Andrew's git - gitweb.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 <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
  11import optparse, sys, os, marshal, popen2, shelve
  12import tempfile, getopt, sha, os.path, time
  13from sets import Set;
  14
  15gitdir = os.environ.get("GIT_DIR", "")
  16
  17def 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
  32def p4Cmd(cmd):
  33    list = p4CmdList(cmd)
  34    result = {}
  35    for entry in list:
  36        result.update(entry)
  37    return result;
  38
  39def die(msg):
  40    sys.stderr.write(msg + "\n")
  41    sys.exit(1)
  42
  43def currentGitBranch():
  44    return os.popen("git-name-rev HEAD").read().split(" ")[1][:-1]
  45
  46def 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
  51def system(cmd):
  52    if os.system(cmd) != 0:
  53        die("command failed: %s" % cmd)
  54
  55def 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
  67def 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
  86def gitBranchExists(branch):
  87    return os.system("git-rev-parse %s 2>/dev/null >/dev/null") == 0
  88
  89class Command:
  90    def __init__(self):
  91        self.usage = "usage: %prog [options]"
  92
  93class 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
 105class 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
 143class 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
 354class 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 = "p4"
 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        self.branch = "refs/heads/" + self.branch
 710        self.globalPrefix = self.previousDepotPath = os.popen("git-repo-config --get p4.depotpath").read()
 711        if len(self.globalPrefix) != 0:
 712            self.globalPrefix = self.globalPrefix[:-1]
 713
 714        if len(args) == 0 and len(self.globalPrefix) != 0:
 715            if not self.silent:
 716                print "[using previously specified depot path %s]" % self.globalPrefix
 717        elif len(args) != 1:
 718            return False
 719        else:
 720            if len(self.globalPrefix) != 0 and self.globalPrefix != args[0]:
 721                print "previous import used depot path %s and now %s was specified. this doesn't work!" % (self.globalPrefix, args[0])
 722                sys.exit(1)
 723            self.globalPrefix = args[0]
 724
 725        self.changeRange = ""
 726        self.revision = ""
 727        self.users = {}
 728        self.initialParent = ""
 729        self.lastChange = 0
 730        self.initialTag = ""
 731
 732        if self.globalPrefix.find("@") != -1:
 733            atIdx = self.globalPrefix.index("@")
 734            self.changeRange = self.globalPrefix[atIdx:]
 735            if self.changeRange == "@all":
 736                self.changeRange = ""
 737            elif self.changeRange.find(",") == -1:
 738                self.revision = self.changeRange
 739                self.changeRange = ""
 740            self.globalPrefix = self.globalPrefix[0:atIdx]
 741        elif self.globalPrefix.find("#") != -1:
 742            hashIdx = self.globalPrefix.index("#")
 743            self.revision = self.globalPrefix[hashIdx:]
 744            self.globalPrefix = self.globalPrefix[0:hashIdx]
 745        elif len(self.previousDepotPath) == 0:
 746            self.revision = "#head"
 747
 748        if self.globalPrefix.endswith("..."):
 749            self.globalPrefix = self.globalPrefix[:-3]
 750
 751        if not self.globalPrefix.endswith("/"):
 752            self.globalPrefix += "/"
 753
 754        self.getUserMap()
 755
 756        if len(self.changeRange) == 0:
 757            try:
 758                sout, sin, serr = popen2.popen3("git-name-rev --tags `git-rev-parse %s`" % self.branch)
 759                output = sout.read()
 760                if output.endswith("\n"):
 761                    output = output[:-1]
 762                tagIdx = output.index(" tags/p4/")
 763                caretIdx = output.find("^")
 764                endPos = len(output)
 765                if caretIdx != -1:
 766                    endPos = caretIdx
 767                self.rev = int(output[tagIdx + 9 : endPos]) + 1
 768                self.changeRange = "@%s,#head" % self.rev
 769                self.initialParent = os.popen("git-rev-parse %s" % self.branch).read()[:-1]
 770                self.initialTag = "p4/%s" % (int(self.rev) - 1)
 771            except:
 772                pass
 773
 774        self.tz = - time.timezone / 36
 775        tzsign = ("%s" % self.tz)[0]
 776        if tzsign != '+' and tzsign != '-':
 777            self.tz = "+" + ("%s" % self.tz)
 778
 779        self.gitOutput, self.gitStream, self.gitError = popen2.popen3("git-fast-import")
 780
 781        if len(self.revision) > 0:
 782            print "Doing initial import of %s from revision %s" % (self.globalPrefix, self.revision)
 783
 784            details = { "user" : "git perforce import user", "time" : int(time.time()) }
 785            details["desc"] = "Initial import of %s from the state at revision %s" % (self.globalPrefix, self.revision)
 786            details["change"] = self.revision
 787            newestRevision = 0
 788
 789            fileCnt = 0
 790            for info in p4CmdList("files %s...%s" % (self.globalPrefix, self.revision)):
 791                change = int(info["change"])
 792                if change > newestRevision:
 793                    newestRevision = change
 794
 795                if info["action"] == "delete":
 796                    fileCnt = fileCnt + 1
 797                    continue
 798
 799                for prop in [ "depotFile", "rev", "action", "type" ]:
 800                    details["%s%s" % (prop, fileCnt)] = info[prop]
 801
 802                fileCnt = fileCnt + 1
 803
 804            details["change"] = newestRevision
 805
 806            try:
 807                self.commit(details, self.extractFilesFromCommit(details), self.branch, self.globalPrefix)
 808            except IOError:
 809                print self.gitError.read()
 810
 811        else:
 812            changes = []
 813
 814            if len(self.changesFile) > 0:
 815                output = open(self.changesFile).readlines()
 816                changeSet = Set()
 817                for line in output:
 818                    changeSet.add(int(line))
 819
 820                for change in changeSet:
 821                    changes.append(change)
 822
 823                changes.sort()
 824            else:
 825                output = os.popen("p4 changes %s...%s" % (self.globalPrefix, self.changeRange)).readlines()
 826
 827                for line in output:
 828                    changeNum = line.split(" ")[1]
 829                    changes.append(changeNum)
 830
 831                changes.reverse()
 832
 833            if len(changes) == 0:
 834                if not self.silent:
 835                    print "no changes to import!"
 836                sys.exit(1)
 837
 838            cnt = 1
 839            for change in changes:
 840                description = p4Cmd("describe %s" % change)
 841
 842                if not self.silent:
 843                    sys.stdout.write("\rimporting revision %s (%s%%)" % (change, cnt * 100 / len(changes)))
 844                    sys.stdout.flush()
 845                cnt = cnt + 1
 846
 847                try:
 848                    files = self.extractFilesFromCommit(description)
 849                    if self.detectBranches:
 850                        for branch in self.branchesForCommit(files):
 851                            self.knownBranches.add(branch)
 852                            branchPrefix = self.globalPrefix + branch + "/"
 853
 854                            filesForCommit = self.extractFilesInCommitToBranch(files, branchPrefix)
 855
 856                            merged = ""
 857                            parent = ""
 858                            ########### remove cnt!!!
 859                            if branch not in self.createdBranches and cnt > 2:
 860                                self.createdBranches.add(branch)
 861                                parent = self.findBranchParent(branchPrefix, files)
 862                                if parent == branch:
 863                                    parent = ""
 864            #                    elif len(parent) > 0:
 865            #                        print "%s branched off of %s" % (branch, parent)
 866
 867                            if len(parent) == 0:
 868                                merged = self.findBranchSourceHeuristic(filesForCommit, branch, branchPrefix)
 869                                if len(merged) > 0:
 870                                    print "change %s could be a merge from %s into %s" % (description["change"], merged, branch)
 871                                    if not self.changeIsBranchMerge(merged, branch, int(description["change"])):
 872                                        merged = ""
 873
 874                            branch = "refs/heads/" + branch
 875                            if len(parent) > 0:
 876                                parent = "refs/heads/" + parent
 877                            if len(merged) > 0:
 878                                merged = "refs/heads/" + merged
 879                            self.commit(description, files, branch, branchPrefix, parent, merged)
 880                    else:
 881                        self.commit(description, files, self.branch, self.globalPrefix, self.initialParent)
 882                        self.initialParent = ""
 883                except IOError:
 884                    print self.gitError.read()
 885                    sys.exit(1)
 886
 887        if not self.silent:
 888            print ""
 889
 890        self.gitStream.write("reset refs/tags/p4/%s\n" % self.lastChange)
 891        self.gitStream.write("from %s\n\n" % self.branch);
 892
 893
 894        self.gitStream.close()
 895        self.gitOutput.close()
 896        self.gitError.close()
 897
 898        os.popen("git-repo-config p4.depotpath %s" % self.globalPrefix).read()
 899        if len(self.initialTag) > 0:
 900            os.popen("git tag -d %s" % self.initialTag).read()
 901
 902        return True
 903
 904class HelpFormatter(optparse.IndentedHelpFormatter):
 905    def __init__(self):
 906        optparse.IndentedHelpFormatter.__init__(self)
 907
 908    def format_description(self, description):
 909        if description:
 910            return description + "\n"
 911        else:
 912            return ""
 913
 914def printUsage(commands):
 915    print "usage: %s <command> [options]" % sys.argv[0]
 916    print ""
 917    print "valid commands: %s" % ", ".join(commands)
 918    print ""
 919    print "Try %s <command> --help for command specific help." % sys.argv[0]
 920    print ""
 921
 922commands = {
 923    "debug" : P4Debug(),
 924    "clean-tags" : P4CleanTags(),
 925    "submit" : P4Sync(),
 926    "sync" : GitSync()
 927}
 928
 929if len(sys.argv[1:]) == 0:
 930    printUsage(commands.keys())
 931    sys.exit(2)
 932
 933cmd = ""
 934cmdName = sys.argv[1]
 935try:
 936    cmd = commands[cmdName]
 937except KeyError:
 938    print "unknown command %s" % cmdName
 939    print ""
 940    printUsage(commands.keys())
 941    sys.exit(2)
 942
 943options = cmd.options
 944cmd.gitdir = gitdir
 945options.append(optparse.make_option("--git-dir", dest="gitdir"))
 946
 947parser = optparse.OptionParser(cmd.usage.replace("%prog", "%prog " + cmdName),
 948                               options,
 949                               description = cmd.description,
 950                               formatter = HelpFormatter())
 951
 952(cmd, args) = parser.parse_args(sys.argv[2:], cmd);
 953
 954gitdir = cmd.gitdir
 955if len(gitdir) == 0:
 956    gitdir = ".git"
 957    if not isValidGitDir(gitdir):
 958        cdup = os.popen("git-rev-parse --show-cdup").read()[:-1]
 959        if isValidGitDir(cdup + "/" + gitdir):
 960            os.chdir(cdup)
 961
 962if not isValidGitDir(gitdir):
 963    if isValidGitDir(gitdir + "/.git"):
 964        gitdir += "/.git"
 965    else:
 966        die("fatal: cannot locate git repository at %s" % gitdir)
 967
 968os.environ["GIT_DIR"] = gitdir
 969
 970if not cmd.run(args):
 971    parser.print_help()
 972