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1 | # chgserver.py - command server extension for cHg |
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1 | # chgserver.py - command server extension for cHg | |
2 | # |
|
2 | # | |
3 | # Copyright 2011 Yuya Nishihara <yuya@tcha.org> |
|
3 | # Copyright 2011 Yuya Nishihara <yuya@tcha.org> | |
4 | # |
|
4 | # | |
5 | # This software may be used and distributed according to the terms of the |
|
5 | # This software may be used and distributed according to the terms of the | |
6 | # GNU General Public License version 2 or any later version. |
|
6 | # GNU General Public License version 2 or any later version. | |
7 |
|
7 | |||
8 | """command server extension for cHg (EXPERIMENTAL) |
|
8 | """command server extension for cHg (EXPERIMENTAL) | |
9 |
|
9 | |||
10 | 'S' channel (read/write) |
|
10 | 'S' channel (read/write) | |
11 | propagate ui.system() request to client |
|
11 | propagate ui.system() request to client | |
12 |
|
12 | |||
13 | 'attachio' command |
|
13 | 'attachio' command | |
14 | attach client's stdio passed by sendmsg() |
|
14 | attach client's stdio passed by sendmsg() | |
15 |
|
15 | |||
16 | 'chdir' command |
|
16 | 'chdir' command | |
17 | change current directory |
|
17 | change current directory | |
18 |
|
18 | |||
19 | 'getpager' command |
|
19 | 'getpager' command | |
20 | checks if pager is enabled and which pager should be executed |
|
20 | checks if pager is enabled and which pager should be executed | |
21 |
|
21 | |||
22 | 'setenv' command |
|
22 | 'setenv' command | |
23 | replace os.environ completely |
|
23 | replace os.environ completely | |
24 |
|
24 | |||
25 | 'setumask' command |
|
25 | 'setumask' command | |
26 | set umask |
|
26 | set umask | |
27 |
|
27 | |||
28 | 'validate' command |
|
28 | 'validate' command | |
29 | reload the config and check if the server is up to date |
|
29 | reload the config and check if the server is up to date | |
30 |
|
30 | |||
31 | Config |
|
31 | Config | |
32 | ------ |
|
32 | ------ | |
33 |
|
33 | |||
34 | :: |
|
34 | :: | |
35 |
|
35 | |||
36 | [chgserver] |
|
36 | [chgserver] | |
37 | idletimeout = 3600 # seconds, after which an idle server will exit |
|
37 | idletimeout = 3600 # seconds, after which an idle server will exit | |
38 | skiphash = False # whether to skip config or env change checks |
|
38 | skiphash = False # whether to skip config or env change checks | |
39 | """ |
|
39 | """ | |
40 |
|
40 | |||
41 | from __future__ import absolute_import |
|
41 | from __future__ import absolute_import | |
42 |
|
42 | |||
43 | import SocketServer |
|
43 | import SocketServer | |
44 | import errno |
|
44 | import errno | |
45 | import gc |
|
45 | import gc | |
46 | import inspect |
|
46 | import inspect | |
47 | import os |
|
47 | import os | |
48 | import re |
|
48 | import re | |
49 | import struct |
|
49 | import struct | |
50 | import sys |
|
50 | import sys | |
51 | import threading |
|
51 | import threading | |
52 | import time |
|
52 | import time | |
53 | import traceback |
|
53 | import traceback | |
54 |
|
54 | |||
55 | from mercurial.i18n import _ |
|
55 | from mercurial.i18n import _ | |
56 |
|
56 | |||
57 | from mercurial import ( |
|
57 | from mercurial import ( | |
58 | cmdutil, |
|
58 | cmdutil, | |
59 | commands, |
|
59 | commands, | |
60 | commandserver, |
|
60 | commandserver, | |
61 | dispatch, |
|
61 | dispatch, | |
62 | error, |
|
62 | error, | |
63 | extensions, |
|
63 | extensions, | |
64 | osutil, |
|
64 | osutil, | |
65 | util, |
|
65 | util, | |
66 | ) |
|
66 | ) | |
67 |
|
67 | |||
68 | # Note for extension authors: ONLY specify testedwith = 'internal' for |
|
68 | # Note for extension authors: ONLY specify testedwith = 'internal' for | |
69 | # extensions which SHIP WITH MERCURIAL. Non-mainline extensions should |
|
69 | # extensions which SHIP WITH MERCURIAL. Non-mainline extensions should | |
70 | # be specifying the version(s) of Mercurial they are tested with, or |
|
70 | # be specifying the version(s) of Mercurial they are tested with, or | |
71 | # leave the attribute unspecified. |
|
71 | # leave the attribute unspecified. | |
72 | testedwith = 'internal' |
|
72 | testedwith = 'internal' | |
73 |
|
73 | |||
74 | _log = commandserver.log |
|
74 | _log = commandserver.log | |
75 |
|
75 | |||
76 | def _hashlist(items): |
|
76 | def _hashlist(items): | |
77 | """return sha1 hexdigest for a list""" |
|
77 | """return sha1 hexdigest for a list""" | |
78 | return util.sha1(str(items)).hexdigest() |
|
78 | return util.sha1(str(items)).hexdigest() | |
79 |
|
79 | |||
80 | # sensitive config sections affecting confighash |
|
80 | # sensitive config sections affecting confighash | |
81 | _configsections = [ |
|
81 | _configsections = [ | |
82 | 'extdiff', # uisetup will register new commands |
|
82 | 'extdiff', # uisetup will register new commands | |
83 | 'extensions', |
|
83 | 'extensions', | |
84 | ] |
|
84 | ] | |
85 |
|
85 | |||
86 | # sensitive environment variables affecting confighash |
|
86 | # sensitive environment variables affecting confighash | |
87 | _envre = re.compile(r'''\A(?: |
|
87 | _envre = re.compile(r'''\A(?: | |
88 | CHGHG |
|
88 | CHGHG | |
89 | |HG.* |
|
89 | |HG.* | |
90 | |LANG(?:UAGE)? |
|
90 | |LANG(?:UAGE)? | |
91 | |LC_.* |
|
91 | |LC_.* | |
92 | |LD_.* |
|
92 | |LD_.* | |
93 | |PATH |
|
93 | |PATH | |
94 | |PYTHON.* |
|
94 | |PYTHON.* | |
95 | |TERM(?:INFO)? |
|
95 | |TERM(?:INFO)? | |
96 | |TZ |
|
96 | |TZ | |
97 | )\Z''', re.X) |
|
97 | )\Z''', re.X) | |
98 |
|
98 | |||
99 | def _confighash(ui): |
|
99 | def _confighash(ui): | |
100 | """return a quick hash for detecting config/env changes |
|
100 | """return a quick hash for detecting config/env changes | |
101 |
|
101 | |||
102 | confighash is the hash of sensitive config items and environment variables. |
|
102 | confighash is the hash of sensitive config items and environment variables. | |
103 |
|
103 | |||
104 | for chgserver, it is designed that once confighash changes, the server is |
|
104 | for chgserver, it is designed that once confighash changes, the server is | |
105 | not qualified to serve its client and should redirect the client to a new |
|
105 | not qualified to serve its client and should redirect the client to a new | |
106 | server. different from mtimehash, confighash change will not mark the |
|
106 | server. different from mtimehash, confighash change will not mark the | |
107 | server outdated and exit since the user can have different configs at the |
|
107 | server outdated and exit since the user can have different configs at the | |
108 | same time. |
|
108 | same time. | |
109 | """ |
|
109 | """ | |
110 | sectionitems = [] |
|
110 | sectionitems = [] | |
111 | for section in _configsections: |
|
111 | for section in _configsections: | |
112 | sectionitems.append(ui.configitems(section)) |
|
112 | sectionitems.append(ui.configitems(section)) | |
113 | sectionhash = _hashlist(sectionitems) |
|
113 | sectionhash = _hashlist(sectionitems) | |
114 | envitems = [(k, v) for k, v in os.environ.iteritems() if _envre.match(k)] |
|
114 | envitems = [(k, v) for k, v in os.environ.iteritems() if _envre.match(k)] | |
115 | envhash = _hashlist(sorted(envitems)) |
|
115 | envhash = _hashlist(sorted(envitems)) | |
116 | return sectionhash[:6] + envhash[:6] |
|
116 | return sectionhash[:6] + envhash[:6] | |
117 |
|
117 | |||
118 | def _getmtimepaths(ui): |
|
118 | def _getmtimepaths(ui): | |
119 | """get a list of paths that should be checked to detect change |
|
119 | """get a list of paths that should be checked to detect change | |
120 |
|
120 | |||
121 | The list will include: |
|
121 | The list will include: | |
122 | - extensions (will not cover all files for complex extensions) |
|
122 | - extensions (will not cover all files for complex extensions) | |
123 | - mercurial/__version__.py |
|
123 | - mercurial/__version__.py | |
124 | - python binary |
|
124 | - python binary | |
125 | """ |
|
125 | """ | |
126 | modules = [m for n, m in extensions.extensions(ui)] |
|
126 | modules = [m for n, m in extensions.extensions(ui)] | |
127 | try: |
|
127 | try: | |
128 | from mercurial import __version__ |
|
128 | from mercurial import __version__ | |
129 | modules.append(__version__) |
|
129 | modules.append(__version__) | |
130 | except ImportError: |
|
130 | except ImportError: | |
131 | pass |
|
131 | pass | |
132 | files = [sys.executable] |
|
132 | files = [sys.executable] | |
133 | for m in modules: |
|
133 | for m in modules: | |
134 | try: |
|
134 | try: | |
135 | files.append(inspect.getabsfile(m)) |
|
135 | files.append(inspect.getabsfile(m)) | |
136 | except TypeError: |
|
136 | except TypeError: | |
137 | pass |
|
137 | pass | |
138 | return sorted(set(files)) |
|
138 | return sorted(set(files)) | |
139 |
|
139 | |||
140 | def _mtimehash(paths): |
|
140 | def _mtimehash(paths): | |
141 | """return a quick hash for detecting file changes |
|
141 | """return a quick hash for detecting file changes | |
142 |
|
142 | |||
143 | mtimehash calls stat on given paths and calculate a hash based on size and |
|
143 | mtimehash calls stat on given paths and calculate a hash based on size and | |
144 | mtime of each file. mtimehash does not read file content because reading is |
|
144 | mtime of each file. mtimehash does not read file content because reading is | |
145 | expensive. therefore it's not 100% reliable for detecting content changes. |
|
145 | expensive. therefore it's not 100% reliable for detecting content changes. | |
146 | it's possible to return different hashes for same file contents. |
|
146 | it's possible to return different hashes for same file contents. | |
147 | it's also possible to return a same hash for different file contents for |
|
147 | it's also possible to return a same hash for different file contents for | |
148 | some carefully crafted situation. |
|
148 | some carefully crafted situation. | |
149 |
|
149 | |||
150 | for chgserver, it is designed that once mtimehash changes, the server is |
|
150 | for chgserver, it is designed that once mtimehash changes, the server is | |
151 | considered outdated immediately and should no longer provide service. |
|
151 | considered outdated immediately and should no longer provide service. | |
152 | """ |
|
152 | """ | |
153 | def trystat(path): |
|
153 | def trystat(path): | |
154 | try: |
|
154 | try: | |
155 | st = os.stat(path) |
|
155 | st = os.stat(path) | |
156 | return (st.st_mtime, st.st_size) |
|
156 | return (st.st_mtime, st.st_size) | |
157 | except OSError: |
|
157 | except OSError: | |
158 | # could be ENOENT, EPERM etc. not fatal in any case |
|
158 | # could be ENOENT, EPERM etc. not fatal in any case | |
159 | pass |
|
159 | pass | |
160 | return _hashlist(map(trystat, paths))[:12] |
|
160 | return _hashlist(map(trystat, paths))[:12] | |
161 |
|
161 | |||
162 | class hashstate(object): |
|
162 | class hashstate(object): | |
163 | """a structure storing confighash, mtimehash, paths used for mtimehash""" |
|
163 | """a structure storing confighash, mtimehash, paths used for mtimehash""" | |
164 | def __init__(self, confighash, mtimehash, mtimepaths): |
|
164 | def __init__(self, confighash, mtimehash, mtimepaths): | |
165 | self.confighash = confighash |
|
165 | self.confighash = confighash | |
166 | self.mtimehash = mtimehash |
|
166 | self.mtimehash = mtimehash | |
167 | self.mtimepaths = mtimepaths |
|
167 | self.mtimepaths = mtimepaths | |
168 |
|
168 | |||
169 | @staticmethod |
|
169 | @staticmethod | |
170 | def fromui(ui, mtimepaths=None): |
|
170 | def fromui(ui, mtimepaths=None): | |
171 | if mtimepaths is None: |
|
171 | if mtimepaths is None: | |
172 | mtimepaths = _getmtimepaths(ui) |
|
172 | mtimepaths = _getmtimepaths(ui) | |
173 | confighash = _confighash(ui) |
|
173 | confighash = _confighash(ui) | |
174 | mtimehash = _mtimehash(mtimepaths) |
|
174 | mtimehash = _mtimehash(mtimepaths) | |
175 | _log('confighash = %s mtimehash = %s\n' % (confighash, mtimehash)) |
|
175 | _log('confighash = %s mtimehash = %s\n' % (confighash, mtimehash)) | |
176 | return hashstate(confighash, mtimehash, mtimepaths) |
|
176 | return hashstate(confighash, mtimehash, mtimepaths) | |
177 |
|
177 | |||
178 | # copied from hgext/pager.py:uisetup() |
|
178 | # copied from hgext/pager.py:uisetup() | |
179 | def _setuppagercmd(ui, options, cmd): |
|
179 | def _setuppagercmd(ui, options, cmd): | |
180 | if not ui.formatted(): |
|
180 | if not ui.formatted(): | |
181 | return |
|
181 | return | |
182 |
|
182 | |||
183 | p = ui.config("pager", "pager", os.environ.get("PAGER")) |
|
183 | p = ui.config("pager", "pager", os.environ.get("PAGER")) | |
184 | usepager = False |
|
184 | usepager = False | |
185 | always = util.parsebool(options['pager']) |
|
185 | always = util.parsebool(options['pager']) | |
186 | auto = options['pager'] == 'auto' |
|
186 | auto = options['pager'] == 'auto' | |
187 |
|
187 | |||
188 | if not p: |
|
188 | if not p: | |
189 | pass |
|
189 | pass | |
190 | elif always: |
|
190 | elif always: | |
191 | usepager = True |
|
191 | usepager = True | |
192 | elif not auto: |
|
192 | elif not auto: | |
193 | usepager = False |
|
193 | usepager = False | |
194 | else: |
|
194 | else: | |
195 | attended = ['annotate', 'cat', 'diff', 'export', 'glog', 'log', 'qdiff'] |
|
195 | attended = ['annotate', 'cat', 'diff', 'export', 'glog', 'log', 'qdiff'] | |
196 | attend = ui.configlist('pager', 'attend', attended) |
|
196 | attend = ui.configlist('pager', 'attend', attended) | |
197 | ignore = ui.configlist('pager', 'ignore') |
|
197 | ignore = ui.configlist('pager', 'ignore') | |
198 | cmds, _ = cmdutil.findcmd(cmd, commands.table) |
|
198 | cmds, _ = cmdutil.findcmd(cmd, commands.table) | |
199 |
|
199 | |||
200 | for cmd in cmds: |
|
200 | for cmd in cmds: | |
201 | var = 'attend-%s' % cmd |
|
201 | var = 'attend-%s' % cmd | |
202 | if ui.config('pager', var): |
|
202 | if ui.config('pager', var): | |
203 | usepager = ui.configbool('pager', var) |
|
203 | usepager = ui.configbool('pager', var) | |
204 | break |
|
204 | break | |
205 | if (cmd in attend or |
|
205 | if (cmd in attend or | |
206 | (cmd not in ignore and not attend)): |
|
206 | (cmd not in ignore and not attend)): | |
207 | usepager = True |
|
207 | usepager = True | |
208 | break |
|
208 | break | |
209 |
|
209 | |||
210 | if usepager: |
|
210 | if usepager: | |
211 | ui.setconfig('ui', 'formatted', ui.formatted(), 'pager') |
|
211 | ui.setconfig('ui', 'formatted', ui.formatted(), 'pager') | |
212 | ui.setconfig('ui', 'interactive', False, 'pager') |
|
212 | ui.setconfig('ui', 'interactive', False, 'pager') | |
213 | return p |
|
213 | return p | |
214 |
|
214 | |||
215 | _envvarre = re.compile(r'\$[a-zA-Z_]+') |
|
215 | _envvarre = re.compile(r'\$[a-zA-Z_]+') | |
216 |
|
216 | |||
217 | def _clearenvaliases(cmdtable): |
|
217 | def _clearenvaliases(cmdtable): | |
218 | """Remove stale command aliases referencing env vars; variable expansion |
|
218 | """Remove stale command aliases referencing env vars; variable expansion | |
219 | is done at dispatch.addaliases()""" |
|
219 | is done at dispatch.addaliases()""" | |
220 | for name, tab in cmdtable.items(): |
|
220 | for name, tab in cmdtable.items(): | |
221 | cmddef = tab[0] |
|
221 | cmddef = tab[0] | |
222 | if (isinstance(cmddef, dispatch.cmdalias) and |
|
222 | if (isinstance(cmddef, dispatch.cmdalias) and | |
223 | not cmddef.definition.startswith('!') and # shell alias |
|
223 | not cmddef.definition.startswith('!') and # shell alias | |
224 | _envvarre.search(cmddef.definition)): |
|
224 | _envvarre.search(cmddef.definition)): | |
225 | del cmdtable[name] |
|
225 | del cmdtable[name] | |
226 |
|
226 | |||
227 | def _newchgui(srcui, csystem): |
|
227 | def _newchgui(srcui, csystem): | |
228 | class chgui(srcui.__class__): |
|
228 | class chgui(srcui.__class__): | |
229 | def __init__(self, src=None): |
|
229 | def __init__(self, src=None): | |
230 | super(chgui, self).__init__(src) |
|
230 | super(chgui, self).__init__(src) | |
231 | if src: |
|
231 | if src: | |
232 | self._csystem = getattr(src, '_csystem', csystem) |
|
232 | self._csystem = getattr(src, '_csystem', csystem) | |
233 | else: |
|
233 | else: | |
234 | self._csystem = csystem |
|
234 | self._csystem = csystem | |
235 |
|
235 | |||
236 | def system(self, cmd, environ=None, cwd=None, onerr=None, |
|
236 | def system(self, cmd, environ=None, cwd=None, onerr=None, | |
237 | errprefix=None): |
|
237 | errprefix=None): | |
238 | # fallback to the original system method if the output needs to be |
|
238 | # fallback to the original system method if the output needs to be | |
239 | # captured (to self._buffers), or the output stream is not stdout |
|
239 | # captured (to self._buffers), or the output stream is not stdout | |
240 | # (e.g. stderr, cStringIO), because the chg client is not aware of |
|
240 | # (e.g. stderr, cStringIO), because the chg client is not aware of | |
241 | # these situations and will behave differently (write to stdout). |
|
241 | # these situations and will behave differently (write to stdout). | |
242 | if (any(s[1] for s in self._bufferstates) |
|
242 | if (any(s[1] for s in self._bufferstates) | |
243 | or not util.safehasattr(self.fout, 'fileno') |
|
243 | or not util.safehasattr(self.fout, 'fileno') | |
244 | or self.fout.fileno() != sys.stdout.fileno()): |
|
244 | or self.fout.fileno() != sys.stdout.fileno()): | |
245 | return super(chgui, self).system(cmd, environ, cwd, onerr, |
|
245 | return super(chgui, self).system(cmd, environ, cwd, onerr, | |
246 | errprefix) |
|
246 | errprefix) | |
247 | # copied from mercurial/util.py:system() |
|
247 | # copied from mercurial/util.py:system() | |
248 | self.flush() |
|
248 | self.flush() | |
249 | def py2shell(val): |
|
249 | def py2shell(val): | |
250 | if val is None or val is False: |
|
250 | if val is None or val is False: | |
251 | return '0' |
|
251 | return '0' | |
252 | if val is True: |
|
252 | if val is True: | |
253 | return '1' |
|
253 | return '1' | |
254 | return str(val) |
|
254 | return str(val) | |
255 | env = os.environ.copy() |
|
255 | env = os.environ.copy() | |
256 | if environ: |
|
256 | if environ: | |
257 | env.update((k, py2shell(v)) for k, v in environ.iteritems()) |
|
257 | env.update((k, py2shell(v)) for k, v in environ.iteritems()) | |
258 | env['HG'] = util.hgexecutable() |
|
258 | env['HG'] = util.hgexecutable() | |
259 | rc = self._csystem(cmd, env, cwd) |
|
259 | rc = self._csystem(cmd, env, cwd) | |
260 | if rc and onerr: |
|
260 | if rc and onerr: | |
261 | errmsg = '%s %s' % (os.path.basename(cmd.split(None, 1)[0]), |
|
261 | errmsg = '%s %s' % (os.path.basename(cmd.split(None, 1)[0]), | |
262 | util.explainexit(rc)[0]) |
|
262 | util.explainexit(rc)[0]) | |
263 | if errprefix: |
|
263 | if errprefix: | |
264 | errmsg = '%s: %s' % (errprefix, errmsg) |
|
264 | errmsg = '%s: %s' % (errprefix, errmsg) | |
265 | raise onerr(errmsg) |
|
265 | raise onerr(errmsg) | |
266 | return rc |
|
266 | return rc | |
267 |
|
267 | |||
268 | return chgui(srcui) |
|
268 | return chgui(srcui) | |
269 |
|
269 | |||
270 |
def _ |
|
270 | def _loadnewui(srcui, args=None): | |
271 | if not args: |
|
271 | if not args: | |
272 | args = [] |
|
272 | args = [] | |
273 |
|
273 | |||
274 | newui = srcui.__class__() |
|
274 | newui = srcui.__class__() | |
275 | for a in ['fin', 'fout', 'ferr', 'environ']: |
|
275 | for a in ['fin', 'fout', 'ferr', 'environ']: | |
276 | setattr(newui, a, getattr(srcui, a)) |
|
276 | setattr(newui, a, getattr(srcui, a)) | |
277 | if util.safehasattr(srcui, '_csystem'): |
|
277 | if util.safehasattr(srcui, '_csystem'): | |
278 | newui._csystem = srcui._csystem |
|
278 | newui._csystem = srcui._csystem | |
279 |
|
279 | |||
280 | # load wd and repo config, copied from dispatch.py |
|
|||
281 | cwds = dispatch._earlygetopt(['--cwd'], args) |
|
|||
282 | cwd = cwds and os.path.realpath(cwds[-1]) or None |
|
|||
283 | rpath = dispatch._earlygetopt(["-R", "--repository", "--repo"], args) |
|
|||
284 | path, newui = dispatch._getlocal(newui, rpath, wd=cwd) |
|
|||
285 |
|
||||
286 | # internal config: extensions.chgserver |
|
280 | # internal config: extensions.chgserver | |
287 | # copy it. it can only be overrided from command line. |
|
|||
288 | newui.setconfig('extensions', 'chgserver', |
|
281 | newui.setconfig('extensions', 'chgserver', | |
289 | srcui.config('extensions', 'chgserver'), '--config') |
|
282 | srcui.config('extensions', 'chgserver'), '--config') | |
290 |
|
283 | |||
291 | # command line args |
|
284 | # command line args | |
292 | dispatch._parseconfig(newui, dispatch._earlygetopt(['--config'], args)) |
|
285 | dispatch._parseconfig(newui, dispatch._earlygetopt(['--config'], args)) | |
293 |
|
286 | |||
294 | # stolen from tortoisehg.util.copydynamicconfig() |
|
287 | # stolen from tortoisehg.util.copydynamicconfig() | |
295 | for section, name, value in srcui.walkconfig(): |
|
288 | for section, name, value in srcui.walkconfig(): | |
296 | source = srcui.configsource(section, name) |
|
289 | source = srcui.configsource(section, name) | |
297 | if ':' in source or source == '--config': |
|
290 | if ':' in source or source == '--config': | |
298 | # path:line or command line |
|
291 | # path:line or command line | |
299 | continue |
|
292 | continue | |
300 | if source == 'none': |
|
293 | if source == 'none': | |
301 | # ui.configsource returns 'none' by default |
|
294 | # ui.configsource returns 'none' by default | |
302 | source = '' |
|
295 | source = '' | |
303 | newui.setconfig(section, name, value, source) |
|
296 | newui.setconfig(section, name, value, source) | |
304 | return newui |
|
297 | ||
|
298 | # load wd and repo config, copied from dispatch.py | |||
|
299 | args = args[:] | |||
|
300 | cwds = dispatch._earlygetopt(['--cwd'], args) | |||
|
301 | cwd = cwds and os.path.realpath(cwds[-1]) or None | |||
|
302 | rpath = dispatch._earlygetopt(["-R", "--repository", "--repo"], args) | |||
|
303 | path, newlui = dispatch._getlocal(newui, rpath, wd=cwd) | |||
|
304 | ||||
|
305 | return (newui, newlui) | |||
305 |
|
306 | |||
306 | class channeledsystem(object): |
|
307 | class channeledsystem(object): | |
307 | """Propagate ui.system() request in the following format: |
|
308 | """Propagate ui.system() request in the following format: | |
308 |
|
309 | |||
309 | payload length (unsigned int), |
|
310 | payload length (unsigned int), | |
310 | cmd, '\0', |
|
311 | cmd, '\0', | |
311 | cwd, '\0', |
|
312 | cwd, '\0', | |
312 | envkey, '=', val, '\0', |
|
313 | envkey, '=', val, '\0', | |
313 | ... |
|
314 | ... | |
314 | envkey, '=', val |
|
315 | envkey, '=', val | |
315 |
|
316 | |||
316 | and waits: |
|
317 | and waits: | |
317 |
|
318 | |||
318 | exitcode length (unsigned int), |
|
319 | exitcode length (unsigned int), | |
319 | exitcode (int) |
|
320 | exitcode (int) | |
320 | """ |
|
321 | """ | |
321 | def __init__(self, in_, out, channel): |
|
322 | def __init__(self, in_, out, channel): | |
322 | self.in_ = in_ |
|
323 | self.in_ = in_ | |
323 | self.out = out |
|
324 | self.out = out | |
324 | self.channel = channel |
|
325 | self.channel = channel | |
325 |
|
326 | |||
326 | def __call__(self, cmd, environ, cwd): |
|
327 | def __call__(self, cmd, environ, cwd): | |
327 | args = [util.quotecommand(cmd), os.path.abspath(cwd or '.')] |
|
328 | args = [util.quotecommand(cmd), os.path.abspath(cwd or '.')] | |
328 | args.extend('%s=%s' % (k, v) for k, v in environ.iteritems()) |
|
329 | args.extend('%s=%s' % (k, v) for k, v in environ.iteritems()) | |
329 | data = '\0'.join(args) |
|
330 | data = '\0'.join(args) | |
330 | self.out.write(struct.pack('>cI', self.channel, len(data))) |
|
331 | self.out.write(struct.pack('>cI', self.channel, len(data))) | |
331 | self.out.write(data) |
|
332 | self.out.write(data) | |
332 | self.out.flush() |
|
333 | self.out.flush() | |
333 |
|
334 | |||
334 | length = self.in_.read(4) |
|
335 | length = self.in_.read(4) | |
335 | length, = struct.unpack('>I', length) |
|
336 | length, = struct.unpack('>I', length) | |
336 | if length != 4: |
|
337 | if length != 4: | |
337 | raise error.Abort(_('invalid response')) |
|
338 | raise error.Abort(_('invalid response')) | |
338 | rc, = struct.unpack('>i', self.in_.read(4)) |
|
339 | rc, = struct.unpack('>i', self.in_.read(4)) | |
339 | return rc |
|
340 | return rc | |
340 |
|
341 | |||
341 | _iochannels = [ |
|
342 | _iochannels = [ | |
342 | # server.ch, ui.fp, mode |
|
343 | # server.ch, ui.fp, mode | |
343 | ('cin', 'fin', 'rb'), |
|
344 | ('cin', 'fin', 'rb'), | |
344 | ('cout', 'fout', 'wb'), |
|
345 | ('cout', 'fout', 'wb'), | |
345 | ('cerr', 'ferr', 'wb'), |
|
346 | ('cerr', 'ferr', 'wb'), | |
346 | ] |
|
347 | ] | |
347 |
|
348 | |||
348 | class chgcmdserver(commandserver.server): |
|
349 | class chgcmdserver(commandserver.server): | |
349 | def __init__(self, ui, repo, fin, fout, sock, hashstate, baseaddress): |
|
350 | def __init__(self, ui, repo, fin, fout, sock, hashstate, baseaddress): | |
350 | super(chgcmdserver, self).__init__( |
|
351 | super(chgcmdserver, self).__init__( | |
351 | _newchgui(ui, channeledsystem(fin, fout, 'S')), repo, fin, fout) |
|
352 | _newchgui(ui, channeledsystem(fin, fout, 'S')), repo, fin, fout) | |
352 | self.clientsock = sock |
|
353 | self.clientsock = sock | |
353 | self._oldios = [] # original (self.ch, ui.fp, fd) before "attachio" |
|
354 | self._oldios = [] # original (self.ch, ui.fp, fd) before "attachio" | |
354 | self.hashstate = hashstate |
|
355 | self.hashstate = hashstate | |
355 | self.baseaddress = baseaddress |
|
356 | self.baseaddress = baseaddress | |
356 | if hashstate is not None: |
|
357 | if hashstate is not None: | |
357 | self.capabilities = self.capabilities.copy() |
|
358 | self.capabilities = self.capabilities.copy() | |
358 | self.capabilities['validate'] = chgcmdserver.validate |
|
359 | self.capabilities['validate'] = chgcmdserver.validate | |
359 |
|
360 | |||
360 | def cleanup(self): |
|
361 | def cleanup(self): | |
361 | # dispatch._runcatch() does not flush outputs if exception is not |
|
362 | # dispatch._runcatch() does not flush outputs if exception is not | |
362 | # handled by dispatch._dispatch() |
|
363 | # handled by dispatch._dispatch() | |
363 | self.ui.flush() |
|
364 | self.ui.flush() | |
364 | self._restoreio() |
|
365 | self._restoreio() | |
365 |
|
366 | |||
366 | def attachio(self): |
|
367 | def attachio(self): | |
367 | """Attach to client's stdio passed via unix domain socket; all |
|
368 | """Attach to client's stdio passed via unix domain socket; all | |
368 | channels except cresult will no longer be used |
|
369 | channels except cresult will no longer be used | |
369 | """ |
|
370 | """ | |
370 | # tell client to sendmsg() with 1-byte payload, which makes it |
|
371 | # tell client to sendmsg() with 1-byte payload, which makes it | |
371 | # distinctive from "attachio\n" command consumed by client.read() |
|
372 | # distinctive from "attachio\n" command consumed by client.read() | |
372 | self.clientsock.sendall(struct.pack('>cI', 'I', 1)) |
|
373 | self.clientsock.sendall(struct.pack('>cI', 'I', 1)) | |
373 | clientfds = osutil.recvfds(self.clientsock.fileno()) |
|
374 | clientfds = osutil.recvfds(self.clientsock.fileno()) | |
374 | _log('received fds: %r\n' % clientfds) |
|
375 | _log('received fds: %r\n' % clientfds) | |
375 |
|
376 | |||
376 | ui = self.ui |
|
377 | ui = self.ui | |
377 | ui.flush() |
|
378 | ui.flush() | |
378 | first = self._saveio() |
|
379 | first = self._saveio() | |
379 | for fd, (cn, fn, mode) in zip(clientfds, _iochannels): |
|
380 | for fd, (cn, fn, mode) in zip(clientfds, _iochannels): | |
380 | assert fd > 0 |
|
381 | assert fd > 0 | |
381 | fp = getattr(ui, fn) |
|
382 | fp = getattr(ui, fn) | |
382 | os.dup2(fd, fp.fileno()) |
|
383 | os.dup2(fd, fp.fileno()) | |
383 | os.close(fd) |
|
384 | os.close(fd) | |
384 | if not first: |
|
385 | if not first: | |
385 | continue |
|
386 | continue | |
386 | # reset buffering mode when client is first attached. as we want |
|
387 | # reset buffering mode when client is first attached. as we want | |
387 | # to see output immediately on pager, the mode stays unchanged |
|
388 | # to see output immediately on pager, the mode stays unchanged | |
388 | # when client re-attached. ferr is unchanged because it should |
|
389 | # when client re-attached. ferr is unchanged because it should | |
389 | # be unbuffered no matter if it is a tty or not. |
|
390 | # be unbuffered no matter if it is a tty or not. | |
390 | if fn == 'ferr': |
|
391 | if fn == 'ferr': | |
391 | newfp = fp |
|
392 | newfp = fp | |
392 | else: |
|
393 | else: | |
393 | # make it line buffered explicitly because the default is |
|
394 | # make it line buffered explicitly because the default is | |
394 | # decided on first write(), where fout could be a pager. |
|
395 | # decided on first write(), where fout could be a pager. | |
395 | if fp.isatty(): |
|
396 | if fp.isatty(): | |
396 | bufsize = 1 # line buffered |
|
397 | bufsize = 1 # line buffered | |
397 | else: |
|
398 | else: | |
398 | bufsize = -1 # system default |
|
399 | bufsize = -1 # system default | |
399 | newfp = os.fdopen(fp.fileno(), mode, bufsize) |
|
400 | newfp = os.fdopen(fp.fileno(), mode, bufsize) | |
400 | setattr(ui, fn, newfp) |
|
401 | setattr(ui, fn, newfp) | |
401 | setattr(self, cn, newfp) |
|
402 | setattr(self, cn, newfp) | |
402 |
|
403 | |||
403 | self.cresult.write(struct.pack('>i', len(clientfds))) |
|
404 | self.cresult.write(struct.pack('>i', len(clientfds))) | |
404 |
|
405 | |||
405 | def _saveio(self): |
|
406 | def _saveio(self): | |
406 | if self._oldios: |
|
407 | if self._oldios: | |
407 | return False |
|
408 | return False | |
408 | ui = self.ui |
|
409 | ui = self.ui | |
409 | for cn, fn, _mode in _iochannels: |
|
410 | for cn, fn, _mode in _iochannels: | |
410 | ch = getattr(self, cn) |
|
411 | ch = getattr(self, cn) | |
411 | fp = getattr(ui, fn) |
|
412 | fp = getattr(ui, fn) | |
412 | fd = os.dup(fp.fileno()) |
|
413 | fd = os.dup(fp.fileno()) | |
413 | self._oldios.append((ch, fp, fd)) |
|
414 | self._oldios.append((ch, fp, fd)) | |
414 | return True |
|
415 | return True | |
415 |
|
416 | |||
416 | def _restoreio(self): |
|
417 | def _restoreio(self): | |
417 | ui = self.ui |
|
418 | ui = self.ui | |
418 | for (ch, fp, fd), (cn, fn, _mode) in zip(self._oldios, _iochannels): |
|
419 | for (ch, fp, fd), (cn, fn, _mode) in zip(self._oldios, _iochannels): | |
419 | newfp = getattr(ui, fn) |
|
420 | newfp = getattr(ui, fn) | |
420 | # close newfp while it's associated with client; otherwise it |
|
421 | # close newfp while it's associated with client; otherwise it | |
421 | # would be closed when newfp is deleted |
|
422 | # would be closed when newfp is deleted | |
422 | if newfp is not fp: |
|
423 | if newfp is not fp: | |
423 | newfp.close() |
|
424 | newfp.close() | |
424 | # restore original fd: fp is open again |
|
425 | # restore original fd: fp is open again | |
425 | os.dup2(fd, fp.fileno()) |
|
426 | os.dup2(fd, fp.fileno()) | |
426 | os.close(fd) |
|
427 | os.close(fd) | |
427 | setattr(self, cn, ch) |
|
428 | setattr(self, cn, ch) | |
428 | setattr(ui, fn, fp) |
|
429 | setattr(ui, fn, fp) | |
429 | del self._oldios[:] |
|
430 | del self._oldios[:] | |
430 |
|
431 | |||
431 | def validate(self): |
|
432 | def validate(self): | |
432 | """Reload the config and check if the server is up to date |
|
433 | """Reload the config and check if the server is up to date | |
433 |
|
434 | |||
434 | Read a list of '\0' separated arguments. |
|
435 | Read a list of '\0' separated arguments. | |
435 | Write a non-empty list of '\0' separated instruction strings or '\0' |
|
436 | Write a non-empty list of '\0' separated instruction strings or '\0' | |
436 | if the list is empty. |
|
437 | if the list is empty. | |
437 | An instruction string could be either: |
|
438 | An instruction string could be either: | |
438 | - "unlink $path", the client should unlink the path to stop the |
|
439 | - "unlink $path", the client should unlink the path to stop the | |
439 | outdated server. |
|
440 | outdated server. | |
440 | - "redirect $path", the client should attempt to connect to $path |
|
441 | - "redirect $path", the client should attempt to connect to $path | |
441 | first. If it does not work, start a new server. It implies |
|
442 | first. If it does not work, start a new server. It implies | |
442 | "reconnect". |
|
443 | "reconnect". | |
443 | - "exit $n", the client should exit directly with code n. |
|
444 | - "exit $n", the client should exit directly with code n. | |
444 | This may happen if we cannot parse the config. |
|
445 | This may happen if we cannot parse the config. | |
445 | - "reconnect", the client should close the connection and |
|
446 | - "reconnect", the client should close the connection and | |
446 | reconnect. |
|
447 | reconnect. | |
447 | If neither "reconnect" nor "redirect" is included in the instruction |
|
448 | If neither "reconnect" nor "redirect" is included in the instruction | |
448 | list, the client can continue with this server after completing all |
|
449 | list, the client can continue with this server after completing all | |
449 | the instructions. |
|
450 | the instructions. | |
450 | """ |
|
451 | """ | |
451 | args = self._readlist() |
|
452 | args = self._readlist() | |
452 | try: |
|
453 | try: | |
453 |
self.ui = _ |
|
454 | self.ui, lui = _loadnewui(self.ui, args) | |
454 | except error.ParseError as inst: |
|
455 | except error.ParseError as inst: | |
455 | dispatch._formatparse(self.ui.warn, inst) |
|
456 | dispatch._formatparse(self.ui.warn, inst) | |
456 | self.ui.flush() |
|
457 | self.ui.flush() | |
457 | self.cresult.write('exit 255') |
|
458 | self.cresult.write('exit 255') | |
458 | return |
|
459 | return | |
459 |
newhash = hashstate.fromui( |
|
460 | newhash = hashstate.fromui(lui, self.hashstate.mtimepaths) | |
460 | insts = [] |
|
461 | insts = [] | |
461 | if newhash.mtimehash != self.hashstate.mtimehash: |
|
462 | if newhash.mtimehash != self.hashstate.mtimehash: | |
462 | addr = _hashaddress(self.baseaddress, self.hashstate.confighash) |
|
463 | addr = _hashaddress(self.baseaddress, self.hashstate.confighash) | |
463 | insts.append('unlink %s' % addr) |
|
464 | insts.append('unlink %s' % addr) | |
464 | # mtimehash is empty if one or more extensions fail to load. |
|
465 | # mtimehash is empty if one or more extensions fail to load. | |
465 | # to be compatible with hg, still serve the client this time. |
|
466 | # to be compatible with hg, still serve the client this time. | |
466 | if self.hashstate.mtimehash: |
|
467 | if self.hashstate.mtimehash: | |
467 | insts.append('reconnect') |
|
468 | insts.append('reconnect') | |
468 | if newhash.confighash != self.hashstate.confighash: |
|
469 | if newhash.confighash != self.hashstate.confighash: | |
469 | addr = _hashaddress(self.baseaddress, newhash.confighash) |
|
470 | addr = _hashaddress(self.baseaddress, newhash.confighash) | |
470 | insts.append('redirect %s' % addr) |
|
471 | insts.append('redirect %s' % addr) | |
471 | _log('validate: %s\n' % insts) |
|
472 | _log('validate: %s\n' % insts) | |
472 | self.cresult.write('\0'.join(insts) or '\0') |
|
473 | self.cresult.write('\0'.join(insts) or '\0') | |
473 |
|
474 | |||
474 | def chdir(self): |
|
475 | def chdir(self): | |
475 | """Change current directory |
|
476 | """Change current directory | |
476 |
|
477 | |||
477 | Note that the behavior of --cwd option is bit different from this. |
|
478 | Note that the behavior of --cwd option is bit different from this. | |
478 | It does not affect --config parameter. |
|
479 | It does not affect --config parameter. | |
479 | """ |
|
480 | """ | |
480 | path = self._readstr() |
|
481 | path = self._readstr() | |
481 | if not path: |
|
482 | if not path: | |
482 | return |
|
483 | return | |
483 | _log('chdir to %r\n' % path) |
|
484 | _log('chdir to %r\n' % path) | |
484 | os.chdir(path) |
|
485 | os.chdir(path) | |
485 |
|
486 | |||
486 | def setumask(self): |
|
487 | def setumask(self): | |
487 | """Change umask""" |
|
488 | """Change umask""" | |
488 | mask = struct.unpack('>I', self._read(4))[0] |
|
489 | mask = struct.unpack('>I', self._read(4))[0] | |
489 | _log('setumask %r\n' % mask) |
|
490 | _log('setumask %r\n' % mask) | |
490 | os.umask(mask) |
|
491 | os.umask(mask) | |
491 |
|
492 | |||
492 | def getpager(self): |
|
493 | def getpager(self): | |
493 | """Read cmdargs and write pager command to r-channel if enabled |
|
494 | """Read cmdargs and write pager command to r-channel if enabled | |
494 |
|
495 | |||
495 | If pager isn't enabled, this writes '\0' because channeledoutput |
|
496 | If pager isn't enabled, this writes '\0' because channeledoutput | |
496 | does not allow to write empty data. |
|
497 | does not allow to write empty data. | |
497 | """ |
|
498 | """ | |
498 | args = self._readlist() |
|
499 | args = self._readlist() | |
499 | try: |
|
500 | try: | |
500 | cmd, _func, args, options, _cmdoptions = dispatch._parse(self.ui, |
|
501 | cmd, _func, args, options, _cmdoptions = dispatch._parse(self.ui, | |
501 | args) |
|
502 | args) | |
502 | except (error.Abort, error.AmbiguousCommand, error.CommandError, |
|
503 | except (error.Abort, error.AmbiguousCommand, error.CommandError, | |
503 | error.UnknownCommand): |
|
504 | error.UnknownCommand): | |
504 | cmd = None |
|
505 | cmd = None | |
505 | options = {} |
|
506 | options = {} | |
506 | if not cmd or 'pager' not in options: |
|
507 | if not cmd or 'pager' not in options: | |
507 | self.cresult.write('\0') |
|
508 | self.cresult.write('\0') | |
508 | return |
|
509 | return | |
509 |
|
510 | |||
510 | pagercmd = _setuppagercmd(self.ui, options, cmd) |
|
511 | pagercmd = _setuppagercmd(self.ui, options, cmd) | |
511 | if pagercmd: |
|
512 | if pagercmd: | |
512 | self.cresult.write(pagercmd) |
|
513 | self.cresult.write(pagercmd) | |
513 | else: |
|
514 | else: | |
514 | self.cresult.write('\0') |
|
515 | self.cresult.write('\0') | |
515 |
|
516 | |||
516 | def setenv(self): |
|
517 | def setenv(self): | |
517 | """Clear and update os.environ |
|
518 | """Clear and update os.environ | |
518 |
|
519 | |||
519 | Note that not all variables can make an effect on the running process. |
|
520 | Note that not all variables can make an effect on the running process. | |
520 | """ |
|
521 | """ | |
521 | l = self._readlist() |
|
522 | l = self._readlist() | |
522 | try: |
|
523 | try: | |
523 | newenv = dict(s.split('=', 1) for s in l) |
|
524 | newenv = dict(s.split('=', 1) for s in l) | |
524 | except ValueError: |
|
525 | except ValueError: | |
525 | raise ValueError('unexpected value in setenv request') |
|
526 | raise ValueError('unexpected value in setenv request') | |
526 |
|
527 | |||
527 | diffkeys = set(k for k in set(os.environ.keys() + newenv.keys()) |
|
528 | diffkeys = set(k for k in set(os.environ.keys() + newenv.keys()) | |
528 | if os.environ.get(k) != newenv.get(k)) |
|
529 | if os.environ.get(k) != newenv.get(k)) | |
529 | _log('change env: %r\n' % sorted(diffkeys)) |
|
530 | _log('change env: %r\n' % sorted(diffkeys)) | |
530 |
|
531 | |||
531 | os.environ.clear() |
|
532 | os.environ.clear() | |
532 | os.environ.update(newenv) |
|
533 | os.environ.update(newenv) | |
533 |
|
534 | |||
534 | if set(['HGPLAIN', 'HGPLAINEXCEPT']) & diffkeys: |
|
535 | if set(['HGPLAIN', 'HGPLAINEXCEPT']) & diffkeys: | |
535 | # reload config so that ui.plain() takes effect |
|
536 | # reload config so that ui.plain() takes effect | |
536 |
self.ui = _ |
|
537 | self.ui, _lui = _loadnewui(self.ui) | |
537 |
|
538 | |||
538 | _clearenvaliases(commands.table) |
|
539 | _clearenvaliases(commands.table) | |
539 |
|
540 | |||
540 | capabilities = commandserver.server.capabilities.copy() |
|
541 | capabilities = commandserver.server.capabilities.copy() | |
541 | capabilities.update({'attachio': attachio, |
|
542 | capabilities.update({'attachio': attachio, | |
542 | 'chdir': chdir, |
|
543 | 'chdir': chdir, | |
543 | 'getpager': getpager, |
|
544 | 'getpager': getpager, | |
544 | 'setenv': setenv, |
|
545 | 'setenv': setenv, | |
545 | 'setumask': setumask}) |
|
546 | 'setumask': setumask}) | |
546 |
|
547 | |||
547 | # copied from mercurial/commandserver.py |
|
548 | # copied from mercurial/commandserver.py | |
548 | class _requesthandler(SocketServer.StreamRequestHandler): |
|
549 | class _requesthandler(SocketServer.StreamRequestHandler): | |
549 | def handle(self): |
|
550 | def handle(self): | |
550 | # use a different process group from the master process, making this |
|
551 | # use a different process group from the master process, making this | |
551 | # process pass kernel "is_current_pgrp_orphaned" check so signals like |
|
552 | # process pass kernel "is_current_pgrp_orphaned" check so signals like | |
552 | # SIGTSTP, SIGTTIN, SIGTTOU are not ignored. |
|
553 | # SIGTSTP, SIGTTIN, SIGTTOU are not ignored. | |
553 | os.setpgid(0, 0) |
|
554 | os.setpgid(0, 0) | |
554 | ui = self.server.ui |
|
555 | ui = self.server.ui | |
555 | repo = self.server.repo |
|
556 | repo = self.server.repo | |
556 | sv = None |
|
557 | sv = None | |
557 | try: |
|
558 | try: | |
558 | sv = chgcmdserver(ui, repo, self.rfile, self.wfile, self.connection, |
|
559 | sv = chgcmdserver(ui, repo, self.rfile, self.wfile, self.connection, | |
559 | self.server.hashstate, self.server.baseaddress) |
|
560 | self.server.hashstate, self.server.baseaddress) | |
560 | try: |
|
561 | try: | |
561 | sv.serve() |
|
562 | sv.serve() | |
562 | # handle exceptions that may be raised by command server. most of |
|
563 | # handle exceptions that may be raised by command server. most of | |
563 | # known exceptions are caught by dispatch. |
|
564 | # known exceptions are caught by dispatch. | |
564 | except error.Abort as inst: |
|
565 | except error.Abort as inst: | |
565 | ui.warn(_('abort: %s\n') % inst) |
|
566 | ui.warn(_('abort: %s\n') % inst) | |
566 | except IOError as inst: |
|
567 | except IOError as inst: | |
567 | if inst.errno != errno.EPIPE: |
|
568 | if inst.errno != errno.EPIPE: | |
568 | raise |
|
569 | raise | |
569 | except KeyboardInterrupt: |
|
570 | except KeyboardInterrupt: | |
570 | pass |
|
571 | pass | |
571 | finally: |
|
572 | finally: | |
572 | sv.cleanup() |
|
573 | sv.cleanup() | |
573 | except: # re-raises |
|
574 | except: # re-raises | |
574 | # also write traceback to error channel. otherwise client cannot |
|
575 | # also write traceback to error channel. otherwise client cannot | |
575 | # see it because it is written to server's stderr by default. |
|
576 | # see it because it is written to server's stderr by default. | |
576 | if sv: |
|
577 | if sv: | |
577 | cerr = sv.cerr |
|
578 | cerr = sv.cerr | |
578 | else: |
|
579 | else: | |
579 | cerr = commandserver.channeledoutput(self.wfile, 'e') |
|
580 | cerr = commandserver.channeledoutput(self.wfile, 'e') | |
580 | traceback.print_exc(file=cerr) |
|
581 | traceback.print_exc(file=cerr) | |
581 | raise |
|
582 | raise | |
582 | finally: |
|
583 | finally: | |
583 | # trigger __del__ since ForkingMixIn uses os._exit |
|
584 | # trigger __del__ since ForkingMixIn uses os._exit | |
584 | gc.collect() |
|
585 | gc.collect() | |
585 |
|
586 | |||
586 | def _tempaddress(address): |
|
587 | def _tempaddress(address): | |
587 | return '%s.%d.tmp' % (address, os.getpid()) |
|
588 | return '%s.%d.tmp' % (address, os.getpid()) | |
588 |
|
589 | |||
589 | def _hashaddress(address, hashstr): |
|
590 | def _hashaddress(address, hashstr): | |
590 | return '%s-%s' % (address, hashstr) |
|
591 | return '%s-%s' % (address, hashstr) | |
591 |
|
592 | |||
592 | class AutoExitMixIn: # use old-style to comply with SocketServer design |
|
593 | class AutoExitMixIn: # use old-style to comply with SocketServer design | |
593 | lastactive = time.time() |
|
594 | lastactive = time.time() | |
594 | idletimeout = 3600 # default 1 hour |
|
595 | idletimeout = 3600 # default 1 hour | |
595 |
|
596 | |||
596 | def startautoexitthread(self): |
|
597 | def startautoexitthread(self): | |
597 | # note: the auto-exit check here is cheap enough to not use a thread, |
|
598 | # note: the auto-exit check here is cheap enough to not use a thread, | |
598 | # be done in serve_forever. however SocketServer is hook-unfriendly, |
|
599 | # be done in serve_forever. however SocketServer is hook-unfriendly, | |
599 | # you simply cannot hook serve_forever without copying a lot of code. |
|
600 | # you simply cannot hook serve_forever without copying a lot of code. | |
600 | # besides, serve_forever's docstring suggests using thread. |
|
601 | # besides, serve_forever's docstring suggests using thread. | |
601 | thread = threading.Thread(target=self._autoexitloop) |
|
602 | thread = threading.Thread(target=self._autoexitloop) | |
602 | thread.daemon = True |
|
603 | thread.daemon = True | |
603 | thread.start() |
|
604 | thread.start() | |
604 |
|
605 | |||
605 | def _autoexitloop(self, interval=1): |
|
606 | def _autoexitloop(self, interval=1): | |
606 | while True: |
|
607 | while True: | |
607 | time.sleep(interval) |
|
608 | time.sleep(interval) | |
608 | if not self.issocketowner(): |
|
609 | if not self.issocketowner(): | |
609 | _log('%s is not owned, exiting.\n' % self.server_address) |
|
610 | _log('%s is not owned, exiting.\n' % self.server_address) | |
610 | break |
|
611 | break | |
611 | if time.time() - self.lastactive > self.idletimeout: |
|
612 | if time.time() - self.lastactive > self.idletimeout: | |
612 | _log('being idle too long. exiting.\n') |
|
613 | _log('being idle too long. exiting.\n') | |
613 | break |
|
614 | break | |
614 | self.shutdown() |
|
615 | self.shutdown() | |
615 |
|
616 | |||
616 | def process_request(self, request, address): |
|
617 | def process_request(self, request, address): | |
617 | self.lastactive = time.time() |
|
618 | self.lastactive = time.time() | |
618 | return SocketServer.ForkingMixIn.process_request( |
|
619 | return SocketServer.ForkingMixIn.process_request( | |
619 | self, request, address) |
|
620 | self, request, address) | |
620 |
|
621 | |||
621 | def server_bind(self): |
|
622 | def server_bind(self): | |
622 | # use a unique temp address so we can stat the file and do ownership |
|
623 | # use a unique temp address so we can stat the file and do ownership | |
623 | # check later |
|
624 | # check later | |
624 | tempaddress = _tempaddress(self.server_address) |
|
625 | tempaddress = _tempaddress(self.server_address) | |
625 | self.socket.bind(tempaddress) |
|
626 | self.socket.bind(tempaddress) | |
626 | self._socketstat = os.stat(tempaddress) |
|
627 | self._socketstat = os.stat(tempaddress) | |
627 | # rename will replace the old socket file if exists atomically. the |
|
628 | # rename will replace the old socket file if exists atomically. the | |
628 | # old server will detect ownership change and exit. |
|
629 | # old server will detect ownership change and exit. | |
629 | util.rename(tempaddress, self.server_address) |
|
630 | util.rename(tempaddress, self.server_address) | |
630 |
|
631 | |||
631 | def issocketowner(self): |
|
632 | def issocketowner(self): | |
632 | try: |
|
633 | try: | |
633 | stat = os.stat(self.server_address) |
|
634 | stat = os.stat(self.server_address) | |
634 | return (stat.st_ino == self._socketstat.st_ino and |
|
635 | return (stat.st_ino == self._socketstat.st_ino and | |
635 | stat.st_mtime == self._socketstat.st_mtime) |
|
636 | stat.st_mtime == self._socketstat.st_mtime) | |
636 | except OSError: |
|
637 | except OSError: | |
637 | return False |
|
638 | return False | |
638 |
|
639 | |||
639 | def unlinksocketfile(self): |
|
640 | def unlinksocketfile(self): | |
640 | if not self.issocketowner(): |
|
641 | if not self.issocketowner(): | |
641 | return |
|
642 | return | |
642 | # it is possible to have a race condition here that we may |
|
643 | # it is possible to have a race condition here that we may | |
643 | # remove another server's socket file. but that's okay |
|
644 | # remove another server's socket file. but that's okay | |
644 | # since that server will detect and exit automatically and |
|
645 | # since that server will detect and exit automatically and | |
645 | # the client will start a new server on demand. |
|
646 | # the client will start a new server on demand. | |
646 | try: |
|
647 | try: | |
647 | os.unlink(self.server_address) |
|
648 | os.unlink(self.server_address) | |
648 | except OSError as exc: |
|
649 | except OSError as exc: | |
649 | if exc.errno != errno.ENOENT: |
|
650 | if exc.errno != errno.ENOENT: | |
650 | raise |
|
651 | raise | |
651 |
|
652 | |||
652 | class chgunixservice(commandserver.unixservice): |
|
653 | class chgunixservice(commandserver.unixservice): | |
653 | def init(self): |
|
654 | def init(self): | |
654 | self.repo = None |
|
655 | self.repo = None | |
655 | self._inithashstate() |
|
656 | self._inithashstate() | |
656 | self._checkextensions() |
|
657 | self._checkextensions() | |
657 | class cls(AutoExitMixIn, SocketServer.ForkingMixIn, |
|
658 | class cls(AutoExitMixIn, SocketServer.ForkingMixIn, | |
658 | SocketServer.UnixStreamServer): |
|
659 | SocketServer.UnixStreamServer): | |
659 | ui = self.ui |
|
660 | ui = self.ui | |
660 | repo = self.repo |
|
661 | repo = self.repo | |
661 | hashstate = self.hashstate |
|
662 | hashstate = self.hashstate | |
662 | baseaddress = self.baseaddress |
|
663 | baseaddress = self.baseaddress | |
663 | self.server = cls(self.address, _requesthandler) |
|
664 | self.server = cls(self.address, _requesthandler) | |
664 | self.server.idletimeout = self.ui.configint( |
|
665 | self.server.idletimeout = self.ui.configint( | |
665 | 'chgserver', 'idletimeout', self.server.idletimeout) |
|
666 | 'chgserver', 'idletimeout', self.server.idletimeout) | |
666 | self.server.startautoexitthread() |
|
667 | self.server.startautoexitthread() | |
667 | self._createsymlink() |
|
668 | self._createsymlink() | |
668 |
|
669 | |||
669 | def _inithashstate(self): |
|
670 | def _inithashstate(self): | |
670 | self.baseaddress = self.address |
|
671 | self.baseaddress = self.address | |
671 | if self.ui.configbool('chgserver', 'skiphash', False): |
|
672 | if self.ui.configbool('chgserver', 'skiphash', False): | |
672 | self.hashstate = None |
|
673 | self.hashstate = None | |
673 | return |
|
674 | return | |
674 | self.hashstate = hashstate.fromui(self.ui) |
|
675 | self.hashstate = hashstate.fromui(self.ui) | |
675 | self.address = _hashaddress(self.address, self.hashstate.confighash) |
|
676 | self.address = _hashaddress(self.address, self.hashstate.confighash) | |
676 |
|
677 | |||
677 | def _checkextensions(self): |
|
678 | def _checkextensions(self): | |
678 | if not self.hashstate: |
|
679 | if not self.hashstate: | |
679 | return |
|
680 | return | |
680 | if extensions.notloaded(): |
|
681 | if extensions.notloaded(): | |
681 | # one or more extensions failed to load. mtimehash becomes |
|
682 | # one or more extensions failed to load. mtimehash becomes | |
682 | # meaningless because we do not know the paths of those extensions. |
|
683 | # meaningless because we do not know the paths of those extensions. | |
683 | # set mtimehash to an illegal hash value to invalidate the server. |
|
684 | # set mtimehash to an illegal hash value to invalidate the server. | |
684 | self.hashstate.mtimehash = '' |
|
685 | self.hashstate.mtimehash = '' | |
685 |
|
686 | |||
686 | def _createsymlink(self): |
|
687 | def _createsymlink(self): | |
687 | if self.baseaddress == self.address: |
|
688 | if self.baseaddress == self.address: | |
688 | return |
|
689 | return | |
689 | tempaddress = _tempaddress(self.baseaddress) |
|
690 | tempaddress = _tempaddress(self.baseaddress) | |
690 | os.symlink(os.path.basename(self.address), tempaddress) |
|
691 | os.symlink(os.path.basename(self.address), tempaddress) | |
691 | util.rename(tempaddress, self.baseaddress) |
|
692 | util.rename(tempaddress, self.baseaddress) | |
692 |
|
693 | |||
693 | def run(self): |
|
694 | def run(self): | |
694 | try: |
|
695 | try: | |
695 | self.server.serve_forever() |
|
696 | self.server.serve_forever() | |
696 | finally: |
|
697 | finally: | |
697 | self.server.unlinksocketfile() |
|
698 | self.server.unlinksocketfile() | |
698 |
|
699 | |||
699 | def uisetup(ui): |
|
700 | def uisetup(ui): | |
700 | commandserver._servicemap['chgunix'] = chgunixservice |
|
701 | commandserver._servicemap['chgunix'] = chgunixservice | |
701 |
|
702 | |||
702 | # CHGINTERNALMARK is temporarily set by chg client to detect if chg will |
|
703 | # CHGINTERNALMARK is temporarily set by chg client to detect if chg will | |
703 | # start another chg. drop it to avoid possible side effects. |
|
704 | # start another chg. drop it to avoid possible side effects. | |
704 | if 'CHGINTERNALMARK' in os.environ: |
|
705 | if 'CHGINTERNALMARK' in os.environ: | |
705 | del os.environ['CHGINTERNALMARK'] |
|
706 | del os.environ['CHGINTERNALMARK'] |
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