git-commit-vandalism/contrib/fast-import/git-p4
David Brown b9fc6ea9ef Detect exec bit in more cases.
git-p4 was missing the execute bit setting if the file had other attribute
bits set.

Acked-By: Simon Hausmann <simon@lst.de>
2007-09-22 15:41:50 -07:00

1636 lines
58 KiB
Python
Executable File

#!/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 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")
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"),
]
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.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))
diff = read_pipe_lines("git diff-tree -r --name-status \"%s^\" \"%s\"" % (id, id))
filesToAdd = set()
filesToDelete = set()
editedFiles = set()
for line in diff:
modifier = line[0]
path = line[1:].strip()
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)
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..."
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)
response = raw_input("Do you want to sync %s with p4 sync? [y]es/[n]o " % self.clientPath)
if response == "y" or response == "yes":
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)
response = raw_input("Do you want to sync from Perforce now using git-p4 rebase? [y]es/[n]o ")
if response == "y" or response == "yes":
rebase = P4Rebase()
rebase.run([])
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 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)
self.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:
self.revision = self.changeRange
self.changeRange = ""
p = p[:atIdx]
elif p.find("#") != -1:
hashIdx = p.index("#")
self.revision = p[hashIdx:]
p = p[:hashIdx]
elif self.previousDepotPaths == []:
self.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 self.revision:
print "Doing initial import of %s from revision %s into %s" % (' '.join(self.depotPaths), self.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), self.revision))
details["change"] = self.revision
newestRevision = 0
fileCnt = 0
for info in p4CmdList("files "
+ ' '.join(["%s...%s"
% (p, self.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()
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)
assert self.depotPaths
output = read_pipe_lines("p4 changes " + ' '.join (["%s...%s" % (p, self.changeRange)
for p in self.depotPaths]))
for line in output:
changeNum = line.split(" ")[1]
changes.append(int(changeNum))
changes.sort()
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()
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 = ""
elif self.verbose:
print "parent determined through known branches: %s" % parent
# main branch? use master
if branch == "main":
branch = "master"
else:
## FIXME
branch = self.projectName + branch
if parent == "main":
parent = "master"
elif len(parent) > 0:
## FIXME
parent = self.projectName + parent
branch = self.refPrefix + branch
if len(parent) > 0:
parent = self.refPrefix + 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)
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([])
[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,
"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()