Removed cleantags command. It doesn't have any meaning anymore.
[gitweb.git] / contrib / fast-import / git-p4
index 44a07c27ceb89716a0763358a607d62fd63c7d9b..910c69b534e3a5ba7de6301917a2974394e39052 100755 (executable)
@@ -7,13 +7,18 @@
 #            2007 Trolltech ASA
 # License: MIT <http://www.opensource.org/licenses/mit-license.php>
 #
+# TODO: Add an option to sync/rebase to fetch and rebase from origin first.
+#
 
-import optparse, sys, os, marshal, popen2, shelve
-import tempfile, getopt, sha, os.path, time
+import optparse, sys, os, marshal, popen2, subprocess, shelve
+import tempfile, getopt, sha, os.path, time, platform
 from sets import Set;
 
 gitdir = os.environ.get("GIT_DIR", "")
 
+def mypopen(command):
+    return os.popen(command, "rb");
+
 def p4CmdList(cmd):
     cmd = "p4 -G %s" % cmd
     pipe = os.popen(cmd, "rb")
@@ -57,13 +62,16 @@ def die(msg):
     sys.exit(1)
 
 def currentGitBranch():
-    return os.popen("git name-rev HEAD").read().split(" ")[1][:-1]
+    return mypopen("git name-rev HEAD").read().split(" ")[1][:-1]
 
 def isValidGitDir(path):
     if os.path.exists(path + "/HEAD") and os.path.exists(path + "/refs") and os.path.exists(path + "/objects"):
         return True;
     return False
 
+def parseRevision(ref):
+    return mypopen("git rev-parse %s" % ref).read()[:-1]
+
 def system(cmd):
     if os.system(cmd) != 0:
         die("command failed: %s" % cmd)
@@ -71,10 +79,10 @@ def system(cmd):
 def extractLogMessageFromGitCommit(commit):
     logMessage = ""
     foundTitle = False
-    for log in os.popen("git cat-file commit %s" % commit).readlines():
+    for log in mypopen("git cat-file commit %s" % commit).readlines():
        if not foundTitle:
            if len(log) == 1:
-               foundTitle = 1
+               foundTitle = True
            continue
 
        logMessage += log
@@ -100,9 +108,8 @@ def extractDepotPathAndChangeFromGitLog(log):
     return values.get("depot-path"), values.get("change")
 
 def gitBranchExists(branch):
-    if os.system("git rev-parse %s 2>/dev/null >/dev/null" % branch) == 0:
-        return True
-    return False
+    proc = subprocess.Popen(["git", "rev-parse", branch], stderr=subprocess.PIPE, stdout=subprocess.PIPE);
+    return proc.wait() == 0;
 
 class Command:
     def __init__(self):
@@ -122,44 +129,6 @@ class P4Debug(Command):
             print output
         return True
 
-class P4CleanTags(Command):
-    def __init__(self):
-        Command.__init__(self)
-        self.options = [
-#                optparse.make_option("--branch", dest="branch", default="refs/heads/master")
-        ]
-        self.description = "A tool to remove stale unused tags from incremental perforce imports."
-    def run(self, args):
-        branch = currentGitBranch()
-        print "Cleaning out stale p4 import tags..."
-        sout, sin, serr = popen2.popen3("git name-rev --tags `git rev-parse %s`" % branch)
-        output = sout.read()
-        try:
-            tagIdx = output.index(" tags/p4/")
-        except:
-            print "Cannot find any p4/* tag. Nothing to do."
-            sys.exit(0)
-
-        try:
-            caretIdx = output.index("^")
-        except:
-            caretIdx = len(output) - 1
-        rev = int(output[tagIdx + 9 : caretIdx])
-
-        allTags = os.popen("git tag -l p4/").readlines()
-        for i in range(len(allTags)):
-            allTags[i] = int(allTags[i][3:-1])
-
-        allTags.sort()
-
-        allTags.remove(rev)
-
-        for rev in allTags:
-            print os.popen("git tag -d p4/%s" % rev).read()
-
-        print "%s tags removed." % len(allTags)
-        return True
-
 class P4Submit(Command):
     def __init__(self):
         Command.__init__(self)
@@ -170,7 +139,6 @@ class P4Submit(Command):
                 optparse.make_option("--log-substitutions", dest="substFile"),
                 optparse.make_option("--noninteractive", action="store_false"),
                 optparse.make_option("--dry-run", action="store_true"),
-                optparse.make_option("--apply-as-patch", action="store_true", dest="applyAsPatch")
         ]
         self.description = "Submit changes from git to the perforce depot."
         self.usage += " [name of git branch to submit into perforce depot]"
@@ -181,7 +149,6 @@ class P4Submit(Command):
         self.substFile = ""
         self.firstTime = True
         self.origin = ""
-        self.applyAsPatch = True
 
         self.logSubstitutions = {}
         self.logSubstitutions["<enter description here>"] = "%log%"
@@ -193,19 +160,15 @@ class P4Submit(Command):
 
     def start(self):
         if len(self.config) > 0 and not self.reset:
-            die("Cannot start sync. Previous sync config found at %s" % self.configFile)
+            die("Cannot start sync. Previous sync config found at %s\nIf you want to start submitting again from scratch maybe you want to call git-p4 submit --reset" % self.configFile)
 
         commits = []
-        for line in os.popen("git rev-list --no-merges %s..%s" % (self.origin, self.master)).readlines():
+        for line in mypopen("git rev-list --no-merges %s..%s" % (self.origin, self.master)).readlines():
             commits.append(line[:-1])
         commits.reverse()
 
         self.config["commits"] = commits
 
-        if not self.applyAsPatch:
-            print "Creating temporary p4-sync branch from %s ..." % self.origin
-            system("git checkout -f -b p4-sync %s" % self.origin)
-
     def prepareLogMessage(self, template, message):
         result = ""
 
@@ -230,15 +193,17 @@ class P4Submit(Command):
         return result
 
     def apply(self, id):
-        print "Applying %s" % (os.popen("git log --max-count=1 --pretty=oneline %s" % id).read())
-        diff = os.popen("git diff-tree -r --name-status \"%s^\" \"%s\"" % (id, id)).readlines()
+        print "Applying %s" % (mypopen("git log --max-count=1 --pretty=oneline %s" % id).read())
+        diff = mypopen("git diff-tree -r --name-status \"%s^\" \"%s\"" % (id, id)).readlines()
         filesToAdd = set()
         filesToDelete = set()
+        editedFiles = set()
         for line in diff:
             modifier = line[0]
             path = line[1:].strip()
             if modifier == "M":
-                system("p4 edit %s" % path)
+                system("p4 edit \"%s\"" % path)
+                editedFiles.add(path)
             elif modifier == "A":
                 filesToAdd.add(path)
                 if path in filesToDelete:
@@ -250,11 +215,33 @@ class P4Submit(Command):
             else:
                 die("unknown modifier %s for %s" % (modifier, path))
 
-        if self.applyAsPatch:
-            system("git diff-tree -p --diff-filter=ACMRTUXB \"%s^\" \"%s\" | patch -p1" % (id, id))
-        else:
-            system("git diff-files --name-only -z | git update-index --remove -z --stdin")
-            system("git cherry-pick --no-commit \"%s\"" % id)
+        diffcmd = "git diff-tree -p --diff-filter=ACMRTUXB \"%s^\" \"%s\"" % (id, id)
+        patchcmd = diffcmd + " | patch -p1"
+
+        if os.system(patchcmd + " --dry-run --silent") != 0:
+            print "Unfortunately applying the change failed!"
+            print "What do you want to do?"
+            response = "x"
+            while response != "s" and response != "a" and response != "w":
+                response = raw_input("[s]kip this patch / [a]pply the patch forcibly and with .rej files / [w]rite the patch to a file (patch.txt) ")
+            if response == "s":
+                print "Skipping! Good luck with the next patches..."
+                return
+            elif response == "a":
+                os.system(patchcmd)
+                if len(filesToAdd) > 0:
+                    print "You may also want to call p4 add on the following files:"
+                    print " ".join(filesToAdd)
+                if len(filesToDelete):
+                    print "The following files should be scheduled for deletion with p4 delete:"
+                    print " ".join(filesToDelete)
+                die("Please resolve and submit the conflict manually and continue afterwards with git-p4 submit --continue")
+            elif response == "w":
+                system(diffcmd + " > patch.txt")
+                print "Patch saved to patch.txt in %s !" % self.clientPath
+                die("Please resolve and submit the conflict manually and continue afterwards with git-p4 submit --continue")
+
+        system(patchcmd)
 
         for f in filesToAdd:
             system("p4 add %s" % f)
@@ -266,11 +253,11 @@ class P4Submit(Command):
         logMessage = logMessage.replace("\n", "\n\t")
         logMessage = logMessage[:-1]
 
-        template = os.popen("p4 change -o").read()
+        template = mypopen("p4 change -o").read()
 
         if self.interactive:
             submitTemplate = self.prepareLogMessage(template, logMessage)
-            diff = os.popen("p4 diff -du ...").read()
+            diff = mypopen("p4 diff -du ...").read()
 
             for newFile in filesToAdd:
                 diff += "==== new file ====\n"
@@ -281,22 +268,28 @@ class P4Submit(Command):
                     diff += "+" + line
                 f.close()
 
-            separatorLine = "######## everything below this line is just the diff #######\n"
+            separatorLine = "######## everything below this line is just the diff #######"
+            if platform.system() == "Windows":
+                separatorLine += "\r"
+            separatorLine += "\n"
 
             response = "e"
             firstIteration = True
             while response == "e":
                 if not firstIteration:
-                    response = raw_input("Do you want to submit this change (y/e/n)? ")
+                    response = raw_input("Do you want to submit this change? [y]es/[e]dit/[n]o/[s]kip ")
                 firstIteration = False
                 if response == "e":
                     [handle, fileName] = tempfile.mkstemp()
                     tmpFile = os.fdopen(handle, "w+")
                     tmpFile.write(submitTemplate + separatorLine + diff)
                     tmpFile.close()
-                    editor = os.environ.get("EDITOR", "vi")
+                    defaultEditor = "vi"
+                    if platform.system() == "Windows":
+                        defaultEditor = "notepad"
+                    editor = os.environ.get("EDITOR", defaultEditor);
                     system(editor + " " + fileName)
-                    tmpFile = open(fileName, "r")
+                    tmpFile = open(fileName, "rb")
                     message = tmpFile.read()
                     tmpFile.close()
                     os.remove(fileName)
@@ -307,9 +300,18 @@ class P4Submit(Command):
                    print submitTemplate
                    raw_input("Press return to continue...")
                else:
-                    pipe = os.popen("p4 submit -i", "w")
+                    pipe = os.popen("p4 submit -i", "wb")
                     pipe.write(submitTemplate)
                     pipe.close()
+            elif response == "s":
+                for f in editedFiles:
+                    system("p4 revert \"%s\"" % f);
+                for f in filesToAdd:
+                    system("p4 revert \"%s\"" % f);
+                    system("rm %s" %f)
+                for f in filesToDelete:
+                    system("p4 delete \"%s\"" % f);
+                return
             else:
                 print "Not submitting!"
                 self.interactive = False
@@ -345,16 +347,16 @@ class P4Submit(Command):
             print "Internal error: cannot locate perforce depot path from existing branches"
             sys.exit(128)
 
-        clientPath = p4Where(depotPath)
+        self.clientPath = p4Where(depotPath)
 
-        if len(clientPath) == 0:
+        if len(self.clientPath) == 0:
             print "Error: Cannot locate perforce checkout of %s in client view" % depotPath
             sys.exit(128)
 
-        print "Perforce checkout for depot path %s located at %s" % (depotPath, clientPath)
+        print "Perforce checkout for depot path %s located at %s" % (depotPath, self.clientPath)
         oldWorkingDirectory = os.getcwd()
-        os.chdir(clientPath)
-        response = raw_input("Do you want to sync %s with p4 sync? (y/n) " % clientPath)
+        os.chdir(self.clientPath)
+        response = raw_input("Do you want to sync %s with p4 sync? [y]es/[n]o " % self.clientPath)
         if response == "y" or response == "yes":
             system("p4 sync ...")
 
@@ -397,14 +399,7 @@ class P4Submit(Command):
                 print "No changes found to apply between %s and current HEAD" % self.origin
             else:
                 print "All changes applied!"
-                if not self.applyAsPatch:
-                    print "Deleting temporary p4-sync branch and going back to %s" % self.master
-                    system("git checkout %s" % self.master)
-                    system("git branch -D p4-sync")
-                    print "Cleaning out your perforce checkout by doing p4 edit ... ; p4 revert ..."
-                    system("p4 edit ... >/dev/null")
-                    system("p4 revert ... >/dev/null")
-                response = raw_input("Do you want to sync from Perforce now using git-p4 rebase (y/n)? ")
+                response = raw_input("Do you want to sync from Perforce now using git-p4 rebase? [y]es/[n]o ")
                 if response == "y" or response == "yes":
                     os.chdir(oldWorkingDirectory)
                     rebase = P4Rebase()
@@ -446,7 +441,6 @@ class P4Sync(Command):
         self.detectBranches = False
         self.detectLabels = False
         self.changesFile = ""
-        self.tagLastChange = True
 
     def p4File(self, depotPath):
         return os.popen("p4 print -q \"%s\"" % depotPath, "rb").read()
@@ -456,9 +450,9 @@ class P4Sync(Command):
         fnum = 0
         while commit.has_key("depotFile%s" % fnum):
             path =  commit["depotFile%s" % fnum]
-            if not path.startswith(self.globalPrefix):
+            if not path.startswith(self.depotPath):
     #            if not self.silent:
-    #                print "\nchanged files: ignoring path %s outside of %s in change %s" % (path, self.globalPrefix, change)
+    #                print "\nchanged files: ignoring path %s outside of %s in change %s" % (path, self.depotPath, change)
                 fnum = fnum + 1
                 continue
 
@@ -482,7 +476,7 @@ class P4Sync(Command):
         branches = Set()
 
         for file in files:
-            relativePath = file["path"][len(self.globalPrefix):]
+            relativePath = file["path"][len(self.depotPath):]
             # strip off the filename
             relativePath = relativePath[0:relativePath.rfind("/")]
 
@@ -568,7 +562,7 @@ class P4Sync(Command):
                 sys.exit(1);
             sourceLog = sourceLog[0]
 
-            relPath = source[len(self.globalPrefix):]
+            relPath = source[len(self.depotPath):]
             # strip off the filename
             relPath = relPath[0:relPath.rfind("/")]
 
@@ -728,7 +722,7 @@ class P4Sync(Command):
                 sys.exit(1);
             sourceLog = sourceLog[0]
 
-            relPath = source[len(self.globalPrefix):]
+            relPath = source[len(self.depotPath):]
             # strip off the filename
             relPath = relPath[0:relPath.rfind("/")]
 
@@ -740,13 +734,13 @@ class P4Sync(Command):
 
     def changeIsBranchMerge(self, sourceBranch, destinationBranch, change):
         sourceFiles = {}
-        for file in p4CmdList("files %s...@%s" % (self.globalPrefix + sourceBranch + "/", change)):
+        for file in p4CmdList("files %s...@%s" % (self.depotPath + sourceBranch + "/", change)):
             if file["action"] == "delete":
                 continue
             sourceFiles[file["depotFile"]] = file
 
         destinationFiles = {}
-        for file in p4CmdList("files %s...@%s" % (self.globalPrefix + destinationBranch + "/", change)):
+        for file in p4CmdList("files %s...@%s" % (self.depotPath + destinationBranch + "/", change)):
             destinationFiles[file["depotFile"]] = file
 
         for fileName in sourceFiles.keys():
@@ -813,9 +807,9 @@ class P4Sync(Command):
     def getLabels(self):
         self.labels = {}
 
-        l = p4CmdList("labels %s..." % self.globalPrefix)
+        l = p4CmdList("labels %s..." % self.depotPath)
         if len(l) > 0 and not self.silent:
-            print "Finding files belonging to labels in %s" % self.globalPrefix
+            print "Finding files belonging to labels in %s" % self.depotPath
 
         for output in l:
             label = output["label"]
@@ -830,9 +824,10 @@ class P4Sync(Command):
             self.labels[newestChange] = [output, revisions]
 
     def run(self, args):
-        self.globalPrefix = ""
+        self.depotPath = ""
         self.changeRange = ""
         self.initialParent = ""
+        self.previousDepotPath = ""
 
         if len(self.branch) == 0:
             self.branch = "p4"
@@ -846,58 +841,54 @@ class P4Sync(Command):
             [self.previousDepotPath, p4Change] = extractDepotPathAndChangeFromGitLog(extractLogMessageFromGitCommit(self.branch))
             if len(self.previousDepotPath) > 0 and len(p4Change) > 0:
                 p4Change = int(p4Change) + 1
-                self.globalPrefix = self.previousDepotPath
+                self.depotPath = self.previousDepotPath
                 self.changeRange = "@%s,#head" % p4Change
-                self.initialParent = self.branch
-                self.tagLastChange = False
+                self.initialParent = parseRevision(self.branch)
                 if not self.silent:
                     print "Performing incremental import into %s git branch" % self.branch
 
-        self.branch = "refs/heads/" + self.branch
-
-        if len(self.globalPrefix) == 0:
-            self.globalPrefix = self.previousDepotPath = os.popen("git repo-config --get p4.depotpath").read()
+        if not self.branch.startswith("refs/"):
+            self.branch = "refs/heads/" + self.branch
 
-        if len(self.globalPrefix) != 0:
-            self.globalPrefix = self.globalPrefix[:-1]
+        if len(self.depotPath) != 0:
+            self.depotPath = self.depotPath[:-1]
 
-        if len(args) == 0 and len(self.globalPrefix) != 0:
+        if len(args) == 0 and len(self.depotPath) != 0:
             if not self.silent:
-                print "Depot path: %s" % self.globalPrefix
+                print "Depot path: %s" % self.depotPath
         elif len(args) != 1:
             return False
         else:
-            if len(self.globalPrefix) != 0 and self.globalPrefix != args[0]:
-                print "previous import used depot path %s and now %s was specified. this doesn't work!" % (self.globalPrefix, args[0])
+            if len(self.depotPath) != 0 and self.depotPath != args[0]:
+                print "previous import used depot path %s and now %s was specified. this doesn't work!" % (self.depotPath, args[0])
                 sys.exit(1)
-            self.globalPrefix = args[0]
+            self.depotPath = args[0]
 
         self.revision = ""
         self.users = {}
         self.lastChange = 0
-        self.initialTag = ""
 
-        if self.globalPrefix.find("@") != -1:
-            atIdx = self.globalPrefix.index("@")
-            self.changeRange = self.globalPrefix[atIdx:]
+        if self.depotPath.find("@") != -1:
+            atIdx = self.depotPath.index("@")
+            self.changeRange = self.depotPath[atIdx:]
             if self.changeRange == "@all":
                 self.changeRange = ""
             elif self.changeRange.find(",") == -1:
                 self.revision = self.changeRange
                 self.changeRange = ""
-            self.globalPrefix = self.globalPrefix[0:atIdx]
-        elif self.globalPrefix.find("#") != -1:
-            hashIdx = self.globalPrefix.index("#")
-            self.revision = self.globalPrefix[hashIdx:]
-            self.globalPrefix = self.globalPrefix[0:hashIdx]
+            self.depotPath = self.depotPath[0:atIdx]
+        elif self.depotPath.find("#") != -1:
+            hashIdx = self.depotPath.index("#")
+            self.revision = self.depotPath[hashIdx:]
+            self.depotPath = self.depotPath[0:hashIdx]
         elif len(self.previousDepotPath) == 0:
             self.revision = "#head"
 
-        if self.globalPrefix.endswith("..."):
-            self.globalPrefix = self.globalPrefix[:-3]
+        if self.depotPath.endswith("..."):
+            self.depotPath = self.depotPath[:-3]
 
-        if not self.globalPrefix.endswith("/"):
-            self.globalPrefix += "/"
+        if not self.depotPath.endswith("/"):
+            self.depotPath += "/"
 
         self.getUserMap()
         self.labels = {}
@@ -917,25 +908,27 @@ class P4Sync(Command):
                     endPos = caretIdx
                 self.rev = int(output[tagIdx + 9 : endPos]) + 1
                 self.changeRange = "@%s,#head" % self.rev
-                self.initialParent = os.popen("git rev-parse %s" % self.branch).read()[:-1]
-                self.initialTag = "p4/%s" % (int(self.rev) - 1)
+                self.initialParent = parseRevision(self.branch)
             except:
                 pass
 
         self.tz = "%+03d%02d" % (- time.timezone / 3600, ((- time.timezone % 3600) / 60))
 
-        self.gitOutput, self.gitStream, self.gitError = popen2.popen3("git fast-import")
+        importProcess = subprocess.Popen(["git", "fast-import"], stdin=subprocess.PIPE, stdout=subprocess.PIPE, stderr=subprocess.PIPE);
+        self.gitOutput = importProcess.stdout
+        self.gitStream = importProcess.stdin
+        self.gitError = importProcess.stderr
 
         if len(self.revision) > 0:
-            print "Doing initial import of %s from revision %s" % (self.globalPrefix, self.revision)
+            print "Doing initial import of %s from revision %s" % (self.depotPath, self.revision)
 
             details = { "user" : "git perforce import user", "time" : int(time.time()) }
-            details["desc"] = "Initial import of %s from the state at revision %s" % (self.globalPrefix, self.revision)
+            details["desc"] = "Initial import of %s from the state at revision %s" % (self.depotPath, self.revision)
             details["change"] = self.revision
             newestRevision = 0
 
             fileCnt = 0
-            for info in p4CmdList("files %s...%s" % (self.globalPrefix, self.revision)):
+            for info in p4CmdList("files %s...%s" % (self.depotPath, self.revision)):
                 change = int(info["change"])
                 if change > newestRevision:
                     newestRevision = change
@@ -953,7 +946,7 @@ class P4Sync(Command):
             details["change"] = newestRevision
 
             try:
-                self.commit(details, self.extractFilesFromCommit(details), self.branch, self.globalPrefix)
+                self.commit(details, self.extractFilesFromCommit(details), self.branch, self.depotPath)
             except IOError:
                 print "IO error with git fast-import. Is your git version recent enough?"
                 print self.gitError.read()
@@ -972,7 +965,7 @@ class P4Sync(Command):
 
                 changes.sort()
             else:
-                output = os.popen("p4 changes %s...%s" % (self.globalPrefix, self.changeRange)).readlines()
+                output = mypopen("p4 changes %s...%s" % (self.depotPath, self.changeRange)).readlines()
 
                 for line in output:
                     changeNum = line.split(" ")[1]
@@ -999,7 +992,7 @@ class P4Sync(Command):
                     if self.detectBranches:
                         for branch in self.branchesForCommit(files):
                             self.knownBranches.add(branch)
-                            branchPrefix = self.globalPrefix + branch + "/"
+                            branchPrefix = self.depotPath + branch + "/"
 
                             filesForCommit = self.extractFilesInCommitToBranch(files, branchPrefix)
 
@@ -1028,7 +1021,7 @@ class P4Sync(Command):
                                 merged = "refs/heads/" + merged
                             self.commit(description, files, branch, branchPrefix, parent, merged)
                     else:
-                        self.commit(description, files, self.branch, self.globalPrefix, self.initialParent)
+                        self.commit(description, files, self.branch, self.depotPath, self.initialParent)
                         self.initialParent = ""
                 except IOError:
                     print self.gitError.read()
@@ -1037,18 +1030,11 @@ class P4Sync(Command):
         if not self.silent:
             print ""
 
-        if self.tagLastChange:
-            self.gitStream.write("reset refs/tags/p4/%s\n" % self.lastChange)
-            self.gitStream.write("from %s\n\n" % self.branch);
-
 
         self.gitStream.close()
         self.gitOutput.close()
         self.gitError.close()
-
-        os.popen("git repo-config p4.depotpath %s" % self.globalPrefix).read()
-        if len(self.initialTag) > 0:
-            os.popen("git tag -d %s" % self.initialTag).read()
+        importProcess.wait()
 
         return True
 
@@ -1062,7 +1048,7 @@ class P4Rebase(Command):
         sync = P4Sync()
         sync.run([])
         print "Rebasing the current branch"
-        oldHead = os.popen("git rev-parse HEAD").read()[:-1]
+        oldHead = mypopen("git rev-parse HEAD").read()[:-1]
         system("git rebase p4")
         system("git diff-tree --stat --summary -M %s HEAD" % oldHead)
         return True
@@ -1073,7 +1059,6 @@ class P4Clone(P4Sync):
         self.description = "Creates a new git repository and imports from Perforce into it"
         self.usage = "usage: %prog [options] //depot/path[@revRange] [directory]"
         self.needsGit = False
-        self.tagLastChange = False
 
     def run(self, args):
         if len(args) < 1:
@@ -1113,7 +1098,6 @@ class P4Clone(P4Sync):
         system("git init")
         if not P4Sync.run(self, [depotPath]):
             return False
-        os.wait()
         if self.branch != "master":
             system("git branch master p4")
             system("git checkout -f")
@@ -1139,7 +1123,6 @@ def printUsage(commands):
 
 commands = {
     "debug" : P4Debug(),
-    "clean-tags" : P4CleanTags(),
     "submit" : P4Submit(),
     "sync" : P4Sync(),
     "rebase" : P4Rebase(),
@@ -1180,9 +1163,11 @@ if cmd.needsGit:
     if len(gitdir) == 0:
         gitdir = ".git"
         if not isValidGitDir(gitdir):
-            cdup = os.popen("git rev-parse --show-cdup").read()[:-1]
-            if isValidGitDir(cdup + "/" + gitdir):
-                os.chdir(cdup)
+            gitdir = mypopen("git rev-parse --git-dir").read()[:-1]
+            if os.path.exists(gitdir):
+                cdup = mypopen("git rev-parse --show-cdup").read()[:-1];
+                if len(cdup) > 0:
+                    os.chdir(cdup);
 
     if not isValidGitDir(gitdir):
         if isValidGitDir(gitdir + "/.git"):