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#!/usr/bin/env python
# -- A tool for bidirectional operation between a Perforce depot and git.
# Author: Simon Hausmann <>
# Copyright: 2007 Simon Hausmann <>
# 2007 Trolltech ASA
# License: MIT <>
import sys
if sys.hexversion < 0x02040000:
# The limiter is the subprocess module
sys.stderr.write("git-p4: requires Python 2.4 or later.\n")
import optparse, os, marshal, subprocess, shelve
import tempfile, getopt, os.path, time, platform
import re, shutil
verbose = False
# Only labels/tags matching this will be imported/exported
defaultLabelRegexp = r'[a-zA-Z0-9_\-.]+$'
def p4_build_cmd(cmd):
"""Build a suitable p4 command line.
This consolidates building and returning a p4 command line into one
location. It means that hooking into the environment, or other configuration
can be done more easily.
real_cmd = ["p4"]
user = gitConfig("git-p4.user")
if len(user) > 0:
real_cmd += ["-u",user]
password = gitConfig("git-p4.password")
if len(password) > 0:
real_cmd += ["-P", password]
port = gitConfig("git-p4.port")
if len(port) > 0:
real_cmd += ["-p", port]
host = gitConfig("")
if len(host) > 0:
real_cmd += ["-H", host]
client = gitConfig("git-p4.client")
if len(client) > 0:
real_cmd += ["-c", client]
if isinstance(cmd,basestring):
real_cmd = ' '.join(real_cmd) + ' ' + cmd
real_cmd += cmd
return real_cmd
def chdir(dir):
# P4 uses the PWD environment variable rather than getcwd(). Since we're
# not using the shell, we have to set it ourselves. This path could
# be relative, so go there first, then figure out where we ended up.
os.environ['PWD'] = os.getcwd()
def die(msg):
if verbose:
raise Exception(msg)
sys.stderr.write(msg + "\n")
def write_pipe(c, stdin):
if verbose:
sys.stderr.write('Writing pipe: %s\n' % str(c))
expand = isinstance(c,basestring)
p = subprocess.Popen(c, stdin=subprocess.PIPE, shell=expand)
pipe = p.stdin
val = pipe.write(stdin)
if p.wait():
die('Command failed: %s' % str(c))
return val
def p4_write_pipe(c, stdin):
real_cmd = p4_build_cmd(c)
return write_pipe(real_cmd, stdin)
def read_pipe(c, ignore_error=False):
if verbose:
sys.stderr.write('Reading pipe: %s\n' % str(c))
expand = isinstance(c,basestring)
p = subprocess.Popen(c, stdout=subprocess.PIPE, shell=expand)
pipe = p.stdout
val =
if p.wait() and not ignore_error:
die('Command failed: %s' % str(c))
return val
def p4_read_pipe(c, ignore_error=False):
real_cmd = p4_build_cmd(c)
return read_pipe(real_cmd, ignore_error)
def read_pipe_lines(c):
if verbose:
sys.stderr.write('Reading pipe: %s\n' % str(c))
expand = isinstance(c, basestring)
p = subprocess.Popen(c, stdout=subprocess.PIPE, shell=expand)
pipe = p.stdout
val = pipe.readlines()
if pipe.close() or p.wait():
die('Command failed: %s' % str(c))
return val
def p4_read_pipe_lines(c):
"""Specifically invoke p4 on the command supplied. """
real_cmd = p4_build_cmd(c)
return read_pipe_lines(real_cmd)
def p4_has_command(cmd):
"""Ask p4 for help on this command. If it returns an error, the
command does not exist in this version of p4."""
real_cmd = p4_build_cmd(["help", cmd])
p = subprocess.Popen(real_cmd, stdout=subprocess.PIPE,
return p.returncode == 0
def p4_has_move_command():
"""See if the move command exists, that it supports -k, and that
it has not been administratively disabled. The arguments
must be correct, but the filenames do not have to exist. Use
ones with wildcards so even if they exist, it will fail."""
if not p4_has_command("move"):
return False
cmd = p4_build_cmd(["move", "-k", "@from", "@to"])
p = subprocess.Popen(cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
(out, err) = p.communicate()
# return code will be 1 in either case
if err.find("Invalid option") >= 0:
return False
if err.find("disabled") >= 0:
return False
# assume it failed because @... was invalid changelist
return True
def system(cmd):
expand = isinstance(cmd,basestring)
if verbose:
sys.stderr.write("executing %s\n" % str(cmd))
subprocess.check_call(cmd, shell=expand)
def p4_system(cmd):
"""Specifically invoke p4 as the system command. """
real_cmd = p4_build_cmd(cmd)
expand = isinstance(real_cmd, basestring)
subprocess.check_call(real_cmd, shell=expand)
def p4_integrate(src, dest):
p4_system(["integrate", "-Dt", wildcard_encode(src), wildcard_encode(dest)])
def p4_sync(f, *options):
p4_system(["sync"] + list(options) + [wildcard_encode(f)])
def p4_add(f):
# forcibly add file names with wildcards
if wildcard_present(f):
p4_system(["add", "-f", f])
p4_system(["add", f])
def p4_delete(f):
p4_system(["delete", wildcard_encode(f)])
def p4_edit(f):
p4_system(["edit", wildcard_encode(f)])
def p4_revert(f):
p4_system(["revert", wildcard_encode(f)])
def p4_reopen(type, f):
p4_system(["reopen", "-t", type, wildcard_encode(f)])
def p4_move(src, dest):
p4_system(["move", "-k", wildcard_encode(src), wildcard_encode(dest)])
def p4_describe(change):
"""Make sure it returns a valid result by checking for
the presence of field "time". Return a dict of the
ds = p4CmdList(["describe", "-s", str(change)])
if len(ds) != 1:
die("p4 describe -s %d did not return 1 result: %s" % (change, str(ds)))
d = ds[0]
if "p4ExitCode" in d:
die("p4 describe -s %d exited with %d: %s" % (change, d["p4ExitCode"],
if "code" in d:
if d["code"] == "error":
die("p4 describe -s %d returned error code: %s" % (change, str(d)))
if "time" not in d:
die("p4 describe -s %d returned no \"time\": %s" % (change, str(d)))
return d
# Canonicalize the p4 type and return a tuple of the
# base type, plus any modifiers. See "p4 help filetypes"
# for a list and explanation.
def split_p4_type(p4type):
p4_filetypes_historical = {
"ctempobj": "binary+Sw",
"ctext": "text+C",
"cxtext": "text+Cx",
"ktext": "text+k",
"kxtext": "text+kx",
"ltext": "text+F",
"tempobj": "binary+FSw",
"ubinary": "binary+F",
"uresource": "resource+F",
"uxbinary": "binary+Fx",
"xbinary": "binary+x",
"xltext": "text+Fx",
"xtempobj": "binary+Swx",
"xtext": "text+x",
"xunicode": "unicode+x",
"xutf16": "utf16+x",
if p4type in p4_filetypes_historical:
p4type = p4_filetypes_historical[p4type]
mods = ""
s = p4type.split("+")
base = s[0]
mods = ""
if len(s) > 1:
mods = s[1]
return (base, mods)
# return the raw p4 type of a file (text, text+ko, etc)
def p4_type(file):
results = p4CmdList(["fstat", "-T", "headType", file])
return results[0]['headType']
# Given a type base and modifier, return a regexp matching
# the keywords that can be expanded in the file
def p4_keywords_regexp_for_type(base, type_mods):
if base in ("text", "unicode", "binary"):
kwords = None
if "ko" in type_mods:
kwords = 'Id|Header'
elif "k" in type_mods:
kwords = 'Id|Header|Author|Date|DateTime|Change|File|Revision'
return None
pattern = r"""
\$ # Starts with a dollar, followed by...
(%s) # one of the keywords, followed by...
(:[^$\n]+)? # possibly an old expansion, followed by...
\$ # another dollar
""" % kwords
return pattern
return None
# Given a file, return a regexp matching the possible
# RCS keywords that will be expanded, or None for files
# with kw expansion turned off.
def p4_keywords_regexp_for_file(file):
if not os.path.exists(file):
return None
(type_base, type_mods) = split_p4_type(p4_type(file))
return p4_keywords_regexp_for_type(type_base, type_mods)
def setP4ExecBit(file, mode):
# Reopens an already open file and changes the execute bit to match
# the execute bit setting in the passed in mode.
p4Type = "+x"
if not isModeExec(mode):
p4Type = getP4OpenedType(file)
p4Type = re.sub('^([cku]?)x(.*)', '\\1\\2', p4Type)
p4Type = re.sub('(.*?\+.*?)x(.*?)', '\\1\\2', p4Type)
if p4Type[-1] == "+":
p4Type = p4Type[0:-1]
p4_reopen(p4Type, file)
def getP4OpenedType(file):
# Returns the perforce file type for the given file.
result = p4_read_pipe(["opened", wildcard_encode(file)])
match = re.match(".*\((.+)\)\r?$", result)
if match:
die("Could not determine file type for %s (result: '%s')" % (file, result))
# Return the set of all p4 labels
def getP4Labels(depotPaths):
labels = set()
if isinstance(depotPaths,basestring):
depotPaths = [depotPaths]
for l in p4CmdList(["labels"] + ["%s..." % p for p in depotPaths]):
label = l['label']
return labels
# Return the set of all git tags
def getGitTags():
gitTags = set()
for line in read_pipe_lines(["git", "tag"]):
tag = line.strip()
return gitTags
def diffTreePattern():
# This is a simple generator for the diff tree regex pattern. This could be
# a class variable if this and parseDiffTreeEntry were a part of a class.
pattern = re.compile(':(\d+) (\d+) (\w+) (\w+) ([A-Z])(\d+)?\t(.*?)((\t(.*))|$)')
while True:
yield pattern
def parseDiffTreeEntry(entry):
"""Parses a single diff tree entry into its component elements.
See git-diff-tree(1) manpage for details about the format of the diff
output. This method returns a dictionary with the following elements:
src_mode - The mode of the source file
dst_mode - The mode of the destination file
src_sha1 - The sha1 for the source file
dst_sha1 - The sha1 fr the destination file
status - The one letter status of the diff (i.e. 'A', 'M', 'D', etc)
status_score - The score for the status (applicable for 'C' and 'R'
statuses). This is None if there is no score.
src - The path for the source file.
dst - The path for the destination file. This is only present for
copy or renames. If it is not present, this is None.
If the pattern is not matched, None is returned."""
match = diffTreePattern().next().match(entry)
if match:
return {
return None
def isModeExec(mode):
# Returns True if the given git mode represents an executable file,
# otherwise False.
return mode[-3:] == "755"
def isModeExecChanged(src_mode, dst_mode):
return isModeExec(src_mode) != isModeExec(dst_mode)
def p4CmdList(cmd, stdin=None, stdin_mode='w+b', cb=None):
if isinstance(cmd,basestring):
cmd = "-G " + cmd
expand = True
cmd = ["-G"] + cmd
expand = False
cmd = p4_build_cmd(cmd)
if verbose:
sys.stderr.write("Opening pipe: %s\n" % str(cmd))
# Use a temporary file to avoid deadlocks without
# subprocess.communicate(), which would put another copy
# of stdout into memory.
stdin_file = None
if stdin is not None:
stdin_file = tempfile.TemporaryFile(prefix='p4-stdin', mode=stdin_mode)
if isinstance(stdin,basestring):
for i in stdin:
stdin_file.write(i + '\n')
p4 = subprocess.Popen(cmd,
result = []
while True:
entry = marshal.load(p4.stdout)
if cb is not None:
except EOFError:
exitCode = p4.wait()
if exitCode != 0:
entry = {}
entry["p4ExitCode"] = exitCode
return result
def p4Cmd(cmd):
list = p4CmdList(cmd)
result = {}
for entry in list:
return result;
def p4Where(depotPath):
if not depotPath.endswith("/"):
depotPath += "/"
depotPath = depotPath + "..."
outputList = p4CmdList(["where", depotPath])
output = None
for entry in outputList:
if "depotFile" in entry:
if entry["depotFile"] == depotPath:
output = entry
elif "data" in entry:
data = entry.get("data")
space = data.find(" ")
if data[:space] == depotPath:
output = entry
if output == None:
return ""
if output["code"] == "error":
return ""
clientPath = ""
if "path" in output:
clientPath = output.get("path")
elif "data" in output:
data = output.get("data")
lastSpace = data.rfind(" ")
clientPath = data[lastSpace + 1:]
if clientPath.endswith("..."):
clientPath = clientPath[:-3]
return clientPath
def currentGitBranch():
return read_pipe("git name-rev HEAD").split(" ")[1].strip()
def isValidGitDir(path):
if (os.path.exists(path + "/HEAD")
and os.path.exists(path + "/refs") and os.path.exists(path + "/objects")):
return True;
return False
def parseRevision(ref):
return read_pipe("git rev-parse %s" % ref).strip()
def branchExists(ref):
rev = read_pipe(["git", "rev-parse", "-q", "--verify", ref],
return len(rev) > 0
def extractLogMessageFromGitCommit(commit):
logMessage = ""
## fixme: title is first line of commit, not 1st paragraph.
foundTitle = False
for log in read_pipe_lines("git cat-file commit %s" % commit):
if not foundTitle:
if len(log) == 1:
foundTitle = True
logMessage += log
return logMessage
def extractSettingsGitLog(log):
values = {}
for line in log.split("\n"):
line = line.strip()
m = (r"^ *\[git-p4: (.*)\]$", line)
if not m:
assignments = (':')
for a in assignments:
vals = a.split ('=')
key = vals[0].strip()
val = ('='.join (vals[1:])).strip()
if val.endswith ('\"') and val.startswith('"'):
val = val[1:-1]
values[key] = val
paths = values.get("depot-paths")
if not paths:
paths = values.get("depot-path")
if paths:
values['depot-paths'] = paths.split(',')
return values
def gitBranchExists(branch):
proc = subprocess.Popen(["git", "rev-parse", branch],
stderr=subprocess.PIPE, stdout=subprocess.PIPE);
return proc.wait() == 0;
_gitConfig = {}
def gitConfig(key, args = None): # set args to "--bool", for instance
if not _gitConfig.has_key(key):
argsFilter = ""
if args != None:
argsFilter = "%s " % args
cmd = "git config %s%s" % (argsFilter, key)
_gitConfig[key] = read_pipe(cmd, ignore_error=True).strip()
return _gitConfig[key]
def gitConfigList(key):
if not _gitConfig.has_key(key):
_gitConfig[key] = read_pipe("git config --get-all %s" % key, ignore_error=True).strip().split(os.linesep)
return _gitConfig[key]
def p4BranchesInGit(branchesAreInRemotes=True):
"""Find all the branches whose names start with "p4/", looking
in remotes or heads as specified by the argument. Return
a dictionary of { branch: revision } for each one found.
The branch names are the short names, without any
"p4/" prefix."""
branches = {}
cmdline = "git rev-parse --symbolic "
if branchesAreInRemotes:
cmdline += "--remotes"
cmdline += "--branches"
for line in read_pipe_lines(cmdline):
line = line.strip()
# only import to p4/
if not line.startswith('p4/'):
# special symbolic ref to p4/master
if line == "p4/HEAD":
# strip off p4/ prefix
branch = line[len("p4/"):]
branches[branch] = parseRevision(line)
return branches
def branch_exists(branch):
"""Make sure that the given ref name really exists."""
cmd = [ "git", "rev-parse", "--symbolic", "--verify", branch ]
p = subprocess.Popen(cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
out, _ = p.communicate()
if p.returncode:
return False
# expect exactly one line of output: the branch name
return out.rstrip() == branch
def findUpstreamBranchPoint(head = "HEAD"):
branches = p4BranchesInGit()
# map from depot-path to branch name
branchByDepotPath = {}
for branch in branches.keys():
tip = branches[branch]
log = extractLogMessageFromGitCommit(tip)
settings = extractSettingsGitLog(log)
if settings.has_key("depot-paths"):
paths = ",".join(settings["depot-paths"])
branchByDepotPath[paths] = "remotes/p4/" + branch
settings = None
parent = 0
while parent < 65535:
commit = head + "~%s" % parent
log = extractLogMessageFromGitCommit(commit)
settings = extractSettingsGitLog(log)
if settings.has_key("depot-paths"):
paths = ",".join(settings["depot-paths"])
if branchByDepotPath.has_key(paths):
return [branchByDepotPath[paths], settings]
parent = parent + 1
return ["", settings]
def createOrUpdateBranchesFromOrigin(localRefPrefix = "refs/remotes/p4/", silent=True):
if not silent:
print ("Creating/updating branch(es) in %s based on origin branch(es)"
% localRefPrefix)
originPrefix = "origin/p4/"
for line in read_pipe_lines("git rev-parse --symbolic --remotes"):
line = line.strip()
if (not line.startswith(originPrefix)) or line.endswith("HEAD"):
headName = line[len(originPrefix):]
remoteHead = localRefPrefix + headName
originHead = line
original = extractSettingsGitLog(extractLogMessageFromGitCommit(originHead))
if (not original.has_key('depot-paths')
or not original.has_key('change')):
update = False
if not gitBranchExists(remoteHead):
if verbose:
print "creating %s" % remoteHead
update = True
settings = extractSettingsGitLog(extractLogMessageFromGitCommit(remoteHead))
if settings.has_key('change') > 0:
if settings['depot-paths'] == original['depot-paths']:
originP4Change = int(original['change'])
p4Change = int(settings['change'])
if originP4Change > p4Change:
print ("%s (%s) is newer than %s (%s). "
"Updating p4 branch from origin."
% (originHead, originP4Change,
remoteHead, p4Change))
update = True
print ("Ignoring: %s was imported from %s while "
"%s was imported from %s"
% (originHead, ','.join(original['depot-paths']),
remoteHead, ','.join(settings['depot-paths'])))
if update:
system("git update-ref %s %s" % (remoteHead, originHead))
def originP4BranchesExist():
return gitBranchExists("origin") or gitBranchExists("origin/p4") or gitBranchExists("origin/p4/master")
def p4ChangesForPaths(depotPaths, changeRange):
assert depotPaths
cmd = ['changes']
for p in depotPaths:
cmd += ["%s...%s" % (p, changeRange)]
output = p4_read_pipe_lines(cmd)
changes = {}
for line in output:
changeNum = int(line.split(" ")[1])
changes[changeNum] = True
changelist = changes.keys()
return changelist
def p4PathStartsWith(path, prefix):
# This method tries to remedy a potential mixed-case issue:
# If UserA adds //depot/DirA/file1
# and UserB adds //depot/dira/file2
# we may or may not have a problem. If you have core.ignorecase=true,
# we treat DirA and dira as the same directory
ignorecase = gitConfig("core.ignorecase", "--bool") == "true"
if ignorecase:
return path.lower().startswith(prefix.lower())
return path.startswith(prefix)
def getClientSpec():
"""Look at the p4 client spec, create a View() object that contains
all the mappings, and return it."""
specList = p4CmdList("client -o")
if len(specList) != 1:
die('Output from "client -o" is %d lines, expecting 1' %
# dictionary of all client parameters
entry = specList[0]
# just the keys that start with "View"
view_keys = [ k for k in entry.keys() if k.startswith("View") ]
# hold this new View
view = View()
# append the lines, in order, to the view
for view_num in range(len(view_keys)):
k = "View%d" % view_num
if k not in view_keys:
die("Expected view key %s missing" % k)
return view
def getClientRoot():
"""Grab the client directory."""
output = p4CmdList("client -o")
if len(output) != 1:
die('Output from "client -o" is %d lines, expecting 1' % len(output))
entry = output[0]
if "Root" not in entry:
die('Client has no "Root"')
return entry["Root"]
# P4 wildcards are not allowed in filenames. P4 complains
# if you simply add them, but you can force it with "-f", in
# which case it translates them into %xx encoding internally.
def wildcard_decode(path):
# Search for and fix just these four characters. Do % last so
# that fixing it does not inadvertently create new %-escapes.
# Cannot have * in a filename in windows; untested as to
# what p4 would do in such a case.
if not platform.system() == "Windows":
path = path.replace("%2A", "*")
path = path.replace("%23", "#") \
.replace("%40", "@") \
.replace("%25", "%")
return path
def wildcard_encode(path):
# do % first to avoid double-encoding the %s introduced here
path = path.replace("%", "%25") \
.replace("*", "%2A") \
.replace("#", "%23") \
.replace("@", "%40")
return path
def wildcard_present(path):
return path.translate(None, "*#@%") != path
class Command:
def __init__(self):
self.usage = "usage: %prog [options]"
self.needsGit = True
self.verbose = False
class P4UserMap:
def __init__(self):
self.userMapFromPerforceServer = False
self.myP4UserId = None
def p4UserId(self):
if self.myP4UserId:
return self.myP4UserId
results = p4CmdList("user -o")
for r in results:
if r.has_key('User'):
self.myP4UserId = r['User']
return r['User']
die("Could not find your p4 user id")
def p4UserIsMe(self, p4User):
# return True if the given p4 user is actually me
me = self.p4UserId()
if not p4User or p4User != me:
return False
return True
def getUserCacheFilename(self):
home = os.environ.get("HOME", os.environ.get("USERPROFILE"))
return home + "/.gitp4-usercache.txt"
def getUserMapFromPerforceServer(self):
if self.userMapFromPerforceServer:
self.users = {}
self.emails = {}
for output in p4CmdList("users"):
if not output.has_key("User"):
self.users[output["User"]] = output["FullName"] + " <" + output["Email"] + ">"
self.emails[output["Email"]] = output["User"]
s = ''
for (key, val) in self.users.items():
s += "%s\t%s\n" % (key.expandtabs(1), val.expandtabs(1))
open(self.getUserCacheFilename(), "wb").write(s)
self.userMapFromPerforceServer = True
def loadUserMapFromCache(self):
self.users = {}
self.userMapFromPerforceServer = False
cache = open(self.getUserCacheFilename(), "rb")
lines = cache.readlines()
for line in lines:
entry = line.strip().split("\t")
self.users[entry[0]] = entry[1]
except IOError:
class P4Debug(Command):
def __init__(self):
self.options = []
self.description = "A tool to debug the output of p4 -G."
self.needsGit = False
def run(self, args):
j = 0
for output in p4CmdList(args):
print 'Element: %d' % j
j += 1
print output
return True
class P4RollBack(Command):
def __init__(self):
self.options = [
optparse.make_option("--local", dest="rollbackLocalBranches", action="store_true")
self.description = "A tool to debug the multi-branch import. Don't use :)"
self.rollbackLocalBranches = False
def run(self, args):
if len(args) != 1:
return False
maxChange = int(args[0])
if "p4ExitCode" in p4Cmd("changes -m 1"):
die("Problems executing p4");
if self.rollbackLocalBranches:
refPrefix = "refs/heads/"
lines = read_pipe_lines("git rev-parse --symbolic --branches")
refPrefix = "refs/remotes/"
lines = read_pipe_lines("git rev-parse --symbolic --remotes")
for line in lines:
if self.rollbackLocalBranches or (line.startswith("p4/") and line != "p4/HEAD\n"):
line = line.strip()
ref = refPrefix + line
log = extractLogMessageFromGitCommit(ref)
settings = extractSettingsGitLog(log)
depotPaths = settings['depot-paths']
change = settings['change']
changed = False
if len(p4Cmd("changes -m 1 " + ' '.join (['%s...@%s' % (p, maxChange)
for p in depotPaths]))) == 0:
print "Branch %s did not exist at change %s, deleting." % (ref, maxChange)
system("git update-ref -d %s `git rev-parse %s`" % (ref, ref))
while change and int(change) > maxChange:
changed = True
if self.verbose:
print "%s is at %s ; rewinding towards %s" % (ref, change, maxChange)
system("git update-ref %s \"%s^\"" % (ref, ref))
log = extractLogMessageFromGitCommit(ref)
settings = extractSettingsGitLog(log)
depotPaths = settings['depot-paths']
change = settings['change']
if changed:
print "%s rewound to %s" % (ref, change)
return True
class P4Submit(Command, P4UserMap):
conflict_behavior_choices = ("ask", "skip", "quit")
def __init__(self):
self.options = [
optparse.make_option("--origin", dest="origin"),
optparse.make_option("-M", dest="detectRenames", action="store_true"),
# preserve the user, requires relevant p4 permissions
optparse.make_option("--preserve-user", dest="preserveUser", action="store_true"),
optparse.make_option("--export-labels", dest="exportLabels", action="store_true"),
optparse.make_option("--dry-run", "-n", dest="dry_run", action="store_true"),
optparse.make_option("--prepare-p4-only", dest="prepare_p4_only", action="store_true"),
optparse.make_option("--conflict", dest="conflict_behavior",
optparse.make_option("--branch", dest="branch"),
self.description = "Submit changes from git to the perforce depot."
self.usage += " [name of git branch to submit into perforce depot]"
self.origin = ""
self.detectRenames = False
self.preserveUser = gitConfig("git-p4.preserveUser").lower() == "true"
self.dry_run = False
self.prepare_p4_only = False
self.conflict_behavior = None
self.isWindows = (platform.system() == "Windows")
self.exportLabels = False
self.p4HasMoveCommand = p4_has_move_command()
self.branch = None
def check(self):
if len(p4CmdList("opened ...")) > 0:
die("You have files opened with perforce! Close them before starting the sync.")
def separate_jobs_from_description(self, message):
"""Extract and return a possible Jobs field in the commit
message. It goes into a separate section in the p4 change
A jobs line starts with "Jobs:" and looks like a new field
in a form. Values are white-space separated on the same
line or on following lines that start with a tab.
This does not parse and extract the full git commit message
like a p4 form. It just sees the Jobs: line as a marker
to pass everything from then on directly into the p4 form,
but outside the description section.
Return a tuple (stripped log message, jobs string)."""
m ='^Jobs:', message, re.MULTILINE)
if m is None:
return (message, None)
jobtext = message[m.start():]
stripped_message = message[:m.start()].rstrip()
return (stripped_message, jobtext)
def prepareLogMessage(self, template, message, jobs):
"""Edits the template returned from "p4 change -o" to insert
the message in the Description field, and the jobs text in
the Jobs field."""
result = ""
inDescriptionSection = False
for line in template.split("\n"):
if line.startswith("#"):
result += line + "\n"
if inDescriptionSection:
if line.startswith("Files:") or line.startswith("Jobs:"):
inDescriptionSection = False
# insert Jobs section
if jobs:
result += jobs + "\n"
if line.startswith("Description:"):
inDescriptionSection = True
line += "\n"
for messageLine in message.split("\n"):
line += "\t" + messageLine + "\n"
result += line + "\n"
return result
def patchRCSKeywords(self, file, pattern):
# Attempt to zap the RCS keywords in a p4 controlled file matching the given pattern
(handle, outFileName) = tempfile.mkstemp(dir='.')
outFile = os.fdopen(handle, "w+")
inFile = open(file, "r")
regexp = re.compile(pattern, re.VERBOSE)
for line in inFile.readlines():
line = regexp.sub(r'$\1$', line)
# Forcibly overwrite the original file
shutil.move(outFileName, file)
# cleanup our temporary file
print "Failed to strip RCS keywords in %s" % file
print "Patched up RCS keywords in %s" % file
def p4UserForCommit(self,id):
# Return the tuple (perforce user,git email) for a given git commit id
gitEmail = read_pipe("git log --max-count=1 --format='%%ae' %s" % id)
gitEmail = gitEmail.strip()
if not self.emails.has_key(gitEmail):
return (None,gitEmail)
return (self.emails[gitEmail],gitEmail)
def checkValidP4Users(self,commits):
# check if any git authors cannot be mapped to p4 users
for id in commits:
(user,email) = self.p4UserForCommit(id)
if not user:
msg = "Cannot find p4 user for email %s in commit %s." % (email, id)
if gitConfig('git-p4.allowMissingP4Users').lower() == "true":
print "%s" % msg
die("Error: %s\nSet git-p4.allowMissingP4Users to true to allow this." % msg)
def lastP4Changelist(self):
# Get back the last changelist number submitted in this client spec. This
# then gets used to patch up the username in the change. If the same
# client spec is being used by multiple processes then this might go
# wrong.
results = p4CmdList("client -o") # find the current client
client = None
for r in results:
if r.has_key('Client'):
client = r['Client']
if not client:
die("could not get client spec")
results = p4CmdList(["changes", "-c", client, "-m", "1"])
for r in results:
if r.has_key('change'):
return r['change']
die("Could not get changelist number for last submit - cannot patch up user details")
def modifyChangelistUser(self, changelist, newUser):
# fixup the user field of a changelist after it has been submitted.
changes = p4CmdList("change -o %s" % changelist)
if len(changes) != 1:
die("Bad output from p4 change modifying %s to user %s" %
(changelist, newUser))
c = changes[0]
if c['User'] == newUser: return # nothing to do
c['User'] = newUser
input = marshal.dumps(c)
result = p4CmdList("change -f -i", stdin=input)
for r in result:
if r.has_key('code'):
if r['code'] == 'error':
die("Could not modify user field of changelist %s to %s:%s" % (changelist, newUser, r['data']))
if r.has_key('data'):
print("Updated user field for changelist %s to %s" % (changelist, newUser))
die("Could not modify user field of changelist %s to %s" % (changelist, newUser))
def canChangeChangelists(self):
# check to see if we have p4 admin or super-user permissions, either of
# which are required to modify changelists.
results = p4CmdList(["protects", self.depotPath])
for r in results:
if r.has_key('perm'):
if r['perm'] == 'admin':
return 1
if r['perm'] == 'super':
return 1
return 0
def prepareSubmitTemplate(self):
"""Run "p4 change -o" to grab a change specification template.
This does not use "p4 -G", as it is nice to keep the submission
template in original order, since a human might edit it.
Remove lines in the Files section that show changes to files
outside the depot path we're committing into."""
template = ""
inFilesSection = False
for line in p4_read_pipe_lines(['change', '-o']):
if line.endswith("\r\n"):
line = line[:-2] + "\n"
if inFilesSection:
if line.startswith("\t"):
# path starts and ends with a tab
path = line[1:]
lastTab = path.rfind("\t")
if lastTab != -1:
path = path[:lastTab]
if not p4PathStartsWith(path, self.depotPath):
inFilesSection = False
if line.startswith("Files:"):
inFilesSection = True
template += line
return template
def edit_template(self, template_file):
"""Invoke the editor to let the user change the submission
message. Return true if okay to continue with the submit."""
# if configured to skip the editing part, just submit
if gitConfig("git-p4.skipSubmitEdit") == "true":
return True
# look at the modification time, to check later if the user saved
# the file
mtime = os.stat(template_file).st_mtime
# invoke the editor
if os.environ.has_key("P4EDITOR") and (os.environ.get("P4EDITOR") != ""):
editor = os.environ.get("P4EDITOR")
editor = read_pipe("git var GIT_EDITOR").strip()
system(editor + " " + template_file)
# If the file was not saved, prompt to see if this patch should
# be skipped. But skip this verification step if configured so.
if gitConfig("git-p4.skipSubmitEditCheck") == "true":
return True
# modification time updated means user saved the file
if os.stat(template_file).st_mtime > mtime:
return True
while True:
response = raw_input("Submit template unchanged. Submit anyway? [y]es, [n]o (skip this patch) ")
if response == 'y':
return True
if response == 'n':
return False
def applyCommit(self, id):
"""Apply one commit, return True if it succeeded."""
print "Applying", read_pipe(["git", "show", "-s",
"--format=format:%h %s", id])
(p4User, gitEmail) = self.p4UserForCommit(id)
diff = read_pipe_lines("git diff-tree -r %s \"%s^\" \"%s\"" % (self.diffOpts, id, id))
filesToAdd = set()
filesToDelete = set()
editedFiles = set()
pureRenameCopy = set()
filesToChangeExecBit = {}
for line in diff:
diff = parseDiffTreeEntry(line)
modifier = diff['status']
path = diff['src']
if modifier == "M":
if isModeExecChanged(diff['src_mode'], diff['dst_mode']):
filesToChangeExecBit[path] = diff['dst_mode']
elif modifier == "A":
filesToChangeExecBit[path] = diff['dst_mode']
if path in filesToDelete:
elif modifier == "D":
if path in filesToAdd:
elif modifier == "C":
src, dest = diff['src'], diff['dst']
p4_integrate(src, dest)
if diff['src_sha1'] != diff['dst_sha1']:
if isModeExecChanged(diff['src_mode'], diff['dst_mode']):
filesToChangeExecBit[dest] = diff['dst_mode']
elif modifier == "R":
src, dest = diff['src'], diff['dst']
if self.p4HasMoveCommand:
p4_edit(src) # src must be open before move
p4_move(src, dest) # opens for (move/delete, move/add)
p4_integrate(src, dest)
if diff['src_sha1'] != diff['dst_sha1']:
if isModeExecChanged(diff['src_mode'], diff['dst_mode']):
if not self.p4HasMoveCommand:
p4_edit(dest) # with move: already open, writable
filesToChangeExecBit[dest] = diff['dst_mode']
if not self.p4HasMoveCommand:
die("unknown modifier %s for %s" % (modifier, path))
diffcmd = "git format-patch -k --stdout \"%s^\"..\"%s\"" % (id, id)
patchcmd = diffcmd + " | git apply "
tryPatchCmd = patchcmd + "--check -"
applyPatchCmd = patchcmd + "--check --apply -"
patch_succeeded = True
if os.system(tryPatchCmd) != 0:
fixed_rcs_keywords = False
patch_succeeded = False
print "Unfortunately applying the change failed!"
# Patch failed, maybe it's just RCS keyword woes. Look through
# the patch to see if that's possible.
if gitConfig("git-p4.attemptRCSCleanup","--bool") == "true":
file = None
pattern = None
kwfiles = {}
for file in editedFiles | filesToDelete:
# did this file's delta contain RCS keywords?
pattern = p4_keywords_regexp_for_file(file)
if pattern:
# this file is a possibility...look for RCS keywords.
regexp = re.compile(pattern, re.VERBOSE)
for line in read_pipe_lines(["git", "diff", "%s^..%s" % (id, id), file]):
if verbose:
print "got keyword match on %s in %s in %s" % (pattern, line, file)
kwfiles[file] = pattern
for file in kwfiles:
if verbose:
print "zapping %s with %s" % (line,pattern)
self.patchRCSKeywords(file, kwfiles[file])
fixed_rcs_keywords = True
if fixed_rcs_keywords:
print "Retrying the patch with RCS keywords cleaned up"
if os.system(tryPatchCmd) == 0:
patch_succeeded = True
if not patch_succeeded:
for f in editedFiles:
return False
# Apply the patch for real, and do add/delete/+x handling.
for f in filesToAdd:
for f in filesToDelete:
# Set/clear executable bits
for f in filesToChangeExecBit.keys():
mode = filesToChangeExecBit[f]
setP4ExecBit(f, mode)
# Build p4 change description, starting with the contents
# of the git commit message.
logMessage = extractLogMessageFromGitCommit(id)
logMessage = logMessage.strip()
(logMessage, jobs) = self.separate_jobs_from_description(logMessage)
template = self.prepareSubmitTemplate()
submitTemplate = self.prepareLogMessage(template, logMessage, jobs)
if self.preserveUser:
submitTemplate += "\n######## Actual user %s, modified after commit\n" % p4User
if self.checkAuthorship and not self.p4UserIsMe(p4User):
submitTemplate += "######## git author %s does not match your p4 account.\n" % gitEmail
submitTemplate += "######## Use option --preserve-user to modify authorship.\n"
submitTemplate += "######## Variable git-p4.skipUserNameCheck hides this message.\n"
separatorLine = "######## everything below this line is just the diff #######\n"
# diff
if os.environ.has_key("P4DIFF"):
diff = ""
for editedFile in editedFiles:
diff += p4_read_pipe(['diff', '-du',
# new file diff
newdiff = ""
for newFile in filesToAdd:
newdiff += "==== new file ====\n"
newdiff += "--- /dev/null\n"
newdiff += "+++ %s\n" % newFile
f = open(newFile, "r")
for line in f.readlines():
newdiff += "+" + line
# change description file: submitTemplate, separatorLine, diff, newdiff
(handle, fileName) = tempfile.mkstemp()
tmpFile = os.fdopen(handle, "w+")
if self.isWindows:
submitTemplate = submitTemplate.replace("\n", "\r\n")
separatorLine = separatorLine.replace("\n", "\r\n")
newdiff = newdiff.replace("\n", "\r\n")
tmpFile.write(submitTemplate + separatorLine + diff + newdiff)
if self.prepare_p4_only:
# Leave the p4 tree prepared, and the submit template around
# and let the user decide what to do next
print "P4 workspace prepared for submission."
print "To submit or revert, go to client workspace"
print " " + self.clientPath
print "To submit, use \"p4 submit\" to write a new description,"
print "or \"p4 submit -i %s\" to use the one prepared by" \
" \"git p4\"." % fileName
print "You can delete the file \"%s\" when finished." % fileName
if self.preserveUser and p4User and not self.p4UserIsMe(p4User):
print "To preserve change ownership by user %s, you must\n" \
"do \"p4 change -f <change>\" after submitting and\n" \
"edit the User field."
if pureRenameCopy:
print "After submitting, renamed files must be re-synced."
print "Invoke \"p4 sync -f\" on each of these files:"
for f in pureRenameCopy:
print " " + f
print "To revert the changes, use \"p4 revert ...\", and delete"
print "the submit template file \"%s\"" % fileName
if filesToAdd:
print "Since the commit adds new files, they must be deleted:"
for f in filesToAdd:
print " " + f
return True
# Let the user edit the change description, then submit it.
if self.edit_template(fileName):
# read the edited message and submit
ret = True
tmpFile = open(fileName, "rb")
message =
submitTemplate = message[:message.index(separatorLine)]
if self.isWindows:
submitTemplate = submitTemplate.replace("\r\n", "\n")
p4_write_pipe(['submit', '-i'], submitTemplate)
if self.preserveUser:
if p4User:
# Get last changelist number. Cannot easily get it from
# the submit command output as the output is
# unmarshalled.
changelist = self.lastP4Changelist()
self.modifyChangelistUser(changelist, p4User)
# The rename/copy happened by applying a patch that created a
# new file. This leaves it writable, which confuses p4.
for f in pureRenameCopy:
p4_sync(f, "-f")
# skip this patch
ret = False
print "Submission cancelled, undoing p4 changes."
for f in editedFiles:
for f in filesToAdd:
for f in filesToDelete:
return ret
# Export git tags as p4 labels. Create a p4 label and then tag
# with that.
def exportGitTags(self, gitTags):
validLabelRegexp = gitConfig("git-p4.labelExportRegexp")
if len(validLabelRegexp) == 0:
validLabelRegexp = defaultLabelRegexp
m = re.compile(validLabelRegexp)
for name in gitTags:
if not m.match(name):
if verbose:
print "tag %s does not match regexp %s" % (name, validLabelRegexp)
# Get the p4 commit this corresponds to
logMessage = extractLogMessageFromGitCommit(name)
values = extractSettingsGitLog(logMessage)
if not values.has_key('change'):
# a tag pointing to something not sent to p4; ignore
if verbose:
print "git tag %s does not give a p4 commit" % name
changelist = values['change']
# Get the tag details.
inHeader = True
isAnnotated = False
body = []
for l in read_pipe_lines(["git", "cat-file", "-p", name]):
l = l.strip()
if inHeader:
if re.match(r'tag\s+', l):
isAnnotated = True
elif re.match(r'\s*$', l):
inHeader = False
if not isAnnotated:
body = ["lightweight tag imported by git p4\n"]
# Create the label - use the same view as the client spec we are using
clientSpec = getClientSpec()
labelTemplate = "Label: %s\n" % name
labelTemplate += "Description:\n"
for b in body:
labelTemplate += "\t" + b + "\n"
labelTemplate += "View:\n"
for mapping in clientSpec.mappings:
labelTemplate += "\t%s\n" % mapping.depot_side.path
if self.dry_run:
print "Would create p4 label %s for tag" % name
elif self.prepare_p4_only:
print "Not creating p4 label %s for tag due to option" \
" --prepare-p4-only" % name
p4_write_pipe(["label", "-i"], labelTemplate)
# Use the label
p4_system(["tag", "-l", name] +
["%s@%s" % (mapping.depot_side.path, changelist) for mapping in clientSpec.mappings])
if verbose:
print "created p4 label for tag %s" % name
def run(self, args):
if len(args) == 0:
self.master = currentGitBranch()
if len(self.master) == 0 or not gitBranchExists("refs/heads/%s" % self.master):
die("Detecting current git branch failed!")
elif len(args) == 1:
self.master = args[0]
if not branchExists(self.master):
die("Branch %s does not exist" % self.master)
return False
allowSubmit = gitConfig("git-p4.allowSubmit")
if len(allowSubmit) > 0 and not self.master in allowSubmit.split(","):
die("%s is not in git-p4.allowSubmit" % self.master)
[upstream, settings] = findUpstreamBranchPoint()
self.depotPath = settings['depot-paths'][0]
if len(self.origin) == 0:
self.origin = upstream
if self.preserveUser:
if not self.canChangeChangelists():
die("Cannot preserve user names without p4 super-user or admin permissions")
# if not set from the command line, try the config file
if self.conflict_behavior is None:
val = gitConfig("git-p4.conflict")
if val:
if val not in self.conflict_behavior_choices:
die("Invalid value '%s' for config git-p4.conflict" % val)
val = "ask"
self.conflict_behavior = val
if self.verbose:
print "Origin branch is " + self.origin
if len(self.depotPath) == 0:
print "Internal error: cannot locate perforce depot path from existing branches"
self.useClientSpec = False
if gitConfig("git-p4.useclientspec", "--bool") == "true":
self.useClientSpec = True
if self.useClientSpec:
self.clientSpecDirs = getClientSpec()
if self.useClientSpec:
# all files are relative to the client spec
self.clientPath = getClientRoot()
self.clientPath = p4Where(self.depotPath)
if self.clientPath == "":
die("Error: Cannot locate perforce checkout of %s in client view" % self.depotPath)
print "Perforce checkout for depot path %s located at %s" % (self.depotPath, self.clientPath)
self.oldWorkingDirectory = os.getcwd()
# ensure the clientPath exists
new_client_dir = False
if not os.path.exists(self.clientPath):
new_client_dir = True
if self.dry_run:
print "Would synchronize p4 checkout in %s" % self.clientPath
print "Synchronizing p4 checkout..."
if new_client_dir:
# old one was destroyed, and maybe nobody told p4
p4_sync("...", "-f")
commits = []
for line in read_pipe_lines("git rev-list --no-merges %s..%s" % (self.origin, self.master)):
if self.preserveUser or (gitConfig("git-p4.skipUserNameCheck") == "true"):
self.checkAuthorship = False
self.checkAuthorship = True
if self.preserveUser:
# Build up a set of options to be passed to diff when
# submitting each commit to p4.
if self.detectRenames:
# command-line -M arg
self.diffOpts = "-M"
# If not explicitly set check the config variable
detectRenames = gitConfig("git-p4.detectRenames")
if detectRenames.lower() == "false" or detectRenames == "":
self.diffOpts = ""
elif detectRenames.lower() == "true":
self.diffOpts = "-M"
self.diffOpts = "-M%s" % detectRenames
# no command-line arg for -C or --find-copies-harder, just
# config variables
detectCopies = gitConfig("git-p4.detectCopies")
if detectCopies.lower() == "false" or detectCopies == "":
elif detectCopies.lower() == "true":
self.diffOpts += " -C"
self.diffOpts += " -C%s" % detectCopies
if gitConfig("git-p4.detectCopiesHarder", "--bool") == "true":
self.diffOpts += " --find-copies-harder"
# Apply the commits, one at a time. On failure, ask if should
# continue to try the rest of the patches, or quit.
if self.dry_run:
print "Would apply"
applied = []
last = len(commits) - 1
for i, commit in enumerate(commits):
if self.dry_run:
print " ", read_pipe(["git", "show", "-s",
"--format=format:%h %s", commit])
ok = True
ok = self.applyCommit(commit)
if ok:
if self.prepare_p4_only and i < last:
print "Processing only the first commit due to option" \
" --prepare-p4-only"
if i < last:
quit = False
while True:
# prompt for what to do, or use the option/variable
if self.conflict_behavior == "ask":
print "What do you want to do?"
response = raw_input("[s]kip this commit but apply"
" the rest, or [q]uit? ")
if not response:
elif self.conflict_behavior == "skip":
response = "s"
elif self.conflict_behavior == "quit":
response = "q"
die("Unknown conflict_behavior '%s'" %
if response[0] == "s":
print "Skipping this commit, but applying the rest"
if response[0] == "q":
print "Quitting"
quit = True
if quit:
if self.dry_run:
elif self.prepare_p4_only:
elif len(commits) == len(applied):
print "All commits applied!"
sync = P4Sync()
if self.branch:
sync.branch = self.branch[])
rebase = P4Rebase()
if len(applied) == 0:
print "No commits applied."
print "Applied only the commits marked with '*':"
for c in commits:
if c in applied:
star = "*"
star = " "
print star, read_pipe(["git", "show", "-s",
"--format=format:%h %s", c])
print "You will have to do 'git p4 sync' and rebase."
if gitConfig("git-p4.exportLabels", "--bool") == "true":
self.exportLabels = True
if self.exportLabels:
p4Labels = getP4Labels(self.depotPath)
gitTags = getGitTags()
missingGitTags = gitTags - p4Labels
# exit with error unless everything applied perfecly
if len(commits) != len(applied):
return True
class View(object):
"""Represent a p4 view ("p4 help views"), and map files in a
repo according to the view."""
class Path(object):
"""A depot or client path, possibly containing wildcards.
The only one supported is ... at the end, currently.
Initialize with the full path, with //depot or //client."""
def __init__(self, path, is_depot):
self.path = path
self.is_depot = is_depot
# remember the prefix bit, useful for relative mappings
m = re.match("(//[^/]+/)", self.path)
if not m:
die("Path %s does not start with //prefix/" % self.path)
prefix =
if not self.is_depot:
# strip //client/ on client paths
self.path = self.path[len(prefix):]
def find_wildcards(self):
"""Make sure wildcards are valid, and set up internal
self.ends_triple_dot = False
# There are three wildcards allowed in p4 views
# (see "p4 help views"). This code knows how to
# handle "..." (only at the end), but cannot deal with
# "%%n" or "*". Only check the depot_side, as p4 should
# validate that the client_side matches too.
if'%%[1-9]', self.path):
die("Can't handle %%n wildcards in view: %s" % self.path)
if self.path.find("*") >= 0:
die("Can't handle * wildcards in view: %s" % self.path)
triple_dot_index = self.path.find("...")
if triple_dot_index >= 0:
if triple_dot_index != len(self.path) - 3:
die("Can handle only single ... wildcard, at end: %s" %
self.ends_triple_dot = True
def ensure_compatible(self, other_path):
"""Make sure the wildcards agree."""
if self.ends_triple_dot != other_path.ends_triple_dot:
die("Both paths must end with ... if either does;\n" +
"paths: %s %s" % (self.path, other_path.path))
def match_wildcards(self, test_path):
"""See if this test_path matches us, and fill in the value
of the wildcards if so. Returns a tuple of
(True|False, wildcards[]). For now, only the ... at end
is supported, so at most one wildcard."""
if self.ends_triple_dot:
dotless = self.path[:-3]
if test_path.startswith(dotless):
wildcard = test_path[len(dotless):]
return (True, [ wildcard ])
if test_path == self.path:
return (True, [])
return (False, [])
def match(self, test_path):
"""Just return if it matches; don't bother with the wildcards."""
b, _ = self.match_wildcards(test_path)
return b
def fill_in_wildcards(self, wildcards):
"""Return the relative path, with the wildcards filled in
if there are any."""
if self.ends_triple_dot:
return self.path[:-3] + wildcards[0]
return self.path
class Mapping(object):
def __init__(self, depot_side, client_side, overlay, exclude):
# depot_side is without the trailing /... if it had one
self.depot_side = View.Path(depot_side, is_depot=True)
self.client_side = View.Path(client_side, is_depot=False)
self.overlay = overlay # started with "+"
self.exclude = exclude # started with "-"
assert not (self.overlay and self.exclude)
def __str__(self):
c = " "
if self.overlay:
c = "+"
if self.exclude:
c = "-"
return "View.Mapping: %s%s -> %s" % \
(c, self.depot_side.path, self.client_side.path)
def map_depot_to_client(self, depot_path):
"""Calculate the client path if using this mapping on the
given depot path; does not consider the effect of other
mappings in a view. Even excluded mappings are returned."""
matches, wildcards = self.depot_side.match_wildcards(depot_path)
if not matches:
return ""
client_path = self.client_side.fill_in_wildcards(wildcards)
return client_path
# View methods
def __init__(self):
self.mappings = []
def append(self, view_line):
"""Parse a view line, splitting it into depot and client
sides. Append to self.mappings, preserving order."""
# Split the view line into exactly two words. P4 enforces
# structure on these lines that simplifies this quite a bit.
# Either or both words may be double-quoted.
# Single quotes do not matter.
# Double-quote marks cannot occur inside the words.
# A + or - prefix is also inside the quotes.
# There are no quotes unless they contain a space.
# The line is already white-space stripped.
# The two words are separated by a single space.
if view_line[0] == '"':
# First word is double quoted. Find its end.
close_quote_index = view_line.find('"', 1)
if close_quote_index <= 0:
die("No first-word closing quote found: %s" % view_line)
depot_side = view_line[1:close_quote_index]
# skip closing quote and space
rhs_index = close_quote_index + 1 + 1
space_index = view_line.find(" ")
if space_index <= 0:
die("No word-splitting space found: %s" % view_line)
depot_side = view_line[0:space_index]
rhs_index = space_index + 1
if view_line[rhs_index] == '"':
# Second word is double quoted. Make sure there is a
# double quote at the end too.
if not view_line.endswith('"'):
die("View line with rhs quote should end with one: %s" %
# skip the quotes
client_side = view_line[rhs_index+1:-1]
client_side = view_line[rhs_index:]
# prefix + means overlay on previous mapping
overlay = False
if depot_side.startswith("+"):
overlay = True
depot_side = depot_side[1:]
# prefix - means exclude this path
exclude = False
if depot_side.startswith("-"):
exclude = True
depot_side = depot_side[1:]
m = View.Mapping(depot_side, client_side, overlay, exclude)
def map_in_client(self, depot_path):
"""Return the relative location in the client where this
depot file should live. Returns "" if the file should
not be mapped in the client."""
paths_filled = []
client_path = ""
# look at later entries first
for m in self.mappings[::-1]:
# see where will this path end up in the client
p = m.map_depot_to_client(depot_path)
if p == "":
# Depot path does not belong in client. Must remember
# this, as previous items should not cause files to
# exist in this path either. Remember that the list is
# being walked from the end, which has higher precedence.
# Overlap mappings do not exclude previous mappings.
if not m.overlay:
# This mapping matched; no need to search any further.
# But, the mapping could be rejected if the client path
# has already been claimed by an earlier mapping (i.e.
# one later in the list, which we are walking backwards).
already_mapped_in_client = False
for f in paths_filled:
# this is View.Path.match
if f.match(p):
already_mapped_in_client = True
if not already_mapped_in_client:
# Include this file, unless it is from a line that
# explicitly said to exclude it.
if not m.exclude:
client_path = p
# a match, even if rejected, always stops the search
return client_path
class P4Sync(Command, P4UserMap):
delete_actions = ( "delete", "move/delete", "purge" )
def __init__(self):
self.options = [
optparse.make_option("--branch", dest="branch"),
optparse.make_option("--detect-branches", dest="detectBranches", action="store_true"),
optparse.make_option("--changesfile", dest="changesFile"),
optparse.make_option("--silent", dest="silent", action="store_true"),
optparse.make_option("--detect-labels", dest="detectLabels", action="store_true"),
optparse.make_option("--import-labels", dest="importLabels", action="store_true"),
optparse.make_option("--import-local", dest="importIntoRemotes", action="store_false",
help="Import into refs/heads/ , not refs/remotes"),
optparse.make_option("--max-changes", dest="maxChanges"),
optparse.make_option("--keep-path", dest="keepRepoPath", action='store_true',
help="Keep entire BRANCH/DIR/SUBDIR prefix during import"),
optparse.make_option("--use-client-spec", dest="useClientSpec", action='store_true',
help="Only sync files that are included in the Perforce Client Spec")
self.description = """Imports from Perforce into a git repository.\n
//depot/my/project/ -- to import the current head
//depot/my/project/@all -- to import everything
//depot/my/project/@1,6 -- to import only from revision 1 to 6
(a ... is not needed in the path p4 specification, it's added implicitly)"""
self.usage += " //depot/path[@revRange]"
self.silent = False
self.createdBranches = set()
self.committedChanges = set()
self.branch = ""
self.detectBranches = False
self.detectLabels = False
self.importLabels = False
self.changesFile = ""
self.syncWithOrigin = True
self.importIntoRemotes = True
self.maxChanges = ""
self.isWindows = (platform.system() == "Windows")
self.keepRepoPath = False
self.depotPaths = None
self.p4BranchesInGit = []
self.cloneExclude = []
self.useClientSpec = False
self.useClientSpec_from_options = False
self.clientSpecDirs = None
self.tempBranches = []
self.tempBranchLocation = "git-p4-tmp"
if gitConfig("git-p4.syncFromOrigin") == "false":
self.syncWithOrigin = False
# Force a checkpoint in fast-import and wait for it to finish
def checkpoint(self):
self.gitStream.write("progress checkpoint\n\n")
out = self.gitOutput.readline()
if self.verbose:
print "checkpoint finished: " + out
def extractFilesFromCommit(self, commit):
self.cloneExclude = [re.sub(r"\.\.\.$", "", path)
for path in self.cloneExclude]
files = []
fnum = 0
while commit.has_key("depotFile%s" % fnum):
path = commit["depotFile%s" % fnum]
if [p for p in self.cloneExclude
if p4PathStartsWith(path, p)]:
found = False
found = [p for p in self.depotPaths
if p4PathStartsWith(path, p)]
if not found:
fnum = fnum + 1
file = {}
file["path"] = path
file["rev"] = commit["rev%s" % fnum]
file["action"] = commit["action%s" % fnum]
file["type"] = commit["type%s" % fnum]
fnum = fnum + 1
return files
def stripRepoPath(self, path, prefixes):
"""When streaming files, this is called to map a p4 depot path
to where it should go in git. The prefixes are either
self.depotPaths, or self.branchPrefixes in the case of
branch detection."""
if self.useClientSpec:
# branch detection moves files up a level (the branch name)
# from what client spec interpretation gives
path = self.clientSpecDirs.map_in_client(path)
if self.detectBranches:
for b in self.knownBranches:
if path.startswith(b + "/"):
path = path[len(b)+1:]
elif self.keepRepoPath:
# Preserve everything in relative path name except leading
# //depot/; just look at first prefix as they all should
# be in the same depot.
depot = re.sub("^(//[^/]+/).*", r'\1', prefixes[0])
if p4PathStartsWith(path, depot):
path = path[len(depot):]
for p in prefixes:
if p4PathStartsWith(path, p):
path = path[len(p):]
path = wildcard_decode(path)
return path
def splitFilesIntoBranches(self, commit):
"""Look at each depotFile in the commit to figure out to what
branch it belongs."""
branches = {}
fnum = 0
while commit.has_key("depotFile%s" % fnum):
path = commit["depotFile%s" % fnum]
found = [p for p in self.depotPaths
if p4PathStartsWith(path, p)]
if not found:
fnum = fnum + 1
file = {}
file["path"] = path
file["rev"] = commit["rev%s" % fnum]
file["action"] = commit["action%s" % fnum]
file["type"] = commit["type%s" % fnum]
fnum = fnum + 1
# start with the full relative path where this file would
# go in a p4 client
if self.useClientSpec:
relPath = self.clientSpecDirs.map_in_client(path)
relPath = self.stripRepoPath(path, self.depotPaths)
for branch in self.knownBranches.keys():
# add a trailing slash so that a commit into qt/4.2foo
# doesn't end up in qt/4.2, e.g.
if relPath.startswith(branch + "/"):
if branch not in branches:
branches[branch] = []
return branches
# output one file from the P4 stream
# - helper for streamP4Files
def streamOneP4File(self, file, contents):
relPath = self.stripRepoPath(file['depotFile'], self.branchPrefixes)
if verbose:
sys.stderr.write("%s\n" % relPath)
(type_base, type_mods) = split_p4_type(file["type"])
git_mode = "100644"
if "x" in type_mods:
git_mode = "100755"
if type_base == "symlink":
git_mode = "120000"
# p4 print on a symlink contains "target\n"; remove the newline
data = ''.join(contents)
contents = [data[:-1]]
if type_base == "utf16":
# p4 delivers different text in the python output to -G
# than it does when using "print -o", or normal p4 client
# operations. utf16 is converted to ascii or utf8, perhaps.
# But ascii text saved as -t utf16 is completely mangled.
# Invoke print -o to get the real contents.
text = p4_read_pipe(['print', '-q', '-o', '-', file['depotFile']])
contents = [ text ]
if type_base == "apple":
# Apple filetype files will be streamed as a concatenation of
# its appledouble header and the contents. This is useless
# on both macs and non-macs. If using "print -q -o xx", it
# will create "xx" with the data, and "%xx" with the header.
# This is also not very useful.
# Ideally, someday, this script can learn how to generate
# appledouble files directly and import those to git, but
# non-mac machines can never find a use for apple filetype.
print "\nIgnoring apple filetype file %s" % file['depotFile']
# Perhaps windows wants unicode, utf16 newlines translated too;
# but this is not doing it.
if self.isWindows and type_base == "text":
mangled = []
for data in contents:
data = data.replace("\r\n", "\n")
contents = mangled
# Note that we do not try to de-mangle keywords on utf16 files,
# even though in theory somebody may want that.
pattern = p4_keywords_regexp_for_type(type_base, type_mods)
if pattern:
regexp = re.compile(pattern, re.VERBOSE)
text = ''.join(contents)
text = regexp.sub(r'$\1$', text)
contents = [ text ]
self.gitStream.write("M %s inline %s\n" % (git_mode, relPath))
# total length...
length = 0
for d in contents:
length = length + len(d)
self.gitStream.write("data %d\n" % length)
for d in contents:
def streamOneP4Deletion(self, file):
relPath = self.stripRepoPath(file['path'], self.branchPrefixes)
if verbose:
sys.stderr.write("delete %s\n" % relPath)
self.gitStream.write("D %s\n" % relPath)
# handle another chunk of streaming data
def streamP4FilesCb(self, marshalled):
# catch p4 errors and complain
err = None
if "code" in marshalled:
if marshalled["code"] == "error":
if "data" in marshalled:
err = marshalled["data"].rstrip()
if err:
f = None
if self.stream_have_file_info:
if "depotFile" in self.stream_file:
f = self.stream_file["depotFile"]
# force a failure in fast-import, else an empty
# commit will be made
# ignore errors, but make sure it exits first
if f:
die("Error from p4 print for %s: %s" % (f, err))
die("Error from p4 print: %s" % err)
if marshalled.has_key('depotFile') and self.stream_have_file_info:
# start of a new file - output the old one first
self.streamOneP4File(self.stream_file, self.stream_contents)
self.stream_file = {}
self.stream_contents = []
self.stream_have_file_info = False
# pick up the new file information... for the
# 'data' field we need to append to our array
for k in marshalled.keys():
if k == 'data':
self.stream_file[k] = marshalled[k]
self.stream_have_file_info = True
# Stream directly from "p4 files" into "git fast-import"
def streamP4Files(self, files):
filesForCommit = []
filesToRead = []
filesToDelete = []
for f in files:
# if using a client spec, only add the files that have
# a path in the client
if self.clientSpecDirs:
if self.clientSpecDirs.map_in_client(f['path']) == "":
if f['action'] in self.delete_actions:
# deleted files...
for f in filesToDelete:
if len(filesToRead) > 0:
self.stream_file = {}
self.stream_contents = []
self.stream_have_file_info = False
# curry self argument
def streamP4FilesCbSelf(entry):
fileArgs = ['%s#%s' % (f['path'], f['rev']) for f in filesToRead]
p4CmdList(["-x", "-", "print"],
# do the last chunk
if self.stream_file.has_key('depotFile'):
self.streamOneP4File(self.stream_file, self.stream_contents)
def make_email(self, userid):
if userid in self.users:
return self.users[userid]
return "%s <a@b>" % userid
# Stream a p4 tag
def streamTag(self, gitStream, labelName, labelDetails, commit, epoch):
if verbose:
print "writing tag %s for commit %s" % (labelName, commit)
gitStream.write("tag %s\n" % labelName)
gitStream.write("from %s\n" % commit)
if labelDetails.has_key('Owner'):
owner = labelDetails["Owner"]
owner = None
# Try to use the owner of the p4 label, or failing that,
# the current p4 user id.
if owner:
email = self.make_email(owner)
email = self.make_email(self.p4UserId())
tagger = "%s %s %s" % (email, epoch,
gitStream.write("tagger %s\n" % tagger)
print "labelDetails=",labelDetails
if labelDetails.has_key('Description'):
description = labelDetails['Description']
description = 'Label from git p4'
gitStream.write("data %d\n" % len(description))
def commit(self, details, files, branch, parent = ""):
epoch = details["time"]
author = details["user"]
if self.verbose:
print "commit into %s" % branch
# start with reading files; if that fails, we should not
# create a commit.
new_files = []
for f in files:
if [p for p in self.branchPrefixes if p4PathStartsWith(f['path'], p)]:
new_files.append (f)
sys.stderr.write("Ignoring file outside of prefix: %s\n" % f['path'])
self.gitStream.write("commit %s\n" % branch)
# gitStream.write("mark :%s\n" % details["change"])
committer = ""
if author not in self.users:
committer = "%s %s %s" % (self.make_email(author), epoch,
self.gitStream.write("committer %s\n" % committer)
self.gitStream.write("data <<EOT\n")
self.gitStream.write("\n[git-p4: depot-paths = \"%s\": change = %s" %
(','.join(self.branchPrefixes), details["change"]))
if len(details['options']) > 0:
self.gitStream.write(": options = %s" % details['options'])
if len(parent) > 0:
if self.verbose:
print "parent %s" % parent
self.gitStream.write("from %s\n" % parent)
change = int(details["change"])
if self.labels.has_key(change):
label = self.labels[change]
labelDetails = label[0]
labelRevisions = label[1]
if self.verbose:
print "Change %s is labelled %s" % (change, labelDetails)
files = p4CmdList(["files"] + ["%s...@%s" % (p, change)
for p in self.branchPrefixes])
if len(files) == len(labelRevisions):
cleanedFiles = {}
for info in files:
if info["action"] in self.delete_actions:
cleanedFiles[info["depotFile"]] = info["rev"]
if cleanedFiles == labelRevisions:
self.streamTag(self.gitStream, 'tag_%s' % labelDetails['label'], labelDetails, branch, epoch)
if not self.silent:
print ("Tag %s does not match with change %s: files do not match."
% (labelDetails["label"], change))
if not self.silent:
print ("Tag %s does not match with change %s: file count is different."
% (labelDetails["label"], change))
# Build a dictionary of changelists and labels, for "detect-labels" option.
def getLabels(self):
self.labels = {}
l = p4CmdList(["labels"] + ["%s..." % p for p in self.depotPaths])
if len(l) > 0 and not self.silent:
print "Finding files belonging to labels in %s" % `self.depotPaths`
for output in l:
label = output["label"]
revisions = {}
newestChange = 0
if self.verbose:
print "Querying files for label %s" % label
for file in p4CmdList(["files"] +
["%s...@%s" % (p, label)
for p in self.depotPaths]):
revisions[file["depotFile"]] = file["rev"]
change = int(file["change"])
if change > newestChange:
newestChange = change
self.labels[newestChange] = [output, revisions]
if self.verbose:
print "Label changes: %s" % self.labels.keys()
# Import p4 labels as git tags. A direct mapping does not
# exist, so assume that if all the files are at the same revision
# then we can use that, or it's something more complicated we should
# just ignore.
def importP4Labels(self, stream, p4Labels):
if verbose:
print "import p4 labels: " + ' '.join(p4Labels)
ignoredP4Labels = gitConfigList("git-p4.ignoredP4Labels")
validLabelRegexp = gitConfig("git-p4.labelImportRegexp")
if len(validLabelRegexp) == 0:
validLabelRegexp = defaultLabelRegexp
m = re.compile(validLabelRegexp)
for name in p4Labels:
commitFound = False
if not m.match(name):
if verbose:
print "label %s does not match regexp %s" % (name,validLabelRegexp)
if name in ignoredP4Labels:
labelDetails = p4CmdList(['label', "-o", name])[0]
# get the most recent changelist for each file in this label
change = p4Cmd(["changes", "-m", "1"] + ["%s...@%s" % (p, name)
for p in self.depotPaths])
if change.has_key('change'):
# find the corresponding git commit; take the oldest commit
changelist = int(change['change'])
gitCommit = read_pipe(["git", "rev-list", "--max-count=1",
"--reverse", ":/\[git-p4:.*change = %d\]" % changelist])
if len(gitCommit) == 0:
print "could not find git commit for changelist %d" % changelist
gitCommit = gitCommit.strip()
commitFound = True
# Convert from p4 time format
tmwhen = time.strptime(labelDetails['Update'], "%Y/%m/%d %H:%M:%S")
except ValueError:
print "Could not convert label time %s" % labelDetails['Update']
tmwhen = 1
when = int(time.mktime(tmwhen))
self.streamTag(stream, name, labelDetails, gitCommit, when)
if verbose:
print "p4 label %s mapped to git commit %s" % (name, gitCommit)
if verbose:
print "Label %s has no changelists - possibly deleted?" % name
if not commitFound:
# We can't import this label; don't try again as it will get very
# expensive repeatedly fetching all the files for labels that will
# never be imported. If the label is moved in the future, the
# ignore will need to be removed manually.
system(["git", "config", "--add", "git-p4.ignoredP4Labels", name])
def guessProjectName(self):
for p in self.depotPaths:
if p.endswith("/"):
p = p[:-1]
p = p[p.strip().rfind("/") + 1:]
if not p.endswith("/"):
p += "/"
return p
def getBranchMapping(self):
lostAndFoundBranches = set()
user = gitConfig("git-p4.branchUser")
if len(user) > 0:
command = "branches -u %s" % user
command = "branches"
for info in p4CmdList(command):
details = p4Cmd(["branch", "-o", info["branch"]])
viewIdx = 0
while details.has_key("View%s" % viewIdx):
paths = details["View%s" % viewIdx].split(" ")
viewIdx = viewIdx + 1
# require standard //depot/foo/... //depot/bar/... mapping
if len(paths) != 2 or not paths[0].endswith("/...") or not paths[1].endswith("/..."):
source = paths[0]
destination = paths[1]
if p4PathStartsWith(source, self.depotPaths[0]) and p4PathStartsWith(destination, self.depotPaths[0]):
source = source[len(self.depotPaths[0]):-4]
destination = destination[len(self.depotPaths[0]):-4]
if destination in self.knownBranches:
if not self.silent:
print "p4 branch %s defines a mapping from %s to %s" % (info["branch"], source, destination)
print "but there exists another mapping from %s to %s already!" % (self.knownBranches[destination], destination)
self.knownBranches[destination] = source
if source not in self.knownBranches:
# Perforce does not strictly require branches to be defined, so we also
# check git config for a branch list.
# Example of branch definition in git config file:
# [git-p4]
# branchList=main:branchA
# branchList=main:branchB
# branchList=branchA:branchC
configBranches = gitConfigList("git-p4.branchList")
for branch in configBranches:
if branch:
(source, destination) = branch.split(":")
self.knownBranches[destination] = source
if source not in self.knownBranches:
for branch in lostAndFoundBranches:
self.knownBranches[branch] = branch
def getBranchMappingFromGitBranches(self):
branches = p4BranchesInGit(self.importIntoRemotes)
for branch in branches.keys():
if branch == "master":
branch = "main"
branch = branch[len(self.projectName):]
self.knownBranches[branch] = branch
def updateOptionDict(self, d):
option_keys = {}
if self.keepRepoPath:
option_keys['keepRepoPath'] = 1
d["options"] = ' '.join(sorted(option_keys.keys()))
def readOptions(self, d):
self.keepRepoPath = (d.has_key('options')
and ('keepRepoPath' in d['options']))
def gitRefForBranch(self, branch):
if branch == "main":
return self.refPrefix + "master"
if len(branch) <= 0:
return branch
return self.refPrefix + self.projectName + branch
def gitCommitByP4Change(self, ref, change):
if self.verbose:
print "looking in ref " + ref + " for change %s using bisect..." % change
earliestCommit = ""
latestCommit = parseRevision(ref)
while True:
if self.verbose:
print "trying: earliest %s latest %s" % (earliestCommit, latestCommit)
next = read_pipe("git rev-list --bisect %s %s" % (latestCommit, earliestCommit)).strip()
if len(next) == 0:
if self.verbose:
print "argh"
return ""
log = extractLogMessageFromGitCommit(next)
settings = extractSettingsGitLog(log)
currentChange = int(settings['change'])
if self.verbose:
print "current change %s" % currentChange
if currentChange == change:
if self.verbose:
print "found %s" % next
return next
if currentChange < change:
earliestCommit = "^%s" % next
latestCommit = "%s" % next
return ""
def importNewBranch(self, branch, maxChange):
# make fast-import flush all changes to disk and update the refs using the checkpoint
# command so that we can try to find the branch parent in the git history
branchPrefix = self.depotPaths[0] + branch + "/"
range = "@1,%s" % maxChange
#print "prefix" + branchPrefix
changes = p4ChangesForPaths([branchPrefix], range)
if len(changes) <= 0:
return False
firstChange = changes[0]
#print "first change in branch: %s" % firstChange
sourceBranch = self.knownBranches[branch]
sourceDepotPath = self.depotPaths[0] + sourceBranch
sourceRef = self.gitRefForBranch(sourceBranch)
#print "source " + sourceBranch
branchParentChange = int(p4Cmd(["changes", "-m", "1", "%s...@1,%s" % (sourceDepotPath, firstChange)])["change"])
#print "branch parent: %s" % branchParentChange
gitParent = self.gitCommitByP4Change(sourceRef, branchParentChange)
if len(gitParent) > 0:
self.initialParents[self.gitRefForBranch(branch)] = gitParent
#print "parent git commit: %s" % gitParent
return True
def searchParent(self, parent, branch, target):
parentFound = False
for blob in read_pipe_lines(["git", "rev-list", "--reverse", "--no-merges", parent]):
blob = blob.strip()
if len(read_pipe(["git", "diff-tree", blob, target])) == 0:
parentFound = True
if self.verbose:
print "Found parent of %s in commit %s" % (branch, blob)
if parentFound:
return blob
return None
def importChanges(self, changes):
cnt = 1
for change in changes:
description = p4_describe(change)
if not self.silent:
sys.stdout.write("\rImporting revision %s (%s%%)" % (change, cnt * 100 / len(changes)))
cnt = cnt + 1
if self.detectBranches:
branches = self.splitFilesIntoBranches(description)
for branch in branches.keys():
## HACK --hwn
branchPrefix = self.depotPaths[0] + branch + "/"
self.branchPrefixes = [ branchPrefix ]
parent = ""
filesForCommit = branches[branch]
if self.verbose:
print "branch is %s" % branch
if branch not in self.createdBranches:
parent = self.knownBranches[branch]
if parent == branch:
parent = ""
fullBranch = self.projectName + branch
if fullBranch not in self.p4BranchesInGit:
if not self.silent:
print("\n Importing new branch %s" % fullBranch);
if self.importNewBranch(branch, change - 1):
parent = ""
if not self.silent:
print("\n Resuming with change %s" % change);
if self.verbose:
print "parent determined through known branches: %s" % parent
branch = self.gitRefForBranch(branch)
parent = self.gitRefForBranch(parent)
if self.verbose:
print "looking for initial parent for %s; current parent is %s" % (branch, parent)
if len(parent) == 0 and branch in self.initialParents:
parent = self.initialParents[branch]
del self.initialParents[branch]
blob = None
if len(parent) > 0:
tempBranch = os.path.join(self.tempBranchLocation, "%d" % (change))
if self.verbose:
print "Creating temporary branch: " + tempBranch
self.commit(description, filesForCommit, tempBranch)
blob = self.searchParent(parent, branch, tempBranch)
if blob:
self.commit(description, filesForCommit, branch, blob)
if self.verbose:
print "Parent of %s not found. Committing into head of %s" % (branch, parent)
self.commit(description, filesForCommit, branch, parent)
files = self.extractFilesFromCommit(description)
self.commit(description, files, self.branch,
# only needed once, to connect to the previous commit
self.initialParent = ""
except IOError:
def importHeadRevision(self, revision):
print "Doing initial import of %s from revision %s into %s" % (' '.join(self.depotPaths), revision, self.branch)
details = {}
details["user"] = "git perforce import user"
details["desc"] = ("Initial import of %s from the state at revision %s\n"
% (' '.join(self.depotPaths), revision))
details["change"] = revision
newestRevision = 0
fileCnt = 0
fileArgs = ["%s...%s" % (p,revision) for p in self.depotPaths]
for info in p4CmdList(["files"] + fileArgs):
if 'code' in info and info['code'] == 'error':
sys.stderr.write("p4 returned an error: %s\n"
% info['data'])
if info['data'].find("must refer to client") >= 0:
sys.stderr.write("This particular p4 error is misleading.\n")
sys.stderr.write("Perhaps the depot path was misspelled.\n");
sys.stderr.write("Depot path: %s\n" % " ".join(self.depotPaths))
if 'p4ExitCode' in info:
sys.stderr.write("p4 exitcode: %s\n" % info['p4ExitCode'])
change = int(info["change"])
if change > newestRevision:
newestRevision = change
if info["action"] in self.delete_actions:
# don't increase the file cnt, otherwise details["depotFile123"] will have gaps!
#fileCnt = fileCnt + 1
for prop in ["depotFile", "rev", "action", "type" ]:
details["%s%s" % (prop, fileCnt)] = info[prop]
fileCnt = fileCnt + 1
details["change"] = newestRevision
# Use time from top-most change so that all git p4 clones of
# the same p4 repo have the same commit SHA1s.
res = p4_describe(newestRevision)
details["time"] = res["time"]
self.commit(details, self.extractFilesFromCommit(details), self.branch)
except IOError:
print "IO error with git fast-import. Is your git version recent enough?"
def run(self, args):
self.depotPaths = []
self.changeRange = ""
self.previousDepotPaths = []
self.hasOrigin = False
# map from branch depot path to parent branch
self.knownBranches = {}
self.initialParents = {}
if self.importIntoRemotes:
self.refPrefix = "refs/remotes/p4/"
self.refPrefix = "refs/heads/p4/"
if self.syncWithOrigin:
self.hasOrigin = originP4BranchesExist()
if self.hasOrigin:
if not self.silent:
print 'Syncing with origin first, using "git fetch origin"'
system("git fetch origin")
branch_arg_given = bool(self.branch)
if len(self.branch) == 0:
self.branch = self.refPrefix + "master"
if gitBranchExists("refs/heads/p4") and self.importIntoRemotes:
system("git update-ref %s refs/heads/p4" % self.branch)
system("git branch -D p4")
# accept either the command-line option, or the configuration variable
if self.useClientSpec:
# will use this after clone to set the variable
self.useClientSpec_from_options = True
if gitConfig("git-p4.useclientspec", "--bool") == "true":
self.useClientSpec = True
if self.useClientSpec:
self.clientSpecDirs = getClientSpec()
# TODO: should always look at previous commits,
# merge with previous imports, if possible.
if args == []:
if self.hasOrigin:
createOrUpdateBranchesFromOrigin(self.refPrefix, self.silent)
# branches holds mapping from branch name to sha1
branches = p4BranchesInGit(self.importIntoRemotes)
# restrict to just this one, disabling detect-branches
if branch_arg_given:
short = self.branch.split("/")[-1]
if short in branches:
self.p4BranchesInGit = [ short ]
self.p4BranchesInGit = branches.keys()
if len(self.p4BranchesInGit) > 1:
if not self.silent:
print "Importing from/into multiple branches"
self.detectBranches = True
for branch in branches.keys():
self.initialParents[self.refPrefix + branch] = \
if self.verbose:
print "branches: %s" % self.p4BranchesInGit
p4Change = 0
for branch in self.p4BranchesInGit:
logMsg = extractLogMessageFromGitCommit(self.refPrefix + branch)
settings = extractSettingsGitLog(logMsg)
if (settings.has_key('depot-paths')
and settings.has_key ('change')):
change = int(settings['change']) + 1
p4Change = max(p4Change, change)
depotPaths = sorted(settings['depot-paths'])
if self.previousDepotPaths == []:
self.previousDepotPaths = depotPaths
paths = []
for (prev, cur) in zip(self.previousDepotPaths, depotPaths):
prev_list = prev.split("/")
cur_list = cur.split("/")
for i in range(0, min(len(cur_list), len(prev_list))):
if cur_list[i] <> prev_list[i]:
i = i - 1
paths.append ("/".join(cur_list[:i + 1]))
self.previousDepotPaths = paths
if p4Change > 0:
self.depotPaths = sorted(self.previousDepotPaths)
self.changeRange = "@%s,#head" % p4Change
if not self.silent and not self.detectBranches:
print "Performing incremental import into %s git branch" % self.branch
# accept multiple ref name abbreviations:
# refs/foo/bar/branch -> use it exactly
# p4/branch -> prepend refs/remotes/ or refs/heads/
# branch -> prepend refs/remotes/p4/ or refs/heads/p4/
if not self.branch.startswith("refs/"):
if self.importIntoRemotes:
prepend = "refs/remotes/"
prepend = "refs/heads/"
if not self.branch.startswith("p4/"):
prepend += "p4/"
self.branch = prepend + self.branch
if len(args) == 0 and self.depotPaths:
if not self.silent:
print "Depot paths: %s" % ' '.join(self.depotPaths)
if self.depotPaths and self.depotPaths != args:
print ("previous import used depot path %s and now %s was specified. "
"This doesn't work!" % (' '.join (self.depotPaths),
' '.join (args)))
self.depotPaths = sorted(args)
revision = ""
self.users = {}
# Make sure no revision specifiers are used when --changesfile
# is specified.
bad_changesfile = False
if len(self.changesFile) > 0:
for p in self.depotPaths:
if p.find("@") >= 0 or p.find("#") >= 0:
bad_changesfile = True
if bad_changesfile:
die("Option --changesfile is incompatible with revision specifiers")
newPaths = []
for p in self.depotPaths:
if p.find("@") != -1:
atIdx = p.index("@")
self.changeRange = p[atIdx:]
if self.changeRange == "@all":
self.changeRange = ""
elif ',' not in self.changeRange:
revision = self.changeRange
self.changeRange = ""
p = p[:atIdx]
elif p.find("#") != -1:
hashIdx = p.index("#")
revision = p[hashIdx:]
p = p[:hashIdx]
elif self.previousDepotPaths == []:
# pay attention to changesfile, if given, else import
# the entire p4 tree at the head revision
if len(self.changesFile) == 0:
revision = "#head"
p = re.sub ("\.\.\.$", "", p)
if not p.endswith("/"):
p += "/"
self.depotPaths = newPaths
# --detect-branches may change this for each branch
self.branchPrefixes = self.depotPaths
self.labels = {}
if self.detectLabels:
if self.detectBranches:
## FIXME - what's a P4 projectName ?
self.projectName = self.guessProjectName()
if self.hasOrigin:
if self.verbose:
print "p4-git branches: %s" % self.p4BranchesInGit
print "initial parents: %s" % self.initialParents
for b in self.p4BranchesInGit:
if b != "master":
b = b[len(self.projectName):]
self.createdBranches.add(b) = "%+03d%02d" % (- time.timezone / 3600, ((- time.timezone % 3600) / 60))
self.importProcess = subprocess.Popen(["git", "fast-import"],
self.gitOutput = self.importProcess.stdout
self.gitStream = self.importProcess.stdin
self.gitError = self.importProcess.stderr
if revision:
changes = []
if len(self.changesFile) > 0:
output = open(self.changesFile).readlines()
changeSet = set()
for line in output:
for change in changeSet:
# catch "git p4 sync" with no new branches, in a repo that
# does not have any existing p4 branches
if len(args) == 0:
if not self.p4BranchesInGit:
die("No remote p4 branches. Perhaps you never did \"git p4 clone\" in here.")
# The default branch is master, unless --branch is used to
# specify something else. Make sure it exists, or complain
# nicely about how to use --branch.
if not self.detectBranches:
if not branch_exists(self.branch):
if branch_arg_given:
die("Error: branch %s does not exist." % self.branch)
die("Error: no branch %s; perhaps specify one with --branch." %
if self.verbose:
print "Getting p4 changes for %s...%s" % (', '.join(self.depotPaths),
changes = p4ChangesForPaths(self.depotPaths, self.changeRange)
if len(self.maxChanges) > 0:
changes = changes[:min(int(self.maxChanges), len(changes))]
if len(changes) == 0:
if not self.silent:
print "No changes to import!"
if not self.silent and not self.detectBranches:
print "Import destination: %s" % self.branch
self.updatedBranches = set()
if not self.detectBranches:
if args:
# start a new branch
self.initialParent = ""
# build on a previous revision
self.initialParent = parseRevision(self.branch)
if not self.silent:
print ""
if len(self.updatedBranches) > 0:
sys.stdout.write("Updated branches: ")
for b in self.updatedBranches:
sys.stdout.write("%s " % b)
if gitConfig("git-p4.importLabels", "--bool") == "true":
self.importLabels = True
if self.importLabels:
p4Labels = getP4Labels(self.depotPaths)
gitTags = getGitTags()
missingP4Labels = p4Labels - gitTags
self.importP4Labels(self.gitStream, missingP4Labels)
if self.importProcess.wait() != 0:
die("fast-import failed: %s" %
# Cleanup temporary branches created during import
if self.tempBranches != []:
for branch in self.tempBranches:
read_pipe("git update-ref -d %s" % branch)
os.rmdir(os.path.join(os.environ.get("GIT_DIR", ".git"), self.tempBranchLocation))
# Create a symbolic ref p4/HEAD pointing to p4/<branch> to allow
# a convenient shortcut refname "p4".
if self.importIntoRemotes:
head_ref = self.refPrefix + "HEAD"
if not gitBranchExists(head_ref) and gitBranchExists(self.branch):
system(["git", "symbolic-ref", head_ref, self.branch])
return True
class P4Rebase(Command):
def __init__(self):
self.options = [
optparse.make_option("--import-labels", dest="importLabels", action="store_true"),
self.importLabels = False
self.description = ("Fetches the latest revision from perforce and "
+ "rebases the current work (branch) against it")
def run(self, args):
sync = P4Sync()
sync.importLabels = self.importLabels[])
return self.rebase()
def rebase(self):
if os.system("git update-index --refresh") != 0:
die("Some files in your working directory are modified and different than what is in your index. You can use git update-index <filename> to bring the index up-to-date or stash away all your changes with git stash.");
if len(read_pipe("git diff-index HEAD --")) > 0:
die("You have uncommited changes. Please commit them before rebasing or stash them away with git stash.");
[upstream, settings] = findUpstreamBranchPoint()
if len(upstream) == 0:
die("Cannot find upstream branchpoint for rebase")
# the branchpoint may be p4/foo~3, so strip off the parent
upstream = re.sub("~[0-9]+$", "", upstream)
print "Rebasing the current branch onto %s" % upstream
oldHead = read_pipe("git rev-parse HEAD").strip()
system("git rebase %s" % upstream)
system("git diff-tree --stat --summary -M %s HEAD" % oldHead)
return True
class P4Clone(P4Sync):
def __init__(self):
self.description = "Creates a new git repository and imports from Perforce into it"
self.usage = "usage: %prog [options] //depot/path[@revRange]"
self.options += [
optparse.make_option("--destination", dest="cloneDestination",
action='store', default=None,
help="where to leave result of the clone"),
optparse.make_option("-/", dest="cloneExclude",
action="append", type="string",
help="exclude depot path"),
optparse.make_option("--bare", dest="cloneBare",
action="store_true", default=False),
self.cloneDestination = None
self.needsGit = False
self.cloneBare = False
# This is required for the "append" cloneExclude action
def ensure_value(self, attr, value):
if not hasattr(self, attr) or getattr(self, attr) is None:
setattr(self, attr, value)
return getattr(self, attr)
def defaultDestination(self, args):
## TODO: use common prefix of args?
depotPath = args[0]
depotDir = re.sub("(@[^@]*)$", "", depotPath)
depotDir = re.sub("(#[^#]*)$", "", depotDir)
depotDir = re.sub(r"\.\.\.$", "", depotDir)
depotDir = re.sub(r"/$", "", depotDir)
return os.path.split(depotDir)[1]
def run(self, args):
if len(args) < 1:
return False
if self.keepRepoPath and not self.cloneDestination:
sys.stderr.write("Must specify destination for --keep-path\n")
depotPaths = args
if not self.cloneDestination and len(depotPaths) > 1:
self.cloneDestination = depotPaths[-1]
depotPaths = depotPaths[:-1]
self.cloneExclude = ["/"+p for p in self.cloneExclude]
for p in depotPaths:
if not p.startswith("//"):
return False
if not self.cloneDestination:
self.cloneDestination = self.defaultDestination(args)
print "Importing from %s into %s" % (', '.join(depotPaths), self.cloneDestination)
if not os.path.exists(self.cloneDestination):
init_cmd = [ "git", "init" ]
if self.cloneBare:
if not, depotPaths):
return False
# create a master branch and check out a work tree
if gitBranchExists(self.branch):
system([ "git", "branch", "master", self.branch ])
if not self.cloneBare:
system([ "git", "checkout", "-f" ])