mirrors/git
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

merge-tree: support multiple batched merges with --stdin

Browse Source 
Add an option, --stdin, to merge-tree which will accept lines of input
with two branches to merge per line, and which will perform all the
merges and give output for each in turn.  This option implies -z, and
modifies the output to also include a merge status since the exit code
of the program can no longer convey that information now that multiple
merges are involved.

This could be useful, for example, by Git hosting providers.  When one
branch is updated, one may want to check whether all code reviews
targetting that branch can still cleanly merge.  Avoiding the overhead
of starting up a separate process for each of those code reviews might
provide significant savings in a repository with many code reviews.

Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Elijah Newren
2022-10-23 01:28:05 +00:00
committed by Junio C Hamano
parent a9f5bb83e0
commit ec1edbcb56
3 changed files with 109 additions and 4 deletions
Download Patch File Download Diff File Expand all files Collapse all files

41
t/t4301-merge-tree-write-tree.sh
View File

@ -819,4 +819,45 @@ test_expect_success SANITY 'merge-ort fails gracefully in a read-only repository
test_must_fail git -C read-only merge-tree side1 side2
'
test_expect_success '--stdin with both a successful and a conflicted merge' '
printf "side1 side3\nside1 side2" | git merge-tree --stdin >actual &&
git checkout side1^0 &&
git merge side3 &&
printf "1\0" >expect &&
git rev-parse HEAD^{tree} | lf_to_nul >>expect &&
printf "\0" >>expect &&
git checkout side1^0 &&
test_must_fail git merge side2 &&
sed s/HEAD/side1/ greeting >tmp &&
mv tmp greeting &&
git add -u &&
git mv whatever~HEAD whatever~side1 &&
printf "0\0" >>expect &&
git write-tree | lf_to_nul >>expect &&
cat <<-EOF | q_to_tab | lf_to_nul >>expect &&
100644 $(git rev-parse side1~1:greeting) 1Qgreeting
100644 $(git rev-parse side1:greeting) 2Qgreeting
100644 $(git rev-parse side2:greeting) 3Qgreeting
100644 $(git rev-parse side1~1:whatever) 1Qwhatever~side1
100644 $(git rev-parse side1:whatever) 2Qwhatever~side1
EOF
q_to_nul <<-EOF >>expect &&
Q1QgreetingQAuto-mergingQAuto-merging greeting
Q1QgreetingQCONFLICT (contents)QCONFLICT (content): Merge conflict in greeting
Q1QnumbersQAuto-mergingQAuto-merging numbers
Q2Qwhatever~side1QwhateverQCONFLICT (file/directory)QCONFLICT (file/directory): directory in the way of whatever from side1; moving it to whatever~side1 instead.
Q1Qwhatever~side1QCONFLICT (modify/delete)QCONFLICT (modify/delete): whatever~side1 deleted in side2 and modified in side1. Version side1 of whatever~side1 left in tree.
EOF
printf "\0\0" >>expect &&
test_cmp expect actual
'
test_done