git-commit-vandalism/contrib/fast-import/git-p4

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#!/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, popen2, subprocess, shelve
import tempfile, getopt, sha, os.path, time, platform
import re
from sets import Set;
verbose = False
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 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 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 system(cmd):
if verbose:
sys.stderr.write("executing %s\n" % cmd)
if os.system(cmd) != 0:
die("command failed: %s" % 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 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 p4CmdList(cmd, stdin=None, stdin_mode='w+b'):
cmd = "p4 -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)
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 += "/"
output = p4Cmd("where %s..." % depotPath)
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;
def gitConfig(key):
return read_pipe("git config %s" % key, ignore_error=True).strip()
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 = read_pipe_lines("p4 changes " + ' '.join (["%s...%s" % (p, changeRange)
for p in depotPaths]))
changes = []
for line in output:
changeNum = line.split(" ")[1]
changes.append(int(changeNum))
changes.sort()
return changes
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("--continue", action="store_false", dest="firstTime"),
optparse.make_option("--verbose", dest="verbose", action="store_true"),
optparse.make_option("--origin", dest="origin"),
optparse.make_option("--reset", action="store_true", dest="reset"),
optparse.make_option("--log-substitutions", dest="substFile"),
optparse.make_option("--dry-run", action="store_true"),
optparse.make_option("--direct", dest="directSubmit", action="store_true"),
optparse.make_option("--trust-me-like-a-fool", dest="trustMeLikeAFool", action="store_true"),
optparse.make_option("-M", dest="detectRename", 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.firstTime = True
self.reset = False
self.interactive = True
self.dryRun = False
self.substFile = ""
self.firstTime = True
self.origin = ""
self.directSubmit = False
self.trustMeLikeAFool = False
self.detectRename = False
self.verbose = False
self.isWindows = (platform.system() == "Windows")
self.logSubstitutions = {}
self.logSubstitutions["<enter description here>"] = "%log%"
self.logSubstitutions["\tDetails:"] = "\tDetails: %log%"
def check(self):
if len(p4CmdList("opened ...")) > 0:
die("You have files opened with perforce! Close them before starting the sync.")
def start(self):
if len(self.config) > 0 and not self.reset:
die("Cannot start sync. Previous sync config found at %s\n"
"If you want to start submitting again from scratch "
"maybe you want to call git-p4 submit --reset" % self.configFile)
commits = []
if self.directSubmit:
commits.append("0")
else:
for line in read_pipe_lines("git rev-list --no-merges %s..%s" % (self.origin, self.master)):
commits.append(line.strip())
commits.reverse()
self.config["commits"] = commits
def prepareLogMessage(self, template, message):
result = ""
for line in template.split("\n"):
if line.startswith("#"):
result += line + "\n"
continue
substituted = False
for key in self.logSubstitutions.keys():
if line.find(key) != -1:
value = self.logSubstitutions[key]
value = value.replace("%log%", message)
if value != "@remove@":
result += line.replace(key, value) + "\n"
substituted = True
break
if not substituted:
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 read_pipe_lines("p4 change -o"):
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 path.startswith(self.depotPath):
continue
else:
inFilesSection = False
else:
if line.startswith("Files:"):
inFilesSection = True
template += line
return template
def applyCommit(self, id):
if self.directSubmit:
print "Applying local change in working directory/index"
diff = self.diffStatus
else:
print "Applying %s" % (read_pipe("git log --max-count=1 --pretty=oneline %s" % id))
diffOpts = ("", "-M")[self.detectRename]
diff = read_pipe_lines("git diff-tree -r %s \"%s^\" \"%s\"" % (diffOpts, id, id))
filesToAdd = set()
filesToDelete = set()
editedFiles = set()
for line in diff:
diff = parseDiffTreeEntry(line)
modifier = diff['status']
path = diff['src']
if modifier == "M":
system("p4 edit \"%s\"" % path)
editedFiles.add(path)
elif modifier == "A":
filesToAdd.add(path)
if path in filesToDelete:
filesToDelete.remove(path)
elif modifier == "D":
filesToDelete.add(path)
if path in filesToAdd:
filesToAdd.remove(path)
elif modifier == "R":
src, dest = diff['src'], diff['dst']
system("p4 integrate -Dt \"%s\" \"%s\"" % (src, dest))
system("p4 edit \"%s\"" % (dest))
os.unlink(dest)
editedFiles.add(dest)
filesToDelete.add(src)
else:
die("unknown modifier %s for %s" % (modifier, path))
if self.directSubmit:
diffcmd = "cat \"%s\"" % self.diffFile
else:
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:
system("p4 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:
system("p4 add \"%s\"" % f)
for f in filesToDelete:
system("p4 revert \"%s\"" % f)
system("p4 delete \"%s\"" % f)
logMessage = ""
if not self.directSubmit:
logMessage = extractLogMessageFromGitCommit(id)
logMessage = logMessage.replace("\n", "\n\t")
if self.isWindows:
logMessage = logMessage.replace("\n", "\r\n")
logMessage = logMessage.strip()
template = self.prepareSubmitTemplate()
if self.interactive:
submitTemplate = self.prepareLogMessage(template, logMessage)
diff = read_pipe("p4 diff -du ...")
for newFile in filesToAdd:
diff += "==== new file ====\n"
diff += "--- /dev/null\n"
diff += "+++ %s\n" % newFile
f = open(newFile, "r")
for line in f.readlines():
diff += "+" + line
f.close()
separatorLine = "######## everything below this line is just the diff #######"
if platform.system() == "Windows":
separatorLine += "\r"
separatorLine += "\n"
response = "e"
if self.trustMeLikeAFool:
response = "y"
firstIteration = True
while response == "e":
if not firstIteration:
response = raw_input("Do you want to submit this change? [y]es/[e]dit/[n]o/[s]kip ")
firstIteration = False
if response == "e":
[handle, fileName] = tempfile.mkstemp()
tmpFile = os.fdopen(handle, "w+")
tmpFile.write(submitTemplate + separatorLine + diff)
tmpFile.close()
defaultEditor = "vi"
if platform.system() == "Windows":
defaultEditor = "notepad"
editor = os.environ.get("EDITOR", defaultEditor);
system(editor + " " + fileName)
tmpFile = open(fileName, "rb")
message = tmpFile.read()
tmpFile.close()
os.remove(fileName)
submitTemplate = message[:message.index(separatorLine)]
if self.isWindows:
submitTemplate = submitTemplate.replace("\r\n", "\n")
if response == "y" or response == "yes":
if self.dryRun:
print submitTemplate
raw_input("Press return to continue...")
else:
if self.directSubmit:
print "Submitting to git first"
os.chdir(self.oldWorkingDirectory)
write_pipe("git commit -a -F -", submitTemplate)
os.chdir(self.clientPath)
write_pipe("p4 submit -i", submitTemplate)
elif response == "s":
for f in editedFiles:
system("p4 revert \"%s\"" % f);
for f in filesToAdd:
system("p4 revert \"%s\"" % f);
system("rm %s" %f)
for f in filesToDelete:
system("p4 delete \"%s\"" % f);
return
else:
print "Not submitting!"
self.interactive = False
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
[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()
if self.directSubmit:
self.diffStatus = read_pipe_lines("git diff -r --name-status HEAD")
if len(self.diffStatus) == 0:
print "No changes in working directory to submit."
return True
patch = read_pipe("git diff -p --binary --diff-filter=ACMRTUXB HEAD")
self.diffFile = self.gitdir + "/p4-git-diff"
f = open(self.diffFile, "wb")
f.write(patch)
f.close();
os.chdir(self.clientPath)
print "Syncronizing p4 checkout..."
system("p4 sync ...")
if self.reset:
self.firstTime = True
if len(self.substFile) > 0:
for line in open(self.substFile, "r").readlines():
tokens = line.strip().split("=")
self.logSubstitutions[tokens[0]] = tokens[1]
self.check()
self.configFile = self.gitdir + "/p4-git-sync.cfg"
self.config = shelve.open(self.configFile, writeback=True)
if self.firstTime:
self.start()
commits = self.config.get("commits", [])
while len(commits) > 0:
self.firstTime = False
commit = commits[0]
commits = commits[1:]
self.config["commits"] = commits
self.applyCommit(commit)
if not self.interactive:
break
self.config.close()
if self.directSubmit:
os.remove(self.diffFile)
if len(commits) == 0:
if self.firstTime:
print "No changes found to apply between %s and current HEAD" % self.origin
else:
print "All changes applied!"
os.chdir(self.oldWorkingDirectory)
sync = P4Sync()
sync.run([])
response = raw_input("Do you want to rebase current HEAD from Perforce now using git-p4 rebase? [y]es/[n]o ")
if response == "y" or response == "yes":
rebase = P4Rebase()
rebase.rebase()
os.remove(self.configFile)
return True
class P4Sync(Command):
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")
]
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 = []
if gitConfig("git-p4.syncFromOrigin") == "false":
self.syncWithOrigin = False
def extractFilesFromCommit(self, commit):
files = []
fnum = 0
while commit.has_key("depotFile%s" % fnum):
path = commit["depotFile%s" % fnum]
found = [p for p in self.depotPaths
if path.startswith (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.keepRepoPath:
prefixes = [re.sub("^(//[^/]+/).*", r'\1', prefixes[0])]
for p in prefixes:
if path.startswith(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 path.startswith (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
## Should move this out, doesn't use SELF.
def readP4Files(self, files):
files = [f for f in files
if f['action'] != 'delete']
if not files:
return
filedata = p4CmdList('-x - print',
stdin='\n'.join(['%s#%s' % (f['path'], f['rev'])
for f in files]),
stdin_mode='w+')
if "p4ExitCode" in filedata[0]:
die("Problems executing p4. Error: [%d]."
% (filedata[0]['p4ExitCode']));
j = 0;
contents = {}
while j < len(filedata):
stat = filedata[j]
j += 1
text = ''
while j < len(filedata) and filedata[j]['code'] in ('text',
'binary'):
text += filedata[j]['data']
j += 1
if not stat.has_key('depotFile'):
sys.stderr.write("p4 print fails with: %s\n" % repr(stat))
continue
contents[stat['depotFile']] = text
for f in files:
assert not f.has_key('data')
f['data'] = contents[f['path']]
def commit(self, details, files, branch, branchPrefixes, 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 branchPrefixes if f['path'].startswith(p)]:
new_files.append (f)
else:
sys.stderr.write("Ignoring file outside of prefix: %s\n" % path)
files = new_files
self.readP4Files(files)
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)
for file in files:
if file["type"] == "apple":
print "\nfile %s is a strange apple file that forks. Ignoring!" % file['path']
continue
relPath = self.stripRepoPath(file['path'], branchPrefixes)
if file["action"] == "delete":
self.gitStream.write("D %s\n" % relPath)
else:
data = file['data']
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 = data[:-1]
if self.isWindows and file["type"].endswith("text"):
data = data.replace("\r\n", "\n")
self.gitStream.write("M %s inline %s\n" % (mode, relPath))
self.gitStream.write("data %s\n" % len(data))
self.gitStream.write(data)
self.gitStream.write("\n")
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"] == "delete":
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, val)
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.depotPath`
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 source.startswith(self.depotPaths[0]) and destination.startswith(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 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"
% (' '.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 info['code'] == 'error':
sys.stderr.write("p4 returned an error: %s\n"
% info['data'])
sys.exit(1)
change = int(info["change"])
if change > newestRevision:
newestRevision = change
if info["action"] == "delete":
# 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 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))
# 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 not self.hasOrigin:
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:
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):
[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]+$", "", upstream)
print "Rebasing the current branch onto %s" % upstream
oldHead = read_pipe("git rev-parse HEAD").strip()
system("git rebase %s" % upstream)
system("git diff-tree --stat --summary -M %s HEAD" % oldHead)
return True
class P4Clone(P4Sync):
def __init__(self):
P4Sync.__init__(self)
self.description = "Creates a new git repository and imports from Perforce into it"
self.usage = "usage: %prog [options] //depot/path[@revRange]"
self.options.append(
optparse.make_option("--destination", dest="cloneDestination",
action='store', default=None,
help="where to leave result of the clone"))
self.cloneDestination = None
self.needsGit = False
def defaultDestination(self, args):
## TODO: use common prefix of args?
depotPath = args[0]
depotDir = re.sub("(@[^@]*)$", "", 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]
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)
os.chdir(self.cloneDestination)
system("git init")
self.gitdir = os.getcwd() + "/.git"
if not P4Sync.run(self, depotPaths):
return False
if self.branch != "master":
if gitBranchExists("refs/remotes/p4/master"):
system("git branch master refs/remotes/p4/master")
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:
os.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()