ref: 3a7146f8bf32e57d1989885039277449c3a70836
dir: /sys/lib/python/hgext/convert/cvs.py/
# cvs.py: CVS conversion code inspired by hg-cvs-import and git-cvsimport
#
# Copyright 2005-2009 Matt Mackall <[email protected]> and others
#
# This software may be used and distributed according to the terms of the
# GNU General Public License version 2, incorporated herein by reference.
import os, locale, re, socket, errno
from cStringIO import StringIO
from mercurial import util
from mercurial.i18n import _
from common import NoRepo, commit, converter_source, checktool
import cvsps
class convert_cvs(converter_source):
def __init__(self, ui, path, rev=None):
super(convert_cvs, self).__init__(ui, path, rev=rev)
cvs = os.path.join(path, "CVS")
if not os.path.exists(cvs):
raise NoRepo("%s does not look like a CVS checkout" % path)
checktool('cvs')
self.cmd = ui.config('convert', 'cvsps', 'builtin')
cvspsexe = self.cmd.split(None, 1)[0]
self.builtin = cvspsexe == 'builtin'
if not self.builtin:
ui.warn(_('warning: support for external cvsps is deprecated and '
'will be removed in Mercurial 1.4\n'))
if not self.builtin:
checktool(cvspsexe)
self.changeset = None
self.files = {}
self.tags = {}
self.lastbranch = {}
self.parent = {}
self.socket = None
self.cvsroot = open(os.path.join(cvs, "Root")).read()[:-1]
self.cvsrepo = open(os.path.join(cvs, "Repository")).read()[:-1]
self.encoding = locale.getpreferredencoding()
self._connect()
def _parse(self):
if self.changeset is not None:
return
self.changeset = {}
maxrev = 0
cmd = self.cmd
if self.rev:
# TODO: handle tags
try:
# patchset number?
maxrev = int(self.rev)
except ValueError:
try:
# date
util.parsedate(self.rev, ['%Y/%m/%d %H:%M:%S'])
cmd = '%s -d "1970/01/01 00:00:01" -d "%s"' % (cmd, self.rev)
except util.Abort:
raise util.Abort(_('revision %s is not a patchset number or date') % self.rev)
d = os.getcwd()
try:
os.chdir(self.path)
id = None
state = 0
filerevids = {}
if self.builtin:
# builtin cvsps code
self.ui.status(_('using builtin cvsps\n'))
cache = 'update'
if not self.ui.configbool('convert', 'cvsps.cache', True):
cache = None
db = cvsps.createlog(self.ui, cache=cache)
db = cvsps.createchangeset(self.ui, db,
fuzz=int(self.ui.config('convert', 'cvsps.fuzz', 60)),
mergeto=self.ui.config('convert', 'cvsps.mergeto', None),
mergefrom=self.ui.config('convert', 'cvsps.mergefrom', None))
for cs in db:
if maxrev and cs.id>maxrev:
break
id = str(cs.id)
cs.author = self.recode(cs.author)
self.lastbranch[cs.branch] = id
cs.comment = self.recode(cs.comment)
date = util.datestr(cs.date)
self.tags.update(dict.fromkeys(cs.tags, id))
files = {}
for f in cs.entries:
files[f.file] = "%s%s" % ('.'.join([str(x) for x in f.revision]),
['', '(DEAD)'][f.dead])
# add current commit to set
c = commit(author=cs.author, date=date,
parents=[str(p.id) for p in cs.parents],
desc=cs.comment, branch=cs.branch or '')
self.changeset[id] = c
self.files[id] = files
else:
# external cvsps
for l in util.popen(cmd):
if state == 0: # header
if l.startswith("PatchSet"):
id = l[9:-2]
if maxrev and int(id) > maxrev:
# ignore everything
state = 3
elif l.startswith("Date:"):
date = util.parsedate(l[6:-1], ["%Y/%m/%d %H:%M:%S"])
date = util.datestr(date)
elif l.startswith("Branch:"):
branch = l[8:-1]
self.parent[id] = self.lastbranch.get(branch, 'bad')
self.lastbranch[branch] = id
elif l.startswith("Ancestor branch:"):
ancestor = l[17:-1]
# figure out the parent later
self.parent[id] = self.lastbranch[ancestor]
elif l.startswith("Author:"):
author = self.recode(l[8:-1])
elif l.startswith("Tag:") or l.startswith("Tags:"):
t = l[l.index(':')+1:]
t = [ut.strip() for ut in t.split(',')]
if (len(t) > 1) or (t[0] and (t[0] != "(none)")):
self.tags.update(dict.fromkeys(t, id))
elif l.startswith("Log:"):
# switch to gathering log
state = 1
log = ""
elif state == 1: # log
if l == "Members: \n":
# switch to gathering members
files = {}
oldrevs = []
log = self.recode(log[:-1])
state = 2
else:
# gather log
log += l
elif state == 2: # members
if l == "\n": # start of next entry
state = 0
p = [self.parent[id]]
if id == "1":
p = []
if branch == "HEAD":
branch = ""
if branch:
latest = 0
# the last changeset that contains a base
# file is our parent
for r in oldrevs:
latest = max(filerevids.get(r, 0), latest)
if latest:
p = [latest]
# add current commit to set
c = commit(author=author, date=date, parents=p,
desc=log, branch=branch)
self.changeset[id] = c
self.files[id] = files
else:
colon = l.rfind(':')
file = l[1:colon]
rev = l[colon+1:-2]
oldrev, rev = rev.split("->")
files[file] = rev
# save some information for identifying branch points
oldrevs.append("%s:%s" % (oldrev, file))
filerevids["%s:%s" % (rev, file)] = id
elif state == 3:
# swallow all input
continue
self.heads = self.lastbranch.values()
finally:
os.chdir(d)
def _connect(self):
root = self.cvsroot
conntype = None
user, host = None, None
cmd = ['cvs', 'server']
self.ui.status(_("connecting to %s\n") % root)
if root.startswith(":pserver:"):
root = root[9:]
m = re.match(r'(?:(.*?)(?::(.*?))?@)?([^:\/]*)(?::(\d*))?(.*)',
root)
if m:
conntype = "pserver"
user, passw, serv, port, root = m.groups()
if not user:
user = "anonymous"
if not port:
port = 2401
else:
port = int(port)
format0 = ":pserver:%s@%s:%s" % (user, serv, root)
format1 = ":pserver:%s@%s:%d%s" % (user, serv, port, root)
if not passw:
passw = "A"
cvspass = os.path.expanduser("~/.cvspass")
try:
pf = open(cvspass)
for line in pf.read().splitlines():
part1, part2 = line.split(' ', 1)
if part1 == '/1':
# /1 :pserver:[email protected]:2401/cvsroot/foo Ah<Z
part1, part2 = part2.split(' ', 1)
format = format1
else:
# :pserver:[email protected]:/cvsroot/foo Ah<Z
format = format0
if part1 == format:
passw = part2
break
pf.close()
except IOError, inst:
if inst.errno != errno.ENOENT:
if not getattr(inst, 'filename', None):
inst.filename = cvspass
raise
sck = socket.socket()
sck.connect((serv, port))
sck.send("\n".join(["BEGIN AUTH REQUEST", root, user, passw,
"END AUTH REQUEST", ""]))
if sck.recv(128) != "I LOVE YOU\n":
raise util.Abort(_("CVS pserver authentication failed"))
self.writep = self.readp = sck.makefile('r+')
if not conntype and root.startswith(":local:"):
conntype = "local"
root = root[7:]
if not conntype:
# :ext:user@host/home/user/path/to/cvsroot
if root.startswith(":ext:"):
root = root[5:]
m = re.match(r'(?:([^@:/]+)@)?([^:/]+):?(.*)', root)
# Do not take Windows path "c:\foo\bar" for a connection strings
if os.path.isdir(root) or not m:
conntype = "local"
else:
conntype = "rsh"
user, host, root = m.group(1), m.group(2), m.group(3)
if conntype != "pserver":
if conntype == "rsh":
rsh = os.environ.get("CVS_RSH") or "ssh"
if user:
cmd = [rsh, '-l', user, host] + cmd
else:
cmd = [rsh, host] + cmd
# popen2 does not support argument lists under Windows
cmd = [util.shellquote(arg) for arg in cmd]
cmd = util.quotecommand(' '.join(cmd))
self.writep, self.readp = util.popen2(cmd)
self.realroot = root
self.writep.write("Root %s\n" % root)
self.writep.write("Valid-responses ok error Valid-requests Mode"
" M Mbinary E Checked-in Created Updated"
" Merged Removed\n")
self.writep.write("valid-requests\n")
self.writep.flush()
r = self.readp.readline()
if not r.startswith("Valid-requests"):
raise util.Abort(_("unexpected response from CVS server "
"(expected \"Valid-requests\", but got %r)")
% r)
if "UseUnchanged" in r:
self.writep.write("UseUnchanged\n")
self.writep.flush()
r = self.readp.readline()
def getheads(self):
self._parse()
return self.heads
def _getfile(self, name, rev):
def chunkedread(fp, count):
# file-objects returned by socked.makefile() do not handle
# large read() requests very well.
chunksize = 65536
output = StringIO()
while count > 0:
data = fp.read(min(count, chunksize))
if not data:
raise util.Abort(_("%d bytes missing from remote file") % count)
count -= len(data)
output.write(data)
return output.getvalue()
if rev.endswith("(DEAD)"):
raise IOError
args = ("-N -P -kk -r %s --" % rev).split()
args.append(self.cvsrepo + '/' + name)
for x in args:
self.writep.write("Argument %s\n" % x)
self.writep.write("Directory .\n%s\nco\n" % self.realroot)
self.writep.flush()
data = ""
while 1:
line = self.readp.readline()
if line.startswith("Created ") or line.startswith("Updated "):
self.readp.readline() # path
self.readp.readline() # entries
mode = self.readp.readline()[:-1]
count = int(self.readp.readline()[:-1])
data = chunkedread(self.readp, count)
elif line.startswith(" "):
data += line[1:]
elif line.startswith("M "):
pass
elif line.startswith("Mbinary "):
count = int(self.readp.readline()[:-1])
data = chunkedread(self.readp, count)
else:
if line == "ok\n":
return (data, "x" in mode and "x" or "")
elif line.startswith("E "):
self.ui.warn(_("cvs server: %s\n") % line[2:])
elif line.startswith("Remove"):
self.readp.readline()
else:
raise util.Abort(_("unknown CVS response: %s") % line)
def getfile(self, file, rev):
self._parse()
data, mode = self._getfile(file, rev)
self.modecache[(file, rev)] = mode
return data
def getmode(self, file, rev):
return self.modecache[(file, rev)]
def getchanges(self, rev):
self._parse()
self.modecache = {}
return sorted(self.files[rev].iteritems()), {}
def getcommit(self, rev):
self._parse()
return self.changeset[rev]
def gettags(self):
self._parse()
return self.tags
def getchangedfiles(self, rev, i):
self._parse()
return sorted(self.files[rev])