Andrew's git / gitweb.git / contrib/fast-import/git-p4
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contrib / fast-import / git-p4on commit look for 'text' and 'binary' files. (7530a40)
   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    values['depot-paths'] = values.get("depot-paths").split(',')
 157    return values
 158
 159def gitBranchExists(branch):
 160    proc = subprocess.Popen(["git", "rev-parse", branch],
 161                            stderr=subprocess.PIPE, stdout=subprocess.PIPE);
 162    return proc.wait() == 0;
 163
 164def gitConfig(key):
 165    return read_pipe("git config %s" % key, ignore_error=True).strip()
 166
 167class Command:
 168    def __init__(self):
 169        self.usage = "usage: %prog [options]"
 170        self.needsGit = True
 171
 172class P4Debug(Command):
 173    def __init__(self):
 174        Command.__init__(self)
 175        self.options = [
 176            optparse.make_option("--verbose", dest="verbose", action="store_true",
 177                                 default=False),
 178            ]
 179        self.description = "A tool to debug the output of p4 -G."
 180        self.needsGit = False
 181        self.verbose = False
 182
 183    def run(self, args):
 184        j = 0
 185        for output in p4CmdList(" ".join(args)):
 186            print 'Element: %d' % j
 187            j += 1
 188            print output
 189        return True
 190
 191class P4RollBack(Command):
 192    def __init__(self):
 193        Command.__init__(self)
 194        self.options = [
 195            optparse.make_option("--verbose", dest="verbose", action="store_true"),
 196            optparse.make_option("--local", dest="rollbackLocalBranches", action="store_true")
 197        ]
 198        self.description = "A tool to debug the multi-branch import. Don't use :)"
 199        self.verbose = False
 200        self.rollbackLocalBranches = False
 201
 202    def run(self, args):
 203        if len(args) != 1:
 204            return False
 205        maxChange = int(args[0])
 206
 207        if "p4ExitCode" in p4Cmd("changes -m 1"):
 208            die("Problems executing p4");
 209
 210        if self.rollbackLocalBranches:
 211            refPrefix = "refs/heads/"
 212            lines = read_pipe_lines("git rev-parse --symbolic --branches")
 213        else:
 214            refPrefix = "refs/remotes/"
 215            lines = read_pipe_lines("git rev-parse --symbolic --remotes")
 216
 217        for line in lines:
 218            if self.rollbackLocalBranches or (line.startswith("p4/") and line != "p4/HEAD\n"):
 219                line = line.strip()
 220                ref = refPrefix + line
 221                log = extractLogMessageFromGitCommit(ref)
 222                settings = extractSettingsGitLog(log)
 223
 224                depotPaths = settings['depot-paths']
 225                change = settings['change']
 226
 227                changed = False
 228
 229                if len(p4Cmd("changes -m 1 "  + ' '.join (['%s...@%s' % (p, maxChange)
 230                                                           for p in depotPaths]))) == 0:
 231                    print "Branch %s did not exist at change %s, deleting." % (ref, maxChange)
 232                    system("git update-ref -d %s `git rev-parse %s`" % (ref, ref))
 233                    continue
 234
 235                while change and int(change) > maxChange:
 236                    changed = True
 237                    if self.verbose:
 238                        print "%s is at %s ; rewinding towards %s" % (ref, change, maxChange)
 239                    system("git update-ref %s \"%s^\"" % (ref, ref))
 240                    log = extractLogMessageFromGitCommit(ref)
 241                    settings =  extractSettingsGitLog(log)
 242
 243
 244                    depotPaths = settings['depot-paths']
 245                    change = settings['change']
 246
 247                if changed:
 248                    print "%s rewound to %s" % (ref, change)
 249
 250        return True
 251
 252class P4Submit(Command):
 253    def __init__(self):
 254        Command.__init__(self)
 255        self.options = [
 256                optparse.make_option("--continue", action="store_false", dest="firstTime"),
 257                optparse.make_option("--verbose", dest="verbose", action="store_true"),
 258                optparse.make_option("--origin", dest="origin"),
 259                optparse.make_option("--reset", action="store_true", dest="reset"),
 260                optparse.make_option("--log-substitutions", dest="substFile"),
 261                optparse.make_option("--dry-run", action="store_true"),
 262                optparse.make_option("--direct", dest="directSubmit", action="store_true"),
 263                optparse.make_option("--trust-me-like-a-fool", dest="trustMeLikeAFool", action="store_true"),
 264        ]
 265        self.description = "Submit changes from git to the perforce depot."
 266        self.usage += " [name of git branch to submit into perforce depot]"
 267        self.firstTime = True
 268        self.reset = False
 269        self.interactive = True
 270        self.dryRun = False
 271        self.substFile = ""
 272        self.firstTime = True
 273        self.origin = ""
 274        self.directSubmit = False
 275        self.trustMeLikeAFool = False
 276
 277        self.logSubstitutions = {}
 278        self.logSubstitutions["<enter description here>"] = "%log%"
 279        self.logSubstitutions["\tDetails:"] = "\tDetails:  %log%"
 280
 281    def check(self):
 282        if len(p4CmdList("opened ...")) > 0:
 283            die("You have files opened with perforce! Close them before starting the sync.")
 284
 285    def start(self):
 286        if len(self.config) > 0 and not self.reset:
 287            die("Cannot start sync. Previous sync config found at %s\n"
 288                "If you want to start submitting again from scratch "
 289                "maybe you want to call git-p4 submit --reset" % self.configFile)
 290
 291        commits = []
 292        if self.directSubmit:
 293            commits.append("0")
 294        else:
 295            for line in read_pipe_lines("git rev-list --no-merges %s..%s" % (self.origin, self.master)):
 296                commits.append(line.strip())
 297            commits.reverse()
 298
 299        self.config["commits"] = commits
 300
 301    def prepareLogMessage(self, template, message):
 302        result = ""
 303
 304        for line in template.split("\n"):
 305            if line.startswith("#"):
 306                result += line + "\n"
 307                continue
 308
 309            substituted = False
 310            for key in self.logSubstitutions.keys():
 311                if line.find(key) != -1:
 312                    value = self.logSubstitutions[key]
 313                    value = value.replace("%log%", message)
 314                    if value != "@remove@":
 315                        result += line.replace(key, value) + "\n"
 316                    substituted = True
 317                    break
 318
 319            if not substituted:
 320                result += line + "\n"
 321
 322        return result
 323
 324    def applyCommit(self, id):
 325        if self.directSubmit:
 326            print "Applying local change in working directory/index"
 327            diff = self.diffStatus
 328        else:
 329            print "Applying %s" % (read_pipe("git log --max-count=1 --pretty=oneline %s" % id))
 330            diff = read_pipe_lines("git diff-tree -r --name-status \"%s^\" \"%s\"" % (id, id))
 331        filesToAdd = set()
 332        filesToDelete = set()
 333        editedFiles = set()
 334        for line in diff:
 335            modifier = line[0]
 336            path = line[1:].strip()
 337            if modifier == "M":
 338                system("p4 edit \"%s\"" % path)
 339                editedFiles.add(path)
 340            elif modifier == "A":
 341                filesToAdd.add(path)
 342                if path in filesToDelete:
 343                    filesToDelete.remove(path)
 344            elif modifier == "D":
 345                filesToDelete.add(path)
 346                if path in filesToAdd:
 347                    filesToAdd.remove(path)
 348            else:
 349                die("unknown modifier %s for %s" % (modifier, path))
 350
 351        if self.directSubmit:
 352            diffcmd = "cat \"%s\"" % self.diffFile
 353        else:
 354            diffcmd = "git format-patch -k --stdout \"%s^\"..\"%s\"" % (id, id)
 355        patchcmd = diffcmd + " | git apply "
 356        tryPatchCmd = patchcmd + "--check -"
 357        applyPatchCmd = patchcmd + "--check --apply -"
 358
 359        if os.system(tryPatchCmd) != 0:
 360            print "Unfortunately applying the change failed!"
 361            print "What do you want to do?"
 362            response = "x"
 363            while response != "s" and response != "a" and response != "w":
 364                response = raw_input("[s]kip this patch / [a]pply the patch forcibly "
 365                                     "and with .rej files / [w]rite the patch to a file (patch.txt) ")
 366            if response == "s":
 367                print "Skipping! Good luck with the next patches..."
 368                return
 369            elif response == "a":
 370                os.system(applyPatchCmd)
 371                if len(filesToAdd) > 0:
 372                    print "You may also want to call p4 add on the following files:"
 373                    print " ".join(filesToAdd)
 374                if len(filesToDelete):
 375                    print "The following files should be scheduled for deletion with p4 delete:"
 376                    print " ".join(filesToDelete)
 377                die("Please resolve and submit the conflict manually and "
 378                    + "continue afterwards with git-p4 submit --continue")
 379            elif response == "w":
 380                system(diffcmd + " > patch.txt")
 381                print "Patch saved to patch.txt in %s !" % self.clientPath
 382                die("Please resolve and submit the conflict manually and "
 383                    "continue afterwards with git-p4 submit --continue")
 384
 385        system(applyPatchCmd)
 386
 387        for f in filesToAdd:
 388            system("p4 add %s" % f)
 389        for f in filesToDelete:
 390            system("p4 revert %s" % f)
 391            system("p4 delete %s" % f)
 392
 393        logMessage = ""
 394        if not self.directSubmit:
 395            logMessage = extractLogMessageFromGitCommit(id)
 396            logMessage = logMessage.replace("\n", "\n\t")
 397            logMessage = logMessage.strip()
 398
 399        template = read_pipe("p4 change -o")
 400
 401        if self.interactive:
 402            submitTemplate = self.prepareLogMessage(template, logMessage)
 403            diff = read_pipe("p4 diff -du ...")
 404
 405            for newFile in filesToAdd:
 406                diff += "==== new file ====\n"
 407                diff += "--- /dev/null\n"
 408                diff += "+++ %s\n" % newFile
 409                f = open(newFile, "r")
 410                for line in f.readlines():
 411                    diff += "+" + line
 412                f.close()
 413
 414            separatorLine = "######## everything below this line is just the diff #######"
 415            if platform.system() == "Windows":
 416                separatorLine += "\r"
 417            separatorLine += "\n"
 418
 419            response = "e"
 420            if self.trustMeLikeAFool:
 421                response = "y"
 422
 423            firstIteration = True
 424            while response == "e":
 425                if not firstIteration:
 426                    response = raw_input("Do you want to submit this change? [y]es/[e]dit/[n]o/[s]kip ")
 427                firstIteration = False
 428                if response == "e":
 429                    [handle, fileName] = tempfile.mkstemp()
 430                    tmpFile = os.fdopen(handle, "w+")
 431                    tmpFile.write(submitTemplate + separatorLine + diff)
 432                    tmpFile.close()
 433                    defaultEditor = "vi"
 434                    if platform.system() == "Windows":
 435                        defaultEditor = "notepad"
 436                    editor = os.environ.get("EDITOR", defaultEditor);
 437                    system(editor + " " + fileName)
 438                    tmpFile = open(fileName, "rb")
 439                    message = tmpFile.read()
 440                    tmpFile.close()
 441                    os.remove(fileName)
 442                    submitTemplate = message[:message.index(separatorLine)]
 443
 444            if response == "y" or response == "yes":
 445               if self.dryRun:
 446                   print submitTemplate
 447                   raw_input("Press return to continue...")
 448               else:
 449                   if self.directSubmit:
 450                       print "Submitting to git first"
 451                       os.chdir(self.oldWorkingDirectory)
 452                       write_pipe("git commit -a -F -", submitTemplate)
 453                       os.chdir(self.clientPath)
 454
 455                   write_pipe("p4 submit -i", submitTemplate)
 456            elif response == "s":
 457                for f in editedFiles:
 458                    system("p4 revert \"%s\"" % f);
 459                for f in filesToAdd:
 460                    system("p4 revert \"%s\"" % f);
 461                    system("rm %s" %f)
 462                for f in filesToDelete:
 463                    system("p4 delete \"%s\"" % f);
 464                return
 465            else:
 466                print "Not submitting!"
 467                self.interactive = False
 468        else:
 469            fileName = "submit.txt"
 470            file = open(fileName, "w+")
 471            file.write(self.prepareLogMessage(template, logMessage))
 472            file.close()
 473            print ("Perforce submit template written as %s. "
 474                   + "Please review/edit and then use p4 submit -i < %s to submit directly!"
 475                   % (fileName, fileName))
 476
 477    def run(self, args):
 478        # make gitdir absolute so we can cd out into the perforce checkout
 479        os.environ["GIT_DIR"] = gitdir
 480
 481        if len(args) == 0:
 482            self.master = currentGitBranch()
 483            if len(self.master) == 0 or not gitBranchExists("refs/heads/%s" % self.master):
 484                die("Detecting current git branch failed!")
 485        elif len(args) == 1:
 486            self.master = args[0]
 487        else:
 488            return False
 489
 490        depotPath = ""
 491        settings = None
 492        if gitBranchExists("p4"):
 493            settings = extractSettingsGitLog(extractLogMessageFromGitCommit("p4"))
 494        if len(depotPath) == 0 and gitBranchExists("origin"):
 495            settings = extractSettingsGitLog(extractLogMessageFromGitCommit("origin"))
 496        depotPaths = settings['depot-paths']
 497
 498        if len(depotPath) == 0:
 499            print "Internal error: cannot locate perforce depot path from existing branches"
 500            sys.exit(128)
 501
 502        self.clientPath = p4Where(depotPath)
 503
 504        if len(self.clientPath) == 0:
 505            print "Error: Cannot locate perforce checkout of %s in client view" % depotPath
 506            sys.exit(128)
 507
 508        print "Perforce checkout for depot path %s located at %s" % (depotPath, self.clientPath)
 509        self.oldWorkingDirectory = os.getcwd()
 510
 511        if self.directSubmit:
 512            self.diffStatus = read_pipe_lines("git diff -r --name-status HEAD")
 513            if len(self.diffStatus) == 0:
 514                print "No changes in working directory to submit."
 515                return True
 516            patch = read_pipe("git diff -p --binary --diff-filter=ACMRTUXB HEAD")
 517            self.diffFile = self.gitdir + "/p4-git-diff"
 518            f = open(self.diffFile, "wb")
 519            f.write(patch)
 520            f.close();
 521
 522        os.chdir(self.clientPath)
 523        response = raw_input("Do you want to sync %s with p4 sync? [y]es/[n]o " % self.clientPath)
 524        if response == "y" or response == "yes":
 525            system("p4 sync ...")
 526
 527        if len(self.origin) == 0:
 528            if gitBranchExists("p4"):
 529                self.origin = "p4"
 530            else:
 531                self.origin = "origin"
 532
 533        if self.reset:
 534            self.firstTime = True
 535
 536        if len(self.substFile) > 0:
 537            for line in open(self.substFile, "r").readlines():
 538                tokens = line.strip().split("=")
 539                self.logSubstitutions[tokens[0]] = tokens[1]
 540
 541        self.check()
 542        self.configFile = self.gitdir + "/p4-git-sync.cfg"
 543        self.config = shelve.open(self.configFile, writeback=True)
 544
 545        if self.firstTime:
 546            self.start()
 547
 548        commits = self.config.get("commits", [])
 549
 550        while len(commits) > 0:
 551            self.firstTime = False
 552            commit = commits[0]
 553            commits = commits[1:]
 554            self.config["commits"] = commits
 555            self.applyCommit(commit)
 556            if not self.interactive:
 557                break
 558
 559        self.config.close()
 560
 561        if self.directSubmit:
 562            os.remove(self.diffFile)
 563
 564        if len(commits) == 0:
 565            if self.firstTime:
 566                print "No changes found to apply between %s and current HEAD" % self.origin
 567            else:
 568                print "All changes applied!"
 569                os.chdir(self.oldWorkingDirectory)
 570                response = raw_input("Do you want to sync from Perforce now using git-p4 rebase? [y]es/[n]o ")
 571                if response == "y" or response == "yes":
 572                    rebase = P4Rebase()
 573                    rebase.run([])
 574            os.remove(self.configFile)
 575
 576        return True
 577
 578class P4Sync(Command):
 579    def __init__(self):
 580        Command.__init__(self)
 581        self.options = [
 582                optparse.make_option("--branch", dest="branch"),
 583                optparse.make_option("--detect-branches", dest="detectBranches", action="store_true"),
 584                optparse.make_option("--changesfile", dest="changesFile"),
 585                optparse.make_option("--silent", dest="silent", action="store_true"),
 586                optparse.make_option("--detect-labels", dest="detectLabels", action="store_true"),
 587                optparse.make_option("--verbose", dest="verbose", action="store_true"),
 588                optparse.make_option("--import-local", dest="importIntoRemotes", action="store_false",
 589                                     help="Import into refs/heads/ , not refs/remotes"),
 590                optparse.make_option("--max-changes", dest="maxChanges"),
 591                optparse.make_option("--keep-path", dest="keepRepoPath", action='store_true',
 592                                     help="Keep entire BRANCH/DIR/SUBDIR prefix during import")
 593        ]
 594        self.description = """Imports from Perforce into a git repository.\n
 595    example:
 596    //depot/my/project/ -- to import the current head
 597    //depot/my/project/@all -- to import everything
 598    //depot/my/project/@1,6 -- to import only from revision 1 to 6
 599
 600    (a ... is not needed in the path p4 specification, it's added implicitly)"""
 601
 602        self.usage += " //depot/path[@revRange]"
 603        self.silent = False
 604        self.createdBranches = Set()
 605        self.committedChanges = Set()
 606        self.branch = ""
 607        self.detectBranches = False
 608        self.detectLabels = False
 609        self.changesFile = ""
 610        self.syncWithOrigin = True
 611        self.verbose = False
 612        self.importIntoRemotes = True
 613        self.maxChanges = ""
 614        self.isWindows = (platform.system() == "Windows")
 615        self.keepRepoPath = False
 616        self.depotPaths = None
 617
 618        if gitConfig("git-p4.syncFromOrigin") == "false":
 619            self.syncWithOrigin = False
 620
 621    def extractFilesFromCommit(self, commit):
 622        files = []
 623        fnum = 0
 624        while commit.has_key("depotFile%s" % fnum):
 625            path =  commit["depotFile%s" % fnum]
 626
 627            found = [p for p in self.depotPaths
 628                     if path.startswith (p)]
 629            if not found:
 630                fnum = fnum + 1
 631                continue
 632
 633            file = {}
 634            file["path"] = path
 635            file["rev"] = commit["rev%s" % fnum]
 636            file["action"] = commit["action%s" % fnum]
 637            file["type"] = commit["type%s" % fnum]
 638            files.append(file)
 639            fnum = fnum + 1
 640        return files
 641
 642    def stripRepoPath(self, path, prefixes):
 643        if self.keepRepoPath:
 644            prefixes = [re.sub("^(//[^/]+/).*", r'\1', prefixes[0])]
 645
 646        for p in prefixes:
 647            if path.startswith(p):
 648                path = path[len(p):]
 649
 650        return path
 651
 652    def splitFilesIntoBranches(self, commit):
 653        branches = {}
 654        fnum = 0
 655        while commit.has_key("depotFile%s" % fnum):
 656            path =  commit["depotFile%s" % fnum]
 657            found = [p for p in self.depotPaths
 658                     if path.startswith (p)]
 659            if not found:
 660                fnum = fnum + 1
 661                continue
 662
 663            file = {}
 664            file["path"] = path
 665            file["rev"] = commit["rev%s" % fnum]
 666            file["action"] = commit["action%s" % fnum]
 667            file["type"] = commit["type%s" % fnum]
 668            fnum = fnum + 1
 669
 670            relPath = self.stripRepoPath(path, self.depotPaths)
 671
 672            for branch in self.knownBranches.keys():
 673
 674                # add a trailing slash so that a commit into qt/4.2foo doesn't end up in qt/4.2
 675                if relPath.startswith(branch + "/"):
 676                    if branch not in branches:
 677                        branches[branch] = []
 678                    branches[branch].append(file)
 679
 680        return branches
 681
 682    ## Should move this out, doesn't use SELF.
 683    def readP4Files(self, files):
 684        files = [f for f in files
 685                 if f['action'] != 'delete']
 686
 687        if not files:
 688            return
 689
 690        filedata = p4CmdList('print %s' % ' '.join(['"%s#%s"' % (f['path'],
 691                                                                 f['rev'])
 692                                                    for f in files]))
 693
 694        j = 0;
 695        contents = {}
 696        while j < len(filedata):
 697            stat = filedata[j]
 698            j += 1
 699            text = ''
 700            while j < len(filedata) and filedata[j]['code'] in ('text',
 701                                                                'binary'):
 702                text += filedata[j]['data']
 703                j += 1
 704
 705            contents[stat['depotFile']] = text
 706
 707        for f in files:
 708            assert not f.has_key('data')
 709            f['data'] = contents[f['path']]
 710
 711    def commit(self, details, files, branch, branchPrefixes, parent = ""):
 712        epoch = details["time"]
 713        author = details["user"]
 714
 715        if self.verbose:
 716            print "commit into %s" % branch
 717
 718        # start with reading files; if that fails, we should not
 719        # create a commit.
 720        new_files = []
 721        for f in files:
 722            if [p for p in branchPrefixes if f['path'].startswith(p)]:
 723                new_files.append (f)
 724            else:
 725                sys.stderr.write("Ignoring file outside of prefix: %s\n" % path)
 726        files = new_files
 727        self.readP4Files(files)
 728
 729
 730
 731
 732        self.gitStream.write("commit %s\n" % branch)
 733#        gitStream.write("mark :%s\n" % details["change"])
 734        self.committedChanges.add(int(details["change"]))
 735        committer = ""
 736        if author not in self.users:
 737            self.getUserMapFromPerforceServer()
 738        if author in self.users:
 739            committer = "%s %s %s" % (self.users[author], epoch, self.tz)
 740        else:
 741            committer = "%s <a@b> %s %s" % (author, epoch, self.tz)
 742
 743        self.gitStream.write("committer %s\n" % committer)
 744
 745        self.gitStream.write("data <<EOT\n")
 746        self.gitStream.write(details["desc"])
 747        self.gitStream.write("\n[git-p4: depot-paths = \"%s\": change = %s: "
 748                             "options = %s]\n"
 749                             % (','.join (branchPrefixes), details["change"],
 750                                details['options']
 751                                ))
 752        self.gitStream.write("EOT\n\n")
 753
 754        if len(parent) > 0:
 755            if self.verbose:
 756                print "parent %s" % parent
 757            self.gitStream.write("from %s\n" % parent)
 758
 759        for file in files:
 760            if file["type"] == "apple":
 761                print "\nfile %s is a strange apple file that forks. Ignoring!" % file['path']
 762                continue
 763
 764            relPath = self.stripRepoPath(file['path'], branchPrefixes)
 765            if file["action"] == "delete":
 766                self.gitStream.write("D %s\n" % relPath)
 767            else:
 768                mode = 644
 769                if file["type"].startswith("x"):
 770                    mode = 755
 771
 772                data = file['data']
 773
 774                if self.isWindows and file["type"].endswith("text"):
 775                    data = data.replace("\r\n", "\n")
 776
 777                self.gitStream.write("M %d inline %s\n" % (mode, relPath))
 778                self.gitStream.write("data %s\n" % len(data))
 779                self.gitStream.write(data)
 780                self.gitStream.write("\n")
 781
 782        self.gitStream.write("\n")
 783
 784        change = int(details["change"])
 785
 786        if self.labels.has_key(change):
 787            label = self.labels[change]
 788            labelDetails = label[0]
 789            labelRevisions = label[1]
 790            if self.verbose:
 791                print "Change %s is labelled %s" % (change, labelDetails)
 792
 793            files = p4CmdList("files " + ' '.join (["%s...@%s" % (p, change)
 794                                                    for p in branchPrefixes]))
 795
 796            if len(files) == len(labelRevisions):
 797
 798                cleanedFiles = {}
 799                for info in files:
 800                    if info["action"] == "delete":
 801                        continue
 802                    cleanedFiles[info["depotFile"]] = info["rev"]
 803
 804                if cleanedFiles == labelRevisions:
 805                    self.gitStream.write("tag tag_%s\n" % labelDetails["label"])
 806                    self.gitStream.write("from %s\n" % branch)
 807
 808                    owner = labelDetails["Owner"]
 809                    tagger = ""
 810                    if author in self.users:
 811                        tagger = "%s %s %s" % (self.users[owner], epoch, self.tz)
 812                    else:
 813                        tagger = "%s <a@b> %s %s" % (owner, epoch, self.tz)
 814                    self.gitStream.write("tagger %s\n" % tagger)
 815                    self.gitStream.write("data <<EOT\n")
 816                    self.gitStream.write(labelDetails["Description"])
 817                    self.gitStream.write("EOT\n\n")
 818
 819                else:
 820                    if not self.silent:
 821                        print ("Tag %s does not match with change %s: files do not match."
 822                               % (labelDetails["label"], change))
 823
 824            else:
 825                if not self.silent:
 826                    print ("Tag %s does not match with change %s: file count is different."
 827                           % (labelDetails["label"], change))
 828
 829    def getUserCacheFilename(self):
 830        return os.environ["HOME"] + "/.gitp4-usercache.txt"
 831
 832    def getUserMapFromPerforceServer(self):
 833        if self.userMapFromPerforceServer:
 834            return
 835        self.users = {}
 836
 837        for output in p4CmdList("users"):
 838            if not output.has_key("User"):
 839                continue
 840            self.users[output["User"]] = output["FullName"] + " <" + output["Email"] + ">"
 841
 842
 843        s = ''
 844        for (key, val) in self.users.items():
 845            s += "%s\t%s\n" % (key, val)
 846
 847        open(self.getUserCacheFilename(), "wb").write(s)
 848        self.userMapFromPerforceServer = True
 849
 850    def loadUserMapFromCache(self):
 851        self.users = {}
 852        self.userMapFromPerforceServer = False
 853        try:
 854            cache = open(self.getUserCacheFilename(), "rb")
 855            lines = cache.readlines()
 856            cache.close()
 857            for line in lines:
 858                entry = line.strip().split("\t")
 859                self.users[entry[0]] = entry[1]
 860        except IOError:
 861            self.getUserMapFromPerforceServer()
 862
 863    def getLabels(self):
 864        self.labels = {}
 865
 866        l = p4CmdList("labels %s..." % ' '.join (self.depotPaths))
 867        if len(l) > 0 and not self.silent:
 868            print "Finding files belonging to labels in %s" % `self.depotPath`
 869
 870        for output in l:
 871            label = output["label"]
 872            revisions = {}
 873            newestChange = 0
 874            if self.verbose:
 875                print "Querying files for label %s" % label
 876            for file in p4CmdList("files "
 877                                  +  ' '.join (["%s...@%s" % (p, label)
 878                                                for p in self.depotPaths])):
 879                revisions[file["depotFile"]] = file["rev"]
 880                change = int(file["change"])
 881                if change > newestChange:
 882                    newestChange = change
 883
 884            self.labels[newestChange] = [output, revisions]
 885
 886        if self.verbose:
 887            print "Label changes: %s" % self.labels.keys()
 888
 889    def guessProjectName(self):
 890        for p in self.depotPaths:
 891            return p [p.strip().rfind("/") + 1:]
 892
 893    def getBranchMapping(self):
 894
 895        ## FIXME - what's a P4 projectName ?
 896        self.projectName = self.guessProjectName()
 897
 898        for info in p4CmdList("branches"):
 899            details = p4Cmd("branch -o %s" % info["branch"])
 900            viewIdx = 0
 901            while details.has_key("View%s" % viewIdx):
 902                paths = details["View%s" % viewIdx].split(" ")
 903                viewIdx = viewIdx + 1
 904                # require standard //depot/foo/... //depot/bar/... mapping
 905                if len(paths) != 2 or not paths[0].endswith("/...") or not paths[1].endswith("/..."):
 906                    continue
 907                source = paths[0]
 908                destination = paths[1]
 909                if source.startswith(self.depotPath) and destination.startswith(self.depotPath):
 910                    source = source[len(self.depotPath):-4]
 911                    destination = destination[len(self.depotPath):-4]
 912                    if destination not in self.knownBranches:
 913                        self.knownBranches[destination] = source
 914                    if source not in self.knownBranches:
 915                        self.knownBranches[source] = source
 916
 917    def listExistingP4GitBranches(self):
 918        self.p4BranchesInGit = []
 919
 920        cmdline = "git rev-parse --symbolic "
 921        if self.importIntoRemotes:
 922            cmdline += " --remotes"
 923        else:
 924            cmdline += " --branches"
 925
 926        for line in read_pipe_lines(cmdline):
 927            line = line.strip()
 928
 929            ## only import to p4/
 930            if not line.startswith('p4/'):
 931                continue
 932            branch = line
 933            if self.importIntoRemotes:
 934                # strip off p4
 935                branch = re.sub ("^p4/", "", line)
 936
 937            self.p4BranchesInGit.append(branch)
 938            self.initialParents[self.refPrefix + branch] = parseRevision(line)
 939
 940    def createOrUpdateBranchesFromOrigin(self):
 941        if not self.silent:
 942            print ("Creating/updating branch(es) in %s based on origin branch(es)"
 943                   % self.refPrefix)
 944
 945        for line in read_pipe_lines("git rev-parse --symbolic --remotes"):
 946            line = line.strip()
 947            if (not line.startswith("origin/")) or line.endswith("HEAD\n"):
 948                continue
 949
 950            headName = line[len("origin/"):]
 951            remoteHead = self.refPrefix + headName
 952            originHead = "origin/" + headName
 953
 954            original = extractSettingsGitLog(extractLogMessageFromGitCommit(originHead))
 955            if (not original.has_key('depot-paths')
 956                or not original.has_key('change')):
 957                continue
 958
 959            update = False
 960            if not gitBranchExists(remoteHead):
 961                if self.verbose:
 962                    print "creating %s" % remoteHead
 963                update = True
 964            else:
 965                settings =  extractSettingsGitLog(extractLogMessageFromGitCommit(remoteHead))
 966                if settings.has_key('change') > 0:
 967                    if settings['depot-paths'] == original['depot-paths']:
 968                        originP4Change = int(original['change'])
 969                        p4Change = int(settings['change'])
 970                        if originP4Change > p4Change:
 971                            print ("%s (%s) is newer than %s (%s). "
 972                                   "Updating p4 branch from origin."
 973                                   % (originHead, originP4Change,
 974                                      remoteHead, p4Change))
 975                            update = True
 976                    else:
 977                        print ("Ignoring: %s was imported from %s while "
 978                               "%s was imported from %s"
 979                               % (originHead, ','.join(original['depot-paths']),
 980                                  remoteHead, ','.join(settings['depot-paths'])))
 981
 982            if update:
 983                system("git update-ref %s %s" % (remoteHead, originHead))
 984
 985    def updateOptionDict(self, d):
 986        option_keys = {}
 987        if self.keepRepoPath:
 988            option_keys['keepRepoPath'] = 1
 989
 990        d["options"] = ' '.join(sorted(option_keys.keys()))
 991
 992    def readOptions(self, d):
 993        self.keepRepoPath = (d.has_key('options')
 994                             and ('keepRepoPath' in d['options']))
 995
 996    def run(self, args):
 997        self.depotPaths = []
 998        self.changeRange = ""
 999        self.initialParent = ""
1000        self.previousDepotPaths = []
1001
1002        # map from branch depot path to parent branch
1003        self.knownBranches = {}
1004        self.initialParents = {}
1005        self.hasOrigin = gitBranchExists("origin")
1006
1007        if self.importIntoRemotes:
1008            self.refPrefix = "refs/remotes/p4/"
1009        else:
1010            self.refPrefix = "refs/heads/"
1011
1012        if self.syncWithOrigin and self.hasOrigin:
1013            if not self.silent:
1014                print "Syncing with origin first by calling git fetch origin"
1015            system("git fetch origin")
1016
1017        if len(self.branch) == 0:
1018            self.branch = self.refPrefix + "p4/master"
1019            if gitBranchExists("refs/heads/p4") and self.importIntoRemotes:
1020                system("git update-ref %s refs/heads/p4" % self.branch)
1021                system("git branch -D p4");
1022            # create it /after/ importing, when master exists
1023            if not gitBranchExists(self.refPrefix + "HEAD") and self.importIntoRemotes:
1024                system("git symbolic-ref %sHEAD %s" % (self.refPrefix, self.branch))
1025
1026        # TODO: should always look at previous commits,
1027        # merge with previous imports, if possible.
1028        if args == []:
1029            if self.hasOrigin:
1030                self.createOrUpdateBranchesFromOrigin()
1031            self.listExistingP4GitBranches()
1032
1033            if len(self.p4BranchesInGit) > 1:
1034                if not self.silent:
1035                    print "Importing from/into multiple branches"
1036                self.detectBranches = True
1037
1038            if self.verbose:
1039                print "branches: %s" % self.p4BranchesInGit
1040
1041            p4Change = 0
1042            for branch in self.p4BranchesInGit:
1043                logMsg =  extractLogMessageFromGitCommit(self.refPrefix + branch)
1044
1045                settings = extractSettingsGitLog(logMsg)
1046
1047                self.readOptions(settings)
1048                if (settings.has_key('depot-paths')
1049                    and settings.has_key ('change')):
1050                    change = int(settings['change']) + 1
1051                    p4Change = max(p4Change, change)
1052
1053                    depotPaths = sorted(settings['depot-paths'])
1054                    if self.previousDepotPaths == []:
1055                        self.previousDepotPaths = depotPaths
1056                    else:
1057                        paths = []
1058                        for (prev, cur) in zip(self.previousDepotPaths, depotPaths):
1059                            for i in range(0, max(len(cur), len(prev))):
1060                                if cur[i] <> prev[i]:
1061                                    break
1062
1063                            paths.append (cur[:i])
1064
1065                        self.previousDepotPaths = paths
1066
1067            if p4Change > 0:
1068                self.depotPaths = sorted(self.previousDepotPaths)
1069                self.changeRange = "@%s,#head" % p4Change
1070                self.initialParent = parseRevision(self.branch)
1071                if not self.silent and not self.detectBranches:
1072                    print "Performing incremental import into %s git branch" % self.branch
1073
1074        if not self.branch.startswith("refs/"):
1075            self.branch = "refs/heads/" + self.branch
1076
1077        if len(args) == 0 and self.depotPaths:
1078            if not self.silent:
1079                print "Depot paths: %s" % ' '.join(self.depotPaths)
1080        else:
1081            if self.depotPaths and self.depotPaths != args:
1082                print ("previous import used depot path %s and now %s was specified. "
1083                       "This doesn't work!" % (' '.join (self.depotPaths),
1084                                               ' '.join (args)))
1085                sys.exit(1)
1086
1087            self.depotPaths = sorted(args)
1088
1089        self.revision = ""
1090        self.users = {}
1091
1092        newPaths = []
1093        for p in self.depotPaths:
1094            if p.find("@") != -1:
1095                atIdx = p.index("@")
1096                self.changeRange = p[atIdx:]
1097                if self.changeRange == "@all":
1098                    self.changeRange = ""
1099                elif ',' not in self.changeRange:
1100                    self.revision = self.changeRange
1101                    self.changeRange = ""
1102                p = p[0:atIdx]
1103            elif p.find("#") != -1:
1104                hashIdx = p.index("#")
1105                self.revision = p[hashIdx:]
1106                p = p[0:hashIdx]
1107            elif self.previousDepotPaths == []:
1108                self.revision = "#head"
1109
1110            p = re.sub ("\.\.\.$", "", p)
1111            if not p.endswith("/"):
1112                p += "/"
1113
1114            newPaths.append(p)
1115
1116        self.depotPaths = newPaths
1117
1118
1119        self.loadUserMapFromCache()
1120        self.labels = {}
1121        if self.detectLabels:
1122            self.getLabels();
1123
1124        if self.detectBranches:
1125            self.getBranchMapping();
1126            if self.verbose:
1127                print "p4-git branches: %s" % self.p4BranchesInGit
1128                print "initial parents: %s" % self.initialParents
1129            for b in self.p4BranchesInGit:
1130                if b != "master":
1131
1132                    ## FIXME
1133                    b = b[len(self.projectName):]
1134                self.createdBranches.add(b)
1135
1136        self.tz = "%+03d%02d" % (- time.timezone / 3600, ((- time.timezone % 3600) / 60))
1137
1138        importProcess = subprocess.Popen(["git", "fast-import"],
1139                                         stdin=subprocess.PIPE, stdout=subprocess.PIPE,
1140                                         stderr=subprocess.PIPE);
1141        self.gitOutput = importProcess.stdout
1142        self.gitStream = importProcess.stdin
1143        self.gitError = importProcess.stderr
1144
1145        if self.revision:
1146            print "Doing initial import of %s from revision %s" % (' '.join(self.depotPaths), self.revision)
1147
1148            details = { "user" : "git perforce import user", "time" : int(time.time()) }
1149            details["desc"] = ("Initial import of %s from the state at revision %s"
1150                               % (' '.join(self.depotPaths), self.revision))
1151            details["change"] = self.revision
1152            newestRevision = 0
1153
1154            fileCnt = 0
1155            for info in p4CmdList("files "
1156                                  +  ' '.join(["%s...%s"
1157                                               % (p, self.revision)
1158                                               for p in self.depotPaths])):
1159
1160                if info['code'] == 'error':
1161                    sys.stderr.write("p4 returned an error: %s\n"
1162                                     % info['data'])
1163                    sys.exit(1)
1164
1165
1166                change = int(info["change"])
1167                if change > newestRevision:
1168                    newestRevision = change
1169
1170                if info["action"] == "delete":
1171                    # don't increase the file cnt, otherwise details["depotFile123"] will have gaps!
1172                    #fileCnt = fileCnt + 1
1173                    continue
1174
1175                for prop in ["depotFile", "rev", "action", "type" ]:
1176                    details["%s%s" % (prop, fileCnt)] = info[prop]
1177
1178                fileCnt = fileCnt + 1
1179
1180            details["change"] = newestRevision
1181            self.updateOptionDict(details)
1182            try:
1183                self.commit(details, self.extractFilesFromCommit(details), self.branch, self.depotPaths)
1184            except IOError:
1185                print "IO error with git fast-import. Is your git version recent enough?"
1186                print self.gitError.read()
1187
1188        else:
1189            changes = []
1190
1191            if len(self.changesFile) > 0:
1192                output = open(self.changesFile).readlines()
1193                changeSet = Set()
1194                for line in output:
1195                    changeSet.add(int(line))
1196
1197                for change in changeSet:
1198                    changes.append(change)
1199
1200                changes.sort()
1201            else:
1202                if self.verbose:
1203                    print "Getting p4 changes for %s...%s" % (', '.join(self.depotPaths),
1204                                                              self.changeRange)
1205                assert self.depotPaths
1206                output = read_pipe_lines("p4 changes " + ' '.join (["%s...%s" % (p, self.changeRange)
1207                                                                    for p in self.depotPaths]))
1208
1209                for line in output:
1210                    changeNum = line.split(" ")[1]
1211                    changes.append(changeNum)
1212
1213                changes.reverse()
1214
1215                if len(self.maxChanges) > 0:
1216                    changes = changes[0:min(int(self.maxChanges), len(changes))]
1217
1218            if len(changes) == 0:
1219                if not self.silent:
1220                    print "No changes to import!"
1221                return True
1222
1223            self.updatedBranches = set()
1224
1225            cnt = 1
1226            for change in changes:
1227                description = p4Cmd("describe %s" % change)
1228                self.updateOptionDict(description)
1229
1230                if not self.silent:
1231                    sys.stdout.write("\rImporting revision %s (%s%%)" % (change, cnt * 100 / len(changes)))
1232                    sys.stdout.flush()
1233                cnt = cnt + 1
1234
1235                try:
1236                    if self.detectBranches:
1237                        branches = self.splitFilesIntoBranches(description)
1238                        for branch in branches.keys():
1239                            ## HACK  --hwn
1240                            branchPrefix = self.depotPaths[0] + branch + "/"
1241
1242                            parent = ""
1243
1244                            filesForCommit = branches[branch]
1245
1246                            if self.verbose:
1247                                print "branch is %s" % branch
1248
1249                            self.updatedBranches.add(branch)
1250
1251                            if branch not in self.createdBranches:
1252                                self.createdBranches.add(branch)
1253                                parent = self.knownBranches[branch]
1254                                if parent == branch:
1255                                    parent = ""
1256                                elif self.verbose:
1257                                    print "parent determined through known branches: %s" % parent
1258
1259                            # main branch? use master
1260                            if branch == "main":
1261                                branch = "master"
1262                            else:
1263
1264                                ## FIXME
1265                                branch = self.projectName + branch
1266
1267                            if parent == "main":
1268                                parent = "master"
1269                            elif len(parent) > 0:
1270                                ## FIXME
1271                                parent = self.projectName + parent
1272
1273                            branch = self.refPrefix + branch
1274                            if len(parent) > 0:
1275                                parent = self.refPrefix + parent
1276
1277                            if self.verbose:
1278                                print "looking for initial parent for %s; current parent is %s" % (branch, parent)
1279
1280                            if len(parent) == 0 and branch in self.initialParents:
1281                                parent = self.initialParents[branch]
1282                                del self.initialParents[branch]
1283
1284                            self.commit(description, filesForCommit, branch, branchPrefix, parent)
1285                    else:
1286                        files = self.extractFilesFromCommit(description)
1287                        self.commit(description, files, self.branch, self.depotPaths,
1288                                    self.initialParent)
1289                        self.initialParent = ""
1290                except IOError:
1291                    print self.gitError.read()
1292                    sys.exit(1)
1293
1294            if not self.silent:
1295                print ""
1296                if len(self.updatedBranches) > 0:
1297                    sys.stdout.write("Updated branches: ")
1298                    for b in self.updatedBranches:
1299                        sys.stdout.write("%s " % b)
1300                    sys.stdout.write("\n")
1301
1302
1303        self.gitStream.close()
1304        if importProcess.wait() != 0:
1305            die("fast-import failed: %s" % self.gitError.read())
1306        self.gitOutput.close()
1307        self.gitError.close()
1308
1309        return True
1310
1311class P4Rebase(Command):
1312    def __init__(self):
1313        Command.__init__(self)
1314        self.options = [ ]
1315        self.description = ("Fetches the latest revision from perforce and "
1316                            + "rebases the current work (branch) against it")
1317
1318    def run(self, args):
1319        sync = P4Sync()
1320        sync.run([])
1321        print "Rebasing the current branch"
1322        oldHead = read_pipe("git rev-parse HEAD").strip()
1323        system("git rebase p4")
1324        system("git diff-tree --stat --summary -M %s HEAD" % oldHead)
1325        return True
1326
1327class P4Clone(P4Sync):
1328    def __init__(self):
1329        P4Sync.__init__(self)
1330        self.description = "Creates a new git repository and imports from Perforce into it"
1331        self.usage = "usage: %prog [options] //depot/path[@revRange]"
1332        self.options.append(
1333            optparse.make_option("--destination", dest="cloneDestination",
1334                                 action='store', default=None,
1335                                 help="where to leave result of the clone"))
1336        self.cloneDestination = None
1337        self.needsGit = False
1338
1339    def defaultDestination(self, args):
1340        ## TODO: use common prefix of args?
1341        depotPath = args[0]
1342        depotDir = re.sub("(@[^@]*)$", "", depotPath)
1343        depotDir = re.sub("(#[^#]*)$", "", depotDir)
1344        depotDir = re.sub(r"\.\.\.$,", "", depotDir)
1345        depotDir = re.sub(r"/$", "", depotDir)
1346        return os.path.split(depotDir)[1]
1347
1348    def run(self, args):
1349        if len(args) < 1:
1350            return False
1351
1352        if self.keepRepoPath and not self.cloneDestination:
1353            sys.stderr.write("Must specify destination for --keep-path\n")
1354            sys.exit(1)
1355
1356        depotPaths = args
1357        for p in depotPaths:
1358            if not p.startswith("//"):
1359                return False
1360
1361        if not self.cloneDestination:
1362            self.cloneDestination = self.defaultDestination()
1363
1364        print "Importing from %s into %s" % (', '.join(depotPaths), self.cloneDestination)
1365        os.makedirs(self.cloneDestination)
1366        os.chdir(self.cloneDestination)
1367        system("git init")
1368        self.gitdir = os.getcwd() + "/.git"
1369        if not P4Sync.run(self, depotPaths):
1370            return False
1371        if self.branch != "master":
1372            if gitBranchExists("refs/remotes/p4/master"):
1373                system("git branch master refs/remotes/p4/master")
1374                system("git checkout -f")
1375            else:
1376                print "Could not detect main branch. No checkout/master branch created."
1377
1378        return True
1379
1380class HelpFormatter(optparse.IndentedHelpFormatter):
1381    def __init__(self):
1382        optparse.IndentedHelpFormatter.__init__(self)
1383
1384    def format_description(self, description):
1385        if description:
1386            return description + "\n"
1387        else:
1388            return ""
1389
1390def printUsage(commands):
1391    print "usage: %s <command> [options]" % sys.argv[0]
1392    print ""
1393    print "valid commands: %s" % ", ".join(commands)
1394    print ""
1395    print "Try %s <command> --help for command specific help." % sys.argv[0]
1396    print ""
1397
1398commands = {
1399    "debug" : P4Debug,
1400    "submit" : P4Submit,
1401    "sync" : P4Sync,
1402    "rebase" : P4Rebase,
1403    "clone" : P4Clone,
1404    "rollback" : P4RollBack
1405}
1406
1407
1408def main():
1409    if len(sys.argv[1:]) == 0:
1410        printUsage(commands.keys())
1411        sys.exit(2)
1412
1413    cmd = ""
1414    cmdName = sys.argv[1]
1415    try:
1416        klass = commands[cmdName]
1417        cmd = klass()
1418    except KeyError:
1419        print "unknown command %s" % cmdName
1420        print ""
1421        printUsage(commands.keys())
1422        sys.exit(2)
1423
1424    options = cmd.options
1425    cmd.gitdir = os.environ.get("GIT_DIR", None)
1426
1427    args = sys.argv[2:]
1428
1429    if len(options) > 0:
1430        options.append(optparse.make_option("--git-dir", dest="gitdir"))
1431
1432        parser = optparse.OptionParser(cmd.usage.replace("%prog", "%prog " + cmdName),
1433                                       options,
1434                                       description = cmd.description,
1435                                       formatter = HelpFormatter())
1436
1437        (cmd, args) = parser.parse_args(sys.argv[2:], cmd);
1438    global verbose
1439    verbose = cmd.verbose
1440    if cmd.needsGit:
1441        if cmd.gitdir == None:
1442            cmd.gitdir = os.path.abspath(".git")
1443            if not isValidGitDir(cmd.gitdir):
1444                cmd.gitdir = read_pipe("git rev-parse --git-dir").strip()
1445                if os.path.exists(cmd.gitdir):
1446                    cdup = read_pipe("git rev-parse --show-cdup").strip()
1447                    if len(cdup) > 0:
1448                        os.chdir(cdup);
1449
1450        if not isValidGitDir(cmd.gitdir):
1451            if isValidGitDir(cmd.gitdir + "/.git"):
1452                cmd.gitdir += "/.git"
1453            else:
1454                die("fatal: cannot locate git repository at %s" % cmd.gitdir)
1455
1456        os.environ["GIT_DIR"] = cmd.gitdir
1457
1458    if not cmd.run(args):
1459        parser.print_help()
1460
1461
1462if __name__ == '__main__':
1463    main()