Andrew's git / gitweb.git / contrib/fast-import/git-p4
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contrib / fast-import / git-p4on commit Fix file determination for #head imports (c45b1cf)
   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        self.needsGit = True
 111
 112class P4Debug(Command):
 113    def __init__(self):
 114        Command.__init__(self)
 115        self.options = [
 116        ]
 117        self.description = "A tool to debug the output of p4 -G."
 118        self.needsGit = False
 119
 120    def run(self, args):
 121        for output in p4CmdList(" ".join(args)):
 122            print output
 123        return True
 124
 125class P4CleanTags(Command):
 126    def __init__(self):
 127        Command.__init__(self)
 128        self.options = [
 129#                optparse.make_option("--branch", dest="branch", default="refs/heads/master")
 130        ]
 131        self.description = "A tool to remove stale unused tags from incremental perforce imports."
 132    def run(self, args):
 133        branch = currentGitBranch()
 134        print "Cleaning out stale p4 import tags..."
 135        sout, sin, serr = popen2.popen3("git name-rev --tags `git rev-parse %s`" % branch)
 136        output = sout.read()
 137        try:
 138            tagIdx = output.index(" tags/p4/")
 139        except:
 140            print "Cannot find any p4/* tag. Nothing to do."
 141            sys.exit(0)
 142
 143        try:
 144            caretIdx = output.index("^")
 145        except:
 146            caretIdx = len(output) - 1
 147        rev = int(output[tagIdx + 9 : caretIdx])
 148
 149        allTags = os.popen("git tag -l p4/").readlines()
 150        for i in range(len(allTags)):
 151            allTags[i] = int(allTags[i][3:-1])
 152
 153        allTags.sort()
 154
 155        allTags.remove(rev)
 156
 157        for rev in allTags:
 158            print os.popen("git tag -d p4/%s" % rev).read()
 159
 160        print "%s tags removed." % len(allTags)
 161        return True
 162
 163class P4Submit(Command):
 164    def __init__(self):
 165        Command.__init__(self)
 166        self.options = [
 167                optparse.make_option("--continue", action="store_false", dest="firstTime"),
 168                optparse.make_option("--origin", dest="origin"),
 169                optparse.make_option("--reset", action="store_true", dest="reset"),
 170                optparse.make_option("--log-substitutions", dest="substFile"),
 171                optparse.make_option("--noninteractive", action="store_false"),
 172                optparse.make_option("--dry-run", action="store_true"),
 173                optparse.make_option("--apply-as-patch", action="store_true", dest="applyAsPatch")
 174        ]
 175        self.description = "Submit changes from git to the perforce depot."
 176        self.usage += " [name of git branch to submit into perforce depot]"
 177        self.firstTime = True
 178        self.reset = False
 179        self.interactive = True
 180        self.dryRun = False
 181        self.substFile = ""
 182        self.firstTime = True
 183        self.origin = ""
 184        self.applyAsPatch = True
 185
 186        self.logSubstitutions = {}
 187        self.logSubstitutions["<enter description here>"] = "%log%"
 188        self.logSubstitutions["\tDetails:"] = "\tDetails:  %log%"
 189
 190    def check(self):
 191        if len(p4CmdList("opened ...")) > 0:
 192            die("You have files opened with perforce! Close them before starting the sync.")
 193
 194    def start(self):
 195        if len(self.config) > 0 and not self.reset:
 196            die("Cannot start sync. Previous sync config found at %s" % self.configFile)
 197
 198        commits = []
 199        for line in os.popen("git rev-list --no-merges %s..%s" % (self.origin, self.master)).readlines():
 200            commits.append(line[:-1])
 201        commits.reverse()
 202
 203        self.config["commits"] = commits
 204
 205        if not self.applyAsPatch:
 206            print "Creating temporary p4-sync branch from %s ..." % self.origin
 207            system("git checkout -f -b p4-sync %s" % self.origin)
 208
 209    def prepareLogMessage(self, template, message):
 210        result = ""
 211
 212        for line in template.split("\n"):
 213            if line.startswith("#"):
 214                result += line + "\n"
 215                continue
 216
 217            substituted = False
 218            for key in self.logSubstitutions.keys():
 219                if line.find(key) != -1:
 220                    value = self.logSubstitutions[key]
 221                    value = value.replace("%log%", message)
 222                    if value != "@remove@":
 223                        result += line.replace(key, value) + "\n"
 224                    substituted = True
 225                    break
 226
 227            if not substituted:
 228                result += line + "\n"
 229
 230        return result
 231
 232    def apply(self, id):
 233        print "Applying %s" % (os.popen("git log --max-count=1 --pretty=oneline %s" % id).read())
 234        diff = os.popen("git diff-tree -r --name-status \"%s^\" \"%s\"" % (id, id)).readlines()
 235        filesToAdd = set()
 236        filesToDelete = set()
 237        for line in diff:
 238            modifier = line[0]
 239            path = line[1:].strip()
 240            if modifier == "M":
 241                system("p4 edit %s" % path)
 242            elif modifier == "A":
 243                filesToAdd.add(path)
 244                if path in filesToDelete:
 245                    filesToDelete.remove(path)
 246            elif modifier == "D":
 247                filesToDelete.add(path)
 248                if path in filesToAdd:
 249                    filesToAdd.remove(path)
 250            else:
 251                die("unknown modifier %s for %s" % (modifier, path))
 252
 253        if self.applyAsPatch:
 254            system("git diff-tree -p --diff-filter=ACMRTUXB \"%s^\" \"%s\" | patch -p1" % (id, id))
 255        else:
 256            system("git diff-files --name-only -z | git update-index --remove -z --stdin")
 257            system("git cherry-pick --no-commit \"%s\"" % id)
 258
 259        for f in filesToAdd:
 260            system("p4 add %s" % f)
 261        for f in filesToDelete:
 262            system("p4 revert %s" % f)
 263            system("p4 delete %s" % f)
 264
 265        logMessage = extractLogMessageFromGitCommit(id)
 266        logMessage = logMessage.replace("\n", "\n\t")
 267        logMessage = logMessage[:-1]
 268
 269        template = os.popen("p4 change -o").read()
 270
 271        if self.interactive:
 272            submitTemplate = self.prepareLogMessage(template, logMessage)
 273            diff = os.popen("p4 diff -du ...").read()
 274
 275            for newFile in filesToAdd:
 276                diff += "==== new file ====\n"
 277                diff += "--- /dev/null\n"
 278                diff += "+++ %s\n" % newFile
 279                f = open(newFile, "r")
 280                for line in f.readlines():
 281                    diff += "+" + line
 282                f.close()
 283
 284            separatorLine = "######## everything below this line is just the diff #######\n"
 285
 286            response = "e"
 287            firstIteration = True
 288            while response == "e":
 289                if not firstIteration:
 290                    response = raw_input("Do you want to submit this change (y/e/n)? ")
 291                firstIteration = False
 292                if response == "e":
 293                    [handle, fileName] = tempfile.mkstemp()
 294                    tmpFile = os.fdopen(handle, "w+")
 295                    tmpFile.write(submitTemplate + separatorLine + diff)
 296                    tmpFile.close()
 297                    editor = os.environ.get("EDITOR", "vi")
 298                    system(editor + " " + fileName)
 299                    tmpFile = open(fileName, "r")
 300                    message = tmpFile.read()
 301                    tmpFile.close()
 302                    os.remove(fileName)
 303                    submitTemplate = message[:message.index(separatorLine)]
 304
 305            if response == "y" or response == "yes":
 306               if self.dryRun:
 307                   print submitTemplate
 308                   raw_input("Press return to continue...")
 309               else:
 310                    pipe = os.popen("p4 submit -i", "w")
 311                    pipe.write(submitTemplate)
 312                    pipe.close()
 313            else:
 314                print "Not submitting!"
 315                self.interactive = False
 316        else:
 317            fileName = "submit.txt"
 318            file = open(fileName, "w+")
 319            file.write(self.prepareLogMessage(template, logMessage))
 320            file.close()
 321            print "Perforce submit template written as %s. Please review/edit and then use p4 submit -i < %s to submit directly!" % (fileName, fileName)
 322
 323    def run(self, args):
 324        global gitdir
 325        # make gitdir absolute so we can cd out into the perforce checkout
 326        gitdir = os.path.abspath(gitdir)
 327        os.environ["GIT_DIR"] = gitdir
 328
 329        if len(args) == 0:
 330            self.master = currentGitBranch()
 331            if len(self.master) == 0 or not os.path.exists("%s/refs/heads/%s" % (gitdir, self.master)):
 332                die("Detecting current git branch failed!")
 333        elif len(args) == 1:
 334            self.master = args[0]
 335        else:
 336            return False
 337
 338        depotPath = ""
 339        if gitBranchExists("p4"):
 340            [depotPath, dummy] = extractDepotPathAndChangeFromGitLog(extractLogMessageFromGitCommit("p4"))
 341        if len(depotPath) == 0 and gitBranchExists("origin"):
 342            [depotPath, dummy] = extractDepotPathAndChangeFromGitLog(extractLogMessageFromGitCommit("origin"))
 343
 344        if len(depotPath) == 0:
 345            print "Internal error: cannot locate perforce depot path from existing branches"
 346            sys.exit(128)
 347
 348        clientPath = p4Where(depotPath)
 349
 350        if len(clientPath) == 0:
 351            print "Error: Cannot locate perforce checkout of %s in client view" % depotPath
 352            sys.exit(128)
 353
 354        print "Perforce checkout for depot path %s located at %s" % (depotPath, clientPath)
 355        os.chdir(clientPath)
 356        response = raw_input("Do you want to sync %s with p4 sync? (y/n) " % clientPath)
 357        if response == "y" or response == "yes":
 358            system("p4 sync ...")
 359
 360        if len(self.origin) == 0:
 361            if gitBranchExists("p4"):
 362                self.origin = "p4"
 363            else:
 364                self.origin = "origin"
 365
 366        if self.reset:
 367            self.firstTime = True
 368
 369        if len(self.substFile) > 0:
 370            for line in open(self.substFile, "r").readlines():
 371                tokens = line[:-1].split("=")
 372                self.logSubstitutions[tokens[0]] = tokens[1]
 373
 374        self.check()
 375        self.configFile = gitdir + "/p4-git-sync.cfg"
 376        self.config = shelve.open(self.configFile, writeback=True)
 377
 378        if self.firstTime:
 379            self.start()
 380
 381        commits = self.config.get("commits", [])
 382
 383        while len(commits) > 0:
 384            self.firstTime = False
 385            commit = commits[0]
 386            commits = commits[1:]
 387            self.config["commits"] = commits
 388            self.apply(commit)
 389            if not self.interactive:
 390                break
 391
 392        self.config.close()
 393
 394        if len(commits) == 0:
 395            if self.firstTime:
 396                print "No changes found to apply between %s and current HEAD" % self.origin
 397            else:
 398                print "All changes applied!"
 399                if not self.applyAsPatch:
 400                    print "Deleting temporary p4-sync branch and going back to %s" % self.master
 401                    system("git checkout %s" % self.master)
 402                    system("git branch -D p4-sync")
 403                    print "Cleaning out your perforce checkout by doing p4 edit ... ; p4 revert ..."
 404                    system("p4 edit ... >/dev/null")
 405                    system("p4 revert ... >/dev/null")
 406            os.remove(self.configFile)
 407
 408        return True
 409
 410class P4Sync(Command):
 411    def __init__(self):
 412        Command.__init__(self)
 413        self.options = [
 414                optparse.make_option("--branch", dest="branch"),
 415                optparse.make_option("--detect-branches", dest="detectBranches", action="store_true"),
 416                optparse.make_option("--changesfile", dest="changesFile"),
 417                optparse.make_option("--silent", dest="silent", action="store_true"),
 418                optparse.make_option("--known-branches", dest="knownBranches"),
 419                optparse.make_option("--data-cache", dest="dataCache", action="store_true"),
 420                optparse.make_option("--command-cache", dest="commandCache", action="store_true"),
 421                optparse.make_option("--detect-labels", dest="detectLabels", action="store_true")
 422        ]
 423        self.description = """Imports from Perforce into a git repository.\n
 424    example:
 425    //depot/my/project/ -- to import the current head
 426    //depot/my/project/@all -- to import everything
 427    //depot/my/project/@1,6 -- to import only from revision 1 to 6
 428
 429    (a ... is not needed in the path p4 specification, it's added implicitly)"""
 430
 431        self.usage += " //depot/path[@revRange]"
 432
 433        self.dataCache = False
 434        self.commandCache = False
 435        self.silent = False
 436        self.knownBranches = Set()
 437        self.createdBranches = Set()
 438        self.committedChanges = Set()
 439        self.branch = ""
 440        self.detectBranches = False
 441        self.detectLabels = False
 442        self.changesFile = ""
 443        self.tagLastChange = True
 444
 445    def p4File(self, depotPath):
 446        return os.popen("p4 print -q \"%s\"" % depotPath, "rb").read()
 447
 448    def extractFilesFromCommit(self, commit):
 449        files = []
 450        fnum = 0
 451        while commit.has_key("depotFile%s" % fnum):
 452            path =  commit["depotFile%s" % fnum]
 453            if not path.startswith(self.globalPrefix):
 454    #            if not self.silent:
 455    #                print "\nchanged files: ignoring path %s outside of %s in change %s" % (path, self.globalPrefix, change)
 456                fnum = fnum + 1
 457                continue
 458
 459            file = {}
 460            file["path"] = path
 461            file["rev"] = commit["rev%s" % fnum]
 462            file["action"] = commit["action%s" % fnum]
 463            file["type"] = commit["type%s" % fnum]
 464            files.append(file)
 465            fnum = fnum + 1
 466        return files
 467
 468    def isSubPathOf(self, first, second):
 469        if not first.startswith(second):
 470            return False
 471        if first == second:
 472            return True
 473        return first[len(second)] == "/"
 474
 475    def branchesForCommit(self, files):
 476        branches = Set()
 477
 478        for file in files:
 479            relativePath = file["path"][len(self.globalPrefix):]
 480            # strip off the filename
 481            relativePath = relativePath[0:relativePath.rfind("/")]
 482
 483    #        if len(branches) == 0:
 484    #            branches.add(relativePath)
 485    #            knownBranches.add(relativePath)
 486    #            continue
 487
 488            ###### this needs more testing :)
 489            knownBranch = False
 490            for branch in branches:
 491                if relativePath == branch:
 492                    knownBranch = True
 493                    break
 494    #            if relativePath.startswith(branch):
 495                if self.isSubPathOf(relativePath, branch):
 496                    knownBranch = True
 497                    break
 498    #            if branch.startswith(relativePath):
 499                if self.isSubPathOf(branch, relativePath):
 500                    branches.remove(branch)
 501                    break
 502
 503            if knownBranch:
 504                continue
 505
 506            for branch in self.knownBranches:
 507                #if relativePath.startswith(branch):
 508                if self.isSubPathOf(relativePath, branch):
 509                    if len(branches) == 0:
 510                        relativePath = branch
 511                    else:
 512                        knownBranch = True
 513                    break
 514
 515            if knownBranch:
 516                continue
 517
 518            branches.add(relativePath)
 519            self.knownBranches.add(relativePath)
 520
 521        return branches
 522
 523    def findBranchParent(self, branchPrefix, files):
 524        for file in files:
 525            path = file["path"]
 526            if not path.startswith(branchPrefix):
 527                continue
 528            action = file["action"]
 529            if action != "integrate" and action != "branch":
 530                continue
 531            rev = file["rev"]
 532            depotPath = path + "#" + rev
 533
 534            log = p4CmdList("filelog \"%s\"" % depotPath)
 535            if len(log) != 1:
 536                print "eek! I got confused by the filelog of %s" % depotPath
 537                sys.exit(1);
 538
 539            log = log[0]
 540            if log["action0"] != action:
 541                print "eek! wrong action in filelog for %s : found %s, expected %s" % (depotPath, log["action0"], action)
 542                sys.exit(1);
 543
 544            branchAction = log["how0,0"]
 545    #        if branchAction == "branch into" or branchAction == "ignored":
 546    #            continue # ignore for branching
 547
 548            if not branchAction.endswith(" from"):
 549                continue # ignore for branching
 550    #            print "eek! file %s was not branched from but instead: %s" % (depotPath, branchAction)
 551    #            sys.exit(1);
 552
 553            source = log["file0,0"]
 554            if source.startswith(branchPrefix):
 555                continue
 556
 557            lastSourceRev = log["erev0,0"]
 558
 559            sourceLog = p4CmdList("filelog -m 1 \"%s%s\"" % (source, lastSourceRev))
 560            if len(sourceLog) != 1:
 561                print "eek! I got confused by the source filelog of %s%s" % (source, lastSourceRev)
 562                sys.exit(1);
 563            sourceLog = sourceLog[0]
 564
 565            relPath = source[len(self.globalPrefix):]
 566            # strip off the filename
 567            relPath = relPath[0:relPath.rfind("/")]
 568
 569            for branch in self.knownBranches:
 570                if self.isSubPathOf(relPath, branch):
 571    #                print "determined parent branch branch %s due to change in file %s" % (branch, source)
 572                    return branch
 573    #            else:
 574    #                print "%s is not a subpath of branch %s" % (relPath, branch)
 575
 576        return ""
 577
 578    def commit(self, details, files, branch, branchPrefix, parent = "", merged = ""):
 579        epoch = details["time"]
 580        author = details["user"]
 581
 582        self.gitStream.write("commit %s\n" % branch)
 583    #    gitStream.write("mark :%s\n" % details["change"])
 584        self.committedChanges.add(int(details["change"]))
 585        committer = ""
 586        if author in self.users:
 587            committer = "%s %s %s" % (self.users[author], epoch, self.tz)
 588        else:
 589            committer = "%s <a@b> %s %s" % (author, epoch, self.tz)
 590
 591        self.gitStream.write("committer %s\n" % committer)
 592
 593        self.gitStream.write("data <<EOT\n")
 594        self.gitStream.write(details["desc"])
 595        self.gitStream.write("\n[git-p4: depot-path = \"%s\": change = %s]\n" % (branchPrefix, details["change"]))
 596        self.gitStream.write("EOT\n\n")
 597
 598        if len(parent) > 0:
 599            self.gitStream.write("from %s\n" % parent)
 600
 601        if len(merged) > 0:
 602            self.gitStream.write("merge %s\n" % merged)
 603
 604        for file in files:
 605            path = file["path"]
 606            if not path.startswith(branchPrefix):
 607    #            if not silent:
 608    #                print "\nchanged files: ignoring path %s outside of branch prefix %s in change %s" % (path, branchPrefix, details["change"])
 609                continue
 610            rev = file["rev"]
 611            depotPath = path + "#" + rev
 612            relPath = path[len(branchPrefix):]
 613            action = file["action"]
 614
 615            if file["type"] == "apple":
 616                print "\nfile %s is a strange apple file that forks. Ignoring!" % path
 617                continue
 618
 619            if action == "delete":
 620                self.gitStream.write("D %s\n" % relPath)
 621            else:
 622                mode = 644
 623                if file["type"].startswith("x"):
 624                    mode = 755
 625
 626                data = self.p4File(depotPath)
 627
 628                self.gitStream.write("M %s inline %s\n" % (mode, relPath))
 629                self.gitStream.write("data %s\n" % len(data))
 630                self.gitStream.write(data)
 631                self.gitStream.write("\n")
 632
 633        self.gitStream.write("\n")
 634
 635        change = int(details["change"])
 636
 637        self.lastChange = change
 638
 639        if change in self.labels:
 640            label = self.labels[change]
 641            labelDetails = label[0]
 642            labelRevisions = label[1]
 643
 644            files = p4CmdList("files %s...@%s" % (branchPrefix, change))
 645
 646            if len(files) == len(labelRevisions):
 647
 648                cleanedFiles = {}
 649                for info in files:
 650                    if info["action"] == "delete":
 651                        continue
 652                    cleanedFiles[info["depotFile"]] = info["rev"]
 653
 654                if cleanedFiles == labelRevisions:
 655                    self.gitStream.write("tag tag_%s\n" % labelDetails["label"])
 656                    self.gitStream.write("from %s\n" % branch)
 657
 658                    owner = labelDetails["Owner"]
 659                    tagger = ""
 660                    if author in self.users:
 661                        tagger = "%s %s %s" % (self.users[owner], epoch, self.tz)
 662                    else:
 663                        tagger = "%s <a@b> %s %s" % (owner, epoch, self.tz)
 664                    self.gitStream.write("tagger %s\n" % tagger)
 665                    self.gitStream.write("data <<EOT\n")
 666                    self.gitStream.write(labelDetails["Description"])
 667                    self.gitStream.write("EOT\n\n")
 668
 669                else:
 670                    if not self.silent:
 671                        print "Tag %s does not match with change %s: files do not match." % (labelDetails["label"], change)
 672
 673            else:
 674                if not self.silent:
 675                    print "Tag %s does not match with change %s: file count is different." % (labelDetails["label"], change)
 676
 677    def extractFilesInCommitToBranch(self, files, branchPrefix):
 678        newFiles = []
 679
 680        for file in files:
 681            path = file["path"]
 682            if path.startswith(branchPrefix):
 683                newFiles.append(file)
 684
 685        return newFiles
 686
 687    def findBranchSourceHeuristic(self, files, branch, branchPrefix):
 688        for file in files:
 689            action = file["action"]
 690            if action != "integrate" and action != "branch":
 691                continue
 692            path = file["path"]
 693            rev = file["rev"]
 694            depotPath = path + "#" + rev
 695
 696            log = p4CmdList("filelog \"%s\"" % depotPath)
 697            if len(log) != 1:
 698                print "eek! I got confused by the filelog of %s" % depotPath
 699                sys.exit(1);
 700
 701            log = log[0]
 702            if log["action0"] != action:
 703                print "eek! wrong action in filelog for %s : found %s, expected %s" % (depotPath, log["action0"], action)
 704                sys.exit(1);
 705
 706            branchAction = log["how0,0"]
 707
 708            if not branchAction.endswith(" from"):
 709                continue # ignore for branching
 710    #            print "eek! file %s was not branched from but instead: %s" % (depotPath, branchAction)
 711    #            sys.exit(1);
 712
 713            source = log["file0,0"]
 714            if source.startswith(branchPrefix):
 715                continue
 716
 717            lastSourceRev = log["erev0,0"]
 718
 719            sourceLog = p4CmdList("filelog -m 1 \"%s%s\"" % (source, lastSourceRev))
 720            if len(sourceLog) != 1:
 721                print "eek! I got confused by the source filelog of %s%s" % (source, lastSourceRev)
 722                sys.exit(1);
 723            sourceLog = sourceLog[0]
 724
 725            relPath = source[len(self.globalPrefix):]
 726            # strip off the filename
 727            relPath = relPath[0:relPath.rfind("/")]
 728
 729            for candidate in self.knownBranches:
 730                if self.isSubPathOf(relPath, candidate) and candidate != branch:
 731                    return candidate
 732
 733        return ""
 734
 735    def changeIsBranchMerge(self, sourceBranch, destinationBranch, change):
 736        sourceFiles = {}
 737        for file in p4CmdList("files %s...@%s" % (self.globalPrefix + sourceBranch + "/", change)):
 738            if file["action"] == "delete":
 739                continue
 740            sourceFiles[file["depotFile"]] = file
 741
 742        destinationFiles = {}
 743        for file in p4CmdList("files %s...@%s" % (self.globalPrefix + destinationBranch + "/", change)):
 744            destinationFiles[file["depotFile"]] = file
 745
 746        for fileName in sourceFiles.keys():
 747            integrations = []
 748            deleted = False
 749            integrationCount = 0
 750            for integration in p4CmdList("integrated \"%s\"" % fileName):
 751                toFile = integration["fromFile"] # yes, it's true, it's fromFile
 752                if not toFile in destinationFiles:
 753                    continue
 754                destFile = destinationFiles[toFile]
 755                if destFile["action"] == "delete":
 756    #                print "file %s has been deleted in %s" % (fileName, toFile)
 757                    deleted = True
 758                    break
 759                integrationCount += 1
 760                if integration["how"] == "branch from":
 761                    continue
 762
 763                if int(integration["change"]) == change:
 764                    integrations.append(integration)
 765                    continue
 766                if int(integration["change"]) > change:
 767                    continue
 768
 769                destRev = int(destFile["rev"])
 770
 771                startRev = integration["startFromRev"][1:]
 772                if startRev == "none":
 773                    startRev = 0
 774                else:
 775                    startRev = int(startRev)
 776
 777                endRev = integration["endFromRev"][1:]
 778                if endRev == "none":
 779                    endRev = 0
 780                else:
 781                    endRev = int(endRev)
 782
 783                initialBranch = (destRev == 1 and integration["how"] != "branch into")
 784                inRange = (destRev >= startRev and destRev <= endRev)
 785                newer = (destRev > startRev and destRev > endRev)
 786
 787                if initialBranch or inRange or newer:
 788                    integrations.append(integration)
 789
 790            if deleted:
 791                continue
 792
 793            if len(integrations) == 0 and integrationCount > 1:
 794                print "file %s was not integrated from %s into %s" % (fileName, sourceBranch, destinationBranch)
 795                return False
 796
 797        return True
 798
 799    def getUserMap(self):
 800        self.users = {}
 801
 802        for output in p4CmdList("users"):
 803            if not output.has_key("User"):
 804                continue
 805            self.users[output["User"]] = output["FullName"] + " <" + output["Email"] + ">"
 806
 807    def getLabels(self):
 808        self.labels = {}
 809
 810        l = p4CmdList("labels %s..." % self.globalPrefix)
 811        if len(l) > 0 and not silent:
 812            print "Finding files belonging to labels in %s" % self.globalPrefix
 813
 814        for output in l:
 815            label = output["label"]
 816            revisions = {}
 817            newestChange = 0
 818            for file in p4CmdList("files //...@%s" % label):
 819                revisions[file["depotFile"]] = file["rev"]
 820                change = int(file["change"])
 821                if change > newestChange:
 822                    newestChange = change
 823
 824            self.labels[newestChange] = [output, revisions]
 825
 826    def run(self, args):
 827        self.globalPrefix = ""
 828        self.changeRange = ""
 829        self.initialParent = ""
 830
 831        if len(self.branch) == 0:
 832            self.branch = "p4"
 833
 834        if len(args) == 0:
 835            if not gitBranchExists(self.branch) and gitBranchExists("origin"):
 836                if not self.silent:
 837                    print "Creating %s branch in git repository based on origin" % self.branch
 838                system("git branch %s origin" % self.branch)
 839
 840            [self.previousDepotPath, p4Change] = extractDepotPathAndChangeFromGitLog(extractLogMessageFromGitCommit(self.branch))
 841            if len(self.previousDepotPath) > 0 and len(p4Change) > 0:
 842                p4Change = int(p4Change) + 1
 843                self.globalPrefix = self.previousDepotPath
 844                self.changeRange = "@%s,#head" % p4Change
 845                self.initialParent = self.branch
 846                self.tagLastChange = False
 847                if not self.silent:
 848                    print "Performing incremental import into %s git branch" % self.branch
 849
 850        self.branch = "refs/heads/" + self.branch
 851
 852        if len(self.globalPrefix) == 0:
 853            self.globalPrefix = self.previousDepotPath = os.popen("git repo-config --get p4.depotpath").read()
 854
 855        if len(self.globalPrefix) != 0:
 856            self.globalPrefix = self.globalPrefix[:-1]
 857
 858        if len(args) == 0 and len(self.globalPrefix) != 0:
 859            if not self.silent:
 860                print "Depot path: %s" % self.globalPrefix
 861        elif len(args) != 1:
 862            return False
 863        else:
 864            if len(self.globalPrefix) != 0 and self.globalPrefix != args[0]:
 865                print "previous import used depot path %s and now %s was specified. this doesn't work!" % (self.globalPrefix, args[0])
 866                sys.exit(1)
 867            self.globalPrefix = args[0]
 868
 869        self.revision = ""
 870        self.users = {}
 871        self.lastChange = 0
 872        self.initialTag = ""
 873
 874        if self.globalPrefix.find("@") != -1:
 875            atIdx = self.globalPrefix.index("@")
 876            self.changeRange = self.globalPrefix[atIdx:]
 877            if self.changeRange == "@all":
 878                self.changeRange = ""
 879            elif self.changeRange.find(",") == -1:
 880                self.revision = self.changeRange
 881                self.changeRange = ""
 882            self.globalPrefix = self.globalPrefix[0:atIdx]
 883        elif self.globalPrefix.find("#") != -1:
 884            hashIdx = self.globalPrefix.index("#")
 885            self.revision = self.globalPrefix[hashIdx:]
 886            self.globalPrefix = self.globalPrefix[0:hashIdx]
 887        elif len(self.previousDepotPath) == 0:
 888            self.revision = "#head"
 889
 890        if self.globalPrefix.endswith("..."):
 891            self.globalPrefix = self.globalPrefix[:-3]
 892
 893        if not self.globalPrefix.endswith("/"):
 894            self.globalPrefix += "/"
 895
 896        self.getUserMap()
 897        self.labels = {}
 898        if self.detectLabels:
 899            self.getLabels();
 900
 901        if len(self.changeRange) == 0:
 902            try:
 903                sout, sin, serr = popen2.popen3("git name-rev --tags `git rev-parse %s`" % self.branch)
 904                output = sout.read()
 905                if output.endswith("\n"):
 906                    output = output[:-1]
 907                tagIdx = output.index(" tags/p4/")
 908                caretIdx = output.find("^")
 909                endPos = len(output)
 910                if caretIdx != -1:
 911                    endPos = caretIdx
 912                self.rev = int(output[tagIdx + 9 : endPos]) + 1
 913                self.changeRange = "@%s,#head" % self.rev
 914                self.initialParent = os.popen("git rev-parse %s" % self.branch).read()[:-1]
 915                self.initialTag = "p4/%s" % (int(self.rev) - 1)
 916            except:
 917                pass
 918
 919        self.tz = - time.timezone / 36
 920        tzsign = ("%s" % self.tz)[0]
 921        if tzsign != '+' and tzsign != '-':
 922            self.tz = "+" + ("%s" % self.tz)
 923
 924        self.gitOutput, self.gitStream, self.gitError = popen2.popen3("git fast-import")
 925
 926        if len(self.revision) > 0:
 927            print "Doing initial import of %s from revision %s" % (self.globalPrefix, self.revision)
 928
 929            details = { "user" : "git perforce import user", "time" : int(time.time()) }
 930            details["desc"] = "Initial import of %s from the state at revision %s" % (self.globalPrefix, self.revision)
 931            details["change"] = self.revision
 932            newestRevision = 0
 933
 934            fileCnt = 0
 935            for info in p4CmdList("files %s...%s" % (self.globalPrefix, self.revision)):
 936                change = int(info["change"])
 937                if change > newestRevision:
 938                    newestRevision = change
 939
 940                if info["action"] == "delete":
 941                    # don't increase the file cnt, otherwise details["depotFile123"] will have gaps!
 942                    #fileCnt = fileCnt + 1
 943                    continue
 944
 945                for prop in [ "depotFile", "rev", "action", "type" ]:
 946                    details["%s%s" % (prop, fileCnt)] = info[prop]
 947
 948                fileCnt = fileCnt + 1
 949
 950            details["change"] = newestRevision
 951
 952            try:
 953                self.commit(details, self.extractFilesFromCommit(details), self.branch, self.globalPrefix)
 954            except IOError:
 955                print self.gitError.read()
 956
 957        else:
 958            changes = []
 959
 960            if len(self.changesFile) > 0:
 961                output = open(self.changesFile).readlines()
 962                changeSet = Set()
 963                for line in output:
 964                    changeSet.add(int(line))
 965
 966                for change in changeSet:
 967                    changes.append(change)
 968
 969                changes.sort()
 970            else:
 971                output = os.popen("p4 changes %s...%s" % (self.globalPrefix, self.changeRange)).readlines()
 972
 973                for line in output:
 974                    changeNum = line.split(" ")[1]
 975                    changes.append(changeNum)
 976
 977                changes.reverse()
 978
 979            if len(changes) == 0:
 980                if not self.silent:
 981                    print "no changes to import!"
 982                return True
 983
 984            cnt = 1
 985            for change in changes:
 986                description = p4Cmd("describe %s" % change)
 987
 988                if not self.silent:
 989                    sys.stdout.write("\rimporting revision %s (%s%%)" % (change, cnt * 100 / len(changes)))
 990                    sys.stdout.flush()
 991                cnt = cnt + 1
 992
 993                try:
 994                    files = self.extractFilesFromCommit(description)
 995                    if self.detectBranches:
 996                        for branch in self.branchesForCommit(files):
 997                            self.knownBranches.add(branch)
 998                            branchPrefix = self.globalPrefix + branch + "/"
 999
1000                            filesForCommit = self.extractFilesInCommitToBranch(files, branchPrefix)
1001
1002                            merged = ""
1003                            parent = ""
1004                            ########### remove cnt!!!
1005                            if branch not in self.createdBranches and cnt > 2:
1006                                self.createdBranches.add(branch)
1007                                parent = self.findBranchParent(branchPrefix, files)
1008                                if parent == branch:
1009                                    parent = ""
1010            #                    elif len(parent) > 0:
1011            #                        print "%s branched off of %s" % (branch, parent)
1012
1013                            if len(parent) == 0:
1014                                merged = self.findBranchSourceHeuristic(filesForCommit, branch, branchPrefix)
1015                                if len(merged) > 0:
1016                                    print "change %s could be a merge from %s into %s" % (description["change"], merged, branch)
1017                                    if not self.changeIsBranchMerge(merged, branch, int(description["change"])):
1018                                        merged = ""
1019
1020                            branch = "refs/heads/" + branch
1021                            if len(parent) > 0:
1022                                parent = "refs/heads/" + parent
1023                            if len(merged) > 0:
1024                                merged = "refs/heads/" + merged
1025                            self.commit(description, files, branch, branchPrefix, parent, merged)
1026                    else:
1027                        self.commit(description, files, self.branch, self.globalPrefix, self.initialParent)
1028                        self.initialParent = ""
1029                except IOError:
1030                    print self.gitError.read()
1031                    sys.exit(1)
1032
1033        if not self.silent:
1034            print ""
1035
1036        if self.tagLastChange:
1037            self.gitStream.write("reset refs/tags/p4/%s\n" % self.lastChange)
1038            self.gitStream.write("from %s\n\n" % self.branch);
1039
1040
1041        self.gitStream.close()
1042        self.gitOutput.close()
1043        self.gitError.close()
1044
1045        os.popen("git repo-config p4.depotpath %s" % self.globalPrefix).read()
1046        if len(self.initialTag) > 0:
1047            os.popen("git tag -d %s" % self.initialTag).read()
1048
1049        return True
1050
1051class P4Rebase(Command):
1052    def __init__(self):
1053        Command.__init__(self)
1054        self.options = [ ]
1055        self.description = "Fetches the latest revision from perforce and rebases the current work (branch) against it"
1056
1057    def run(self, args):
1058        sync = P4Sync()
1059        sync.run([])
1060        print "Rebasing the current branch"
1061        oldHead = os.popen("git rev-parse HEAD").read()[:-1]
1062        system("git rebase p4")
1063        system("git diff-tree --stat --summary -M %s HEAD" % oldHead)
1064        return True
1065
1066class P4Clone(P4Sync):
1067    def __init__(self):
1068        P4Sync.__init__(self)
1069        self.description = "Creates a new git repository and imports from Perforce into it"
1070        self.usage = "usage: %prog [options] //depot/path[@revRange] [directory]"
1071        self.needsGit = False
1072        self.tagLastChange = False
1073
1074    def run(self, args):
1075        if len(args) < 1:
1076            return False
1077        depotPath = args[0]
1078        dir = ""
1079        if len(args) == 2:
1080            dir = args[1]
1081        elif len(args) > 2:
1082            return False
1083
1084        if not depotPath.startswith("//"):
1085            return False
1086
1087        if len(dir) == 0:
1088            dir = depotPath
1089            atPos = dir.rfind("@")
1090            if atPos != -1:
1091                dir = dir[0:atPos]
1092            hashPos = dir.rfind("#")
1093            if hashPos != -1:
1094                dir = dir[0:hashPos]
1095
1096            if dir.endswith("..."):
1097                dir = dir[:-3]
1098
1099            if dir.endswith("/"):
1100               dir = dir[:-1]
1101
1102            slashPos = dir.rfind("/")
1103            if slashPos != -1:
1104                dir = dir[slashPos + 1:]
1105
1106        print "Importing from %s into %s" % (depotPath, dir)
1107        os.makedirs(dir)
1108        os.chdir(dir)
1109        system("git init")
1110        if not P4Sync.run(self, [depotPath]):
1111            return False
1112        os.wait()
1113        if self.branch != "master":
1114            system("git branch master p4")
1115            system("git checkout -f")
1116        return True
1117
1118class HelpFormatter(optparse.IndentedHelpFormatter):
1119    def __init__(self):
1120        optparse.IndentedHelpFormatter.__init__(self)
1121
1122    def format_description(self, description):
1123        if description:
1124            return description + "\n"
1125        else:
1126            return ""
1127
1128def printUsage(commands):
1129    print "usage: %s <command> [options]" % sys.argv[0]
1130    print ""
1131    print "valid commands: %s" % ", ".join(commands)
1132    print ""
1133    print "Try %s <command> --help for command specific help." % sys.argv[0]
1134    print ""
1135
1136commands = {
1137    "debug" : P4Debug(),
1138    "clean-tags" : P4CleanTags(),
1139    "submit" : P4Submit(),
1140    "sync" : P4Sync(),
1141    "rebase" : P4Rebase(),
1142    "clone" : P4Clone()
1143}
1144
1145if len(sys.argv[1:]) == 0:
1146    printUsage(commands.keys())
1147    sys.exit(2)
1148
1149cmd = ""
1150cmdName = sys.argv[1]
1151try:
1152    cmd = commands[cmdName]
1153except KeyError:
1154    print "unknown command %s" % cmdName
1155    print ""
1156    printUsage(commands.keys())
1157    sys.exit(2)
1158
1159options = cmd.options
1160cmd.gitdir = gitdir
1161
1162args = sys.argv[2:]
1163
1164if len(options) > 0:
1165    options.append(optparse.make_option("--git-dir", dest="gitdir"))
1166
1167    parser = optparse.OptionParser(cmd.usage.replace("%prog", "%prog " + cmdName),
1168                                   options,
1169                                   description = cmd.description,
1170                                   formatter = HelpFormatter())
1171
1172    (cmd, args) = parser.parse_args(sys.argv[2:], cmd);
1173
1174if cmd.needsGit:
1175    gitdir = cmd.gitdir
1176    if len(gitdir) == 0:
1177        gitdir = ".git"
1178        if not isValidGitDir(gitdir):
1179            cdup = os.popen("git rev-parse --show-cdup").read()[:-1]
1180            if isValidGitDir(cdup + "/" + gitdir):
1181                os.chdir(cdup)
1182
1183    if not isValidGitDir(gitdir):
1184        if isValidGitDir(gitdir + "/.git"):
1185            gitdir += "/.git"
1186        else:
1187            die("fatal: cannot locate git repository at %s" % gitdir)
1188
1189    os.environ["GIT_DIR"] = gitdir
1190
1191if not cmd.run(args):
1192    parser.print_help()
1193