[PATCH] git-p4: Work around race between p4_edit and p4_change

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On 04/03/08 14:45:38, Kevin Green wrote:
> On 04/03/08 14:32:32, Simon Hausmann wrote:
> > 
> > Last but not least we could of course also generate the entire Files: section 
> > ourselves, using 'p4 change -o' just to get the rest of the template right.
> > 
> > I almost prefer the last approach, since we know the base depot path and the 
> > relative paths of all edited/added files.
> > 
> > What do you think?
> > 
> 
> Thank you...  That's the right approach.  Stop as soon as we get to the Files:
> section and then just add in the depot + filepath string for each change...
> 

And here's the patch that does what we just described...


--Kevin


>From dff9c9a00e3aaf41023ff11ecc75902a87b4c16b Mon Sep 17 00:00:00 2001
From: Kevin Green <Kevin.Green@xxxxxxxxxxxxxxxxx>
Date: Thu, 3 Apr 2008 15:47:07 -0400
Subject: [PATCH] git-p4: Work around race between p4_edit and p4_change

There exists a race in p4, such that p4_edit immediately followed by a
p4_change will not show the new edits in the changelist template.

Instead of removing files not in our concerned depot from the Files: section
we instead use p4_change as a template only up to the Files: section and then
file in the files explicitly ourselves, since we know the full list of files
and they current state, e.g. add, delete, edit.

Signed-off-by: Kevin Green <Kevin.Green@xxxxxxxxxxxxxxxxx>
---
 contrib/fast-import/git-p4 |   30 ++++++++++++++----------------
 1 files changed, 14 insertions(+), 16 deletions(-)

diff --git a/contrib/fast-import/git-p4 b/contrib/fast-import/git-p4
index d8de9f6..7760764 100755
--- a/contrib/fast-import/git-p4
+++ b/contrib/fast-import/git-p4
@@ -511,29 +511,20 @@ class P4Submit(Command):
     def prepareSubmitTemplate(self):
         # remove lines in the Files section that show changes to files outside the depot path we're committing into
         template = ""
-        inFilesSection = False
         for line in read_pipe_lines("p4 change -o"):
             if line.endswith("\r\n"):
                 line = line[:-2] + "\n"
-            if inFilesSection:
-                if line.startswith("\t"):
-                    # path starts and ends with a tab
-                    path = line[1:]
-                    lastTab = path.rfind("\t")
-                    if lastTab != -1:
-                        path = path[:lastTab]
-                        if not path.startswith(self.depotPath):
-                            continue
-                else:
-                    inFilesSection = False
-            else:
-                if line.startswith("Files:"):
-                    inFilesSection = True
+            if line.startswith("Files:"):
+                template += line
+                break
 
             template += line
 
         return template
 
+    def addToFilesSection(self, path, type):
+        return "\t" + self.depotPath + "/" + path + "\t# " + type + "\n"
+
     def applyCommit(self, id):
         print "Applying %s" % (read_pipe("git log --max-count=1 --pretty=oneline %s" % id))
         diffOpts = ("", "-M")[self.detectRename]
@@ -609,11 +600,19 @@ class P4Submit(Command):
 
         system(applyPatchCmd)
 
+        template = self.prepareSubmitTemplate()
+
         for f in filesToAdd:
             system("p4 add \"%s\"" % f)
+            template += self.addToFilesSection(f,"add")
+
         for f in filesToDelete:
             system("p4 revert \"%s\"" % f)
             system("p4 delete \"%s\"" % f)
+            template += self.addToFilesSection(f,"delete")
+
+        for f in editedFiles:
+            template += self.addToFilesSection(f,"edit")
 
         # Set/clear executable bits
         for f in filesToChangeExecBit.keys():
@@ -623,7 +622,6 @@ class P4Submit(Command):
         logMessage = extractLogMessageFromGitCommit(id)
         logMessage = logMessage.strip()
 
-        template = self.prepareSubmitTemplate()
 
         if self.interactive:
             submitTemplate = self.prepareLogMessage(template, logMessage)
-- 
1.5.4.2

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