#!/usr/bin/env python # # git-p4.py -- A tool for bidirectional operation between a Perforce depot and git. # # Author: Simon Hausmann # Copyright: 2007 Simon Hausmann # 2007 Trolltech ASA # License: MIT # import sys if sys.hexversion < 0x02040000: # The limiter is the subprocess module sys.stderr.write("git-p4: requires Python 2.4 or later.\n") sys.exit(1) import os import optparse import marshal import subprocess import tempfile import time import platform import re import shutil import stat try: from subprocess import CalledProcessError except ImportError: # from python2.7:subprocess.py # Exception classes used by this module. class CalledProcessError(Exception): """This exception is raised when a process run by check_call() returns a non-zero exit status. The exit status will be stored in the returncode attribute.""" def __init__(self, returncode, cmd): self.returncode = returncode self.cmd = cmd def __str__(self): return "Command '%s' returned non-zero exit status %d" % (self.cmd, self.returncode) verbose = False # Only labels/tags matching this will be imported/exported defaultLabelRegexp = r'[a-zA-Z0-9_\-.]+$' # Grab changes in blocks of this many revisions, unless otherwise requested defaultBlockSize = 512 def p4_build_cmd(cmd): """Build a suitable p4 command line. This consolidates building and returning a p4 command line into one location. It means that hooking into the environment, or other configuration can be done more easily. """ real_cmd = ["p4"] user = gitConfig("git-p4.user") if len(user) > 0: real_cmd += ["-u",user] password = gitConfig("git-p4.password") if len(password) > 0: real_cmd += ["-P", password] port = gitConfig("git-p4.port") if len(port) > 0: real_cmd += ["-p", port] host = gitConfig("git-p4.host") if len(host) > 0: real_cmd += ["-H", host] client = gitConfig("git-p4.client") if len(client) > 0: real_cmd += ["-c", client] if isinstance(cmd,basestring): real_cmd = ' '.join(real_cmd) + ' ' + cmd else: real_cmd += cmd return real_cmd def chdir(path, is_client_path=False): """Do chdir to the given path, and set the PWD environment variable for use by P4. It does not look at getcwd() output. Since we're not using the shell, it is necessary to set the PWD environment variable explicitly. Normally, expand the path to force it to be absolute. This addresses the use of relative path names inside P4 settings, e.g. P4CONFIG=.p4config. P4 does not simply open the filename as given; it looks for .p4config using PWD. If is_client_path, the path was handed to us directly by p4, and may be a symbolic link. Do not call os.getcwd() in this case, because it will cause p4 to think that PWD is not inside the client path. """ os.chdir(path) if not is_client_path: path = os.getcwd() os.environ['PWD'] = path def die(msg): if verbose: raise Exception(msg) else: sys.stderr.write(msg + "\n") sys.exit(1) def write_pipe(c, stdin): if verbose: sys.stderr.write('Writing pipe: %s\n' % str(c)) expand = isinstance(c,basestring) p = subprocess.Popen(c, stdin=subprocess.PIPE, shell=expand) pipe = p.stdin val = pipe.write(stdin) pipe.close() if p.wait(): die('Command failed: %s' % str(c)) return val def p4_write_pipe(c, stdin): real_cmd = p4_build_cmd(c) return write_pipe(real_cmd, stdin) def read_pipe(c, ignore_error=False): if verbose: sys.stderr.write('Reading pipe: %s\n' % str(c)) expand = isinstance(c,basestring) p = subprocess.Popen(c, stdout=subprocess.PIPE, shell=expand) pipe = p.stdout val = pipe.read() if p.wait() and not ignore_error: die('Command failed: %s' % str(c)) return val def p4_read_pipe(c, ignore_error=False): real_cmd = p4_build_cmd(c) return read_pipe(real_cmd, ignore_error) def read_pipe_lines(c): if verbose: sys.stderr.write('Reading pipe: %s\n' % str(c)) expand = isinstance(c, basestring) p = subprocess.Popen(c, stdout=subprocess.PIPE, shell=expand) pipe = p.stdout val = pipe.readlines() if pipe.close() or p.wait(): die('Command failed: %s' % str(c)) return val def p4_read_pipe_lines(c): """Specifically invoke p4 on the command supplied. """ real_cmd = p4_build_cmd(c) return read_pipe_lines(real_cmd) def p4_has_command(cmd): """Ask p4 for help on this command. If it returns an error, the command does not exist in this version of p4.""" real_cmd = p4_build_cmd(["help", cmd]) p = subprocess.Popen(real_cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE) p.communicate() return p.returncode == 0 def p4_has_move_command(): """See if the move command exists, that it supports -k, and that it has not been administratively disabled. The arguments must be correct, but the filenames do not have to exist. Use ones with wildcards so even if they exist, it will fail.""" if not p4_has_command("move"): return False cmd = p4_build_cmd(["move", "-k", "@from", "@to"]) p = subprocess.Popen(cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE) (out, err) = p.communicate() # return code will be 1 in either case if err.find("Invalid option") >= 0: return False if err.find("disabled") >= 0: return False # assume it failed because @... was invalid changelist return True def system(cmd): expand = isinstance(cmd,basestring) if verbose: sys.stderr.write("executing %s\n" % str(cmd)) retcode = subprocess.call(cmd, shell=expand) if retcode: raise CalledProcessError(retcode, cmd) def p4_system(cmd): """Specifically invoke p4 as the system command. """ real_cmd = p4_build_cmd(cmd) expand = isinstance(real_cmd, basestring) retcode = subprocess.call(real_cmd, shell=expand) if retcode: raise CalledProcessError(retcode, real_cmd) _p4_version_string = None def p4_version_string(): """Read the version string, showing just the last line, which hopefully is the interesting version bit. $ p4 -V Perforce - The Fast Software Configuration Management System. Copyright 1995-2011 Perforce Software. All rights reserved. Rev. P4/NTX86/2011.1/393975 (2011/12/16). """ global _p4_version_string if not _p4_version_string: a = p4_read_pipe_lines(["-V"]) _p4_version_string = a[-1].rstrip() return _p4_version_string def p4_integrate(src, dest): p4_system(["integrate", "-Dt", wildcard_encode(src), wildcard_encode(dest)]) def p4_sync(f, *options): p4_system(["sync"] + list(options) + [wildcard_encode(f)]) def p4_add(f): # forcibly add file names with wildcards if wildcard_present(f): p4_system(["add", "-f", f]) else: p4_system(["add", f]) def p4_delete(f): p4_system(["delete", wildcard_encode(f)]) def p4_edit(f): p4_system(["edit", wildcard_encode(f)]) def p4_revert(f): p4_system(["revert", wildcard_encode(f)]) def p4_reopen(type, f): p4_system(["reopen", "-t", type, wildcard_encode(f)]) def p4_move(src, dest): p4_system(["move", "-k", wildcard_encode(src), wildcard_encode(dest)]) def p4_last_change(): results = p4CmdList(["changes", "-m", "1"]) return int(results[0]['change']) def p4_describe(change): """Make sure it returns a valid result by checking for the presence of field "time". Return a dict of the results.""" ds = p4CmdList(["describe", "-s", str(change)]) if len(ds) != 1: die("p4 describe -s %d did not return 1 result: %s" % (change, str(ds))) d = ds[0] if "p4ExitCode" in d: die("p4 describe -s %d exited with %d: %s" % (change, d["p4ExitCode"], str(d))) if "code" in d: if d["code"] == "error": die("p4 describe -s %d returned error code: %s" % (change, str(d))) if "time" not in d: die("p4 describe -s %d returned no \"time\": %s" % (change, str(d))) return d # # Canonicalize the p4 type and return a tuple of the # base type, plus any modifiers. See "p4 help filetypes" # for a list and explanation. # def split_p4_type(p4type): p4_filetypes_historical = { "ctempobj": "binary+Sw", "ctext": "text+C", "cxtext": "text+Cx", "ktext": "text+k", "kxtext": "text+kx", "ltext": "text+F", "tempobj": "binary+FSw", "ubinary": "binary+F", "uresource": "resource+F", "uxbinary": "binary+Fx", "xbinary": "binary+x", "xltext": "text+Fx", "xtempobj": "binary+Swx", "xtext": "text+x", "xunicode": "unicode+x", "xutf16": "utf16+x", } if p4type in p4_filetypes_historical: p4type = p4_filetypes_historical[p4type] mods = "" s = p4type.split("+") base = s[0] mods = "" if len(s) > 1: mods = s[1] return (base, mods) # # return the raw p4 type of a file (text, text+ko, etc) # def p4_type(f): results = p4CmdList(["fstat", "-T", "headType", wildcard_encode(f)]) return results[0]['headType'] # # Given a type base and modifier, return a regexp matching # the keywords that can be expanded in the file # def p4_keywords_regexp_for_type(base, type_mods): if base in ("text", "unicode", "binary"): kwords = None if "ko" in type_mods: kwords = 'Id|Header' elif "k" in type_mods: kwords = 'Id|Header|Author|Date|DateTime|Change|File|Revision' else: return None pattern = r""" \$ # Starts with a dollar, followed by... (%s) # one of the keywords, followed by... (:[^$\n]+)? # possibly an old expansion, followed by... \$ # another dollar """ % kwords return pattern else: return None # # Given a file, return a regexp matching the possible # RCS keywords that will be expanded, or None for files # with kw expansion turned off. # def p4_keywords_regexp_for_file(file): if not os.path.exists(file): return None else: (type_base, type_mods) = split_p4_type(p4_type(file)) return p4_keywords_regexp_for_type(type_base, type_mods) def setP4ExecBit(file, mode): # Reopens an already open file and changes the execute bit to match # the execute bit setting in the passed in mode. p4Type = "+x" if not isModeExec(mode): p4Type = getP4OpenedType(file) p4Type = re.sub('^([cku]?)x(.*)', '\\1\\2', p4Type) p4Type = re.sub('(.*?\+.*?)x(.*?)', '\\1\\2', p4Type) if p4Type[-1] == "+": p4Type = p4Type[0:-1] p4_reopen(p4Type, file) def getP4OpenedType(file): # Returns the perforce file type for the given file. result = p4_read_pipe(["opened", wildcard_encode(file)]) match = re.match(".*\((.+)\)( \*exclusive\*)?\r?$", result) if match: return match.group(1) else: die("Could not determine file type for %s (result: '%s')" % (file, result)) # Return the set of all p4 labels def getP4Labels(depotPaths): labels = set() if isinstance(depotPaths,basestring): depotPaths = [depotPaths] for l in p4CmdList(["labels"] + ["%s..." % p for p in depotPaths]): label = l['label'] labels.add(label) return labels # Return the set of all git tags def getGitTags(): gitTags = set() for line in read_pipe_lines(["git", "tag"]): tag = line.strip() gitTags.add(tag) return gitTags def diffTreePattern(): # This is a simple generator for the diff tree regex pattern. This could be # a class variable if this and parseDiffTreeEntry were a part of a class. pattern = re.compile(':(\d+) (\d+) (\w+) (\w+) ([A-Z])(\d+)?\t(.*?)((\t(.*))|$)') while True: yield pattern def parseDiffTreeEntry(entry): """Parses a single diff tree entry into its component elements. See git-diff-tree(1) manpage for details about the format of the diff output. This method returns a dictionary with the following elements: src_mode - The mode of the source file dst_mode - The mode of the destination file src_sha1 - The sha1 for the source file dst_sha1 - The sha1 fr the destination file status - The one letter status of the diff (i.e. 'A', 'M', 'D', etc) status_score - The score for the status (applicable for 'C' and 'R' statuses). This is None if there is no score. src - The path for the source file. dst - The path for the destination file. This is only present for copy or renames. If it is not present, this is None. If the pattern is not matched, None is returned.""" match = diffTreePattern().next().match(entry) if match: return { 'src_mode': match.group(1), 'dst_mode': match.group(2), 'src_sha1': match.group(3), 'dst_sha1': match.group(4), 'status': match.group(5), 'status_score': match.group(6), 'src': match.group(7), 'dst': match.group(10) } return None def isModeExec(mode): # Returns True if the given git mode represents an executable file, # otherwise False. return mode[-3:] == "755" def isModeExecChanged(src_mode, dst_mode): return isModeExec(src_mode) != isModeExec(dst_mode) def p4CmdList(cmd, stdin=None, stdin_mode='w+b', cb=None): if isinstance(cmd,basestring): cmd = "-G " + cmd expand = True else: cmd = ["-G"] + cmd expand = False cmd = p4_build_cmd(cmd) if verbose: sys.stderr.write("Opening pipe: %s\n" % str(cmd)) # Use a temporary file to avoid deadlocks without # subprocess.communicate(), which would put another copy # of stdout into memory. stdin_file = None if stdin is not None: stdin_file = tempfile.TemporaryFile(prefix='p4-stdin', mode=stdin_mode) if isinstance(stdin,basestring): stdin_file.write(stdin) else: for i in stdin: stdin_file.write(i + '\n') stdin_file.flush() stdin_file.seek(0) p4 = subprocess.Popen(cmd, shell=expand, stdin=stdin_file, stdout=subprocess.PIPE) result = [] try: while True: entry = marshal.load(p4.stdout) if cb is not None: cb(entry) else: result.append(entry) except EOFError: pass exitCode = p4.wait() if exitCode != 0: entry = {} entry["p4ExitCode"] = exitCode result.append(entry) return result def p4Cmd(cmd): list = p4CmdList(cmd) result = {} for entry in list: result.update(entry) return result; def p4Where(depotPath): if not depotPath.endswith("/"): depotPath += "/" depotPathLong = depotPath + "..." outputList = p4CmdList(["where", depotPathLong]) output = None for entry in outputList: if "depotFile" in entry: # Search for the base client side depot path, as long as it starts with the branch's P4 path. # The base path always ends with "/...". if entry["depotFile"].find(depotPath) == 0 and entry["depotFile"][-4:] == "/...": output = entry break elif "data" in entry: data = entry.get("data") space = data.find(" ") if data[:space] == depotPath: output = entry break if output == None: return "" if output["code"] == "error": return "" clientPath = "" if "path" in output: clientPath = output.get("path") elif "data" in output: data = output.get("data") lastSpace = data.rfind(" ") clientPath = data[lastSpace + 1:] if clientPath.endswith("..."): clientPath = clientPath[:-3] return clientPath def currentGitBranch(): return read_pipe("git name-rev HEAD").split(" ")[1].strip() def isValidGitDir(path): if (os.path.exists(path + "/HEAD") and os.path.exists(path + "/refs") and os.path.exists(path + "/objects")): return True; return False def parseRevision(ref): return read_pipe("git rev-parse %s" % ref).strip() def branchExists(ref): rev = read_pipe(["git", "rev-parse", "-q", "--verify", ref], ignore_error=True) return len(rev) > 0 def extractLogMessageFromGitCommit(commit): logMessage = "" ## fixme: title is first line of commit, not 1st paragraph. foundTitle = False for log in read_pipe_lines("git cat-file commit %s" % commit): if not foundTitle: if len(log) == 1: foundTitle = True continue logMessage += log return logMessage def extractSettingsGitLog(log): values = {} for line in log.split("\n"): line = line.strip() m = re.search (r"^ *\[git-p4: (.*)\]$", line) if not m: continue assignments = m.group(1).split (':') for a in assignments: vals = a.split ('=') key = vals[0].strip() val = ('='.join (vals[1:])).strip() if val.endswith ('\"') and val.startswith('"'): val = val[1:-1] values[key] = val paths = values.get("depot-paths") if not paths: paths = values.get("depot-path") if paths: values['depot-paths'] = paths.split(',') return values def gitBranchExists(branch): proc = subprocess.Popen(["git", "rev-parse", branch], stderr=subprocess.PIPE, stdout=subprocess.PIPE); return proc.wait() == 0; _gitConfig = {} def gitConfig(key): if not _gitConfig.has_key(key): cmd = [ "git", "config", key ] s = read_pipe(cmd, ignore_error=True) _gitConfig[key] = s.strip() return _gitConfig[key] def gitConfigBool(key): """Return a bool, using git config --bool. It is True only if the variable is set to true, and False if set to false or not present in the config.""" if not _gitConfig.has_key(key): cmd = [ "git", "config", "--bool", key ] s = read_pipe(cmd, ignore_error=True) v = s.strip() _gitConfig[key] = v == "true" return _gitConfig[key] def gitConfigList(key): if not _gitConfig.has_key(key): s = read_pipe(["git", "config", "--get-all", key], ignore_error=True) _gitConfig[key] = s.strip().split(os.linesep) return _gitConfig[key] def p4BranchesInGit(branchesAreInRemotes=True): """Find all the branches whose names start with "p4/", looking in remotes or heads as specified by the argument. Return a dictionary of { branch: revision } for each one found. The branch names are the short names, without any "p4/" prefix.""" branches = {} cmdline = "git rev-parse --symbolic " if branchesAreInRemotes: cmdline += "--remotes" else: cmdline += "--branches" for line in read_pipe_lines(cmdline): line = line.strip() # only import to p4/ if not line.startswith('p4/'): continue # special symbolic ref to p4/master if line == "p4/HEAD": continue # strip off p4/ prefix branch = line[len("p4/"):] branches[branch] = parseRevision(line) return branches def branch_exists(branch): """Make sure that the given ref name really exists.""" cmd = [ "git", "rev-parse", "--symbolic", "--verify", branch ] p = subprocess.Popen(cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE) out, _ = p.communicate() if p.returncode: return False # expect exactly one line of output: the branch name return out.rstrip() == branch def findUpstreamBranchPoint(head = "HEAD"): branches = p4BranchesInGit() # map from depot-path to branch name branchByDepotPath = {} for branch in branches.keys(): tip = branches[branch] log = extractLogMessageFromGitCommit(tip) settings = extractSettingsGitLog(log) if settings.has_key("depot-paths"): paths = ",".join(settings["depot-paths"]) branchByDepotPath[paths] = "remotes/p4/" + branch settings = None parent = 0 while parent < 65535: commit = head + "~%s" % parent log = extractLogMessageFromGitCommit(commit) settings = extractSettingsGitLog(log) if settings.has_key("depot-paths"): paths = ",".join(settings["depot-paths"]) if branchByDepotPath.has_key(paths): return [branchByDepotPath[paths], settings] parent = parent + 1 return ["", settings] def createOrUpdateBranchesFromOrigin(localRefPrefix = "refs/remotes/p4/", silent=True): if not silent: print ("Creating/updating branch(es) in %s based on origin branch(es)" % localRefPrefix) originPrefix = "origin/p4/" for line in read_pipe_lines("git rev-parse --symbolic --remotes"): line = line.strip() if (not line.startswith(originPrefix)) or line.endswith("HEAD"): 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 p4ParseNumericChangeRange(parts): changeStart = int(parts[0][1:]) if parts[1] == '#head': changeEnd = p4_last_change() else: changeEnd = int(parts[1]) return (changeStart, changeEnd) def chooseBlockSize(blockSize): if blockSize: return blockSize else: return defaultBlockSize def p4ChangesForPaths(depotPaths, changeRange, requestedBlockSize): assert depotPaths # Parse the change range into start and end. Try to find integer # revision ranges as these can be broken up into blocks to avoid # hitting server-side limits (maxrows, maxscanresults). But if # that doesn't work, fall back to using the raw revision specifier # strings, without using block mode. if changeRange is None or changeRange == '': changeStart = 1 changeEnd = p4_last_change() block_size = chooseBlockSize(requestedBlockSize) else: parts = changeRange.split(',') assert len(parts) == 2 try: (changeStart, changeEnd) = p4ParseNumericChangeRange(parts) block_size = chooseBlockSize(requestedBlockSize) except: changeStart = parts[0][1:] changeEnd = parts[1] if requestedBlockSize: die("cannot use --changes-block-size with non-numeric revisions") block_size = None # Accumulate change numbers in a dictionary to avoid duplicates changes = {} for p in depotPaths: # Retrieve changes a block at a time, to prevent running # into a MaxResults/MaxScanRows error from the server. while True: cmd = ['changes'] if block_size: end = min(changeEnd, changeStart + block_size) revisionRange = "%d,%d" % (changeStart, end) else: revisionRange = "%s,%s" % (changeStart, changeEnd) cmd += ["%s...@%s" % (p, revisionRange)] for line in p4_read_pipe_lines(cmd): changeNum = int(line.split(" ")[1]) changes[changeNum] = True if not block_size: break if end >= changeEnd: break changeStart = end + 1 changelist = changes.keys() changelist.sort() return changelist def p4PathStartsWith(path, prefix): # This method tries to remedy a potential mixed-case issue: # # If UserA adds //depot/DirA/file1 # and UserB adds //depot/dira/file2 # # we may or may not have a problem. If you have core.ignorecase=true, # we treat DirA and dira as the same directory if gitConfigBool("core.ignorecase"): return path.lower().startswith(prefix.lower()) return path.startswith(prefix) def getClientSpec(): """Look at the p4 client spec, create a View() object that contains all the mappings, and return it.""" specList = p4CmdList("client -o") if len(specList) != 1: die('Output from "client -o" is %d lines, expecting 1' % len(specList)) # dictionary of all client parameters entry = specList[0] # the //client/ name client_name = entry["Client"] # just the keys that start with "View" view_keys = [ k for k in entry.keys() if k.startswith("View") ] # hold this new View view = View(client_name) # append the lines, in order, to the view for view_num in range(len(view_keys)): k = "View%d" % view_num if k not in view_keys: die("Expected view key %s missing" % k) view.append(entry[k]) return view def getClientRoot(): """Grab the client directory.""" output = p4CmdList("client -o") if len(output) != 1: die('Output from "client -o" is %d lines, expecting 1' % len(output)) entry = output[0] if "Root" not in entry: die('Client has no "Root"') return entry["Root"] # # P4 wildcards are not allowed in filenames. P4 complains # if you simply add them, but you can force it with "-f", in # which case it translates them into %xx encoding internally. # def wildcard_decode(path): # Search for and fix just these four characters. Do % last so # that fixing it does not inadvertently create new %-escapes. # Cannot have * in a filename in windows; untested as to # what p4 would do in such a case. if not platform.system() == "Windows": path = path.replace("%2A", "*") path = path.replace("%23", "#") \ .replace("%40", "@") \ .replace("%25", "%") return path def wildcard_encode(path): # do % first to avoid double-encoding the %s introduced here path = path.replace("%", "%25") \ .replace("*", "%2A") \ .replace("#", "%23") \ .replace("@", "%40") return path def wildcard_present(path): m = re.search("[*#@%]", path) return m is not None class Command: def __init__(self): self.usage = "usage: %prog [options]" self.needsGit = True self.verbose = False class P4UserMap: def __init__(self): self.userMapFromPerforceServer = False self.myP4UserId = None def p4UserId(self): if self.myP4UserId: return self.myP4UserId results = p4CmdList("user -o") for r in results: if r.has_key('User'): self.myP4UserId = r['User'] return r['User'] die("Could not find your p4 user id") def p4UserIsMe(self, p4User): # return True if the given p4 user is actually me me = self.p4UserId() if not p4User or p4User != me: return False else: return True def getUserCacheFilename(self): home = os.environ.get("HOME", os.environ.get("USERPROFILE")) return home + "/.gitp4-usercache.txt" def getUserMapFromPerforceServer(self): if self.userMapFromPerforceServer: return self.users = {} self.emails = {} for output in p4CmdList("users"): if not output.has_key("User"): continue self.users[output["User"]] = output["FullName"] + " <" + output["Email"] + ">" self.emails[output["Email"]] = output["User"] s = '' for (key, val) in self.users.items(): s += "%s\t%s\n" % (key.expandtabs(1), val.expandtabs(1)) open(self.getUserCacheFilename(), "wb").write(s) self.userMapFromPerforceServer = True def loadUserMapFromCache(self): self.users = {} self.userMapFromPerforceServer = False 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() class P4Debug(Command): def __init__(self): Command.__init__(self) self.options = [] self.description = "A tool to debug the output of p4 -G." self.needsGit = False def run(self, args): j = 0 for output in p4CmdList(args): print 'Element: %d' % j j += 1 print output return True class P4RollBack(Command): def __init__(self): Command.__init__(self) self.options = [ optparse.make_option("--local", dest="rollbackLocalBranches", action="store_true") ] self.description = "A tool to debug the multi-branch import. Don't use :)" self.rollbackLocalBranches = False def run(self, args): if len(args) != 1: return False maxChange = int(args[0]) if "p4ExitCode" in p4Cmd("changes -m 1"): die("Problems executing p4"); if self.rollbackLocalBranches: refPrefix = "refs/heads/" lines = read_pipe_lines("git rev-parse --symbolic --branches") 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, P4UserMap): conflict_behavior_choices = ("ask", "skip", "quit") def __init__(self): Command.__init__(self) P4UserMap.__init__(self) self.options = [ optparse.make_option("--origin", dest="origin"), optparse.make_option("-M", dest="detectRenames", action="store_true"), # preserve the user, requires relevant p4 permissions optparse.make_option("--preserve-user", dest="preserveUser", action="store_true"), optparse.make_option("--export-labels", dest="exportLabels", action="store_true"), optparse.make_option("--dry-run", "-n", dest="dry_run", action="store_true"), optparse.make_option("--prepare-p4-only", dest="prepare_p4_only", action="store_true"), optparse.make_option("--conflict", dest="conflict_behavior", choices=self.conflict_behavior_choices), optparse.make_option("--branch", dest="branch"), ] self.description = "Submit changes from git to the perforce depot." self.usage += " [name of git branch to submit into perforce depot]" self.origin = "" self.detectRenames = False self.preserveUser = gitConfigBool("git-p4.preserveUser") self.dry_run = False self.prepare_p4_only = False self.conflict_behavior = None self.isWindows = (platform.system() == "Windows") self.exportLabels = False self.p4HasMoveCommand = p4_has_move_command() self.branch = None def check(self): if len(p4CmdList("opened ...")) > 0: die("You have files opened with perforce! Close them before starting the sync.") def separate_jobs_from_description(self, message): """Extract and return a possible Jobs field in the commit message. It goes into a separate section in the p4 change specification. A jobs line starts with "Jobs:" and looks like a new field in a form. Values are white-space separated on the same line or on following lines that start with a tab. This does not parse and extract the full git commit message like a p4 form. It just sees the Jobs: line as a marker to pass everything from then on directly into the p4 form, but outside the description section. Return a tuple (stripped log message, jobs string).""" m = re.search(r'^Jobs:', message, re.MULTILINE) if m is None: return (message, None) jobtext = message[m.start():] stripped_message = message[:m.start()].rstrip() return (stripped_message, jobtext) def prepareLogMessage(self, template, message, jobs): """Edits the template returned from "p4 change -o" to insert the message in the Description field, and the jobs text in the Jobs field.""" result = "" inDescriptionSection = False for line in template.split("\n"): if line.startswith("#"): result += line + "\n" continue if inDescriptionSection: if line.startswith("Files:") or line.startswith("Jobs:"): inDescriptionSection = False # insert Jobs section if jobs: result += jobs + "\n" else: continue else: if line.startswith("Description:"): inDescriptionSection = True line += "\n" for messageLine in message.split("\n"): line += "\t" + messageLine + "\n" result += line + "\n" return result def patchRCSKeywords(self, file, pattern): # Attempt to zap the RCS keywords in a p4 controlled file matching the given pattern (handle, outFileName) = tempfile.mkstemp(dir='.') try: outFile = os.fdopen(handle, "w+") inFile = open(file, "r") regexp = re.compile(pattern, re.VERBOSE) for line in inFile.readlines(): line = regexp.sub(r'$\1$', line) outFile.write(line) inFile.close() outFile.close() # Forcibly overwrite the original file os.unlink(file) shutil.move(outFileName, file) except: # cleanup our temporary file os.unlink(outFileName) print "Failed to strip RCS keywords in %s" % file raise print "Patched up RCS keywords in %s" % file def p4UserForCommit(self,id): # Return the tuple (perforce user,git email) for a given git commit id self.getUserMapFromPerforceServer() gitEmail = read_pipe(["git", "log", "--max-count=1", "--format=%ae", id]) gitEmail = gitEmail.strip() if not self.emails.has_key(gitEmail): return (None,gitEmail) else: return (self.emails[gitEmail],gitEmail) def checkValidP4Users(self,commits): # check if any git authors cannot be mapped to p4 users for id in commits: (user,email) = self.p4UserForCommit(id) if not user: msg = "Cannot find p4 user for email %s in commit %s." % (email, id) if gitConfigBool("git-p4.allowMissingP4Users"): print "%s" % msg else: die("Error: %s\nSet git-p4.allowMissingP4Users to true to allow this." % msg) def lastP4Changelist(self): # Get back the last changelist number submitted in this client spec. This # then gets used to patch up the username in the change. If the same # client spec is being used by multiple processes then this might go # wrong. results = p4CmdList("client -o") # find the current client client = None for r in results: if r.has_key('Client'): client = r['Client'] break if not client: die("could not get client spec") results = p4CmdList(["changes", "-c", client, "-m", "1"]) for r in results: if r.has_key('change'): return r['change'] die("Could not get changelist number for last submit - cannot patch up user details") def modifyChangelistUser(self, changelist, newUser): # fixup the user field of a changelist after it has been submitted. changes = p4CmdList("change -o %s" % changelist) if len(changes) != 1: die("Bad output from p4 change modifying %s to user %s" % (changelist, newUser)) c = changes[0] if c['User'] == newUser: return # nothing to do c['User'] = newUser input = marshal.dumps(c) result = p4CmdList("change -f -i", stdin=input) for r in result: if r.has_key('code'): if r['code'] == 'error': die("Could not modify user field of changelist %s to %s:%s" % (changelist, newUser, r['data'])) if r.has_key('data'): print("Updated user field for changelist %s to %s" % (changelist, newUser)) return die("Could not modify user field of changelist %s to %s" % (changelist, newUser)) def canChangeChangelists(self): # check to see if we have p4 admin or super-user permissions, either of # which are required to modify changelists. results = p4CmdList(["protects", self.depotPath]) for r in results: if r.has_key('perm'): if r['perm'] == 'admin': return 1 if r['perm'] == 'super': return 1 return 0 def prepareSubmitTemplate(self): """Run "p4 change -o" to grab a change specification template. This does not use "p4 -G", as it is nice to keep the submission template in original order, since a human might edit it. Remove lines in the Files section that show changes to files outside the depot path we're committing into.""" template = "" inFilesSection = False for line in p4_read_pipe_lines(['change', '-o']): if line.endswith("\r\n"): line = line[:-2] + "\n" if inFilesSection: if line.startswith("\t"): # path starts and ends with a tab path = line[1:] lastTab = path.rfind("\t") if lastTab != -1: path = path[:lastTab] if not p4PathStartsWith(path, self.depotPath): continue else: inFilesSection = False else: if line.startswith("Files:"): inFilesSection = True template += line return template def edit_template(self, template_file): """Invoke the editor to let the user change the submission message. Return true if okay to continue with the submit.""" # if configured to skip the editing part, just submit if gitConfigBool("git-p4.skipSubmitEdit"): return True # look at the modification time, to check later if the user saved # the file mtime = os.stat(template_file).st_mtime # invoke the editor if os.environ.has_key("P4EDITOR") and (os.environ.get("P4EDITOR") != ""): editor = os.environ.get("P4EDITOR") else: editor = read_pipe("git var GIT_EDITOR").strip() system(["sh", "-c", ('%s "$@"' % editor), editor, template_file]) # If the file was not saved, prompt to see if this patch should # be skipped. But skip this verification step if configured so. if gitConfigBool("git-p4.skipSubmitEditCheck"): return True # modification time updated means user saved the file if os.stat(template_file).st_mtime > mtime: return True while True: response = raw_input("Submit template unchanged. Submit anyway? [y]es, [n]o (skip this patch) ") if response == 'y': return True if response == 'n': return False def get_diff_description(self, editedFiles, filesToAdd): # diff if os.environ.has_key("P4DIFF"): del(os.environ["P4DIFF"]) diff = "" for editedFile in editedFiles: diff += p4_read_pipe(['diff', '-du', wildcard_encode(editedFile)]) # new file diff newdiff = "" for newFile in filesToAdd: newdiff += "==== new file ====\n" newdiff += "--- /dev/null\n" newdiff += "+++ %s\n" % newFile f = open(newFile, "r") for line in f.readlines(): newdiff += "+" + line f.close() return (diff + newdiff).replace('\r\n', '\n') def applyCommit(self, id): """Apply one commit, return True if it succeeded.""" print "Applying", read_pipe(["git", "show", "-s", "--format=format:%h %s", id]) (p4User, gitEmail) = self.p4UserForCommit(id) diff = read_pipe_lines("git diff-tree -r %s \"%s^\" \"%s\"" % (self.diffOpts, id, id)) filesToAdd = set() filesToDelete = set() editedFiles = set() pureRenameCopy = set() filesToChangeExecBit = {} for line in diff: diff = parseDiffTreeEntry(line) modifier = diff['status'] path = diff['src'] if modifier == "M": p4_edit(path) if isModeExecChanged(diff['src_mode'], diff['dst_mode']): filesToChangeExecBit[path] = diff['dst_mode'] editedFiles.add(path) elif modifier == "A": filesToAdd.add(path) filesToChangeExecBit[path] = diff['dst_mode'] if path in filesToDelete: filesToDelete.remove(path) elif modifier == "D": filesToDelete.add(path) if path in filesToAdd: filesToAdd.remove(path) elif modifier == "C": src, dest = diff['src'], diff['dst'] p4_integrate(src, dest) pureRenameCopy.add(dest) if diff['src_sha1'] != diff['dst_sha1']: p4_edit(dest) pureRenameCopy.discard(dest) if isModeExecChanged(diff['src_mode'], diff['dst_mode']): p4_edit(dest) pureRenameCopy.discard(dest) filesToChangeExecBit[dest] = diff['dst_mode'] if self.isWindows: # turn off read-only attribute os.chmod(dest, stat.S_IWRITE) os.unlink(dest) editedFiles.add(dest) elif modifier == "R": src, dest = diff['src'], diff['dst'] if self.p4HasMoveCommand: p4_edit(src) # src must be open before move p4_move(src, dest) # opens for (move/delete, move/add) else: p4_integrate(src, dest) if diff['src_sha1'] != diff['dst_sha1']: p4_edit(dest) else: pureRenameCopy.add(dest) if isModeExecChanged(diff['src_mode'], diff['dst_mode']): if not self.p4HasMoveCommand: p4_edit(dest) # with move: already open, writable filesToChangeExecBit[dest] = diff['dst_mode'] if not self.p4HasMoveCommand: if self.isWindows: os.chmod(dest, stat.S_IWRITE) os.unlink(dest) filesToDelete.add(src) editedFiles.add(dest) else: die("unknown modifier %s for %s" % (modifier, path)) diffcmd = "git diff-tree --full-index -p \"%s\"" % (id) patchcmd = diffcmd + " | git apply " tryPatchCmd = patchcmd + "--check -" applyPatchCmd = patchcmd + "--check --apply -" patch_succeeded = True if os.system(tryPatchCmd) != 0: fixed_rcs_keywords = False patch_succeeded = False print "Unfortunately applying the change failed!" # Patch failed, maybe it's just RCS keyword woes. Look through # the patch to see if that's possible. if gitConfigBool("git-p4.attemptRCSCleanup"): file = None pattern = None kwfiles = {} for file in editedFiles | filesToDelete: # did this file's delta contain RCS keywords? pattern = p4_keywords_regexp_for_file(file) if pattern: # this file is a possibility...look for RCS keywords. regexp = re.compile(pattern, re.VERBOSE) for line in read_pipe_lines(["git", "diff", "%s^..%s" % (id, id), file]): if regexp.search(line): if verbose: print "got keyword match on %s in %s in %s" % (pattern, line, file) kwfiles[file] = pattern break for file in kwfiles: if verbose: print "zapping %s with %s" % (line,pattern) # File is being deleted, so not open in p4. Must # disable the read-only bit on windows. if self.isWindows and file not in editedFiles: os.chmod(file, stat.S_IWRITE) self.patchRCSKeywords(file, kwfiles[file]) fixed_rcs_keywords = True if fixed_rcs_keywords: print "Retrying the patch with RCS keywords cleaned up" if os.system(tryPatchCmd) == 0: patch_succeeded = True if not patch_succeeded: for f in editedFiles: p4_revert(f) return False # # Apply the patch for real, and do add/delete/+x handling. # system(applyPatchCmd) for f in filesToAdd: p4_add(f) for f in filesToDelete: p4_revert(f) p4_delete(f) # Set/clear executable bits for f in filesToChangeExecBit.keys(): mode = filesToChangeExecBit[f] setP4ExecBit(f, mode) # # Build p4 change description, starting with the contents # of the git commit message. # logMessage = extractLogMessageFromGitCommit(id) logMessage = logMessage.strip() (logMessage, jobs) = self.separate_jobs_from_description(logMessage) template = self.prepareSubmitTemplate() submitTemplate = self.prepareLogMessage(template, logMessage, jobs) if self.preserveUser: submitTemplate += "\n######## Actual user %s, modified after commit\n" % p4User if self.checkAuthorship and not self.p4UserIsMe(p4User): submitTemplate += "######## git author %s does not match your p4 account.\n" % gitEmail submitTemplate += "######## Use option --preserve-user to modify authorship.\n" submitTemplate += "######## Variable git-p4.skipUserNameCheck hides this message.\n" separatorLine = "######## everything below this line is just the diff #######\n" if not self.prepare_p4_only: submitTemplate += separatorLine submitTemplate += self.get_diff_description(editedFiles, filesToAdd) (handle, fileName) = tempfile.mkstemp() tmpFile = os.fdopen(handle, "w+b") if self.isWindows: submitTemplate = submitTemplate.replace("\n", "\r\n") tmpFile.write(submitTemplate) tmpFile.close() if self.prepare_p4_only: # # Leave the p4 tree prepared, and the submit template around # and let the user decide what to do next # print print "P4 workspace prepared for submission." print "To submit or revert, go to client workspace" print " " + self.clientPath print print "To submit, use \"p4 submit\" to write a new description," print "or \"p4 submit -i <%s\" to use the one prepared by" \ " \"git p4\"." % fileName print "You can delete the file \"%s\" when finished." % fileName if self.preserveUser and p4User and not self.p4UserIsMe(p4User): print "To preserve change ownership by user %s, you must\n" \ "do \"p4 change -f \" after submitting and\n" \ "edit the User field." if pureRenameCopy: print "After submitting, renamed files must be re-synced." print "Invoke \"p4 sync -f\" on each of these files:" for f in pureRenameCopy: print " " + f print print "To revert the changes, use \"p4 revert ...\", and delete" print "the submit template file \"%s\"" % fileName if filesToAdd: print "Since the commit adds new files, they must be deleted:" for f in filesToAdd: print " " + f print return True # # Let the user edit the change description, then submit it. # submitted = False try: if self.edit_template(fileName): # read the edited message and submit tmpFile = open(fileName, "rb") message = tmpFile.read() tmpFile.close() if self.isWindows: message = message.replace("\r\n", "\n") submitTemplate = message[:message.index(separatorLine)] p4_write_pipe(['submit', '-i'], submitTemplate) if self.preserveUser: if p4User: # Get last changelist number. Cannot easily get it from # the submit command output as the output is # unmarshalled. changelist = self.lastP4Changelist() self.modifyChangelistUser(changelist, p4User) # The rename/copy happened by applying a patch that created a # new file. This leaves it writable, which confuses p4. for f in pureRenameCopy: p4_sync(f, "-f") submitted = True finally: # skip this patch if not submitted: print "Submission cancelled, undoing p4 changes." for f in editedFiles: p4_revert(f) for f in filesToAdd: p4_revert(f) os.remove(f) for f in filesToDelete: p4_revert(f) os.remove(fileName) return submitted # Export git tags as p4 labels. Create a p4 label and then tag # with that. def exportGitTags(self, gitTags): validLabelRegexp = gitConfig("git-p4.labelExportRegexp") if len(validLabelRegexp) == 0: validLabelRegexp = defaultLabelRegexp m = re.compile(validLabelRegexp) for name in gitTags: if not m.match(name): if verbose: print "tag %s does not match regexp %s" % (name, validLabelRegexp) continue # Get the p4 commit this corresponds to logMessage = extractLogMessageFromGitCommit(name) values = extractSettingsGitLog(logMessage) if not values.has_key('change'): # a tag pointing to something not sent to p4; ignore if verbose: print "git tag %s does not give a p4 commit" % name continue else: changelist = values['change'] # Get the tag details. inHeader = True isAnnotated = False body = [] for l in read_pipe_lines(["git", "cat-file", "-p", name]): l = l.strip() if inHeader: if re.match(r'tag\s+', l): isAnnotated = True elif re.match(r'\s*$', l): inHeader = False continue else: body.append(l) if not isAnnotated: body = ["lightweight tag imported by git p4\n"] # Create the label - use the same view as the client spec we are using clientSpec = getClientSpec() labelTemplate = "Label: %s\n" % name labelTemplate += "Description:\n" for b in body: labelTemplate += "\t" + b + "\n" labelTemplate += "View:\n" for depot_side in clientSpec.mappings: labelTemplate += "\t%s\n" % depot_side if self.dry_run: print "Would create p4 label %s for tag" % name elif self.prepare_p4_only: print "Not creating p4 label %s for tag due to option" \ " --prepare-p4-only" % name else: p4_write_pipe(["label", "-i"], labelTemplate) # Use the label p4_system(["tag", "-l", name] + ["%s@%s" % (depot_side, changelist) for depot_side in clientSpec.mappings]) if verbose: print "created p4 label for tag %s" % name def run(self, args): if len(args) == 0: self.master = currentGitBranch() if len(self.master) == 0 or not gitBranchExists("refs/heads/%s" % self.master): die("Detecting current git branch failed!") elif len(args) == 1: self.master = args[0] if not branchExists(self.master): die("Branch %s does not exist" % self.master) else: return False allowSubmit = gitConfig("git-p4.allowSubmit") if len(allowSubmit) > 0 and not self.master in allowSubmit.split(","): die("%s is not in git-p4.allowSubmit" % self.master) [upstream, settings] = findUpstreamBranchPoint() self.depotPath = settings['depot-paths'][0] if len(self.origin) == 0: self.origin = upstream if self.preserveUser: if not self.canChangeChangelists(): die("Cannot preserve user names without p4 super-user or admin permissions") # if not set from the command line, try the config file if self.conflict_behavior is None: val = gitConfig("git-p4.conflict") if val: if val not in self.conflict_behavior_choices: die("Invalid value '%s' for config git-p4.conflict" % val) else: val = "ask" self.conflict_behavior = val if self.verbose: print "Origin branch is " + self.origin if len(self.depotPath) == 0: print "Internal error: cannot locate perforce depot path from existing branches" sys.exit(128) self.useClientSpec = False if gitConfigBool("git-p4.useclientspec"): self.useClientSpec = True if self.useClientSpec: self.clientSpecDirs = getClientSpec() # Check for the existance of P4 branches branchesDetected = (len(p4BranchesInGit().keys()) > 1) if self.useClientSpec and not branchesDetected: # all files are relative to the client spec self.clientPath = getClientRoot() else: self.clientPath = p4Where(self.depotPath) if self.clientPath == "": die("Error: Cannot locate perforce checkout of %s in client view" % self.depotPath) print "Perforce checkout for depot path %s located at %s" % (self.depotPath, self.clientPath) self.oldWorkingDirectory = os.getcwd() # ensure the clientPath exists new_client_dir = False if not os.path.exists(self.clientPath): new_client_dir = True os.makedirs(self.clientPath) chdir(self.clientPath, is_client_path=True) if self.dry_run: print "Would synchronize p4 checkout in %s" % self.clientPath else: print "Synchronizing p4 checkout..." if new_client_dir: # old one was destroyed, and maybe nobody told p4 p4_sync("...", "-f") else: p4_sync("...") self.check() commits = [] for line in read_pipe_lines(["git", "rev-list", "--no-merges", "%s..%s" % (self.origin, self.master)]): commits.append(line.strip()) commits.reverse() if self.preserveUser or gitConfigBool("git-p4.skipUserNameCheck"): self.checkAuthorship = False else: self.checkAuthorship = True if self.preserveUser: self.checkValidP4Users(commits) # # Build up a set of options to be passed to diff when # submitting each commit to p4. # if self.detectRenames: # command-line -M arg self.diffOpts = "-M" else: # If not explicitly set check the config variable detectRenames = gitConfig("git-p4.detectRenames") if detectRenames.lower() == "false" or detectRenames == "": self.diffOpts = "" elif detectRenames.lower() == "true": self.diffOpts = "-M" else: self.diffOpts = "-M%s" % detectRenames # no command-line arg for -C or --find-copies-harder, just # config variables detectCopies = gitConfig("git-p4.detectCopies") if detectCopies.lower() == "false" or detectCopies == "": pass elif detectCopies.lower() == "true": self.diffOpts += " -C" else: self.diffOpts += " -C%s" % detectCopies if gitConfigBool("git-p4.detectCopiesHarder"): self.diffOpts += " --find-copies-harder" # # Apply the commits, one at a time. On failure, ask if should # continue to try the rest of the patches, or quit. # if self.dry_run: print "Would apply" applied = [] last = len(commits) - 1 for i, commit in enumerate(commits): if self.dry_run: print " ", read_pipe(["git", "show", "-s", "--format=format:%h %s", commit]) ok = True else: ok = self.applyCommit(commit) if ok: applied.append(commit) else: if self.prepare_p4_only and i < last: print "Processing only the first commit due to option" \ " --prepare-p4-only" break if i < last: quit = False while True: # prompt for what to do, or use the option/variable if self.conflict_behavior == "ask": print "What do you want to do?" response = raw_input("[s]kip this commit but apply" " the rest, or [q]uit? ") if not response: continue elif self.conflict_behavior == "skip": response = "s" elif self.conflict_behavior == "quit": response = "q" else: die("Unknown conflict_behavior '%s'" % self.conflict_behavior) if response[0] == "s": print "Skipping this commit, but applying the rest" break if response[0] == "q": print "Quitting" quit = True break if quit: break chdir(self.oldWorkingDirectory) if self.dry_run: pass elif self.prepare_p4_only: pass elif len(commits) == len(applied): print "All commits applied!" sync = P4Sync() if self.branch: sync.branch = self.branch sync.run([]) rebase = P4Rebase() rebase.rebase() else: if len(applied) == 0: print "No commits applied." else: print "Applied only the commits marked with '*':" for c in commits: if c in applied: star = "*" else: star = " " print star, read_pipe(["git", "show", "-s", "--format=format:%h %s", c]) print "You will have to do 'git p4 sync' and rebase." if gitConfigBool("git-p4.exportLabels"): self.exportLabels = True if self.exportLabels: p4Labels = getP4Labels(self.depotPath) gitTags = getGitTags() missingGitTags = gitTags - p4Labels self.exportGitTags(missingGitTags) # exit with error unless everything applied perfectly if len(commits) != len(applied): sys.exit(1) return True class View(object): """Represent a p4 view ("p4 help views"), and map files in a repo according to the view.""" def __init__(self, client_name): self.mappings = [] self.client_prefix = "//%s/" % client_name # cache results of "p4 where" to lookup client file locations self.client_spec_path_cache = {} def append(self, view_line): """Parse a view line, splitting it into depot and client sides. Append to self.mappings, preserving order. This is only needed for tag creation.""" # Split the view line into exactly two words. P4 enforces # structure on these lines that simplifies this quite a bit. # # Either or both words may be double-quoted. # Single quotes do not matter. # Double-quote marks cannot occur inside the words. # A + or - prefix is also inside the quotes. # There are no quotes unless they contain a space. # The line is already white-space stripped. # The two words are separated by a single space. # if view_line[0] == '"': # First word is double quoted. Find its end. close_quote_index = view_line.find('"', 1) if close_quote_index <= 0: die("No first-word closing quote found: %s" % view_line) depot_side = view_line[1:close_quote_index] # skip closing quote and space rhs_index = close_quote_index + 1 + 1 else: space_index = view_line.find(" ") if space_index <= 0: die("No word-splitting space found: %s" % view_line) depot_side = view_line[0:space_index] rhs_index = space_index + 1 # prefix + means overlay on previous mapping if depot_side.startswith("+"): depot_side = depot_side[1:] # prefix - means exclude this path, leave out of mappings exclude = False if depot_side.startswith("-"): exclude = True depot_side = depot_side[1:] if not exclude: self.mappings.append(depot_side) def convert_client_path(self, clientFile): # chop off //client/ part to make it relative if not clientFile.startswith(self.client_prefix): die("No prefix '%s' on clientFile '%s'" % (self.client_prefix, clientFile)) return clientFile[len(self.client_prefix):] def update_client_spec_path_cache(self, files): """ Caching file paths by "p4 where" batch query """ # List depot file paths exclude that already cached fileArgs = [f['path'] for f in files if f['path'] not in self.client_spec_path_cache] if len(fileArgs) == 0: return # All files in cache where_result = p4CmdList(["-x", "-", "where"], stdin=fileArgs) for res in where_result: if "code" in res and res["code"] == "error": # assume error is "... file(s) not in client view" continue if "clientFile" not in res: die("No clientFile in 'p4 where' output") if "unmap" in res: # it will list all of them, but only one not unmap-ped continue if gitConfigBool("core.ignorecase"): res['depotFile'] = res['depotFile'].lower() self.client_spec_path_cache[res['depotFile']] = self.convert_client_path(res["clientFile"]) # not found files or unmap files set to "" for depotFile in fileArgs: if gitConfigBool("core.ignorecase"): depotFile = depotFile.lower() if depotFile not in self.client_spec_path_cache: self.client_spec_path_cache[depotFile] = "" def map_in_client(self, depot_path): """Return the relative location in the client where this depot file should live. Returns "" if the file should not be mapped in the client.""" if gitConfigBool("core.ignorecase"): depot_path = depot_path.lower() if depot_path in self.client_spec_path_cache: return self.client_spec_path_cache[depot_path] die( "Error: %s is not found in client spec path" % depot_path ) return "" class P4Sync(Command, P4UserMap): delete_actions = ( "delete", "move/delete", "purge" ) def __init__(self): Command.__init__(self) P4UserMap.__init__(self) self.options = [ optparse.make_option("--branch", dest="branch"), optparse.make_option("--detect-branches", dest="detectBranches", action="store_true"), optparse.make_option("--changesfile", dest="changesFile"), optparse.make_option("--silent", dest="silent", action="store_true"), optparse.make_option("--detect-labels", dest="detectLabels", action="store_true"), optparse.make_option("--import-labels", dest="importLabels", action="store_true"), optparse.make_option("--import-local", dest="importIntoRemotes", action="store_false", help="Import into refs/heads/ , not refs/remotes"), optparse.make_option("--max-changes", dest="maxChanges", help="Maximum number of changes to import"), optparse.make_option("--changes-block-size", dest="changes_block_size", type="int", help="Internal block size to use when iteratively calling p4 changes"), optparse.make_option("--keep-path", dest="keepRepoPath", action='store_true', help="Keep entire BRANCH/DIR/SUBDIR prefix during import"), optparse.make_option("--use-client-spec", dest="useClientSpec", action='store_true', help="Only sync files that are included in the Perforce Client Spec"), optparse.make_option("-/", dest="cloneExclude", action="append", type="string", help="exclude depot path"), ] 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.importLabels = False self.changesFile = "" self.syncWithOrigin = True self.importIntoRemotes = True self.maxChanges = "" self.changes_block_size = None self.keepRepoPath = False self.depotPaths = None self.p4BranchesInGit = [] self.cloneExclude = [] self.useClientSpec = False self.useClientSpec_from_options = False self.clientSpecDirs = None self.tempBranches = [] self.tempBranchLocation = "git-p4-tmp" if gitConfig("git-p4.syncFromOrigin") == "false": self.syncWithOrigin = False # This is required for the "append" cloneExclude action def ensure_value(self, attr, value): if not hasattr(self, attr) or getattr(self, attr) is None: setattr(self, attr, value) return getattr(self, attr) # Force a checkpoint in fast-import and wait for it to finish def checkpoint(self): self.gitStream.write("checkpoint\n\n") self.gitStream.write("progress checkpoint\n\n") out = self.gitOutput.readline() if self.verbose: print "checkpoint finished: " + out def extractFilesFromCommit(self, commit): self.cloneExclude = [re.sub(r"\.\.\.$", "", path) for path in self.cloneExclude] files = [] fnum = 0 while commit.has_key("depotFile%s" % fnum): path = commit["depotFile%s" % fnum] if [p for p in self.cloneExclude if p4PathStartsWith(path, p)]: found = False else: found = [p for p in self.depotPaths if p4PathStartsWith(path, p)] if not found: fnum = fnum + 1 continue file = {} file["path"] = path file["rev"] = commit["rev%s" % fnum] file["action"] = commit["action%s" % fnum] file["type"] = commit["type%s" % fnum] files.append(file) fnum = fnum + 1 return files def stripRepoPath(self, path, prefixes): """When streaming files, this is called to map a p4 depot path to where it should go in git. The prefixes are either self.depotPaths, or self.branchPrefixes in the case of branch detection.""" if self.useClientSpec: # branch detection moves files up a level (the branch name) # from what client spec interpretation gives path = self.clientSpecDirs.map_in_client(path) if self.detectBranches: for b in self.knownBranches: if path.startswith(b + "/"): path = path[len(b)+1:] elif self.keepRepoPath: # Preserve everything in relative path name except leading # //depot/; just look at first prefix as they all should # be in the same depot. depot = re.sub("^(//[^/]+/).*", r'\1', prefixes[0]) if p4PathStartsWith(path, depot): path = path[len(depot):] else: for p in prefixes: if p4PathStartsWith(path, p): path = path[len(p):] break path = wildcard_decode(path) return path def splitFilesIntoBranches(self, commit): """Look at each depotFile in the commit to figure out to what branch it belongs.""" if self.clientSpecDirs: files = self.extractFilesFromCommit(commit) self.clientSpecDirs.update_client_spec_path_cache(files) branches = {} fnum = 0 while commit.has_key("depotFile%s" % fnum): path = commit["depotFile%s" % fnum] found = [p for p in self.depotPaths if p4PathStartsWith(path, p)] if not found: fnum = fnum + 1 continue file = {} file["path"] = path file["rev"] = commit["rev%s" % fnum] file["action"] = commit["action%s" % fnum] file["type"] = commit["type%s" % fnum] fnum = fnum + 1 # start with the full relative path where this file would # go in a p4 client if self.useClientSpec: relPath = self.clientSpecDirs.map_in_client(path) else: relPath = self.stripRepoPath(path, self.depotPaths) for branch in self.knownBranches.keys(): # add a trailing slash so that a commit into qt/4.2foo # doesn't end up in qt/4.2, e.g. if relPath.startswith(branch + "/"): if branch not in branches: branches[branch] = [] branches[branch].append(file) break return branches # output one file from the P4 stream # - helper for streamP4Files def streamOneP4File(self, file, contents): relPath = self.stripRepoPath(file['depotFile'], self.branchPrefixes) if verbose: sys.stderr.write("%s\n" % relPath) (type_base, type_mods) = split_p4_type(file["type"]) git_mode = "100644" if "x" in type_mods: git_mode = "100755" if type_base == "symlink": git_mode = "120000" # p4 print on a symlink sometimes contains "target\n"; # if it does, remove the newline data = ''.join(contents) if not data: # Some version of p4 allowed creating a symlink that pointed # to nothing. This causes p4 errors when checking out such # a change, and errors here too. Work around it by ignoring # the bad symlink; hopefully a future change fixes it. print "\nIgnoring empty symlink in %s" % file['depotFile'] return elif data[-1] == '\n': contents = [data[:-1]] else: contents = [data] if type_base == "utf16": # p4 delivers different text in the python output to -G # than it does when using "print -o", or normal p4 client # operations. utf16 is converted to ascii or utf8, perhaps. # But ascii text saved as -t utf16 is completely mangled. # Invoke print -o to get the real contents. # # On windows, the newlines will always be mangled by print, so put # them back too. This is not needed to the cygwin windows version, # just the native "NT" type. # text = p4_read_pipe(['print', '-q', '-o', '-', "%s@%s" % (file['depotFile'], file['change']) ]) if p4_version_string().find("/NT") >= 0: text = text.replace("\r\n", "\n") contents = [ text ] if type_base == "apple": # Apple filetype files will be streamed as a concatenation of # its appledouble header and the contents. This is useless # on both macs and non-macs. If using "print -q -o xx", it # will create "xx" with the data, and "%xx" with the header. # This is also not very useful. # # Ideally, someday, this script can learn how to generate # appledouble files directly and import those to git, but # non-mac machines can never find a use for apple filetype. print "\nIgnoring apple filetype file %s" % file['depotFile'] return # Note that we do not try to de-mangle keywords on utf16 files, # even though in theory somebody may want that. pattern = p4_keywords_regexp_for_type(type_base, type_mods) if pattern: regexp = re.compile(pattern, re.VERBOSE) text = ''.join(contents) text = regexp.sub(r'$\1$', text) contents = [ text ] self.gitStream.write("M %s inline %s\n" % (git_mode, relPath)) # total length... length = 0 for d in contents: length = length + len(d) self.gitStream.write("data %d\n" % length) for d in contents: self.gitStream.write(d) self.gitStream.write("\n") def streamOneP4Deletion(self, file): relPath = self.stripRepoPath(file['path'], self.branchPrefixes) if verbose: sys.stderr.write("delete %s\n" % relPath) self.gitStream.write("D %s\n" % relPath) # handle another chunk of streaming data def streamP4FilesCb(self, marshalled): # catch p4 errors and complain err = None if "code" in marshalled: if marshalled["code"] == "error": if "data" in marshalled: err = marshalled["data"].rstrip() if err: f = None if self.stream_have_file_info: if "depotFile" in self.stream_file: f = self.stream_file["depotFile"] # force a failure in fast-import, else an empty # commit will be made self.gitStream.write("\n") self.gitStream.write("die-now\n") self.gitStream.close() # ignore errors, but make sure it exits first self.importProcess.wait() if f: die("Error from p4 print for %s: %s" % (f, err)) else: die("Error from p4 print: %s" % err) if marshalled.has_key('depotFile') and self.stream_have_file_info: # start of a new file - output the old one first self.streamOneP4File(self.stream_file, self.stream_contents) self.stream_file = {} self.stream_contents = [] self.stream_have_file_info = False # pick up the new file information... for the # 'data' field we need to append to our array for k in marshalled.keys(): if k == 'data': self.stream_contents.append(marshalled['data']) else: self.stream_file[k] = marshalled[k] self.stream_have_file_info = True # Stream directly from "p4 files" into "git fast-import" def streamP4Files(self, files): filesForCommit = [] filesToRead = [] filesToDelete = [] for f in files: # if using a client spec, only add the files that have # a path in the client if self.clientSpecDirs: if self.clientSpecDirs.map_in_client(f['path']) == "": continue filesForCommit.append(f) if f['action'] in self.delete_actions: filesToDelete.append(f) else: filesToRead.append(f) # deleted files... for f in filesToDelete: self.streamOneP4Deletion(f) if len(filesToRead) > 0: self.stream_file = {} self.stream_contents = [] self.stream_have_file_info = False # curry self argument def streamP4FilesCbSelf(entry): self.streamP4FilesCb(entry) fileArgs = ['%s#%s' % (f['path'], f['rev']) for f in filesToRead] p4CmdList(["-x", "-", "print"], stdin=fileArgs, cb=streamP4FilesCbSelf) # do the last chunk if self.stream_file.has_key('depotFile'): self.streamOneP4File(self.stream_file, self.stream_contents) def make_email(self, userid): if userid in self.users: return self.users[userid] else: return "%s " % userid # Stream a p4 tag def streamTag(self, gitStream, labelName, labelDetails, commit, epoch): if verbose: print "writing tag %s for commit %s" % (labelName, commit) gitStream.write("tag %s\n" % labelName) gitStream.write("from %s\n" % commit) if labelDetails.has_key('Owner'): owner = labelDetails["Owner"] else: owner = None # Try to use the owner of the p4 label, or failing that, # the current p4 user id. if owner: email = self.make_email(owner) else: email = self.make_email(self.p4UserId()) tagger = "%s %s %s" % (email, epoch, self.tz) gitStream.write("tagger %s\n" % tagger) print "labelDetails=",labelDetails if labelDetails.has_key('Description'): description = labelDetails['Description'] else: description = 'Label from git p4' gitStream.write("data %d\n" % len(description)) gitStream.write(description) gitStream.write("\n") def commit(self, details, files, branch, parent = ""): epoch = details["time"] author = details["user"] if self.verbose: print "commit into %s" % branch # start with reading files; if that fails, we should not # create a commit. new_files = [] for f in files: if [p for p in self.branchPrefixes if p4PathStartsWith(f['path'], p)]: new_files.append (f) else: sys.stderr.write("Ignoring file outside of prefix: %s\n" % f['path']) if self.clientSpecDirs: self.clientSpecDirs.update_client_spec_path_cache(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() committer = "%s %s %s" % (self.make_email(author), epoch, self.tz) self.gitStream.write("committer %s\n" % committer) self.gitStream.write("data < 0: self.gitStream.write(": options = %s" % details['options']) self.gitStream.write("]\nEOT\n\n") if len(parent) > 0: if self.verbose: print "parent %s" % parent self.gitStream.write("from %s\n" % parent) self.streamP4Files(new_files) self.gitStream.write("\n") change = int(details["change"]) if self.labels.has_key(change): label = self.labels[change] labelDetails = label[0] labelRevisions = label[1] if self.verbose: print "Change %s is labelled %s" % (change, labelDetails) files = p4CmdList(["files"] + ["%s...@%s" % (p, change) for p in self.branchPrefixes]) if len(files) == len(labelRevisions): cleanedFiles = {} for info in files: if info["action"] in self.delete_actions: continue cleanedFiles[info["depotFile"]] = info["rev"] if cleanedFiles == labelRevisions: self.streamTag(self.gitStream, 'tag_%s' % labelDetails['label'], labelDetails, branch, epoch) 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)) # Build a dictionary of changelists and labels, for "detect-labels" option. def getLabels(self): self.labels = {} l = p4CmdList(["labels"] + ["%s..." % p for p in self.depotPaths]) if len(l) > 0 and not self.silent: print "Finding files belonging to labels in %s" % `self.depotPaths` for output in l: label = output["label"] revisions = {} newestChange = 0 if self.verbose: print "Querying files for label %s" % label for file in p4CmdList(["files"] + ["%s...@%s" % (p, label) for p in self.depotPaths]): revisions[file["depotFile"]] = file["rev"] change = int(file["change"]) if change > newestChange: newestChange = change self.labels[newestChange] = [output, revisions] if self.verbose: print "Label changes: %s" % self.labels.keys() # Import p4 labels as git tags. A direct mapping does not # exist, so assume that if all the files are at the same revision # then we can use that, or it's something more complicated we should # just ignore. def importP4Labels(self, stream, p4Labels): if verbose: print "import p4 labels: " + ' '.join(p4Labels) ignoredP4Labels = gitConfigList("git-p4.ignoredP4Labels") validLabelRegexp = gitConfig("git-p4.labelImportRegexp") if len(validLabelRegexp) == 0: validLabelRegexp = defaultLabelRegexp m = re.compile(validLabelRegexp) for name in p4Labels: commitFound = False if not m.match(name): if verbose: print "label %s does not match regexp %s" % (name,validLabelRegexp) continue if name in ignoredP4Labels: continue labelDetails = p4CmdList(['label', "-o", name])[0] # get the most recent changelist for each file in this label change = p4Cmd(["changes", "-m", "1"] + ["%s...@%s" % (p, name) for p in self.depotPaths]) if change.has_key('change'): # find the corresponding git commit; take the oldest commit changelist = int(change['change']) gitCommit = read_pipe(["git", "rev-list", "--max-count=1", "--reverse", ":/\[git-p4:.*change = %d\]" % changelist]) if len(gitCommit) == 0: print "could not find git commit for changelist %d" % changelist else: gitCommit = gitCommit.strip() commitFound = True # Convert from p4 time format try: tmwhen = time.strptime(labelDetails['Update'], "%Y/%m/%d %H:%M:%S") except ValueError: print "Could not convert label time %s" % labelDetails['Update'] tmwhen = 1 when = int(time.mktime(tmwhen)) self.streamTag(stream, name, labelDetails, gitCommit, when) if verbose: print "p4 label %s mapped to git commit %s" % (name, gitCommit) else: if verbose: print "Label %s has no changelists - possibly deleted?" % name if not commitFound: # We can't import this label; don't try again as it will get very # expensive repeatedly fetching all the files for labels that will # never be imported. If the label is moved in the future, the # ignore will need to be removed manually. system(["git", "config", "--add", "git-p4.ignoredP4Labels", name]) def guessProjectName(self): for p in self.depotPaths: if p.endswith("/"): p = p[:-1] p = p[p.strip().rfind("/") + 1:] if not p.endswith("/"): p += "/" return p def getBranchMapping(self): lostAndFoundBranches = set() user = gitConfig("git-p4.branchUser") if len(user) > 0: command = "branches -u %s" % user else: command = "branches" for info in p4CmdList(command): details = p4Cmd(["branch", "-o", info["branch"]]) viewIdx = 0 while details.has_key("View%s" % viewIdx): paths = details["View%s" % viewIdx].split(" ") viewIdx = viewIdx + 1 # require standard //depot/foo/... //depot/bar/... mapping if len(paths) != 2 or not paths[0].endswith("/...") or not paths[1].endswith("/..."): continue source = paths[0] destination = paths[1] ## HACK if p4PathStartsWith(source, self.depotPaths[0]) and p4PathStartsWith(destination, self.depotPaths[0]): source = source[len(self.depotPaths[0]):-4] destination = destination[len(self.depotPaths[0]):-4] if destination in self.knownBranches: if not self.silent: print "p4 branch %s defines a mapping from %s to %s" % (info["branch"], source, destination) print "but there exists another mapping from %s to %s already!" % (self.knownBranches[destination], destination) continue self.knownBranches[destination] = source lostAndFoundBranches.discard(destination) if source not in self.knownBranches: lostAndFoundBranches.add(source) # Perforce does not strictly require branches to be defined, so we also # check git config for a branch list. # # Example of branch definition in git config file: # [git-p4] # branchList=main:branchA # branchList=main:branchB # branchList=branchA:branchC configBranches = gitConfigList("git-p4.branchList") for branch in configBranches: if branch: (source, destination) = branch.split(":") self.knownBranches[destination] = source lostAndFoundBranches.discard(destination) if source not in self.knownBranches: lostAndFoundBranches.add(source) for branch in lostAndFoundBranches: self.knownBranches[branch] = branch def getBranchMappingFromGitBranches(self): branches = p4BranchesInGit(self.importIntoRemotes) for branch in branches.keys(): if branch == "master": branch = "main" else: branch = branch[len(self.projectName):] self.knownBranches[branch] = branch def 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, self.changes_block_size) 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 searchParent(self, parent, branch, target): parentFound = False for blob in read_pipe_lines(["git", "rev-list", "--reverse", "--no-merges", parent]): blob = blob.strip() if len(read_pipe(["git", "diff-tree", blob, target])) == 0: parentFound = True if self.verbose: print "Found parent of %s in commit %s" % (branch, blob) break if parentFound: return blob else: return None def importChanges(self, changes): cnt = 1 for change in changes: description = p4_describe(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 + "/" self.branchPrefixes = [ branchPrefix ] 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] blob = None if len(parent) > 0: tempBranch = "%s/%d" % (self.tempBranchLocation, change) if self.verbose: print "Creating temporary branch: " + tempBranch self.commit(description, filesForCommit, tempBranch) self.tempBranches.append(tempBranch) self.checkpoint() blob = self.searchParent(parent, branch, tempBranch) if blob: self.commit(description, filesForCommit, branch, blob) else: if self.verbose: print "Parent of %s not found. Committing into head of %s" % (branch, parent) self.commit(description, filesForCommit, branch, parent) else: files = self.extractFilesFromCommit(description) self.commit(description, files, self.branch, self.initialParent) # only needed once, to connect to the previous commit 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 = {} details["user"] = "git perforce import user" details["desc"] = ("Initial import of %s from the state at revision %s\n" % (' '.join(self.depotPaths), revision)) details["change"] = revision newestRevision = 0 fileCnt = 0 fileArgs = ["%s...%s" % (p,revision) for p in self.depotPaths] for info in p4CmdList(["files"] + fileArgs): if 'code' in info and info['code'] == 'error': sys.stderr.write("p4 returned an error: %s\n" % info['data']) if info['data'].find("must refer to client") >= 0: sys.stderr.write("This particular p4 error is misleading.\n") sys.stderr.write("Perhaps the depot path was misspelled.\n"); sys.stderr.write("Depot path: %s\n" % " ".join(self.depotPaths)) sys.exit(1) if 'p4ExitCode' in info: sys.stderr.write("p4 exitcode: %s\n" % info['p4ExitCode']) sys.exit(1) change = int(info["change"]) if change > newestRevision: newestRevision = change if info["action"] in self.delete_actions: # don't increase the file cnt, otherwise details["depotFile123"] will have gaps! #fileCnt = fileCnt + 1 continue for prop in ["depotFile", "rev", "action", "type" ]: details["%s%s" % (prop, fileCnt)] = info[prop] fileCnt = fileCnt + 1 details["change"] = newestRevision # Use time from top-most change so that all git p4 clones of # the same p4 repo have the same commit SHA1s. res = p4_describe(newestRevision) details["time"] = res["time"] self.updateOptionDict(details) try: self.commit(details, self.extractFilesFromCommit(details), self.branch) 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.previousDepotPaths = [] self.hasOrigin = False # map from branch depot path to parent branch self.knownBranches = {} self.initialParents = {} if self.importIntoRemotes: self.refPrefix = "refs/remotes/p4/" else: self.refPrefix = "refs/heads/p4/" if self.syncWithOrigin: self.hasOrigin = originP4BranchesExist() if self.hasOrigin: if not self.silent: print 'Syncing with origin first, using "git fetch origin"' system("git fetch origin") branch_arg_given = bool(self.branch) if len(self.branch) == 0: self.branch = self.refPrefix + "master" if gitBranchExists("refs/heads/p4") and self.importIntoRemotes: system("git update-ref %s refs/heads/p4" % self.branch) system("git branch -D p4") # accept either the command-line option, or the configuration variable if self.useClientSpec: # will use this after clone to set the variable self.useClientSpec_from_options = True else: if gitConfigBool("git-p4.useclientspec"): self.useClientSpec = True if self.useClientSpec: self.clientSpecDirs = getClientSpec() # TODO: should always look at previous commits, # merge with previous imports, if possible. if args == []: if self.hasOrigin: createOrUpdateBranchesFromOrigin(self.refPrefix, self.silent) # branches holds mapping from branch name to sha1 branches = p4BranchesInGit(self.importIntoRemotes) # restrict to just this one, disabling detect-branches if branch_arg_given: short = self.branch.split("/")[-1] if short in branches: self.p4BranchesInGit = [ short ] else: self.p4BranchesInGit = branches.keys() if len(self.p4BranchesInGit) > 1: if not self.silent: print "Importing from/into multiple branches" self.detectBranches = True for branch in branches.keys(): self.initialParents[self.refPrefix + branch] = \ branches[branch] 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): prev_list = prev.split("/") cur_list = cur.split("/") for i in range(0, min(len(cur_list), len(prev_list))): if cur_list[i] <> prev_list[i]: i = i - 1 break paths.append ("/".join(cur_list[:i + 1])) self.previousDepotPaths = paths if p4Change > 0: self.depotPaths = sorted(self.previousDepotPaths) self.changeRange = "@%s,#head" % p4Change if not self.silent and not self.detectBranches: print "Performing incremental import into %s git branch" % self.branch # accept multiple ref name abbreviations: # refs/foo/bar/branch -> use it exactly # p4/branch -> prepend refs/remotes/ or refs/heads/ # branch -> prepend refs/remotes/p4/ or refs/heads/p4/ if not self.branch.startswith("refs/"): if self.importIntoRemotes: prepend = "refs/remotes/" else: prepend = "refs/heads/" if not self.branch.startswith("p4/"): prepend += "p4/" self.branch = prepend + self.branch if len(args) == 0 and self.depotPaths: if not self.silent: print "Depot paths: %s" % ' '.join(self.depotPaths) 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 = {} # Make sure no revision specifiers are used when --changesfile # is specified. bad_changesfile = False if len(self.changesFile) > 0: for p in self.depotPaths: if p.find("@") >= 0 or p.find("#") >= 0: bad_changesfile = True break if bad_changesfile: die("Option --changesfile is incompatible with revision specifiers") newPaths = [] for p in self.depotPaths: if p.find("@") != -1: atIdx = p.index("@") self.changeRange = p[atIdx:] if self.changeRange == "@all": self.changeRange = "" elif ',' not in self.changeRange: revision = self.changeRange self.changeRange = "" p = p[:atIdx] elif p.find("#") != -1: hashIdx = p.index("#") revision = p[hashIdx:] p = p[:hashIdx] elif self.previousDepotPaths == []: # pay attention to changesfile, if given, else import # the entire p4 tree at the head revision if len(self.changesFile) == 0: revision = "#head" p = re.sub ("\.\.\.$", "", p) if not p.endswith("/"): p += "/" newPaths.append(p) self.depotPaths = newPaths # --detect-branches may change this for each branch self.branchPrefixes = self.depotPaths self.loadUserMapFromCache() self.labels = {} if self.detectLabels: self.getLabels(); if self.detectBranches: ## FIXME - what's a P4 projectName ? self.projectName = self.guessProjectName() if self.hasOrigin: self.getBranchMappingFromGitBranches() else: self.getBranchMapping() if self.verbose: print "p4-git branches: %s" % self.p4BranchesInGit print "initial parents: %s" % self.initialParents for b in self.p4BranchesInGit: if b != "master": ## FIXME b = b[len(self.projectName):] self.createdBranches.add(b) self.tz = "%+03d%02d" % (- time.timezone / 3600, ((- time.timezone % 3600) / 60)) self.importProcess = subprocess.Popen(["git", "fast-import"], stdin=subprocess.PIPE, stdout=subprocess.PIPE, stderr=subprocess.PIPE); self.gitOutput = self.importProcess.stdout self.gitStream = self.importProcess.stdin self.gitError = self.importProcess.stderr if revision: self.importHeadRevision(revision) else: changes = [] if len(self.changesFile) > 0: output = open(self.changesFile).readlines() changeSet = set() for line in output: changeSet.add(int(line)) for change in changeSet: changes.append(change) changes.sort() else: # catch "git p4 sync" with no new branches, in a repo that # does not have any existing p4 branches if len(args) == 0: if not self.p4BranchesInGit: die("No remote p4 branches. Perhaps you never did \"git p4 clone\" in here.") # The default branch is master, unless --branch is used to # specify something else. Make sure it exists, or complain # nicely about how to use --branch. if not self.detectBranches: if not branch_exists(self.branch): if branch_arg_given: die("Error: branch %s does not exist." % self.branch) else: die("Error: no branch %s; perhaps specify one with --branch." % self.branch) if self.verbose: print "Getting p4 changes for %s...%s" % (', '.join(self.depotPaths), self.changeRange) changes = p4ChangesForPaths(self.depotPaths, self.changeRange, self.changes_block_size) 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!" else: if not self.silent and not self.detectBranches: print "Import destination: %s" % self.branch self.updatedBranches = set() if not self.detectBranches: if args: # start a new branch self.initialParent = "" else: # build on a previous revision self.initialParent = parseRevision(self.branch) 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") if gitConfigBool("git-p4.importLabels"): self.importLabels = True if self.importLabels: p4Labels = getP4Labels(self.depotPaths) gitTags = getGitTags() missingP4Labels = p4Labels - gitTags self.importP4Labels(self.gitStream, missingP4Labels) self.gitStream.close() if self.importProcess.wait() != 0: die("fast-import failed: %s" % self.gitError.read()) self.gitOutput.close() self.gitError.close() # Cleanup temporary branches created during import if self.tempBranches != []: for branch in self.tempBranches: read_pipe("git update-ref -d %s" % branch) os.rmdir(os.path.join(os.environ.get("GIT_DIR", ".git"), self.tempBranchLocation)) # Create a symbolic ref p4/HEAD pointing to p4/ to allow # a convenient shortcut refname "p4". if self.importIntoRemotes: head_ref = self.refPrefix + "HEAD" if not gitBranchExists(head_ref) and gitBranchExists(self.branch): system(["git", "symbolic-ref", head_ref, self.branch]) return True class P4Rebase(Command): def __init__(self): Command.__init__(self) self.options = [ optparse.make_option("--import-labels", dest="importLabels", action="store_true"), ] self.importLabels = False self.description = ("Fetches the latest revision from perforce and " + "rebases the current work (branch) against it") def run(self, args): sync = P4Sync() sync.importLabels = self.importLabels sync.run([]) return self.rebase() def rebase(self): if os.system("git update-index --refresh") != 0: die("Some files in your working directory are modified and different than what is in your index. You can use git update-index to bring the index up-to-date or stash away all your changes with git stash."); if len(read_pipe("git diff-index HEAD --")) > 0: die("You have uncommitted changes. Please commit them before rebasing or stash them away with git stash."); [upstream, settings] = findUpstreamBranchPoint() if len(upstream) == 0: die("Cannot find upstream branchpoint for rebase") # the branchpoint may be p4/foo~3, so strip off the parent upstream = re.sub("~[0-9]+$", "", upstream) print "Rebasing the current branch onto %s" % upstream oldHead = read_pipe("git rev-parse HEAD").strip() system("git rebase %s" % upstream) system("git diff-tree --stat --summary -M %s HEAD --" % oldHead) return True class P4Clone(P4Sync): def __init__(self): P4Sync.__init__(self) self.description = "Creates a new git repository and imports from Perforce into it" self.usage = "usage: %prog [options] //depot/path[@revRange]" self.options += [ optparse.make_option("--destination", dest="cloneDestination", action='store', default=None, help="where to leave result of the clone"), optparse.make_option("--bare", dest="cloneBare", action="store_true", default=False), ] self.cloneDestination = None self.needsGit = False self.cloneBare = 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] self.cloneExclude = ["/"+p for p in self.cloneExclude] for p in depotPaths: if not p.startswith("//"): sys.stderr.write('Depot paths must start with "//": %s\n' % p) return False if not self.cloneDestination: self.cloneDestination = self.defaultDestination(args) print "Importing from %s into %s" % (', '.join(depotPaths), self.cloneDestination) if not os.path.exists(self.cloneDestination): os.makedirs(self.cloneDestination) chdir(self.cloneDestination) init_cmd = [ "git", "init" ] if self.cloneBare: init_cmd.append("--bare") retcode = subprocess.call(init_cmd) if retcode: raise CalledProcessError(retcode, init_cmd) if not P4Sync.run(self, depotPaths): return False # create a master branch and check out a work tree if gitBranchExists(self.branch): system([ "git", "branch", "master", self.branch ]) if not self.cloneBare: system([ "git", "checkout", "-f" ]) else: print 'Not checking out any branch, use ' \ '"git checkout -q -b master "' # auto-set this variable if invoked with --use-client-spec if self.useClientSpec_from_options: system("git config --bool git-p4.useclientspec true") 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 [options]" % sys.argv[0] print "" print "valid commands: %s" % ", ".join(commands) print "" print "Try %s --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) 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:] options.append(optparse.make_option("--verbose", "-v", dest="verbose", action="store_true")) if cmd.needsGit: options.append(optparse.make_option("--git-dir", dest="gitdir")) parser = optparse.OptionParser(cmd.usage.replace("%prog", "%prog " + cmdName), options, description = cmd.description, formatter = HelpFormatter()) (cmd, args) = parser.parse_args(sys.argv[2:], cmd); global verbose verbose = cmd.verbose if cmd.needsGit: if cmd.gitdir == None: cmd.gitdir = os.path.abspath(".git") if not isValidGitDir(cmd.gitdir): cmd.gitdir = read_pipe("git rev-parse --git-dir").strip() if os.path.exists(cmd.gitdir): cdup = read_pipe("git rev-parse --show-cdup").strip() if len(cdup) > 0: chdir(cdup); if not isValidGitDir(cmd.gitdir): if isValidGitDir(cmd.gitdir + "/.git"): cmd.gitdir += "/.git" else: die("fatal: cannot locate git repository at %s" % cmd.gitdir) os.environ["GIT_DIR"] = cmd.gitdir if not cmd.run(args): parser.print_help() sys.exit(2) if __name__ == '__main__': main()