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# CVS conversion code inspired by hg-cvs-import and git-cvsimport
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import os, locale, re, socket, errno
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from cStringIO import StringIO
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from mercurial import util
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from mercurial.i18n import _
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from common import NoRepo, commit, converter_source, checktool
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import cvsps
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class convert_cvs(converter_source):
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def __init__(self, ui, path, rev=None):
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super(convert_cvs, self).__init__(ui, path, rev=rev)
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cvs = os.path.join(path, "CVS")
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if not os.path.exists(cvs):
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raise NoRepo("%s does not look like a CVS checkout" % path)
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checktool('cvs')
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self.cmd = ui.config('convert', 'cvsps', 'builtin')
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cvspsexe = self.cmd.split(None, 1)[0]
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self.builtin = cvspsexe == 'builtin'
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if not self.builtin:
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checktool(cvspsexe)
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self.changeset = {}
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self.files = {}
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self.tags = {}
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self.lastbranch = {}
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self.parent = {}
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self.socket = None
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self.cvsroot = file(os.path.join(cvs, "Root")).read()[:-1]
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self.cvsrepo = file(os.path.join(cvs, "Repository")).read()[:-1]
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self.encoding = locale.getpreferredencoding()
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self._parse(ui)
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self._connect()
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def _parse(self, ui):
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if self.changeset:
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return
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maxrev = 0
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cmd = self.cmd
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if self.rev:
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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.rev)
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except ValueError:
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try:
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# date
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util.parsedate(self.rev, ['%Y/%m/%d %H:%M:%S'])
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cmd = '%s -d "1970/01/01 00:00:01" -d "%s"' % (cmd, self.rev)
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except util.Abort:
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raise util.Abort(_('revision %s is not a patchset number or date') % self.rev)
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d = os.getcwd()
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try:
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os.chdir(self.path)
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id = None
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state = 0
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filerevids = {}
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if self.builtin:
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# builtin cvsps code
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ui.status(_('using builtin cvsps\n'))
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db = cvsps.createlog(ui, cache='update')
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db = cvsps.createchangeset(ui, db,
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fuzz=int(ui.config('convert', 'cvsps.fuzz', 60)),
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mergeto=ui.config('convert', 'cvsps.mergeto', None),
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mergefrom=ui.config('convert', 'cvsps.mergefrom', None))
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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 = str(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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date = util.datestr(cs.date)
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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] = "%s%s" % ('.'.join([str(x) for x in f.revision]),
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['', '(DEAD)'][f.dead])
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# add current commit to set
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c = commit(author=cs.author, date=date,
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parents=[str(p.id) for p in cs.parents],
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desc=cs.comment, branch=cs.branch or '')
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self.changeset[id] = c
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self.files[id] = files
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else:
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# external cvsps
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for l in util.popen(cmd):
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if state == 0: # header
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if l.startswith("PatchSet"):
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id = l[9:-2]
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if maxrev and int(id) > maxrev:
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# ignore everything
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state = 3
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elif l.startswith("Date:"):
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date = util.parsedate(l[6:-1], ["%Y/%m/%d %H:%M:%S"])
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date = util.datestr(date)
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elif l.startswith("Branch:"):
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branch = l[8:-1]
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self.parent[id] = self.lastbranch.get(branch, 'bad')
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self.lastbranch[branch] = id
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elif l.startswith("Ancestor branch:"):
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ancestor = l[17:-1]
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# figure out the parent later
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self.parent[id] = self.lastbranch[ancestor]
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elif l.startswith("Author:"):
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author = self.recode(l[8:-1])
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elif l.startswith("Tag:") or l.startswith("Tags:"):
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t = l[l.index(':')+1:]
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t = [ut.strip() for ut in t.split(',')]
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if (len(t) > 1) or (t[0] and (t[0] != "(none)")):
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self.tags.update(dict.fromkeys(t, id))
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elif l.startswith("Log:"):
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# switch to gathering log
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state = 1
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log = ""
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elif state == 1: # log
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if l == "Members: \n":
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# switch to gathering members
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files = {}
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oldrevs = []
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log = self.recode(log[:-1])
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state = 2
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else:
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# gather log
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log += l
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elif state == 2: # members
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if l == "\n": # start of next entry
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state = 0
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p = [self.parent[id]]
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if id == "1":
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p = []
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if branch == "HEAD":
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branch = ""
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if branch:
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latest = 0
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# the last changeset that contains a base
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# file is our parent
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for r in oldrevs:
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latest = max(filerevids.get(r, 0), latest)
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if latest:
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p = [latest]
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# add current commit to set
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c = commit(author=author, date=date, parents=p,
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desc=log, branch=branch)
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self.changeset[id] = c
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self.files[id] = files
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else:
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colon = l.rfind(':')
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file = l[1:colon]
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rev = l[colon+1:-2]
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oldrev, rev = rev.split("->")
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files[file] = rev
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# save some information for identifying branch points
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oldrevs.append("%s:%s" % (oldrev, file))
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filerevids["%s:%s" % (rev, file)] = id
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elif state == 3:
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# swallow all input
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continue
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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 = ['cvs', 'server']
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self.ui.status(_("connecting to %s\n") % root)
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if root.startswith(":pserver:"):
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root = root[9:]
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m = re.match(r'(?:(.*?)(?::(.*?))?@)?([^:\/]*)(?::(\d*))?(.*)',
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root)
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if m:
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conntype = "pserver"
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user, passw, serv, port, root = m.groups()
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if not user:
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user = "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 = ":pserver:%s@%s:%s" % (user, serv, root)
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format1 = ":pserver:%s@%s:%d%s" % (user, serv, port, root)
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if not passw:
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passw = "A"
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cvspass = os.path.expanduser("~/.cvspass")
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try:
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pf = open(cvspass)
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for line in pf.read().splitlines():
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part1, part2 = line.split(' ', 1)
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if part1 == '/1':
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# /1 :pserver:user@example.com:2401/cvsroot/foo Ah<Z
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part1, part2 = part2.split(' ', 1)
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format = format1
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else:
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# :pserver:user@example.com:/cvsroot/foo Ah<Z
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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, 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("\n".join(["BEGIN AUTH REQUEST", root, user, passw,
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"END AUTH REQUEST", ""]))
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if sck.recv(128) != "I LOVE YOU\n":
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raise util.Abort(_("CVS pserver authentication failed"))
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self.writep = self.readp = sck.makefile('r+')
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if not conntype and root.startswith(":local:"):
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conntype = "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(":ext:"):
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root = root[5:]
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m = re.match(r'(?:([^@:/]+)@)?([^:/]+):?(.*)', 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 = "local"
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else:
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conntype = "rsh"
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user, host, root = m.group(1), m.group(2), m.group(3)
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if conntype != "pserver":
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if conntype == "rsh":
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rsh = os.environ.get("CVS_RSH") or "ssh"
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if user:
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cmd = [rsh, '-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 = [util.shellquote(arg) for arg in cmd]
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cmd = util.quotecommand(' '.join(cmd))
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self.writep, self.readp = util.popen2(cmd, 'b')
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self.realroot = root
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self.writep.write("Root %s\n" % root)
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self.writep.write("Valid-responses ok error Valid-requests Mode"
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" M Mbinary E Checked-in Created Updated"
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" Merged Removed\n")
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self.writep.write("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("Valid-requests"):
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raise util.Abort(_("server sucks"))
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if "UseUnchanged" in r:
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self.writep.write("UseUnchanged\n")
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self.writep.flush()
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r = self.readp.readline()
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def getheads(self):
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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 socked.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 util.Abort(_("%d bytes missing from remote file") % count)
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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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if rev.endswith("(DEAD)"):
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raise IOError
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args = ("-N -P -kk -r %s --" % rev).split()
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args.append(self.cvsrepo + '/' + name)
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for x in args:
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self.writep.write("Argument %s\n" % x)
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self.writep.write("Directory .\n%s\nco\n" % self.realroot)
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self.writep.flush()
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data = ""
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while 1:
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line = self.readp.readline()
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if line.startswith("Created ") or line.startswith("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(" "):
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data += line[1:]
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elif line.startswith("M "):
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pass
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elif line.startswith("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 == "ok\n":
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return (data, "x" in mode and "x" or "")
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elif line.startswith("E "):
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self.ui.warn(_("cvs server: %s\n") % line[2:])
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elif line.startswith("Remove"):
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l = self.readp.readline()
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else:
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raise util.Abort(_("unknown CVS response: %s") % line)
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def getfile(self, file, rev):
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data, mode = self._getfile(file, rev)
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self.modecache[(file, rev)] = mode
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return data
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def getmode(self, file, rev):
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return self.modecache[(file, rev)]
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def getchanges(self, rev):
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self.modecache = {}
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return util.sort(self.files[rev].items()), {}
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def getcommit(self, rev):
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return self.changeset[rev]
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def gettags(self):
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return self.tags
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def getchangedfiles(self, rev, i):
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return util.sort(self.files[rev].keys())
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