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# Perforce source for convert extension.
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#
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# Copyright 2009, Frank Kingswood <frank@kingswood-consulting.co.uk>
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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 marshal
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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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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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stringutil,
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)
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from . import common
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def loaditer(f):
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"""Yield the dictionary objects generated by p4"""
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try:
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while True:
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d = marshal.load(f)
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if not d:
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break
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yield d
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except EOFError:
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pass
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def decodefilename(filename):
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"""Perforce escapes special characters @, #, *, or %
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with %40, %23, %2A, or %25 respectively
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>>> decodefilename(b'portable-net45%252Bnetcore45%252Bwp8%252BMonoAndroid')
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'portable-net45%2Bnetcore45%2Bwp8%2BMonoAndroid'
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>>> decodefilename(b'//Depot/Directory/%2525/%2523/%23%40.%2A')
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'//Depot/Directory/%25/%23/#@.*'
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"""
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replacements = [
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(b'%2A', b'*'),
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(b'%23', b'#'),
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(b'%40', b'@'),
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(b'%25', b'%'),
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]
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for k, v in replacements:
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filename = filename.replace(k, v)
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return filename
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class p4_source(common.converter_source):
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def __init__(self, ui, repotype, path, revs=None):
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# avoid import cycle
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from . import convcmd
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super(p4_source, self).__init__(ui, repotype, path, revs=revs)
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if b"/" in path and not path.startswith(b'//'):
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raise common.NoRepo(
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_(b'%s does not look like a P4 repository') % path
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)
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common.checktool(b'p4', abort=False)
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self.revmap = {}
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self.encoding = self.ui.config(
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b'convert', b'p4.encoding', convcmd.orig_encoding
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)
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self.re_type = re.compile(
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br"([a-z]+)?(text|binary|symlink|apple|resource|unicode|utf\d+)"
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br"(\+\w+)?$"
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)
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self.re_keywords = re.compile(
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br"\$(Id|Header|Date|DateTime|Change|File|Revision|Author)"
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br":[^$\n]*\$"
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)
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self.re_keywords_old = re.compile(br"\$(Id|Header):[^$\n]*\$")
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if revs and len(revs) > 1:
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raise error.Abort(
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_(
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b"p4 source does not support specifying "
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b"multiple revisions"
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)
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)
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def setrevmap(self, revmap):
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"""Sets the parsed revmap dictionary.
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Revmap stores mappings from a source revision to a target revision.
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It is set in convertcmd.convert and provided by the user as a file
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on the commandline.
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Revisions in the map are considered beeing present in the
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repository and ignored during _parse(). This allows for incremental
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imports if a revmap is provided.
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"""
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self.revmap = revmap
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def _parse_view(self, path):
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"""Read changes affecting the path"""
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cmd = b'p4 -G changes -s submitted %s' % procutil.shellquote(path)
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stdout = procutil.popen(cmd, mode=b'rb')
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p4changes = {}
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for d in loaditer(stdout):
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c = d.get(b"change", None)
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if c:
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p4changes[c] = True
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return p4changes
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def _parse(self, ui, path):
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"""Prepare list of P4 filenames and revisions to import"""
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p4changes = {}
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changeset = {}
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files_map = {}
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copies_map = {}
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localname = {}
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depotname = {}
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heads = []
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ui.status(_(b'reading p4 views\n'))
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# read client spec or view
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if b"/" in path:
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p4changes.update(self._parse_view(path))
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if path.startswith(b"//") and path.endswith(b"/..."):
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views = {path[:-3]: b""}
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else:
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views = {b"//": b""}
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else:
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cmd = b'p4 -G client -o %s' % procutil.shellquote(path)
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clientspec = marshal.load(procutil.popen(cmd, mode=b'rb'))
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views = {}
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for client in clientspec:
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if client.startswith(b"View"):
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sview, cview = clientspec[client].split()
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p4changes.update(self._parse_view(sview))
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if sview.endswith(b"...") and cview.endswith(b"..."):
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sview = sview[:-3]
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cview = cview[:-3]
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cview = cview[2:]
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cview = cview[cview.find(b"/") + 1 :]
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views[sview] = cview
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# list of changes that affect our source files
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p4changes = sorted(p4changes.keys(), key=int)
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# list with depot pathnames, longest first
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vieworder = sorted(views.keys(), key=len, reverse=True)
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# handle revision limiting
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startrev = self.ui.config(b'convert', b'p4.startrev')
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# now read the full changelists to get the list of file revisions
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ui.status(_(b'collecting p4 changelists\n'))
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lastid = None
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for change in p4changes:
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if startrev and int(change) < int(startrev):
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continue
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if self.revs and int(change) > int(self.revs[0]):
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continue
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if change in self.revmap:
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# Ignore already present revisions, but set the parent pointer.
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lastid = change
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continue
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if lastid:
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parents = [lastid]
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else:
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parents = []
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d = self._fetch_revision(change)
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c = self._construct_commit(d, parents)
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descarr = c.desc.splitlines(True)
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if len(descarr) > 0:
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shortdesc = descarr[0].rstrip(b'\r\n')
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else:
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shortdesc = b'**empty changelist description**'
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t = b'%s %s' % (c.rev, shortdesc)
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ui.status(stringutil.ellipsis(t, 80) + b'\n')
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files = []
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copies = {}
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copiedfiles = []
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i = 0
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while (b"depotFile%d" % i) in d and (b"rev%d" % i) in d:
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oldname = d[b"depotFile%d" % i]
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filename = None
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for v in vieworder:
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if oldname.lower().startswith(v.lower()):
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filename = decodefilename(views[v] + oldname[len(v) :])
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break
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if filename:
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files.append((filename, d[b"rev%d" % i]))
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depotname[filename] = oldname
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if d.get(b"action%d" % i) == b"move/add":
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copiedfiles.append(filename)
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localname[oldname] = filename
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i += 1
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# Collect information about copied files
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for filename in copiedfiles:
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oldname = depotname[filename]
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flcmd = b'p4 -G filelog %s' % procutil.shellquote(oldname)
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flstdout = procutil.popen(flcmd, mode=b'rb')
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copiedfilename = None
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for d in loaditer(flstdout):
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copiedoldname = None
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i = 0
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while (b"change%d" % i) in d:
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if (
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d[b"change%d" % i] == change
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and d[b"action%d" % i] == b"move/add"
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):
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j = 0
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while (b"file%d,%d" % (i, j)) in d:
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if d[b"how%d,%d" % (i, j)] == b"moved from":
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copiedoldname = d[b"file%d,%d" % (i, j)]
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break
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j += 1
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i += 1
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if copiedoldname and copiedoldname in localname:
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copiedfilename = localname[copiedoldname]
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break
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if copiedfilename:
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copies[filename] = copiedfilename
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else:
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ui.warn(
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_(b"cannot find source for copied file: %s@%s\n")
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% (filename, change)
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)
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changeset[change] = c
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files_map[change] = files
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copies_map[change] = copies
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lastid = change
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if lastid and len(changeset) > 0:
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heads = [lastid]
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return {
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b'changeset': changeset,
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b'files': files_map,
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b'copies': copies_map,
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b'heads': heads,
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b'depotname': depotname,
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}
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@util.propertycache
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def _parse_once(self):
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return self._parse(self.ui, self.path)
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@util.propertycache
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def copies(self):
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return self._parse_once[b'copies']
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@util.propertycache
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def files(self):
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return self._parse_once[b'files']
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@util.propertycache
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def changeset(self):
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return self._parse_once[b'changeset']
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@util.propertycache
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def heads(self):
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return self._parse_once[b'heads']
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@util.propertycache
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def depotname(self):
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return self._parse_once[b'depotname']
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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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cmd = b'p4 -G print %s' % procutil.shellquote(
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b"%s#%s" % (self.depotname[name], rev)
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)
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lasterror = None
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while True:
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stdout = procutil.popen(cmd, mode=b'rb')
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mode = None
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contents = []
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keywords = None
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for d in loaditer(stdout):
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code = d[b"code"]
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data = d.get(b"data")
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if code == b"error":
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# if this is the first time error happened
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# re-attempt getting the file
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if not lasterror:
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lasterror = IOError(d[b"generic"], data)
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# this will exit inner-most for-loop
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break
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else:
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raise lasterror
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elif code == b"stat":
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action = d.get(b"action")
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if action in [b"purge", b"delete", b"move/delete"]:
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return None, None
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p4type = self.re_type.match(d[b"type"])
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if p4type:
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mode = b""
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flags = (p4type.group(1) or b"") + (
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p4type.group(3) or b""
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)
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if b"x" in flags:
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mode = b"x"
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if p4type.group(2) == b"symlink":
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mode = b"l"
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if b"ko" in flags:
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keywords = self.re_keywords_old
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elif b"k" in flags:
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keywords = self.re_keywords
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elif code == b"text" or code == b"binary":
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contents.append(data)
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lasterror = None
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if not lasterror:
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break
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if mode is None:
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return None, None
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contents = b''.join(contents)
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if keywords:
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contents = keywords.sub(b"$\\1$", contents)
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if mode == b"l" and contents.endswith(b"\n"):
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contents = contents[:-1]
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return contents, mode
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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 p4 does not support --full"))
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return self.files[rev], self.copies[rev], set()
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def _construct_commit(self, obj, parents=None):
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"""
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Constructs a common.commit object from an unmarshalled
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`p4 describe` output
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"""
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desc = self.recode(obj.get(b"desc", b""))
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date = (int(obj[b"time"]), 0) # timezone not set
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if parents is None:
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parents = []
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return common.commit(
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author=self.recode(obj[b"user"]),
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date=dateutil.datestr(date, b'%Y-%m-%d %H:%M:%S %1%2'),
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parents=parents,
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desc=desc,
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branch=None,
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rev=obj[b'change'],
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extra={b"p4": obj[b'change'], b"convert_revision": obj[b'change']},
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)
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def _fetch_revision(self, rev):
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"""Return an output of `p4 describe` including author, commit date as
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a dictionary."""
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cmd = b"p4 -G describe -s %s" % rev
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stdout = procutil.popen(cmd, mode=b'rb')
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return marshal.load(stdout)
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def getcommit(self, rev):
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if rev in self.changeset:
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return self.changeset[rev]
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elif rev in self.revmap:
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d = self._fetch_revision(rev)
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return self._construct_commit(d, parents=None)
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raise error.Abort(
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_(b"cannot find %s in the revmap or parsed changesets") % rev
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)
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def gettags(self):
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return {}
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def getchangedfiles(self, rev, i):
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return sorted([x[0] for x in self.files[rev]])
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