#!/usr/bin/env python
#
# git-p4.py -- A tool for bidirectional operation between a Perforce depot and git.
#
# Author: Simon Hausmann <simon@lst.de>
# Copyright: 2007 Simon Hausmann <simon@lst.de>
# 2007 Trolltech ASA
# License: MIT <http://www.opensource.org/licenses/mit-license.php>
#
import optparse, sys, os, marshal, subprocess, shelve
import tempfile, getopt, os.path, time, platform
import re
verbose = False
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 = "%s " % "p4"
user = gitConfig("git-p4.user")
if len(user) > 0:
real_cmd += "-u %s " % user
password = gitConfig("git-p4.password")
if len(password) > 0:
real_cmd += "-P %s " % password
port = gitConfig("git-p4.port")
if len(port) > 0:
real_cmd += "-p %s " % port
host = gitConfig("git-p4.host")
if len(host) > 0:
real_cmd += "-h %s " % host
client = gitConfig("git-p4.client")
if len(client) > 0:
real_cmd += "-c %s " % client
real_cmd += "%s" % (cmd)
if verbose:
print real_cmd
return real_cmd
def chdir(dir):
if os.name == 'nt':
os.environ['PWD']=dir
os.chdir(dir)
def die(msg):
if verbose:
raise Exception(msg)
else:
sys.stderr.write(msg + "\n")
sys.exit(1)
def write_pipe(c, str):
if verbose:
sys.stderr.write('Writing pipe: %s\n' % c)
pipe = os.popen(c, 'w')
val = pipe.write(str)
if pipe.close():
die('Command failed: %s' % c)
return val
def p4_write_pipe(c, str):
real_cmd = p4_build_cmd(c)
return write_pipe(real_cmd, str)
def read_pipe(c, ignore_error=False):
if verbose:
sys.stderr.write('Reading pipe: %s\n' % c)
pipe = os.popen(c, 'rb')
val = pipe.read()
if pipe.close() and not ignore_error:
die('Command failed: %s' % 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' % c)
## todo: check return status
pipe = os.popen(c, 'rb')
val = pipe.readlines()
if pipe.close():
die('Command failed: %s' % 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 system(cmd):
if verbose:
sys.stderr.write("executing %s\n" % cmd)
if os.system(cmd) != 0:
die("command failed: %s" % cmd)
def p4_system(cmd):
"""Specifically invoke p4 as the system command. """
real_cmd = p4_build_cmd(cmd)
return system(real_cmd)
def isP4Exec(kind):
"""Determine if a Perforce 'kind' should have execute permission
'p4 help filetypes' gives a list of the types. If it starts with 'x',
or x follows one of a few letters. Otherwise, if there is an 'x' after
a plus sign, it is also executable"""
return (re.search(r"(^[cku]?x)|\+.*x", kind) != None)
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_system("reopen -t %s %s" % (p4Type, file))
def getP4OpenedType(file):
# Returns the perforce file type for the given file.
result = p4_read_pipe("opened %s" % file)
match = re.match(".*\((.+)\)\r?$", result)
if match:
return match.group(1)
else:
die("Could not determine file type for %s (result: '%s')" % (file, result))
def diffTreePattern():
# This is a simple generator for the diff tree regex pattern. This could be
# a class variable if this and parseDiffTreeEntry were a part of a class.
pattern = re.compile(':(\d+) (\d+) (\w+) (\w+) ([A-Z])(\d+)?\t(.*?)((\t(.*))|$)')
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 {
'src_mode': match.group(1),
'dst_mode': match.group(2),
'src_sha1': match.group(3),
'dst_sha1': match.group(4),
'status': match.group(5),
'status_score': match.group(6),
'src': match.group(7),
'dst': match.group(10)
}
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):
cmd = p4_build_cmd("-G %s" % (cmd))
if verbose:
sys.stderr.write("Opening pipe: %s\n" % 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)
stdin_file.write(stdin)
stdin_file.flush()
stdin_file.seek(0)
p4 = subprocess.Popen(cmd, shell=True,
stdin=stdin_file,
stdout=subprocess.PIPE)
result = []
try:
while True:
entry = marshal.load(p4.stdout)
if cb is not None:
cb(entry)
else:
result.append(entry)
except EOFError:
pass
exitCode = p4.wait()
if exitCode != 0:
entry = {}
entry["p4ExitCode"] = exitCode
result.append(entry)
return result
def p4Cmd(cmd):
list = p4CmdList(cmd)
result = {}
for entry in list:
result.update(entry)
return result;
def p4Where(depotPath):
if not depotPath.endswith("/"):
depotPath += "/"
depotPath = depotPath + "..."
outputList = p4CmdList("where %s" % depotPath)
output = None
for entry in outputList:
if "depotFile" in entry:
if entry["depotFile"] == depotPath:
output = entry
break
elif "data" in entry:
data = entry.get("data")
space = data.find(" ")
if data[:space] == depotPath:
output = entry
break
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 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
continue
logMessage += log
return logMessage
def extractSettingsGitLog(log):
values = {}
for line in log.split("\n"):
line = line.strip()
m = re.search (r"^ *\[git-p4: (.*)\]$", line)
if not m:
continue
assignments = m.group(1).split (':')
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 p4BranchesInGit(branchesAreInRemotes = True):
branches = {}
cmdline = "git rev-parse --symbolic "
if branchesAreInRemotes:
cmdline += " --remotes"
else:
cmdline += " --branches"
for line in read_pipe_lines(cmdline):
line = line.strip()
## only import to p4/
if not line.startswith('p4/') or line == "p4/HEAD":
continue
branch = line
# strip off p4
branch = re.sub ("^p4/", "", line)
branches[branch] = parseRevision(line)
return branches
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"):
continue
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')):
continue
update = False
if not gitBranchExists(remoteHead):
if verbose:
print "creating %s" % remoteHead
update = True
else:
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
else:
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
output = p4_read_pipe_lines("changes " + ' '.join (["%s...%s" % (p, changeRange)
for p in depotPaths]))
changes = {}
for line in output:
changeNum = int(line.split(" ")[1])
changes[changeNum] = True
changelist = changes.keys()
changelist.sort()
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)
class Command:
def __init__(self):
self.usage = "usage: %prog [options]"
self.needsGit = True
class P4Debug(Command):
def __init__(self):
Command.__init__(self)
self.options = [
optparse.make_option("--verbose", dest="verbose", action="store_true",
default=False),
]
self.description = "A tool to debug the output of p4 -G."
self.needsGit = False
self.verbose = False
def run(self, args):
j = 0
for output in p4CmdList(" ".join(args)):
print 'Element: %d' % j
j += 1
print output
return True
class P4RollBack(Command):
def __init__(self):
Command.__init__(self)
self.options = [
optparse.make_option("--verbose", dest="verbose", action="store_true"),
optparse.make_option("--local", dest="rollbackLocalBranches", action="store_true")
]
self.description = "A tool to debug the multi-branch import. Don't use :)"
self.verbose = False
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")
else:
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))
continue
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):
def __init__(self):
Command.__init__(self)
self.options = [
optparse.make_option("--verbose", dest="verbose", action="store_true"),
optparse.make_option("--origin", dest="origin"),
optparse.make_option("-M", dest="detectRenames", action="store_true"),
]
self.description = "Submit changes from git to the perforce depot."
self.usage += " [name of git branch to submit into perforce depot]"
self.interactive = True
self.origin = ""
self.detectRenames = False
self.verbose = False
self.isWindows = (platform.system() == "Windows")
def check(self):
if len(p4CmdList("opened ...")) > 0:
die("You have files opened with perforce! Close them before starting the sync.")
# replaces everything between 'Description:' and the next P4 submit template field with the
# commit message
def prepareLogMessage(self, template, message):
result = ""
inDescriptionSection = False
for line in template.split("\n"):
if line.startswith("#"):
result += line + "\n"
continue
if inDescriptionSection:
if line.startswith("Files:") or line.startswith("Jobs:"):
inDescriptionSection = False
else:
continue
else:
if line.startswith("Description:"):
inDescriptionSection = True
line += "\n"
for messageLine in message.split("\n"):
line += "\t" + messageLine + "\n"
result += line + "\n"
return result
def prepareSubmitTemplate(self):
# 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):
continue
else:
inFilesSection = False
else:
if line.startswith("Files:"):
inFilesSection = True
template += line
return template
def applyCommit(self, id):
print "Applying %s" % (read_pipe("git log --max-count=1 --pretty=oneline %s" % id))
if not self.detectRenames:
# If not explicitly set check the config variable
self.detectRenames = gitConfig("git-p4.detectRenames").lower() == "true"
if self.detectRenames:
diffOpts = "-M"
else:
diffOpts = ""
if gitConfig("git-p4.detectCopies").lower() == "true":
diffOpts += " -C"
if gitConfig("git-p4.detectCopiesHarder").lower() == "true":
diffOpts += " --find-copies-harder"
diff = read_pipe_lines("git diff-tree -r %s \"%s^\" \"%s\"" % (diffOpts, id, id))
filesToAdd = set()
filesToDelete = set()
editedFiles = set()
filesToChangeExecBit = {}
for line in diff:
diff = parseDiffTreeEntry(line)
modifier = diff['status']
path = diff['src']
if modifier == "M":
p4_system("edit \"%s\"" % path)
if isModeExecChanged(diff['src_mode'], diff['dst_mode']):
filesToChangeExecBit[path] = diff['dst_mode']
editedFiles.add(path)
elif modifier == "A":
filesToAdd.add(path)
filesToChangeExecBit[path] = diff['dst_mode']
if path in filesToDelete:
filesToDelete.remove(path)
elif modifier == "D":
filesToDelete.add(path)
if path in filesToAdd:
filesToAdd.remove(path)
elif modifier == "C":
src, dest = diff['src'], diff['dst']
p4_system("integrate -Dt \"%s\" \"%s\"" % (src, dest))
if diff['src_sha1'] != diff['dst_sha1']:
p4_system("edit \"%s\"" % (dest))
if isModeExecChanged(diff['src_mode'], diff['dst_mode']):
p4_system("edit \"%s\"" % (dest))
filesToChangeExecBit[dest] = diff['dst_mode']
os.unlink(dest)
editedFiles.add(dest)
elif modifier == "R":
src, dest = diff['src'], diff['dst']
p4_system("integrate -Dt \"%s\" \"%s\"" % (src, dest))
if diff['src_sha1'] != diff['dst_sha1']:
p4_system("edit \"%s\"" % (dest))
if isModeExecChanged(diff['src_mode'], diff['dst_mode']):
p4_system("edit \"%s\"" % (dest))
filesToChangeExecBit[dest] = diff['dst_mode']
os.unlink(dest)
editedFiles.add(dest)
filesToDelete.add(src)
else:
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 -"
if os.system(tryPatchCmd) != 0:
print "Unfortunately applying the change failed!"
print "What do you want to do?"
response = "x"
while response != "s" and response != "a" and response != "w":
response = raw_input("[s]kip this patch / [a]pply the patch forcibly "
"and with .rej files / [w]rite the patch to a file (patch.txt) ")
if response == "s":
print "Skipping! Good luck with the next patches..."
for f in editedFiles:
p4_system("revert \"%s\"" % f);
for f in filesToAdd:
system("rm %s" %f)
return
elif response == "a":
os.system(applyPatchCmd)
if len(filesToAdd) > 0:
print "You may also want to call p4 add on the following files:"
print " ".join(filesToAdd)
if len(filesToDelete):
print "The following files should be scheduled for deletion with p4 delete:"
print " ".join(filesToDelete)
die("Please resolve and submit the conflict manually and "
+ "continue afterwards with git-p4 submit --continue")
elif response == "w":
system(diffcmd + " > patch.txt")
print "Patch saved to patch.txt in %s !" % self.clientPath
die("Please resolve and submit the conflict manually and "
"continue afterwards with git-p4 submit --continue")
system(applyPatchCmd)
for f in filesToAdd:
p4_system("add \"%s\"" % f)
for f in filesToDelete:
p4_system("revert \"%s\"" % f)
p4_system("delete \"%s\"" % f)
# Set/clear executable bits
for f in filesToChangeExecBit.keys():
mode = filesToChangeExecBit[f]
setP4ExecBit(f, mode)
logMessage = extractLogMessageFromGitCommit(id)
logMessage = logMessage.strip()
template = self.prepareSubmitTemplate()
if self.interactive:
submitTemplate = self.prepareLogMessage(template, logMessage)
if os.environ.has_key("P4DIFF"):
del(os.environ["P4DIFF"])
diff = ""
for editedFile in editedFiles:
diff += p4_read_pipe("diff -du %r" % editedFile)
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
f.close()
separatorLine = "######## everything below this line is just the diff #######\n"
[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)
tmpFile.close()
mtime = os.stat(fileName).st_mtime
if os.environ.has_key("P4EDITOR"):
editor = os.environ.get("P4EDITOR")
else:
editor = read_pipe("git var GIT_EDITOR").strip()
system(editor + " " + fileName)
response = "y"
if os.stat(fileName).st_mtime <= mtime:
response = "x"
while response != "y" and response != "n":
response = raw_input("Submit template unchanged. Submit anyway? [y]es, [n]o (skip this patch) ")
if response == "y":
tmpFile = open(fileName, "rb")
message = tmpFile.read()
tmpFile.close()
submitTemplate = message[:message.index(separatorLine)]
if self.isWindows:
submitTemplate = submitTemplate.replace("\r\n", "\n")
p4_write_pipe("submit -i", submitTemplate)
else:
for f in editedFiles:
p4_system("revert \"%s\"" % f);
for f in filesToAdd:
p4_system("revert \"%s\"" % f);
system("rm %s" %f)
os.remove(fileName)
else:
fileName = "submit.txt"
file = open(fileName, "w+")
file.write(self.prepareLogMessage(template, logMessage))
file.close()
print ("Perforce submit template written as %s. "
+ "Please review/edit and then use p4 submit -i < %s to submit directly!"
% (fileName, fileName))
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]
else:
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.verbose:
print "Origin branch is " + self.origin
if len(self.depotPath) == 0:
print "Internal error: cannot locate perforce depot path from existing branches"
sys.exit(128)
self.clientPath = p4Where(self.depotPath)
if len(self.clientPath) == 0:
print "Error: Cannot locate perforce checkout of %s in client view" % self.depotPath
sys.exit(128)
print "Perforce checkout for depot path %s located at %s" % (self.depotPath, self.clientPath)
self.oldWorkingDirectory = os.getcwd()
chdir(self.clientPath)
print "Synchronizing p4 checkout..."
p4_system("sync ...")
self.check()
commits = []
for line in read_pipe_lines("git rev-list --no-merges %s..%s" % (self.origin, self.master)):
commits.append(line.strip())
commits.reverse()
while len(commits) > 0:
commit = commits[0]
commits = commits[1:]
self.applyCommit(commit)
if not self.interactive:
break
if len(commits) == 0:
print "All changes applied!"
chdir(self.oldWorkingDirectory)
sync = P4Sync()
sync.run([])
rebase = P4Rebase()
rebase.rebase()
return True
class P4Sync(Command):
delete_actions = ( "delete", "move/delete", "purge" )
def __init__(self):
Command.__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("--verbose", dest="verbose", 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
example:
//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.changesFile = ""
self.syncWithOrigin = True
self.verbose = False
self.importIntoRemotes = True
self.maxChanges = ""
self.isWindows = (platform.system() == "Windows")
self.keepRepoPath = False
self.depotPaths = None
self.p4BranchesInGit = []
self.cloneExclude = []
self.useClientSpec = False
self.clientSpecDirs = []
if gitConfig("git-p4.syncFromOrigin") == "false":
self.syncWithOrigin = False
#
# 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.
# Search for and fix just these four characters. Do % last so
# that fixing it does not inadvertently create new %-escapes.
#
def wildcard_decode(self, path):
# Cannot have * in a filename in windows; untested as to
# what p4 would do in such a case.
if not self.isWindows:
path = path.replace("%2A", "*")
path = path.replace("%23", "#") \
.replace("%40", "@") \
.replace("%25", "%")
return path
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
else:
found = [p for p in self.depotPaths
if p4PathStartsWith(path, p)]
if not found:
fnum = fnum + 1
continue
file = {}
file["path"] = path
file["rev"] = commit["rev%s" % fnum]
file["action"] = commit["action%s" % fnum]
file["type"] = commit["type%s" % fnum]
files.append(file)
fnum = fnum + 1
return files
def stripRepoPath(self, path, prefixes):
if self.useClientSpec:
# if using the client spec, we use the output directory
# specified in the client. For example, a view
# //depot/foo/branch/... //client/branch/foo/...
# will end up putting all foo/branch files into
# branch/foo/
for val in self.clientSpecDirs:
if path.startswith(val[0]):
# replace the depot path with the client path
path = path.replace(val[0], val[1][1])
# now strip out the client (//client/...)
path = re.sub("^(//[^/]+/)", '', path)
# the rest is all path
return path
if self.keepRepoPath:
prefixes = [re.sub("^(//[^/]+/).*", r'\1', prefixes[0])]
for p in prefixes:
if p4PathStartsWith(path, p):
path = path[len(p):]
return path
def splitFilesIntoBranches(self, commit):
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
continue
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
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
if relPath.startswith(branch + "/"):
if branch not in branches:
branches[branch] = []
branches[branch].append(file)
break
return branches
# output one file from the P4 stream
# - helper for streamP4Files
def streamOneP4File(self, file, contents):
if file["type"] == "apple":
print "\nfile %s is a strange apple file that forks. Ignoring" % \
file['depotFile']
return
relPath = self.stripRepoPath(file['depotFile'], self.branchPrefixes)
relPath = self.wildcard_decode(relPath)
if verbose:
sys.stderr.write("%s\n" % relPath)
mode = "644"
if isP4Exec(file["type"]):
mode = "755"
elif file["type"] == "symlink":
mode = "120000"
# p4 print on a symlink contains "target\n", so strip it off
data = ''.join(contents)
contents = [data[:-1]]
if self.isWindows and file["type"].endswith("text"):
mangled = []
for data in contents:
data = data.replace("\r\n", "\n")
mangled.append(data)
contents = mangled
if file['type'] in ('text+ko', 'unicode+ko', 'binary+ko'):
contents = map(lambda text: re.sub(r'(?i)\$(Id|Header):[^$]*\$',r'$\1$', text), contents)
elif file['type'] in ('text+k', 'ktext', 'kxtext', 'unicode+k', 'binary+k'):
contents = map(lambda text: re.sub(r'\$(Id|Header|Author|Date|DateTime|Change|File|Revision):[^$\n]*\$',r'$\1$', text), contents)
self.gitStream.write("M %s inline %s\n" % (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:
self.gitStream.write(d)
self.gitStream.write("\n")
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):
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_contents.append(marshalled['data'])
else:
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:
includeFile = True
for val in self.clientSpecDirs:
if f['path'].startswith(val[0]):
if val[1][0] <= 0:
includeFile = False
break
if includeFile:
filesForCommit.append(f)
if f['action'] in self.delete_actions:
filesToDelete.append(f)
else:
filesToRead.append(f)
# deleted files...
for f in filesToDelete:
self.streamOneP4Deletion(f)
if len(filesToRead) > 0:
self.stream_file = {}
self.stream_contents = []
self.stream_have_file_info = False
# curry self argument
def streamP4FilesCbSelf(entry):
self.streamP4FilesCb(entry)
p4CmdList("-x - print",
'\n'.join(['%s#%s' % (f['path'], f['rev'])
for f in filesToRead]),
cb=streamP4FilesCbSelf)
# do the last chunk
if self.stream_file.has_key('depotFile'):
self.streamOneP4File(self.stream_file, self.stream_contents)
def commit(self, details, files, branch, branchPrefixes, parent = ""):
epoch = details["time"]
author = details["user"]
self.branchPrefixes = branchPrefixes
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 branchPrefixes if p4PathStartsWith(f['path'], p)]:
new_files.append (f)
else:
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"])
self.committedChanges.add(int(details["change"]))
committer = ""
if author not in self.users:
self.getUserMapFromPerforceServer()
if author in self.users:
committer = "%s %s %s" % (self.users[author], epoch, self.tz)
else:
committer = "%s <a@b> %s %s" % (author, epoch, self.tz)
self.gitStream.write("committer %s\n" % committer)
self.gitStream.write("data <<EOT\n")
self.gitStream.write(details["desc"])
self.gitStream.write("\n[git-p4: depot-paths = \"%s\": change = %s"
% (','.join (branchPrefixes), details["change"]))
if len(details['options']) > 0:
self.gitStream.write(": options = %s" % details['options'])
self.gitStream.write("]\nEOT\n\n")
if len(parent) > 0:
if self.verbose:
print "parent %s" % parent
self.gitStream.write("from %s\n" % parent)
self.streamP4Files(new_files)
self.gitStream.write("\n")
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 " + ' '.join (["%s...@%s" % (p, change)
for p in branchPrefixes]))
if len(files) == len(labelRevisions):
cleanedFiles = {}
for info in files:
if info["action"] in self.delete_actions:
continue
cleanedFiles[info["depotFile"]] = info["rev"]
if cleanedFiles == labelRevisions:
self.gitStream.write("tag tag_%s\n" % labelDetails["label"])
self.gitStream.write("from %s\n" % branch)
owner = labelDetails["Owner"]
tagger = ""
if author in self.users:
tagger = "%s %s %s" % (self.users[owner], epoch, self.tz)
else:
tagger = "%s <a@b> %s %s" % (owner, epoch, self.tz)
self.gitStream.write("tagger %s\n" % tagger)
self.gitStream.write("data <<EOT\n")
self.gitStream.write(labelDetails["Description"])
self.gitStream.write("EOT\n\n")
else:
if not self.silent:
print ("Tag %s does not match with change %s: files do not match."
% (labelDetails["label"], change))
else:
if not self.silent:
print ("Tag %s does not match with change %s: file count is different."
% (labelDetails["label"], change))
def getUserCacheFilename(self):
home = os.environ.get("HOME", os.environ.get("USERPROFILE"))
return home + "/.gitp4-usercache.txt"
def getUserMapFromPerforceServer(self):
if self.userMapFromPerforceServer:
return
self.users = {}
for output in p4CmdList("users"):
if not output.has_key("User"):
continue
self.users[output["User"]] = output["FullName"] + " <" + output["Email"] + ">"
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
try:
cache = open(self.getUserCacheFilename(), "rb")
lines = cache.readlines()
cache.close()
for line in lines:
entry = line.strip().split("\t")
self.users[entry[0]] = entry[1]
except IOError:
self.getUserMapFromPerforceServer()
def getLabels(self):
self.labels = {}
l = p4CmdList("labels %s..." % ' '.join (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 "
+ ' '.join (["%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()
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()
for info in p4CmdList("branches"):
details = p4Cmd("branch -o %s" % 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("/..."):
continue
source = paths[0]
destination = paths[1]
## HACK
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)
continue
self.knownBranches[destination] = source
lostAndFoundBranches.discard(destination)
if source not in self.knownBranches:
lostAndFoundBranches.add(source)
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"
else:
branch = branch[len(self.projectName):]
self.knownBranches[branch] = branch
def listExistingP4GitBranches(self):
# branches holds mapping from name to commit
branches = p4BranchesInGit(self.importIntoRemotes)
self.p4BranchesInGit = branches.keys()
for branch in branches.keys():
self.initialParents[self.refPrefix + branch] = branches[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
else:
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
self.gitStream.write("checkpoint\n\n");
self.gitStream.flush();
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
self.importChanges(changes)
return True
def importChanges(self, changes):
cnt = 1
for change in changes:
description = p4Cmd("describe %s" % change)
self.updateOptionDict(description)
if not self.silent:
sys.stdout.write("\rImporting revision %s (%s%%)" % (change, cnt * 100 / len(changes)))
sys.stdout.flush()
cnt = cnt + 1
try:
if self.detectBranches:
branches = self.splitFilesIntoBranches(description)
for branch in branches.keys():
## HACK --hwn
branchPrefix = self.depotPaths[0] + branch + "/"
parent = ""
filesForCommit = branches[branch]
if self.verbose:
print "branch is %s" % branch
self.updatedBranches.add(branch)
if branch not in self.createdBranches:
self.createdBranches.add(branch)
parent = self.knownBranches[branch]
if parent == branch:
parent = ""
else:
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 = ""
self.p4BranchesInGit.append(fullBranch)
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]
self.commit(description, filesForCommit, branch, [branchPrefix], parent)
else:
files = self.extractFilesFromCommit(description)
self.commit(description, files, self.branch, self.depotPaths,
self.initialParent)
self.initialParent = ""
except IOError:
print self.gitError.read()
sys.exit(1)
def importHeadRevision(self, revision):
print "Doing initial import of %s from revision %s into %s" % (' '.join(self.depotPaths), revision, self.branch)
details = { "user" : "git perforce import user", "time" : int(time.time()) }
details["desc"] = ("Initial import of %s from the state at revision %s\n"
% (' '.join(self.depotPaths), revision))
details["change"] = revision
newestRevision = 0
fileCnt = 0
for info in p4CmdList("files "
+ ' '.join(["%s...%s"
% (p, revision)
for p in self.depotPaths])):
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))
sys.exit(1)
if 'p4ExitCode' in info:
sys.stderr.write("p4 exitcode: %s\n" % info['p4ExitCode'])
sys.exit(1)
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
continue
for prop in ["depotFile", "rev", "action", "type" ]:
details["%s%s" % (prop, fileCnt)] = info[prop]
fileCnt = fileCnt + 1
details["change"] = newestRevision
self.updateOptionDict(details)
try:
self.commit(details, self.extractFilesFromCommit(details), self.branch, self.depotPaths)
except IOError:
print "IO error with git fast-import. Is your git version recent enough?"
print self.gitError.read()
def getClientSpec(self):
specList = p4CmdList( "client -o" )
temp = {}
for entry in specList:
for k,v in entry.iteritems():
if k.startswith("View"):
# p4 has these %%1 to %%9 arguments in specs to
# reorder paths; which we can't handle (yet :)
if re.match('%%\d', v) != None:
print "Sorry, can't handle %%n arguments in client specs"
sys.exit(1)
if v.startswith('"'):
start = 1
else:
start = 0
index = v.find("...")
# save the "client view"; i.e the RHS of the view
# line that tells the client where to put the
# files for this view.
cv = v[index+3:].strip() # +3 to remove previous '...'
# if the client view doesn't end with a
# ... wildcard, then we're going to mess up the
# output directory, so fail gracefully.
if not cv.endswith('...'):
print 'Sorry, client view in "%s" needs to end with wildcard' % (k)
sys.exit(1)
cv=cv[:-3]
# now save the view; +index means included, -index
# means it should be filtered out.
v = v[start:index]
if v.startswith("-"):
v = v[1:]
include = -len(v)
else:
include = len(v)
temp[v] = (include, cv)
self.clientSpecDirs = temp.items()
self.clientSpecDirs.sort( lambda x, y: abs( y[1][0] ) - abs( x[1][0] ) )
def run(self, args):
self.depotPaths = []
self.changeRange = ""
self.initialParent = ""
self.previousDepotPaths = []
# map from branch depot path to parent branch
self.knownBranches = {}
self.initialParents = {}
self.hasOrigin = originP4BranchesExist()
if not self.syncWithOrigin:
self.hasOrigin = False
if self.importIntoRemotes:
self.refPrefix = "refs/remotes/p4/"
else:
self.refPrefix = "refs/heads/p4/"
if self.syncWithOrigin and self.hasOrigin:
if not self.silent:
print "Syncing with origin first by calling git fetch origin"
system("git fetch origin")
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");
# create it /after/ importing, when master exists
if not gitBranchExists(self.refPrefix + "HEAD") and self.importIntoRemotes and gitBranchExists(self.branch):
system("git symbolic-ref %sHEAD %s" % (self.refPrefix, self.branch))
if self.useClientSpec or gitConfig("git-p4.useclientspec") == "true":
self.getClientSpec()
# TODO: should always look at previous commits,
# merge with previous imports, if possible.
if args == []:
if self.hasOrigin:
createOrUpdateBranchesFromOrigin(self.refPrefix, self.silent)
self.listExistingP4GitBranches()
if len(self.p4BranchesInGit) > 1:
if not self.silent:
print "Importing from/into multiple branches"
self.detectBranches = True
if self.verbose:
print "branches: %s" % self.p4BranchesInGit
p4Change = 0
for branch in self.p4BranchesInGit:
logMsg = extractLogMessageFromGitCommit(self.refPrefix + branch)
settings = extractSettingsGitLog(logMsg)
self.readOptions(settings)
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
else:
paths = []
for (prev, cur) in zip(self.previousDepotPaths, depotPaths):
for i in range(0, min(len(cur), len(prev))):
if cur[i] <> prev[i]:
i = i - 1
break
paths.append (cur[:i + 1])
self.previousDepotPaths = paths
if p4Change > 0:
self.depotPaths = sorted(self.previousDepotPaths)
self.changeRange = "@%s,#head" % p4Change
if not self.detectBranches:
self.initialParent = parseRevision(self.branch)
if not self.silent and not self.detectBranches:
print "Performing incremental import into %s git branch" % self.branch
if not self.branch.startswith("refs/"):
self.branch = "refs/heads/" + self.branch
if len(args) == 0 and self.depotPaths:
if not self.silent:
print "Depot paths: %s" % ' '.join(self.depotPaths)
else:
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)))
sys.exit(1)
self.depotPaths = sorted(args)
revision = ""
self.users = {}
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 == []:
revision = "#head"
p = re.sub ("\.\.\.$", "", p)
if not p.endswith("/"):
p += "/"
newPaths.append(p)
self.depotPaths = newPaths
self.loadUserMapFromCache()
self.labels = {}
if self.detectLabels:
self.getLabels();
if self.detectBranches:
## FIXME - what's a P4 projectName ?
self.projectName = self.guessProjectName()
if self.hasOrigin:
self.getBranchMappingFromGitBranches()
else:
self.getBranchMapping()
if self.verbose:
print "p4-git branches: %s" % self.p4BranchesInGit
print "initial parents: %s" % self.initialParents
for b in self.p4BranchesInGit:
if b != "master":
## FIXME
b = b[len(self.projectName):]
self.createdBranches.add(b)
self.tz = "%+03d%02d" % (- time.timezone / 3600, ((- time.timezone % 3600) / 60))
importProcess = subprocess.Popen(["git", "fast-import"],
stdin=subprocess.PIPE, stdout=subprocess.PIPE,
stderr=subprocess.PIPE);
self.gitOutput = importProcess.stdout
self.gitStream = importProcess.stdin
self.gitError = importProcess.stderr
if revision:
self.importHeadRevision(revision)
else:
changes = []
if len(self.changesFile) > 0:
output = open(self.changesFile).readlines()
changeSet = set()
for line in output:
changeSet.add(int(line))
for change in changeSet:
changes.append(change)
changes.sort()
else:
# catch "git-p4 sync" with no new branches, in a repo that
# does not have any existing git-p4 branches
if len(args) == 0 and not self.p4BranchesInGit:
die("No remote p4 branches. Perhaps you never did \"git p4 clone\" in here.");
if self.verbose:
print "Getting p4 changes for %s...%s" % (', '.join(self.depotPaths),
self.changeRange)
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!"
return True
if not self.silent and not self.detectBranches:
print "Import destination: %s" % self.branch
self.updatedBranches = set()
self.importChanges(changes)
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)
sys.stdout.write("\n")
self.gitStream.close()
if importProcess.wait() != 0:
die("fast-import failed: %s" % self.gitError.read())
self.gitOutput.close()
self.gitError.close()
return True
class P4Rebase(Command):
def __init__(self):
Command.__init__(self)
self.options = [ ]
self.description = ("Fetches the latest revision from perforce and "
+ "rebases the current work (branch) against it")
self.verbose = False
def run(self, args):
sync = P4Sync()
sync.run([])
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):
P4Sync.__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")
sys.exit(1)
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):
os.makedirs(self.cloneDestination)
chdir(self.cloneDestination)
init_cmd = [ "git", "init" ]
if self.cloneBare:
init_cmd.append("--bare")
subprocess.check_call(init_cmd)
if not P4Sync.run(self, depotPaths):
return False
if self.branch != "master":
if self.importIntoRemotes:
masterbranch = "refs/remotes/p4/master"
else:
masterbranch = "refs/heads/p4/master"
if gitBranchExists(masterbranch):
system("git branch master %s" % masterbranch)
if not self.cloneBare:
system("git checkout -f")
else:
print "Could not detect main branch. No checkout/master branch created."
return True
class P4Branches(Command):
def __init__(self):
Command.__init__(self)
self.options = [ ]
self.description = ("Shows the git branches that hold imports and their "
+ "corresponding perforce depot paths")
self.verbose = False
def run(self, args):
if originP4BranchesExist():
createOrUpdateBranchesFromOrigin()
cmdline = "git rev-parse --symbolic "
cmdline += " --remotes"
for line in read_pipe_lines(cmdline):
line = line.strip()
if not line.startswith('p4/') or line == "p4/HEAD":
continue
branch = line
log = extractLogMessageFromGitCommit("refs/remotes/%s" % branch)
settings = extractSettingsGitLog(log)
print "%s <= %s (%s)" % (branch, ",".join(settings["depot-paths"]), settings["change"])
return True
class HelpFormatter(optparse.IndentedHelpFormatter):
def __init__(self):
optparse.IndentedHelpFormatter.__init__(self)
def format_description(self, description):
if description:
return description + "\n"
else:
return ""
def printUsage(commands):
print "usage: %s <command> [options]" % sys.argv[0]
print ""
print "valid commands: %s" % ", ".join(commands)
print ""
print "Try %s <command> --help for command specific help." % sys.argv[0]
print ""
commands = {
"debug" : P4Debug,
"submit" : P4Submit,
"commit" : P4Submit,
"sync" : P4Sync,
"rebase" : P4Rebase,
"clone" : P4Clone,
"rollback" : P4RollBack,
"branches" : P4Branches
}
def main():
if len(sys.argv[1:]) == 0:
printUsage(commands.keys())
sys.exit(2)
cmd = ""
cmdName = sys.argv[1]
try:
klass = commands[cmdName]
cmd = klass()
except KeyError:
print "unknown command %s" % cmdName
print ""
printUsage(commands.keys())
sys.exit(2)
options = cmd.options
cmd.gitdir = os.environ.get("GIT_DIR", None)
args = sys.argv[2:]
if len(options) > 0:
options.append(optparse.make_option("--git-dir", dest="gitdir"))
parser = optparse.OptionParser(cmd.usage.replace("%prog", "%prog " + cmdName),
options,
description = cmd.description,
formatter = HelpFormatter())
(cmd, args) = parser.parse_args(sys.argv[2:], cmd);
global verbose
verbose = cmd.verbose
if cmd.needsGit:
if cmd.gitdir == None:
cmd.gitdir = os.path.abspath(".git")
if not isValidGitDir(cmd.gitdir):
cmd.gitdir = read_pipe("git rev-parse --git-dir").strip()
if os.path.exists(cmd.gitdir):
cdup = read_pipe("git rev-parse --show-cdup").strip()
if len(cdup) > 0:
chdir(cdup);
if not isValidGitDir(cmd.gitdir):
if isValidGitDir(cmd.gitdir + "/.git"):
cmd.gitdir += "/.git"
else:
die("fatal: cannot locate git repository at %s" % cmd.gitdir)
os.environ["GIT_DIR"] = cmd.gitdir
if not cmd.run(args):
parser.print_help()
if __name__ == '__main__':
main()