git-p4: Cleanup, used common function for listing imported p4 branches

[git.git] / contrib / fast-import / git-p4

diff --git a/contrib/fast-import/git-p4 b/contrib/fast-import/git-p4
index d4a2f14311c83898dffac29f541a2be093085fd3..e3404ca853c8b54f1a0c64be7038d282746652a7 100755 (executable)
--- a/contrib/fast-import/git-p4
+++ b/contrib/fast-import/git-p4
@@ -205,26 +205,31 @@ def p4BranchesInGit(branchesAreInRemotes = True):
     return branches
 
 def findUpstreamBranchPoint(head = "HEAD"):
+    branches = p4BranchesInGit()
+    # map from depot-path to branch name
+    branchByDepotPath = {}
+    for branch in branches.keys():
+        tip = branches[branch]
+        log = extractLogMessageFromGitCommit(tip)
+        settings = extractSettingsGitLog(log)
+        if settings.has_key("depot-paths"):
+            paths = ",".join(settings["depot-paths"])
+            branchByDepotPath[paths] = "remotes/p4/" + branch
+
     settings = None
-    branchPoint = ""
     parent = 0
     while parent < 65535:
         commit = head + "~%s" % parent
         log = extractLogMessageFromGitCommit(commit)
         settings = extractSettingsGitLog(log)
-        if not settings.has_key("depot-paths"):
-            parent = parent + 1
-            continue
-
-        names = read_pipe_lines("git name-rev \"--refs=refs/remotes/p4/*\" \"%s\"" % commit)
-        if len(names) <= 0:
-            continue
+        if settings.has_key("depot-paths"):
+            paths = ",".join(settings["depot-paths"])
+            if branchByDepotPath.has_key(paths):
+                return [branchByDepotPath[paths], settings]
 
-        # strip away the beginning of 'HEAD~42 refs/remotes/p4/foo'
-        branchPoint = names[0].strip()[len(commit) + 1:]
-        break
+        parent = parent + 1
 
-    return [branchPoint, settings]
+    return ["", settings]
 
 class Command:
     def __init__(self):
@@ -1001,27 +1006,11 @@ class P4Sync(Command):
             self.knownBranches[branch] = branch
 
     def listExistingP4GitBranches(self):
-        self.p4BranchesInGit = []
-
-        cmdline = "git rev-parse --symbolic "
-        if self.importIntoRemotes:
-            cmdline += " --remotes"
-        else:
-            cmdline += " --branches"
-
-        for line in read_pipe_lines(cmdline):
-            line = line.strip()
-
-            ## only import to p4/
-            if not line.startswith('p4/') or line == "p4/HEAD":
-                continue
-            branch = line
-
-            # strip off p4
-            branch = re.sub ("^p4/", "", line)
-
-            self.p4BranchesInGit.append(branch)
-            self.initialParents[self.refPrefix + branch] = parseRevision(line)
+        # branches holds mapping from name to commit
+        branches = p4BranchesInGit(self.importIntoRemotes)
+        self.p4BranchesInGit = branches.keys()
+        for branch in branches.keys():
+            self.initialParents[self.refPrefix + branch] = branches[branch]
 
     def createOrUpdateBranchesFromOrigin(self):
         if not self.silent: