chg: do not write pidfile
Current pidfile logic will only keep the pid of the newest server, which is
not very useful if we want to kill all servers, and will become outdated if
the server auto exits after being idle for too long.
Besides, the server-side pidfile writing logic runs before chgserver gets
confighash so it's not trivial to append confighash to pidfile basename like
we did for socket file.
This patch removes --pidfile from the command starting chgserver and switches
to an alternative way (unlink socket file) to stop the server.
# monotone.py - monotone support for the convert extension
#
# Copyright 2008, 2009 Mikkel Fahnoe Jorgensen <mikkel@dvide.com> and
# others
#
# 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
import re
from mercurial import (
error,
util,
)
from mercurial.i18n import _
from . import common
class monotone_source(common.converter_source, common.commandline):
def __init__(self, ui, path=None, revs=None):
common.converter_source.__init__(self, ui, path, revs)
if revs and len(revs) > 1:
raise error.Abort(_('monotone source does not support specifying '
'multiple revs'))
common.commandline.__init__(self, ui, 'mtn')
self.ui = ui
self.path = path
self.automatestdio = False
self.revs = revs
norepo = common.NoRepo(_("%s does not look like a monotone repository")
% path)
if not os.path.exists(os.path.join(path, '_MTN')):
# Could be a monotone repository (SQLite db file)
try:
f = file(path, 'rb')
header = f.read(16)
f.close()
except IOError:
header = ''
if header != 'SQLite format 3\x00':
raise norepo
# regular expressions for parsing monotone output
space = r'\s*'
name = r'\s+"((?:\\"|[^"])*)"\s*'
value = name
revision = r'\s+\[(\w+)\]\s*'
lines = r'(?:.|\n)+'
self.dir_re = re.compile(space + "dir" + name)
self.file_re = re.compile(space + "file" + name +
"content" + revision)
self.add_file_re = re.compile(space + "add_file" + name +
"content" + revision)
self.patch_re = re.compile(space + "patch" + name +
"from" + revision + "to" + revision)
self.rename_re = re.compile(space + "rename" + name + "to" + name)
self.delete_re = re.compile(space + "delete" + name)
self.tag_re = re.compile(space + "tag" + name + "revision" +
revision)
self.cert_re = re.compile(lines + space + "name" + name +
"value" + value)
attr = space + "file" + lines + space + "attr" + space
self.attr_execute_re = re.compile(attr + '"mtn:execute"' +
space + '"true"')
# cached data
self.manifest_rev = None
self.manifest = None
self.files = None
self.dirs = None
common.checktool('mtn', abort=False)
def mtnrun(self, *args, **kwargs):
if self.automatestdio:
return self.mtnrunstdio(*args, **kwargs)
else:
return self.mtnrunsingle(*args, **kwargs)
def mtnrunsingle(self, *args, **kwargs):
kwargs['d'] = self.path
return self.run0('automate', *args, **kwargs)
def mtnrunstdio(self, *args, **kwargs):
# Prepare the command in automate stdio format
command = []
for k, v in kwargs.iteritems():
command.append("%s:%s" % (len(k), k))
if v:
command.append("%s:%s" % (len(v), v))
if command:
command.insert(0, 'o')
command.append('e')
command.append('l')
for arg in args:
command += "%s:%s" % (len(arg), arg)
command.append('e')
command = ''.join(command)
self.ui.debug("mtn: sending '%s'\n" % command)
self.mtnwritefp.write(command)
self.mtnwritefp.flush()
return self.mtnstdioreadcommandoutput(command)
def mtnstdioreadpacket(self):
read = None
commandnbr = ''
while read != ':':
read = self.mtnreadfp.read(1)
if not read:
raise error.Abort(_('bad mtn packet - no end of commandnbr'))
commandnbr += read
commandnbr = commandnbr[:-1]
stream = self.mtnreadfp.read(1)
if stream not in 'mewptl':
raise error.Abort(_('bad mtn packet - bad stream type %s') % stream)
read = self.mtnreadfp.read(1)
if read != ':':
raise error.Abort(_('bad mtn packet - no divider before size'))
read = None
lengthstr = ''
while read != ':':
read = self.mtnreadfp.read(1)
if not read:
raise error.Abort(_('bad mtn packet - no end of packet size'))
lengthstr += read
try:
length = long(lengthstr[:-1])
except TypeError:
raise error.Abort(_('bad mtn packet - bad packet size %s')
% lengthstr)
read = self.mtnreadfp.read(length)
if len(read) != length:
raise error.Abort(_("bad mtn packet - unable to read full packet "
"read %s of %s") % (len(read), length))
return (commandnbr, stream, length, read)
def mtnstdioreadcommandoutput(self, command):
retval = []
while True:
commandnbr, stream, length, output = self.mtnstdioreadpacket()
self.ui.debug('mtn: read packet %s:%s:%s\n' %
(commandnbr, stream, length))
if stream == 'l':
# End of command
if output != '0':
raise error.Abort(_("mtn command '%s' returned %s") %
(command, output))
break
elif stream in 'ew':
# Error, warning output
self.ui.warn(_('%s error:\n') % self.command)
self.ui.warn(output)
elif stream == 'p':
# Progress messages
self.ui.debug('mtn: ' + output)
elif stream == 'm':
# Main stream - command output
retval.append(output)
return ''.join(retval)
def mtnloadmanifest(self, rev):
if self.manifest_rev == rev:
return
self.manifest = self.mtnrun("get_manifest_of", rev).split("\n\n")
self.manifest_rev = rev
self.files = {}
self.dirs = {}
for e in self.manifest:
m = self.file_re.match(e)
if m:
attr = ""
name = m.group(1)
node = m.group(2)
if self.attr_execute_re.match(e):
attr += "x"
self.files[name] = (node, attr)
m = self.dir_re.match(e)
if m:
self.dirs[m.group(1)] = True
def mtnisfile(self, name, rev):
# a non-file could be a directory or a deleted or renamed file
self.mtnloadmanifest(rev)
return name in self.files
def mtnisdir(self, name, rev):
self.mtnloadmanifest(rev)
return name in self.dirs
def mtngetcerts(self, rev):
certs = {"author":"<missing>", "date":"<missing>",
"changelog":"<missing>", "branch":"<missing>"}
certlist = self.mtnrun("certs", rev)
# mtn < 0.45:
# key "test@selenic.com"
# mtn >= 0.45:
# key [ff58a7ffb771907c4ff68995eada1c4da068d328]
certlist = re.split('\n\n key ["\[]', certlist)
for e in certlist:
m = self.cert_re.match(e)
if m:
name, value = m.groups()
value = value.replace(r'\"', '"')
value = value.replace(r'\\', '\\')
certs[name] = value
# Monotone may have subsecond dates: 2005-02-05T09:39:12.364306
# and all times are stored in UTC
certs["date"] = certs["date"].split('.')[0] + " UTC"
return certs
# implement the converter_source interface:
def getheads(self):
if not self.revs:
return self.mtnrun("leaves").splitlines()
else:
return self.revs
def getchanges(self, rev, full):
if full:
raise error.Abort(_("convert from monotone does not support "
"--full"))
revision = self.mtnrun("get_revision", rev).split("\n\n")
files = {}
ignoremove = {}
renameddirs = []
copies = {}
for e in revision:
m = self.add_file_re.match(e)
if m:
files[m.group(1)] = rev
ignoremove[m.group(1)] = rev
m = self.patch_re.match(e)
if m:
files[m.group(1)] = rev
# Delete/rename is handled later when the convert engine
# discovers an IOError exception from getfile,
# but only if we add the "from" file to the list of changes.
m = self.delete_re.match(e)
if m:
files[m.group(1)] = rev
m = self.rename_re.match(e)
if m:
toname = m.group(2)
fromname = m.group(1)
if self.mtnisfile(toname, rev):
ignoremove[toname] = 1
copies[toname] = fromname
files[toname] = rev
files[fromname] = rev
elif self.mtnisdir(toname, rev):
renameddirs.append((fromname, toname))
# Directory renames can be handled only once we have recorded
# all new files
for fromdir, todir in renameddirs:
renamed = {}
for tofile in self.files:
if tofile in ignoremove:
continue
if tofile.startswith(todir + '/'):
renamed[tofile] = fromdir + tofile[len(todir):]
# Avoid chained moves like:
# d1(/a) => d3/d1(/a)
# d2 => d3
ignoremove[tofile] = 1
for tofile, fromfile in renamed.items():
self.ui.debug (_("copying file in renamed directory "
"from '%s' to '%s'")
% (fromfile, tofile), '\n')
files[tofile] = rev
copies[tofile] = fromfile
for fromfile in renamed.values():
files[fromfile] = rev
return (files.items(), copies, set())
def getfile(self, name, rev):
if not self.mtnisfile(name, rev):
return None, None
try:
data = self.mtnrun("get_file_of", name, r=rev)
except Exception:
return None, None
self.mtnloadmanifest(rev)
node, attr = self.files.get(name, (None, ""))
return data, attr
def getcommit(self, rev):
extra = {}
certs = self.mtngetcerts(rev)
if certs.get('suspend') == certs["branch"]:
extra['close'] = 1
return common.commit(
author=certs["author"],
date=util.datestr(util.strdate(certs["date"], "%Y-%m-%dT%H:%M:%S")),
desc=certs["changelog"],
rev=rev,
parents=self.mtnrun("parents", rev).splitlines(),
branch=certs["branch"],
extra=extra)
def gettags(self):
tags = {}
for e in self.mtnrun("tags").split("\n\n"):
m = self.tag_re.match(e)
if m:
tags[m.group(1)] = m.group(2)
return tags
def getchangedfiles(self, rev, i):
# This function is only needed to support --filemap
# ... and we don't support that
raise NotImplementedError
def before(self):
# Check if we have a new enough version to use automate stdio
version = 0.0
try:
versionstr = self.mtnrunsingle("interface_version")
version = float(versionstr)
except Exception:
raise error.Abort(_("unable to determine mtn automate interface "
"version"))
if version >= 12.0:
self.automatestdio = True
self.ui.debug("mtn automate version %s - using automate stdio\n" %
version)
# launch the long-running automate stdio process
self.mtnwritefp, self.mtnreadfp = self._run2('automate', 'stdio',
'-d', self.path)
# read the headers
read = self.mtnreadfp.readline()
if read != 'format-version: 2\n':
raise error.Abort(_('mtn automate stdio header unexpected: %s')
% read)
while read != '\n':
read = self.mtnreadfp.readline()
if not read:
raise error.Abort(_("failed to reach end of mtn automate "
"stdio headers"))
else:
self.ui.debug("mtn automate version %s - not using automate stdio "
"(automate >= 12.0 - mtn >= 0.46 is needed)\n" % version)
def after(self):
if self.automatestdio:
self.mtnwritefp.close()
self.mtnwritefp = None
self.mtnreadfp.close()
self.mtnreadfp = None