os.getcwdu(), ipython_dir] |
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228 | 249 | for p in paths: |
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229 | 250 | profile_dir = os.path.join(p, dirname) |
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230 | 251 | if os.path.isdir(profile_dir): |
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231 | 252 | return cls(location=profile_dir, config=config) |
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232 | 253 | else: |
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233 | 254 | raise ProfileDirError('Profile directory not found in paths: %s' % dirname) |
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234 | 255 | |
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235 | 256 | @classmethod |
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236 | 257 | def find_profile_dir(cls, profile_dir, config=None): |
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237 | 258 | """Find/create a profile dir and return its ProfileDir. |
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238 | 259 | |
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239 | 260 | This will create the profile directory if it doesn't exist. |
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240 | 261 | |
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241 | 262 | Parameters |
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242 | 263 | ---------- |
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243 | 264 | profile_dir : unicode or str |
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244 | 265 | The path of the profile directory. This is expanded using |
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245 | 266 | :func:`IPython.utils.genutils.expand_path`. |
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246 | 267 | """ |
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247 | 268 | profile_dir = expand_path(profile_dir) |
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248 | 269 | if not os.path.isdir(profile_dir): |
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249 | 270 | raise ProfileDirError('Profile directory not found: %s' % profile_dir) |
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250 | 271 | return cls(location=profile_dir, config=config) |
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251 | 272 | |
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252 | 273 |
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