if os.system(cmd) != 0:
die("command failed: %s" % cmd)
-def p4CmdList(cmd):
+def p4CmdList(cmd, stdin=None, stdin_mode='w+b'):
cmd = "p4 -G %s" % cmd
if verbose:
sys.stderr.write("Opening pipe: %s\n" % cmd)
- pipe = os.popen(cmd, "rb")
+
+ # 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(pipe)
+ entry = marshal.load(p4.stdout)
result.append(entry)
except EOFError:
pass
- exitCode = pipe.close()
- if exitCode != None:
+ exitCode = p4.wait()
+ if exitCode != 0:
entry = {}
entry["p4ExitCode"] = exitCode
result.append(entry)
def gitConfig(key):
return read_pipe("git config %s" % key, ignore_error=True).strip()
-def findUpstreamBranchPoint():
+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
- branchPoint = ""
parent = 0
while parent < 65535:
- commit = "HEAD~%s" % parent
+ commit = head + "~%s" % parent
log = extractLogMessageFromGitCommit(commit)
settings = extractSettingsGitLog(log)
- if not settings.has_key("depot-paths"):
- parent = parent + 1
- continue
-
- names = read_pipe_lines("git name-rev \"--refs=refs/remotes/p4/*\" \"%s\"" % commit)
- if len(names) <= 0:
- continue
+ if settings.has_key("depot-paths"):
+ paths = ",".join(settings["depot-paths"])
+ if branchByDepotPath.has_key(paths):
+ return [branchByDepotPath[paths], settings]
- # strip away the beginning of 'HEAD~42 refs/remotes/p4/foo'
- branchPoint = names[0].strip()[len(commit) + 1:]
- break
+ parent = parent + 1
- return [branchPoint, settings]
+ return ["", settings]
class Command:
def __init__(self):
self.isWindows = (platform.system() == "Windows")
self.keepRepoPath = False
self.depotPaths = None
+ self.p4BranchesInGit = []
if gitConfig("git-p4.syncFromOrigin") == "false":
self.syncWithOrigin = False
if branch not in branches:
branches[branch] = []
branches[branch].append(file)
+ break
return branches
if not files:
return
- filedata = p4CmdList('print %s' % ' '.join(['"%s#%s"' % (f['path'],
- f['rev'])
- for f in files]))
+ 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 = {}
% (labelDetails["label"], change))
def getUserCacheFilename(self):
- return os.environ["HOME"] + "/.gitp4-usercache.txt"
+ home = os.environ.get("HOME", os.environ.get("USERPROFILE"))
+ return home + "/.gitp4-usercache.txt"
def getUserMapFromPerforceServer(self):
if self.userMapFromPerforceServer:
return p
def getBranchMapping(self):
+ lostAndFoundBranches = set()
+
for info in p4CmdList("branches"):
details = p4Cmd("branch -o %s" % info["branch"])
viewIdx = 0
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 not in self.knownBranches:
- self.knownBranches[destination] = source
- if source not in self.knownBranches:
- self.knownBranches[source] = source
- def listExistingP4GitBranches(self):
- self.p4BranchesInGit = []
+ 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
- cmdline = "git rev-parse --symbolic "
- if self.importIntoRemotes:
- cmdline += " --remotes"
- else:
- cmdline += " --branches"
+ self.knownBranches[destination] = source
- for line in read_pipe_lines(cmdline):
- line = line.strip()
+ lostAndFoundBranches.discard(destination)
- ## only import to p4/
- if not line.startswith('p4/') or line == "p4/HEAD":
- continue
- branch = line
+ if source not in self.knownBranches:
+ lostAndFoundBranches.add(source)
- # strip off p4
- branch = re.sub ("^p4/", "", line)
- self.p4BranchesInGit.append(branch)
- self.initialParents[self.refPrefix + branch] = parseRevision(line)
+ 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 createOrUpdateBranchesFromOrigin(self):
if not self.silent:
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):
+ 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)
"sync" : P4Sync,
"rebase" : P4Rebase,
"clone" : P4Clone,
- "rollback" : P4RollBack
+ "rollback" : P4RollBack,
+ "branches" : P4Branches
}