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@@ -1,441 +1,441 b'' | |||
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1 | 1 | # linuxserver.py - inotify status server for linux |
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2 | 2 | # |
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3 | 3 | # Copyright 2006, 2007, 2008 Bryan O'Sullivan <bos@serpentine.com> |
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4 | 4 | # Copyright 2007, 2008 Brendan Cully <brendan@kublai.com> |
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5 | 5 | # |
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6 | 6 | # This software may be used and distributed according to the terms of the |
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7 | 7 | # GNU General Public License version 2 or any later version. |
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8 | 8 | |
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9 | 9 | from mercurial.i18n import _ |
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10 | 10 | from mercurial import osutil, util |
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11 | 11 | import server |
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12 | 12 | import errno, os, select, stat, sys, time |
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13 | 13 | |
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14 | 14 | try: |
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15 | 15 | import linux as inotify |
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16 | 16 | from linux import watcher |
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17 | 17 | except ImportError: |
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18 | 18 | raise |
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19 | 19 | |
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20 | 20 | def walkrepodirs(dirstate, absroot): |
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21 | 21 | '''Iterate over all subdirectories of this repo. |
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22 | 22 | Exclude the .hg directory, any nested repos, and ignored dirs.''' |
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23 | 23 | def walkit(dirname, top): |
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24 | 24 | fullpath = server.join(absroot, dirname) |
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25 | 25 | try: |
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26 | 26 | for name, kind in osutil.listdir(fullpath): |
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27 | 27 | if kind == stat.S_IFDIR: |
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28 | 28 | if name == '.hg': |
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29 | 29 | if not top: |
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30 | 30 | return |
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31 | 31 | else: |
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32 | 32 | d = server.join(dirname, name) |
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33 | 33 | if dirstate._ignore(d): |
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34 | 34 | continue |
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35 | 35 | for subdir in walkit(d, False): |
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36 | 36 | yield subdir |
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37 | 37 | except OSError, err: |
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38 | 38 | if err.errno not in server.walk_ignored_errors: |
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39 | 39 | raise |
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40 | 40 | yield fullpath |
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41 | 41 | |
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42 | 42 | return walkit('', True) |
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43 | 43 | |
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44 | 44 | def _explain_watch_limit(ui, dirstate, rootabs): |
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45 | 45 | path = '/proc/sys/fs/inotify/max_user_watches' |
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46 | 46 | try: |
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47 | 47 | limit = int(file(path).read()) |
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48 | 48 | except IOError, err: |
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49 | 49 | if err.errno != errno.ENOENT: |
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50 | 50 | raise |
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51 | 51 | raise util.Abort(_('this system does not seem to ' |
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52 | 52 | 'support inotify')) |
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53 | 53 | ui.warn(_('*** the current per-user limit on the number ' |
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54 | 54 | 'of inotify watches is %s\n') % limit) |
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55 | 55 | ui.warn(_('*** this limit is too low to watch every ' |
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56 | 56 | 'directory in this repository\n')) |
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57 | 57 | ui.warn(_('*** counting directories: ')) |
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58 | 58 | ndirs = len(list(walkrepodirs(dirstate, rootabs))) |
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59 | 59 | ui.warn(_('found %d\n') % ndirs) |
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60 | 60 | newlimit = min(limit, 1024) |
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61 | 61 | while newlimit < ((limit + ndirs) * 1.1): |
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62 | 62 | newlimit *= 2 |
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63 | 63 | ui.warn(_('*** to raise the limit from %d to %d (run as root):\n') % |
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64 | 64 | (limit, newlimit)) |
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65 | 65 | ui.warn(_('*** echo %d > %s\n') % (newlimit, path)) |
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66 | 66 | raise util.Abort(_('cannot watch %s until inotify watch limit is raised') |
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67 | 67 | % rootabs) |
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68 | 68 | |
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69 | 69 | class pollable(object): |
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70 | 70 | """ |
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71 | 71 | Interface to support polling. |
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72 | 72 | The file descriptor returned by fileno() is registered to a polling |
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73 | 73 | object. |
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74 | 74 | Usage: |
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75 | 75 | Every tick, check if an event has happened since the last tick: |
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76 | 76 | * If yes, call handle_events |
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77 | 77 | * If no, call handle_timeout |
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78 | 78 | """ |
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79 | 79 | poll_events = select.POLLIN |
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80 | 80 | instances = {} |
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81 | 81 | poll = select.poll() |
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82 | 82 | |
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83 | 83 | def fileno(self): |
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84 | 84 | raise NotImplementedError |
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85 | 85 | |
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86 | 86 | def handle_events(self, events): |
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87 | 87 | raise NotImplementedError |
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88 | 88 | |
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89 | 89 | def handle_timeout(self): |
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90 | 90 | raise NotImplementedError |
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91 | 91 | |
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92 | 92 | def shutdown(self): |
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93 | 93 | raise NotImplementedError |
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94 | 94 | |
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95 | 95 | def register(self, timeout): |
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96 | 96 | fd = self.fileno() |
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97 | 97 | |
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98 | 98 | pollable.poll.register(fd, pollable.poll_events) |
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99 | 99 | pollable.instances[fd] = self |
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100 | 100 | |
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101 | 101 | self.registered = True |
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102 | 102 | self.timeout = timeout |
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103 | 103 | |
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104 | 104 | def unregister(self): |
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105 | 105 | pollable.poll.unregister(self) |
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106 | 106 | self.registered = False |
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107 | 107 | |
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108 | 108 | @classmethod |
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109 | 109 | def run(cls): |
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110 | 110 | while True: |
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111 | 111 | timeout = None |
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112 | 112 | timeobj = None |
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113 | 113 | for obj in cls.instances.itervalues(): |
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114 | 114 | if obj.timeout is not None and (timeout is None |
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115 | 115 | or obj.timeout < timeout): |
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116 | 116 | timeout, timeobj = obj.timeout, obj |
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117 | 117 | try: |
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118 | 118 | events = cls.poll.poll(timeout) |
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119 | 119 | except select.error, err: |
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120 | 120 | if err[0] == errno.EINTR: |
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121 | 121 | continue |
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122 | 122 | raise |
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123 | 123 | if events: |
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124 | 124 | by_fd = {} |
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125 | 125 | for fd, event in events: |
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126 | 126 | by_fd.setdefault(fd, []).append(event) |
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127 | 127 | |
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128 | 128 | for fd, events in by_fd.iteritems(): |
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129 | 129 | cls.instances[fd].handle_pollevents(events) |
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130 | 130 | |
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131 | 131 | elif timeobj: |
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132 | 132 | timeobj.handle_timeout() |
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133 | 133 | |
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134 | 134 | def eventaction(code): |
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135 | 135 | """ |
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136 | 136 | Decorator to help handle events in repowatcher |
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137 | 137 | """ |
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138 | 138 | def decorator(f): |
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139 | 139 | def wrapper(self, wpath): |
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140 | 140 | if code == 'm' and wpath in self.lastevent and \ |
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141 | 141 | self.lastevent[wpath] in 'cm': |
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142 | 142 | return |
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143 | 143 | self.lastevent[wpath] = code |
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144 | 144 | self.timeout = 250 |
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145 | 145 | |
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146 | 146 | f(self, wpath) |
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147 | 147 | |
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148 | 148 | wrapper.func_name = f.func_name |
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149 | 149 | return wrapper |
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150 | 150 | return decorator |
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151 | 151 | |
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152 | 152 | class repowatcher(server.repowatcher, pollable): |
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153 | 153 | """ |
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154 | 154 | Watches inotify events |
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155 | 155 | """ |
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156 | 156 | mask = ( |
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157 | 157 | inotify.IN_ATTRIB | |
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158 | 158 | inotify.IN_CREATE | |
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159 | 159 | inotify.IN_DELETE | |
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160 | 160 | inotify.IN_DELETE_SELF | |
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161 | 161 | inotify.IN_MODIFY | |
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162 | 162 | inotify.IN_MOVED_FROM | |
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163 | 163 | inotify.IN_MOVED_TO | |
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164 | 164 | inotify.IN_MOVE_SELF | |
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165 | 165 | inotify.IN_ONLYDIR | |
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166 | 166 | inotify.IN_UNMOUNT | |
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167 | 167 | 0) |
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168 | 168 | |
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169 | 169 | def __init__(self, ui, dirstate, root): |
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170 | 170 | server.repowatcher.__init__(self, ui, dirstate, root) |
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171 | 171 | |
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172 | 172 | self.lastevent = {} |
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173 | 173 | self.dirty = False |
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174 | 174 | try: |
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175 | 175 | self.watcher = watcher.watcher() |
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176 | 176 | except OSError, err: |
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177 | 177 | raise util.Abort(_('inotify service not available: %s') % |
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178 | 178 | err.strerror) |
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179 | 179 | self.threshold = watcher.threshold(self.watcher) |
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180 | 180 | self.fileno = self.watcher.fileno |
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181 | 181 | self.register(timeout=None) |
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182 | 182 | |
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183 | 183 | self.handle_timeout() |
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184 | 184 | self.scan() |
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185 | 185 | |
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186 | 186 | def event_time(self): |
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187 | 187 | last = self.last_event |
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188 | 188 | now = time.time() |
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189 | 189 | self.last_event = now |
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190 | 190 | |
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191 | 191 | if last is None: |
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192 | 192 | return 'start' |
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193 | 193 | delta = now - last |
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194 | 194 | if delta < 5: |
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195 | 195 | return '+%.3f' % delta |
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196 | 196 | if delta < 50: |
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197 | 197 | return '+%.2f' % delta |
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198 | 198 | return '+%.1f' % delta |
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199 | 199 | |
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200 | 200 | def add_watch(self, path, mask): |
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201 | 201 | if not path: |
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202 | 202 | return |
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203 | 203 | if self.watcher.path(path) is None: |
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204 | 204 | if self.ui.debugflag: |
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205 | 205 | self.ui.note(_('watching %r\n') % path[self.prefixlen:]) |
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206 | 206 | try: |
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207 | 207 | self.watcher.add(path, mask) |
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208 | 208 | except OSError, err: |
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209 | 209 | if err.errno in (errno.ENOENT, errno.ENOTDIR): |
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210 | 210 | return |
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211 | 211 | if err.errno != errno.ENOSPC: |
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212 | 212 | raise |
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213 | 213 | _explain_watch_limit(self.ui, self.dirstate, self.wprefix) |
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214 | 214 | |
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215 | 215 | def setup(self): |
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216 | 216 | self.ui.note(_('watching directories under %r\n') % self.wprefix) |
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217 | 217 | self.add_watch(self.wprefix + '.hg', inotify.IN_DELETE) |
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218 | 218 | |
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219 | 219 | def scan(self, topdir=''): |
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220 | 220 | ds = self.dirstate._map.copy() |
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221 | 221 | self.add_watch(server.join(self.wprefix, topdir), self.mask) |
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222 | 222 | for root, dirs, files in server.walk(self.dirstate, self.wprefix, |
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223 | 223 | topdir): |
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224 | 224 | for d in dirs: |
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225 | 225 | self.add_watch(server.join(root, d), self.mask) |
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226 | 226 | wroot = root[self.prefixlen:] |
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227 | 227 | for fn in files: |
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228 | 228 | wfn = server.join(wroot, fn) |
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229 | 229 | self.updatefile(wfn, self.getstat(wfn)) |
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230 | 230 | ds.pop(wfn, None) |
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231 | 231 | wtopdir = topdir |
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232 | 232 | if wtopdir and wtopdir[-1] != '/': |
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233 | 233 | wtopdir += '/' |
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234 | 234 | for wfn, state in ds.iteritems(): |
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235 | 235 | if not wfn.startswith(wtopdir): |
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236 | 236 | continue |
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237 | 237 | try: |
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238 | 238 | st = self.stat(wfn) |
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239 | 239 | except OSError: |
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240 | 240 | status = state[0] |
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241 | 241 | self.deletefile(wfn, status) |
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242 | 242 | else: |
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243 | 243 | self.updatefile(wfn, st) |
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244 | 244 | self.check_deleted('!') |
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245 | 245 | self.check_deleted('r') |
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246 | 246 | |
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247 | 247 | @eventaction('c') |
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248 | 248 | def created(self, wpath): |
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249 | 249 | if wpath == '.hgignore': |
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250 | 250 | self.update_hgignore() |
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251 | 251 | try: |
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252 | 252 | st = self.stat(wpath) |
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253 | 253 | if stat.S_ISREG(st[0]) or stat.S_ISLNK(st[0]): |
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254 | 254 | self.updatefile(wpath, st) |
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255 | 255 | except OSError: |
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256 | 256 | pass |
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257 | 257 | |
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258 | 258 | @eventaction('m') |
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259 | 259 | def modified(self, wpath): |
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260 | 260 | if wpath == '.hgignore': |
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261 | 261 | self.update_hgignore() |
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262 | 262 | try: |
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263 | 263 | st = self.stat(wpath) |
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264 | 264 | if stat.S_ISREG(st[0]): |
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265 | 265 | if self.dirstate[wpath] in 'lmn': |
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266 | 266 | self.updatefile(wpath, st) |
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267 | 267 | except OSError: |
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268 | 268 | pass |
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269 | 269 | |
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270 | 270 | @eventaction('d') |
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271 | 271 | def deleted(self, wpath): |
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272 | 272 | if wpath == '.hgignore': |
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273 | 273 | self.update_hgignore() |
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274 | 274 | elif wpath.startswith('.hg/'): |
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275 | 275 | return |
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276 | 276 | |
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277 | 277 | self.deletefile(wpath, self.dirstate[wpath]) |
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278 | 278 | |
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279 | 279 | def process_create(self, wpath, evt): |
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280 | 280 | if self.ui.debugflag: |
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281 | 281 | self.ui.note(_('%s event: created %s\n') % |
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282 | 282 | (self.event_time(), wpath)) |
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283 | 283 | |
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284 | 284 | if evt.mask & inotify.IN_ISDIR: |
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285 | 285 | self.scan(wpath) |
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286 | 286 | else: |
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287 | 287 | self.created(wpath) |
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288 | 288 | |
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289 | 289 | def process_delete(self, wpath, evt): |
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290 | 290 | if self.ui.debugflag: |
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291 | 291 | self.ui.note(_('%s event: deleted %s\n') % |
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292 | 292 | (self.event_time(), wpath)) |
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293 | 293 | |
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294 | 294 | if evt.mask & inotify.IN_ISDIR: |
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295 | 295 | tree = self.tree.dir(wpath) |
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296 | 296 | todelete = [wfn for wfn, ignore in tree.walk('?')] |
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297 | 297 | for fn in todelete: |
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298 | 298 | self.deletefile(fn, '?') |
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299 | 299 | self.scan(wpath) |
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300 | 300 | else: |
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301 | 301 | self.deleted(wpath) |
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302 | 302 | |
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303 | 303 | def process_modify(self, wpath, evt): |
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304 | 304 | if self.ui.debugflag: |
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305 | 305 | self.ui.note(_('%s event: modified %s\n') % |
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306 | 306 | (self.event_time(), wpath)) |
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307 | 307 | |
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308 | 308 | if not (evt.mask & inotify.IN_ISDIR): |
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309 | 309 | self.modified(wpath) |
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310 | 310 | |
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311 | 311 | def process_unmount(self, evt): |
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312 | 312 | self.ui.warn(_('filesystem containing %s was unmounted\n') % |
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313 | 313 | evt.fullpath) |
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314 | 314 | sys.exit(0) |
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315 | 315 | |
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316 | 316 | def handle_pollevents(self, events): |
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317 | 317 | if self.ui.debugflag: |
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318 | 318 | self.ui.note(_('%s readable: %d bytes\n') % |
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319 | 319 | (self.event_time(), self.threshold.readable())) |
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320 | 320 | if not self.threshold(): |
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321 | 321 | if self.registered: |
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322 | 322 | if self.ui.debugflag: |
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323 | 323 | self.ui.note(_('%s below threshold - unhooking\n') % |
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324 | 324 | (self.event_time())) |
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325 | 325 | self.unregister() |
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326 | 326 | self.timeout = 250 |
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327 | 327 | else: |
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328 | 328 | self.read_events() |
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329 | 329 | |
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330 | 330 | def read_events(self, bufsize=None): |
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331 | 331 | events = self.watcher.read(bufsize) |
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332 | 332 | if self.ui.debugflag: |
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333 | 333 | self.ui.note(_('%s reading %d events\n') % |
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334 | 334 | (self.event_time(), len(events))) |
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335 | 335 | for evt in events: |
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336 | 336 | if evt.fullpath == self.wprefix[:-1]: |
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337 | 337 | # events on the root of the repository |
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338 | 338 | # itself, e.g. permission changes or repository move |
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339 | 339 | continue |
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340 | 340 | assert evt.fullpath.startswith(self.wprefix) |
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341 | 341 | wpath = evt.fullpath[self.prefixlen:] |
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342 | 342 | |
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343 | 343 | # paths have been normalized, wpath never ends with a '/' |
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344 | 344 | |
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345 | 345 | if wpath.startswith('.hg/') and evt.mask & inotify.IN_ISDIR: |
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346 | 346 | # ignore subdirectories of .hg/ (merge, patches...) |
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347 | 347 | continue |
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348 | 348 | if wpath == ".hg/wlock": |
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349 | 349 | if evt.mask & inotify.IN_DELETE: |
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350 | 350 | self.dirstate.invalidate() |
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351 | 351 | self.dirty = False |
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352 | 352 | self.scan() |
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353 | 353 | elif evt.mask & inotify.IN_CREATE: |
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354 | 354 | self.dirty = True |
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355 | 355 | else: |
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356 | 356 | if self.dirty: |
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357 | 357 | continue |
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358 | 358 | |
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359 | 359 | if evt.mask & inotify.IN_UNMOUNT: |
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360 | 360 | self.process_unmount(wpath, evt) |
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361 | 361 | elif evt.mask & (inotify.IN_MODIFY | inotify.IN_ATTRIB): |
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362 | 362 | self.process_modify(wpath, evt) |
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363 | 363 | elif evt.mask & (inotify.IN_DELETE | inotify.IN_DELETE_SELF | |
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364 | 364 | inotify.IN_MOVED_FROM): |
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365 | 365 | self.process_delete(wpath, evt) |
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366 | 366 | elif evt.mask & (inotify.IN_CREATE | inotify.IN_MOVED_TO): |
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367 | 367 | self.process_create(wpath, evt) |
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368 | 368 | |
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369 | 369 | self.lastevent.clear() |
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370 | 370 | |
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371 | 371 | def handle_timeout(self): |
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372 | 372 | if not self.registered: |
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373 | 373 | if self.ui.debugflag: |
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374 | 374 | self.ui.note(_('%s hooking back up with %d bytes readable\n') % |
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375 | 375 | (self.event_time(), self.threshold.readable())) |
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376 | 376 | self.read_events(0) |
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377 | 377 | self.register(timeout=None) |
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378 | 378 | |
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379 | 379 | self.timeout = None |
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380 | 380 | |
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381 | 381 | def shutdown(self): |
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382 | 382 | self.watcher.close() |
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383 | 383 | |
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384 | 384 | def debug(self): |
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385 | 385 | """ |
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386 | 386 | Returns a sorted list of relatives paths currently watched, |
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387 | 387 | for debugging purposes. |
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388 | 388 | """ |
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389 | 389 | return sorted(tuple[0][self.prefixlen:] for tuple in self.watcher) |
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390 | 390 | |
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391 | 391 | class socketlistener(server.socketlistener, pollable): |
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392 | 392 | """ |
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393 | 393 | Listens for client queries on unix socket inotify.sock |
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394 | 394 | """ |
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395 | 395 | def __init__(self, ui, root, repowatcher, timeout): |
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396 | 396 | server.socketlistener.__init__(self, ui, root, repowatcher, timeout) |
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397 | 397 | self.register(timeout=timeout) |
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398 | 398 | |
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399 | 399 | def handle_timeout(self): |
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400 | pass | |
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400 | raise server.TimeoutException | |
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401 | 401 | |
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402 | 402 | def handle_pollevents(self, events): |
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403 | 403 | for e in events: |
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404 | 404 | self.accept_connection() |
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405 | 405 | |
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406 | 406 | def shutdown(self): |
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407 | 407 | self.sock.close() |
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408 | 408 | try: |
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409 | 409 | os.unlink(self.sockpath) |
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410 | 410 | if self.realsockpath: |
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411 | 411 | os.unlink(self.realsockpath) |
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412 | 412 | os.rmdir(os.path.dirname(self.realsockpath)) |
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413 | 413 | except OSError, err: |
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414 | 414 | if err.errno != errno.ENOENT: |
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415 | 415 | raise |
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416 | 416 | |
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417 | 417 | def answer_stat_query(self, cs): |
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418 | 418 | if self.repowatcher.timeout: |
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419 | 419 | # We got a query while a rescan is pending. Make sure we |
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420 | 420 | # rescan before responding, or we could give back a wrong |
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421 | 421 | # answer. |
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422 | 422 | self.repowatcher.handle_timeout() |
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423 | 423 | return server.socketlistener.answer_stat_query(self, cs) |
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424 | 424 | |
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425 | 425 | class master(object): |
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426 | 426 | def __init__(self, ui, dirstate, root, timeout=None): |
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427 | 427 | self.ui = ui |
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428 | 428 | self.repowatcher = repowatcher(ui, dirstate, root) |
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429 | 429 | self.socketlistener = socketlistener(ui, root, self.repowatcher, |
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430 | 430 | timeout) |
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431 | 431 | |
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432 | 432 | def shutdown(self): |
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433 | 433 | for obj in pollable.instances.itervalues(): |
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434 | 434 | obj.shutdown() |
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435 | 435 | |
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436 | 436 | def run(self): |
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437 | 437 | self.repowatcher.setup() |
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438 | 438 | self.ui.note(_('finished setup\n')) |
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439 | 439 | if os.getenv('TIME_STARTUP'): |
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440 | 440 | sys.exit(0) |
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441 | 441 | pollable.run() |
@@ -1,479 +1,486 b'' | |||
|
1 | 1 | # server.py - common entry point for inotify status server |
|
2 | 2 | # |
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3 | 3 | # Copyright 2009 Nicolas Dumazet <nicdumz@gmail.com> |
|
4 | 4 | # |
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5 | 5 | # This software may be used and distributed according to the terms of the |
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6 | 6 | # GNU General Public License version 2 or any later version. |
|
7 | 7 | |
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8 | 8 | from mercurial.i18n import _ |
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9 | 9 | from mercurial import cmdutil, osutil, util |
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10 | 10 | import common |
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11 | 11 | |
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12 | 12 | import errno |
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13 | 13 | import os |
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14 | 14 | import socket |
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15 | 15 | import stat |
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16 | 16 | import struct |
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17 | 17 | import sys |
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18 | 18 | import tempfile |
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19 | 19 | |
|
20 | 20 | class AlreadyStartedException(Exception): |
|
21 | 21 | pass |
|
22 | class TimeoutException(Exception): | |
|
23 | pass | |
|
22 | 24 | |
|
23 | 25 | def join(a, b): |
|
24 | 26 | if a: |
|
25 | 27 | if a[-1] == '/': |
|
26 | 28 | return a + b |
|
27 | 29 | return a + '/' + b |
|
28 | 30 | return b |
|
29 | 31 | |
|
30 | 32 | def split(path): |
|
31 | 33 | c = path.rfind('/') |
|
32 | 34 | if c == -1: |
|
33 | 35 | return '', path |
|
34 | 36 | return path[:c], path[c + 1:] |
|
35 | 37 | |
|
36 | 38 | walk_ignored_errors = (errno.ENOENT, errno.ENAMETOOLONG) |
|
37 | 39 | |
|
38 | 40 | def walk(dirstate, absroot, root): |
|
39 | 41 | '''Like os.walk, but only yields regular files.''' |
|
40 | 42 | |
|
41 | 43 | # This function is critical to performance during startup. |
|
42 | 44 | |
|
43 | 45 | def walkit(root, reporoot): |
|
44 | 46 | files, dirs = [], [] |
|
45 | 47 | |
|
46 | 48 | try: |
|
47 | 49 | fullpath = join(absroot, root) |
|
48 | 50 | for name, kind in osutil.listdir(fullpath): |
|
49 | 51 | if kind == stat.S_IFDIR: |
|
50 | 52 | if name == '.hg': |
|
51 | 53 | if not reporoot: |
|
52 | 54 | return |
|
53 | 55 | else: |
|
54 | 56 | dirs.append(name) |
|
55 | 57 | path = join(root, name) |
|
56 | 58 | if dirstate._ignore(path): |
|
57 | 59 | continue |
|
58 | 60 | for result in walkit(path, False): |
|
59 | 61 | yield result |
|
60 | 62 | elif kind in (stat.S_IFREG, stat.S_IFLNK): |
|
61 | 63 | files.append(name) |
|
62 | 64 | yield fullpath, dirs, files |
|
63 | 65 | |
|
64 | 66 | except OSError, err: |
|
65 | 67 | if err.errno == errno.ENOTDIR: |
|
66 | 68 | # fullpath was a directory, but has since been replaced |
|
67 | 69 | # by a file. |
|
68 | 70 | yield fullpath, dirs, files |
|
69 | 71 | elif err.errno not in walk_ignored_errors: |
|
70 | 72 | raise |
|
71 | 73 | |
|
72 | 74 | return walkit(root, root == '') |
|
73 | 75 | |
|
74 | 76 | class directory(object): |
|
75 | 77 | """ |
|
76 | 78 | Representing a directory |
|
77 | 79 | |
|
78 | 80 | * path is the relative path from repo root to this directory |
|
79 | 81 | * files is a dict listing the files in this directory |
|
80 | 82 | - keys are file names |
|
81 | 83 | - values are file status |
|
82 | 84 | * dirs is a dict listing the subdirectories |
|
83 | 85 | - key are subdirectories names |
|
84 | 86 | - values are directory objects |
|
85 | 87 | """ |
|
86 | 88 | def __init__(self, relpath=''): |
|
87 | 89 | self.path = relpath |
|
88 | 90 | self.files = {} |
|
89 | 91 | self.dirs = {} |
|
90 | 92 | |
|
91 | 93 | def dir(self, relpath): |
|
92 | 94 | """ |
|
93 | 95 | Returns the directory contained at the relative path relpath. |
|
94 | 96 | Creates the intermediate directories if necessary. |
|
95 | 97 | """ |
|
96 | 98 | if not relpath: |
|
97 | 99 | return self |
|
98 | 100 | l = relpath.split('/') |
|
99 | 101 | ret = self |
|
100 | 102 | while l: |
|
101 | 103 | next = l.pop(0) |
|
102 | 104 | try: |
|
103 | 105 | ret = ret.dirs[next] |
|
104 | 106 | except KeyError: |
|
105 | 107 | d = directory(join(ret.path, next)) |
|
106 | 108 | ret.dirs[next] = d |
|
107 | 109 | ret = d |
|
108 | 110 | return ret |
|
109 | 111 | |
|
110 | 112 | def walk(self, states, visited=None): |
|
111 | 113 | """ |
|
112 | 114 | yield (filename, status) pairs for items in the trees |
|
113 | 115 | that have status in states. |
|
114 | 116 | filenames are relative to the repo root |
|
115 | 117 | """ |
|
116 | 118 | for file, st in self.files.iteritems(): |
|
117 | 119 | if st in states: |
|
118 | 120 | yield join(self.path, file), st |
|
119 | 121 | for dir in self.dirs.itervalues(): |
|
120 | 122 | if visited is not None: |
|
121 | 123 | visited.add(dir.path) |
|
122 | 124 | for e in dir.walk(states): |
|
123 | 125 | yield e |
|
124 | 126 | |
|
125 | 127 | def lookup(self, states, path, visited): |
|
126 | 128 | """ |
|
127 | 129 | yield root-relative filenames that match path, and whose |
|
128 | 130 | status are in states: |
|
129 | 131 | * if path is a file, yield path |
|
130 | 132 | * if path is a directory, yield directory files |
|
131 | 133 | * if path is not tracked, yield nothing |
|
132 | 134 | """ |
|
133 | 135 | if path[-1] == '/': |
|
134 | 136 | path = path[:-1] |
|
135 | 137 | |
|
136 | 138 | paths = path.split('/') |
|
137 | 139 | |
|
138 | 140 | # we need to check separately for last node |
|
139 | 141 | last = paths.pop() |
|
140 | 142 | |
|
141 | 143 | tree = self |
|
142 | 144 | try: |
|
143 | 145 | for dir in paths: |
|
144 | 146 | tree = tree.dirs[dir] |
|
145 | 147 | except KeyError: |
|
146 | 148 | # path is not tracked |
|
147 | 149 | visited.add(tree.path) |
|
148 | 150 | return |
|
149 | 151 | |
|
150 | 152 | try: |
|
151 | 153 | # if path is a directory, walk it |
|
152 | 154 | target = tree.dirs[last] |
|
153 | 155 | visited.add(target.path) |
|
154 | 156 | for file, st in target.walk(states, visited): |
|
155 | 157 | yield file |
|
156 | 158 | except KeyError: |
|
157 | 159 | try: |
|
158 | 160 | if tree.files[last] in states: |
|
159 | 161 | # path is a file |
|
160 | 162 | visited.add(tree.path) |
|
161 | 163 | yield path |
|
162 | 164 | except KeyError: |
|
163 | 165 | # path is not tracked |
|
164 | 166 | pass |
|
165 | 167 | |
|
166 | 168 | class repowatcher(object): |
|
167 | 169 | """ |
|
168 | 170 | Watches inotify events |
|
169 | 171 | """ |
|
170 | 172 | statuskeys = 'almr!?' |
|
171 | 173 | |
|
172 | 174 | def __init__(self, ui, dirstate, root): |
|
173 | 175 | self.ui = ui |
|
174 | 176 | self.dirstate = dirstate |
|
175 | 177 | |
|
176 | 178 | self.wprefix = join(root, '') |
|
177 | 179 | self.prefixlen = len(self.wprefix) |
|
178 | 180 | |
|
179 | 181 | self.tree = directory() |
|
180 | 182 | self.statcache = {} |
|
181 | 183 | self.statustrees = dict([(s, directory()) for s in self.statuskeys]) |
|
182 | 184 | |
|
183 | 185 | self.ds_info = self.dirstate_info() |
|
184 | 186 | |
|
185 | 187 | self.last_event = None |
|
186 | 188 | |
|
187 | 189 | |
|
188 | 190 | def handle_timeout(self): |
|
189 | 191 | pass |
|
190 | 192 | |
|
191 | 193 | def dirstate_info(self): |
|
192 | 194 | try: |
|
193 | 195 | st = os.lstat(self.wprefix + '.hg/dirstate') |
|
194 | 196 | return st.st_mtime, st.st_ino |
|
195 | 197 | except OSError, err: |
|
196 | 198 | if err.errno != errno.ENOENT: |
|
197 | 199 | raise |
|
198 | 200 | return 0, 0 |
|
199 | 201 | |
|
200 | 202 | def filestatus(self, fn, st): |
|
201 | 203 | try: |
|
202 | 204 | type_, mode, size, time = self.dirstate._map[fn][:4] |
|
203 | 205 | except KeyError: |
|
204 | 206 | type_ = '?' |
|
205 | 207 | if type_ == 'n': |
|
206 | 208 | st_mode, st_size, st_mtime = st |
|
207 | 209 | if size == -1: |
|
208 | 210 | return 'l' |
|
209 | 211 | if size and (size != st_size or (mode ^ st_mode) & 0100): |
|
210 | 212 | return 'm' |
|
211 | 213 | if time != int(st_mtime): |
|
212 | 214 | return 'l' |
|
213 | 215 | return 'n' |
|
214 | 216 | if type_ == '?' and self.dirstate._ignore(fn): |
|
215 | 217 | return 'i' |
|
216 | 218 | return type_ |
|
217 | 219 | |
|
218 | 220 | def updatefile(self, wfn, osstat): |
|
219 | 221 | ''' |
|
220 | 222 | update the file entry of an existing file. |
|
221 | 223 | |
|
222 | 224 | osstat: (mode, size, time) tuple, as returned by os.lstat(wfn) |
|
223 | 225 | ''' |
|
224 | 226 | |
|
225 | 227 | self._updatestatus(wfn, self.filestatus(wfn, osstat)) |
|
226 | 228 | |
|
227 | 229 | def deletefile(self, wfn, oldstatus): |
|
228 | 230 | ''' |
|
229 | 231 | update the entry of a file which has been deleted. |
|
230 | 232 | |
|
231 | 233 | oldstatus: char in statuskeys, status of the file before deletion |
|
232 | 234 | ''' |
|
233 | 235 | if oldstatus == 'r': |
|
234 | 236 | newstatus = 'r' |
|
235 | 237 | elif oldstatus in 'almn': |
|
236 | 238 | newstatus = '!' |
|
237 | 239 | else: |
|
238 | 240 | newstatus = None |
|
239 | 241 | |
|
240 | 242 | self.statcache.pop(wfn, None) |
|
241 | 243 | self._updatestatus(wfn, newstatus) |
|
242 | 244 | |
|
243 | 245 | def _updatestatus(self, wfn, newstatus): |
|
244 | 246 | ''' |
|
245 | 247 | Update the stored status of a file. |
|
246 | 248 | |
|
247 | 249 | newstatus: - char in (statuskeys + 'ni'), new status to apply. |
|
248 | 250 | - or None, to stop tracking wfn |
|
249 | 251 | ''' |
|
250 | 252 | root, fn = split(wfn) |
|
251 | 253 | d = self.tree.dir(root) |
|
252 | 254 | |
|
253 | 255 | oldstatus = d.files.get(fn) |
|
254 | 256 | # oldstatus can be either: |
|
255 | 257 | # - None : fn is new |
|
256 | 258 | # - a char in statuskeys: fn is a (tracked) file |
|
257 | 259 | |
|
258 | 260 | if self.ui.debugflag and oldstatus != newstatus: |
|
259 | 261 | self.ui.note(_('status: %r %s -> %s\n') % |
|
260 | 262 | (wfn, oldstatus, newstatus)) |
|
261 | 263 | |
|
262 | 264 | if oldstatus and oldstatus in self.statuskeys \ |
|
263 | 265 | and oldstatus != newstatus: |
|
264 | 266 | del self.statustrees[oldstatus].dir(root).files[fn] |
|
265 | 267 | |
|
266 | 268 | if newstatus in (None, 'i'): |
|
267 | 269 | d.files.pop(fn, None) |
|
268 | 270 | elif oldstatus != newstatus: |
|
269 | 271 | d.files[fn] = newstatus |
|
270 | 272 | if newstatus != 'n': |
|
271 | 273 | self.statustrees[newstatus].dir(root).files[fn] = newstatus |
|
272 | 274 | |
|
273 | 275 | def check_deleted(self, key): |
|
274 | 276 | # Files that had been deleted but were present in the dirstate |
|
275 | 277 | # may have vanished from the dirstate; we must clean them up. |
|
276 | 278 | nuke = [] |
|
277 | 279 | for wfn, ignore in self.statustrees[key].walk(key): |
|
278 | 280 | if wfn not in self.dirstate: |
|
279 | 281 | nuke.append(wfn) |
|
280 | 282 | for wfn in nuke: |
|
281 | 283 | root, fn = split(wfn) |
|
282 | 284 | del self.statustrees[key].dir(root).files[fn] |
|
283 | 285 | del self.tree.dir(root).files[fn] |
|
284 | 286 | |
|
285 | 287 | def update_hgignore(self): |
|
286 | 288 | # An update of the ignore file can potentially change the |
|
287 | 289 | # states of all unknown and ignored files. |
|
288 | 290 | |
|
289 | 291 | # XXX If the user has other ignore files outside the repo, or |
|
290 | 292 | # changes their list of ignore files at run time, we'll |
|
291 | 293 | # potentially never see changes to them. We could get the |
|
292 | 294 | # client to report to us what ignore data they're using. |
|
293 | 295 | # But it's easier to do nothing than to open that can of |
|
294 | 296 | # worms. |
|
295 | 297 | |
|
296 | 298 | if '_ignore' in self.dirstate.__dict__: |
|
297 | 299 | delattr(self.dirstate, '_ignore') |
|
298 | 300 | self.ui.note(_('rescanning due to .hgignore change\n')) |
|
299 | 301 | self.handle_timeout() |
|
300 | 302 | self.scan() |
|
301 | 303 | |
|
302 | 304 | def getstat(self, wpath): |
|
303 | 305 | try: |
|
304 | 306 | return self.statcache[wpath] |
|
305 | 307 | except KeyError: |
|
306 | 308 | try: |
|
307 | 309 | return self.stat(wpath) |
|
308 | 310 | except OSError, err: |
|
309 | 311 | if err.errno != errno.ENOENT: |
|
310 | 312 | raise |
|
311 | 313 | |
|
312 | 314 | def stat(self, wpath): |
|
313 | 315 | try: |
|
314 | 316 | st = os.lstat(join(self.wprefix, wpath)) |
|
315 | 317 | ret = st.st_mode, st.st_size, st.st_mtime |
|
316 | 318 | self.statcache[wpath] = ret |
|
317 | 319 | return ret |
|
318 | 320 | except OSError: |
|
319 | 321 | self.statcache.pop(wpath, None) |
|
320 | 322 | raise |
|
321 | 323 | |
|
322 | 324 | class socketlistener(object): |
|
323 | 325 | """ |
|
324 | 326 | Listens for client queries on unix socket inotify.sock |
|
325 | 327 | """ |
|
326 | 328 | def __init__(self, ui, root, repowatcher, timeout): |
|
327 | 329 | self.ui = ui |
|
328 | 330 | self.repowatcher = repowatcher |
|
329 | 331 | self.sock = socket.socket(socket.AF_UNIX) |
|
330 | 332 | self.sockpath = join(root, '.hg/inotify.sock') |
|
331 | 333 | self.realsockpath = None |
|
332 | 334 | try: |
|
333 | 335 | self.sock.bind(self.sockpath) |
|
334 | 336 | except socket.error, err: |
|
335 | 337 | if err[0] == errno.EADDRINUSE: |
|
336 | 338 | raise AlreadyStartedException(_('cannot start: socket is ' |
|
337 | 339 | 'already bound')) |
|
338 | 340 | if err[0] == "AF_UNIX path too long": |
|
339 | 341 | if os.path.islink(self.sockpath) and \ |
|
340 | 342 | not os.path.exists(self.sockpath): |
|
341 | 343 | raise util.Abort('inotify-server: cannot start: ' |
|
342 | 344 | '.hg/inotify.sock is a broken symlink') |
|
343 | 345 | tempdir = tempfile.mkdtemp(prefix="hg-inotify-") |
|
344 | 346 | self.realsockpath = os.path.join(tempdir, "inotify.sock") |
|
345 | 347 | try: |
|
346 | 348 | self.sock.bind(self.realsockpath) |
|
347 | 349 | os.symlink(self.realsockpath, self.sockpath) |
|
348 | 350 | except (OSError, socket.error), inst: |
|
349 | 351 | try: |
|
350 | 352 | os.unlink(self.realsockpath) |
|
351 | 353 | except: |
|
352 | 354 | pass |
|
353 | 355 | os.rmdir(tempdir) |
|
354 | 356 | if inst.errno == errno.EEXIST: |
|
355 | 357 | raise AlreadyStartedException(_('cannot start: tried ' |
|
356 | 358 | 'linking .hg/inotify.sock to a temporary socket but' |
|
357 | 359 | ' .hg/inotify.sock already exists')) |
|
358 | 360 | raise |
|
359 | 361 | else: |
|
360 | 362 | raise |
|
361 | 363 | self.sock.listen(5) |
|
362 | 364 | self.fileno = self.sock.fileno |
|
363 | 365 | |
|
364 | 366 | def answer_stat_query(self, cs): |
|
365 | 367 | names = cs.read().split('\0') |
|
366 | 368 | |
|
367 | 369 | states = names.pop() |
|
368 | 370 | |
|
369 | 371 | self.ui.note(_('answering query for %r\n') % states) |
|
370 | 372 | |
|
371 | 373 | visited = set() |
|
372 | 374 | if not names: |
|
373 | 375 | def genresult(states, tree): |
|
374 | 376 | for fn, state in tree.walk(states): |
|
375 | 377 | yield fn |
|
376 | 378 | else: |
|
377 | 379 | def genresult(states, tree): |
|
378 | 380 | for fn in names: |
|
379 | 381 | for f in tree.lookup(states, fn, visited): |
|
380 | 382 | yield f |
|
381 | 383 | |
|
382 | 384 | return ['\0'.join(r) for r in [ |
|
383 | 385 | genresult('l', self.repowatcher.statustrees['l']), |
|
384 | 386 | genresult('m', self.repowatcher.statustrees['m']), |
|
385 | 387 | genresult('a', self.repowatcher.statustrees['a']), |
|
386 | 388 | genresult('r', self.repowatcher.statustrees['r']), |
|
387 | 389 | genresult('!', self.repowatcher.statustrees['!']), |
|
388 | 390 | '?' in states |
|
389 | 391 | and genresult('?', self.repowatcher.statustrees['?']) |
|
390 | 392 | or [], |
|
391 | 393 | [], |
|
392 | 394 | 'c' in states and genresult('n', self.repowatcher.tree) or [], |
|
393 | 395 | visited |
|
394 | 396 | ]] |
|
395 | 397 | |
|
396 | 398 | def answer_dbug_query(self): |
|
397 | 399 | return ['\0'.join(self.repowatcher.debug())] |
|
398 | 400 | |
|
399 | 401 | def accept_connection(self): |
|
400 | 402 | sock, addr = self.sock.accept() |
|
401 | 403 | |
|
402 | 404 | cs = common.recvcs(sock) |
|
403 | 405 | version = ord(cs.read(1)) |
|
404 | 406 | |
|
405 | 407 | if version != common.version: |
|
406 | 408 | self.ui.warn(_('received query from incompatible client ' |
|
407 | 409 | 'version %d\n') % version) |
|
408 | 410 | try: |
|
409 | 411 | # try to send back our version to the client |
|
410 | 412 | # this way, the client too is informed of the mismatch |
|
411 | 413 | sock.sendall(chr(common.version)) |
|
412 | 414 | except: |
|
413 | 415 | pass |
|
414 | 416 | return |
|
415 | 417 | |
|
416 | 418 | type = cs.read(4) |
|
417 | 419 | |
|
418 | 420 | if type == 'STAT': |
|
419 | 421 | results = self.answer_stat_query(cs) |
|
420 | 422 | elif type == 'DBUG': |
|
421 | 423 | results = self.answer_dbug_query() |
|
422 | 424 | else: |
|
423 | 425 | self.ui.warn(_('unrecognized query type: %s\n') % type) |
|
424 | 426 | return |
|
425 | 427 | |
|
426 | 428 | try: |
|
427 | 429 | try: |
|
428 | 430 | v = chr(common.version) |
|
429 | 431 | |
|
430 | 432 | sock.sendall(v + type + struct.pack(common.resphdrfmts[type], |
|
431 | 433 | *map(len, results))) |
|
432 | 434 | sock.sendall(''.join(results)) |
|
433 | 435 | finally: |
|
434 | 436 | sock.shutdown(socket.SHUT_WR) |
|
435 | 437 | except socket.error, err: |
|
436 | 438 | if err[0] != errno.EPIPE: |
|
437 | 439 | raise |
|
438 | 440 | |
|
439 | 441 | if sys.platform == 'linux2': |
|
440 | 442 | import linuxserver as _server |
|
441 | 443 | else: |
|
442 | 444 | raise ImportError |
|
443 | 445 | |
|
444 | 446 | master = _server.master |
|
445 | 447 | |
|
446 | 448 | def start(ui, dirstate, root, opts): |
|
447 | timeout = opts.get('timeout') | |
|
449 | timeout = opts.get('idle_timeout') | |
|
448 | 450 | if timeout: |
|
449 |
timeout = float(timeout) * |
|
|
451 | timeout = float(timeout) * 60000 | |
|
452 | else: | |
|
453 | timeout = None | |
|
450 | 454 | |
|
451 | 455 | class service(object): |
|
452 | 456 | def init(self): |
|
453 | 457 | try: |
|
454 | 458 | self.master = master(ui, dirstate, root, timeout) |
|
455 | 459 | except AlreadyStartedException, inst: |
|
456 | 460 | raise util.Abort("inotify-server: %s" % inst) |
|
457 | 461 | |
|
458 | 462 | def run(self): |
|
459 | 463 | try: |
|
460 |
|
|
|
464 | try: | |
|
465 | self.master.run() | |
|
466 | except TimeoutException: | |
|
467 | pass | |
|
461 | 468 | finally: |
|
462 | 469 | self.master.shutdown() |
|
463 | 470 | |
|
464 | 471 | if 'inserve' not in sys.argv: |
|
465 | 472 | runargs = util.hgcmd() + ['inserve', '-R', root] |
|
466 | 473 | else: |
|
467 | 474 | runargs = util.hgcmd() + sys.argv[1:] |
|
468 | 475 | |
|
469 | 476 | pidfile = ui.config('inotify', 'pidfile') |
|
470 | 477 | if opts['daemon'] and pidfile is not None and 'pid-file' not in runargs: |
|
471 | 478 | runargs.append("--pid-file=%s" % pidfile) |
|
472 | 479 | |
|
473 | 480 | service = service() |
|
474 | 481 | logfile = ui.config('inotify', 'log') |
|
475 | 482 | |
|
476 | 483 | appendpid = ui.configbool('inotify', 'appendpid', False) |
|
477 | 484 | |
|
478 | 485 | cmdutil.service(opts, initfn=service.init, runfn=service.run, |
|
479 | 486 | logfile=logfile, runargs=runargs, appendpid=appendpid) |
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