contrib/fast-import/git-p4.py

   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 <hausmann@kde.org>
   6 # Copyright: 2007 Simon Hausmann <hausmann@kde.org>
   7 #            2007 Trolltech ASA
   8 # License: MIT <http://www.opensource.org/licenses/mit-license.php>
   9 #
  10
  11 import optparse, sys, os, marshal, popen2, shelve
  12 import tempfile, getopt, sha, os.path, time
  13 from sets import Set;
  14
  15 gitdir = os.environ.get("GIT_DIR", "")
  16
  17 def p4CmdList(cmd):
  18     cmd = "p4 -G %s" % cmd
  19     pipe = os.popen(cmd, "rb")
  20
  21     result = []
  22     try:
  23         while True:
  24             entry = marshal.load(pipe)
  25             result.append(entry)
  26     except EOFError:
  27         pass
  28     pipe.close()
  29
  30     return result
  31
  32 def p4Cmd(cmd):
  33     list = p4CmdList(cmd)
  34     result = {}
  35     for entry in list:
  36         result.update(entry)
  37     return result;
  38
  39 def die(msg):
  40     sys.stderr.write(msg + "\n")
  41     sys.exit(1)
  42
  43 def currentGitBranch():
  44     return os.popen("git-name-rev HEAD").read().split(" ")[1][:-1]
  45
  46 def isValidGitDir(path):
  47     if os.path.exists(path + "/HEAD") and os.path.exists(path + "/refs") and os.path.exists(path + "/objects"):
  48         return True;
  49     return False
  50
  51 def system(cmd):
  52     if os.system(cmd) != 0:
  53         die("command failed: %s" % cmd)
  54
  55 class Command:
  56     def __init__(self):
  57         self.usage = "usage: %prog [options]"
  58
  59 class P4Debug(Command):
  60     def __init__(self):
  61         self.options = [
  62         ]
  63         self.description = "A tool to debug the output of p4 -G."
  64
  65     def run(self, args):
  66         for output in p4CmdList(" ".join(args)):
  67             print output
  68         return True
  69
  70 class P4CleanTags(Command):
  71     def __init__(self):
  72         Command.__init__(self)
  73         self.options = [
  74 #                optparse.make_option("--branch", dest="branch", default="refs/heads/master")
  75         ]
  76         self.description = "A tool to remove stale unused tags from incremental perforce imports."
  77     def run(self, args):
  78         branch = currentGitBranch()
  79         print "Cleaning out stale p4 import tags..."
  80         sout, sin, serr = popen2.popen3("git-name-rev --tags `git-rev-parse %s`" % branch)
  81         output = sout.read()
  82         try:
  83             tagIdx = output.index(" tags/p4/")
  84         except:
  85             print "Cannot find any p4/* tag. Nothing to do."
  86             sys.exit(0)
  87
  88         try:
  89             caretIdx = output.index("^")
  90         except:
  91             caretIdx = len(output) - 1
  92         rev = int(output[tagIdx + 9 : caretIdx])
  93
  94         allTags = os.popen("git tag -l p4/").readlines()
  95         for i in range(len(allTags)):
  96             allTags[i] = int(allTags[i][3:-1])
  97
  98         allTags.sort()
  99
 100         allTags.remove(rev)
 101
 102         for rev in allTags:
 103             print os.popen("git tag -d p4/%s" % rev).read()
 104
 105         print "%s tags removed." % len(allTags)
 106         return True
 107
 108 class P4Sync(Command):
 109     def __init__(self):
 110         Command.__init__(self)
 111         self.options = [
 112                 optparse.make_option("--continue", action="store_false", dest="firstTime"),
 113                 optparse.make_option("--origin", dest="origin"),
 114                 optparse.make_option("--reset", action="store_true", dest="reset"),
 115                 optparse.make_option("--master", dest="master"),
 116                 optparse.make_option("--log-substitutions", dest="substFile"),
 117                 optparse.make_option("--noninteractive", action="store_false"),
 118                 optparse.make_option("--dry-run", action="store_true")
 119         ]
 120         self.description = "Submit changes from git to the perforce depot."
 121         self.firstTime = True
 122         self.reset = False
 123         self.interactive = True
 124         self.dryRun = False
 125         self.substFile = ""
 126         self.firstTime = True
 127         self.origin = "origin"
 128         self.master = ""
 129
 130         self.logSubstitutions = {}
 131         self.logSubstitutions["<enter description here>"] = "%log%"
 132         self.logSubstitutions["\tDetails:"] = "\tDetails:  %log%"
 133
 134     def check(self):
 135         if len(p4CmdList("opened ...")) > 0:
 136             die("You have files opened with perforce! Close them before starting the sync.")
 137
 138     def start(self):
 139         if len(self.config) > 0 and not self.reset:
 140             die("Cannot start sync. Previous sync config found at %s" % self.configFile)
 141
 142         commits = []
 143         for line in os.popen("git-rev-list --no-merges %s..%s" % (self.origin, self.master)).readlines():
 144             commits.append(line[:-1])
 145         commits.reverse()
 146
 147         self.config["commits"] = commits
 148
 149         print "Creating temporary p4-sync branch from %s ..." % self.origin
 150         system("git checkout -f -b p4-sync %s" % self.origin)
 151
 152     def prepareLogMessage(self, template, message):
 153         result = ""
 154
 155         for line in template.split("\n"):
 156             if line.startswith("#"):
 157                 result += line + "\n"
 158                 continue
 159
 160             substituted = False
 161             for key in self.logSubstitutions.keys():
 162                 if line.find(key) != -1:
 163                     value = self.logSubstitutions[key]
 164                     value = value.replace("%log%", message)
 165                     if value != "@remove@":
 166                         result += line.replace(key, value) + "\n"
 167                     substituted = True
 168                     break
 169
 170             if not substituted:
 171                 result += line + "\n"
 172
 173         return result
 174
 175     def apply(self, id):
 176         print "Applying %s" % (os.popen("git-log --max-count=1 --pretty=oneline %s" % id).read())
 177         diff = os.popen("git diff-tree -r --name-status \"%s^\" \"%s\"" % (id, id)).readlines()
 178         filesToAdd = set()
 179         filesToDelete = set()
 180         for line in diff:
 181             modifier = line[0]
 182             path = line[1:].strip()
 183             if modifier == "M":
 184                 system("p4 edit %s" % path)
 185             elif modifier == "A":
 186                 filesToAdd.add(path)
 187                 if path in filesToDelete:
 188                     filesToDelete.remove(path)
 189             elif modifier == "D":
 190                 filesToDelete.add(path)
 191                 if path in filesToAdd:
 192                     filesToAdd.remove(path)
 193             else:
 194                 die("unknown modifier %s for %s" % (modifier, path))
 195
 196         system("git-diff-files --name-only -z | git-update-index --remove -z --stdin")
 197         system("git cherry-pick --no-commit \"%s\"" % id)
 198
 199         for f in filesToAdd:
 200             system("p4 add %s" % f)
 201         for f in filesToDelete:
 202             system("p4 revert %s" % f)
 203             system("p4 delete %s" % f)
 204
 205         logMessage = ""
 206         foundTitle = False
 207         for log in os.popen("git-cat-file commit %s" % id).readlines():
 208             if not foundTitle:
 209                 if len(log) == 1:
 210                     foundTitle = 1
 211                 continue
 212
 213             if len(logMessage) > 0:
 214                 logMessage += "\t"
 215             logMessage += log
 216
 217         template = os.popen("p4 change -o").read()
 218
 219         if self.interactive:
 220             submitTemplate = self.prepareLogMessage(template, logMessage)
 221             diff = os.popen("p4 diff -du ...").read()
 222
 223             for newFile in filesToAdd:
 224                 diff += "==== new file ====\n"
 225                 diff += "--- /dev/null\n"
 226                 diff += "+++ %s\n" % newFile
 227                 f = open(newFile, "r")
 228                 for line in f.readlines():
 229                     diff += "+" + line
 230                 f.close()
 231
 232             pipe = os.popen("less", "w")
 233             pipe.write(submitTemplate + diff)
 234             pipe.close()
 235
 236             response = "e"
 237             while response == "e":
 238                 response = raw_input("Do you want to submit this change (y/e/n)? ")
 239                 if response == "e":
 240                     [handle, fileName] = tempfile.mkstemp()
 241                     tmpFile = os.fdopen(handle, "w+")
 242                     tmpFile.write(submitTemplate)
 243                     tmpFile.close()
 244                     editor = os.environ.get("EDITOR", "vi")
 245                     system(editor + " " + fileName)
 246                     tmpFile = open(fileName, "r")
 247                     submitTemplate = tmpFile.read()
 248                     tmpFile.close()
 249                     os.remove(fileName)
 250
 251             if response == "y" or response == "yes":
 252                if self.dryRun:
 253                    print submitTemplate
 254                    raw_input("Press return to continue...")
 255                else:
 256                     pipe = os.popen("p4 submit -i", "w")
 257                     pipe.write(submitTemplate)
 258                     pipe.close()
 259             else:
 260                 print "Not submitting!"
 261                 self.interactive = False
 262         else:
 263             fileName = "submit.txt"
 264             file = open(fileName, "w+")
 265             file.write(self.prepareLogMessage(template, logMessage))
 266             file.close()
 267             print "Perforce submit template written as %s. Please review/edit and then use p4 submit -i < %s to submit directly!" % (fileName, fileName)
 268
 269     def run(self, args):
 270         if self.reset:
 271             self.firstTime = True
 272
 273         if len(self.substFile) > 0:
 274             for line in open(self.substFile, "r").readlines():
 275                 tokens = line[:-1].split("=")
 276                 self.logSubstitutions[tokens[0]] = tokens[1]
 277
 278         if len(self.master) == 0:
 279             self.master = currentGitBranch()
 280             if len(self.master) == 0 or not os.path.exists("%s/refs/heads/%s" % (gitdir, self.master)):
 281                 die("Detecting current git branch failed!")
 282
 283         self.check()
 284         self.configFile = gitdir + "/p4-git-sync.cfg"
 285         self.config = shelve.open(self.configFile, writeback=True)
 286
 287         if self.firstTime:
 288             self.start()
 289
 290         commits = self.config.get("commits", [])
 291
 292         while len(commits) > 0:
 293             self.firstTime = False
 294             commit = commits[0]
 295             commits = commits[1:]
 296             self.config["commits"] = commits
 297             self.apply(commit)
 298             if not self.interactive:
 299                 break
 300
 301         self.config.close()
 302
 303         if len(commits) == 0:
 304             if self.firstTime:
 305                 print "No changes found to apply between %s and current HEAD" % self.origin
 306             else:
 307                 print "All changes applied!"
 308                 print "Deleting temporary p4-sync branch and going back to %s" % self.master
 309                 system("git checkout %s" % self.master)
 310                 system("git branch -D p4-sync")
 311                 print "Cleaning out your perforce checkout by doing p4 edit ... ; p4 revert ..."
 312                 system("p4 edit ... >/dev/null")
 313                 system("p4 revert ... >/dev/null")
 314             os.remove(self.configFile)
 315
 316         return True
 317
 318 class GitSync(Command):
 319     def __init__(self):
 320         Command.__init__(self)
 321         self.options = [
 322                 optparse.make_option("--branch", dest="branch"),
 323                 optparse.make_option("--detect-branches", dest="detectBranches", action="store_true"),
 324                 optparse.make_option("--changesfile", dest="changesFile"),
 325                 optparse.make_option("--silent", dest="silent", action="store_true"),
 326                 optparse.make_option("--known-branches", dest="knownBranches"),
 327                 optparse.make_option("--cache", dest="doCache", action="store_true"),
 328                 optparse.make_option("--command-cache", dest="commandCache", action="store_true")
 329         ]
 330         self.description = """Imports from Perforce into a git repository.\n
 331     example:
 332     //depot/my/project/ -- to import the current head
 333     //depot/my/project/@all -- to import everything
 334     //depot/my/project/@1,6 -- to import only from revision 1 to 6
 335
 336     (a ... is not needed in the path p4 specification, it's added implicitly)"""
 337
 338         self.usage += " //depot/path[@revRange]"
 339
 340         self.dataCache = False
 341         self.commandCache = False
 342         self.silent = False
 343         self.knownBranches = Set()
 344         self.createdBranches = Set()
 345         self.committedChanges = Set()
 346         self.branch = "master"
 347         self.detectBranches = False
 348         self.changesFile = ""
 349
 350     def p4File(self, depotPath):
 351         return os.popen("p4 print -q \"%s\"" % depotPath, "rb").read()
 352
 353     def extractFilesFromCommit(self, commit):
 354         files = []
 355         fnum = 0
 356         while commit.has_key("depotFile%s" % fnum):
 357             path =  commit["depotFile%s" % fnum]
 358             if not path.startswith(self.globalPrefix):
 359     #            if not self.silent:
 360     #                print "\nchanged files: ignoring path %s outside of %s in change %s" % (path, self.globalPrefix, change)
 361                 fnum = fnum + 1
 362                 continue
 363
 364             file = {}
 365             file["path"] = path
 366             file["rev"] = commit["rev%s" % fnum]
 367             file["action"] = commit["action%s" % fnum]
 368             file["type"] = commit["type%s" % fnum]
 369             files.append(file)
 370             fnum = fnum + 1
 371         return files
 372
 373     def isSubPathOf(self, first, second):
 374         if not first.startswith(second):
 375             return False
 376         if first == second:
 377             return True
 378         return first[len(second)] == "/"
 379
 380     def branchesForCommit(self, files):
 381         branches = Set()
 382
 383         for file in files:
 384             relativePath = file["path"][len(self.globalPrefix):]
 385             # strip off the filename
 386             relativePath = relativePath[0:relativePath.rfind("/")]
 387
 388     #        if len(branches) == 0:
 389     #            branches.add(relativePath)
 390     #            knownBranches.add(relativePath)
 391     #            continue
 392
 393             ###### this needs more testing :)
 394             knownBranch = False
 395             for branch in branches:
 396                 if relativePath == branch:
 397                     knownBranch = True
 398                     break
 399     #            if relativePath.startswith(branch):
 400                 if self.isSubPathOf(relativePath, branch):
 401                     knownBranch = True
 402                     break
 403     #            if branch.startswith(relativePath):
 404                 if self.isSubPathOf(branch, relativePath):
 405                     branches.remove(branch)
 406                     break
 407
 408             if knownBranch:
 409                 continue
 410
 411             for branch in knownBranches:
 412                 #if relativePath.startswith(branch):
 413                 if self.isSubPathOf(relativePath, branch):
 414                     if len(branches) == 0:
 415                         relativePath = branch
 416                     else:
 417                         knownBranch = True
 418                     break
 419
 420             if knownBranch:
 421                 continue
 422
 423             branches.add(relativePath)
 424             self.knownBranches.add(relativePath)
 425
 426         return branches
 427
 428     def findBranchParent(self, branchPrefix, files):
 429         for file in files:
 430             path = file["path"]
 431             if not path.startswith(branchPrefix):
 432                 continue
 433             action = file["action"]
 434             if action != "integrate" and action != "branch":
 435                 continue
 436             rev = file["rev"]
 437             depotPath = path + "#" + rev
 438
 439             log = p4CmdList("filelog \"%s\"" % depotPath)
 440             if len(log) != 1:
 441                 print "eek! I got confused by the filelog of %s" % depotPath
 442                 sys.exit(1);
 443
 444             log = log[0]
 445             if log["action0"] != action:
 446                 print "eek! wrong action in filelog for %s : found %s, expected %s" % (depotPath, log["action0"], action)
 447                 sys.exit(1);
 448
 449             branchAction = log["how0,0"]
 450     #        if branchAction == "branch into" or branchAction == "ignored":
 451     #            continue # ignore for branching
 452
 453             if not branchAction.endswith(" from"):
 454                 continue # ignore for branching
 455     #            print "eek! file %s was not branched from but instead: %s" % (depotPath, branchAction)
 456     #            sys.exit(1);
 457
 458             source = log["file0,0"]
 459             if source.startswith(branchPrefix):
 460                 continue
 461
 462             lastSourceRev = log["erev0,0"]
 463
 464             sourceLog = p4CmdList("filelog -m 1 \"%s%s\"" % (source, lastSourceRev))
 465             if len(sourceLog) != 1:
 466                 print "eek! I got confused by the source filelog of %s%s" % (source, lastSourceRev)
 467                 sys.exit(1);
 468             sourceLog = sourceLog[0]
 469
 470             relPath = source[len(self.globalPrefix):]
 471             # strip off the filename
 472             relPath = relPath[0:relPath.rfind("/")]
 473
 474             for branch in self.knownBranches:
 475                 if self.isSubPathOf(relPath, branch):
 476     #                print "determined parent branch branch %s due to change in file %s" % (branch, source)
 477                     return branch
 478     #            else:
 479     #                print "%s is not a subpath of branch %s" % (relPath, branch)
 480
 481         return ""
 482
 483     def commit(self, details, files, branch, branchPrefix, parent = "", merged = ""):
 484         epoch = details["time"]
 485         author = details["user"]
 486
 487         self.gitStream.write("commit %s\n" % branch)
 488     #    gitStream.write("mark :%s\n" % details["change"])
 489         self.committedChanges.add(int(details["change"]))
 490         committer = ""
 491         if author in self.users:
 492             committer = "%s %s %s" % (self.users[author], epoch, self.tz)
 493         else:
 494             committer = "%s <a@b> %s %s" % (author, epoch, self.tz)
 495
 496         self.gitStream.write("committer %s\n" % committer)
 497
 498         self.gitStream.write("data <<EOT\n")
 499         self.gitStream.write(details["desc"])
 500         self.gitStream.write("\n[ imported from %s; change %s ]\n" % (branchPrefix, details["change"]))
 501         self.gitStream.write("EOT\n\n")
 502
 503         if len(parent) > 0:
 504             self.gitStream.write("from %s\n" % parent)
 505
 506         if len(merged) > 0:
 507             self.gitStream.write("merge %s\n" % merged)
 508
 509         for file in files:
 510             path = file["path"]
 511             if not path.startswith(branchPrefix):
 512     #            if not silent:
 513     #                print "\nchanged files: ignoring path %s outside of branch prefix %s in change %s" % (path, branchPrefix, details["change"])
 514                 continue
 515             rev = file["rev"]
 516             depotPath = path + "#" + rev
 517             relPath = path[len(branchPrefix):]
 518             action = file["action"]
 519
 520             if file["type"] == "apple":
 521                 print "\nfile %s is a strange apple file that forks. Ignoring!" % path
 522                 continue
 523
 524             if action == "delete":
 525                 self.gitStream.write("D %s\n" % relPath)
 526             else:
 527                 mode = 644
 528                 if file["type"].startswith("x"):
 529                     mode = 755
 530
 531                 data = self.p4File(depotPath)
 532
 533                 self.gitStream.write("M %s inline %s\n" % (mode, relPath))
 534                 self.gitStream.write("data %s\n" % len(data))
 535                 self.gitStream.write(data)
 536                 self.gitStream.write("\n")
 537
 538         self.gitStream.write("\n")
 539
 540         self.lastChange = int(details["change"])
 541
 542     def extractFilesInCommitToBranch(self, files, branchPrefix):
 543         newFiles = []
 544
 545         for file in files:
 546             path = file["path"]
 547             if path.startswith(branchPrefix):
 548                 newFiles.append(file)
 549
 550         return newFiles
 551
 552     def findBranchSourceHeuristic(self, files, branch, branchPrefix):
 553         for file in files:
 554             action = file["action"]
 555             if action != "integrate" and action != "branch":
 556                 continue
 557             path = file["path"]
 558             rev = file["rev"]
 559             depotPath = path + "#" + rev
 560
 561             log = p4CmdList("filelog \"%s\"" % depotPath)
 562             if len(log) != 1:
 563                 print "eek! I got confused by the filelog of %s" % depotPath
 564                 sys.exit(1);
 565
 566             log = log[0]
 567             if log["action0"] != action:
 568                 print "eek! wrong action in filelog for %s : found %s, expected %s" % (depotPath, log["action0"], action)
 569                 sys.exit(1);
 570
 571             branchAction = log["how0,0"]
 572
 573             if not branchAction.endswith(" from"):
 574                 continue # ignore for branching
 575     #            print "eek! file %s was not branched from but instead: %s" % (depotPath, branchAction)
 576     #            sys.exit(1);
 577
 578             source = log["file0,0"]
 579             if source.startswith(branchPrefix):
 580                 continue
 581
 582             lastSourceRev = log["erev0,0"]
 583
 584             sourceLog = p4CmdList("filelog -m 1 \"%s%s\"" % (source, lastSourceRev))
 585             if len(sourceLog) != 1:
 586                 print "eek! I got confused by the source filelog of %s%s" % (source, lastSourceRev)
 587                 sys.exit(1);
 588             sourceLog = sourceLog[0]
 589
 590             relPath = source[len(self.globalPrefix):]
 591             # strip off the filename
 592             relPath = relPath[0:relPath.rfind("/")]
 593
 594             for candidate in self.knownBranches:
 595                 if self.isSubPathOf(relPath, candidate) and candidate != branch:
 596                     return candidate
 597
 598         return ""
 599
 600     def changeIsBranchMerge(self, sourceBranch, destinationBranch, change):
 601         sourceFiles = {}
 602         for file in p4CmdList("files %s...@%s" % (self.globalPrefix + sourceBranch + "/", change)):
 603             if file["action"] == "delete":
 604                 continue
 605             sourceFiles[file["depotFile"]] = file
 606
 607         destinationFiles = {}
 608         for file in p4CmdList("files %s...@%s" % (self.globalPrefix + destinationBranch + "/", change)):
 609             destinationFiles[file["depotFile"]] = file
 610
 611         for fileName in sourceFiles.keys():
 612             integrations = []
 613             deleted = False
 614             integrationCount = 0
 615             for integration in p4CmdList("integrated \"%s\"" % fileName):
 616                 toFile = integration["fromFile"] # yes, it's true, it's fromFile
 617                 if not toFile in destinationFiles:
 618                     continue
 619                 destFile = destinationFiles[toFile]
 620                 if destFile["action"] == "delete":
 621     #                print "file %s has been deleted in %s" % (fileName, toFile)
 622                     deleted = True
 623                     break
 624                 integrationCount += 1
 625                 if integration["how"] == "branch from":
 626                     continue
 627
 628                 if int(integration["change"]) == change:
 629                     integrations.append(integration)
 630                     continue
 631                 if int(integration["change"]) > change:
 632                     continue
 633
 634                 destRev = int(destFile["rev"])
 635
 636                 startRev = integration["startFromRev"][1:]
 637                 if startRev == "none":
 638                     startRev = 0
 639                 else:
 640                     startRev = int(startRev)
 641
 642                 endRev = integration["endFromRev"][1:]
 643                 if endRev == "none":
 644                     endRev = 0
 645                 else:
 646                     endRev = int(endRev)
 647
 648                 initialBranch = (destRev == 1 and integration["how"] != "branch into")
 649                 inRange = (destRev >= startRev and destRev <= endRev)
 650                 newer = (destRev > startRev and destRev > endRev)
 651
 652                 if initialBranch or inRange or newer:
 653                     integrations.append(integration)
 654
 655             if deleted:
 656                 continue
 657
 658             if len(integrations) == 0 and integrationCount > 1:
 659                 print "file %s was not integrated from %s into %s" % (fileName, sourceBranch, destinationBranch)
 660                 return False
 661
 662         return True
 663
 664     def getUserMap(self):
 665         self.users = {}
 666
 667         for output in p4CmdList("users"):
 668             if not output.has_key("User"):
 669                 continue
 670             self.users[output["User"]] = output["FullName"] + " <" + output["Email"] + ">"
 671
 672     def run(self, args):
 673         self.branch = "refs/heads/" + self.branch
 674         self.globalPrefix = self.previousDepotPath = os.popen("git-repo-config --get p4.depotpath").read()
 675         if len(self.globalPrefix) != 0:
 676             self.globalPrefix = self.globalPrefix[:-1]
 677
 678         if len(args) == 0 and len(self.globalPrefix) != 0:
 679             if not self.silent:
 680                 print "[using previously specified depot path %s]" % self.globalPrefix
 681         elif len(args) != 1:
 682             return False
 683         else:
 684             if len(self.globalPrefix) != 0 and self.globalPrefix != args[0]:
 685                 print "previous import used depot path %s and now %s was specified. this doesn't work!" % (self.globalPrefix, args[0])
 686                 sys.exit(1)
 687             self.globalPrefix = args[0]
 688
 689         self.changeRange = ""
 690         self.revision = ""
 691         self.users = {}
 692         self.initialParent = ""
 693         self.lastChange = 0
 694         self.initialTag = ""
 695
 696         if self.globalPrefix.find("@") != -1:
 697             atIdx = self.globalPrefix.index("@")
 698             self.changeRange = self.globalPrefix[atIdx:]
 699             if self.changeRange == "@all":
 700                 self.changeRange = ""
 701             elif self.changeRange.find(",") == -1:
 702                 self.revision = self.changeRange
 703                 self.changeRange = ""
 704             self.globalPrefix = self.globalPrefix[0:atIdx]
 705         elif self.globalPrefix.find("#") != -1:
 706             hashIdx = self.globalPrefix.index("#")
 707             self.revision = self.globalPrefix[hashIdx:]
 708             self.globalPrefix = self.globalPrefix[0:hashIdx]
 709         elif len(self.previousDepotPath) == 0:
 710             self.revision = "#head"
 711
 712         if self.globalPrefix.endswith("..."):
 713             self.globalPrefix = self.globalPrefix[:-3]
 714
 715         if not self.globalPrefix.endswith("/"):
 716             self.globalPrefix += "/"
 717
 718         self.getUserMap()
 719
 720         if len(self.changeRange) == 0:
 721             try:
 722                 sout, sin, serr = popen2.popen3("git-name-rev --tags `git-rev-parse %s`" % self.branch)
 723                 output = sout.read()
 724                 if output.endswith("\n"):
 725                     output = output[:-1]
 726                 tagIdx = output.index(" tags/p4/")
 727                 caretIdx = output.find("^")
 728                 endPos = len(output)
 729                 if caretIdx != -1:
 730                     endPos = caretIdx
 731                 self.rev = int(output[tagIdx + 9 : endPos]) + 1
 732                 self.changeRange = "@%s,#head" % self.rev
 733                 self.initialParent = os.popen("git-rev-parse %s" % self.branch).read()[:-1]
 734                 self.initialTag = "p4/%s" % (int(self.rev) - 1)
 735             except:
 736                 pass
 737
 738         self.tz = - time.timezone / 36
 739         tzsign = ("%s" % self.tz)[0]
 740         if tzsign != '+' and tzsign != '-':
 741             self.tz = "+" + ("%s" % self.tz)
 742
 743         self.gitOutput, self.gitStream, self.gitError = popen2.popen3("git-fast-import")
 744
 745         if len(self.revision) > 0:
 746             print "Doing initial import of %s from revision %s" % (self.globalPrefix, self.revision)
 747
 748             details = { "user" : "git perforce import user", "time" : int(time.time()) }
 749             details["desc"] = "Initial import of %s from the state at revision %s" % (self.globalPrefix, self.revision)
 750             details["change"] = self.revision
 751             newestRevision = 0
 752
 753             fileCnt = 0
 754             for info in p4CmdList("files %s...%s" % (self.globalPrefix, self.revision)):
 755                 change = int(info["change"])
 756                 if change > newestRevision:
 757                     newestRevision = change
 758
 759                 if info["action"] == "delete":
 760                     fileCnt = fileCnt + 1
 761                     continue
 762
 763                 for prop in [ "depotFile", "rev", "action", "type" ]:
 764                     details["%s%s" % (prop, fileCnt)] = info[prop]
 765
 766                 fileCnt = fileCnt + 1
 767
 768             details["change"] = newestRevision
 769
 770             try:
 771                 self.commit(details, self.extractFilesFromCommit(details), self.branch, self.globalPrefix)
 772             except IOError:
 773                 print self.gitError.read()
 774
 775         else:
 776             changes = []
 777
 778             if len(self.changesFile) > 0:
 779                 output = open(self.changesFile).readlines()
 780                 changeSet = Set()
 781                 for line in output:
 782                     changeSet.add(int(line))
 783
 784                 for change in changeSet:
 785                     changes.append(change)
 786
 787                 changes.sort()
 788             else:
 789                 output = os.popen("p4 changes %s...%s" % (self.globalPrefix, self.changeRange)).readlines()
 790
 791                 for line in output:
 792                     changeNum = line.split(" ")[1]
 793                     changes.append(changeNum)
 794
 795                 changes.reverse()
 796
 797             if len(changes) == 0:
 798                 if not self.silent:
 799                     print "no changes to import!"
 800                 sys.exit(1)
 801
 802             cnt = 1
 803             for change in changes:
 804                 description = p4Cmd("describe %s" % change)
 805
 806                 if not self.silent:
 807                     sys.stdout.write("\rimporting revision %s (%s%%)" % (change, cnt * 100 / len(changes)))
 808                     sys.stdout.flush()
 809                 cnt = cnt + 1
 810
 811                 try:
 812                     files = self.extractFilesFromCommit(description)
 813                     if self.detectBranches:
 814                         for branch in self.branchesForCommit(files):
 815                             self.knownBranches.add(branch)
 816                             branchPrefix = self.globalPrefix + branch + "/"
 817
 818                             filesForCommit = self.extractFilesInCommitToBranch(files, branchPrefix)
 819
 820                             merged = ""
 821                             parent = ""
 822                             ########### remove cnt!!!
 823                             if branch not in self.createdBranches and cnt > 2:
 824                                 self.createdBranches.add(branch)
 825                                 parent = self.findBranchParent(branchPrefix, files)
 826                                 if parent == branch:
 827                                     parent = ""
 828             #                    elif len(parent) > 0:
 829             #                        print "%s branched off of %s" % (branch, parent)
 830
 831                             if len(parent) == 0:
 832                                 merged = self.findBranchSourceHeuristic(filesForCommit, branch, branchPrefix)
 833                                 if len(merged) > 0:
 834                                     print "change %s could be a merge from %s into %s" % (description["change"], merged, branch)
 835                                     if not self.changeIsBranchMerge(merged, branch, int(description["change"])):
 836                                         merged = ""
 837
 838                             branch = "refs/heads/" + branch
 839                             if len(parent) > 0:
 840                                 parent = "refs/heads/" + parent
 841                             if len(merged) > 0:
 842                                 merged = "refs/heads/" + merged
 843                             self.commit(description, files, branch, branchPrefix, parent, merged)
 844                     else:
 845                         self.commit(description, files, self.branch, self.globalPrefix, self.initialParent)
 846                         self.initialParent = ""
 847                 except IOError:
 848                     print self.gitError.read()
 849                     sys.exit(1)
 850
 851         if not self.silent:
 852             print ""
 853
 854         self.gitStream.write("reset refs/tags/p4/%s\n" % self.lastChange)
 855         self.gitStream.write("from %s\n\n" % self.branch);
 856
 857
 858         self.gitStream.close()
 859         self.gitOutput.close()
 860         self.gitError.close()
 861
 862         os.popen("git-repo-config p4.depotpath %s" % self.globalPrefix).read()
 863         if len(self.initialTag) > 0:
 864             os.popen("git tag -d %s" % self.initialTag).read()
 865
 866         return True
 867
 868 class HelpFormatter(optparse.IndentedHelpFormatter):
 869     def __init__(self):
 870         optparse.IndentedHelpFormatter.__init__(self)
 871
 872     def format_description(self, description):
 873         if description:
 874             return description + "\n"
 875         else:
 876             return ""
 877
 878 def printUsage(commands):
 879     print "usage: %s <command> [options]" % sys.argv[0]
 880     print ""
 881     print "valid commands: %s" % ", ".join(commands)
 882     print ""
 883     print "Try %s <command> --help for command specific help." % sys.argv[0]
 884     print ""
 885
 886 commands = {
 887     "debug" : P4Debug(),
 888     "clean-tags" : P4CleanTags(),
 889     "submit" : P4Sync(),
 890     "sync" : GitSync()
 891 }
 892
 893 if len(sys.argv[1:]) == 0:
 894     printUsage(commands.keys())
 895     sys.exit(2)
 896
 897 cmd = ""
 898 cmdName = sys.argv[1]
 899 try:
 900     cmd = commands[cmdName]
 901 except KeyError:
 902     print "unknown command %s" % cmdName
 903     print ""
 904     printUsage(commands.keys())
 905     sys.exit(2)
 906
 907 options = cmd.options
 908 cmd.gitdir = gitdir
 909 options.append(optparse.make_option("--git-dir", dest="gitdir"))
 910
 911 parser = optparse.OptionParser(cmd.usage.replace("%prog", "%prog " + cmdName),
 912                                options,
 913                                description = cmd.description,
 914                                formatter = HelpFormatter())
 915
 916 (cmd, args) = parser.parse_args(sys.argv[2:], cmd);
 917
 918 gitdir = cmd.gitdir
 919 if len(gitdir) == 0:
 920     gitdir = ".git"
 921
 922 if not isValidGitDir(gitdir):
 923     if isValidGitDir(gitdir + "/.git"):
 924         gitdir += "/.git"
 925     else:
 926         die("fatal: cannot locate git repository at %s" % gitdir)
 927
 928 os.environ["GIT_DIR"] = gitdir
 929
 930 if not cmd.run(args):
 931     parser.print_help()
 932