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 p4Where(depotPath):
  40    if not depotPath.endswith("/"):
  41        depotPath += "/"
  42    output = p4Cmd("where %s..." % depotPath)
  43    clientPath = ""
  44    if "path" in output:
  45        clientPath = output.get("path")
  46    elif "data" in output:
  47        data = output.get("data")
  48        lastSpace = data.rfind(" ")
  49        clientPath = data[lastSpace + 1:]
  50
  51    if clientPath.endswith("..."):
  52        clientPath = clientPath[:-3]
  53    return clientPath
  54
  55def die(msg):
  56    sys.stderr.write(msg + "\n")
  57    sys.exit(1)
  58
  59def currentGitBranch():
  60    return os.popen("git-name-rev HEAD").read().split(" ")[1][:-1]
  61
  62def isValidGitDir(path):
  63    if os.path.exists(path + "/HEAD") and os.path.exists(path + "/refs") and os.path.exists(path + "/objects"):
  64        return True;
  65    return False
  66
  67def system(cmd):
  68    if os.system(cmd) != 0:
  69        die("command failed: %s" % cmd)
  70
  71def extractLogMessageFromGitCommit(commit):
  72    logMessage = ""
  73    foundTitle = False
  74    for log in os.popen("git-cat-file commit %s" % commit).readlines():
  75       if not foundTitle:
  76           if len(log) == 1:
  77               foundTitle = 1
  78           continue
  79
  80       logMessage += log
  81    return logMessage
  82
  83def extractDepotPathAndChangeFromGitLog(log):
  84    values = {}
  85    for line in log.split("\n"):
  86        line = line.strip()
  87        if line.startswith("[git-p4:") and line.endswith("]"):
  88            line = line[8:-1].strip()
  89            for assignment in line.split(":"):
  90                variable = assignment.strip()
  91                value = ""
  92                equalPos = assignment.find("=")
  93                if equalPos != -1:
  94                    variable = assignment[:equalPos].strip()
  95                    value = assignment[equalPos + 1:].strip()
  96                    if value.startswith("\"") and value.endswith("\""):
  97                        value = value[1:-1]
  98                values[variable] = value
  99
 100    return values.get("depot-path"), values.get("change")
 101
 102def gitBranchExists(branch):
 103    if os.system("git-rev-parse %s 2>/dev/null >/dev/null" % branch) == 0:
 104        return True
 105    return False
 106
 107class Command:
 108    def __init__(self):
 109        self.usage = "usage: %prog [options]"
 110
 111class P4Debug(Command):
 112    def __init__(self):
 113        Command.__init__(self)
 114        self.options = [
 115        ]
 116        self.description = "A tool to debug the output of p4 -G."
 117
 118    def run(self, args):
 119        for output in p4CmdList(" ".join(args)):
 120            print output
 121        return True
 122
 123class P4CleanTags(Command):
 124    def __init__(self):
 125        Command.__init__(self)
 126        self.options = [
 127#                optparse.make_option("--branch", dest="branch", default="refs/heads/master")
 128        ]
 129        self.description = "A tool to remove stale unused tags from incremental perforce imports."
 130    def run(self, args):
 131        branch = currentGitBranch()
 132        print "Cleaning out stale p4 import tags..."
 133        sout, sin, serr = popen2.popen3("git-name-rev --tags `git-rev-parse %s`" % branch)
 134        output = sout.read()
 135        try:
 136            tagIdx = output.index(" tags/p4/")
 137        except:
 138            print "Cannot find any p4/* tag. Nothing to do."
 139            sys.exit(0)
 140
 141        try:
 142            caretIdx = output.index("^")
 143        except:
 144            caretIdx = len(output) - 1
 145        rev = int(output[tagIdx + 9 : caretIdx])
 146
 147        allTags = os.popen("git tag -l p4/").readlines()
 148        for i in range(len(allTags)):
 149            allTags[i] = int(allTags[i][3:-1])
 150
 151        allTags.sort()
 152
 153        allTags.remove(rev)
 154
 155        for rev in allTags:
 156            print os.popen("git tag -d p4/%s" % rev).read()
 157
 158        print "%s tags removed." % len(allTags)
 159        return True
 160
 161class P4Sync(Command):
 162    def __init__(self):
 163        Command.__init__(self)
 164        self.options = [
 165                optparse.make_option("--continue", action="store_false", dest="firstTime"),
 166                optparse.make_option("--origin", dest="origin"),
 167                optparse.make_option("--reset", action="store_true", dest="reset"),
 168                optparse.make_option("--master", dest="master"),
 169                optparse.make_option("--log-substitutions", dest="substFile"),
 170                optparse.make_option("--noninteractive", action="store_false"),
 171                optparse.make_option("--dry-run", action="store_true"),
 172                optparse.make_option("--apply-as-patch", action="store_true", dest="applyAsPatch")
 173        ]
 174        self.description = "Submit changes from git to the perforce depot."
 175        self.firstTime = True
 176        self.reset = False
 177        self.interactive = True
 178        self.dryRun = False
 179        self.substFile = ""
 180        self.firstTime = True
 181        self.origin = ""
 182        self.master = ""
 183        self.applyAsPatch = True
 184
 185        self.logSubstitutions = {}
 186        self.logSubstitutions["<enter description here>"] = "%log%"
 187        self.logSubstitutions["\tDetails:"] = "\tDetails:  %log%"
 188
 189    def check(self):
 190        if len(p4CmdList("opened ...")) > 0:
 191            die("You have files opened with perforce! Close them before starting the sync.")
 192
 193    def start(self):
 194        if len(self.config) > 0 and not self.reset:
 195            die("Cannot start sync. Previous sync config found at %s" % self.configFile)
 196
 197        commits = []
 198        for line in os.popen("git-rev-list --no-merges %s..%s" % (self.origin, self.master)).readlines():
 199            commits.append(line[:-1])
 200        commits.reverse()
 201
 202        self.config["commits"] = commits
 203
 204        if not self.applyAsPatch:
 205            print "Creating temporary p4-sync branch from %s ..." % self.origin
 206            system("git checkout -f -b p4-sync %s" % self.origin)
 207
 208    def prepareLogMessage(self, template, message):
 209        result = ""
 210
 211        for line in template.split("\n"):
 212            if line.startswith("#"):
 213                result += line + "\n"
 214                continue
 215
 216            substituted = False
 217            for key in self.logSubstitutions.keys():
 218                if line.find(key) != -1:
 219                    value = self.logSubstitutions[key]
 220                    value = value.replace("%log%", message)
 221                    if value != "@remove@":
 222                        result += line.replace(key, value) + "\n"
 223                    substituted = True
 224                    break
 225
 226            if not substituted:
 227                result += line + "\n"
 228
 229        return result
 230
 231    def apply(self, id):
 232        print "Applying %s" % (os.popen("git-log --max-count=1 --pretty=oneline %s" % id).read())
 233        diff = os.popen("git diff-tree -r --name-status \"%s^\" \"%s\"" % (id, id)).readlines()
 234        filesToAdd = set()
 235        filesToDelete = set()
 236        for line in diff:
 237            modifier = line[0]
 238            path = line[1:].strip()
 239            if modifier == "M":
 240                system("p4 edit %s" % path)
 241            elif modifier == "A":
 242                filesToAdd.add(path)
 243                if path in filesToDelete:
 244                    filesToDelete.remove(path)
 245            elif modifier == "D":
 246                filesToDelete.add(path)
 247                if path in filesToAdd:
 248                    filesToAdd.remove(path)
 249            else:
 250                die("unknown modifier %s for %s" % (modifier, path))
 251
 252        if self.applyAsPatch:
 253            system("git-diff-tree -p --diff-filter=ACMRTUXB \"%s^\" \"%s\" | patch -p1" % (id, id))
 254        else:
 255            system("git-diff-files --name-only -z | git-update-index --remove -z --stdin")
 256            system("git cherry-pick --no-commit \"%s\"" % id)
 257
 258        for f in filesToAdd:
 259            system("p4 add %s" % f)
 260        for f in filesToDelete:
 261            system("p4 revert %s" % f)
 262            system("p4 delete %s" % f)
 263
 264        logMessage = extractLogMessageFromGitCommit(id)
 265        logMessage = logMessage.replace("\n", "\n\t")
 266        logMessage = logMessage[:-1]
 267
 268        template = os.popen("p4 change -o").read()
 269
 270        if self.interactive:
 271            submitTemplate = self.prepareLogMessage(template, logMessage)
 272            diff = os.popen("p4 diff -du ...").read()
 273
 274            for newFile in filesToAdd:
 275                diff += "==== new file ====\n"
 276                diff += "--- /dev/null\n"
 277                diff += "+++ %s\n" % newFile
 278                f = open(newFile, "r")
 279                for line in f.readlines():
 280                    diff += "+" + line
 281                f.close()
 282
 283            separatorLine = "######## everything below this line is just the diff #######\n"
 284
 285            response = "e"
 286            firstIteration = True
 287            while response == "e":
 288                if not firstIteration:
 289                    response = raw_input("Do you want to submit this change (y/e/n)? ")
 290                firstIteration = False
 291                if response == "e":
 292                    [handle, fileName] = tempfile.mkstemp()
 293                    tmpFile = os.fdopen(handle, "w+")
 294                    tmpFile.write(submitTemplate + separatorLine + diff)
 295                    tmpFile.close()
 296                    editor = os.environ.get("EDITOR", "vi")
 297                    system(editor + " " + fileName)
 298                    tmpFile = open(fileName, "r")
 299                    message = tmpFile.read()
 300                    tmpFile.close()
 301                    os.remove(fileName)
 302                    submitTemplate = message[:message.index(separatorLine)]
 303
 304            if response == "y" or response == "yes":
 305               if self.dryRun:
 306                   print submitTemplate
 307                   raw_input("Press return to continue...")
 308               else:
 309                    pipe = os.popen("p4 submit -i", "w")
 310                    pipe.write(submitTemplate)
 311                    pipe.close()
 312            else:
 313                print "Not submitting!"
 314                self.interactive = False
 315        else:
 316            fileName = "submit.txt"
 317            file = open(fileName, "w+")
 318            file.write(self.prepareLogMessage(template, logMessage))
 319            file.close()
 320            print "Perforce submit template written as %s. Please review/edit and then use p4 submit -i < %s to submit directly!" % (fileName, fileName)
 321
 322    def run(self, args):
 323        global gitdir
 324        # make gitdir absolute so we can cd out into the perforce checkout
 325        gitdir = os.path.abspath(gitdir)
 326        os.environ["GIT_DIR"] = gitdir
 327        depotPath = ""
 328        if gitBranchExists("p4"):
 329            [depotPath, dummy] = extractDepotPathAndChangeFromGitLog(extractLogMessageFromGitCommit("p4"))
 330        if len(depotPath) == 0 and gitBranchExists("origin"):
 331            [depotPath, dummy] = extractDepotPathAndChangeFromGitLog(extractLogMessageFromGitCommit("origin"))
 332
 333        if len(depotPath) == 0:
 334            print "Internal error: cannot locate perforce depot path from existing branches"
 335            sys.exit(128)
 336
 337        clientPath = p4Where(depotPath)
 338
 339        if len(clientPath) == 0:
 340            print "Error: Cannot locate perforce checkout of %s in client view" % depotPath
 341            sys.exit(128)
 342
 343        print "Perforce checkout for depot path %s located at %s" % (depotPath, clientPath)
 344        os.chdir(clientPath)
 345        response = raw_input("Do you want to sync %s with p4 sync? (y/n) " % clientPath)
 346        if response == "y" or response == "yes":
 347            system("p4 sync ...")
 348
 349        if len(self.origin) == 0:
 350            if gitBranchExists("p4"):
 351                self.origin = "p4"
 352            else:
 353                self.origin = "origin"
 354
 355        if self.reset:
 356            self.firstTime = True
 357
 358        if len(self.substFile) > 0:
 359            for line in open(self.substFile, "r").readlines():
 360                tokens = line[:-1].split("=")
 361                self.logSubstitutions[tokens[0]] = tokens[1]
 362
 363        if len(self.master) == 0:
 364            self.master = currentGitBranch()
 365            if len(self.master) == 0 or not os.path.exists("%s/refs/heads/%s" % (gitdir, self.master)):
 366                die("Detecting current git branch failed!")
 367
 368        self.check()
 369        self.configFile = gitdir + "/p4-git-sync.cfg"
 370        self.config = shelve.open(self.configFile, writeback=True)
 371
 372        if self.firstTime:
 373            self.start()
 374
 375        commits = self.config.get("commits", [])
 376
 377        while len(commits) > 0:
 378            self.firstTime = False
 379            commit = commits[0]
 380            commits = commits[1:]
 381            self.config["commits"] = commits
 382            self.apply(commit)
 383            if not self.interactive:
 384                break
 385
 386        self.config.close()
 387
 388        if len(commits) == 0:
 389            if self.firstTime:
 390                print "No changes found to apply between %s and current HEAD" % self.origin
 391            else:
 392                print "All changes applied!"
 393                if not self.applyAsPatch:
 394                    print "Deleting temporary p4-sync branch and going back to %s" % self.master
 395                    system("git checkout %s" % self.master)
 396                    system("git branch -D p4-sync")
 397                    print "Cleaning out your perforce checkout by doing p4 edit ... ; p4 revert ..."
 398                    system("p4 edit ... >/dev/null")
 399                    system("p4 revert ... >/dev/null")
 400            os.remove(self.configFile)
 401
 402        return True
 403
 404class GitSync(Command):
 405    def __init__(self):
 406        Command.__init__(self)
 407        self.options = [
 408                optparse.make_option("--branch", dest="branch"),
 409                optparse.make_option("--detect-branches", dest="detectBranches", action="store_true"),
 410                optparse.make_option("--changesfile", dest="changesFile"),
 411                optparse.make_option("--silent", dest="silent", action="store_true"),
 412                optparse.make_option("--known-branches", dest="knownBranches"),
 413                optparse.make_option("--cache", dest="doCache", action="store_true"),
 414                optparse.make_option("--command-cache", dest="commandCache", action="store_true")
 415        ]
 416        self.description = """Imports from Perforce into a git repository.\n
 417    example:
 418    //depot/my/project/ -- to import the current head
 419    //depot/my/project/@all -- to import everything
 420    //depot/my/project/@1,6 -- to import only from revision 1 to 6
 421
 422    (a ... is not needed in the path p4 specification, it's added implicitly)"""
 423
 424        self.usage += " //depot/path[@revRange]"
 425
 426        self.dataCache = False
 427        self.commandCache = False
 428        self.silent = False
 429        self.knownBranches = Set()
 430        self.createdBranches = Set()
 431        self.committedChanges = Set()
 432        self.branch = ""
 433        self.detectBranches = False
 434        self.changesFile = ""
 435
 436    def p4File(self, depotPath):
 437        return os.popen("p4 print -q \"%s\"" % depotPath, "rb").read()
 438
 439    def extractFilesFromCommit(self, commit):
 440        files = []
 441        fnum = 0
 442        while commit.has_key("depotFile%s" % fnum):
 443            path =  commit["depotFile%s" % fnum]
 444            if not path.startswith(self.globalPrefix):
 445    #            if not self.silent:
 446    #                print "\nchanged files: ignoring path %s outside of %s in change %s" % (path, self.globalPrefix, change)
 447                fnum = fnum + 1
 448                continue
 449
 450            file = {}
 451            file["path"] = path
 452            file["rev"] = commit["rev%s" % fnum]
 453            file["action"] = commit["action%s" % fnum]
 454            file["type"] = commit["type%s" % fnum]
 455            files.append(file)
 456            fnum = fnum + 1
 457        return files
 458
 459    def isSubPathOf(self, first, second):
 460        if not first.startswith(second):
 461            return False
 462        if first == second:
 463            return True
 464        return first[len(second)] == "/"
 465
 466    def branchesForCommit(self, files):
 467        branches = Set()
 468
 469        for file in files:
 470            relativePath = file["path"][len(self.globalPrefix):]
 471            # strip off the filename
 472            relativePath = relativePath[0:relativePath.rfind("/")]
 473
 474    #        if len(branches) == 0:
 475    #            branches.add(relativePath)
 476    #            knownBranches.add(relativePath)
 477    #            continue
 478
 479            ###### this needs more testing :)
 480            knownBranch = False
 481            for branch in branches:
 482                if relativePath == branch:
 483                    knownBranch = True
 484                    break
 485    #            if relativePath.startswith(branch):
 486                if self.isSubPathOf(relativePath, branch):
 487                    knownBranch = True
 488                    break
 489    #            if branch.startswith(relativePath):
 490                if self.isSubPathOf(branch, relativePath):
 491                    branches.remove(branch)
 492                    break
 493
 494            if knownBranch:
 495                continue
 496
 497            for branch in knownBranches:
 498                #if relativePath.startswith(branch):
 499                if self.isSubPathOf(relativePath, branch):
 500                    if len(branches) == 0:
 501                        relativePath = branch
 502                    else:
 503                        knownBranch = True
 504                    break
 505
 506            if knownBranch:
 507                continue
 508
 509            branches.add(relativePath)
 510            self.knownBranches.add(relativePath)
 511
 512        return branches
 513
 514    def findBranchParent(self, branchPrefix, files):
 515        for file in files:
 516            path = file["path"]
 517            if not path.startswith(branchPrefix):
 518                continue
 519            action = file["action"]
 520            if action != "integrate" and action != "branch":
 521                continue
 522            rev = file["rev"]
 523            depotPath = path + "#" + rev
 524
 525            log = p4CmdList("filelog \"%s\"" % depotPath)
 526            if len(log) != 1:
 527                print "eek! I got confused by the filelog of %s" % depotPath
 528                sys.exit(1);
 529
 530            log = log[0]
 531            if log["action0"] != action:
 532                print "eek! wrong action in filelog for %s : found %s, expected %s" % (depotPath, log["action0"], action)
 533                sys.exit(1);
 534
 535            branchAction = log["how0,0"]
 536    #        if branchAction == "branch into" or branchAction == "ignored":
 537    #            continue # ignore for branching
 538
 539            if not branchAction.endswith(" from"):
 540                continue # ignore for branching
 541    #            print "eek! file %s was not branched from but instead: %s" % (depotPath, branchAction)
 542    #            sys.exit(1);
 543
 544            source = log["file0,0"]
 545            if source.startswith(branchPrefix):
 546                continue
 547
 548            lastSourceRev = log["erev0,0"]
 549
 550            sourceLog = p4CmdList("filelog -m 1 \"%s%s\"" % (source, lastSourceRev))
 551            if len(sourceLog) != 1:
 552                print "eek! I got confused by the source filelog of %s%s" % (source, lastSourceRev)
 553                sys.exit(1);
 554            sourceLog = sourceLog[0]
 555
 556            relPath = source[len(self.globalPrefix):]
 557            # strip off the filename
 558            relPath = relPath[0:relPath.rfind("/")]
 559
 560            for branch in self.knownBranches:
 561                if self.isSubPathOf(relPath, branch):
 562    #                print "determined parent branch branch %s due to change in file %s" % (branch, source)
 563                    return branch
 564    #            else:
 565    #                print "%s is not a subpath of branch %s" % (relPath, branch)
 566
 567        return ""
 568
 569    def commit(self, details, files, branch, branchPrefix, parent = "", merged = ""):
 570        epoch = details["time"]
 571        author = details["user"]
 572
 573        self.gitStream.write("commit %s\n" % branch)
 574    #    gitStream.write("mark :%s\n" % details["change"])
 575        self.committedChanges.add(int(details["change"]))
 576        committer = ""
 577        if author in self.users:
 578            committer = "%s %s %s" % (self.users[author], epoch, self.tz)
 579        else:
 580            committer = "%s <a@b> %s %s" % (author, epoch, self.tz)
 581
 582        self.gitStream.write("committer %s\n" % committer)
 583
 584        self.gitStream.write("data <<EOT\n")
 585        self.gitStream.write(details["desc"])
 586        self.gitStream.write("\n[git-p4: depot-path = \"%s\": change = %s]\n" % (branchPrefix, details["change"]))
 587        self.gitStream.write("EOT\n\n")
 588
 589        if len(parent) > 0:
 590            self.gitStream.write("from %s\n" % parent)
 591
 592        if len(merged) > 0:
 593            self.gitStream.write("merge %s\n" % merged)
 594
 595        for file in files:
 596            path = file["path"]
 597            if not path.startswith(branchPrefix):
 598    #            if not silent:
 599    #                print "\nchanged files: ignoring path %s outside of branch prefix %s in change %s" % (path, branchPrefix, details["change"])
 600                continue
 601            rev = file["rev"]
 602            depotPath = path + "#" + rev
 603            relPath = path[len(branchPrefix):]
 604            action = file["action"]
 605
 606            if file["type"] == "apple":
 607                print "\nfile %s is a strange apple file that forks. Ignoring!" % path
 608                continue
 609
 610            if action == "delete":
 611                self.gitStream.write("D %s\n" % relPath)
 612            else:
 613                mode = 644
 614                if file["type"].startswith("x"):
 615                    mode = 755
 616
 617                data = self.p4File(depotPath)
 618
 619                self.gitStream.write("M %s inline %s\n" % (mode, relPath))
 620                self.gitStream.write("data %s\n" % len(data))
 621                self.gitStream.write(data)
 622                self.gitStream.write("\n")
 623
 624        self.gitStream.write("\n")
 625
 626        self.lastChange = int(details["change"])
 627
 628    def extractFilesInCommitToBranch(self, files, branchPrefix):
 629        newFiles = []
 630
 631        for file in files:
 632            path = file["path"]
 633            if path.startswith(branchPrefix):
 634                newFiles.append(file)
 635
 636        return newFiles
 637
 638    def findBranchSourceHeuristic(self, files, branch, branchPrefix):
 639        for file in files:
 640            action = file["action"]
 641            if action != "integrate" and action != "branch":
 642                continue
 643            path = file["path"]
 644            rev = file["rev"]
 645            depotPath = path + "#" + rev
 646
 647            log = p4CmdList("filelog \"%s\"" % depotPath)
 648            if len(log) != 1:
 649                print "eek! I got confused by the filelog of %s" % depotPath
 650                sys.exit(1);
 651
 652            log = log[0]
 653            if log["action0"] != action:
 654                print "eek! wrong action in filelog for %s : found %s, expected %s" % (depotPath, log["action0"], action)
 655                sys.exit(1);
 656
 657            branchAction = log["how0,0"]
 658
 659            if not branchAction.endswith(" from"):
 660                continue # ignore for branching
 661    #            print "eek! file %s was not branched from but instead: %s" % (depotPath, branchAction)
 662    #            sys.exit(1);
 663
 664            source = log["file0,0"]
 665            if source.startswith(branchPrefix):
 666                continue
 667
 668            lastSourceRev = log["erev0,0"]
 669
 670            sourceLog = p4CmdList("filelog -m 1 \"%s%s\"" % (source, lastSourceRev))
 671            if len(sourceLog) != 1:
 672                print "eek! I got confused by the source filelog of %s%s" % (source, lastSourceRev)
 673                sys.exit(1);
 674            sourceLog = sourceLog[0]
 675
 676            relPath = source[len(self.globalPrefix):]
 677            # strip off the filename
 678            relPath = relPath[0:relPath.rfind("/")]
 679
 680            for candidate in self.knownBranches:
 681                if self.isSubPathOf(relPath, candidate) and candidate != branch:
 682                    return candidate
 683
 684        return ""
 685
 686    def changeIsBranchMerge(self, sourceBranch, destinationBranch, change):
 687        sourceFiles = {}
 688        for file in p4CmdList("files %s...@%s" % (self.globalPrefix + sourceBranch + "/", change)):
 689            if file["action"] == "delete":
 690                continue
 691            sourceFiles[file["depotFile"]] = file
 692
 693        destinationFiles = {}
 694        for file in p4CmdList("files %s...@%s" % (self.globalPrefix + destinationBranch + "/", change)):
 695            destinationFiles[file["depotFile"]] = file
 696
 697        for fileName in sourceFiles.keys():
 698            integrations = []
 699            deleted = False
 700            integrationCount = 0
 701            for integration in p4CmdList("integrated \"%s\"" % fileName):
 702                toFile = integration["fromFile"] # yes, it's true, it's fromFile
 703                if not toFile in destinationFiles:
 704                    continue
 705                destFile = destinationFiles[toFile]
 706                if destFile["action"] == "delete":
 707    #                print "file %s has been deleted in %s" % (fileName, toFile)
 708                    deleted = True
 709                    break
 710                integrationCount += 1
 711                if integration["how"] == "branch from":
 712                    continue
 713
 714                if int(integration["change"]) == change:
 715                    integrations.append(integration)
 716                    continue
 717                if int(integration["change"]) > change:
 718                    continue
 719
 720                destRev = int(destFile["rev"])
 721
 722                startRev = integration["startFromRev"][1:]
 723                if startRev == "none":
 724                    startRev = 0
 725                else:
 726                    startRev = int(startRev)
 727
 728                endRev = integration["endFromRev"][1:]
 729                if endRev == "none":
 730                    endRev = 0
 731                else:
 732                    endRev = int(endRev)
 733
 734                initialBranch = (destRev == 1 and integration["how"] != "branch into")
 735                inRange = (destRev >= startRev and destRev <= endRev)
 736                newer = (destRev > startRev and destRev > endRev)
 737
 738                if initialBranch or inRange or newer:
 739                    integrations.append(integration)
 740
 741            if deleted:
 742                continue
 743
 744            if len(integrations) == 0 and integrationCount > 1:
 745                print "file %s was not integrated from %s into %s" % (fileName, sourceBranch, destinationBranch)
 746                return False
 747
 748        return True
 749
 750    def getUserMap(self):
 751        self.users = {}
 752
 753        for output in p4CmdList("users"):
 754            if not output.has_key("User"):
 755                continue
 756            self.users[output["User"]] = output["FullName"] + " <" + output["Email"] + ">"
 757
 758    def run(self, args):
 759        self.globalPrefix = ""
 760        self.changeRange = ""
 761        self.initialParent = ""
 762        self.tagLastChange = True
 763
 764        if len(self.branch) == 0:
 765            self.branch = "p4"
 766
 767        if len(args) == 0:
 768            if not gitBranchExists(self.branch) and gitBranchExists("origin"):
 769                if not self.silent:
 770                    print "Creating %s branch in git repository based on origin" % self.branch
 771                system("git branch %s origin" % self.branch)
 772
 773            [self.previousDepotPath, p4Change] = extractDepotPathAndChangeFromGitLog(extractLogMessageFromGitCommit(self.branch))
 774            if len(self.previousDepotPath) > 0 and len(p4Change) > 0:
 775                p4Change = int(p4Change) + 1
 776                self.globalPrefix = self.previousDepotPath
 777                self.changeRange = "@%s,#head" % p4Change
 778                self.initialParent = self.branch
 779                self.tagLastChange = False
 780                if not self.silent:
 781                    print "Performing incremental import into %s git branch" % self.branch
 782
 783        self.branch = "refs/heads/" + self.branch
 784
 785        if len(self.globalPrefix) == 0:
 786            self.globalPrefix = self.previousDepotPath = os.popen("git-repo-config --get p4.depotpath").read()
 787
 788        if len(self.globalPrefix) != 0:
 789            self.globalPrefix = self.globalPrefix[:-1]
 790
 791        if len(args) == 0 and len(self.globalPrefix) != 0:
 792            if not self.silent:
 793                print "Depot path: %s" % self.globalPrefix
 794        elif len(args) != 1:
 795            return False
 796        else:
 797            if len(self.globalPrefix) != 0 and self.globalPrefix != args[0]:
 798                print "previous import used depot path %s and now %s was specified. this doesn't work!" % (self.globalPrefix, args[0])
 799                sys.exit(1)
 800            self.globalPrefix = args[0]
 801
 802        self.revision = ""
 803        self.users = {}
 804        self.lastChange = 0
 805        self.initialTag = ""
 806
 807        if self.globalPrefix.find("@") != -1:
 808            atIdx = self.globalPrefix.index("@")
 809            self.changeRange = self.globalPrefix[atIdx:]
 810            if self.changeRange == "@all":
 811                self.changeRange = ""
 812            elif self.changeRange.find(",") == -1:
 813                self.revision = self.changeRange
 814                self.changeRange = ""
 815            self.globalPrefix = self.globalPrefix[0:atIdx]
 816        elif self.globalPrefix.find("#") != -1:
 817            hashIdx = self.globalPrefix.index("#")
 818            self.revision = self.globalPrefix[hashIdx:]
 819            self.globalPrefix = self.globalPrefix[0:hashIdx]
 820        elif len(self.previousDepotPath) == 0:
 821            self.revision = "#head"
 822
 823        if self.globalPrefix.endswith("..."):
 824            self.globalPrefix = self.globalPrefix[:-3]
 825
 826        if not self.globalPrefix.endswith("/"):
 827            self.globalPrefix += "/"
 828
 829        self.getUserMap()
 830
 831        if len(self.changeRange) == 0:
 832            try:
 833                sout, sin, serr = popen2.popen3("git-name-rev --tags `git-rev-parse %s`" % self.branch)
 834                output = sout.read()
 835                if output.endswith("\n"):
 836                    output = output[:-1]
 837                tagIdx = output.index(" tags/p4/")
 838                caretIdx = output.find("^")
 839                endPos = len(output)
 840                if caretIdx != -1:
 841                    endPos = caretIdx
 842                self.rev = int(output[tagIdx + 9 : endPos]) + 1
 843                self.changeRange = "@%s,#head" % self.rev
 844                self.initialParent = os.popen("git-rev-parse %s" % self.branch).read()[:-1]
 845                self.initialTag = "p4/%s" % (int(self.rev) - 1)
 846            except:
 847                pass
 848
 849        self.tz = - time.timezone / 36
 850        tzsign = ("%s" % self.tz)[0]
 851        if tzsign != '+' and tzsign != '-':
 852            self.tz = "+" + ("%s" % self.tz)
 853
 854        self.gitOutput, self.gitStream, self.gitError = popen2.popen3("git-fast-import")
 855
 856        if len(self.revision) > 0:
 857            print "Doing initial import of %s from revision %s" % (self.globalPrefix, self.revision)
 858
 859            details = { "user" : "git perforce import user", "time" : int(time.time()) }
 860            details["desc"] = "Initial import of %s from the state at revision %s" % (self.globalPrefix, self.revision)
 861            details["change"] = self.revision
 862            newestRevision = 0
 863
 864            fileCnt = 0
 865            for info in p4CmdList("files %s...%s" % (self.globalPrefix, self.revision)):
 866                change = int(info["change"])
 867                if change > newestRevision:
 868                    newestRevision = change
 869
 870                if info["action"] == "delete":
 871                    fileCnt = fileCnt + 1
 872                    continue
 873
 874                for prop in [ "depotFile", "rev", "action", "type" ]:
 875                    details["%s%s" % (prop, fileCnt)] = info[prop]
 876
 877                fileCnt = fileCnt + 1
 878
 879            details["change"] = newestRevision
 880
 881            try:
 882                self.commit(details, self.extractFilesFromCommit(details), self.branch, self.globalPrefix)
 883            except IOError:
 884                print self.gitError.read()
 885
 886        else:
 887            changes = []
 888
 889            if len(self.changesFile) > 0:
 890                output = open(self.changesFile).readlines()
 891                changeSet = Set()
 892                for line in output:
 893                    changeSet.add(int(line))
 894
 895                for change in changeSet:
 896                    changes.append(change)
 897
 898                changes.sort()
 899            else:
 900                output = os.popen("p4 changes %s...%s" % (self.globalPrefix, self.changeRange)).readlines()
 901
 902                for line in output:
 903                    changeNum = line.split(" ")[1]
 904                    changes.append(changeNum)
 905
 906                changes.reverse()
 907
 908            if len(changes) == 0:
 909                if not self.silent:
 910                    print "no changes to import!"
 911                sys.exit(1)
 912
 913            cnt = 1
 914            for change in changes:
 915                description = p4Cmd("describe %s" % change)
 916
 917                if not self.silent:
 918                    sys.stdout.write("\rimporting revision %s (%s%%)" % (change, cnt * 100 / len(changes)))
 919                    sys.stdout.flush()
 920                cnt = cnt + 1
 921
 922                try:
 923                    files = self.extractFilesFromCommit(description)
 924                    if self.detectBranches:
 925                        for branch in self.branchesForCommit(files):
 926                            self.knownBranches.add(branch)
 927                            branchPrefix = self.globalPrefix + branch + "/"
 928
 929                            filesForCommit = self.extractFilesInCommitToBranch(files, branchPrefix)
 930
 931                            merged = ""
 932                            parent = ""
 933                            ########### remove cnt!!!
 934                            if branch not in self.createdBranches and cnt > 2:
 935                                self.createdBranches.add(branch)
 936                                parent = self.findBranchParent(branchPrefix, files)
 937                                if parent == branch:
 938                                    parent = ""
 939            #                    elif len(parent) > 0:
 940            #                        print "%s branched off of %s" % (branch, parent)
 941
 942                            if len(parent) == 0:
 943                                merged = self.findBranchSourceHeuristic(filesForCommit, branch, branchPrefix)
 944                                if len(merged) > 0:
 945                                    print "change %s could be a merge from %s into %s" % (description["change"], merged, branch)
 946                                    if not self.changeIsBranchMerge(merged, branch, int(description["change"])):
 947                                        merged = ""
 948
 949                            branch = "refs/heads/" + branch
 950                            if len(parent) > 0:
 951                                parent = "refs/heads/" + parent
 952                            if len(merged) > 0:
 953                                merged = "refs/heads/" + merged
 954                            self.commit(description, files, branch, branchPrefix, parent, merged)
 955                    else:
 956                        self.commit(description, files, self.branch, self.globalPrefix, self.initialParent)
 957                        self.initialParent = ""
 958                except IOError:
 959                    print self.gitError.read()
 960                    sys.exit(1)
 961
 962        if not self.silent:
 963            print ""
 964
 965        if self.tagLastChange:
 966            self.gitStream.write("reset refs/tags/p4/%s\n" % self.lastChange)
 967            self.gitStream.write("from %s\n\n" % self.branch);
 968
 969
 970        self.gitStream.close()
 971        self.gitOutput.close()
 972        self.gitError.close()
 973
 974        os.popen("git-repo-config p4.depotpath %s" % self.globalPrefix).read()
 975        if len(self.initialTag) > 0:
 976            os.popen("git tag -d %s" % self.initialTag).read()
 977
 978        return True
 979
 980class HelpFormatter(optparse.IndentedHelpFormatter):
 981    def __init__(self):
 982        optparse.IndentedHelpFormatter.__init__(self)
 983
 984    def format_description(self, description):
 985        if description:
 986            return description + "\n"
 987        else:
 988            return ""
 989
 990def printUsage(commands):
 991    print "usage: %s <command> [options]" % sys.argv[0]
 992    print ""
 993    print "valid commands: %s" % ", ".join(commands)
 994    print ""
 995    print "Try %s <command> --help for command specific help." % sys.argv[0]
 996    print ""
 997
 998commands = {
 999    "debug" : P4Debug(),
1000    "clean-tags" : P4CleanTags(),
1001    "submit" : P4Sync(),
1002    "sync" : GitSync()
1003}
1004
1005if len(sys.argv[1:]) == 0:
1006    printUsage(commands.keys())
1007    sys.exit(2)
1008
1009cmd = ""
1010cmdName = sys.argv[1]
1011try:
1012    cmd = commands[cmdName]
1013except KeyError:
1014    print "unknown command %s" % cmdName
1015    print ""
1016    printUsage(commands.keys())
1017    sys.exit(2)
1018
1019options = cmd.options
1020cmd.gitdir = gitdir
1021options.append(optparse.make_option("--git-dir", dest="gitdir"))
1022
1023parser = optparse.OptionParser(cmd.usage.replace("%prog", "%prog " + cmdName),
1024                               options,
1025                               description = cmd.description,
1026                               formatter = HelpFormatter())
1027
1028(cmd, args) = parser.parse_args(sys.argv[2:], cmd);
1029
1030gitdir = cmd.gitdir
1031if len(gitdir) == 0:
1032    gitdir = ".git"
1033    if not isValidGitDir(gitdir):
1034        cdup = os.popen("git-rev-parse --show-cdup").read()[:-1]
1035        if isValidGitDir(cdup + "/" + gitdir):
1036            os.chdir(cdup)
1037
1038if not isValidGitDir(gitdir):
1039    if isValidGitDir(gitdir + "/.git"):
1040        gitdir += "/.git"
1041    else:
1042        die("fatal: cannot locate git repository at %s" % gitdir)
1043
1044os.environ["GIT_DIR"] = gitdir
1045
1046if not cmd.run(args):
1047    parser.print_help()
1048