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author | Junio C Hamano <gitster@pobox.com> | 2022-05-27 09:01:39 +0300 |
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committer | Junio C Hamano <gitster@pobox.com> | 2022-05-27 09:05:03 +0300 |
commit | 43966ab3156a082067bf9930351e96e9488da735 (patch) | |
tree | 540a2bf2af1738c6084a68b58ad4018bbbab2386 /t/t3501-revert-cherry-pick.sh | |
parent | 6cd33dceed60949e2dbc32e3f0f5e67c4c882e1e (diff) |
revert: optionally refer to commit in the "reference" format
A typical "git revert" commit uses the full title of the original
commit in its title, and starts its body of the message with:
This reverts commit 8fa7f667cf61386257c00d6e954855cc3215ae91.
This does not encourage the best practice of describing not just
"what" (i.e. "Revert X" on the title says what we did) but "why"
(i.e. and it does not say why X was undesirable).
We can instead phrase this first line of the body to be more like
This reverts commit 8fa7f667 (do this and that, 2022-04-25)
so that the title does not have to be
Revert "do this and that"
We can instead use the title to describe "why" we are reverting the
original commit.
Introduce the "--reference" option to "git revert", and also the
revert.reference configuration variable, which defaults to false, to
tweak the title and the first line of the draft commit message for
when creating a "revert" commit.
When this option is in use, the first line of the pre-filled editor
buffer becomes a comment line that tells the user to say _why_. If
the user exits the editor without touching this line by mistake,
what we prepare to become the first line of the body, i.e. "This
reverts commit 8fa7f667 (do this and that, 2022-04-25)", ends up to
be the title of the resulting commit. This behaviour is designed to
help such a user to identify such a revert in "git log --oneline"
easily so that it can be further reworded with "git rebase -i" later.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Diffstat (limited to 't/t3501-revert-cherry-pick.sh')
-rwxr-xr-x | t/t3501-revert-cherry-pick.sh | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/t/t3501-revert-cherry-pick.sh b/t/t3501-revert-cherry-pick.sh index 8617efaaf1..a386ae9e88 100755 --- a/t/t3501-revert-cherry-pick.sh +++ b/t/t3501-revert-cherry-pick.sh @@ -159,6 +159,7 @@ test_expect_success 'cherry-pick works with dirty renamed file' ' ' test_expect_success 'advice from failed revert' ' + test_when_finished "git reset --hard" && test_commit --no-tag "add dream" dream dream && dream_oid=$(git rev-parse --short HEAD) && cat <<-EOF >expected && @@ -174,4 +175,34 @@ test_expect_success 'advice from failed revert' ' test_must_fail git revert HEAD^ 2>actual && test_cmp expected actual ' + +test_expect_success 'identification of reverted commit (default)' ' + test_commit to-ident && + test_when_finished "git reset --hard to-ident" && + git checkout --detach to-ident && + git revert --no-edit HEAD && + git cat-file commit HEAD >actual.raw && + grep "^This reverts " actual.raw >actual && + echo "This reverts commit $(git rev-parse HEAD^)." >expect && + test_cmp expect actual +' + +test_expect_success 'identification of reverted commit (--reference)' ' + git checkout --detach to-ident && + git revert --reference --no-edit HEAD && + git cat-file commit HEAD >actual.raw && + grep "^This reverts " actual.raw >actual && + echo "This reverts commit $(git show -s --pretty=reference HEAD^)." >expect && + test_cmp expect actual +' + +test_expect_success 'identification of reverted commit (revert.reference)' ' + git checkout --detach to-ident && + git -c revert.reference=true revert --no-edit HEAD && + git cat-file commit HEAD >actual.raw && + grep "^This reverts " actual.raw >actual && + echo "This reverts commit $(git show -s --pretty=reference HEAD^)." >expect && + test_cmp expect actual +' + test_done |