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authorStefan Beller <sbeller@google.com>2016-08-03 20:44:04 (GMT)
committerJunio C Hamano <gitster@pobox.com>2016-08-03 23:13:22 (GMT)
commit4d7bc52b178bffe9e484c4dcd92d5353e2ce716f (patch)
treeba288f6c41fbf521524e7ee3181e2bbec9cde761 /t/t7406-submodule-update.sh
parent92bbe7ccf1fedac825f2c6ab4c8de91dc5370fd2 (diff)
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submodule update: allow '.' for branch value
Gerrit has a "superproject subscription" feature[1], that triggers a commit in a superproject that is subscribed to its submodules. Conceptually this Gerrit feature can be done on the client side with Git via (except for raciness, error handling etc): while [ true ]; do git -C <superproject> submodule update --remote --force git -C <superproject> commit -a -m "Update submodules" git -C <superproject> push done for each branch in the superproject. To ease the configuration in Gerrit a special value of "." has been introduced for the submodule.<name>.branch to mean the same branch as the superproject[2], such that you can create a new branch on both superproject and the submodule and this feature continues to work on that new branch. Now we find projects in the wild with such a .gitmodules file. The .gitmodules used in these Gerrit projects do not conform to Gits understanding of how .gitmodules should look like. This teaches Git to deal gracefully with this syntax as well. The redefinition of "." does no harm to existing projects unaware of this change, as "." is an invalid branch name in Git, so we do not expect such projects to exist. Signed-off-by: Stefan Beller <sbeller@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Diffstat (limited to 't/t7406-submodule-update.sh')
-rwxr-xr-xt/t7406-submodule-update.sh35
1 files changed, 34 insertions, 1 deletions
diff --git a/t/t7406-submodule-update.sh b/t/t7406-submodule-update.sh
index 1bb1f43..d7983cf 100755
--- a/t/t7406-submodule-update.sh
+++ b/t/t7406-submodule-update.sh
@@ -209,9 +209,42 @@ test_expect_success 'submodule update --remote should fetch upstream changes' '
)
'
+test_expect_success 'submodule update --remote should fetch upstream changes with .' '
+ (
+ cd super &&
+ git config -f .gitmodules submodule."submodule".branch "." &&
+ git add .gitmodules &&
+ git commit -m "submodules: update from the respective superproject branch"
+ ) &&
+ (
+ cd submodule &&
+ echo line4a >> file &&
+ git add file &&
+ test_tick &&
+ git commit -m "upstream line4a" &&
+ git checkout -b test-branch &&
+ test_commit on-test-branch
+ ) &&
+ (
+ cd super &&
+ git submodule update --remote --force submodule &&
+ git -C submodule log -1 --oneline >actual
+ git -C ../submodule log -1 --oneline master >expect
+ test_cmp expect actual &&
+ git checkout -b test-branch &&
+ git submodule update --remote --force submodule &&
+ git -C submodule log -1 --oneline >actual
+ git -C ../submodule log -1 --oneline test-branch >expect
+ test_cmp expect actual &&
+ git checkout master &&
+ git branch -d test-branch &&
+ git reset --hard HEAD^
+ )
+'
+
test_expect_success 'local config should override .gitmodules branch' '
(cd submodule &&
- git checkout -b test-branch &&
+ git checkout test-branch &&
echo line5 >> file &&
git add file &&
test_tick &&