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git-p4 support for perforce renames.

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The current git-p4 implementation does support file renames. However, because
it does not use the "p4 integrate" command, the history for the renamed file is
not linked to the new file.

This changeset adds support for perforce renames with the integrate command.
Currently this feature is only enabled when calling git-p4 submit with the -M
option. This is intended to look and behave similar to the "detect renames"
feature of other git commands.

The following sequence is used for renamed files:

    p4 integrate -Dt x x'
    p4 edit x'
    rm x'
    git apply
    p4 delete x

By default, perforce will not allow an integration with a target file that has
been deleted. That is, if x' in the example above is the name of a previously
deleted file then perforce will fail the integrate. The -Dt option tells
perforce to allow the target of integrate to be a previously deleted file.

Signed-off-by: Chris Pettitt <cpettitt@gmail.com>
Signed-off-by: Simon Hausmann <simon@lst.de>
This commit is contained in:
Chris Pettitt 2007-10-15 22:15:06 -07:00 committed by Simon Hausmann
parent 209471493a
commit d9a5f25b67
1 changed files with 11 additions and 1 deletions
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12
contrib/fast-import/git-p4
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@ -399,6 +399,7 @@ class P4Submit(Command):
optparse.make_option("--dry-run", action="store_true"),
optparse.make_option("--direct", dest="directSubmit", action="store_true"),
optparse.make_option("--trust-me-like-a-fool", dest="trustMeLikeAFool", action="store_true"),
optparse.make_option("-M", dest="detectRename", action="store_true"),
]
self.description = "Submit changes from git to the perforce depot."
self.usage += " [name of git branch to submit into perforce depot]"
@ -411,6 +412,7 @@ class P4Submit(Command):
self.origin = ""
self.directSubmit = False
self.trustMeLikeAFool = False
self.detectRename = False
self.verbose = False
self.isWindows = (platform.system() == "Windows")
@ -491,7 +493,8 @@ class P4Submit(Command):
diff = self.diffStatus
else:
print "Applying %s" % (read_pipe("git log --max-count=1 --pretty=oneline %s" % id))
diff = read_pipe_lines("git diff-tree -r --name-status \"%s^\" \"%s\"" % (id, id))
diffOpts = ("", "-M")[self.detectRename]
diff = read_pipe_lines("git diff-tree -r --name-status %s \"%s^\" \"%s\"" % (diffOpts, id, id))
filesToAdd = set()
filesToDelete = set()
editedFiles = set()
@ -509,6 +512,13 @@ class P4Submit(Command):
filesToDelete.add(path)
if path in filesToAdd:
filesToAdd.remove(path)
elif modifier == "R":
src, dest = line.strip().split("\t")[1:3]
system("p4 integrate -Dt \"%s\" \"%s\"" % (src, dest))
system("p4 edit \"%s\"" % (dest))
os.unlink(dest)
editedFiles.add(dest)
filesToDelete.add(src)
else:
die("unknown modifier %s for %s" % (modifier, path))