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rebase: teach --autosquash to match on sha1 in addition to message

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Support lines of the form "fixup! 7a235b" that specify an exact commit
in addition to the normal "squash! Old commit message" form.

Signed-off-by: Kevin Ballard <kevin@sb.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Kevin Ballard 2010-11-04 15:36:32 -07:00 committed by Junio C Hamano
parent d3d7a421b1
commit 68d5d03bc4
2 changed files with 64 additions and 7 deletions
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40
git-rebase--interactive.sh
View File

@ -675,9 +675,27 @@ get_saved_options () {
# comes immediately after the former, and change "pick" to
# "fixup"/"squash".
rearrange_squash () {
sed -n -e 's/^pick \([0-9a-f]*\) \(squash\)! /\1 \2 /p' \
-e 's/^pick \([0-9a-f]*\) \(fixup\)! /\1 \2 /p' \
"$1" >"$1.sq"
# extract fixup!/squash! lines and resolve any referenced sha1's
while read -r pick sha1 message
do
case "$message" in
"squash! "*|"fixup! "*)
action="${message%%!*}"
rest="${message#*! }"
echo "$sha1 $action $rest"
# if it's a single word, try to resolve to a full sha1 and
# emit a second copy. This allows us to match on both message
# and on sha1 prefix
if test "${rest#* }" = "$rest"; then
fullsha="$(git rev-parse -q --verify "$rest" 2>/dev/null)"
if test -n "$fullsha"; then
# prefix the action to uniquely identify this line as
# intended for full sha1 match
echo "$sha1 +$action $fullsha"
fi
fi
esac
done >"$1.sq" <"$1"
test -s "$1.sq" || return
used=
@ -693,12 +711,20 @@ rearrange_squash () {
case " $used" in
*" $squash "*) continue ;;
esac
case "$message" in
"$msg"*)
emit=0
case "$action" in
+*)
action="${action#+}"
# full sha1 prefix test
case "$msg" in "$sha1"*) emit=1;; esac ;;
*)
# message prefix test
case "$message" in "$msg"*) emit=1;; esac ;;
esac
if test $emit = 1; then
printf '%s\n' "$action $squash $action! $msg"
used="$used$squash "
;;
esac
fi
done <"$1.sq"
done >"$1.rearranged" <"$1"
cat "$1.rearranged" >"$1"

31
t/t3415-rebase-autosquash.sh
View File

@ -136,5 +136,36 @@ test_expect_success 'auto squash that matches a commit after the squash' '
test 1 = $(git cat-file commit HEAD | grep third | wc -l) &&
test 1 = $(git cat-file commit HEAD^ | grep third | wc -l)
'
test_expect_success 'auto squash that matches a sha1' '
git reset --hard base &&
echo 1 >file1 &&
git add -u &&
test_tick &&
git commit -m "squash! $(git rev-parse --short HEAD^)" &&
git tag final-shasquash &&
test_tick &&
git rebase --autosquash -i HEAD^^^ &&
git log --oneline >actual &&
test 3 = $(wc -l <actual) &&
git diff --exit-code final-shasquash &&
test 1 = "$(git cat-file blob HEAD^:file1)" &&
test 1 = $(git cat-file commit HEAD^ | grep squash | wc -l)
'
test_expect_success 'auto squash that matches longer sha1' '
git reset --hard base &&
echo 1 >file1 &&
git add -u &&
test_tick &&
git commit -m "squash! $(git rev-parse --short=11 HEAD^)" &&
git tag final-longshasquash &&
test_tick &&
git rebase --autosquash -i HEAD^^^ &&
git log --oneline >actual &&
test 3 = $(wc -l <actual) &&
git diff --exit-code final-longshasquash &&
test 1 = "$(git cat-file blob HEAD^:file1)" &&
test 1 = $(git cat-file commit HEAD^ | grep squash | wc -l)
'
test_done