Mercurial > hg
annotate hgext/inotify/server.py @ 9349:56fb15ad8fb1
inotify: server: use wprefix everywhere, introduce prefixlen
self.wprefix = self.repo.root + '/' = self.repo.wjoin('') + '/'
Since we'll eventually get rid of self.repo, keep only the first form.
use self.prefixlen to compute only once the root prefix size.
author | Nicolas Dumazet <nicdumz.commits@gmail.com> |
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date | Mon, 29 Jun 2009 01:05:06 +0900 |
parents | 954f7a879495 |
children | b789ea382fc0 |
rev | line source |
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6239 | 1 # server.py - inotify status server |
2 # | |
3 # Copyright 2006, 2007, 2008 Bryan O'Sullivan <bos@serpentine.com> | |
4 # Copyright 2007, 2008 Brendan Cully <brendan@kublai.com> | |
5 # | |
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6 # This software may be used and distributed according to the terms of the |
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7 # GNU General Public License version 2, incorporated herein by reference. |
6239 | 8 |
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9 from mercurial.i18n import _ |
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10 from mercurial import osutil, util |
6239 | 11 import common |
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12 import errno, os, select, socket, stat, struct, sys, tempfile, time |
6239 | 13 |
14 try: | |
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15 import linux as inotify |
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16 from linux import watcher |
6239 | 17 except ImportError: |
18 raise | |
19 | |
20 class AlreadyStartedException(Exception): pass | |
21 | |
22 def join(a, b): | |
23 if a: | |
24 if a[-1] == '/': | |
25 return a + b | |
26 return a + '/' + b | |
27 return b | |
28 | |
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29 def split(path): |
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30 c = path.rfind('/') |
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31 if c == -1: |
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32 return '', path |
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33 return path[:c], path[c+1:] |
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34 |
6239 | 35 walk_ignored_errors = (errno.ENOENT, errno.ENAMETOOLONG) |
36 | |
37 def walkrepodirs(repo): | |
38 '''Iterate over all subdirectories of this repo. | |
39 Exclude the .hg directory, any nested repos, and ignored dirs.''' | |
40 rootslash = repo.root + os.sep | |
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41 |
6239 | 42 def walkit(dirname, top): |
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43 fullpath = rootslash + dirname |
6239 | 44 try: |
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45 for name, kind in osutil.listdir(fullpath): |
6239 | 46 if kind == stat.S_IFDIR: |
47 if name == '.hg': | |
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48 if not top: |
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49 return |
6239 | 50 else: |
51 d = join(dirname, name) | |
52 if repo.dirstate._ignore(d): | |
53 continue | |
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54 for subdir in walkit(d, False): |
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55 yield subdir |
6239 | 56 except OSError, err: |
57 if err.errno not in walk_ignored_errors: | |
58 raise | |
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59 yield fullpath |
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60 |
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61 return walkit('', True) |
6239 | 62 |
63 def walk(repo, root): | |
64 '''Like os.walk, but only yields regular files.''' | |
65 | |
66 # This function is critical to performance during startup. | |
67 | |
68 rootslash = repo.root + os.sep | |
69 | |
70 def walkit(root, reporoot): | |
71 files, dirs = [], [] | |
72 | |
73 try: | |
74 fullpath = rootslash + root | |
75 for name, kind in osutil.listdir(fullpath): | |
76 if kind == stat.S_IFDIR: | |
77 if name == '.hg': | |
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78 if not reporoot: |
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79 return |
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80 else: |
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81 dirs.append(name) |
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82 path = join(root, name) |
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83 if repo.dirstate._ignore(path): |
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84 continue |
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85 for result in walkit(path, False): |
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86 yield result |
6239 | 87 elif kind in (stat.S_IFREG, stat.S_IFLNK): |
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88 files.append(name) |
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89 yield fullpath, dirs, files |
6239 | 90 |
91 except OSError, err: | |
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92 if err.errno == errno.ENOTDIR: |
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93 # fullpath was a directory, but has since been replaced |
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94 # by a file. |
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95 yield fullpath, dirs, files |
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96 elif err.errno not in walk_ignored_errors: |
6239 | 97 raise |
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98 |
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99 return walkit(root, root == '') |
6239 | 100 |
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101 def _explain_watch_limit(ui, repo): |
6239 | 102 path = '/proc/sys/fs/inotify/max_user_watches' |
103 try: | |
104 limit = int(file(path).read()) | |
105 except IOError, err: | |
106 if err.errno != errno.ENOENT: | |
107 raise | |
108 raise util.Abort(_('this system does not seem to ' | |
109 'support inotify')) | |
110 ui.warn(_('*** the current per-user limit on the number ' | |
111 'of inotify watches is %s\n') % limit) | |
112 ui.warn(_('*** this limit is too low to watch every ' | |
113 'directory in this repository\n')) | |
114 ui.warn(_('*** counting directories: ')) | |
115 ndirs = len(list(walkrepodirs(repo))) | |
116 ui.warn(_('found %d\n') % ndirs) | |
117 newlimit = min(limit, 1024) | |
118 while newlimit < ((limit + ndirs) * 1.1): | |
119 newlimit *= 2 | |
120 ui.warn(_('*** to raise the limit from %d to %d (run as root):\n') % | |
121 (limit, newlimit)) | |
122 ui.warn(_('*** echo %d > %s\n') % (newlimit, path)) | |
123 raise util.Abort(_('cannot watch %s until inotify watch limit is raised') | |
124 % repo.root) | |
125 | |
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126 class pollable(object): |
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127 """ |
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128 Interface to support polling. |
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129 The file descriptor returned by fileno() is registered to a polling |
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130 object. |
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131 Usage: |
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132 Every tick, check if an event has happened since the last tick: |
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133 * If yes, call handle_events |
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134 * If no, call handle_timeout |
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135 """ |
6239 | 136 poll_events = select.POLLIN |
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137 instances = {} |
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138 poll = select.poll() |
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139 |
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140 def fileno(self): |
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141 raise NotImplementedError |
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142 |
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143 def handle_events(self, events): |
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144 raise NotImplementedError |
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145 |
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146 def handle_timeout(self): |
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147 raise NotImplementedError |
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148 |
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149 def shutdown(self): |
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150 raise NotImplementedError |
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151 |
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152 def register(self, timeout): |
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153 fd = self.fileno() |
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154 |
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155 pollable.poll.register(fd, pollable.poll_events) |
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156 pollable.instances[fd] = self |
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157 |
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158 self.registered = True |
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159 self.timeout = timeout |
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160 |
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161 def unregister(self): |
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162 pollable.poll.unregister(self) |
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163 self.registered = False |
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164 |
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165 @classmethod |
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166 def run(cls): |
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167 while True: |
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168 timeout = None |
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169 timeobj = None |
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170 for obj in cls.instances.itervalues(): |
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171 if obj.timeout is not None and (timeout is None or obj.timeout < timeout): |
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172 timeout, timeobj = obj.timeout, obj |
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173 try: |
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174 events = cls.poll.poll(timeout) |
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175 except select.error, err: |
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176 if err[0] == errno.EINTR: |
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177 continue |
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178 raise |
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179 if events: |
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180 by_fd = {} |
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181 for fd, event in events: |
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182 by_fd.setdefault(fd, []).append(event) |
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183 |
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184 for fd, events in by_fd.iteritems(): |
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185 cls.instances[fd].handle_pollevents(events) |
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186 |
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187 elif timeobj: |
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188 timeobj.handle_timeout() |
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189 |
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190 def eventaction(code): |
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191 """ |
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192 Decorator to help handle events in repowatcher |
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193 """ |
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194 def decorator(f): |
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195 def wrapper(self, wpath): |
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196 if code == 'm' and wpath in self.lastevent and \ |
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197 self.lastevent[wpath] in 'cm': |
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198 return |
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199 self.lastevent[wpath] = code |
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200 self.timeout = 250 |
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201 |
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202 f(self, wpath) |
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203 |
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204 wrapper.func_name = f.func_name |
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205 return wrapper |
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206 return decorator |
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207 |
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208 class directory(object): |
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209 """ |
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210 Representing a directory |
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211 |
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212 * path is the relative path from repo root to this directory |
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213 * files is a dict listing the files in this directory |
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214 - keys are file names |
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215 - values are file status |
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216 * dirs is a dict listing the subdirectories |
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217 - key are subdirectories names |
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218 - values are directory objects |
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219 """ |
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220 def __init__(self, relpath=''): |
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221 self.path = relpath |
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222 self.files = {} |
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223 self.dirs = {} |
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224 |
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225 def dir(self, relpath): |
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226 """ |
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227 Returns the directory contained at the relative path relpath. |
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228 Creates the intermediate directories if necessary. |
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229 """ |
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230 if not relpath: |
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231 return self |
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232 l = relpath.split('/') |
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233 ret = self |
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234 while l: |
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235 next = l.pop(0) |
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236 try: |
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237 ret = ret.dirs[next] |
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238 except KeyError: |
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239 d = directory(join(ret.path, next)) |
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240 ret.dirs[next] = d |
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241 ret = d |
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242 return ret |
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243 |
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244 def walk(self, states): |
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245 """ |
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246 yield (filename, status) pairs for items in the trees |
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247 that have status in states. |
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248 filenames are relative to the repo root |
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249 """ |
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250 for file, st in self.files.iteritems(): |
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251 if st in states: |
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252 yield join(self.path, file), st |
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253 for dir in self.dirs.itervalues(): |
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254 for e in dir.walk(states): |
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255 yield e |
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256 |
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257 def lookup(self, states, path): |
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258 """ |
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259 yield root-relative filenames that match path, and whose |
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260 status are in states: |
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261 * if path is a file, yield path |
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262 * if path is a directory, yield directory files |
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263 * if path is not tracked, yield nothing |
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264 """ |
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265 if path[-1] == '/': |
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266 path = path[:-1] |
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267 |
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268 paths = path.split('/') |
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269 |
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270 # we need to check separately for last node |
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271 last = paths.pop() |
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272 |
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273 tree = self |
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274 try: |
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275 for dir in paths: |
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276 tree = tree.dirs[dir] |
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277 except KeyError: |
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278 # path is not tracked |
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279 return |
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280 |
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diff
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281 try: |
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282 # if path is a directory, walk it |
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|
283 for file, st in tree.dirs[last].walk(states): |
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diff
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|
284 yield file |
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285 except KeyError: |
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286 try: |
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diff
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287 if tree.files[last] in states: |
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288 # path is a file |
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|
289 yield path |
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290 except KeyError: |
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291 # path is not tracked |
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diff
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|
292 pass |
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293 |
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294 class repowatcher(pollable): |
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|
295 """ |
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296 Watches inotify events |
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|
297 """ |
6239 | 298 statuskeys = 'almr!?' |
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299 mask = ( |
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300 inotify.IN_ATTRIB | |
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301 inotify.IN_CREATE | |
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|
302 inotify.IN_DELETE | |
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303 inotify.IN_DELETE_SELF | |
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304 inotify.IN_MODIFY | |
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305 inotify.IN_MOVED_FROM | |
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306 inotify.IN_MOVED_TO | |
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|
307 inotify.IN_MOVE_SELF | |
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|
308 inotify.IN_ONLYDIR | |
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|
309 inotify.IN_UNMOUNT | |
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diff
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|
310 0) |
6239 | 311 |
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312 def __init__(self, ui, repo): |
6239 | 313 self.ui = ui |
314 self.repo = repo | |
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315 self.wprefix = join(repo.root, '') |
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316 self.prefixlen = len(self.wprefix) |
6239 | 317 try: |
8385
1536501ade62
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diff
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|
318 self.watcher = watcher.watcher() |
6239 | 319 except OSError, err: |
320 raise util.Abort(_('inotify service not available: %s') % | |
321 err.strerror) | |
8385
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diff
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|
322 self.threshold = watcher.threshold(self.watcher) |
6239 | 323 self.fileno = self.watcher.fileno |
324 | |
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diff
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325 self.tree = directory() |
6239 | 326 self.statcache = {} |
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327 self.statustrees = dict([(s, directory()) for s in self.statuskeys]) |
6239 | 328 |
329 self.last_event = None | |
330 | |
8605
ed2d9bdbfad2
inotify: do not defer inotify events processing
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8604
diff
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|
331 self.lastevent = {} |
6239 | 332 |
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diff
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|
333 self.register(timeout=None) |
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|
334 |
6239 | 335 self.ds_info = self.dirstate_info() |
8604
578f2a0049cd
inotify: do not recurse in handle_timeout(): call it explicitely, not in scan()
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diff
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|
336 self.handle_timeout() |
6239 | 337 self.scan() |
338 | |
339 def event_time(self): | |
340 last = self.last_event | |
341 now = time.time() | |
342 self.last_event = now | |
343 | |
344 if last is None: | |
345 return 'start' | |
346 delta = now - last | |
347 if delta < 5: | |
348 return '+%.3f' % delta | |
349 if delta < 50: | |
350 return '+%.2f' % delta | |
351 return '+%.1f' % delta | |
352 | |
353 def dirstate_info(self): | |
354 try: | |
355 st = os.lstat(self.repo.join('dirstate')) | |
356 return st.st_mtime, st.st_ino | |
357 except OSError, err: | |
358 if err.errno != errno.ENOENT: | |
359 raise | |
360 return 0, 0 | |
361 | |
362 def add_watch(self, path, mask): | |
363 if not path: | |
364 return | |
365 if self.watcher.path(path) is None: | |
366 if self.ui.debugflag: | |
9349
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367 self.ui.note(_('watching %r\n') % path[self.prefixlen:]) |
6239 | 368 try: |
369 self.watcher.add(path, mask) | |
370 except OSError, err: | |
371 if err.errno in (errno.ENOENT, errno.ENOTDIR): | |
372 return | |
373 if err.errno != errno.ENOSPC: | |
374 raise | |
8786
55af9be4efac
inotify: remove unused variables
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
8610
diff
changeset
|
375 _explain_watch_limit(self.ui, self.repo) |
6239 | 376 |
377 def setup(self): | |
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diff
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|
378 self.ui.note(_('watching directories under %r\n') % self.wprefix) |
6239 | 379 self.add_watch(self.repo.path, inotify.IN_DELETE) |
380 self.check_dirstate() | |
381 | |
382 def filestatus(self, fn, st): | |
383 try: | |
384 type_, mode, size, time = self.repo.dirstate._map[fn][:4] | |
385 except KeyError: | |
386 type_ = '?' | |
387 if type_ == 'n': | |
388 st_mode, st_size, st_mtime = st | |
7082
be81b4788115
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6998
diff
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|
389 if size == -1: |
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diff
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|
390 return 'l' |
6239 | 391 if size and (size != st_size or (mode ^ st_mode) & 0100): |
392 return 'm' | |
393 if time != int(st_mtime): | |
394 return 'l' | |
395 return 'n' | |
396 if type_ == '?' and self.repo.dirstate._ignore(fn): | |
397 return 'i' | |
398 return type_ | |
399 | |
8599
1f706b1b62f3
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diff
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|
400 def updatefile(self, wfn, osstat): |
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diff
changeset
|
401 ''' |
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diff
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|
402 update the file entry of an existing file. |
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diff
changeset
|
403 |
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diff
changeset
|
404 osstat: (mode, size, time) tuple, as returned by os.lstat(wfn) |
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diff
changeset
|
405 ''' |
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diff
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|
406 |
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diff
changeset
|
407 self._updatestatus(wfn, self.filestatus(wfn, osstat)) |
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diff
changeset
|
408 |
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diff
changeset
|
409 def deletefile(self, wfn, oldstatus): |
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diff
changeset
|
410 ''' |
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diff
changeset
|
411 update the entry of a file which has been deleted. |
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inotify: server: refactor updatestatus()
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diff
changeset
|
412 |
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diff
changeset
|
413 oldstatus: char in statuskeys, status of the file before deletion |
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diff
changeset
|
414 ''' |
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diff
changeset
|
415 if oldstatus == 'r': |
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diff
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|
416 newstatus = 'r' |
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diff
changeset
|
417 elif oldstatus in 'almn': |
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diff
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|
418 newstatus = '!' |
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diff
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419 else: |
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diff
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|
420 newstatus = None |
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diff
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|
421 |
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diff
changeset
|
422 self.statcache.pop(wfn, None) |
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diff
changeset
|
423 self._updatestatus(wfn, newstatus) |
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diff
changeset
|
424 |
1f706b1b62f3
inotify: server: refactor updatestatus()
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diff
changeset
|
425 def _updatestatus(self, wfn, newstatus): |
8382
6f44b1adc948
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|
426 ''' |
9115
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diff
changeset
|
427 Update the stored status of a file. |
8382
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diff
changeset
|
428 |
8599
1f706b1b62f3
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diff
changeset
|
429 newstatus: - char in (statuskeys + 'ni'), new status to apply. |
1f706b1b62f3
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diff
changeset
|
430 - or None, to stop tracking wfn |
8382
6f44b1adc948
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parents:
8381
diff
changeset
|
431 ''' |
8787
9aca76502280
inotify: server: move split() out of server
Nicolas Dumazet <nicdumz.commits@gmail.com>
parents:
8786
diff
changeset
|
432 root, fn = split(wfn) |
9115
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diff
changeset
|
433 d = self.tree.dir(root) |
8599
1f706b1b62f3
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diff
changeset
|
434 |
9115
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parents:
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diff
changeset
|
435 oldstatus = d.files.get(fn) |
8599
1f706b1b62f3
inotify: server: refactor updatestatus()
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diff
changeset
|
436 # oldstatus can be either: |
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diff
changeset
|
437 # - None : fn is new |
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diff
changeset
|
438 # - a char in statuskeys: fn is a (tracked) file |
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parents:
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diff
changeset
|
439 |
8382
6f44b1adc948
inotify: RepoWatcher.updatestatus: document & use meaningful parameter names
Nicolas Dumazet <nicdumz.commits@gmail.com>
parents:
8381
diff
changeset
|
440 if self.ui.debugflag and oldstatus != newstatus: |
9115
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diff
changeset
|
441 self.ui.note(_('status: %r %s -> %s\n') % |
8382
6f44b1adc948
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parents:
8381
diff
changeset
|
442 (wfn, oldstatus, newstatus)) |
9115
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parents:
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diff
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|
443 |
b55d44719b47
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parents:
8953
diff
changeset
|
444 if oldstatus and oldstatus in self.statuskeys \ |
b55d44719b47
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parents:
8953
diff
changeset
|
445 and oldstatus != newstatus: |
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Nicolas Dumazet <nicdumz.commits@gmail.com>
parents:
8953
diff
changeset
|
446 del self.statustrees[oldstatus].dir(root).files[fn] |
9348
954f7a879495
inotify: server._updatestatus: simplify control flow
Nicolas Dumazet <nicdumz.commits@gmail.com>
parents:
9117
diff
changeset
|
447 |
954f7a879495
inotify: server._updatestatus: simplify control flow
Nicolas Dumazet <nicdumz.commits@gmail.com>
parents:
9117
diff
changeset
|
448 if newstatus in (None, 'i'): |
954f7a879495
inotify: server._updatestatus: simplify control flow
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parents:
9117
diff
changeset
|
449 d.files.pop(fn, None) |
954f7a879495
inotify: server._updatestatus: simplify control flow
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parents:
9117
diff
changeset
|
450 elif oldstatus != newstatus: |
9115
b55d44719b47
inotify: server: new data structure to keep track of changes.
Nicolas Dumazet <nicdumz.commits@gmail.com>
parents:
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diff
changeset
|
451 d.files[fn] = newstatus |
9348
954f7a879495
inotify: server._updatestatus: simplify control flow
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parents:
9117
diff
changeset
|
452 if newstatus != 'n': |
954f7a879495
inotify: server._updatestatus: simplify control flow
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parents:
9117
diff
changeset
|
453 self.statustrees[newstatus].dir(root).files[fn] = newstatus |
7892
67e59a9886d5
Fixing issue1542, adding a relevant test
Nicolas Dumazet <nicdumz.commits@gmail.com>
parents:
7451
diff
changeset
|
454 |
6239 | 455 |
456 def check_deleted(self, key): | |
457 # Files that had been deleted but were present in the dirstate | |
458 # may have vanished from the dirstate; we must clean them up. | |
459 nuke = [] | |
9115
b55d44719b47
inotify: server: new data structure to keep track of changes.
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parents:
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diff
changeset
|
460 for wfn, ignore in self.statustrees[key].walk(key): |
6239 | 461 if wfn not in self.repo.dirstate: |
462 nuke.append(wfn) | |
463 for wfn in nuke: | |
8787
9aca76502280
inotify: server: move split() out of server
Nicolas Dumazet <nicdumz.commits@gmail.com>
parents:
8786
diff
changeset
|
464 root, fn = split(wfn) |
9115
b55d44719b47
inotify: server: new data structure to keep track of changes.
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parents:
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diff
changeset
|
465 del self.statustrees[key].dir(root).files[fn] |
b55d44719b47
inotify: server: new data structure to keep track of changes.
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parents:
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diff
changeset
|
466 del self.tree.dir(root).files[fn] |
6287
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parents:
6239
diff
changeset
|
467 |
6239 | 468 def scan(self, topdir=''): |
469 ds = self.repo.dirstate._map.copy() | |
9349
56fb15ad8fb1
inotify: server: use wprefix everywhere, introduce prefixlen
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parents:
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diff
changeset
|
470 self.add_watch(join(self.wprefix, topdir), self.mask) |
8334
0695288e8c37
inotify: inotify.server.walk() filetype is never used, do not yield it
Nicolas Dumazet <nicdumz.commits@gmail.com>
parents:
8325
diff
changeset
|
471 for root, dirs, files in walk(self.repo, topdir): |
6239 | 472 for d in dirs: |
473 self.add_watch(join(root, d), self.mask) | |
9349
56fb15ad8fb1
inotify: server: use wprefix everywhere, introduce prefixlen
Nicolas Dumazet <nicdumz.commits@gmail.com>
parents:
9348
diff
changeset
|
474 wroot = root[self.prefixlen:] |
8334
0695288e8c37
inotify: inotify.server.walk() filetype is never used, do not yield it
Nicolas Dumazet <nicdumz.commits@gmail.com>
parents:
8325
diff
changeset
|
475 for fn in files: |
6239 | 476 wfn = join(wroot, fn) |
8599
1f706b1b62f3
inotify: server: refactor updatestatus()
Nicolas Dumazet <nicdumz.commits@gmail.com>
parents:
8557
diff
changeset
|
477 self.updatefile(wfn, self.getstat(wfn)) |
6239 | 478 ds.pop(wfn, None) |
479 wtopdir = topdir | |
480 if wtopdir and wtopdir[-1] != '/': | |
481 wtopdir += '/' | |
482 for wfn, state in ds.iteritems(): | |
483 if not wfn.startswith(wtopdir): | |
484 continue | |
7302
972737252d05
inotify: server raising an error when removing a file (issue1371)
Gerard Korsten <soonkia77@gmail.com>
parents:
7280
diff
changeset
|
485 try: |
972737252d05
inotify: server raising an error when removing a file (issue1371)
Gerard Korsten <soonkia77@gmail.com>
parents:
7280
diff
changeset
|
486 st = self.stat(wfn) |
972737252d05
inotify: server raising an error when removing a file (issue1371)
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7280
diff
changeset
|
487 except OSError: |
972737252d05
inotify: server raising an error when removing a file (issue1371)
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parents:
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diff
changeset
|
488 status = state[0] |
8599
1f706b1b62f3
inotify: server: refactor updatestatus()
Nicolas Dumazet <nicdumz.commits@gmail.com>
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diff
changeset
|
489 self.deletefile(wfn, status) |
6239 | 490 else: |
8599
1f706b1b62f3
inotify: server: refactor updatestatus()
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parents:
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diff
changeset
|
491 self.updatefile(wfn, st) |
6239 | 492 self.check_deleted('!') |
493 self.check_deleted('r') | |
494 | |
495 def check_dirstate(self): | |
496 ds_info = self.dirstate_info() | |
497 if ds_info == self.ds_info: | |
498 return | |
499 self.ds_info = ds_info | |
500 if not self.ui.debugflag: | |
501 self.last_event = None | |
502 self.ui.note(_('%s dirstate reload\n') % self.event_time()) | |
503 self.repo.dirstate.invalidate() | |
8604
578f2a0049cd
inotify: do not recurse in handle_timeout(): call it explicitely, not in scan()
Nicolas Dumazet <nicdumz.commits@gmail.com>
parents:
8600
diff
changeset
|
504 self.handle_timeout() |
6239 | 505 self.scan() |
506 self.ui.note(_('%s end dirstate reload\n') % self.event_time()) | |
507 | |
508 def update_hgignore(self): | |
509 # An update of the ignore file can potentially change the | |
510 # states of all unknown and ignored files. | |
511 | |
512 # XXX If the user has other ignore files outside the repo, or | |
513 # changes their list of ignore files at run time, we'll | |
514 # potentially never see changes to them. We could get the | |
515 # client to report to us what ignore data they're using. | |
516 # But it's easier to do nothing than to open that can of | |
517 # worms. | |
518 | |
7085
1fcc282e2c43
inotify: fixup rebuilding ignore
Matt Mackall <mpm@selenic.com>
parents:
7082
diff
changeset
|
519 if '_ignore' in self.repo.dirstate.__dict__: |
1fcc282e2c43
inotify: fixup rebuilding ignore
Matt Mackall <mpm@selenic.com>
parents:
7082
diff
changeset
|
520 delattr(self.repo.dirstate, '_ignore') |
6961
12163fb21fce
i18n: mark strings for translation in inotify extension
Martin Geisler <mg@daimi.au.dk>
parents:
6909
diff
changeset
|
521 self.ui.note(_('rescanning due to .hgignore change\n')) |
8604
578f2a0049cd
inotify: do not recurse in handle_timeout(): call it explicitely, not in scan()
Nicolas Dumazet <nicdumz.commits@gmail.com>
parents:
8600
diff
changeset
|
522 self.handle_timeout() |
6239 | 523 self.scan() |
6287
c86207d41512
Spacing cleanup
Thomas Arendsen Hein <thomas@intevation.de>
parents:
6239
diff
changeset
|
524 |
6239 | 525 def getstat(self, wpath): |
526 try: | |
527 return self.statcache[wpath] | |
528 except KeyError: | |
529 try: | |
530 return self.stat(wpath) | |
531 except OSError, err: | |
532 if err.errno != errno.ENOENT: | |
533 raise | |
6287
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Spacing cleanup
Thomas Arendsen Hein <thomas@intevation.de>
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diff
changeset
|
534 |
6239 | 535 def stat(self, wpath): |
536 try: | |
537 st = os.lstat(join(self.wprefix, wpath)) | |
538 ret = st.st_mode, st.st_size, st.st_mtime | |
539 self.statcache[wpath] = ret | |
540 return ret | |
7280
810ca383da9c
remove unused variables
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
7220
diff
changeset
|
541 except OSError: |
6239 | 542 self.statcache.pop(wpath, None) |
543 raise | |
6287
c86207d41512
Spacing cleanup
Thomas Arendsen Hein <thomas@intevation.de>
parents:
6239
diff
changeset
|
544 |
8606
1c5752dabf76
inotify: use a decorator instead of dispatching calls
Nicolas Dumazet <nicdumz.commits@gmail.com>
parents:
8605
diff
changeset
|
545 @eventaction('c') |
6239 | 546 def created(self, wpath): |
547 if wpath == '.hgignore': | |
548 self.update_hgignore() | |
549 try: | |
550 st = self.stat(wpath) | |
551 if stat.S_ISREG(st[0]): | |
8599
1f706b1b62f3
inotify: server: refactor updatestatus()
Nicolas Dumazet <nicdumz.commits@gmail.com>
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8557
diff
changeset
|
552 self.updatefile(wpath, st) |
7280
810ca383da9c
remove unused variables
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
7220
diff
changeset
|
553 except OSError: |
6239 | 554 pass |
555 | |
8606
1c5752dabf76
inotify: use a decorator instead of dispatching calls
Nicolas Dumazet <nicdumz.commits@gmail.com>
parents:
8605
diff
changeset
|
556 @eventaction('m') |
6239 | 557 def modified(self, wpath): |
558 if wpath == '.hgignore': | |
559 self.update_hgignore() | |
560 try: | |
561 st = self.stat(wpath) | |
562 if stat.S_ISREG(st[0]): | |
563 if self.repo.dirstate[wpath] in 'lmn': | |
8599
1f706b1b62f3
inotify: server: refactor updatestatus()
Nicolas Dumazet <nicdumz.commits@gmail.com>
parents:
8557
diff
changeset
|
564 self.updatefile(wpath, st) |
6239 | 565 except OSError: |
566 pass | |
567 | |
8606
1c5752dabf76
inotify: use a decorator instead of dispatching calls
Nicolas Dumazet <nicdumz.commits@gmail.com>
parents:
8605
diff
changeset
|
568 @eventaction('d') |
6239 | 569 def deleted(self, wpath): |
570 if wpath == '.hgignore': | |
571 self.update_hgignore() | |
572 elif wpath.startswith('.hg/'): | |
573 if wpath == '.hg/wlock': | |
574 self.check_dirstate() | |
575 return | |
576 | |
8599
1f706b1b62f3
inotify: server: refactor updatestatus()
Nicolas Dumazet <nicdumz.commits@gmail.com>
parents:
8557
diff
changeset
|
577 self.deletefile(wpath, self.repo.dirstate[wpath]) |
6287
c86207d41512
Spacing cleanup
Thomas Arendsen Hein <thomas@intevation.de>
parents:
6239
diff
changeset
|
578 |
6239 | 579 def process_create(self, wpath, evt): |
580 if self.ui.debugflag: | |
581 self.ui.note(_('%s event: created %s\n') % | |
582 (self.event_time(), wpath)) | |
583 | |
584 if evt.mask & inotify.IN_ISDIR: | |
585 self.scan(wpath) | |
586 else: | |
8606
1c5752dabf76
inotify: use a decorator instead of dispatching calls
Nicolas Dumazet <nicdumz.commits@gmail.com>
parents:
8605
diff
changeset
|
587 self.created(wpath) |
6239 | 588 |
589 def process_delete(self, wpath, evt): | |
590 if self.ui.debugflag: | |
6961
12163fb21fce
i18n: mark strings for translation in inotify extension
Martin Geisler <mg@daimi.au.dk>
parents:
6909
diff
changeset
|
591 self.ui.note(_('%s event: deleted %s\n') % |
6239 | 592 (self.event_time(), wpath)) |
593 | |
594 if evt.mask & inotify.IN_ISDIR: | |
9115
b55d44719b47
inotify: server: new data structure to keep track of changes.
Nicolas Dumazet <nicdumz.commits@gmail.com>
parents:
8953
diff
changeset
|
595 tree = self.tree.dir(wpath) |
b55d44719b47
inotify: server: new data structure to keep track of changes.
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parents:
8953
diff
changeset
|
596 todelete = [wfn for wfn, ignore in tree.walk('?')] |
b55d44719b47
inotify: server: new data structure to keep track of changes.
Nicolas Dumazet <nicdumz.commits@gmail.com>
parents:
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diff
changeset
|
597 for fn in todelete: |
b55d44719b47
inotify: server: new data structure to keep track of changes.
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parents:
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diff
changeset
|
598 self.deletefile(fn, '?') |
6239 | 599 self.scan(wpath) |
8600
d46cdfcecaf1
inotify: proper fix for issue1542 (partially reverting 67e59a9886d5)
Nicolas Dumazet <nicdumz.commits@gmail.com>
parents:
8599
diff
changeset
|
600 else: |
8606
1c5752dabf76
inotify: use a decorator instead of dispatching calls
Nicolas Dumazet <nicdumz.commits@gmail.com>
parents:
8605
diff
changeset
|
601 self.deleted(wpath) |
6239 | 602 |
603 def process_modify(self, wpath, evt): | |
604 if self.ui.debugflag: | |
605 self.ui.note(_('%s event: modified %s\n') % | |
606 (self.event_time(), wpath)) | |
607 | |
608 if not (evt.mask & inotify.IN_ISDIR): | |
8606
1c5752dabf76
inotify: use a decorator instead of dispatching calls
Nicolas Dumazet <nicdumz.commits@gmail.com>
parents:
8605
diff
changeset
|
609 self.modified(wpath) |
6239 | 610 |
611 def process_unmount(self, evt): | |
612 self.ui.warn(_('filesystem containing %s was unmounted\n') % | |
613 evt.fullpath) | |
614 sys.exit(0) | |
615 | |
8609
aeaa0bd9dc24
inotify: process all inotify events in one batch
Nicolas Dumazet <nicdumz.commits@gmail.com>
parents:
8608
diff
changeset
|
616 def handle_pollevents(self, events): |
6239 | 617 if self.ui.debugflag: |
6961
12163fb21fce
i18n: mark strings for translation in inotify extension
Martin Geisler <mg@daimi.au.dk>
parents:
6909
diff
changeset
|
618 self.ui.note(_('%s readable: %d bytes\n') % |
6239 | 619 (self.event_time(), self.threshold.readable())) |
620 if not self.threshold(): | |
621 if self.registered: | |
622 if self.ui.debugflag: | |
6961
12163fb21fce
i18n: mark strings for translation in inotify extension
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parents:
6909
diff
changeset
|
623 self.ui.note(_('%s below threshold - unhooking\n') % |
6239 | 624 (self.event_time())) |
8792
3e23b1d20837
inotify: refactor (un)register methods into pollable object
Nicolas Dumazet <nicdumz.commits@gmail.com>
parents:
8791
diff
changeset
|
625 self.unregister() |
6239 | 626 self.timeout = 250 |
627 else: | |
628 self.read_events() | |
629 | |
630 def read_events(self, bufsize=None): | |
631 events = self.watcher.read(bufsize) | |
632 if self.ui.debugflag: | |
6961
12163fb21fce
i18n: mark strings for translation in inotify extension
Martin Geisler <mg@daimi.au.dk>
parents:
6909
diff
changeset
|
633 self.ui.note(_('%s reading %d events\n') % |
6239 | 634 (self.event_time(), len(events))) |
635 for evt in events: | |
8953
e1d119f450f0
inotify: server: remove wpath method
Nicolas Dumazet <nicdumz.commits@gmail.com>
parents:
8952
diff
changeset
|
636 assert evt.fullpath.startswith(self.wprefix) |
9349
56fb15ad8fb1
inotify: server: use wprefix everywhere, introduce prefixlen
Nicolas Dumazet <nicdumz.commits@gmail.com>
parents:
9348
diff
changeset
|
637 wpath = evt.fullpath[self.prefixlen:] |
8953
e1d119f450f0
inotify: server: remove wpath method
Nicolas Dumazet <nicdumz.commits@gmail.com>
parents:
8952
diff
changeset
|
638 |
9117
a87bc6e2a907
inotify: server: explicitely ignore events in subdirs of .hg/ (issue1735)
Nicolas Dumazet <nicdumz.commits@gmail.com>
parents:
9116
diff
changeset
|
639 # paths have been normalized, wpath never ends with a '/' |
a87bc6e2a907
inotify: server: explicitely ignore events in subdirs of .hg/ (issue1735)
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parents:
9116
diff
changeset
|
640 |
a87bc6e2a907
inotify: server: explicitely ignore events in subdirs of .hg/ (issue1735)
Nicolas Dumazet <nicdumz.commits@gmail.com>
parents:
9116
diff
changeset
|
641 if wpath.startswith('.hg/') and evt.mask & inotify.IN_ISDIR: |
a87bc6e2a907
inotify: server: explicitely ignore events in subdirs of .hg/ (issue1735)
Nicolas Dumazet <nicdumz.commits@gmail.com>
parents:
9116
diff
changeset
|
642 # ignore subdirectories of .hg/ (merge, patches...) |
a87bc6e2a907
inotify: server: explicitely ignore events in subdirs of .hg/ (issue1735)
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parents:
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diff
changeset
|
643 continue |
a87bc6e2a907
inotify: server: explicitely ignore events in subdirs of .hg/ (issue1735)
Nicolas Dumazet <nicdumz.commits@gmail.com>
parents:
9116
diff
changeset
|
644 |
6239 | 645 if evt.mask & inotify.IN_UNMOUNT: |
646 self.process_unmount(wpath, evt) | |
647 elif evt.mask & (inotify.IN_MODIFY | inotify.IN_ATTRIB): | |
648 self.process_modify(wpath, evt) | |
649 elif evt.mask & (inotify.IN_DELETE | inotify.IN_DELETE_SELF | | |
650 inotify.IN_MOVED_FROM): | |
651 self.process_delete(wpath, evt) | |
652 elif evt.mask & (inotify.IN_CREATE | inotify.IN_MOVED_TO): | |
653 self.process_create(wpath, evt) | |
654 | |
8605
ed2d9bdbfad2
inotify: do not defer inotify events processing
Nicolas Dumazet <nicdumz.commits@gmail.com>
parents:
8604
diff
changeset
|
655 self.lastevent.clear() |
ed2d9bdbfad2
inotify: do not defer inotify events processing
Nicolas Dumazet <nicdumz.commits@gmail.com>
parents:
8604
diff
changeset
|
656 |
6239 | 657 def handle_timeout(self): |
658 if not self.registered: | |
659 if self.ui.debugflag: | |
6961
12163fb21fce
i18n: mark strings for translation in inotify extension
Martin Geisler <mg@daimi.au.dk>
parents:
6909
diff
changeset
|
660 self.ui.note(_('%s hooking back up with %d bytes readable\n') % |
6239 | 661 (self.event_time(), self.threshold.readable())) |
662 self.read_events(0) | |
8792
3e23b1d20837
inotify: refactor (un)register methods into pollable object
Nicolas Dumazet <nicdumz.commits@gmail.com>
parents:
8791
diff
changeset
|
663 self.register(timeout=None) |
6239 | 664 |
665 self.timeout = None | |
666 | |
667 def shutdown(self): | |
668 self.watcher.close() | |
669 | |
8555
3e09bc5fee12
inotify: introduce debuginotify, which lists which paths are under watch
Nicolas Dumazet <nicdumz.commits@gmail.com>
parents:
8554
diff
changeset
|
670 def debug(self): |
3e09bc5fee12
inotify: introduce debuginotify, which lists which paths are under watch
Nicolas Dumazet <nicdumz.commits@gmail.com>
parents:
8554
diff
changeset
|
671 """ |
3e09bc5fee12
inotify: introduce debuginotify, which lists which paths are under watch
Nicolas Dumazet <nicdumz.commits@gmail.com>
parents:
8554
diff
changeset
|
672 Returns a sorted list of relatives paths currently watched, |
3e09bc5fee12
inotify: introduce debuginotify, which lists which paths are under watch
Nicolas Dumazet <nicdumz.commits@gmail.com>
parents:
8554
diff
changeset
|
673 for debugging purposes. |
3e09bc5fee12
inotify: introduce debuginotify, which lists which paths are under watch
Nicolas Dumazet <nicdumz.commits@gmail.com>
parents:
8554
diff
changeset
|
674 """ |
9349
56fb15ad8fb1
inotify: server: use wprefix everywhere, introduce prefixlen
Nicolas Dumazet <nicdumz.commits@gmail.com>
parents:
9348
diff
changeset
|
675 return sorted(tuple[0][self.prefixlen:] for tuple in self.watcher) |
8555
3e09bc5fee12
inotify: introduce debuginotify, which lists which paths are under watch
Nicolas Dumazet <nicdumz.commits@gmail.com>
parents:
8554
diff
changeset
|
676 |
8610
8ef1f63e554c
inotify: server: use a common 'pollable' interface for server & repowatcher
Nicolas Dumazet <nicdumz.commits@gmail.com>
parents:
8609
diff
changeset
|
677 class server(pollable): |
8ef1f63e554c
inotify: server: use a common 'pollable' interface for server & repowatcher
Nicolas Dumazet <nicdumz.commits@gmail.com>
parents:
8609
diff
changeset
|
678 """ |
8ef1f63e554c
inotify: server: use a common 'pollable' interface for server & repowatcher
Nicolas Dumazet <nicdumz.commits@gmail.com>
parents:
8609
diff
changeset
|
679 Listens for client queries on unix socket inotify.sock |
8ef1f63e554c
inotify: server: use a common 'pollable' interface for server & repowatcher
Nicolas Dumazet <nicdumz.commits@gmail.com>
parents:
8609
diff
changeset
|
680 """ |
8335
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Nicolas Dumazet <nicdumz.commits@gmail.com>
parents:
8334
diff
changeset
|
681 def __init__(self, ui, repo, repowatcher, timeout): |
6239 | 682 self.ui = ui |
683 self.repo = repo | |
8335
713ec3f9c9de
inotify: Clarify the use of "watcher" name.
Nicolas Dumazet <nicdumz.commits@gmail.com>
parents:
8334
diff
changeset
|
684 self.repowatcher = repowatcher |
6239 | 685 self.sock = socket.socket(socket.AF_UNIX) |
686 self.sockpath = self.repo.join('inotify.sock') | |
6997
9c4e488f105e
inotify: workaround ENAMETOOLONG by using symlinks
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
6994
diff
changeset
|
687 self.realsockpath = None |
6239 | 688 try: |
689 self.sock.bind(self.sockpath) | |
690 except socket.error, err: | |
691 if err[0] == errno.EADDRINUSE: | |
6997
9c4e488f105e
inotify: workaround ENAMETOOLONG by using symlinks
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
6994
diff
changeset
|
692 raise AlreadyStartedException(_('could not start server: %s') |
6239 | 693 % err[1]) |
6997
9c4e488f105e
inotify: workaround ENAMETOOLONG by using symlinks
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
6994
diff
changeset
|
694 if err[0] == "AF_UNIX path too long": |
9c4e488f105e
inotify: workaround ENAMETOOLONG by using symlinks
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
6994
diff
changeset
|
695 tempdir = tempfile.mkdtemp(prefix="hg-inotify-") |
9c4e488f105e
inotify: workaround ENAMETOOLONG by using symlinks
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
6994
diff
changeset
|
696 self.realsockpath = os.path.join(tempdir, "inotify.sock") |
9c4e488f105e
inotify: workaround ENAMETOOLONG by using symlinks
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parents:
6994
diff
changeset
|
697 try: |
9c4e488f105e
inotify: workaround ENAMETOOLONG by using symlinks
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
6994
diff
changeset
|
698 self.sock.bind(self.realsockpath) |
9c4e488f105e
inotify: workaround ENAMETOOLONG by using symlinks
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
6994
diff
changeset
|
699 os.symlink(self.realsockpath, self.sockpath) |
9c4e488f105e
inotify: workaround ENAMETOOLONG by using symlinks
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parents:
6994
diff
changeset
|
700 except (OSError, socket.error), inst: |
9c4e488f105e
inotify: workaround ENAMETOOLONG by using symlinks
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
6994
diff
changeset
|
701 try: |
9c4e488f105e
inotify: workaround ENAMETOOLONG by using symlinks
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
6994
diff
changeset
|
702 os.unlink(self.realsockpath) |
9c4e488f105e
inotify: workaround ENAMETOOLONG by using symlinks
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
6994
diff
changeset
|
703 except: |
9c4e488f105e
inotify: workaround ENAMETOOLONG by using symlinks
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
6994
diff
changeset
|
704 pass |
9c4e488f105e
inotify: workaround ENAMETOOLONG by using symlinks
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
6994
diff
changeset
|
705 os.rmdir(tempdir) |
9c4e488f105e
inotify: workaround ENAMETOOLONG by using symlinks
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
6994
diff
changeset
|
706 if inst.errno == errno.EEXIST: |
9c4e488f105e
inotify: workaround ENAMETOOLONG by using symlinks
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
6994
diff
changeset
|
707 raise AlreadyStartedException(_('could not start server: %s') |
9c4e488f105e
inotify: workaround ENAMETOOLONG by using symlinks
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
6994
diff
changeset
|
708 % inst.strerror) |
9c4e488f105e
inotify: workaround ENAMETOOLONG by using symlinks
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
6994
diff
changeset
|
709 raise |
9c4e488f105e
inotify: workaround ENAMETOOLONG by using symlinks
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
6994
diff
changeset
|
710 else: |
9c4e488f105e
inotify: workaround ENAMETOOLONG by using symlinks
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
6994
diff
changeset
|
711 raise |
6239 | 712 self.sock.listen(5) |
713 self.fileno = self.sock.fileno | |
8792
3e23b1d20837
inotify: refactor (un)register methods into pollable object
Nicolas Dumazet <nicdumz.commits@gmail.com>
parents:
8791
diff
changeset
|
714 self.register(timeout=timeout) |
6239 | 715 |
716 def handle_timeout(self): | |
717 pass | |
718 | |
8554
47d7347484f5
inotify: put STAT-specific query answer generation part in its own method
Nicolas Dumazet <nicdumz.commits@gmail.com>
parents:
8553
diff
changeset
|
719 def answer_stat_query(self, cs): |
6239 | 720 names = cs.read().split('\0') |
6287
c86207d41512
Spacing cleanup
Thomas Arendsen Hein <thomas@intevation.de>
parents:
6239
diff
changeset
|
721 |
6239 | 722 states = names.pop() |
723 | |
724 self.ui.note(_('answering query for %r\n') % states) | |
725 | |
8335
713ec3f9c9de
inotify: Clarify the use of "watcher" name.
Nicolas Dumazet <nicdumz.commits@gmail.com>
parents:
8334
diff
changeset
|
726 if self.repowatcher.timeout: |
6239 | 727 # We got a query while a rescan is pending. Make sure we |
728 # rescan before responding, or we could give back a wrong | |
729 # answer. | |
8335
713ec3f9c9de
inotify: Clarify the use of "watcher" name.
Nicolas Dumazet <nicdumz.commits@gmail.com>
parents:
8334
diff
changeset
|
730 self.repowatcher.handle_timeout() |
6239 | 731 |
732 if not names: | |
733 def genresult(states, tree): | |
9115
b55d44719b47
inotify: server: new data structure to keep track of changes.
Nicolas Dumazet <nicdumz.commits@gmail.com>
parents:
8953
diff
changeset
|
734 for fn, state in tree.walk(states): |
6239 | 735 yield fn |
736 else: | |
737 def genresult(states, tree): | |
738 for fn in names: | |
9115
b55d44719b47
inotify: server: new data structure to keep track of changes.
Nicolas Dumazet <nicdumz.commits@gmail.com>
parents:
8953
diff
changeset
|
739 for f in tree.lookup(states, fn): |
b55d44719b47
inotify: server: new data structure to keep track of changes.
Nicolas Dumazet <nicdumz.commits@gmail.com>
parents:
8953
diff
changeset
|
740 yield f |
6239 | 741 |
8554
47d7347484f5
inotify: put STAT-specific query answer generation part in its own method
Nicolas Dumazet <nicdumz.commits@gmail.com>
parents:
8553
diff
changeset
|
742 return ['\0'.join(r) for r in [ |
8335
713ec3f9c9de
inotify: Clarify the use of "watcher" name.
Nicolas Dumazet <nicdumz.commits@gmail.com>
parents:
8334
diff
changeset
|
743 genresult('l', self.repowatcher.statustrees['l']), |
713ec3f9c9de
inotify: Clarify the use of "watcher" name.
Nicolas Dumazet <nicdumz.commits@gmail.com>
parents:
8334
diff
changeset
|
744 genresult('m', self.repowatcher.statustrees['m']), |
713ec3f9c9de
inotify: Clarify the use of "watcher" name.
Nicolas Dumazet <nicdumz.commits@gmail.com>
parents:
8334
diff
changeset
|
745 genresult('a', self.repowatcher.statustrees['a']), |
713ec3f9c9de
inotify: Clarify the use of "watcher" name.
Nicolas Dumazet <nicdumz.commits@gmail.com>
parents:
8334
diff
changeset
|
746 genresult('r', self.repowatcher.statustrees['r']), |
713ec3f9c9de
inotify: Clarify the use of "watcher" name.
Nicolas Dumazet <nicdumz.commits@gmail.com>
parents:
8334
diff
changeset
|
747 genresult('!', self.repowatcher.statustrees['!']), |
713ec3f9c9de
inotify: Clarify the use of "watcher" name.
Nicolas Dumazet <nicdumz.commits@gmail.com>
parents:
8334
diff
changeset
|
748 '?' in states |
713ec3f9c9de
inotify: Clarify the use of "watcher" name.
Nicolas Dumazet <nicdumz.commits@gmail.com>
parents:
8334
diff
changeset
|
749 and genresult('?', self.repowatcher.statustrees['?']) |
713ec3f9c9de
inotify: Clarify the use of "watcher" name.
Nicolas Dumazet <nicdumz.commits@gmail.com>
parents:
8334
diff
changeset
|
750 or [], |
6239 | 751 [], |
8335
713ec3f9c9de
inotify: Clarify the use of "watcher" name.
Nicolas Dumazet <nicdumz.commits@gmail.com>
parents:
8334
diff
changeset
|
752 'c' in states and genresult('n', self.repowatcher.tree) or [], |
6239 | 753 ]] |
754 | |
8555
3e09bc5fee12
inotify: introduce debuginotify, which lists which paths are under watch
Nicolas Dumazet <nicdumz.commits@gmail.com>
parents:
8554
diff
changeset
|
755 def answer_dbug_query(self): |
3e09bc5fee12
inotify: introduce debuginotify, which lists which paths are under watch
Nicolas Dumazet <nicdumz.commits@gmail.com>
parents:
8554
diff
changeset
|
756 return ['\0'.join(self.repowatcher.debug())] |
3e09bc5fee12
inotify: introduce debuginotify, which lists which paths are under watch
Nicolas Dumazet <nicdumz.commits@gmail.com>
parents:
8554
diff
changeset
|
757 |
8609
aeaa0bd9dc24
inotify: process all inotify events in one batch
Nicolas Dumazet <nicdumz.commits@gmail.com>
parents:
8608
diff
changeset
|
758 def handle_pollevents(self, events): |
aeaa0bd9dc24
inotify: process all inotify events in one batch
Nicolas Dumazet <nicdumz.commits@gmail.com>
parents:
8608
diff
changeset
|
759 for e in events: |
aeaa0bd9dc24
inotify: process all inotify events in one batch
Nicolas Dumazet <nicdumz.commits@gmail.com>
parents:
8608
diff
changeset
|
760 self.handle_pollevent() |
aeaa0bd9dc24
inotify: process all inotify events in one batch
Nicolas Dumazet <nicdumz.commits@gmail.com>
parents:
8608
diff
changeset
|
761 |
8608
228db070bfc4
inotify: rename handle_event to handle_pollevent to avoid confusion
Nicolas Dumazet <nicdumz.commits@gmail.com>
parents:
8607
diff
changeset
|
762 def handle_pollevent(self): |
8554
47d7347484f5
inotify: put STAT-specific query answer generation part in its own method
Nicolas Dumazet <nicdumz.commits@gmail.com>
parents:
8553
diff
changeset
|
763 sock, addr = self.sock.accept() |
47d7347484f5
inotify: put STAT-specific query answer generation part in its own method
Nicolas Dumazet <nicdumz.commits@gmail.com>
parents:
8553
diff
changeset
|
764 |
47d7347484f5
inotify: put STAT-specific query answer generation part in its own method
Nicolas Dumazet <nicdumz.commits@gmail.com>
parents:
8553
diff
changeset
|
765 cs = common.recvcs(sock) |
47d7347484f5
inotify: put STAT-specific query answer generation part in its own method
Nicolas Dumazet <nicdumz.commits@gmail.com>
parents:
8553
diff
changeset
|
766 version = ord(cs.read(1)) |
47d7347484f5
inotify: put STAT-specific query answer generation part in its own method
Nicolas Dumazet <nicdumz.commits@gmail.com>
parents:
8553
diff
changeset
|
767 |
47d7347484f5
inotify: put STAT-specific query answer generation part in its own method
Nicolas Dumazet <nicdumz.commits@gmail.com>
parents:
8553
diff
changeset
|
768 if version != common.version: |
47d7347484f5
inotify: put STAT-specific query answer generation part in its own method
Nicolas Dumazet <nicdumz.commits@gmail.com>
parents:
8553
diff
changeset
|
769 self.ui.warn(_('received query from incompatible client ' |
47d7347484f5
inotify: put STAT-specific query answer generation part in its own method
Nicolas Dumazet <nicdumz.commits@gmail.com>
parents:
8553
diff
changeset
|
770 'version %d\n') % version) |
8952
7c7a672e9db7
inotify: return version to client even when not matching
Simon Heimberg <simohe@besonet.ch>
parents:
8794
diff
changeset
|
771 try: |
7c7a672e9db7
inotify: return version to client even when not matching
Simon Heimberg <simohe@besonet.ch>
parents:
8794
diff
changeset
|
772 # try to send back our version to the client |
7c7a672e9db7
inotify: return version to client even when not matching
Simon Heimberg <simohe@besonet.ch>
parents:
8794
diff
changeset
|
773 # this way, the client too is informed of the mismatch |
7c7a672e9db7
inotify: return version to client even when not matching
Simon Heimberg <simohe@besonet.ch>
parents:
8794
diff
changeset
|
774 sock.sendall(chr(common.version)) |
7c7a672e9db7
inotify: return version to client even when not matching
Simon Heimberg <simohe@besonet.ch>
parents:
8794
diff
changeset
|
775 except: |
7c7a672e9db7
inotify: return version to client even when not matching
Simon Heimberg <simohe@besonet.ch>
parents:
8794
diff
changeset
|
776 pass |
8554
47d7347484f5
inotify: put STAT-specific query answer generation part in its own method
Nicolas Dumazet <nicdumz.commits@gmail.com>
parents:
8553
diff
changeset
|
777 return |
47d7347484f5
inotify: put STAT-specific query answer generation part in its own method
Nicolas Dumazet <nicdumz.commits@gmail.com>
parents:
8553
diff
changeset
|
778 |
47d7347484f5
inotify: put STAT-specific query answer generation part in its own method
Nicolas Dumazet <nicdumz.commits@gmail.com>
parents:
8553
diff
changeset
|
779 type = cs.read(4) |
47d7347484f5
inotify: put STAT-specific query answer generation part in its own method
Nicolas Dumazet <nicdumz.commits@gmail.com>
parents:
8553
diff
changeset
|
780 |
47d7347484f5
inotify: put STAT-specific query answer generation part in its own method
Nicolas Dumazet <nicdumz.commits@gmail.com>
parents:
8553
diff
changeset
|
781 if type == 'STAT': |
47d7347484f5
inotify: put STAT-specific query answer generation part in its own method
Nicolas Dumazet <nicdumz.commits@gmail.com>
parents:
8553
diff
changeset
|
782 results = self.answer_stat_query(cs) |
8555
3e09bc5fee12
inotify: introduce debuginotify, which lists which paths are under watch
Nicolas Dumazet <nicdumz.commits@gmail.com>
parents:
8554
diff
changeset
|
783 elif type == 'DBUG': |
3e09bc5fee12
inotify: introduce debuginotify, which lists which paths are under watch
Nicolas Dumazet <nicdumz.commits@gmail.com>
parents:
8554
diff
changeset
|
784 results = self.answer_dbug_query() |
8554
47d7347484f5
inotify: put STAT-specific query answer generation part in its own method
Nicolas Dumazet <nicdumz.commits@gmail.com>
parents:
8553
diff
changeset
|
785 else: |
47d7347484f5
inotify: put STAT-specific query answer generation part in its own method
Nicolas Dumazet <nicdumz.commits@gmail.com>
parents:
8553
diff
changeset
|
786 self.ui.warn(_('unrecognized query type: %s\n') % type) |
47d7347484f5
inotify: put STAT-specific query answer generation part in its own method
Nicolas Dumazet <nicdumz.commits@gmail.com>
parents:
8553
diff
changeset
|
787 return |
47d7347484f5
inotify: put STAT-specific query answer generation part in its own method
Nicolas Dumazet <nicdumz.commits@gmail.com>
parents:
8553
diff
changeset
|
788 |
6239 | 789 try: |
790 try: | |
8386
4aad982111b6
inotify: Abstract the layer format and sizes to a inotify.common dictionary
Nicolas Dumazet <nicdumz.commits@gmail.com>
parents:
8385
diff
changeset
|
791 v = chr(common.version) |
4aad982111b6
inotify: Abstract the layer format and sizes to a inotify.common dictionary
Nicolas Dumazet <nicdumz.commits@gmail.com>
parents:
8385
diff
changeset
|
792 |
8553
e387ecd7a6ed
inotify: change protocol so that different query types can be supported.
Nicolas Dumazet <nicdumz.commits@gmail.com>
parents:
8386
diff
changeset
|
793 sock.sendall(v + type + struct.pack(common.resphdrfmts[type], |
e387ecd7a6ed
inotify: change protocol so that different query types can be supported.
Nicolas Dumazet <nicdumz.commits@gmail.com>
parents:
8386
diff
changeset
|
794 *map(len, results))) |
6239 | 795 sock.sendall(''.join(results)) |
796 finally: | |
797 sock.shutdown(socket.SHUT_WR) | |
798 except socket.error, err: | |
799 if err[0] != errno.EPIPE: | |
800 raise | |
801 | |
802 def shutdown(self): | |
803 self.sock.close() | |
804 try: | |
805 os.unlink(self.sockpath) | |
6997
9c4e488f105e
inotify: workaround ENAMETOOLONG by using symlinks
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
6994
diff
changeset
|
806 if self.realsockpath: |
9c4e488f105e
inotify: workaround ENAMETOOLONG by using symlinks
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
6994
diff
changeset
|
807 os.unlink(self.realsockpath) |
9c4e488f105e
inotify: workaround ENAMETOOLONG by using symlinks
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
6994
diff
changeset
|
808 os.rmdir(os.path.dirname(self.realsockpath)) |
6239 | 809 except OSError, err: |
810 if err.errno != errno.ENOENT: | |
811 raise | |
812 | |
8385
1536501ade62
inotify: Coding Style: name classes in lowercase.
Nicolas Dumazet <nicdumz.commits@gmail.com>
parents:
8384
diff
changeset
|
813 class master(object): |
6239 | 814 def __init__(self, ui, repo, timeout=None): |
815 self.ui = ui | |
816 self.repo = repo | |
8792
3e23b1d20837
inotify: refactor (un)register methods into pollable object
Nicolas Dumazet <nicdumz.commits@gmail.com>
parents:
8791
diff
changeset
|
817 self.repowatcher = repowatcher(ui, repo) |
8385
1536501ade62
inotify: Coding Style: name classes in lowercase.
Nicolas Dumazet <nicdumz.commits@gmail.com>
parents:
8384
diff
changeset
|
818 self.server = server(ui, repo, self.repowatcher, timeout) |
6239 | 819 |
820 def shutdown(self): | |
8792
3e23b1d20837
inotify: refactor (un)register methods into pollable object
Nicolas Dumazet <nicdumz.commits@gmail.com>
parents:
8791
diff
changeset
|
821 for obj in pollable.instances.itervalues(): |
6239 | 822 obj.shutdown() |
823 | |
824 def run(self): | |
8335
713ec3f9c9de
inotify: Clarify the use of "watcher" name.
Nicolas Dumazet <nicdumz.commits@gmail.com>
parents:
8334
diff
changeset
|
825 self.repowatcher.setup() |
6239 | 826 self.ui.note(_('finished setup\n')) |
827 if os.getenv('TIME_STARTUP'): | |
828 sys.exit(0) | |
8793
9d0c521bce0e
inotify: put the "while True: poll()" loop in pollable class
Nicolas Dumazet <nicdumz.commits@gmail.com>
parents:
8792
diff
changeset
|
829 pollable.run() |
6239 | 830 |
831 def start(ui, repo): | |
7451
fca9947652ce
inotify: close most file descriptors when autostarting
Brendan Cully <brendan@kublai.com>
parents:
7420
diff
changeset
|
832 def closefds(ignore): |
fca9947652ce
inotify: close most file descriptors when autostarting
Brendan Cully <brendan@kublai.com>
parents:
7420
diff
changeset
|
833 # (from python bug #1177468) |
fca9947652ce
inotify: close most file descriptors when autostarting
Brendan Cully <brendan@kublai.com>
parents:
7420
diff
changeset
|
834 # close all inherited file descriptors |
fca9947652ce
inotify: close most file descriptors when autostarting
Brendan Cully <brendan@kublai.com>
parents:
7420
diff
changeset
|
835 # Python 2.4.1 and later use /dev/urandom to seed the random module's RNG |
fca9947652ce
inotify: close most file descriptors when autostarting
Brendan Cully <brendan@kublai.com>
parents:
7420
diff
changeset
|
836 # a file descriptor is kept internally as os._urandomfd (created on demand |
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837 # the first time os.urandom() is called), and should not be closed |
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838 try: |
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839 os.urandom(4) |
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840 urandom_fd = getattr(os, '_urandomfd', None) |
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841 except AttributeError: |
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842 urandom_fd = None |
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843 ignore.append(urandom_fd) |
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844 for fd in range(3, 256): |
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845 if fd in ignore: |
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846 continue |
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847 try: |
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848 os.close(fd) |
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849 except OSError: |
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850 pass |
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851 |
8385
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852 m = master(ui, repo) |
6239 | 853 sys.stdout.flush() |
854 sys.stderr.flush() | |
855 | |
856 pid = os.fork() | |
857 if pid: | |
858 return pid | |
859 | |
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860 closefds(pollable.instances.keys()) |
6239 | 861 os.setsid() |
862 | |
863 fd = os.open('/dev/null', os.O_RDONLY) | |
864 os.dup2(fd, 0) | |
865 if fd > 0: | |
866 os.close(fd) | |
867 | |
868 fd = os.open(ui.config('inotify', 'log', '/dev/null'), | |
869 os.O_RDWR | os.O_CREAT | os.O_TRUNC) | |
870 os.dup2(fd, 1) | |
871 os.dup2(fd, 2) | |
872 if fd > 2: | |
873 os.close(fd) | |
874 | |
875 try: | |
876 m.run() | |
877 finally: | |
878 m.shutdown() | |
879 os._exit(0) |