ref: a7b06e0fdd02355b2dc9ce2349afbd25bf8287a3
dir: /sys/src/cmd/hg/hgext/convert/p4.py/
#
# Perforce source for convert extension.
#
# Copyright 2009, Frank Kingswood <frank@kingswood-consulting.co.uk>
#
# This software may be used and distributed according to the terms of the
# GNU General Public License version 2, incorporated herein by reference.
#
from mercurial import util
from mercurial.i18n import _
from common import commit, converter_source, checktool, NoRepo
import marshal
import re
def loaditer(f):
"Yield the dictionary objects generated by p4"
try:
while True:
d = marshal.load(f)
if not d:
break
yield d
except EOFError:
pass
class p4_source(converter_source):
def __init__(self, ui, path, rev=None):
super(p4_source, self).__init__(ui, path, rev=rev)
if "/" in path and not path.startswith('//'):
raise NoRepo('%s does not look like a P4 repo' % path)
checktool('p4', abort=False)
self.p4changes = {}
self.heads = {}
self.changeset = {}
self.files = {}
self.tags = {}
self.lastbranch = {}
self.parent = {}
self.encoding = "latin_1"
self.depotname = {} # mapping from local name to depot name
self.modecache = {}
self.re_type = re.compile("([a-z]+)?(text|binary|symlink|apple|resource|unicode|utf\d+)(\+\w+)?$")
self.re_keywords = re.compile(r"\$(Id|Header|Date|DateTime|Change|File|Revision|Author):[^$\n]*\$")
self.re_keywords_old = re.compile("\$(Id|Header):[^$\n]*\$")
self._parse(ui, path)
def _parse_view(self, path):
"Read changes affecting the path"
cmd = 'p4 -G changes -s submitted "%s"' % path
stdout = util.popen(cmd)
for d in loaditer(stdout):
c = d.get("change", None)
if c:
self.p4changes[c] = True
def _parse(self, ui, path):
"Prepare list of P4 filenames and revisions to import"
ui.status(_('reading p4 views\n'))
# read client spec or view
if "/" in path:
self._parse_view(path)
if path.startswith("//") and path.endswith("/..."):
views = {path[:-3]:""}
else:
views = {"//": ""}
else:
cmd = 'p4 -G client -o "%s"' % path
clientspec = marshal.load(util.popen(cmd))
views = {}
for client in clientspec:
if client.startswith("View"):
sview, cview = clientspec[client].split()
self._parse_view(sview)
if sview.endswith("...") and cview.endswith("..."):
sview = sview[:-3]
cview = cview[:-3]
cview = cview[2:]
cview = cview[cview.find("/") + 1:]
views[sview] = cview
# list of changes that affect our source files
self.p4changes = self.p4changes.keys()
self.p4changes.sort(key=int)
# list with depot pathnames, longest first
vieworder = views.keys()
vieworder.sort(key=len, reverse=True)
# handle revision limiting
startrev = self.ui.config('convert', 'p4.startrev', default=0)
self.p4changes = [x for x in self.p4changes
if ((not startrev or int(x) >= int(startrev)) and
(not self.rev or int(x) <= int(self.rev)))]
# now read the full changelists to get the list of file revisions
ui.status(_('collecting p4 changelists\n'))
lastid = None
for change in self.p4changes:
cmd = "p4 -G describe %s" % change
stdout = util.popen(cmd)
d = marshal.load(stdout)
desc = self.recode(d["desc"])
shortdesc = desc.split("\n", 1)[0]
t = '%s %s' % (d["change"], repr(shortdesc)[1:-1])
ui.status(util.ellipsis(t, 80) + '\n')
if lastid:
parents = [lastid]
else:
parents = []
date = (int(d["time"]), 0) # timezone not set
c = commit(author=self.recode(d["user"]), date=util.datestr(date),
parents=parents, desc=desc, branch='', extra={"p4": change})
files = []
i = 0
while ("depotFile%d" % i) in d and ("rev%d" % i) in d:
oldname = d["depotFile%d" % i]
filename = None
for v in vieworder:
if oldname.startswith(v):
filename = views[v] + oldname[len(v):]
break
if filename:
files.append((filename, d["rev%d" % i]))
self.depotname[filename] = oldname
i += 1
self.changeset[change] = c
self.files[change] = files
lastid = change
if lastid:
self.heads = [lastid]
def getheads(self):
return self.heads
def getfile(self, name, rev):
cmd = 'p4 -G print "%s#%s"' % (self.depotname[name], rev)
stdout = util.popen(cmd)
mode = None
contents = ""
keywords = None
for d in loaditer(stdout):
code = d["code"]
data = d.get("data")
if code == "error":
raise IOError(d["generic"], data)
elif code == "stat":
p4type = self.re_type.match(d["type"])
if p4type:
mode = ""
flags = (p4type.group(1) or "") + (p4type.group(3) or "")
if "x" in flags:
mode = "x"
if p4type.group(2) == "symlink":
mode = "l"
if "ko" in flags:
keywords = self.re_keywords_old
elif "k" in flags:
keywords = self.re_keywords
elif code == "text" or code == "binary":
contents += data
if mode is None:
raise IOError(0, "bad stat")
self.modecache[(name, rev)] = mode
if keywords:
contents = keywords.sub("$\\1$", contents)
if mode == "l" and contents.endswith("\n"):
contents = contents[:-1]
return contents
def getmode(self, name, rev):
return self.modecache[(name, rev)]
def getchanges(self, rev):
return self.files[rev], {}
def getcommit(self, rev):
return self.changeset[rev]
def gettags(self):
return self.tags
def getchangedfiles(self, rev, i):
return sorted([x[0] for x in self.files[rev]])