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