Andrew's git / gitweb.git / contrib/fast-import/git-p4
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contrib / fast-import / git-p4on commit Hack to make the multi-branch import work again with self.depotPaths now that (6509e19)
   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 <simon@lst.de>
   6# Copyright: 2007 Simon Hausmann <simon@lst.de>
   7#            2007 Trolltech ASA
   8# License: MIT <http://www.opensource.org/licenses/mit-license.php>
   9#
  10
  11import optparse, sys, os, marshal, popen2, subprocess, shelve
  12import tempfile, getopt, sha, os.path, time, platform
  13import re
  14
  15from sets import Set;
  16
  17verbose = False
  18
  19def die(msg):
  20    if verbose:
  21        raise Exception(msg)
  22    else:
  23        sys.stderr.write(msg + "\n")
  24        sys.exit(1)
  25
  26def write_pipe(c, str):
  27    if verbose:
  28        sys.stderr.write('Writing pipe: %s\n' % c)
  29
  30    pipe = os.popen(c, 'w')
  31    val = pipe.write(str)
  32    if pipe.close():
  33        die('Command failed: %s' % c)
  34
  35    return val
  36
  37def read_pipe(c, ignore_error=False):
  38    if verbose:
  39        sys.stderr.write('Reading pipe: %s\n' % c)
  40
  41    pipe = os.popen(c, 'rb')
  42    val = pipe.read()
  43    if pipe.close() and not ignore_error:
  44        die('Command failed: %s' % c)
  45
  46    return val
  47
  48
  49def read_pipe_lines(c):
  50    if verbose:
  51        sys.stderr.write('Reading pipe: %s\n' % c)
  52    ## todo: check return status
  53    pipe = os.popen(c, 'rb')
  54    val = pipe.readlines()
  55    if pipe.close():
  56        die('Command failed: %s' % c)
  57
  58    return val
  59
  60def system(cmd):
  61    if verbose:
  62        sys.stderr.write("executing %s\n" % cmd)
  63    if os.system(cmd) != 0:
  64        die("command failed: %s" % cmd)
  65
  66def p4CmdList(cmd):
  67    cmd = "p4 -G %s" % cmd
  68    if verbose:
  69        sys.stderr.write("Opening pipe: %s\n" % cmd)
  70    pipe = os.popen(cmd, "rb")
  71
  72    result = []
  73    try:
  74        while True:
  75            entry = marshal.load(pipe)
  76            result.append(entry)
  77    except EOFError:
  78        pass
  79    exitCode = pipe.close()
  80    if exitCode != None:
  81        entry = {}
  82        entry["p4ExitCode"] = exitCode
  83        result.append(entry)
  84
  85    return result
  86
  87def p4Cmd(cmd):
  88    list = p4CmdList(cmd)
  89    result = {}
  90    for entry in list:
  91        result.update(entry)
  92    return result;
  93
  94def p4Where(depotPath):
  95    if not depotPath.endswith("/"):
  96        depotPath += "/"
  97    output = p4Cmd("where %s..." % depotPath)
  98    if output["code"] == "error":
  99        return ""
 100    clientPath = ""
 101    if "path" in output:
 102        clientPath = output.get("path")
 103    elif "data" in output:
 104        data = output.get("data")
 105        lastSpace = data.rfind(" ")
 106        clientPath = data[lastSpace + 1:]
 107
 108    if clientPath.endswith("..."):
 109        clientPath = clientPath[:-3]
 110    return clientPath
 111
 112def currentGitBranch():
 113    return read_pipe("git name-rev HEAD").split(" ")[1].strip()
 114
 115def isValidGitDir(path):
 116    if (os.path.exists(path + "/HEAD")
 117        and os.path.exists(path + "/refs") and os.path.exists(path + "/objects")):
 118        return True;
 119    return False
 120
 121def parseRevision(ref):
 122    return read_pipe("git rev-parse %s" % ref).strip()
 123
 124def extractLogMessageFromGitCommit(commit):
 125    logMessage = ""
 126
 127    ## fixme: title is first line of commit, not 1st paragraph.
 128    foundTitle = False
 129    for log in read_pipe_lines("git cat-file commit %s" % commit):
 130       if not foundTitle:
 131           if len(log) == 1:
 132               foundTitle = True
 133           continue
 134
 135       logMessage += log
 136    return logMessage
 137
 138def extractSettingsGitLog(log):
 139    values = {}
 140    for line in log.split("\n"):
 141        line = line.strip()
 142        m = re.search (r"^ *\[git-p4: (.*)\]$", line)
 143        if not m:
 144            continue
 145
 146        assignments = m.group(1).split (':')
 147        for a in assignments:
 148            vals = a.split ('=')
 149            key = vals[0].strip()
 150            val = ('='.join (vals[1:])).strip()
 151            if val.endswith ('\"') and val.startswith('"'):
 152                val = val[1:-1]
 153
 154            values[key] = val
 155
 156    paths = values.get("depot-paths")
 157    if not paths:
 158        paths = values.get("depot-path")
 159    values['depot-paths'] = paths.split(',')
 160    return values
 161
 162def gitBranchExists(branch):
 163    proc = subprocess.Popen(["git", "rev-parse", branch],
 164                            stderr=subprocess.PIPE, stdout=subprocess.PIPE);
 165    return proc.wait() == 0;
 166
 167def gitConfig(key):
 168    return read_pipe("git config %s" % key, ignore_error=True).strip()
 169
 170class Command:
 171    def __init__(self):
 172        self.usage = "usage: %prog [options]"
 173        self.needsGit = True
 174
 175class P4Debug(Command):
 176    def __init__(self):
 177        Command.__init__(self)
 178        self.options = [
 179            optparse.make_option("--verbose", dest="verbose", action="store_true",
 180                                 default=False),
 181            ]
 182        self.description = "A tool to debug the output of p4 -G."
 183        self.needsGit = False
 184        self.verbose = False
 185
 186    def run(self, args):
 187        j = 0
 188        for output in p4CmdList(" ".join(args)):
 189            print 'Element: %d' % j
 190            j += 1
 191            print output
 192        return True
 193
 194class P4RollBack(Command):
 195    def __init__(self):
 196        Command.__init__(self)
 197        self.options = [
 198            optparse.make_option("--verbose", dest="verbose", action="store_true"),
 199            optparse.make_option("--local", dest="rollbackLocalBranches", action="store_true")
 200        ]
 201        self.description = "A tool to debug the multi-branch import. Don't use :)"
 202        self.verbose = False
 203        self.rollbackLocalBranches = False
 204
 205    def run(self, args):
 206        if len(args) != 1:
 207            return False
 208        maxChange = int(args[0])
 209
 210        if "p4ExitCode" in p4Cmd("changes -m 1"):
 211            die("Problems executing p4");
 212
 213        if self.rollbackLocalBranches:
 214            refPrefix = "refs/heads/"
 215            lines = read_pipe_lines("git rev-parse --symbolic --branches")
 216        else:
 217            refPrefix = "refs/remotes/"
 218            lines = read_pipe_lines("git rev-parse --symbolic --remotes")
 219
 220        for line in lines:
 221            if self.rollbackLocalBranches or (line.startswith("p4/") and line != "p4/HEAD\n"):
 222                line = line.strip()
 223                ref = refPrefix + line
 224                log = extractLogMessageFromGitCommit(ref)
 225                settings = extractSettingsGitLog(log)
 226
 227                depotPaths = settings['depot-paths']
 228                change = settings['change']
 229
 230                changed = False
 231
 232                if len(p4Cmd("changes -m 1 "  + ' '.join (['%s...@%s' % (p, maxChange)
 233                                                           for p in depotPaths]))) == 0:
 234                    print "Branch %s did not exist at change %s, deleting." % (ref, maxChange)
 235                    system("git update-ref -d %s `git rev-parse %s`" % (ref, ref))
 236                    continue
 237
 238                while change and int(change) > maxChange:
 239                    changed = True
 240                    if self.verbose:
 241                        print "%s is at %s ; rewinding towards %s" % (ref, change, maxChange)
 242                    system("git update-ref %s \"%s^\"" % (ref, ref))
 243                    log = extractLogMessageFromGitCommit(ref)
 244                    settings =  extractSettingsGitLog(log)
 245
 246
 247                    depotPaths = settings['depot-paths']
 248                    change = settings['change']
 249
 250                if changed:
 251                    print "%s rewound to %s" % (ref, change)
 252
 253        return True
 254
 255class P4Submit(Command):
 256    def __init__(self):
 257        Command.__init__(self)
 258        self.options = [
 259                optparse.make_option("--continue", action="store_false", dest="firstTime"),
 260                optparse.make_option("--verbose", dest="verbose", action="store_true"),
 261                optparse.make_option("--origin", dest="origin"),
 262                optparse.make_option("--reset", action="store_true", dest="reset"),
 263                optparse.make_option("--log-substitutions", dest="substFile"),
 264                optparse.make_option("--dry-run", action="store_true"),
 265                optparse.make_option("--direct", dest="directSubmit", action="store_true"),
 266                optparse.make_option("--trust-me-like-a-fool", dest="trustMeLikeAFool", action="store_true"),
 267        ]
 268        self.description = "Submit changes from git to the perforce depot."
 269        self.usage += " [name of git branch to submit into perforce depot]"
 270        self.firstTime = True
 271        self.reset = False
 272        self.interactive = True
 273        self.dryRun = False
 274        self.substFile = ""
 275        self.firstTime = True
 276        self.origin = ""
 277        self.directSubmit = False
 278        self.trustMeLikeAFool = False
 279
 280        self.logSubstitutions = {}
 281        self.logSubstitutions["<enter description here>"] = "%log%"
 282        self.logSubstitutions["\tDetails:"] = "\tDetails:  %log%"
 283
 284    def check(self):
 285        if len(p4CmdList("opened ...")) > 0:
 286            die("You have files opened with perforce! Close them before starting the sync.")
 287
 288    def start(self):
 289        if len(self.config) > 0 and not self.reset:
 290            die("Cannot start sync. Previous sync config found at %s\n"
 291                "If you want to start submitting again from scratch "
 292                "maybe you want to call git-p4 submit --reset" % self.configFile)
 293
 294        commits = []
 295        if self.directSubmit:
 296            commits.append("0")
 297        else:
 298            for line in read_pipe_lines("git rev-list --no-merges %s..%s" % (self.origin, self.master)):
 299                commits.append(line.strip())
 300            commits.reverse()
 301
 302        self.config["commits"] = commits
 303
 304    def prepareLogMessage(self, template, message):
 305        result = ""
 306
 307        for line in template.split("\n"):
 308            if line.startswith("#"):
 309                result += line + "\n"
 310                continue
 311
 312            substituted = False
 313            for key in self.logSubstitutions.keys():
 314                if line.find(key) != -1:
 315                    value = self.logSubstitutions[key]
 316                    value = value.replace("%log%", message)
 317                    if value != "@remove@":
 318                        result += line.replace(key, value) + "\n"
 319                    substituted = True
 320                    break
 321
 322            if not substituted:
 323                result += line + "\n"
 324
 325        return result
 326
 327    def applyCommit(self, id):
 328        if self.directSubmit:
 329            print "Applying local change in working directory/index"
 330            diff = self.diffStatus
 331        else:
 332            print "Applying %s" % (read_pipe("git log --max-count=1 --pretty=oneline %s" % id))
 333            diff = read_pipe_lines("git diff-tree -r --name-status \"%s^\" \"%s\"" % (id, id))
 334        filesToAdd = set()
 335        filesToDelete = set()
 336        editedFiles = set()
 337        for line in diff:
 338            modifier = line[0]
 339            path = line[1:].strip()
 340            if modifier == "M":
 341                system("p4 edit \"%s\"" % path)
 342                editedFiles.add(path)
 343            elif modifier == "A":
 344                filesToAdd.add(path)
 345                if path in filesToDelete:
 346                    filesToDelete.remove(path)
 347            elif modifier == "D":
 348                filesToDelete.add(path)
 349                if path in filesToAdd:
 350                    filesToAdd.remove(path)
 351            else:
 352                die("unknown modifier %s for %s" % (modifier, path))
 353
 354        if self.directSubmit:
 355            diffcmd = "cat \"%s\"" % self.diffFile
 356        else:
 357            diffcmd = "git format-patch -k --stdout \"%s^\"..\"%s\"" % (id, id)
 358        patchcmd = diffcmd + " | git apply "
 359        tryPatchCmd = patchcmd + "--check -"
 360        applyPatchCmd = patchcmd + "--check --apply -"
 361
 362        if os.system(tryPatchCmd) != 0:
 363            print "Unfortunately applying the change failed!"
 364            print "What do you want to do?"
 365            response = "x"
 366            while response != "s" and response != "a" and response != "w":
 367                response = raw_input("[s]kip this patch / [a]pply the patch forcibly "
 368                                     "and with .rej files / [w]rite the patch to a file (patch.txt) ")
 369            if response == "s":
 370                print "Skipping! Good luck with the next patches..."
 371                return
 372            elif response == "a":
 373                os.system(applyPatchCmd)
 374                if len(filesToAdd) > 0:
 375                    print "You may also want to call p4 add on the following files:"
 376                    print " ".join(filesToAdd)
 377                if len(filesToDelete):
 378                    print "The following files should be scheduled for deletion with p4 delete:"
 379                    print " ".join(filesToDelete)
 380                die("Please resolve and submit the conflict manually and "
 381                    + "continue afterwards with git-p4 submit --continue")
 382            elif response == "w":
 383                system(diffcmd + " > patch.txt")
 384                print "Patch saved to patch.txt in %s !" % self.clientPath
 385                die("Please resolve and submit the conflict manually and "
 386                    "continue afterwards with git-p4 submit --continue")
 387
 388        system(applyPatchCmd)
 389
 390        for f in filesToAdd:
 391            system("p4 add %s" % f)
 392        for f in filesToDelete:
 393            system("p4 revert %s" % f)
 394            system("p4 delete %s" % f)
 395
 396        logMessage = ""
 397        if not self.directSubmit:
 398            logMessage = extractLogMessageFromGitCommit(id)
 399            logMessage = logMessage.replace("\n", "\n\t")
 400            logMessage = logMessage.strip()
 401
 402        template = read_pipe("p4 change -o")
 403
 404        if self.interactive:
 405            submitTemplate = self.prepareLogMessage(template, logMessage)
 406            diff = read_pipe("p4 diff -du ...")
 407
 408            for newFile in filesToAdd:
 409                diff += "==== new file ====\n"
 410                diff += "--- /dev/null\n"
 411                diff += "+++ %s\n" % newFile
 412                f = open(newFile, "r")
 413                for line in f.readlines():
 414                    diff += "+" + line
 415                f.close()
 416
 417            separatorLine = "######## everything below this line is just the diff #######"
 418            if platform.system() == "Windows":
 419                separatorLine += "\r"
 420            separatorLine += "\n"
 421
 422            response = "e"
 423            if self.trustMeLikeAFool:
 424                response = "y"
 425
 426            firstIteration = True
 427            while response == "e":
 428                if not firstIteration:
 429                    response = raw_input("Do you want to submit this change? [y]es/[e]dit/[n]o/[s]kip ")
 430                firstIteration = False
 431                if response == "e":
 432                    [handle, fileName] = tempfile.mkstemp()
 433                    tmpFile = os.fdopen(handle, "w+")
 434                    tmpFile.write(submitTemplate + separatorLine + diff)
 435                    tmpFile.close()
 436                    defaultEditor = "vi"
 437                    if platform.system() == "Windows":
 438                        defaultEditor = "notepad"
 439                    editor = os.environ.get("EDITOR", defaultEditor);
 440                    system(editor + " " + fileName)
 441                    tmpFile = open(fileName, "rb")
 442                    message = tmpFile.read()
 443                    tmpFile.close()
 444                    os.remove(fileName)
 445                    submitTemplate = message[:message.index(separatorLine)]
 446
 447            if response == "y" or response == "yes":
 448               if self.dryRun:
 449                   print submitTemplate
 450                   raw_input("Press return to continue...")
 451               else:
 452                   if self.directSubmit:
 453                       print "Submitting to git first"
 454                       os.chdir(self.oldWorkingDirectory)
 455                       write_pipe("git commit -a -F -", submitTemplate)
 456                       os.chdir(self.clientPath)
 457
 458                   write_pipe("p4 submit -i", submitTemplate)
 459            elif response == "s":
 460                for f in editedFiles:
 461                    system("p4 revert \"%s\"" % f);
 462                for f in filesToAdd:
 463                    system("p4 revert \"%s\"" % f);
 464                    system("rm %s" %f)
 465                for f in filesToDelete:
 466                    system("p4 delete \"%s\"" % f);
 467                return
 468            else:
 469                print "Not submitting!"
 470                self.interactive = False
 471        else:
 472            fileName = "submit.txt"
 473            file = open(fileName, "w+")
 474            file.write(self.prepareLogMessage(template, logMessage))
 475            file.close()
 476            print ("Perforce submit template written as %s. "
 477                   + "Please review/edit and then use p4 submit -i < %s to submit directly!"
 478                   % (fileName, fileName))
 479
 480    def run(self, args):
 481        # make gitdir absolute so we can cd out into the perforce checkout
 482        os.environ["GIT_DIR"] = gitdir
 483
 484        if len(args) == 0:
 485            self.master = currentGitBranch()
 486            if len(self.master) == 0 or not gitBranchExists("refs/heads/%s" % self.master):
 487                die("Detecting current git branch failed!")
 488        elif len(args) == 1:
 489            self.master = args[0]
 490        else:
 491            return False
 492
 493        depotPath = ""
 494        settings = None
 495        if gitBranchExists("p4"):
 496            settings = extractSettingsGitLog(extractLogMessageFromGitCommit("p4"))
 497        if len(depotPath) == 0 and gitBranchExists("origin"):
 498            settings = extractSettingsGitLog(extractLogMessageFromGitCommit("origin"))
 499        depotPaths = settings['depot-paths']
 500
 501        if len(depotPath) == 0:
 502            print "Internal error: cannot locate perforce depot path from existing branches"
 503            sys.exit(128)
 504
 505        self.clientPath = p4Where(depotPath)
 506
 507        if len(self.clientPath) == 0:
 508            print "Error: Cannot locate perforce checkout of %s in client view" % depotPath
 509            sys.exit(128)
 510
 511        print "Perforce checkout for depot path %s located at %s" % (depotPath, self.clientPath)
 512        self.oldWorkingDirectory = os.getcwd()
 513
 514        if self.directSubmit:
 515            self.diffStatus = read_pipe_lines("git diff -r --name-status HEAD")
 516            if len(self.diffStatus) == 0:
 517                print "No changes in working directory to submit."
 518                return True
 519            patch = read_pipe("git diff -p --binary --diff-filter=ACMRTUXB HEAD")
 520            self.diffFile = self.gitdir + "/p4-git-diff"
 521            f = open(self.diffFile, "wb")
 522            f.write(patch)
 523            f.close();
 524
 525        os.chdir(self.clientPath)
 526        response = raw_input("Do you want to sync %s with p4 sync? [y]es/[n]o " % self.clientPath)
 527        if response == "y" or response == "yes":
 528            system("p4 sync ...")
 529
 530        if len(self.origin) == 0:
 531            if gitBranchExists("p4"):
 532                self.origin = "p4"
 533            else:
 534                self.origin = "origin"
 535
 536        if self.reset:
 537            self.firstTime = True
 538
 539        if len(self.substFile) > 0:
 540            for line in open(self.substFile, "r").readlines():
 541                tokens = line.strip().split("=")
 542                self.logSubstitutions[tokens[0]] = tokens[1]
 543
 544        self.check()
 545        self.configFile = self.gitdir + "/p4-git-sync.cfg"
 546        self.config = shelve.open(self.configFile, writeback=True)
 547
 548        if self.firstTime:
 549            self.start()
 550
 551        commits = self.config.get("commits", [])
 552
 553        while len(commits) > 0:
 554            self.firstTime = False
 555            commit = commits[0]
 556            commits = commits[1:]
 557            self.config["commits"] = commits
 558            self.applyCommit(commit)
 559            if not self.interactive:
 560                break
 561
 562        self.config.close()
 563
 564        if self.directSubmit:
 565            os.remove(self.diffFile)
 566
 567        if len(commits) == 0:
 568            if self.firstTime:
 569                print "No changes found to apply between %s and current HEAD" % self.origin
 570            else:
 571                print "All changes applied!"
 572                os.chdir(self.oldWorkingDirectory)
 573                response = raw_input("Do you want to sync from Perforce now using git-p4 rebase? [y]es/[n]o ")
 574                if response == "y" or response == "yes":
 575                    rebase = P4Rebase()
 576                    rebase.run([])
 577            os.remove(self.configFile)
 578
 579        return True
 580
 581class P4Sync(Command):
 582    def __init__(self):
 583        Command.__init__(self)
 584        self.options = [
 585                optparse.make_option("--branch", dest="branch"),
 586                optparse.make_option("--detect-branches", dest="detectBranches", action="store_true"),
 587                optparse.make_option("--changesfile", dest="changesFile"),
 588                optparse.make_option("--silent", dest="silent", action="store_true"),
 589                optparse.make_option("--detect-labels", dest="detectLabels", action="store_true"),
 590                optparse.make_option("--verbose", dest="verbose", action="store_true"),
 591                optparse.make_option("--import-local", dest="importIntoRemotes", action="store_false",
 592                                     help="Import into refs/heads/ , not refs/remotes"),
 593                optparse.make_option("--max-changes", dest="maxChanges"),
 594                optparse.make_option("--keep-path", dest="keepRepoPath", action='store_true',
 595                                     help="Keep entire BRANCH/DIR/SUBDIR prefix during import")
 596        ]
 597        self.description = """Imports from Perforce into a git repository.\n
 598    example:
 599    //depot/my/project/ -- to import the current head
 600    //depot/my/project/@all -- to import everything
 601    //depot/my/project/@1,6 -- to import only from revision 1 to 6
 602
 603    (a ... is not needed in the path p4 specification, it's added implicitly)"""
 604
 605        self.usage += " //depot/path[@revRange]"
 606        self.silent = False
 607        self.createdBranches = Set()
 608        self.committedChanges = Set()
 609        self.branch = ""
 610        self.detectBranches = False
 611        self.detectLabels = False
 612        self.changesFile = ""
 613        self.syncWithOrigin = True
 614        self.verbose = False
 615        self.importIntoRemotes = True
 616        self.maxChanges = ""
 617        self.isWindows = (platform.system() == "Windows")
 618        self.keepRepoPath = False
 619        self.depotPaths = None
 620
 621        if gitConfig("git-p4.syncFromOrigin") == "false":
 622            self.syncWithOrigin = False
 623
 624    def extractFilesFromCommit(self, commit):
 625        files = []
 626        fnum = 0
 627        while commit.has_key("depotFile%s" % fnum):
 628            path =  commit["depotFile%s" % fnum]
 629
 630            found = [p for p in self.depotPaths
 631                     if path.startswith (p)]
 632            if not found:
 633                fnum = fnum + 1
 634                continue
 635
 636            file = {}
 637            file["path"] = path
 638            file["rev"] = commit["rev%s" % fnum]
 639            file["action"] = commit["action%s" % fnum]
 640            file["type"] = commit["type%s" % fnum]
 641            files.append(file)
 642            fnum = fnum + 1
 643        return files
 644
 645    def stripRepoPath(self, path, prefixes):
 646        if self.keepRepoPath:
 647            prefixes = [re.sub("^(//[^/]+/).*", r'\1', prefixes[0])]
 648
 649        for p in prefixes:
 650            if path.startswith(p):
 651                path = path[len(p):]
 652
 653        return path
 654
 655    def splitFilesIntoBranches(self, commit):
 656        branches = {}
 657        fnum = 0
 658        while commit.has_key("depotFile%s" % fnum):
 659            path =  commit["depotFile%s" % fnum]
 660            found = [p for p in self.depotPaths
 661                     if path.startswith (p)]
 662            if not found:
 663                fnum = fnum + 1
 664                continue
 665
 666            file = {}
 667            file["path"] = path
 668            file["rev"] = commit["rev%s" % fnum]
 669            file["action"] = commit["action%s" % fnum]
 670            file["type"] = commit["type%s" % fnum]
 671            fnum = fnum + 1
 672
 673            relPath = self.stripRepoPath(path, self.depotPaths)
 674
 675            for branch in self.knownBranches.keys():
 676
 677                # add a trailing slash so that a commit into qt/4.2foo doesn't end up in qt/4.2
 678                if relPath.startswith(branch + "/"):
 679                    if branch not in branches:
 680                        branches[branch] = []
 681                    branches[branch].append(file)
 682
 683        return branches
 684
 685    ## Should move this out, doesn't use SELF.
 686    def readP4Files(self, files):
 687        files = [f for f in files
 688                 if f['action'] != 'delete']
 689
 690        if not files:
 691            return
 692
 693        filedata = p4CmdList('print %s' % ' '.join(['"%s#%s"' % (f['path'],
 694                                                                 f['rev'])
 695                                                    for f in files]))
 696
 697        j = 0;
 698        contents = {}
 699        while j < len(filedata):
 700            stat = filedata[j]
 701            j += 1
 702            text = ''
 703            while j < len(filedata) and filedata[j]['code'] in ('text',
 704                                                                'binary'):
 705                text += filedata[j]['data']
 706                j += 1
 707
 708            contents[stat['depotFile']] = text
 709
 710        for f in files:
 711            assert not f.has_key('data')
 712            f['data'] = contents[f['path']]
 713
 714    def commit(self, details, files, branch, branchPrefixes, parent = ""):
 715        epoch = details["time"]
 716        author = details["user"]
 717
 718        if self.verbose:
 719            print "commit into %s" % branch
 720
 721        # start with reading files; if that fails, we should not
 722        # create a commit.
 723        new_files = []
 724        for f in files:
 725            if [p for p in branchPrefixes if f['path'].startswith(p)]:
 726                new_files.append (f)
 727            else:
 728                sys.stderr.write("Ignoring file outside of prefix: %s\n" % path)
 729        files = new_files
 730        self.readP4Files(files)
 731
 732
 733
 734
 735        self.gitStream.write("commit %s\n" % branch)
 736#        gitStream.write("mark :%s\n" % details["change"])
 737        self.committedChanges.add(int(details["change"]))
 738        committer = ""
 739        if author not in self.users:
 740            self.getUserMapFromPerforceServer()
 741        if author in self.users:
 742            committer = "%s %s %s" % (self.users[author], epoch, self.tz)
 743        else:
 744            committer = "%s <a@b> %s %s" % (author, epoch, self.tz)
 745
 746        self.gitStream.write("committer %s\n" % committer)
 747
 748        self.gitStream.write("data <<EOT\n")
 749        self.gitStream.write(details["desc"])
 750        self.gitStream.write("\n[git-p4: depot-paths = \"%s\": change = %s: "
 751                             "options = %s]\n"
 752                             % (','.join (branchPrefixes), details["change"],
 753                                details['options']
 754                                ))
 755        self.gitStream.write("EOT\n\n")
 756
 757        if len(parent) > 0:
 758            if self.verbose:
 759                print "parent %s" % parent
 760            self.gitStream.write("from %s\n" % parent)
 761
 762        for file in files:
 763            if file["type"] == "apple":
 764                print "\nfile %s is a strange apple file that forks. Ignoring!" % file['path']
 765                continue
 766
 767            relPath = self.stripRepoPath(file['path'], branchPrefixes)
 768            if file["action"] == "delete":
 769                self.gitStream.write("D %s\n" % relPath)
 770            else:
 771                mode = 644
 772                if file["type"].startswith("x"):
 773                    mode = 755
 774
 775                data = file['data']
 776
 777                if self.isWindows and file["type"].endswith("text"):
 778                    data = data.replace("\r\n", "\n")
 779
 780                self.gitStream.write("M %d inline %s\n" % (mode, relPath))
 781                self.gitStream.write("data %s\n" % len(data))
 782                self.gitStream.write(data)
 783                self.gitStream.write("\n")
 784
 785        self.gitStream.write("\n")
 786
 787        change = int(details["change"])
 788
 789        if self.labels.has_key(change):
 790            label = self.labels[change]
 791            labelDetails = label[0]
 792            labelRevisions = label[1]
 793            if self.verbose:
 794                print "Change %s is labelled %s" % (change, labelDetails)
 795
 796            files = p4CmdList("files " + ' '.join (["%s...@%s" % (p, change)
 797                                                    for p in branchPrefixes]))
 798
 799            if len(files) == len(labelRevisions):
 800
 801                cleanedFiles = {}
 802                for info in files:
 803                    if info["action"] == "delete":
 804                        continue
 805                    cleanedFiles[info["depotFile"]] = info["rev"]
 806
 807                if cleanedFiles == labelRevisions:
 808                    self.gitStream.write("tag tag_%s\n" % labelDetails["label"])
 809                    self.gitStream.write("from %s\n" % branch)
 810
 811                    owner = labelDetails["Owner"]
 812                    tagger = ""
 813                    if author in self.users:
 814                        tagger = "%s %s %s" % (self.users[owner], epoch, self.tz)
 815                    else:
 816                        tagger = "%s <a@b> %s %s" % (owner, epoch, self.tz)
 817                    self.gitStream.write("tagger %s\n" % tagger)
 818                    self.gitStream.write("data <<EOT\n")
 819                    self.gitStream.write(labelDetails["Description"])
 820                    self.gitStream.write("EOT\n\n")
 821
 822                else:
 823                    if not self.silent:
 824                        print ("Tag %s does not match with change %s: files do not match."
 825                               % (labelDetails["label"], change))
 826
 827            else:
 828                if not self.silent:
 829                    print ("Tag %s does not match with change %s: file count is different."
 830                           % (labelDetails["label"], change))
 831
 832    def getUserCacheFilename(self):
 833        return os.environ["HOME"] + "/.gitp4-usercache.txt"
 834
 835    def getUserMapFromPerforceServer(self):
 836        if self.userMapFromPerforceServer:
 837            return
 838        self.users = {}
 839
 840        for output in p4CmdList("users"):
 841            if not output.has_key("User"):
 842                continue
 843            self.users[output["User"]] = output["FullName"] + " <" + output["Email"] + ">"
 844
 845
 846        s = ''
 847        for (key, val) in self.users.items():
 848            s += "%s\t%s\n" % (key, val)
 849
 850        open(self.getUserCacheFilename(), "wb").write(s)
 851        self.userMapFromPerforceServer = True
 852
 853    def loadUserMapFromCache(self):
 854        self.users = {}
 855        self.userMapFromPerforceServer = False
 856        try:
 857            cache = open(self.getUserCacheFilename(), "rb")
 858            lines = cache.readlines()
 859            cache.close()
 860            for line in lines:
 861                entry = line.strip().split("\t")
 862                self.users[entry[0]] = entry[1]
 863        except IOError:
 864            self.getUserMapFromPerforceServer()
 865
 866    def getLabels(self):
 867        self.labels = {}
 868
 869        l = p4CmdList("labels %s..." % ' '.join (self.depotPaths))
 870        if len(l) > 0 and not self.silent:
 871            print "Finding files belonging to labels in %s" % `self.depotPath`
 872
 873        for output in l:
 874            label = output["label"]
 875            revisions = {}
 876            newestChange = 0
 877            if self.verbose:
 878                print "Querying files for label %s" % label
 879            for file in p4CmdList("files "
 880                                  +  ' '.join (["%s...@%s" % (p, label)
 881                                                for p in self.depotPaths])):
 882                revisions[file["depotFile"]] = file["rev"]
 883                change = int(file["change"])
 884                if change > newestChange:
 885                    newestChange = change
 886
 887            self.labels[newestChange] = [output, revisions]
 888
 889        if self.verbose:
 890            print "Label changes: %s" % self.labels.keys()
 891
 892    def guessProjectName(self):
 893        for p in self.depotPaths:
 894            return p [p.strip().rfind("/") + 1:]
 895
 896    def getBranchMapping(self):
 897
 898        ## FIXME - what's a P4 projectName ?
 899        self.projectName = self.guessProjectName()
 900
 901        for info in p4CmdList("branches"):
 902            details = p4Cmd("branch -o %s" % info["branch"])
 903            viewIdx = 0
 904            while details.has_key("View%s" % viewIdx):
 905                paths = details["View%s" % viewIdx].split(" ")
 906                viewIdx = viewIdx + 1
 907                # require standard //depot/foo/... //depot/bar/... mapping
 908                if len(paths) != 2 or not paths[0].endswith("/...") or not paths[1].endswith("/..."):
 909                    continue
 910                source = paths[0]
 911                destination = paths[1]
 912                ## HACK
 913                if source.startswith(self.depotPaths[0]) and destination.startswith(self.depotPaths[0]):
 914                    source = source[len(self.depotPaths[0]):-4]
 915                    destination = destination[len(self.depotPaths[0]):-4]
 916                    if destination not in self.knownBranches:
 917                        self.knownBranches[destination] = source
 918                    if source not in self.knownBranches:
 919                        self.knownBranches[source] = source
 920
 921    def listExistingP4GitBranches(self):
 922        self.p4BranchesInGit = []
 923
 924        cmdline = "git rev-parse --symbolic "
 925        if self.importIntoRemotes:
 926            cmdline += " --remotes"
 927        else:
 928            cmdline += " --branches"
 929
 930        for line in read_pipe_lines(cmdline):
 931            line = line.strip()
 932
 933            ## only import to p4/
 934            if not line.startswith('p4/'):
 935                continue
 936            branch = line
 937            if self.importIntoRemotes:
 938                # strip off p4
 939                branch = re.sub ("^p4/", "", line)
 940
 941            self.p4BranchesInGit.append(branch)
 942            self.initialParents[self.refPrefix + branch] = parseRevision(line)
 943
 944    def createOrUpdateBranchesFromOrigin(self):
 945        if not self.silent:
 946            print ("Creating/updating branch(es) in %s based on origin branch(es)"
 947                   % self.refPrefix)
 948
 949        for line in read_pipe_lines("git rev-parse --symbolic --remotes"):
 950            line = line.strip()
 951            if (not line.startswith("origin/")) or line.endswith("HEAD\n"):
 952                continue
 953
 954            headName = line[len("origin/"):]
 955            remoteHead = self.refPrefix + headName
 956            originHead = "origin/" + headName
 957
 958            original = extractSettingsGitLog(extractLogMessageFromGitCommit(originHead))
 959            if (not original.has_key('depot-paths')
 960                or not original.has_key('change')):
 961                continue
 962
 963            update = False
 964            if not gitBranchExists(remoteHead):
 965                if self.verbose:
 966                    print "creating %s" % remoteHead
 967                update = True
 968            else:
 969                settings =  extractSettingsGitLog(extractLogMessageFromGitCommit(remoteHead))
 970                if settings.has_key('change') > 0:
 971                    if settings['depot-paths'] == original['depot-paths']:
 972                        originP4Change = int(original['change'])
 973                        p4Change = int(settings['change'])
 974                        if originP4Change > p4Change:
 975                            print ("%s (%s) is newer than %s (%s). "
 976                                   "Updating p4 branch from origin."
 977                                   % (originHead, originP4Change,
 978                                      remoteHead, p4Change))
 979                            update = True
 980                    else:
 981                        print ("Ignoring: %s was imported from %s while "
 982                               "%s was imported from %s"
 983                               % (originHead, ','.join(original['depot-paths']),
 984                                  remoteHead, ','.join(settings['depot-paths'])))
 985
 986            if update:
 987                system("git update-ref %s %s" % (remoteHead, originHead))
 988
 989    def updateOptionDict(self, d):
 990        option_keys = {}
 991        if self.keepRepoPath:
 992            option_keys['keepRepoPath'] = 1
 993
 994        d["options"] = ' '.join(sorted(option_keys.keys()))
 995
 996    def readOptions(self, d):
 997        self.keepRepoPath = (d.has_key('options')
 998                             and ('keepRepoPath' in d['options']))
 999
1000    def run(self, args):
1001        self.depotPaths = []
1002        self.changeRange = ""
1003        self.initialParent = ""
1004        self.previousDepotPaths = []
1005
1006        # map from branch depot path to parent branch
1007        self.knownBranches = {}
1008        self.initialParents = {}
1009        self.hasOrigin = gitBranchExists("origin")
1010
1011        if self.importIntoRemotes:
1012            self.refPrefix = "refs/remotes/p4/"
1013        else:
1014            self.refPrefix = "refs/heads/"
1015
1016        if self.syncWithOrigin and self.hasOrigin:
1017            if not self.silent:
1018                print "Syncing with origin first by calling git fetch origin"
1019            system("git fetch origin")
1020
1021        if len(self.branch) == 0:
1022            self.branch = self.refPrefix + "p4/master"
1023            if gitBranchExists("refs/heads/p4") and self.importIntoRemotes:
1024                system("git update-ref %s refs/heads/p4" % self.branch)
1025                system("git branch -D p4");
1026            # create it /after/ importing, when master exists
1027            if not gitBranchExists(self.refPrefix + "HEAD") and self.importIntoRemotes:
1028                system("git symbolic-ref %sHEAD %s" % (self.refPrefix, self.branch))
1029
1030        # TODO: should always look at previous commits,
1031        # merge with previous imports, if possible.
1032        if args == []:
1033            if self.hasOrigin:
1034                self.createOrUpdateBranchesFromOrigin()
1035            self.listExistingP4GitBranches()
1036
1037            if len(self.p4BranchesInGit) > 1:
1038                if not self.silent:
1039                    print "Importing from/into multiple branches"
1040                self.detectBranches = True
1041
1042            if self.verbose:
1043                print "branches: %s" % self.p4BranchesInGit
1044
1045            p4Change = 0
1046            for branch in self.p4BranchesInGit:
1047                logMsg =  extractLogMessageFromGitCommit(self.refPrefix + branch)
1048
1049                settings = extractSettingsGitLog(logMsg)
1050
1051                self.readOptions(settings)
1052                if (settings.has_key('depot-paths')
1053                    and settings.has_key ('change')):
1054                    change = int(settings['change']) + 1
1055                    p4Change = max(p4Change, change)
1056
1057                    depotPaths = sorted(settings['depot-paths'])
1058                    if self.previousDepotPaths == []:
1059                        self.previousDepotPaths = depotPaths
1060                    else:
1061                        paths = []
1062                        for (prev, cur) in zip(self.previousDepotPaths, depotPaths):
1063                            for i in range(0, min(len(cur), len(prev))):
1064                                if cur[i] <> prev[i]:
1065                                    i = i - 1
1066                                    break
1067
1068                            paths.append (cur[:i + 1])
1069
1070                        self.previousDepotPaths = paths
1071
1072            if p4Change > 0:
1073                self.depotPaths = sorted(self.previousDepotPaths)
1074                self.changeRange = "@%s,#head" % p4Change
1075                if not self.detectBranches:
1076                    self.initialParent = parseRevision(self.branch)
1077                if not self.silent and not self.detectBranches:
1078                    print "Performing incremental import into %s git branch" % self.branch
1079
1080        if not self.branch.startswith("refs/"):
1081            self.branch = "refs/heads/" + self.branch
1082
1083        if len(args) == 0 and self.depotPaths:
1084            if not self.silent:
1085                print "Depot paths: %s" % ' '.join(self.depotPaths)
1086        else:
1087            if self.depotPaths and self.depotPaths != args:
1088                print ("previous import used depot path %s and now %s was specified. "
1089                       "This doesn't work!" % (' '.join (self.depotPaths),
1090                                               ' '.join (args)))
1091                sys.exit(1)
1092
1093            self.depotPaths = sorted(args)
1094
1095        self.revision = ""
1096        self.users = {}
1097
1098        newPaths = []
1099        for p in self.depotPaths:
1100            if p.find("@") != -1:
1101                atIdx = p.index("@")
1102                self.changeRange = p[atIdx:]
1103                if self.changeRange == "@all":
1104                    self.changeRange = ""
1105                elif ',' not in self.changeRange:
1106                    self.revision = self.changeRange
1107                    self.changeRange = ""
1108                p = p[0:atIdx]
1109            elif p.find("#") != -1:
1110                hashIdx = p.index("#")
1111                self.revision = p[hashIdx:]
1112                p = p[0:hashIdx]
1113            elif self.previousDepotPaths == []:
1114                self.revision = "#head"
1115
1116            p = re.sub ("\.\.\.$", "", p)
1117            if not p.endswith("/"):
1118                p += "/"
1119
1120            newPaths.append(p)
1121
1122        self.depotPaths = newPaths
1123
1124
1125        self.loadUserMapFromCache()
1126        self.labels = {}
1127        if self.detectLabels:
1128            self.getLabels();
1129
1130        if self.detectBranches:
1131            self.getBranchMapping();
1132            if self.verbose:
1133                print "p4-git branches: %s" % self.p4BranchesInGit
1134                print "initial parents: %s" % self.initialParents
1135            for b in self.p4BranchesInGit:
1136                if b != "master":
1137
1138                    ## FIXME
1139                    b = b[len(self.projectName):]
1140                self.createdBranches.add(b)
1141
1142        self.tz = "%+03d%02d" % (- time.timezone / 3600, ((- time.timezone % 3600) / 60))
1143
1144        importProcess = subprocess.Popen(["git", "fast-import"],
1145                                         stdin=subprocess.PIPE, stdout=subprocess.PIPE,
1146                                         stderr=subprocess.PIPE);
1147        self.gitOutput = importProcess.stdout
1148        self.gitStream = importProcess.stdin
1149        self.gitError = importProcess.stderr
1150
1151        if self.revision:
1152            print "Doing initial import of %s from revision %s" % (' '.join(self.depotPaths), self.revision)
1153
1154            details = { "user" : "git perforce import user", "time" : int(time.time()) }
1155            details["desc"] = ("Initial import of %s from the state at revision %s"
1156                               % (' '.join(self.depotPaths), self.revision))
1157            details["change"] = self.revision
1158            newestRevision = 0
1159
1160            fileCnt = 0
1161            for info in p4CmdList("files "
1162                                  +  ' '.join(["%s...%s"
1163                                               % (p, self.revision)
1164                                               for p in self.depotPaths])):
1165
1166                if info['code'] == 'error':
1167                    sys.stderr.write("p4 returned an error: %s\n"
1168                                     % info['data'])
1169                    sys.exit(1)
1170
1171
1172                change = int(info["change"])
1173                if change > newestRevision:
1174                    newestRevision = change
1175
1176                if info["action"] == "delete":
1177                    # don't increase the file cnt, otherwise details["depotFile123"] will have gaps!
1178                    #fileCnt = fileCnt + 1
1179                    continue
1180
1181                for prop in ["depotFile", "rev", "action", "type" ]:
1182                    details["%s%s" % (prop, fileCnt)] = info[prop]
1183
1184                fileCnt = fileCnt + 1
1185
1186            details["change"] = newestRevision
1187            self.updateOptionDict(details)
1188            try:
1189                self.commit(details, self.extractFilesFromCommit(details), self.branch, self.depotPaths)
1190            except IOError:
1191                print "IO error with git fast-import. Is your git version recent enough?"
1192                print self.gitError.read()
1193
1194        else:
1195            changes = []
1196
1197            if len(self.changesFile) > 0:
1198                output = open(self.changesFile).readlines()
1199                changeSet = Set()
1200                for line in output:
1201                    changeSet.add(int(line))
1202
1203                for change in changeSet:
1204                    changes.append(change)
1205
1206                changes.sort()
1207            else:
1208                if self.verbose:
1209                    print "Getting p4 changes for %s...%s" % (', '.join(self.depotPaths),
1210                                                              self.changeRange)
1211                assert self.depotPaths
1212                output = read_pipe_lines("p4 changes " + ' '.join (["%s...%s" % (p, self.changeRange)
1213                                                                    for p in self.depotPaths]))
1214
1215                for line in output:
1216                    changeNum = line.split(" ")[1]
1217                    changes.append(changeNum)
1218
1219                changes.reverse()
1220
1221                if len(self.maxChanges) > 0:
1222                    changes = changes[0:min(int(self.maxChanges), len(changes))]
1223
1224            if len(changes) == 0:
1225                if not self.silent:
1226                    print "No changes to import!"
1227                return True
1228
1229            self.updatedBranches = set()
1230
1231            cnt = 1
1232            for change in changes:
1233                description = p4Cmd("describe %s" % change)
1234                self.updateOptionDict(description)
1235
1236                if not self.silent:
1237                    sys.stdout.write("\rImporting revision %s (%s%%)" % (change, cnt * 100 / len(changes)))
1238                    sys.stdout.flush()
1239                cnt = cnt + 1
1240
1241                try:
1242                    if self.detectBranches:
1243                        branches = self.splitFilesIntoBranches(description)
1244                        for branch in branches.keys():
1245                            ## HACK  --hwn
1246                            branchPrefix = self.depotPaths[0] + branch + "/"
1247
1248                            parent = ""
1249
1250                            filesForCommit = branches[branch]
1251
1252                            if self.verbose:
1253                                print "branch is %s" % branch
1254
1255                            self.updatedBranches.add(branch)
1256
1257                            if branch not in self.createdBranches:
1258                                self.createdBranches.add(branch)
1259                                parent = self.knownBranches[branch]
1260                                if parent == branch:
1261                                    parent = ""
1262                                elif self.verbose:
1263                                    print "parent determined through known branches: %s" % parent
1264
1265                            # main branch? use master
1266                            if branch == "main":
1267                                branch = "master"
1268                            else:
1269
1270                                ## FIXME
1271                                branch = self.projectName + branch
1272
1273                            if parent == "main":
1274                                parent = "master"
1275                            elif len(parent) > 0:
1276                                ## FIXME
1277                                parent = self.projectName + parent
1278
1279                            branch = self.refPrefix + branch
1280                            if len(parent) > 0:
1281                                parent = self.refPrefix + parent
1282
1283                            if self.verbose:
1284                                print "looking for initial parent for %s; current parent is %s" % (branch, parent)
1285
1286                            if len(parent) == 0 and branch in self.initialParents:
1287                                parent = self.initialParents[branch]
1288                                del self.initialParents[branch]
1289
1290                            self.commit(description, filesForCommit, branch, branchPrefix, parent)
1291                    else:
1292                        files = self.extractFilesFromCommit(description)
1293                        self.commit(description, files, self.branch, self.depotPaths,
1294                                    self.initialParent)
1295                        self.initialParent = ""
1296                except IOError:
1297                    print self.gitError.read()
1298                    sys.exit(1)
1299
1300            if not self.silent:
1301                print ""
1302                if len(self.updatedBranches) > 0:
1303                    sys.stdout.write("Updated branches: ")
1304                    for b in self.updatedBranches:
1305                        sys.stdout.write("%s " % b)
1306                    sys.stdout.write("\n")
1307
1308
1309        self.gitStream.close()
1310        if importProcess.wait() != 0:
1311            die("fast-import failed: %s" % self.gitError.read())
1312        self.gitOutput.close()
1313        self.gitError.close()
1314
1315        return True
1316
1317class P4Rebase(Command):
1318    def __init__(self):
1319        Command.__init__(self)
1320        self.options = [ ]
1321        self.description = ("Fetches the latest revision from perforce and "
1322                            + "rebases the current work (branch) against it")
1323
1324    def run(self, args):
1325        sync = P4Sync()
1326        sync.run([])
1327        print "Rebasing the current branch"
1328        oldHead = read_pipe("git rev-parse HEAD").strip()
1329        system("git rebase p4")
1330        system("git diff-tree --stat --summary -M %s HEAD" % oldHead)
1331        return True
1332
1333class P4Clone(P4Sync):
1334    def __init__(self):
1335        P4Sync.__init__(self)
1336        self.description = "Creates a new git repository and imports from Perforce into it"
1337        self.usage = "usage: %prog [options] //depot/path[@revRange]"
1338        self.options.append(
1339            optparse.make_option("--destination", dest="cloneDestination",
1340                                 action='store', default=None,
1341                                 help="where to leave result of the clone"))
1342        self.cloneDestination = None
1343        self.needsGit = False
1344
1345    def defaultDestination(self, args):
1346        ## TODO: use common prefix of args?
1347        depotPath = args[0]
1348        depotDir = re.sub("(@[^@]*)$", "", depotPath)
1349        depotDir = re.sub("(#[^#]*)$", "", depotDir)
1350        depotDir = re.sub(r"\.\.\.$,", "", depotDir)
1351        depotDir = re.sub(r"/$", "", depotDir)
1352        return os.path.split(depotDir)[1]
1353
1354    def run(self, args):
1355        if len(args) < 1:
1356            return False
1357
1358        if self.keepRepoPath and not self.cloneDestination:
1359            sys.stderr.write("Must specify destination for --keep-path\n")
1360            sys.exit(1)
1361
1362        depotPaths = args
1363        for p in depotPaths:
1364            if not p.startswith("//"):
1365                return False
1366
1367        if not self.cloneDestination:
1368            self.cloneDestination = self.defaultDestination()
1369
1370        print "Importing from %s into %s" % (', '.join(depotPaths), self.cloneDestination)
1371        os.makedirs(self.cloneDestination)
1372        os.chdir(self.cloneDestination)
1373        system("git init")
1374        self.gitdir = os.getcwd() + "/.git"
1375        if not P4Sync.run(self, depotPaths):
1376            return False
1377        if self.branch != "master":
1378            if gitBranchExists("refs/remotes/p4/master"):
1379                system("git branch master refs/remotes/p4/master")
1380                system("git checkout -f")
1381            else:
1382                print "Could not detect main branch. No checkout/master branch created."
1383
1384        return True
1385
1386class HelpFormatter(optparse.IndentedHelpFormatter):
1387    def __init__(self):
1388        optparse.IndentedHelpFormatter.__init__(self)
1389
1390    def format_description(self, description):
1391        if description:
1392            return description + "\n"
1393        else:
1394            return ""
1395
1396def printUsage(commands):
1397    print "usage: %s <command> [options]" % sys.argv[0]
1398    print ""
1399    print "valid commands: %s" % ", ".join(commands)
1400    print ""
1401    print "Try %s <command> --help for command specific help." % sys.argv[0]
1402    print ""
1403
1404commands = {
1405    "debug" : P4Debug,
1406    "submit" : P4Submit,
1407    "sync" : P4Sync,
1408    "rebase" : P4Rebase,
1409    "clone" : P4Clone,
1410    "rollback" : P4RollBack
1411}
1412
1413
1414def main():
1415    if len(sys.argv[1:]) == 0:
1416        printUsage(commands.keys())
1417        sys.exit(2)
1418
1419    cmd = ""
1420    cmdName = sys.argv[1]
1421    try:
1422        klass = commands[cmdName]
1423        cmd = klass()
1424    except KeyError:
1425        print "unknown command %s" % cmdName
1426        print ""
1427        printUsage(commands.keys())
1428        sys.exit(2)
1429
1430    options = cmd.options
1431    cmd.gitdir = os.environ.get("GIT_DIR", None)
1432
1433    args = sys.argv[2:]
1434
1435    if len(options) > 0:
1436        options.append(optparse.make_option("--git-dir", dest="gitdir"))
1437
1438        parser = optparse.OptionParser(cmd.usage.replace("%prog", "%prog " + cmdName),
1439                                       options,
1440                                       description = cmd.description,
1441                                       formatter = HelpFormatter())
1442
1443        (cmd, args) = parser.parse_args(sys.argv[2:], cmd);
1444    global verbose
1445    verbose = cmd.verbose
1446    if cmd.needsGit:
1447        if cmd.gitdir == None:
1448            cmd.gitdir = os.path.abspath(".git")
1449            if not isValidGitDir(cmd.gitdir):
1450                cmd.gitdir = read_pipe("git rev-parse --git-dir").strip()
1451                if os.path.exists(cmd.gitdir):
1452                    cdup = read_pipe("git rev-parse --show-cdup").strip()
1453                    if len(cdup) > 0:
1454                        os.chdir(cdup);
1455
1456        if not isValidGitDir(cmd.gitdir):
1457            if isValidGitDir(cmd.gitdir + "/.git"):
1458                cmd.gitdir += "/.git"
1459            else:
1460                die("fatal: cannot locate git repository at %s" % cmd.gitdir)
1461
1462        os.environ["GIT_DIR"] = cmd.gitdir
1463
1464    if not cmd.run(args):
1465        parser.print_help()
1466
1467
1468if __name__ == '__main__':
1469    main()