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git p4: fix sync --branch when no master branch

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It is legal to sync a branch with a different name than
refs/remotes/p4/master, and to do so even when master does
not exist.

Signed-off-by: Pete Wyckoff <pw@padd.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Pete Wyckoff 2013-01-14 19:47:06 -05:00 committed by Junio C Hamano
parent 5a8e84cde3
commit 8c9e8b6e75
3 changed files with 20 additions and 7 deletions
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5
Documentation/git-p4.txt
View File

@ -112,6 +112,11 @@ will be fetched and consulted first during a 'git p4 sync'. Since
importing directly from p4 is considerably slower than pulling changes
from a git remote, this can be useful in a multi-developer environment.
If there are multiple branches, doing 'git p4 sync' will automatically
use the "BRANCH DETECTION" algorithm to try to partition new changes
into the right branch. This can be overridden with the '--branch'
option to specify just a single branch to update.
Rebase
~~~~~~

14
git-p4.py
View File

@ -2804,14 +2804,22 @@ class P4Sync(Command, P4UserMap):
# branches holds mapping from branch name to sha1
branches = p4BranchesInGit(self.importIntoRemotes)
self.p4BranchesInGit = branches.keys()
for branch in branches.keys():
self.initialParents[self.refPrefix + branch] = branches[branch]
# restrict to just this one, disabling detect-branches
if branch_arg_given:
short = self.branch.split("/")[-1]
if short in branches:
self.p4BranchesInGit = [ short ]
else:
self.p4BranchesInGit = branches.keys()
if len(self.p4BranchesInGit) > 1:
if not self.silent:
print "Importing from/into multiple branches"
self.detectBranches = True
for branch in branches.keys():
self.initialParents[self.refPrefix + branch] = \
branches[branch]
if self.verbose:
print "branches: %s" % self.p4BranchesInGit

8
t/t9806-git-p4-options.sh
View File

@ -88,14 +88,14 @@ test_expect_success 'sync when two branches but no master should noop' '
)
'
test_expect_failure 'sync --branch updates specified branch' '
test_expect_success 'sync --branch updates specific branch, no detection' '
test_when_finished cleanup_git &&
(
cd "$git" &&
git init &&
git p4 sync --branch=refs/remotes/p4/b1 //depot@2 &&
git p4 sync --branch=refs/remotes/p4/b2 //depot@2 &&
git p4 sync --branch=refs/remotes/p4/b2 &&
git p4 sync --branch=b1 //depot@2 &&
git p4 sync --branch=b2 //depot@2 &&
git p4 sync --branch=b2 &&
git show -s --format=%s refs/remotes/p4/b1 >show &&
grep "Initial import" show &&
git show -s --format=%s refs/remotes/p4/b2 >show &&