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# cvs.py: CVS conversion code inspired by hg-cvs-import and git-cvsimport
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#
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# Copyright 2005-2009 Olivia Mackall <olivia@selenic.com> and 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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import errno
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import os
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import re
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import socket
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from mercurial.i18n import _
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from mercurial.pycompat import (
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open,
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)
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from mercurial import (
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encoding,
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error,
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util,
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)
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from mercurial.utils import (
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dateutil,
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procutil,
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)
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from . import (
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common,
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cvsps,
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)
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stringio = util.stringio
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checktool = common.checktool
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commit = common.commit
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converter_source = common.converter_source
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makedatetimestamp = common.makedatetimestamp
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NoRepo = common.NoRepo
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class convert_cvs(converter_source):
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def __init__(self, ui, repotype, path, revs=None):
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super(convert_cvs, self).__init__(ui, repotype, path, revs=revs)
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cvs = os.path.join(path, b"CVS")
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if not os.path.exists(cvs):
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raise NoRepo(_(b"%s does not look like a CVS checkout") % path)
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checktool(b'cvs')
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self.changeset = None
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self.files = {}
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self.tags = {}
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self.lastbranch = {}
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self.socket = None
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self.cvsroot = open(os.path.join(cvs, b"Root"), b'rb').read()[:-1]
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self.cvsrepo = open(os.path.join(cvs, b"Repository"), b'rb').read()[:-1]
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self.encoding = encoding.encoding
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self._connect()
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def _parse(self):
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if self.changeset is not None:
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return
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self.changeset = {}
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maxrev = 0
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if self.revs:
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if len(self.revs) > 1:
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raise error.Abort(
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_(
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b'cvs source does not support specifying '
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b'multiple revs'
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)
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)
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# TODO: handle tags
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try:
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# patchset number?
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maxrev = int(self.revs[0])
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except ValueError:
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raise error.Abort(
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_(b'revision %s is not a patchset number') % self.revs[0]
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)
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d = encoding.getcwd()
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try:
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os.chdir(self.path)
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cache = b'update'
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if not self.ui.configbool(b'convert', b'cvsps.cache'):
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cache = None
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db = cvsps.createlog(self.ui, cache=cache)
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db = cvsps.createchangeset(
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self.ui,
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db,
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fuzz=int(self.ui.config(b'convert', b'cvsps.fuzz')),
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mergeto=self.ui.config(b'convert', b'cvsps.mergeto'),
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mergefrom=self.ui.config(b'convert', b'cvsps.mergefrom'),
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)
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for cs in db:
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if maxrev and cs.id > maxrev:
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break
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id = b"%d" % cs.id
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cs.author = self.recode(cs.author)
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self.lastbranch[cs.branch] = id
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cs.comment = self.recode(cs.comment)
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if self.ui.configbool(b'convert', b'localtimezone'):
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cs.date = makedatetimestamp(cs.date[0])
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date = dateutil.datestr(cs.date, b'%Y-%m-%d %H:%M:%S %1%2')
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self.tags.update(dict.fromkeys(cs.tags, id))
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files = {}
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for f in cs.entries:
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files[f.file] = b"%s%s" % (
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b'.'.join([(b"%d" % x) for x in f.revision]),
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[b'', b'(DEAD)'][f.dead],
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)
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# add current commit to set
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c = commit(
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author=cs.author,
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date=date,
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parents=[(b"%d" % p.id) for p in cs.parents],
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desc=cs.comment,
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branch=cs.branch or b'',
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)
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self.changeset[id] = c
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self.files[id] = files
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self.heads = self.lastbranch.values()
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finally:
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os.chdir(d)
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def _connect(self):
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root = self.cvsroot
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conntype = None
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user, host = None, None
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cmd = [b'cvs', b'server']
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self.ui.status(_(b"connecting to %s\n") % root)
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if root.startswith(b":pserver:"):
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root = root[9:]
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m = re.match(
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br'(?:(.*?)(?::(.*?))?@)?([^:/]*)(?::(\d*))?(.*)', root
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)
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if m:
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conntype = b"pserver"
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user, passw, serv, port, root = m.groups()
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if not user:
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user = b"anonymous"
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if not port:
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port = 2401
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else:
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port = int(port)
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format0 = b":pserver:%s@%s:%s" % (user, serv, root)
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format1 = b":pserver:%s@%s:%d%s" % (user, serv, port, root)
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if not passw:
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passw = b"A"
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cvspass = os.path.expanduser(b"~/.cvspass")
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try:
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pf = open(cvspass, b'rb')
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for line in pf.read().splitlines():
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part1, part2 = line.split(b' ', 1)
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# /1 :pserver:user@example.com:2401/cvsroot/foo
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# Ah<Z
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if part1 == b'/1':
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part1, part2 = part2.split(b' ', 1)
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format = format1
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# :pserver:user@example.com:/cvsroot/foo Ah<Z
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else:
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format = format0
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if part1 == format:
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passw = part2
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break
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pf.close()
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except IOError as inst:
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if inst.errno != errno.ENOENT:
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if not getattr(inst, 'filename', None):
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inst.filename = cvspass
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raise
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sck = socket.socket()
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sck.connect((serv, port))
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sck.send(
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b"\n".join(
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[
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b"BEGIN AUTH REQUEST",
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root,
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user,
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passw,
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b"END AUTH REQUEST",
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b"",
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]
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)
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)
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if sck.recv(128) != b"I LOVE YOU\n":
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raise error.Abort(_(b"CVS pserver authentication failed"))
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self.writep = self.readp = sck.makefile('rwb')
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if not conntype and root.startswith(b":local:"):
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conntype = b"local"
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root = root[7:]
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if not conntype:
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# :ext:user@host/home/user/path/to/cvsroot
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if root.startswith(b":ext:"):
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root = root[5:]
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m = re.match(br'(?:([^@:/]+)@)?([^:/]+):?(.*)', root)
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# Do not take Windows path "c:\foo\bar" for a connection strings
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if os.path.isdir(root) or not m:
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conntype = b"local"
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else:
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conntype = b"rsh"
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user, host, root = m.group(1), m.group(2), m.group(3)
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if conntype != b"pserver":
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if conntype == b"rsh":
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rsh = encoding.environ.get(b"CVS_RSH") or b"ssh"
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if user:
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cmd = [rsh, b'-l', user, host] + cmd
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else:
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cmd = [rsh, host] + cmd
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# popen2 does not support argument lists under Windows
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cmd = b' '.join(procutil.shellquote(arg) for arg in cmd)
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self.writep, self.readp = procutil.popen2(cmd)
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self.realroot = root
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self.writep.write(b"Root %s\n" % root)
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self.writep.write(
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b"Valid-responses ok error Valid-requests Mode"
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b" M Mbinary E Checked-in Created Updated"
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b" Merged Removed\n"
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)
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self.writep.write(b"valid-requests\n")
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self.writep.flush()
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r = self.readp.readline()
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if not r.startswith(b"Valid-requests"):
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raise error.Abort(
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_(
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b'unexpected response from CVS server '
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b'(expected "Valid-requests", but got %r)'
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)
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% r
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)
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if b"UseUnchanged" in r:
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self.writep.write(b"UseUnchanged\n")
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self.writep.flush()
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self.readp.readline()
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def getheads(self):
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self._parse()
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return self.heads
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def getfile(self, name, rev):
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def chunkedread(fp, count):
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# file-objects returned by socket.makefile() do not handle
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# large read() requests very well.
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chunksize = 65536
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output = stringio()
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while count > 0:
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data = fp.read(min(count, chunksize))
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if not data:
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raise error.Abort(
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_(b"%d bytes missing from remote file") % count
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)
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count -= len(data)
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output.write(data)
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return output.getvalue()
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self._parse()
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if rev.endswith(b"(DEAD)"):
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return None, None
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args = (b"-N -P -kk -r %s --" % rev).split()
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args.append(self.cvsrepo + b'/' + name)
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for x in args:
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self.writep.write(b"Argument %s\n" % x)
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self.writep.write(b"Directory .\n%s\nco\n" % self.realroot)
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self.writep.flush()
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data = b""
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mode = None
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while True:
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line = self.readp.readline()
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if line.startswith(b"Created ") or line.startswith(b"Updated "):
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self.readp.readline() # path
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self.readp.readline() # entries
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mode = self.readp.readline()[:-1]
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count = int(self.readp.readline()[:-1])
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data = chunkedread(self.readp, count)
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elif line.startswith(b" "):
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data += line[1:]
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elif line.startswith(b"M "):
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pass
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elif line.startswith(b"Mbinary "):
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count = int(self.readp.readline()[:-1])
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data = chunkedread(self.readp, count)
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else:
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if line == b"ok\n":
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if mode is None:
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raise error.Abort(_(b'malformed response from CVS'))
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return (data, b"x" in mode and b"x" or b"")
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elif line.startswith(b"E "):
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self.ui.warn(_(b"cvs server: %s\n") % line[2:])
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elif line.startswith(b"Remove"):
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self.readp.readline()
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else:
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raise error.Abort(_(b"unknown CVS response: %s") % line)
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def getchanges(self, rev, full):
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if full:
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raise error.Abort(_(b"convert from cvs does not support --full"))
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self._parse()
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return sorted(self.files[rev].items()), {}, set()
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def getcommit(self, rev):
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self._parse()
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return self.changeset[rev]
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def gettags(self):
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self._parse()
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return self.tags
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def getchangedfiles(self, rev, i):
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self._parse()
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return sorted(self.files[rev])
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