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 <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 def extractLogMessageFromGitCommit(commit):
  56     logMessage = ""
  57     foundTitle = False
  58     for log in os.popen("git-cat-file commit %s" % commit).readlines():
  59        if not foundTitle:
  60            if len(log) == 1:
  61                foundTitle = 1
  62            continue
  63
  64        logMessage += log
  65     return logMessage
  66
  67 def extractDepotPathAndChangeFromGitLog(log):
  68     values = {}
  69     for line in log.split("\n"):
  70         line = line.strip()
  71         if line.startswith("[git-p4:") and line.endswith("]"):
  72             line = line[8:-1].strip()
  73             for assignment in line.split(":"):
  74                 variable = assignment.strip()
  75                 value = ""
  76                 equalPos = assignment.find("=")
  77                 if equalPos != -1:
  78                     variable = assignment[:equalPos].strip()
  79                     value = assignment[equalPos + 1:].strip()
  80                     if value.startswith("\"") and value.endswith("\""):
  81                         value = value[1:-1]
  82                 values[variable] = value
  83
  84     return values.get("depot-path"), values.get("change")
  85
  86 def gitBranchExists(branch):
  87     return os.system("git-rev-parse %s 2>/dev/null >/dev/null") == 0
  88
  89 class Command:
  90     def __init__(self):
  91         self.usage = "usage: %prog [options]"
  92
  93 class P4Debug(Command):
  94     def __init__(self):
  95         Command.__init__(self)
  96         self.options = [
  97         ]
  98         self.description = "A tool to debug the output of p4 -G."
  99
 100     def run(self, args):
 101         for output in p4CmdList(" ".join(args)):
 102             print output
 103         return True
 104
 105 class P4CleanTags(Command):
 106     def __init__(self):
 107         Command.__init__(self)
 108         self.options = [
 109 #                optparse.make_option("--branch", dest="branch", default="refs/heads/master")
 110         ]
 111         self.description = "A tool to remove stale unused tags from incremental perforce imports."
 112     def run(self, args):
 113         branch = currentGitBranch()
 114         print "Cleaning out stale p4 import tags..."
 115         sout, sin, serr = popen2.popen3("git-name-rev --tags `git-rev-parse %s`" % branch)
 116         output = sout.read()
 117         try:
 118             tagIdx = output.index(" tags/p4/")
 119         except:
 120             print "Cannot find any p4/* tag. Nothing to do."
 121             sys.exit(0)
 122
 123         try:
 124             caretIdx = output.index("^")
 125         except:
 126             caretIdx = len(output) - 1
 127         rev = int(output[tagIdx + 9 : caretIdx])
 128
 129         allTags = os.popen("git tag -l p4/").readlines()
 130         for i in range(len(allTags)):
 131             allTags[i] = int(allTags[i][3:-1])
 132
 133         allTags.sort()
 134
 135         allTags.remove(rev)
 136
 137         for rev in allTags:
 138             print os.popen("git tag -d p4/%s" % rev).read()
 139
 140         print "%s tags removed." % len(allTags)
 141         return True
 142
 143 class P4Sync(Command):
 144     def __init__(self):
 145         Command.__init__(self)
 146         self.options = [
 147                 optparse.make_option("--continue", action="store_false", dest="firstTime"),
 148                 optparse.make_option("--origin", dest="origin"),
 149                 optparse.make_option("--reset", action="store_true", dest="reset"),
 150                 optparse.make_option("--master", dest="master"),
 151                 optparse.make_option("--log-substitutions", dest="substFile"),
 152                 optparse.make_option("--noninteractive", action="store_false"),
 153                 optparse.make_option("--dry-run", action="store_true"),
 154                 optparse.make_option("--apply-as-patch", action="store_true", dest="applyAsPatch")
 155         ]
 156         self.description = "Submit changes from git to the perforce depot."
 157         self.firstTime = True
 158         self.reset = False
 159         self.interactive = True
 160         self.dryRun = False
 161         self.substFile = ""
 162         self.firstTime = True
 163         self.origin = "origin"
 164         self.master = ""
 165         self.applyAsPatch = True
 166
 167         self.logSubstitutions = {}
 168         self.logSubstitutions["<enter description here>"] = "%log%"
 169         self.logSubstitutions["\tDetails:"] = "\tDetails:  %log%"
 170
 171     def check(self):
 172         if len(p4CmdList("opened ...")) > 0:
 173             die("You have files opened with perforce! Close them before starting the sync.")
 174
 175     def start(self):
 176         if len(self.config) > 0 and not self.reset:
 177             die("Cannot start sync. Previous sync config found at %s" % self.configFile)
 178
 179         commits = []
 180         for line in os.popen("git-rev-list --no-merges %s..%s" % (self.origin, self.master)).readlines():
 181             commits.append(line[:-1])
 182         commits.reverse()
 183
 184         self.config["commits"] = commits
 185
 186         if not self.applyAsPatch:
 187             print "Creating temporary p4-sync branch from %s ..." % self.origin
 188             system("git checkout -f -b p4-sync %s" % self.origin)
 189
 190     def prepareLogMessage(self, template, message):
 191         result = ""
 192
 193         for line in template.split("\n"):
 194             if line.startswith("#"):
 195                 result += line + "\n"
 196                 continue
 197
 198             substituted = False
 199             for key in self.logSubstitutions.keys():
 200                 if line.find(key) != -1:
 201                     value = self.logSubstitutions[key]
 202                     value = value.replace("%log%", message)
 203                     if value != "@remove@":
 204                         result += line.replace(key, value) + "\n"
 205                     substituted = True
 206                     break
 207
 208             if not substituted:
 209                 result += line + "\n"
 210
 211         return result
 212
 213     def apply(self, id):
 214         print "Applying %s" % (os.popen("git-log --max-count=1 --pretty=oneline %s" % id).read())
 215         diff = os.popen("git diff-tree -r --name-status \"%s^\" \"%s\"" % (id, id)).readlines()
 216         filesToAdd = set()
 217         filesToDelete = set()
 218         for line in diff:
 219             modifier = line[0]
 220             path = line[1:].strip()
 221             if modifier == "M":
 222                 system("p4 edit %s" % path)
 223             elif modifier == "A":
 224                 filesToAdd.add(path)
 225                 if path in filesToDelete:
 226                     filesToDelete.remove(path)
 227             elif modifier == "D":
 228                 filesToDelete.add(path)
 229                 if path in filesToAdd:
 230                     filesToAdd.remove(path)
 231             else:
 232                 die("unknown modifier %s for %s" % (modifier, path))
 233
 234         if self.applyAsPatch:
 235             system("git-diff-tree -p --diff-filter=ACMRTUXB \"%s^\" \"%s\" | patch -p1" % (id, id))
 236         else:
 237             system("git-diff-files --name-only -z | git-update-index --remove -z --stdin")
 238             system("git cherry-pick --no-commit \"%s\"" % id)
 239
 240         for f in filesToAdd:
 241             system("p4 add %s" % f)
 242         for f in filesToDelete:
 243             system("p4 revert %s" % f)
 244             system("p4 delete %s" % f)
 245
 246         logMessage = extractLogMessageFromGitCommit(id)
 247         logMessage = logMessage.replace("\n", "\n\t")
 248         logMessage = logMessage[:-1]
 249
 250         template = os.popen("p4 change -o").read()
 251
 252         if self.interactive:
 253             submitTemplate = self.prepareLogMessage(template, logMessage)
 254             diff = os.popen("p4 diff -du ...").read()
 255
 256             for newFile in filesToAdd:
 257                 diff += "==== new file ====\n"
 258                 diff += "--- /dev/null\n"
 259                 diff += "+++ %s\n" % newFile
 260                 f = open(newFile, "r")
 261                 for line in f.readlines():
 262                     diff += "+" + line
 263                 f.close()
 264
 265             separatorLine = "######## everything below this line is just the diff #######\n"
 266
 267             response = "e"
 268             firstIteration = True
 269             while response == "e":
 270                 if not firstIteration:
 271                     response = raw_input("Do you want to submit this change (y/e/n)? ")
 272                 firstIteration = False
 273                 if response == "e":
 274                     [handle, fileName] = tempfile.mkstemp()
 275                     tmpFile = os.fdopen(handle, "w+")
 276                     tmpFile.write(submitTemplate + separatorLine + diff)
 277                     tmpFile.close()
 278                     editor = os.environ.get("EDITOR", "vi")
 279                     system(editor + " " + fileName)
 280                     tmpFile = open(fileName, "r")
 281                     message = tmpFile.read()
 282                     tmpFile.close()
 283                     os.remove(fileName)
 284                     submitTemplate = message[:message.index(separatorLine)]
 285
 286             if response == "y" or response == "yes":
 287                if self.dryRun:
 288                    print submitTemplate
 289                    raw_input("Press return to continue...")
 290                else:
 291                     pipe = os.popen("p4 submit -i", "w")
 292                     pipe.write(submitTemplate)
 293                     pipe.close()
 294             else:
 295                 print "Not submitting!"
 296                 self.interactive = False
 297         else:
 298             fileName = "submit.txt"
 299             file = open(fileName, "w+")
 300             file.write(self.prepareLogMessage(template, logMessage))
 301             file.close()
 302             print "Perforce submit template written as %s. Please review/edit and then use p4 submit -i < %s to submit directly!" % (fileName, fileName)
 303
 304     def run(self, args):
 305         if self.reset:
 306             self.firstTime = True
 307
 308         if len(self.substFile) > 0:
 309             for line in open(self.substFile, "r").readlines():
 310                 tokens = line[:-1].split("=")
 311                 self.logSubstitutions[tokens[0]] = tokens[1]
 312
 313         if len(self.master) == 0:
 314             self.master = currentGitBranch()
 315             if len(self.master) == 0 or not os.path.exists("%s/refs/heads/%s" % (gitdir, self.master)):
 316                 die("Detecting current git branch failed!")
 317
 318         self.check()
 319         self.configFile = gitdir + "/p4-git-sync.cfg"
 320         self.config = shelve.open(self.configFile, writeback=True)
 321
 322         if self.firstTime:
 323             self.start()
 324
 325         commits = self.config.get("commits", [])
 326
 327         while len(commits) > 0:
 328             self.firstTime = False
 329             commit = commits[0]
 330             commits = commits[1:]
 331             self.config["commits"] = commits
 332             self.apply(commit)
 333             if not self.interactive:
 334                 break
 335
 336         self.config.close()
 337
 338         if len(commits) == 0:
 339             if self.firstTime:
 340                 print "No changes found to apply between %s and current HEAD" % self.origin
 341             else:
 342                 print "All changes applied!"
 343                 if not self.applyAsPatch:
 344                     print "Deleting temporary p4-sync branch and going back to %s" % self.master
 345                     system("git checkout %s" % self.master)
 346                     system("git branch -D p4-sync")
 347                     print "Cleaning out your perforce checkout by doing p4 edit ... ; p4 revert ..."
 348                     system("p4 edit ... >/dev/null")
 349                     system("p4 revert ... >/dev/null")
 350             os.remove(self.configFile)
 351
 352         return True
 353
 354 class GitSync(Command):
 355     def __init__(self):
 356         Command.__init__(self)
 357         self.options = [
 358                 optparse.make_option("--branch", dest="branch"),
 359                 optparse.make_option("--detect-branches", dest="detectBranches", action="store_true"),
 360                 optparse.make_option("--changesfile", dest="changesFile"),
 361                 optparse.make_option("--silent", dest="silent", action="store_true"),
 362                 optparse.make_option("--known-branches", dest="knownBranches"),
 363                 optparse.make_option("--cache", dest="doCache", action="store_true"),
 364                 optparse.make_option("--command-cache", dest="commandCache", action="store_true")
 365         ]
 366         self.description = """Imports from Perforce into a git repository.\n
 367     example:
 368     //depot/my/project/ -- to import the current head
 369     //depot/my/project/@all -- to import everything
 370     //depot/my/project/@1,6 -- to import only from revision 1 to 6
 371
 372     (a ... is not needed in the path p4 specification, it's added implicitly)"""
 373
 374         self.usage += " //depot/path[@revRange]"
 375
 376         self.dataCache = False
 377         self.commandCache = False
 378         self.silent = False
 379         self.knownBranches = Set()
 380         self.createdBranches = Set()
 381         self.committedChanges = Set()
 382         self.branch = ""
 383         self.detectBranches = False
 384         self.changesFile = ""
 385
 386     def p4File(self, depotPath):
 387         return os.popen("p4 print -q \"%s\"" % depotPath, "rb").read()
 388
 389     def extractFilesFromCommit(self, commit):
 390         files = []
 391         fnum = 0
 392         while commit.has_key("depotFile%s" % fnum):
 393             path =  commit["depotFile%s" % fnum]
 394             if not path.startswith(self.globalPrefix):
 395     #            if not self.silent:
 396     #                print "\nchanged files: ignoring path %s outside of %s in change %s" % (path, self.globalPrefix, change)
 397                 fnum = fnum + 1
 398                 continue
 399
 400             file = {}
 401             file["path"] = path
 402             file["rev"] = commit["rev%s" % fnum]
 403             file["action"] = commit["action%s" % fnum]
 404             file["type"] = commit["type%s" % fnum]
 405             files.append(file)
 406             fnum = fnum + 1
 407         return files
 408
 409     def isSubPathOf(self, first, second):
 410         if not first.startswith(second):
 411             return False
 412         if first == second:
 413             return True
 414         return first[len(second)] == "/"
 415
 416     def branchesForCommit(self, files):
 417         branches = Set()
 418
 419         for file in files:
 420             relativePath = file["path"][len(self.globalPrefix):]
 421             # strip off the filename
 422             relativePath = relativePath[0:relativePath.rfind("/")]
 423
 424     #        if len(branches) == 0:
 425     #            branches.add(relativePath)
 426     #            knownBranches.add(relativePath)
 427     #            continue
 428
 429             ###### this needs more testing :)
 430             knownBranch = False
 431             for branch in branches:
 432                 if relativePath == branch:
 433                     knownBranch = True
 434                     break
 435     #            if relativePath.startswith(branch):
 436                 if self.isSubPathOf(relativePath, branch):
 437                     knownBranch = True
 438                     break
 439     #            if branch.startswith(relativePath):
 440                 if self.isSubPathOf(branch, relativePath):
 441                     branches.remove(branch)
 442                     break
 443
 444             if knownBranch:
 445                 continue
 446
 447             for branch in knownBranches:
 448                 #if relativePath.startswith(branch):
 449                 if self.isSubPathOf(relativePath, branch):
 450                     if len(branches) == 0:
 451                         relativePath = branch
 452                     else:
 453                         knownBranch = True
 454                     break
 455
 456             if knownBranch:
 457                 continue
 458
 459             branches.add(relativePath)
 460             self.knownBranches.add(relativePath)
 461
 462         return branches
 463
 464     def findBranchParent(self, branchPrefix, files):
 465         for file in files:
 466             path = file["path"]
 467             if not path.startswith(branchPrefix):
 468                 continue
 469             action = file["action"]
 470             if action != "integrate" and action != "branch":
 471                 continue
 472             rev = file["rev"]
 473             depotPath = path + "#" + rev
 474
 475             log = p4CmdList("filelog \"%s\"" % depotPath)
 476             if len(log) != 1:
 477                 print "eek! I got confused by the filelog of %s" % depotPath
 478                 sys.exit(1);
 479
 480             log = log[0]
 481             if log["action0"] != action:
 482                 print "eek! wrong action in filelog for %s : found %s, expected %s" % (depotPath, log["action0"], action)
 483                 sys.exit(1);
 484
 485             branchAction = log["how0,0"]
 486     #        if branchAction == "branch into" or branchAction == "ignored":
 487     #            continue # ignore for branching
 488
 489             if not branchAction.endswith(" from"):
 490                 continue # ignore for branching
 491     #            print "eek! file %s was not branched from but instead: %s" % (depotPath, branchAction)
 492     #            sys.exit(1);
 493
 494             source = log["file0,0"]
 495             if source.startswith(branchPrefix):
 496                 continue
 497
 498             lastSourceRev = log["erev0,0"]
 499
 500             sourceLog = p4CmdList("filelog -m 1 \"%s%s\"" % (source, lastSourceRev))
 501             if len(sourceLog) != 1:
 502                 print "eek! I got confused by the source filelog of %s%s" % (source, lastSourceRev)
 503                 sys.exit(1);
 504             sourceLog = sourceLog[0]
 505
 506             relPath = source[len(self.globalPrefix):]
 507             # strip off the filename
 508             relPath = relPath[0:relPath.rfind("/")]
 509
 510             for branch in self.knownBranches:
 511                 if self.isSubPathOf(relPath, branch):
 512     #                print "determined parent branch branch %s due to change in file %s" % (branch, source)
 513                     return branch
 514     #            else:
 515     #                print "%s is not a subpath of branch %s" % (relPath, branch)
 516
 517         return ""
 518
 519     def commit(self, details, files, branch, branchPrefix, parent = "", merged = ""):
 520         epoch = details["time"]
 521         author = details["user"]
 522
 523         self.gitStream.write("commit %s\n" % branch)
 524     #    gitStream.write("mark :%s\n" % details["change"])
 525         self.committedChanges.add(int(details["change"]))
 526         committer = ""
 527         if author in self.users:
 528             committer = "%s %s %s" % (self.users[author], epoch, self.tz)
 529         else:
 530             committer = "%s <a@b> %s %s" % (author, epoch, self.tz)
 531
 532         self.gitStream.write("committer %s\n" % committer)
 533
 534         self.gitStream.write("data <<EOT\n")
 535         self.gitStream.write(details["desc"])
 536         self.gitStream.write("\n[git-p4: depot-path = \"%s\": change = %s]\n" % (branchPrefix, details["change"]))
 537         self.gitStream.write("EOT\n\n")
 538
 539         if len(parent) > 0:
 540             self.gitStream.write("from %s\n" % parent)
 541
 542         if len(merged) > 0:
 543             self.gitStream.write("merge %s\n" % merged)
 544
 545         for file in files:
 546             path = file["path"]
 547             if not path.startswith(branchPrefix):
 548     #            if not silent:
 549     #                print "\nchanged files: ignoring path %s outside of branch prefix %s in change %s" % (path, branchPrefix, details["change"])
 550                 continue
 551             rev = file["rev"]
 552             depotPath = path + "#" + rev
 553             relPath = path[len(branchPrefix):]
 554             action = file["action"]
 555
 556             if file["type"] == "apple":
 557                 print "\nfile %s is a strange apple file that forks. Ignoring!" % path
 558                 continue
 559
 560             if action == "delete":
 561                 self.gitStream.write("D %s\n" % relPath)
 562             else:
 563                 mode = 644
 564                 if file["type"].startswith("x"):
 565                     mode = 755
 566
 567                 data = self.p4File(depotPath)
 568
 569                 self.gitStream.write("M %s inline %s\n" % (mode, relPath))
 570                 self.gitStream.write("data %s\n" % len(data))
 571                 self.gitStream.write(data)
 572                 self.gitStream.write("\n")
 573
 574         self.gitStream.write("\n")
 575
 576         self.lastChange = int(details["change"])
 577
 578     def extractFilesInCommitToBranch(self, files, branchPrefix):
 579         newFiles = []
 580
 581         for file in files:
 582             path = file["path"]
 583             if path.startswith(branchPrefix):
 584                 newFiles.append(file)
 585
 586         return newFiles
 587
 588     def findBranchSourceHeuristic(self, files, branch, branchPrefix):
 589         for file in files:
 590             action = file["action"]
 591             if action != "integrate" and action != "branch":
 592                 continue
 593             path = file["path"]
 594             rev = file["rev"]
 595             depotPath = path + "#" + rev
 596
 597             log = p4CmdList("filelog \"%s\"" % depotPath)
 598             if len(log) != 1:
 599                 print "eek! I got confused by the filelog of %s" % depotPath
 600                 sys.exit(1);
 601
 602             log = log[0]
 603             if log["action0"] != action:
 604                 print "eek! wrong action in filelog for %s : found %s, expected %s" % (depotPath, log["action0"], action)
 605                 sys.exit(1);
 606
 607             branchAction = log["how0,0"]
 608
 609             if not branchAction.endswith(" from"):
 610                 continue # ignore for branching
 611     #            print "eek! file %s was not branched from but instead: %s" % (depotPath, branchAction)
 612     #            sys.exit(1);
 613
 614             source = log["file0,0"]
 615             if source.startswith(branchPrefix):
 616                 continue
 617
 618             lastSourceRev = log["erev0,0"]
 619
 620             sourceLog = p4CmdList("filelog -m 1 \"%s%s\"" % (source, lastSourceRev))
 621             if len(sourceLog) != 1:
 622                 print "eek! I got confused by the source filelog of %s%s" % (source, lastSourceRev)
 623                 sys.exit(1);
 624             sourceLog = sourceLog[0]
 625
 626             relPath = source[len(self.globalPrefix):]
 627             # strip off the filename
 628             relPath = relPath[0:relPath.rfind("/")]
 629
 630             for candidate in self.knownBranches:
 631                 if self.isSubPathOf(relPath, candidate) and candidate != branch:
 632                     return candidate
 633
 634         return ""
 635
 636     def changeIsBranchMerge(self, sourceBranch, destinationBranch, change):
 637         sourceFiles = {}
 638         for file in p4CmdList("files %s...@%s" % (self.globalPrefix + sourceBranch + "/", change)):
 639             if file["action"] == "delete":
 640                 continue
 641             sourceFiles[file["depotFile"]] = file
 642
 643         destinationFiles = {}
 644         for file in p4CmdList("files %s...@%s" % (self.globalPrefix + destinationBranch + "/", change)):
 645             destinationFiles[file["depotFile"]] = file
 646
 647         for fileName in sourceFiles.keys():
 648             integrations = []
 649             deleted = False
 650             integrationCount = 0
 651             for integration in p4CmdList("integrated \"%s\"" % fileName):
 652                 toFile = integration["fromFile"] # yes, it's true, it's fromFile
 653                 if not toFile in destinationFiles:
 654                     continue
 655                 destFile = destinationFiles[toFile]
 656                 if destFile["action"] == "delete":
 657     #                print "file %s has been deleted in %s" % (fileName, toFile)
 658                     deleted = True
 659                     break
 660                 integrationCount += 1
 661                 if integration["how"] == "branch from":
 662                     continue
 663
 664                 if int(integration["change"]) == change:
 665                     integrations.append(integration)
 666                     continue
 667                 if int(integration["change"]) > change:
 668                     continue
 669
 670                 destRev = int(destFile["rev"])
 671
 672                 startRev = integration["startFromRev"][1:]
 673                 if startRev == "none":
 674                     startRev = 0
 675                 else:
 676                     startRev = int(startRev)
 677
 678                 endRev = integration["endFromRev"][1:]
 679                 if endRev == "none":
 680                     endRev = 0
 681                 else:
 682                     endRev = int(endRev)
 683
 684                 initialBranch = (destRev == 1 and integration["how"] != "branch into")
 685                 inRange = (destRev >= startRev and destRev <= endRev)
 686                 newer = (destRev > startRev and destRev > endRev)
 687
 688                 if initialBranch or inRange or newer:
 689                     integrations.append(integration)
 690
 691             if deleted:
 692                 continue
 693
 694             if len(integrations) == 0 and integrationCount > 1:
 695                 print "file %s was not integrated from %s into %s" % (fileName, sourceBranch, destinationBranch)
 696                 return False
 697
 698         return True
 699
 700     def getUserMap(self):
 701         self.users = {}
 702
 703         for output in p4CmdList("users"):
 704             if not output.has_key("User"):
 705                 continue
 706             self.users[output["User"]] = output["FullName"] + " <" + output["Email"] + ">"
 707
 708     def run(self, args):
 709         if len(self.branch) == 0:
 710             self.branch = "p4"
 711
 712         self.branch = "refs/heads/" + self.branch
 713         self.globalPrefix = self.previousDepotPath = os.popen("git-repo-config --get p4.depotpath").read()
 714         if len(self.globalPrefix) != 0:
 715             self.globalPrefix = self.globalPrefix[:-1]
 716
 717         if len(args) == 0 and len(self.globalPrefix) != 0:
 718             if not self.silent:
 719                 print "[using previously specified depot path %s]" % self.globalPrefix
 720         elif len(args) != 1:
 721             return False
 722         else:
 723             if len(self.globalPrefix) != 0 and self.globalPrefix != args[0]:
 724                 print "previous import used depot path %s and now %s was specified. this doesn't work!" % (self.globalPrefix, args[0])
 725                 sys.exit(1)
 726             self.globalPrefix = args[0]
 727
 728         self.changeRange = ""
 729         self.revision = ""
 730         self.users = {}
 731         self.initialParent = ""
 732         self.lastChange = 0
 733         self.initialTag = ""
 734
 735         if self.globalPrefix.find("@") != -1:
 736             atIdx = self.globalPrefix.index("@")
 737             self.changeRange = self.globalPrefix[atIdx:]
 738             if self.changeRange == "@all":
 739                 self.changeRange = ""
 740             elif self.changeRange.find(",") == -1:
 741                 self.revision = self.changeRange
 742                 self.changeRange = ""
 743             self.globalPrefix = self.globalPrefix[0:atIdx]
 744         elif self.globalPrefix.find("#") != -1:
 745             hashIdx = self.globalPrefix.index("#")
 746             self.revision = self.globalPrefix[hashIdx:]
 747             self.globalPrefix = self.globalPrefix[0:hashIdx]
 748         elif len(self.previousDepotPath) == 0:
 749             self.revision = "#head"
 750
 751         if self.globalPrefix.endswith("..."):
 752             self.globalPrefix = self.globalPrefix[:-3]
 753
 754         if not self.globalPrefix.endswith("/"):
 755             self.globalPrefix += "/"
 756
 757         self.getUserMap()
 758
 759         if len(self.changeRange) == 0:
 760             try:
 761                 sout, sin, serr = popen2.popen3("git-name-rev --tags `git-rev-parse %s`" % self.branch)
 762                 output = sout.read()
 763                 if output.endswith("\n"):
 764                     output = output[:-1]
 765                 tagIdx = output.index(" tags/p4/")
 766                 caretIdx = output.find("^")
 767                 endPos = len(output)
 768                 if caretIdx != -1:
 769                     endPos = caretIdx
 770                 self.rev = int(output[tagIdx + 9 : endPos]) + 1
 771                 self.changeRange = "@%s,#head" % self.rev
 772                 self.initialParent = os.popen("git-rev-parse %s" % self.branch).read()[:-1]
 773                 self.initialTag = "p4/%s" % (int(self.rev) - 1)
 774             except:
 775                 pass
 776
 777         self.tz = - time.timezone / 36
 778         tzsign = ("%s" % self.tz)[0]
 779         if tzsign != '+' and tzsign != '-':
 780             self.tz = "+" + ("%s" % self.tz)
 781
 782         self.gitOutput, self.gitStream, self.gitError = popen2.popen3("git-fast-import")
 783
 784         if len(self.revision) > 0:
 785             print "Doing initial import of %s from revision %s" % (self.globalPrefix, self.revision)
 786
 787             details = { "user" : "git perforce import user", "time" : int(time.time()) }
 788             details["desc"] = "Initial import of %s from the state at revision %s" % (self.globalPrefix, self.revision)
 789             details["change"] = self.revision
 790             newestRevision = 0
 791
 792             fileCnt = 0
 793             for info in p4CmdList("files %s...%s" % (self.globalPrefix, self.revision)):
 794                 change = int(info["change"])
 795                 if change > newestRevision:
 796                     newestRevision = change
 797
 798                 if info["action"] == "delete":
 799                     fileCnt = fileCnt + 1
 800                     continue
 801
 802                 for prop in [ "depotFile", "rev", "action", "type" ]:
 803                     details["%s%s" % (prop, fileCnt)] = info[prop]
 804
 805                 fileCnt = fileCnt + 1
 806
 807             details["change"] = newestRevision
 808
 809             try:
 810                 self.commit(details, self.extractFilesFromCommit(details), self.branch, self.globalPrefix)
 811             except IOError:
 812                 print self.gitError.read()
 813
 814         else:
 815             changes = []
 816
 817             if len(self.changesFile) > 0:
 818                 output = open(self.changesFile).readlines()
 819                 changeSet = Set()
 820                 for line in output:
 821                     changeSet.add(int(line))
 822
 823                 for change in changeSet:
 824                     changes.append(change)
 825
 826                 changes.sort()
 827             else:
 828                 output = os.popen("p4 changes %s...%s" % (self.globalPrefix, self.changeRange)).readlines()
 829
 830                 for line in output:
 831                     changeNum = line.split(" ")[1]
 832                     changes.append(changeNum)
 833
 834                 changes.reverse()
 835
 836             if len(changes) == 0:
 837                 if not self.silent:
 838                     print "no changes to import!"
 839                 sys.exit(1)
 840
 841             cnt = 1
 842             for change in changes:
 843                 description = p4Cmd("describe %s" % change)
 844
 845                 if not self.silent:
 846                     sys.stdout.write("\rimporting revision %s (%s%%)" % (change, cnt * 100 / len(changes)))
 847                     sys.stdout.flush()
 848                 cnt = cnt + 1
 849
 850                 try:
 851                     files = self.extractFilesFromCommit(description)
 852                     if self.detectBranches:
 853                         for branch in self.branchesForCommit(files):
 854                             self.knownBranches.add(branch)
 855                             branchPrefix = self.globalPrefix + branch + "/"
 856
 857                             filesForCommit = self.extractFilesInCommitToBranch(files, branchPrefix)
 858
 859                             merged = ""
 860                             parent = ""
 861                             ########### remove cnt!!!
 862                             if branch not in self.createdBranches and cnt > 2:
 863                                 self.createdBranches.add(branch)
 864                                 parent = self.findBranchParent(branchPrefix, files)
 865                                 if parent == branch:
 866                                     parent = ""
 867             #                    elif len(parent) > 0:
 868             #                        print "%s branched off of %s" % (branch, parent)
 869
 870                             if len(parent) == 0:
 871                                 merged = self.findBranchSourceHeuristic(filesForCommit, branch, branchPrefix)
 872                                 if len(merged) > 0:
 873                                     print "change %s could be a merge from %s into %s" % (description["change"], merged, branch)
 874                                     if not self.changeIsBranchMerge(merged, branch, int(description["change"])):
 875                                         merged = ""
 876
 877                             branch = "refs/heads/" + branch
 878                             if len(parent) > 0:
 879                                 parent = "refs/heads/" + parent
 880                             if len(merged) > 0:
 881                                 merged = "refs/heads/" + merged
 882                             self.commit(description, files, branch, branchPrefix, parent, merged)
 883                     else:
 884                         self.commit(description, files, self.branch, self.globalPrefix, self.initialParent)
 885                         self.initialParent = ""
 886                 except IOError:
 887                     print self.gitError.read()
 888                     sys.exit(1)
 889
 890         if not self.silent:
 891             print ""
 892
 893         self.gitStream.write("reset refs/tags/p4/%s\n" % self.lastChange)
 894         self.gitStream.write("from %s\n\n" % self.branch);
 895
 896
 897         self.gitStream.close()
 898         self.gitOutput.close()
 899         self.gitError.close()
 900
 901         os.popen("git-repo-config p4.depotpath %s" % self.globalPrefix).read()
 902         if len(self.initialTag) > 0:
 903             os.popen("git tag -d %s" % self.initialTag).read()
 904
 905         return True
 906
 907 class HelpFormatter(optparse.IndentedHelpFormatter):
 908     def __init__(self):
 909         optparse.IndentedHelpFormatter.__init__(self)
 910
 911     def format_description(self, description):
 912         if description:
 913             return description + "\n"
 914         else:
 915             return ""
 916
 917 def printUsage(commands):
 918     print "usage: %s <command> [options]" % sys.argv[0]
 919     print ""
 920     print "valid commands: %s" % ", ".join(commands)
 921     print ""
 922     print "Try %s <command> --help for command specific help." % sys.argv[0]
 923     print ""
 924
 925 commands = {
 926     "debug" : P4Debug(),
 927     "clean-tags" : P4CleanTags(),
 928     "submit" : P4Sync(),
 929     "sync" : GitSync()
 930 }
 931
 932 if len(sys.argv[1:]) == 0:
 933     printUsage(commands.keys())
 934     sys.exit(2)
 935
 936 cmd = ""
 937 cmdName = sys.argv[1]
 938 try:
 939     cmd = commands[cmdName]
 940 except KeyError:
 941     print "unknown command %s" % cmdName
 942     print ""
 943     printUsage(commands.keys())
 944     sys.exit(2)
 945
 946 options = cmd.options
 947 cmd.gitdir = gitdir
 948 options.append(optparse.make_option("--git-dir", dest="gitdir"))
 949
 950 parser = optparse.OptionParser(cmd.usage.replace("%prog", "%prog " + cmdName),
 951                                options,
 952                                description = cmd.description,
 953                                formatter = HelpFormatter())
 954
 955 (cmd, args) = parser.parse_args(sys.argv[2:], cmd);
 956
 957 gitdir = cmd.gitdir
 958 if len(gitdir) == 0:
 959     gitdir = ".git"
 960     if not isValidGitDir(gitdir):
 961         cdup = os.popen("git-rev-parse --show-cdup").read()[:-1]
 962         if isValidGitDir(cdup + "/" + gitdir):
 963             os.chdir(cdup)
 964
 965 if not isValidGitDir(gitdir):
 966     if isValidGitDir(gitdir + "/.git"):
 967         gitdir += "/.git"
 968     else:
 969         die("fatal: cannot locate git repository at %s" % gitdir)
 970
 971 os.environ["GIT_DIR"] = gitdir
 972
 973 if not cmd.run(args):
 974     parser.print_help()
 975