git.oblomov.eu Git - git/blob - contrib/fast-import/git-p4

   1 #!/usr/bin/env python
   2 #
   3 # git-p4.py -- A tool for bidirectional operation between a Perforce depot and git.
   4 #
   5 # Author: Simon Hausmann <simon@lst.de>
   6 # Copyright: 2007 Simon Hausmann <simon@lst.de>
   7 #            2007 Trolltech ASA
   8 # License: MIT <http://www.opensource.org/licenses/mit-license.php>
   9 #
  10
  11 import optparse, sys, os, marshal, subprocess, shelve
  12 import tempfile, getopt, os.path, time, platform
  13 import re
  14
  15 verbose = False
  16
  17
  18 def p4_build_cmd(cmd):
  19     """Build a suitable p4 command line.
  20
  21     This consolidates building and returning a p4 command line into one
  22     location. It means that hooking into the environment, or other configuration
  23     can be done more easily.
  24     """
  25     real_cmd = "%s " % "p4"
  26
  27     user = gitConfig("git-p4.user")
  28     if len(user) > 0:
  29         real_cmd += "-u %s " % user
  30
  31     password = gitConfig("git-p4.password")
  32     if len(password) > 0:
  33         real_cmd += "-P %s " % password
  34
  35     port = gitConfig("git-p4.port")
  36     if len(port) > 0:
  37         real_cmd += "-p %s " % port
  38
  39     host = gitConfig("git-p4.host")
  40     if len(host) > 0:
  41         real_cmd += "-h %s " % host
  42
  43     client = gitConfig("git-p4.client")
  44     if len(client) > 0:
  45         real_cmd += "-c %s " % client
  46
  47     real_cmd += "%s" % (cmd)
  48     if verbose:
  49         print real_cmd
  50     return real_cmd
  51
  52 def chdir(dir):
  53     if os.name == 'nt':
  54         os.environ['PWD']=dir
  55     os.chdir(dir)
  56
  57 def die(msg):
  58     if verbose:
  59         raise Exception(msg)
  60     else:
  61         sys.stderr.write(msg + "\n")
  62         sys.exit(1)
  63
  64 def write_pipe(c, str):
  65     if verbose:
  66         sys.stderr.write('Writing pipe: %s\n' % c)
  67
  68     pipe = os.popen(c, 'w')
  69     val = pipe.write(str)
  70     if pipe.close():
  71         die('Command failed: %s' % c)
  72
  73     return val
  74
  75 def p4_write_pipe(c, str):
  76     real_cmd = p4_build_cmd(c)
  77     return write_pipe(real_cmd, str)
  78
  79 def read_pipe(c, ignore_error=False):
  80     if verbose:
  81         sys.stderr.write('Reading pipe: %s\n' % c)
  82
  83     pipe = os.popen(c, 'rb')
  84     val = pipe.read()
  85     if pipe.close() and not ignore_error:
  86         die('Command failed: %s' % c)
  87
  88     return val
  89
  90 def p4_read_pipe(c, ignore_error=False):
  91     real_cmd = p4_build_cmd(c)
  92     return read_pipe(real_cmd, ignore_error)
  93
  94 def read_pipe_lines(c):
  95     if verbose:
  96         sys.stderr.write('Reading pipe: %s\n' % c)
  97     ## todo: check return status
  98     pipe = os.popen(c, 'rb')
  99     val = pipe.readlines()
 100     if pipe.close():
 101         die('Command failed: %s' % c)
 102
 103     return val
 104
 105 def p4_read_pipe_lines(c):
 106     """Specifically invoke p4 on the command supplied. """
 107     real_cmd = p4_build_cmd(c)
 108     return read_pipe_lines(real_cmd)
 109
 110 def system(cmd):
 111     if verbose:
 112         sys.stderr.write("executing %s\n" % cmd)
 113     if os.system(cmd) != 0:
 114         die("command failed: %s" % cmd)
 115
 116 def p4_system(cmd):
 117     """Specifically invoke p4 as the system command. """
 118     real_cmd = p4_build_cmd(cmd)
 119     return system(real_cmd)
 120
 121 def isP4Exec(kind):
 122     """Determine if a Perforce 'kind' should have execute permission
 123
 124     'p4 help filetypes' gives a list of the types.  If it starts with 'x',
 125     or x follows one of a few letters.  Otherwise, if there is an 'x' after
 126     a plus sign, it is also executable"""
 127     return (re.search(r"(^[cku]?x)|\+.*x", kind) != None)
 128
 129 def setP4ExecBit(file, mode):
 130     # Reopens an already open file and changes the execute bit to match
 131     # the execute bit setting in the passed in mode.
 132
 133     p4Type = "+x"
 134
 135     if not isModeExec(mode):
 136         p4Type = getP4OpenedType(file)
 137         p4Type = re.sub('^([cku]?)x(.*)', '\\1\\2', p4Type)
 138         p4Type = re.sub('(.*?\+.*?)x(.*?)', '\\1\\2', p4Type)
 139         if p4Type[-1] == "+":
 140             p4Type = p4Type[0:-1]
 141
 142     p4_system("reopen -t %s %s" % (p4Type, file))
 143
 144 def getP4OpenedType(file):
 145     # Returns the perforce file type for the given file.
 146
 147     result = p4_read_pipe("opened %s" % file)
 148     match = re.match(".*\((.+)\)\r?$", result)
 149     if match:
 150         return match.group(1)
 151     else:
 152         die("Could not determine file type for %s (result: '%s')" % (file, result))
 153
 154 def diffTreePattern():
 155     # This is a simple generator for the diff tree regex pattern. This could be
 156     # a class variable if this and parseDiffTreeEntry were a part of a class.
 157     pattern = re.compile(':(\d+) (\d+) (\w+) (\w+) ([A-Z])(\d+)?\t(.*?)((\t(.*))|$)')
 158     while True:
 159         yield pattern
 160
 161 def parseDiffTreeEntry(entry):
 162     """Parses a single diff tree entry into its component elements.
 163
 164     See git-diff-tree(1) manpage for details about the format of the diff
 165     output. This method returns a dictionary with the following elements:
 166
 167     src_mode - The mode of the source file
 168     dst_mode - The mode of the destination file
 169     src_sha1 - The sha1 for the source file
 170     dst_sha1 - The sha1 fr the destination file
 171     status - The one letter status of the diff (i.e. 'A', 'M', 'D', etc)
 172     status_score - The score for the status (applicable for 'C' and 'R'
 173                    statuses). This is None if there is no score.
 174     src - The path for the source file.
 175     dst - The path for the destination file. This is only present for
 176           copy or renames. If it is not present, this is None.
 177
 178     If the pattern is not matched, None is returned."""
 179
 180     match = diffTreePattern().next().match(entry)
 181     if match:
 182         return {
 183             'src_mode': match.group(1),
 184             'dst_mode': match.group(2),
 185             'src_sha1': match.group(3),
 186             'dst_sha1': match.group(4),
 187             'status': match.group(5),
 188             'status_score': match.group(6),
 189             'src': match.group(7),
 190             'dst': match.group(10)
 191         }
 192     return None
 193
 194 def isModeExec(mode):
 195     # Returns True if the given git mode represents an executable file,
 196     # otherwise False.
 197     return mode[-3:] == "755"
 198
 199 def isModeExecChanged(src_mode, dst_mode):
 200     return isModeExec(src_mode) != isModeExec(dst_mode)
 201
 202 def p4CmdList(cmd, stdin=None, stdin_mode='w+b', cb=None):
 203     cmd = p4_build_cmd("-G %s" % (cmd))
 204     if verbose:
 205         sys.stderr.write("Opening pipe: %s\n" % cmd)
 206
 207     # Use a temporary file to avoid deadlocks without
 208     # subprocess.communicate(), which would put another copy
 209     # of stdout into memory.
 210     stdin_file = None
 211     if stdin is not None:
 212         stdin_file = tempfile.TemporaryFile(prefix='p4-stdin', mode=stdin_mode)
 213         stdin_file.write(stdin)
 214         stdin_file.flush()
 215         stdin_file.seek(0)
 216
 217     p4 = subprocess.Popen(cmd, shell=True,
 218                           stdin=stdin_file,
 219                           stdout=subprocess.PIPE)
 220
 221     result = []
 222     try:
 223         while True:
 224             entry = marshal.load(p4.stdout)
 225             if cb is not None:
 226                 cb(entry)
 227             else:
 228                 result.append(entry)
 229     except EOFError:
 230         pass
 231     exitCode = p4.wait()
 232     if exitCode != 0:
 233         entry = {}
 234         entry["p4ExitCode"] = exitCode
 235         result.append(entry)
 236
 237     return result
 238
 239 def p4Cmd(cmd):
 240     list = p4CmdList(cmd)
 241     result = {}
 242     for entry in list:
 243         result.update(entry)
 244     return result;
 245
 246 def p4Where(depotPath):
 247     if not depotPath.endswith("/"):
 248         depotPath += "/"
 249     depotPath = depotPath + "..."
 250     outputList = p4CmdList("where %s" % depotPath)
 251     output = None
 252     for entry in outputList:
 253         if "depotFile" in entry:
 254             if entry["depotFile"] == depotPath:
 255                 output = entry
 256                 break
 257         elif "data" in entry:
 258             data = entry.get("data")
 259             space = data.find(" ")
 260             if data[:space] == depotPath:
 261                 output = entry
 262                 break
 263     if output == None:
 264         return ""
 265     if output["code"] == "error":
 266         return ""
 267     clientPath = ""
 268     if "path" in output:
 269         clientPath = output.get("path")
 270     elif "data" in output:
 271         data = output.get("data")
 272         lastSpace = data.rfind(" ")
 273         clientPath = data[lastSpace + 1:]
 274
 275     if clientPath.endswith("..."):
 276         clientPath = clientPath[:-3]
 277     return clientPath
 278
 279 def currentGitBranch():
 280     return read_pipe("git name-rev HEAD").split(" ")[1].strip()
 281
 282 def isValidGitDir(path):
 283     if (os.path.exists(path + "/HEAD")
 284         and os.path.exists(path + "/refs") and os.path.exists(path + "/objects")):
 285         return True;
 286     return False
 287
 288 def parseRevision(ref):
 289     return read_pipe("git rev-parse %s" % ref).strip()
 290
 291 def extractLogMessageFromGitCommit(commit):
 292     logMessage = ""
 293
 294     ## fixme: title is first line of commit, not 1st paragraph.
 295     foundTitle = False
 296     for log in read_pipe_lines("git cat-file commit %s" % commit):
 297        if not foundTitle:
 298            if len(log) == 1:
 299                foundTitle = True
 300            continue
 301
 302        logMessage += log
 303     return logMessage
 304
 305 def extractSettingsGitLog(log):
 306     values = {}
 307     for line in log.split("\n"):
 308         line = line.strip()
 309         m = re.search (r"^ *\[git-p4: (.*)\]$", line)
 310         if not m:
 311             continue
 312
 313         assignments = m.group(1).split (':')
 314         for a in assignments:
 315             vals = a.split ('=')
 316             key = vals[0].strip()
 317             val = ('='.join (vals[1:])).strip()
 318             if val.endswith ('\"') and val.startswith('"'):
 319                 val = val[1:-1]
 320
 321             values[key] = val
 322
 323     paths = values.get("depot-paths")
 324     if not paths:
 325         paths = values.get("depot-path")
 326     if paths:
 327         values['depot-paths'] = paths.split(',')
 328     return values
 329
 330 def gitBranchExists(branch):
 331     proc = subprocess.Popen(["git", "rev-parse", branch],
 332                             stderr=subprocess.PIPE, stdout=subprocess.PIPE);
 333     return proc.wait() == 0;
 334
 335 _gitConfig = {}
 336 def gitConfig(key):
 337     if not _gitConfig.has_key(key):
 338         _gitConfig[key] = read_pipe("git config %s" % key, ignore_error=True).strip()
 339     return _gitConfig[key]
 340
 341 def p4BranchesInGit(branchesAreInRemotes = True):
 342     branches = {}
 343
 344     cmdline = "git rev-parse --symbolic "
 345     if branchesAreInRemotes:
 346         cmdline += " --remotes"
 347     else:
 348         cmdline += " --branches"
 349
 350     for line in read_pipe_lines(cmdline):
 351         line = line.strip()
 352
 353         ## only import to p4/
 354         if not line.startswith('p4/') or line == "p4/HEAD":
 355             continue
 356         branch = line
 357
 358         # strip off p4
 359         branch = re.sub ("^p4/", "", line)
 360
 361         branches[branch] = parseRevision(line)
 362     return branches
 363
 364 def findUpstreamBranchPoint(head = "HEAD"):
 365     branches = p4BranchesInGit()
 366     # map from depot-path to branch name
 367     branchByDepotPath = {}
 368     for branch in branches.keys():
 369         tip = branches[branch]
 370         log = extractLogMessageFromGitCommit(tip)
 371         settings = extractSettingsGitLog(log)
 372         if settings.has_key("depot-paths"):
 373             paths = ",".join(settings["depot-paths"])
 374             branchByDepotPath[paths] = "remotes/p4/" + branch
 375
 376     settings = None
 377     parent = 0
 378     while parent < 65535:
 379         commit = head + "~%s" % parent
 380         log = extractLogMessageFromGitCommit(commit)
 381         settings = extractSettingsGitLog(log)
 382         if settings.has_key("depot-paths"):
 383             paths = ",".join(settings["depot-paths"])
 384             if branchByDepotPath.has_key(paths):
 385                 return [branchByDepotPath[paths], settings]
 386
 387         parent = parent + 1
 388
 389     return ["", settings]
 390
 391 def createOrUpdateBranchesFromOrigin(localRefPrefix = "refs/remotes/p4/", silent=True):
 392     if not silent:
 393         print ("Creating/updating branch(es) in %s based on origin branch(es)"
 394                % localRefPrefix)
 395
 396     originPrefix = "origin/p4/"
 397
 398     for line in read_pipe_lines("git rev-parse --symbolic --remotes"):
 399         line = line.strip()
 400         if (not line.startswith(originPrefix)) or line.endswith("HEAD"):
 401             continue
 402
 403         headName = line[len(originPrefix):]
 404         remoteHead = localRefPrefix + headName
 405         originHead = line
 406
 407         original = extractSettingsGitLog(extractLogMessageFromGitCommit(originHead))
 408         if (not original.has_key('depot-paths')
 409             or not original.has_key('change')):
 410             continue
 411
 412         update = False
 413         if not gitBranchExists(remoteHead):
 414             if verbose:
 415                 print "creating %s" % remoteHead
 416             update = True
 417         else:
 418             settings = extractSettingsGitLog(extractLogMessageFromGitCommit(remoteHead))
 419             if settings.has_key('change') > 0:
 420                 if settings['depot-paths'] == original['depot-paths']:
 421                     originP4Change = int(original['change'])
 422                     p4Change = int(settings['change'])
 423                     if originP4Change > p4Change:
 424                         print ("%s (%s) is newer than %s (%s). "
 425                                "Updating p4 branch from origin."
 426                                % (originHead, originP4Change,
 427                                   remoteHead, p4Change))
 428                         update = True
 429                 else:
 430                     print ("Ignoring: %s was imported from %s while "
 431                            "%s was imported from %s"
 432                            % (originHead, ','.join(original['depot-paths']),
 433                               remoteHead, ','.join(settings['depot-paths'])))
 434
 435         if update:
 436             system("git update-ref %s %s" % (remoteHead, originHead))
 437
 438 def originP4BranchesExist():
 439         return gitBranchExists("origin") or gitBranchExists("origin/p4") or gitBranchExists("origin/p4/master")
 440
 441 def p4ChangesForPaths(depotPaths, changeRange):
 442     assert depotPaths
 443     output = p4_read_pipe_lines("changes " + ' '.join (["%s...%s" % (p, changeRange)
 444                                                         for p in depotPaths]))
 445
 446     changes = {}
 447     for line in output:
 448         changeNum = int(line.split(" ")[1])
 449         changes[changeNum] = True
 450
 451     changelist = changes.keys()
 452     changelist.sort()
 453     return changelist
 454
 455 class Command:
 456     def __init__(self):
 457         self.usage = "usage: %prog [options]"
 458         self.needsGit = True
 459
 460 class P4Debug(Command):
 461     def __init__(self):
 462         Command.__init__(self)
 463         self.options = [
 464             optparse.make_option("--verbose", dest="verbose", action="store_true",
 465                                  default=False),
 466             ]
 467         self.description = "A tool to debug the output of p4 -G."
 468         self.needsGit = False
 469         self.verbose = False
 470
 471     def run(self, args):
 472         j = 0
 473         for output in p4CmdList(" ".join(args)):
 474             print 'Element: %d' % j
 475             j += 1
 476             print output
 477         return True
 478
 479 class P4RollBack(Command):
 480     def __init__(self):
 481         Command.__init__(self)
 482         self.options = [
 483             optparse.make_option("--verbose", dest="verbose", action="store_true"),
 484             optparse.make_option("--local", dest="rollbackLocalBranches", action="store_true")
 485         ]
 486         self.description = "A tool to debug the multi-branch import. Don't use :)"
 487         self.verbose = False
 488         self.rollbackLocalBranches = False
 489
 490     def run(self, args):
 491         if len(args) != 1:
 492             return False
 493         maxChange = int(args[0])
 494
 495         if "p4ExitCode" in p4Cmd("changes -m 1"):
 496             die("Problems executing p4");
 497
 498         if self.rollbackLocalBranches:
 499             refPrefix = "refs/heads/"
 500             lines = read_pipe_lines("git rev-parse --symbolic --branches")
 501         else:
 502             refPrefix = "refs/remotes/"
 503             lines = read_pipe_lines("git rev-parse --symbolic --remotes")
 504
 505         for line in lines:
 506             if self.rollbackLocalBranches or (line.startswith("p4/") and line != "p4/HEAD\n"):
 507                 line = line.strip()
 508                 ref = refPrefix + line
 509                 log = extractLogMessageFromGitCommit(ref)
 510                 settings = extractSettingsGitLog(log)
 511
 512                 depotPaths = settings['depot-paths']
 513                 change = settings['change']
 514
 515                 changed = False
 516
 517                 if len(p4Cmd("changes -m 1 "  + ' '.join (['%s...@%s' % (p, maxChange)
 518                                                            for p in depotPaths]))) == 0:
 519                     print "Branch %s did not exist at change %s, deleting." % (ref, maxChange)
 520                     system("git update-ref -d %s `git rev-parse %s`" % (ref, ref))
 521                     continue
 522
 523                 while change and int(change) > maxChange:
 524                     changed = True
 525                     if self.verbose:
 526                         print "%s is at %s ; rewinding towards %s" % (ref, change, maxChange)
 527                     system("git update-ref %s \"%s^\"" % (ref, ref))
 528                     log = extractLogMessageFromGitCommit(ref)
 529                     settings =  extractSettingsGitLog(log)
 530
 531
 532                     depotPaths = settings['depot-paths']
 533                     change = settings['change']
 534
 535                 if changed:
 536                     print "%s rewound to %s" % (ref, change)
 537
 538         return True
 539
 540 class P4Submit(Command):
 541     def __init__(self):
 542         Command.__init__(self)
 543         self.options = [
 544                 optparse.make_option("--verbose", dest="verbose", action="store_true"),
 545                 optparse.make_option("--origin", dest="origin"),
 546                 optparse.make_option("-M", dest="detectRename", action="store_true"),
 547         ]
 548         self.description = "Submit changes from git to the perforce depot."
 549         self.usage += " [name of git branch to submit into perforce depot]"
 550         self.interactive = True
 551         self.origin = ""
 552         self.detectRename = False
 553         self.verbose = False
 554         self.isWindows = (platform.system() == "Windows")
 555
 556     def check(self):
 557         if len(p4CmdList("opened ...")) > 0:
 558             die("You have files opened with perforce! Close them before starting the sync.")
 559
 560     # replaces everything between 'Description:' and the next P4 submit template field with the
 561     # commit message
 562     def prepareLogMessage(self, template, message):
 563         result = ""
 564
 565         inDescriptionSection = False
 566
 567         for line in template.split("\n"):
 568             if line.startswith("#"):
 569                 result += line + "\n"
 570                 continue
 571
 572             if inDescriptionSection:
 573                 if line.startswith("Files:"):
 574                     inDescriptionSection = False
 575                 else:
 576                     continue
 577             else:
 578                 if line.startswith("Description:"):
 579                     inDescriptionSection = True
 580                     line += "\n"
 581                     for messageLine in message.split("\n"):
 582                         line += "\t" + messageLine + "\n"
 583
 584             result += line + "\n"
 585
 586         return result
 587
 588     def prepareSubmitTemplate(self):
 589         # remove lines in the Files section that show changes to files outside the depot path we're committing into
 590         template = ""
 591         inFilesSection = False
 592         for line in p4_read_pipe_lines("change -o"):
 593             if line.endswith("\r\n"):
 594                 line = line[:-2] + "\n"
 595             if inFilesSection:
 596                 if line.startswith("\t"):
 597                     # path starts and ends with a tab
 598                     path = line[1:]
 599                     lastTab = path.rfind("\t")
 600                     if lastTab != -1:
 601                         path = path[:lastTab]
 602                         if not path.startswith(self.depotPath):
 603                             continue
 604                 else:
 605                     inFilesSection = False
 606             else:
 607                 if line.startswith("Files:"):
 608                     inFilesSection = True
 609
 610             template += line
 611
 612         return template
 613
 614     def applyCommit(self, id):
 615         print "Applying %s" % (read_pipe("git log --max-count=1 --pretty=oneline %s" % id))
 616         diffOpts = ("", "-M")[self.detectRename]
 617         diff = read_pipe_lines("git diff-tree -r %s \"%s^\" \"%s\"" % (diffOpts, id, id))
 618         filesToAdd = set()
 619         filesToDelete = set()
 620         editedFiles = set()
 621         filesToChangeExecBit = {}
 622         for line in diff:
 623             diff = parseDiffTreeEntry(line)
 624             modifier = diff['status']
 625             path = diff['src']
 626             if modifier == "M":
 627                 p4_system("edit \"%s\"" % path)
 628                 if isModeExecChanged(diff['src_mode'], diff['dst_mode']):
 629                     filesToChangeExecBit[path] = diff['dst_mode']
 630                 editedFiles.add(path)
 631             elif modifier == "A":
 632                 filesToAdd.add(path)
 633                 filesToChangeExecBit[path] = diff['dst_mode']
 634                 if path in filesToDelete:
 635                     filesToDelete.remove(path)
 636             elif modifier == "D":
 637                 filesToDelete.add(path)
 638                 if path in filesToAdd:
 639                     filesToAdd.remove(path)
 640             elif modifier == "R":
 641                 src, dest = diff['src'], diff['dst']
 642                 p4_system("integrate -Dt \"%s\" \"%s\"" % (src, dest))
 643                 p4_system("edit \"%s\"" % (dest))
 644                 if isModeExecChanged(diff['src_mode'], diff['dst_mode']):
 645                     filesToChangeExecBit[dest] = diff['dst_mode']
 646                 os.unlink(dest)
 647                 editedFiles.add(dest)
 648                 filesToDelete.add(src)
 649             else:
 650                 die("unknown modifier %s for %s" % (modifier, path))
 651
 652         diffcmd = "git format-patch -k --stdout \"%s^\"..\"%s\"" % (id, id)
 653         patchcmd = diffcmd + " | git apply "
 654         tryPatchCmd = patchcmd + "--check -"
 655         applyPatchCmd = patchcmd + "--check --apply -"
 656
 657         if os.system(tryPatchCmd) != 0:
 658             print "Unfortunately applying the change failed!"
 659             print "What do you want to do?"
 660             response = "x"
 661             while response != "s" and response != "a" and response != "w":
 662                 response = raw_input("[s]kip this patch / [a]pply the patch forcibly "
 663                                      "and with .rej files / [w]rite the patch to a file (patch.txt) ")
 664             if response == "s":
 665                 print "Skipping! Good luck with the next patches..."
 666                 for f in editedFiles:
 667                     p4_system("revert \"%s\"" % f);
 668                 for f in filesToAdd:
 669                     system("rm %s" %f)
 670                 return
 671             elif response == "a":
 672                 os.system(applyPatchCmd)
 673                 if len(filesToAdd) > 0:
 674                     print "You may also want to call p4 add on the following files:"
 675                     print " ".join(filesToAdd)
 676                 if len(filesToDelete):
 677                     print "The following files should be scheduled for deletion with p4 delete:"
 678                     print " ".join(filesToDelete)
 679                 die("Please resolve and submit the conflict manually and "
 680                     + "continue afterwards with git-p4 submit --continue")
 681             elif response == "w":
 682                 system(diffcmd + " > patch.txt")
 683                 print "Patch saved to patch.txt in %s !" % self.clientPath
 684                 die("Please resolve and submit the conflict manually and "
 685                     "continue afterwards with git-p4 submit --continue")
 686
 687         system(applyPatchCmd)
 688
 689         for f in filesToAdd:
 690             p4_system("add \"%s\"" % f)
 691         for f in filesToDelete:
 692             p4_system("revert \"%s\"" % f)
 693             p4_system("delete \"%s\"" % f)
 694
 695         # Set/clear executable bits
 696         for f in filesToChangeExecBit.keys():
 697             mode = filesToChangeExecBit[f]
 698             setP4ExecBit(f, mode)
 699
 700         logMessage = extractLogMessageFromGitCommit(id)
 701         logMessage = logMessage.strip()
 702
 703         template = self.prepareSubmitTemplate()
 704
 705         if self.interactive:
 706             submitTemplate = self.prepareLogMessage(template, logMessage)
 707             if os.environ.has_key("P4DIFF"):
 708                 del(os.environ["P4DIFF"])
 709             diff = p4_read_pipe("diff -du ...")
 710
 711             newdiff = ""
 712             for newFile in filesToAdd:
 713                 newdiff += "==== new file ====\n"
 714                 newdiff += "--- /dev/null\n"
 715                 newdiff += "+++ %s\n" % newFile
 716                 f = open(newFile, "r")
 717                 for line in f.readlines():
 718                     newdiff += "+" + line
 719                 f.close()
 720
 721             separatorLine = "######## everything below this line is just the diff #######\n"
 722
 723             [handle, fileName] = tempfile.mkstemp()
 724             tmpFile = os.fdopen(handle, "w+")
 725             if self.isWindows:
 726                 submitTemplate = submitTemplate.replace("\n", "\r\n")
 727                 separatorLine = separatorLine.replace("\n", "\r\n")
 728                 newdiff = newdiff.replace("\n", "\r\n")
 729             tmpFile.write(submitTemplate + separatorLine + diff + newdiff)
 730             tmpFile.close()
 731             mtime = os.stat(fileName).st_mtime
 732             if os.environ.has_key("P4EDITOR"):
 733                 editor = os.environ.get("P4EDITOR")
 734             else:
 735                 editor = read_pipe("git var GIT_EDITOR")
 736             system(editor + " " + fileName)
 737
 738             response = "y"
 739             if os.stat(fileName).st_mtime <= mtime:
 740                 response = "x"
 741                 while response != "y" and response != "n":
 742                     response = raw_input("Submit template unchanged. Submit anyway? [y]es, [n]o (skip this patch) ")
 743
 744             if response == "y":
 745                 tmpFile = open(fileName, "rb")
 746                 message = tmpFile.read()
 747                 tmpFile.close()
 748                 submitTemplate = message[:message.index(separatorLine)]
 749                 if self.isWindows:
 750                     submitTemplate = submitTemplate.replace("\r\n", "\n")
 751                 p4_write_pipe("submit -i", submitTemplate)
 752             else:
 753                 for f in editedFiles:
 754                     p4_system("revert \"%s\"" % f);
 755                 for f in filesToAdd:
 756                     p4_system("revert \"%s\"" % f);
 757                     system("rm %s" %f)
 758
 759             os.remove(fileName)
 760         else:
 761             fileName = "submit.txt"
 762             file = open(fileName, "w+")
 763             file.write(self.prepareLogMessage(template, logMessage))
 764             file.close()
 765             print ("Perforce submit template written as %s. "
 766                    + "Please review/edit and then use p4 submit -i < %s to submit directly!"
 767                    % (fileName, fileName))
 768
 769     def run(self, args):
 770         if len(args) == 0:
 771             self.master = currentGitBranch()
 772             if len(self.master) == 0 or not gitBranchExists("refs/heads/%s" % self.master):
 773                 die("Detecting current git branch failed!")
 774         elif len(args) == 1:
 775             self.master = args[0]
 776         else:
 777             return False
 778
 779         allowSubmit = gitConfig("git-p4.allowSubmit")
 780         if len(allowSubmit) > 0 and not self.master in allowSubmit.split(","):
 781             die("%s is not in git-p4.allowSubmit" % self.master)
 782
 783         [upstream, settings] = findUpstreamBranchPoint()
 784         self.depotPath = settings['depot-paths'][0]
 785         if len(self.origin) == 0:
 786             self.origin = upstream
 787
 788         if self.verbose:
 789             print "Origin branch is " + self.origin
 790
 791         if len(self.depotPath) == 0:
 792             print "Internal error: cannot locate perforce depot path from existing branches"
 793             sys.exit(128)
 794
 795         self.clientPath = p4Where(self.depotPath)
 796
 797         if len(self.clientPath) == 0:
 798             print "Error: Cannot locate perforce checkout of %s in client view" % self.depotPath
 799             sys.exit(128)
 800
 801         print "Perforce checkout for depot path %s located at %s" % (self.depotPath, self.clientPath)
 802         self.oldWorkingDirectory = os.getcwd()
 803
 804         chdir(self.clientPath)
 805         print "Syncronizing p4 checkout..."
 806         p4_system("sync ...")
 807
 808         self.check()
 809
 810         commits = []
 811         for line in read_pipe_lines("git rev-list --no-merges %s..%s" % (self.origin, self.master)):
 812             commits.append(line.strip())
 813         commits.reverse()
 814
 815         while len(commits) > 0:
 816             commit = commits[0]
 817             commits = commits[1:]
 818             self.applyCommit(commit)
 819             if not self.interactive:
 820                 break
 821
 822         if len(commits) == 0:
 823             print "All changes applied!"
 824             chdir(self.oldWorkingDirectory)
 825
 826             sync = P4Sync()
 827             sync.run([])
 828
 829             rebase = P4Rebase()
 830             rebase.rebase()
 831
 832         return True
 833
 834 class P4Sync(Command):
 835     def __init__(self):
 836         Command.__init__(self)
 837         self.options = [
 838                 optparse.make_option("--branch", dest="branch"),
 839                 optparse.make_option("--detect-branches", dest="detectBranches", action="store_true"),
 840                 optparse.make_option("--changesfile", dest="changesFile"),
 841                 optparse.make_option("--silent", dest="silent", action="store_true"),
 842                 optparse.make_option("--detect-labels", dest="detectLabels", action="store_true"),
 843                 optparse.make_option("--verbose", dest="verbose", action="store_true"),
 844                 optparse.make_option("--import-local", dest="importIntoRemotes", action="store_false",
 845                                      help="Import into refs/heads/ , not refs/remotes"),
 846                 optparse.make_option("--max-changes", dest="maxChanges"),
 847                 optparse.make_option("--keep-path", dest="keepRepoPath", action='store_true',
 848                                      help="Keep entire BRANCH/DIR/SUBDIR prefix during import"),
 849                 optparse.make_option("--use-client-spec", dest="useClientSpec", action='store_true',
 850                                      help="Only sync files that are included in the Perforce Client Spec")
 851         ]
 852         self.description = """Imports from Perforce into a git repository.\n
 853     example:
 854     //depot/my/project/ -- to import the current head
 855     //depot/my/project/@all -- to import everything
 856     //depot/my/project/@1,6 -- to import only from revision 1 to 6
 857
 858     (a ... is not needed in the path p4 specification, it's added implicitly)"""
 859
 860         self.usage += " //depot/path[@revRange]"
 861         self.silent = False
 862         self.createdBranches = set()
 863         self.committedChanges = set()
 864         self.branch = ""
 865         self.detectBranches = False
 866         self.detectLabels = False
 867         self.changesFile = ""
 868         self.syncWithOrigin = True
 869         self.verbose = False
 870         self.importIntoRemotes = True
 871         self.maxChanges = ""
 872         self.isWindows = (platform.system() == "Windows")
 873         self.keepRepoPath = False
 874         self.depotPaths = None
 875         self.p4BranchesInGit = []
 876         self.cloneExclude = []
 877         self.useClientSpec = False
 878         self.clientSpecDirs = []
 879
 880         if gitConfig("git-p4.syncFromOrigin") == "false":
 881             self.syncWithOrigin = False
 882
 883     def extractFilesFromCommit(self, commit):
 884         self.cloneExclude = [re.sub(r"\.\.\.$", "", path)
 885                              for path in self.cloneExclude]
 886         files = []
 887         fnum = 0
 888         while commit.has_key("depotFile%s" % fnum):
 889             path =  commit["depotFile%s" % fnum]
 890
 891             if [p for p in self.cloneExclude
 892                 if path.startswith (p)]:
 893                 found = False
 894             else:
 895                 found = [p for p in self.depotPaths
 896                          if path.startswith (p)]
 897             if not found:
 898                 fnum = fnum + 1
 899                 continue
 900
 901             file = {}
 902             file["path"] = path
 903             file["rev"] = commit["rev%s" % fnum]
 904             file["action"] = commit["action%s" % fnum]
 905             file["type"] = commit["type%s" % fnum]
 906             files.append(file)
 907             fnum = fnum + 1
 908         return files
 909
 910     def stripRepoPath(self, path, prefixes):
 911         if self.keepRepoPath:
 912             prefixes = [re.sub("^(//[^/]+/).*", r'\1', prefixes[0])]
 913
 914         for p in prefixes:
 915             if path.startswith(p):
 916                 path = path[len(p):]
 917
 918         return path
 919
 920     def splitFilesIntoBranches(self, commit):
 921         branches = {}
 922         fnum = 0
 923         while commit.has_key("depotFile%s" % fnum):
 924             path =  commit["depotFile%s" % fnum]
 925             found = [p for p in self.depotPaths
 926                      if path.startswith (p)]
 927             if not found:
 928                 fnum = fnum + 1
 929                 continue
 930
 931             file = {}
 932             file["path"] = path
 933             file["rev"] = commit["rev%s" % fnum]
 934             file["action"] = commit["action%s" % fnum]
 935             file["type"] = commit["type%s" % fnum]
 936             fnum = fnum + 1
 937
 938             relPath = self.stripRepoPath(path, self.depotPaths)
 939
 940             for branch in self.knownBranches.keys():
 941
 942                 # add a trailing slash so that a commit into qt/4.2foo doesn't end up in qt/4.2
 943                 if relPath.startswith(branch + "/"):
 944                     if branch not in branches:
 945                         branches[branch] = []
 946                     branches[branch].append(file)
 947                     break
 948
 949         return branches
 950
 951     # output one file from the P4 stream
 952     # - helper for streamP4Files
 953
 954     def streamOneP4File(self, file, contents):
 955         if file["type"] == "apple":
 956             print "\nfile %s is a strange apple file that forks. Ignoring" % \
 957                 file['depotFile']
 958             return
 959
 960         relPath = self.stripRepoPath(file['depotFile'], self.branchPrefixes)
 961         if verbose:
 962             sys.stderr.write("%s\n" % relPath)
 963
 964         mode = "644"
 965         if isP4Exec(file["type"]):
 966             mode = "755"
 967         elif file["type"] == "symlink":
 968             mode = "120000"
 969             # p4 print on a symlink contains "target\n", so strip it off
 970             last = contents.pop()
 971             last = last[:-1]
 972             contents.append(last)
 973
 974         if self.isWindows and file["type"].endswith("text"):
 975             mangled = []
 976             for data in contents:
 977                 data = data.replace("\r\n", "\n")
 978                 mangled.append(data)
 979             contents = mangled
 980
 981         if file['type'] in ('text+ko', 'unicode+ko', 'binary+ko'):
 982             contents = map(lambda text: re.sub(r'(?i)\$(Id|Header):[^$]*\$',r'$\1$', text), contents)
 983         elif file['type'] in ('text+k', 'ktext', 'kxtext', 'unicode+k', 'binary+k'):
 984             contents = map(lambda text: re.sub(r'\$(Id|Header|Author|Date|DateTime|Change|File|Revision):[^$\n]*\$',r'$\1$', text), contents)
 985
 986         self.gitStream.write("M %s inline %s\n" % (mode, relPath))
 987
 988         # total length...
 989         length = 0
 990         for d in contents:
 991             length = length + len(d)
 992
 993         self.gitStream.write("data %d\n" % length)
 994         for d in contents:
 995             self.gitStream.write(d)
 996         self.gitStream.write("\n")
 997
 998     def streamOneP4Deletion(self, file):
 999         relPath = self.stripRepoPath(file['path'], self.branchPrefixes)
1000         if verbose:
1001             sys.stderr.write("delete %s\n" % relPath)
1002         self.gitStream.write("D %s\n" % relPath)
1003
1004     # handle another chunk of streaming data
1005     def streamP4FilesCb(self, marshalled):
1006
1007         if marshalled.has_key('depotFile') and self.stream_have_file_info:
1008             # start of a new file - output the old one first
1009             self.streamOneP4File(self.stream_file, self.stream_contents)
1010             self.stream_file = {}
1011             self.stream_contents = []
1012             self.stream_have_file_info = False
1013
1014         # pick up the new file information... for the
1015         # 'data' field we need to append to our array
1016         for k in marshalled.keys():
1017             if k == 'data':
1018                 self.stream_contents.append(marshalled['data'])
1019             else:
1020                 self.stream_file[k] = marshalled[k]
1021
1022         self.stream_have_file_info = True
1023
1024     # Stream directly from "p4 files" into "git fast-import"
1025     def streamP4Files(self, files):
1026         filesForCommit = []
1027         filesToRead = []
1028         filesToDelete = []
1029
1030         for f in files:
1031             includeFile = True
1032             for val in self.clientSpecDirs:
1033                 if f['path'].startswith(val[0]):
1034                     if val[1] <= 0:
1035                         includeFile = False
1036                     break
1037
1038             if includeFile:
1039                 filesForCommit.append(f)
1040                 if f['action'] not in ('delete', 'purge'):
1041                     filesToRead.append(f)
1042                 else:
1043                     filesToDelete.append(f)
1044
1045         # deleted files...
1046         for f in filesToDelete:
1047             self.streamOneP4Deletion(f)
1048
1049         if len(filesToRead) > 0:
1050             self.stream_file = {}
1051             self.stream_contents = []
1052             self.stream_have_file_info = False
1053
1054             # curry self argument
1055             def streamP4FilesCbSelf(entry):
1056                 self.streamP4FilesCb(entry)
1057
1058             p4CmdList("-x - print",
1059                 '\n'.join(['%s#%s' % (f['path'], f['rev'])
1060                                                   for f in filesToRead]),
1061                 cb=streamP4FilesCbSelf)
1062
1063             # do the last chunk
1064             if self.stream_file.has_key('depotFile'):
1065                 self.streamOneP4File(self.stream_file, self.stream_contents)
1066
1067     def commit(self, details, files, branch, branchPrefixes, parent = ""):
1068         epoch = details["time"]
1069         author = details["user"]
1070         self.branchPrefixes = branchPrefixes
1071
1072         if self.verbose:
1073             print "commit into %s" % branch
1074
1075         # start with reading files; if that fails, we should not
1076         # create a commit.
1077         new_files = []
1078         for f in files:
1079             if [p for p in branchPrefixes if f['path'].startswith(p)]:
1080                 new_files.append (f)
1081             else:
1082                 sys.stderr.write("Ignoring file outside of prefix: %s\n" % path)
1083
1084         self.gitStream.write("commit %s\n" % branch)
1085 #        gitStream.write("mark :%s\n" % details["change"])
1086         self.committedChanges.add(int(details["change"]))
1087         committer = ""
1088         if author not in self.users:
1089             self.getUserMapFromPerforceServer()
1090         if author in self.users:
1091             committer = "%s %s %s" % (self.users[author], epoch, self.tz)
1092         else:
1093             committer = "%s <a@b> %s %s" % (author, epoch, self.tz)
1094
1095         self.gitStream.write("committer %s\n" % committer)
1096
1097         self.gitStream.write("data <<EOT\n")
1098         self.gitStream.write(details["desc"])
1099         self.gitStream.write("\n[git-p4: depot-paths = \"%s\": change = %s"
1100                              % (','.join (branchPrefixes), details["change"]))
1101         if len(details['options']) > 0:
1102             self.gitStream.write(": options = %s" % details['options'])
1103         self.gitStream.write("]\nEOT\n\n")
1104
1105         if len(parent) > 0:
1106             if self.verbose:
1107                 print "parent %s" % parent
1108             self.gitStream.write("from %s\n" % parent)
1109
1110         self.streamP4Files(new_files)
1111         self.gitStream.write("\n")
1112
1113         change = int(details["change"])
1114
1115         if self.labels.has_key(change):
1116             label = self.labels[change]
1117             labelDetails = label[0]
1118             labelRevisions = label[1]
1119             if self.verbose:
1120                 print "Change %s is labelled %s" % (change, labelDetails)
1121
1122             files = p4CmdList("files " + ' '.join (["%s...@%s" % (p, change)
1123                                                     for p in branchPrefixes]))
1124
1125             if len(files) == len(labelRevisions):
1126
1127                 cleanedFiles = {}
1128                 for info in files:
1129                     if info["action"] in ("delete", "purge"):
1130                         continue
1131                     cleanedFiles[info["depotFile"]] = info["rev"]
1132
1133                 if cleanedFiles == labelRevisions:
1134                     self.gitStream.write("tag tag_%s\n" % labelDetails["label"])
1135                     self.gitStream.write("from %s\n" % branch)
1136
1137                     owner = labelDetails["Owner"]
1138                     tagger = ""
1139                     if author in self.users:
1140                         tagger = "%s %s %s" % (self.users[owner], epoch, self.tz)
1141                     else:
1142                         tagger = "%s <a@b> %s %s" % (owner, epoch, self.tz)
1143                     self.gitStream.write("tagger %s\n" % tagger)
1144                     self.gitStream.write("data <<EOT\n")
1145                     self.gitStream.write(labelDetails["Description"])
1146                     self.gitStream.write("EOT\n\n")
1147
1148                 else:
1149                     if not self.silent:
1150                         print ("Tag %s does not match with change %s: files do not match."
1151                                % (labelDetails["label"], change))
1152
1153             else:
1154                 if not self.silent:
1155                     print ("Tag %s does not match with change %s: file count is different."
1156                            % (labelDetails["label"], change))
1157
1158     def getUserCacheFilename(self):
1159         home = os.environ.get("HOME", os.environ.get("USERPROFILE"))
1160         return home + "/.gitp4-usercache.txt"
1161
1162     def getUserMapFromPerforceServer(self):
1163         if self.userMapFromPerforceServer:
1164             return
1165         self.users = {}
1166
1167         for output in p4CmdList("users"):
1168             if not output.has_key("User"):
1169                 continue
1170             self.users[output["User"]] = output["FullName"] + " <" + output["Email"] + ">"
1171
1172
1173         s = ''
1174         for (key, val) in self.users.items():
1175             s += "%s\t%s\n" % (key.expandtabs(1), val.expandtabs(1))
1176
1177         open(self.getUserCacheFilename(), "wb").write(s)
1178         self.userMapFromPerforceServer = True
1179
1180     def loadUserMapFromCache(self):
1181         self.users = {}
1182         self.userMapFromPerforceServer = False
1183         try:
1184             cache = open(self.getUserCacheFilename(), "rb")
1185             lines = cache.readlines()
1186             cache.close()
1187             for line in lines:
1188                 entry = line.strip().split("\t")
1189                 self.users[entry[0]] = entry[1]
1190         except IOError:
1191             self.getUserMapFromPerforceServer()
1192
1193     def getLabels(self):
1194         self.labels = {}
1195
1196         l = p4CmdList("labels %s..." % ' '.join (self.depotPaths))
1197         if len(l) > 0 and not self.silent:
1198             print "Finding files belonging to labels in %s" % `self.depotPaths`
1199
1200         for output in l:
1201             label = output["label"]
1202             revisions = {}
1203             newestChange = 0
1204             if self.verbose:
1205                 print "Querying files for label %s" % label
1206             for file in p4CmdList("files "
1207                                   +  ' '.join (["%s...@%s" % (p, label)
1208                                                 for p in self.depotPaths])):
1209                 revisions[file["depotFile"]] = file["rev"]
1210                 change = int(file["change"])
1211                 if change > newestChange:
1212                     newestChange = change
1213
1214             self.labels[newestChange] = [output, revisions]
1215
1216         if self.verbose:
1217             print "Label changes: %s" % self.labels.keys()
1218
1219     def guessProjectName(self):
1220         for p in self.depotPaths:
1221             if p.endswith("/"):
1222                 p = p[:-1]
1223             p = p[p.strip().rfind("/") + 1:]
1224             if not p.endswith("/"):
1225                p += "/"
1226             return p
1227
1228     def getBranchMapping(self):
1229         lostAndFoundBranches = set()
1230
1231         for info in p4CmdList("branches"):
1232             details = p4Cmd("branch -o %s" % info["branch"])
1233             viewIdx = 0
1234             while details.has_key("View%s" % viewIdx):
1235                 paths = details["View%s" % viewIdx].split(" ")
1236                 viewIdx = viewIdx + 1
1237                 # require standard //depot/foo/... //depot/bar/... mapping
1238                 if len(paths) != 2 or not paths[0].endswith("/...") or not paths[1].endswith("/..."):
1239                     continue
1240                 source = paths[0]
1241                 destination = paths[1]
1242                 ## HACK
1243                 if source.startswith(self.depotPaths[0]) and destination.startswith(self.depotPaths[0]):
1244                     source = source[len(self.depotPaths[0]):-4]
1245                     destination = destination[len(self.depotPaths[0]):-4]
1246
1247                     if destination in self.knownBranches:
1248                         if not self.silent:
1249                             print "p4 branch %s defines a mapping from %s to %s" % (info["branch"], source, destination)
1250                             print "but there exists another mapping from %s to %s already!" % (self.knownBranches[destination], destination)
1251                         continue
1252
1253                     self.knownBranches[destination] = source
1254
1255                     lostAndFoundBranches.discard(destination)
1256
1257                     if source not in self.knownBranches:
1258                         lostAndFoundBranches.add(source)
1259
1260
1261         for branch in lostAndFoundBranches:
1262             self.knownBranches[branch] = branch
1263
1264     def getBranchMappingFromGitBranches(self):
1265         branches = p4BranchesInGit(self.importIntoRemotes)
1266         for branch in branches.keys():
1267             if branch == "master":
1268                 branch = "main"
1269             else:
1270                 branch = branch[len(self.projectName):]
1271             self.knownBranches[branch] = branch
1272
1273     def listExistingP4GitBranches(self):
1274         # branches holds mapping from name to commit
1275         branches = p4BranchesInGit(self.importIntoRemotes)
1276         self.p4BranchesInGit = branches.keys()
1277         for branch in branches.keys():
1278             self.initialParents[self.refPrefix + branch] = branches[branch]
1279
1280     def updateOptionDict(self, d):
1281         option_keys = {}
1282         if self.keepRepoPath:
1283             option_keys['keepRepoPath'] = 1
1284
1285         d["options"] = ' '.join(sorted(option_keys.keys()))
1286
1287     def readOptions(self, d):
1288         self.keepRepoPath = (d.has_key('options')
1289                              and ('keepRepoPath' in d['options']))
1290
1291     def gitRefForBranch(self, branch):
1292         if branch == "main":
1293             return self.refPrefix + "master"
1294
1295         if len(branch) <= 0:
1296             return branch
1297
1298         return self.refPrefix + self.projectName + branch
1299
1300     def gitCommitByP4Change(self, ref, change):
1301         if self.verbose:
1302             print "looking in ref " + ref + " for change %s using bisect..." % change
1303
1304         earliestCommit = ""
1305         latestCommit = parseRevision(ref)
1306
1307         while True:
1308             if self.verbose:
1309                 print "trying: earliest %s latest %s" % (earliestCommit, latestCommit)
1310             next = read_pipe("git rev-list --bisect %s %s" % (latestCommit, earliestCommit)).strip()
1311             if len(next) == 0:
1312                 if self.verbose:
1313                     print "argh"
1314                 return ""
1315             log = extractLogMessageFromGitCommit(next)
1316             settings = extractSettingsGitLog(log)
1317             currentChange = int(settings['change'])
1318             if self.verbose:
1319                 print "current change %s" % currentChange
1320
1321             if currentChange == change:
1322                 if self.verbose:
1323                     print "found %s" % next
1324                 return next
1325
1326             if currentChange < change:
1327                 earliestCommit = "^%s" % next
1328             else:
1329                 latestCommit = "%s" % next
1330
1331         return ""
1332
1333     def importNewBranch(self, branch, maxChange):
1334         # make fast-import flush all changes to disk and update the refs using the checkpoint
1335         # command so that we can try to find the branch parent in the git history
1336         self.gitStream.write("checkpoint\n\n");
1337         self.gitStream.flush();
1338         branchPrefix = self.depotPaths[0] + branch + "/"
1339         range = "@1,%s" % maxChange
1340         #print "prefix" + branchPrefix
1341         changes = p4ChangesForPaths([branchPrefix], range)
1342         if len(changes) <= 0:
1343             return False
1344         firstChange = changes[0]
1345         #print "first change in branch: %s" % firstChange
1346         sourceBranch = self.knownBranches[branch]
1347         sourceDepotPath = self.depotPaths[0] + sourceBranch
1348         sourceRef = self.gitRefForBranch(sourceBranch)
1349         #print "source " + sourceBranch
1350
1351         branchParentChange = int(p4Cmd("changes -m 1 %s...@1,%s" % (sourceDepotPath, firstChange))["change"])
1352         #print "branch parent: %s" % branchParentChange
1353         gitParent = self.gitCommitByP4Change(sourceRef, branchParentChange)
1354         if len(gitParent) > 0:
1355             self.initialParents[self.gitRefForBranch(branch)] = gitParent
1356             #print "parent git commit: %s" % gitParent
1357
1358         self.importChanges(changes)
1359         return True
1360
1361     def importChanges(self, changes):
1362         cnt = 1
1363         for change in changes:
1364             description = p4Cmd("describe %s" % change)
1365             self.updateOptionDict(description)
1366
1367             if not self.silent:
1368                 sys.stdout.write("\rImporting revision %s (%s%%)" % (change, cnt * 100 / len(changes)))
1369                 sys.stdout.flush()
1370             cnt = cnt + 1
1371
1372             try:
1373                 if self.detectBranches:
1374                     branches = self.splitFilesIntoBranches(description)
1375                     for branch in branches.keys():
1376                         ## HACK  --hwn
1377                         branchPrefix = self.depotPaths[0] + branch + "/"
1378
1379                         parent = ""
1380
1381                         filesForCommit = branches[branch]
1382
1383                         if self.verbose:
1384                             print "branch is %s" % branch
1385
1386                         self.updatedBranches.add(branch)
1387
1388                         if branch not in self.createdBranches:
1389                             self.createdBranches.add(branch)
1390                             parent = self.knownBranches[branch]
1391                             if parent == branch:
1392                                 parent = ""
1393                             else:
1394                                 fullBranch = self.projectName + branch
1395                                 if fullBranch not in self.p4BranchesInGit:
1396                                     if not self.silent:
1397                                         print("\n    Importing new branch %s" % fullBranch);
1398                                     if self.importNewBranch(branch, change - 1):
1399                                         parent = ""
1400                                         self.p4BranchesInGit.append(fullBranch)
1401                                     if not self.silent:
1402                                         print("\n    Resuming with change %s" % change);
1403
1404                                 if self.verbose:
1405                                     print "parent determined through known branches: %s" % parent
1406
1407                         branch = self.gitRefForBranch(branch)
1408                         parent = self.gitRefForBranch(parent)
1409
1410                         if self.verbose:
1411                             print "looking for initial parent for %s; current parent is %s" % (branch, parent)
1412
1413                         if len(parent) == 0 and branch in self.initialParents:
1414                             parent = self.initialParents[branch]
1415                             del self.initialParents[branch]
1416
1417                         self.commit(description, filesForCommit, branch, [branchPrefix], parent)
1418                 else:
1419                     files = self.extractFilesFromCommit(description)
1420                     self.commit(description, files, self.branch, self.depotPaths,
1421                                 self.initialParent)
1422                     self.initialParent = ""
1423             except IOError:
1424                 print self.gitError.read()
1425                 sys.exit(1)
1426
1427     def importHeadRevision(self, revision):
1428         print "Doing initial import of %s from revision %s into %s" % (' '.join(self.depotPaths), revision, self.branch)
1429
1430         details = { "user" : "git perforce import user", "time" : int(time.time()) }
1431         details["desc"] = ("Initial import of %s from the state at revision %s"
1432                            % (' '.join(self.depotPaths), revision))
1433         details["change"] = revision
1434         newestRevision = 0
1435
1436         fileCnt = 0
1437         for info in p4CmdList("files "
1438                               +  ' '.join(["%s...%s"
1439                                            % (p, revision)
1440                                            for p in self.depotPaths])):
1441
1442             if info['code'] == 'error':
1443                 sys.stderr.write("p4 returned an error: %s\n"
1444                                  % info['data'])
1445                 sys.exit(1)
1446
1447
1448             change = int(info["change"])
1449             if change > newestRevision:
1450                 newestRevision = change
1451
1452             if info["action"] in ("delete", "purge"):
1453                 # don't increase the file cnt, otherwise details["depotFile123"] will have gaps!
1454                 #fileCnt = fileCnt + 1
1455                 continue
1456
1457             for prop in ["depotFile", "rev", "action", "type" ]:
1458                 details["%s%s" % (prop, fileCnt)] = info[prop]
1459
1460             fileCnt = fileCnt + 1
1461
1462         details["change"] = newestRevision
1463         self.updateOptionDict(details)
1464         try:
1465             self.commit(details, self.extractFilesFromCommit(details), self.branch, self.depotPaths)
1466         except IOError:
1467             print "IO error with git fast-import. Is your git version recent enough?"
1468             print self.gitError.read()
1469
1470
1471     def getClientSpec(self):
1472         specList = p4CmdList( "client -o" )
1473         temp = {}
1474         for entry in specList:
1475             for k,v in entry.iteritems():
1476                 if k.startswith("View"):
1477                     if v.startswith('"'):
1478                         start = 1
1479                     else:
1480                         start = 0
1481                     index = v.find("...")
1482                     v = v[start:index]
1483                     if v.startswith("-"):
1484                         v = v[1:]
1485                         temp[v] = -len(v)
1486                     else:
1487                         temp[v] = len(v)
1488         self.clientSpecDirs = temp.items()
1489         self.clientSpecDirs.sort( lambda x, y: abs( y[1] ) - abs( x[1] ) )
1490
1491     def run(self, args):
1492         self.depotPaths = []
1493         self.changeRange = ""
1494         self.initialParent = ""
1495         self.previousDepotPaths = []
1496
1497         # map from branch depot path to parent branch
1498         self.knownBranches = {}
1499         self.initialParents = {}
1500         self.hasOrigin = originP4BranchesExist()
1501         if not self.syncWithOrigin:
1502             self.hasOrigin = False
1503
1504         if self.importIntoRemotes:
1505             self.refPrefix = "refs/remotes/p4/"
1506         else:
1507             self.refPrefix = "refs/heads/p4/"
1508
1509         if self.syncWithOrigin and self.hasOrigin:
1510             if not self.silent:
1511                 print "Syncing with origin first by calling git fetch origin"
1512             system("git fetch origin")
1513
1514         if len(self.branch) == 0:
1515             self.branch = self.refPrefix + "master"
1516             if gitBranchExists("refs/heads/p4") and self.importIntoRemotes:
1517                 system("git update-ref %s refs/heads/p4" % self.branch)
1518                 system("git branch -D p4");
1519             # create it /after/ importing, when master exists
1520             if not gitBranchExists(self.refPrefix + "HEAD") and self.importIntoRemotes and gitBranchExists(self.branch):
1521                 system("git symbolic-ref %sHEAD %s" % (self.refPrefix, self.branch))
1522
1523         if self.useClientSpec or gitConfig("git-p4.useclientspec") == "true":
1524             self.getClientSpec()
1525
1526         # TODO: should always look at previous commits,
1527         # merge with previous imports, if possible.
1528         if args == []:
1529             if self.hasOrigin:
1530                 createOrUpdateBranchesFromOrigin(self.refPrefix, self.silent)
1531             self.listExistingP4GitBranches()
1532
1533             if len(self.p4BranchesInGit) > 1:
1534                 if not self.silent:
1535                     print "Importing from/into multiple branches"
1536                 self.detectBranches = True
1537
1538             if self.verbose:
1539                 print "branches: %s" % self.p4BranchesInGit
1540
1541             p4Change = 0
1542             for branch in self.p4BranchesInGit:
1543                 logMsg =  extractLogMessageFromGitCommit(self.refPrefix + branch)
1544
1545                 settings = extractSettingsGitLog(logMsg)
1546
1547                 self.readOptions(settings)
1548                 if (settings.has_key('depot-paths')
1549                     and settings.has_key ('change')):
1550                     change = int(settings['change']) + 1
1551                     p4Change = max(p4Change, change)
1552
1553                     depotPaths = sorted(settings['depot-paths'])
1554                     if self.previousDepotPaths == []:
1555                         self.previousDepotPaths = depotPaths
1556                     else:
1557                         paths = []
1558                         for (prev, cur) in zip(self.previousDepotPaths, depotPaths):
1559                             for i in range(0, min(len(cur), len(prev))):
1560                                 if cur[i] <> prev[i]:
1561                                     i = i - 1
1562                                     break
1563
1564                             paths.append (cur[:i + 1])
1565
1566                         self.previousDepotPaths = paths
1567
1568             if p4Change > 0:
1569                 self.depotPaths = sorted(self.previousDepotPaths)
1570                 self.changeRange = "@%s,#head" % p4Change
1571                 if not self.detectBranches:
1572                     self.initialParent = parseRevision(self.branch)
1573                 if not self.silent and not self.detectBranches:
1574                     print "Performing incremental import into %s git branch" % self.branch
1575
1576         if not self.branch.startswith("refs/"):
1577             self.branch = "refs/heads/" + self.branch
1578
1579         if len(args) == 0 and self.depotPaths:
1580             if not self.silent:
1581                 print "Depot paths: %s" % ' '.join(self.depotPaths)
1582         else:
1583             if self.depotPaths and self.depotPaths != args:
1584                 print ("previous import used depot path %s and now %s was specified. "
1585                        "This doesn't work!" % (' '.join (self.depotPaths),
1586                                                ' '.join (args)))
1587                 sys.exit(1)
1588
1589             self.depotPaths = sorted(args)
1590
1591         revision = ""
1592         self.users = {}
1593
1594         newPaths = []
1595         for p in self.depotPaths:
1596             if p.find("@") != -1:
1597                 atIdx = p.index("@")
1598                 self.changeRange = p[atIdx:]
1599                 if self.changeRange == "@all":
1600                     self.changeRange = ""
1601                 elif ',' not in self.changeRange:
1602                     revision = self.changeRange
1603                     self.changeRange = ""
1604                 p = p[:atIdx]
1605             elif p.find("#") != -1:
1606                 hashIdx = p.index("#")
1607                 revision = p[hashIdx:]
1608                 p = p[:hashIdx]
1609             elif self.previousDepotPaths == []:
1610                 revision = "#head"
1611
1612             p = re.sub ("\.\.\.$", "", p)
1613             if not p.endswith("/"):
1614                 p += "/"
1615
1616             newPaths.append(p)
1617
1618         self.depotPaths = newPaths
1619
1620
1621         self.loadUserMapFromCache()
1622         self.labels = {}
1623         if self.detectLabels:
1624             self.getLabels();
1625
1626         if self.detectBranches:
1627             ## FIXME - what's a P4 projectName ?
1628             self.projectName = self.guessProjectName()
1629
1630             if self.hasOrigin:
1631                 self.getBranchMappingFromGitBranches()
1632             else:
1633                 self.getBranchMapping()
1634             if self.verbose:
1635                 print "p4-git branches: %s" % self.p4BranchesInGit
1636                 print "initial parents: %s" % self.initialParents
1637             for b in self.p4BranchesInGit:
1638                 if b != "master":
1639
1640                     ## FIXME
1641                     b = b[len(self.projectName):]
1642                 self.createdBranches.add(b)
1643
1644         self.tz = "%+03d%02d" % (- time.timezone / 3600, ((- time.timezone % 3600) / 60))
1645
1646         importProcess = subprocess.Popen(["git", "fast-import"],
1647                                          stdin=subprocess.PIPE, stdout=subprocess.PIPE,
1648                                          stderr=subprocess.PIPE);
1649         self.gitOutput = importProcess.stdout
1650         self.gitStream = importProcess.stdin
1651         self.gitError = importProcess.stderr
1652
1653         if revision:
1654             self.importHeadRevision(revision)
1655         else:
1656             changes = []
1657
1658             if len(self.changesFile) > 0:
1659                 output = open(self.changesFile).readlines()
1660                 changeSet = set()
1661                 for line in output:
1662                     changeSet.add(int(line))
1663
1664                 for change in changeSet:
1665                     changes.append(change)
1666
1667                 changes.sort()
1668             else:
1669                 if self.verbose:
1670                     print "Getting p4 changes for %s...%s" % (', '.join(self.depotPaths),
1671                                                               self.changeRange)
1672                 changes = p4ChangesForPaths(self.depotPaths, self.changeRange)
1673
1674                 if len(self.maxChanges) > 0:
1675                     changes = changes[:min(int(self.maxChanges), len(changes))]
1676
1677             if len(changes) == 0:
1678                 if not self.silent:
1679                     print "No changes to import!"
1680                 return True
1681
1682             if not self.silent and not self.detectBranches:
1683                 print "Import destination: %s" % self.branch
1684
1685             self.updatedBranches = set()
1686
1687             self.importChanges(changes)
1688
1689             if not self.silent:
1690                 print ""
1691                 if len(self.updatedBranches) > 0:
1692                     sys.stdout.write("Updated branches: ")
1693                     for b in self.updatedBranches:
1694                         sys.stdout.write("%s " % b)
1695                     sys.stdout.write("\n")
1696
1697         self.gitStream.close()
1698         if importProcess.wait() != 0:
1699             die("fast-import failed: %s" % self.gitError.read())
1700         self.gitOutput.close()
1701         self.gitError.close()
1702
1703         return True
1704
1705 class P4Rebase(Command):
1706     def __init__(self):
1707         Command.__init__(self)
1708         self.options = [ ]
1709         self.description = ("Fetches the latest revision from perforce and "
1710                             + "rebases the current work (branch) against it")
1711         self.verbose = False
1712
1713     def run(self, args):
1714         sync = P4Sync()
1715         sync.run([])
1716
1717         return self.rebase()
1718
1719     def rebase(self):
1720         if os.system("git update-index --refresh") != 0:
1721             die("Some files in your working directory are modified and different than what is in your index. You can use git update-index <filename> to bring the index up-to-date or stash away all your changes with git stash.");
1722         if len(read_pipe("git diff-index HEAD --")) > 0:
1723             die("You have uncommited changes. Please commit them before rebasing or stash them away with git stash.");
1724
1725         [upstream, settings] = findUpstreamBranchPoint()
1726         if len(upstream) == 0:
1727             die("Cannot find upstream branchpoint for rebase")
1728
1729         # the branchpoint may be p4/foo~3, so strip off the parent
1730         upstream = re.sub("~[0-9]+$", "", upstream)
1731
1732         print "Rebasing the current branch onto %s" % upstream
1733         oldHead = read_pipe("git rev-parse HEAD").strip()
1734         system("git rebase %s" % upstream)
1735         system("git diff-tree --stat --summary -M %s HEAD" % oldHead)
1736         return True
1737
1738 class P4Clone(P4Sync):
1739     def __init__(self):
1740         P4Sync.__init__(self)
1741         self.description = "Creates a new git repository and imports from Perforce into it"
1742         self.usage = "usage: %prog [options] //depot/path[@revRange]"
1743         self.options += [
1744             optparse.make_option("--destination", dest="cloneDestination",
1745                                  action='store', default=None,
1746                                  help="where to leave result of the clone"),
1747             optparse.make_option("-/", dest="cloneExclude",
1748                                  action="append", type="string",
1749                                  help="exclude depot path")
1750         ]
1751         self.cloneDestination = None
1752         self.needsGit = False
1753
1754     # This is required for the "append" cloneExclude action
1755     def ensure_value(self, attr, value):
1756         if not hasattr(self, attr) or getattr(self, attr) is None:
1757             setattr(self, attr, value)
1758         return getattr(self, attr)
1759
1760     def defaultDestination(self, args):
1761         ## TODO: use common prefix of args?
1762         depotPath = args[0]
1763         depotDir = re.sub("(@[^@]*)$", "", depotPath)
1764         depotDir = re.sub("(#[^#]*)$", "", depotDir)
1765         depotDir = re.sub(r"\.\.\.$", "", depotDir)
1766         depotDir = re.sub(r"/$", "", depotDir)
1767         return os.path.split(depotDir)[1]
1768
1769     def run(self, args):
1770         if len(args) < 1:
1771             return False
1772
1773         if self.keepRepoPath and not self.cloneDestination:
1774             sys.stderr.write("Must specify destination for --keep-path\n")
1775             sys.exit(1)
1776
1777         depotPaths = args
1778
1779         if not self.cloneDestination and len(depotPaths) > 1:
1780             self.cloneDestination = depotPaths[-1]
1781             depotPaths = depotPaths[:-1]
1782
1783         self.cloneExclude = ["/"+p for p in self.cloneExclude]
1784         for p in depotPaths:
1785             if not p.startswith("//"):
1786                 return False
1787
1788         if not self.cloneDestination:
1789             self.cloneDestination = self.defaultDestination(args)
1790
1791         print "Importing from %s into %s" % (', '.join(depotPaths), self.cloneDestination)
1792         if not os.path.exists(self.cloneDestination):
1793             os.makedirs(self.cloneDestination)
1794         chdir(self.cloneDestination)
1795         system("git init")
1796         self.gitdir = os.getcwd() + "/.git"
1797         if not P4Sync.run(self, depotPaths):
1798             return False
1799         if self.branch != "master":
1800             if self.importIntoRemotes:
1801                 masterbranch = "refs/remotes/p4/master"
1802             else:
1803                 masterbranch = "refs/heads/p4/master"
1804             if gitBranchExists(masterbranch):
1805                 system("git branch master %s" % masterbranch)
1806                 system("git checkout -f")
1807             else:
1808                 print "Could not detect main branch. No checkout/master branch created."
1809
1810         return True
1811
1812 class P4Branches(Command):
1813     def __init__(self):
1814         Command.__init__(self)
1815         self.options = [ ]
1816         self.description = ("Shows the git branches that hold imports and their "
1817                             + "corresponding perforce depot paths")
1818         self.verbose = False
1819
1820     def run(self, args):
1821         if originP4BranchesExist():
1822             createOrUpdateBranchesFromOrigin()
1823
1824         cmdline = "git rev-parse --symbolic "
1825         cmdline += " --remotes"
1826
1827         for line in read_pipe_lines(cmdline):
1828             line = line.strip()
1829
1830             if not line.startswith('p4/') or line == "p4/HEAD":
1831                 continue
1832             branch = line
1833
1834             log = extractLogMessageFromGitCommit("refs/remotes/%s" % branch)
1835             settings = extractSettingsGitLog(log)
1836
1837             print "%s <= %s (%s)" % (branch, ",".join(settings["depot-paths"]), settings["change"])
1838         return True
1839
1840 class HelpFormatter(optparse.IndentedHelpFormatter):
1841     def __init__(self):
1842         optparse.IndentedHelpFormatter.__init__(self)
1843
1844     def format_description(self, description):
1845         if description:
1846             return description + "\n"
1847         else:
1848             return ""
1849
1850 def printUsage(commands):
1851     print "usage: %s <command> [options]" % sys.argv[0]
1852     print ""
1853     print "valid commands: %s" % ", ".join(commands)
1854     print ""
1855     print "Try %s <command> --help for command specific help." % sys.argv[0]
1856     print ""
1857
1858 commands = {
1859     "debug" : P4Debug,
1860     "submit" : P4Submit,
1861     "commit" : P4Submit,
1862     "sync" : P4Sync,
1863     "rebase" : P4Rebase,
1864     "clone" : P4Clone,
1865     "rollback" : P4RollBack,
1866     "branches" : P4Branches
1867 }
1868
1869
1870 def main():
1871     if len(sys.argv[1:]) == 0:
1872         printUsage(commands.keys())
1873         sys.exit(2)
1874
1875     cmd = ""
1876     cmdName = sys.argv[1]
1877     try:
1878         klass = commands[cmdName]
1879         cmd = klass()
1880     except KeyError:
1881         print "unknown command %s" % cmdName
1882         print ""
1883         printUsage(commands.keys())
1884         sys.exit(2)
1885
1886     options = cmd.options
1887     cmd.gitdir = os.environ.get("GIT_DIR", None)
1888
1889     args = sys.argv[2:]
1890
1891     if len(options) > 0:
1892         options.append(optparse.make_option("--git-dir", dest="gitdir"))
1893
1894         parser = optparse.OptionParser(cmd.usage.replace("%prog", "%prog " + cmdName),
1895                                        options,
1896                                        description = cmd.description,
1897                                        formatter = HelpFormatter())
1898
1899         (cmd, args) = parser.parse_args(sys.argv[2:], cmd);
1900     global verbose
1901     verbose = cmd.verbose
1902     if cmd.needsGit:
1903         if cmd.gitdir == None:
1904             cmd.gitdir = os.path.abspath(".git")
1905             if not isValidGitDir(cmd.gitdir):
1906                 cmd.gitdir = read_pipe("git rev-parse --git-dir").strip()
1907                 if os.path.exists(cmd.gitdir):
1908                     cdup = read_pipe("git rev-parse --show-cdup").strip()
1909                     if len(cdup) > 0:
1910                         chdir(cdup);
1911
1912         if not isValidGitDir(cmd.gitdir):
1913             if isValidGitDir(cmd.gitdir + "/.git"):
1914                 cmd.gitdir += "/.git"
1915             else:
1916                 die("fatal: cannot locate git repository at %s" % cmd.gitdir)
1917
1918         os.environ["GIT_DIR"] = cmd.gitdir
1919
1920     if not cmd.run(args):
1921         parser.print_help()
1922
1923
1924 if __name__ == '__main__':
1925     main()