Mercurial > hg
view mercurial/server.py @ 45447:e7c8a5030a90
merge: show number of ancestors in bid merge debug notes
A good number of times, we don't generate an action for a file in
manifestmerge() which can result in bid merge doing the wrong thing.
Mentioning the number of ancestors from which we are bidding will help spot such
cases where we are not returning an action.
Differential Revision: https://phab.mercurial-scm.org/D8967
author | Pulkit Goyal <7895pulkit@gmail.com> |
---|---|
date | Wed, 26 Aug 2020 17:24:22 +0530 |
parents | eef9a2d67051 |
children | d4ba4d51f85f |
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# server.py - utility and factory of server # # Copyright 2005-2007 Matt Mackall <mpm@selenic.com> # # This software may be used and distributed according to the terms of the # GNU General Public License version 2 or any later version. from __future__ import absolute_import import os from .i18n import _ from .pycompat import open from . import ( chgserver, cmdutil, commandserver, error, hgweb, pycompat, util, ) from .utils import procutil def runservice( opts, parentfn=None, initfn=None, runfn=None, logfile=None, runargs=None, appendpid=False, ): '''Run a command as a service.''' postexecargs = {} if opts[b'daemon_postexec']: for inst in opts[b'daemon_postexec']: if inst.startswith(b'unlink:'): postexecargs[b'unlink'] = inst[7:] elif inst.startswith(b'chdir:'): postexecargs[b'chdir'] = inst[6:] elif inst != b'none': raise error.Abort( _(b'invalid value for --daemon-postexec: %s') % inst ) # When daemonized on Windows, redirect stdout/stderr to the lockfile (which # gets cleaned up after the child is up and running), so that the parent can # read and print the error if this child dies early. See 594dd384803c. On # other platforms, the child can write to the parent's stdio directly, until # it is redirected prior to runfn(). if pycompat.iswindows and opts[b'daemon_postexec']: if b'unlink' in postexecargs and os.path.exists( postexecargs[b'unlink'] ): procutil.stdout.flush() procutil.stderr.flush() fd = os.open( postexecargs[b'unlink'], os.O_WRONLY | os.O_APPEND | os.O_BINARY ) try: os.dup2(fd, procutil.stdout.fileno()) os.dup2(fd, procutil.stderr.fileno()) finally: os.close(fd) def writepid(pid): if opts[b'pid_file']: if appendpid: mode = b'ab' else: mode = b'wb' fp = open(opts[b'pid_file'], mode) fp.write(b'%d\n' % pid) fp.close() if opts[b'daemon'] and not opts[b'daemon_postexec']: # Signal child process startup with file removal lockfd, lockpath = pycompat.mkstemp(prefix=b'hg-service-') os.close(lockfd) try: if not runargs: runargs = procutil.hgcmd() + pycompat.sysargv[1:] runargs.append(b'--daemon-postexec=unlink:%s' % lockpath) # Don't pass --cwd to the child process, because we've already # changed directory. for i in pycompat.xrange(1, len(runargs)): if runargs[i].startswith(b'--cwd='): del runargs[i] break elif runargs[i].startswith(b'--cwd'): del runargs[i : i + 2] break def condfn(): return not os.path.exists(lockpath) pid = procutil.rundetached(runargs, condfn) if pid < 0: # If the daemonized process managed to write out an error msg, # report it. if pycompat.iswindows and os.path.exists(lockpath): with open(lockpath, b'rb') as log: for line in log: procutil.stderr.write(line) raise error.Abort(_(b'child process failed to start')) writepid(pid) finally: util.tryunlink(lockpath) if parentfn: return parentfn(pid) else: return if initfn: initfn() if not opts[b'daemon']: writepid(procutil.getpid()) if opts[b'daemon_postexec']: try: os.setsid() except AttributeError: pass if b'chdir' in postexecargs: os.chdir(postexecargs[b'chdir']) procutil.hidewindow() procutil.stdout.flush() procutil.stderr.flush() nullfd = os.open(os.devnull, os.O_RDWR) logfilefd = nullfd if logfile: logfilefd = os.open( logfile, os.O_RDWR | os.O_CREAT | os.O_APPEND, 0o666 ) os.dup2(nullfd, procutil.stdin.fileno()) os.dup2(logfilefd, procutil.stdout.fileno()) os.dup2(logfilefd, procutil.stderr.fileno()) stdio = ( procutil.stdin.fileno(), procutil.stdout.fileno(), procutil.stderr.fileno(), ) if nullfd not in stdio: os.close(nullfd) if logfile and logfilefd not in stdio: os.close(logfilefd) # Only unlink after redirecting stdout/stderr, so Windows doesn't # complain about a sharing violation. if b'unlink' in postexecargs: os.unlink(postexecargs[b'unlink']) if runfn: return runfn() _cmdservicemap = { b'chgunix': chgserver.chgunixservice, b'pipe': commandserver.pipeservice, b'unix': commandserver.unixforkingservice, } def _createcmdservice(ui, repo, opts): mode = opts[b'cmdserver'] try: servicefn = _cmdservicemap[mode] except KeyError: raise error.Abort(_(b'unknown mode %s') % mode) commandserver.setuplogging(ui, repo) return servicefn(ui, repo, opts) def _createhgwebservice(ui, repo, opts): # this way we can check if something was given in the command-line if opts.get(b'port'): opts[b'port'] = util.getport(opts.get(b'port')) alluis = {ui} if repo: baseui = repo.baseui alluis.update([repo.baseui, repo.ui]) else: baseui = ui webconf = opts.get(b'web_conf') or opts.get(b'webdir_conf') if webconf: if opts.get(b'subrepos'): raise error.Abort(_(b'--web-conf cannot be used with --subrepos')) # load server settings (e.g. web.port) to "copied" ui, which allows # hgwebdir to reload webconf cleanly servui = ui.copy() servui.readconfig(webconf, sections=[b'web']) alluis.add(servui) elif opts.get(b'subrepos'): servui = ui # If repo is None, hgweb.createapp() already raises a proper abort # message as long as webconf is None. if repo: webconf = dict() cmdutil.addwebdirpath(repo, b"", webconf) else: servui = ui optlist = ( b"name templates style address port prefix ipv6" b" accesslog errorlog certificate encoding" ) for o in optlist.split(): val = opts.get(o, b'') if val in (None, b''): # should check against default options instead continue for u in alluis: u.setconfig(b"web", o, val, b'serve') app = hgweb.createapp(baseui, repo, webconf) return hgweb.httpservice(servui, app, opts) def createservice(ui, repo, opts): if opts[b"cmdserver"]: return _createcmdservice(ui, repo, opts) else: return _createhgwebservice(ui, repo, opts)