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git/t/t7501-commit.sh
Jeff King 27014cbc04 commit: do not ignore an empty message given by -m '' 
When f9568530 (builtin-commit: resurrect behavior for multiple -m
options, 2007-11-11) converted a "char *message" to "struct strbuf
message" to hold the messages given with the "-m" option, it
incorrectly changed the checks "did we get a message with the -m
option?" to "is message.len 0?".  Later, we noticed one breakage
from this change and corrected it with 25206778 (commit: don't start
editor if empty message is given with -m, 2013-05-25).

However, "we got a message with -m, even though an empty one, so we
shouldn't be launching an editor" was not the only breakage.

 * "git commit --amend -m '' --allow-empty", even though it looks
   strange, is a valid request to amend the commit to have no
   message at all.  Due to the misdetection of the presence of -m on
   the command line, we ended up keeping the log messsage from the
   original commit.

 * "git commit -m "$msg" -F file" should be rejected whether $msg is
   an empty string or not, but due to the same bug, was not rejected
   when $msg is empty.

 * "git -c template=file -m "$msg"" should ignore the template even
   when $msg is empty, but it didn't and instead used the contents
   from the template file.

Correct these by checking have_option_m, which the earlier 25206778
introduced to fix the same bug.

Reported-by: Adam Dinwoodie <adam@dinwoodie.org>
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-04-07 13:25:12 -07:00

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#!/bin/sh
#
# Copyright (c) 2007 Kristian Høgsberg <krh@redhat.com>
#
# FIXME: Test the various index usages, -i and -o, test reflog,
# signoff
test_description='git commit'
. ./test-lib.sh
. "$TEST_DIRECTORY/diff-lib.sh"
author='The Real Author <someguy@his.email.org>'
test_tick
test_expect_success 'initial status' '
echo bongo bongo >file &&
git add file &&
git status >actual &&
test_i18ngrep "Initial commit" actual
'
test_expect_success 'fail initial amend' '
test_must_fail git commit --amend
'
test_expect_success 'setup: initial commit' '
git commit -m initial
'
test_expect_success '-m and -F do not mix' '
git checkout HEAD file && echo >>file && git add file &&
test_must_fail git commit -m foo -m bar -F file
'
test_expect_success '-m and -C do not mix' '
git checkout HEAD file && echo >>file && git add file &&
test_must_fail git commit -C HEAD -m illegal
'
test_expect_success 'paths and -a do not mix' '
echo King of the bongo >file &&
test_must_fail git commit -m foo -a file
'
test_expect_success PERL 'can use paths with --interactive' '
echo bong-o-bong >file &&
# 2: update, 1:st path, that is all, 7: quit
( echo 2; echo 1; echo; echo 7 ) |
git commit -m foo --interactive file &&
git reset --hard HEAD^
'
test_expect_success 'using invalid commit with -C' '
test_must_fail git commit --allow-empty -C bogus
'
test_expect_success 'nothing to commit' '
git reset --hard &&
test_must_fail git commit -m initial
'
test_expect_success '--dry-run fails with nothing to commit' '
test_must_fail git commit -m initial --dry-run
'
test_expect_success '--short fails with nothing to commit' '
test_must_fail git commit -m initial --short
'
test_expect_success '--porcelain fails with nothing to commit' '
test_must_fail git commit -m initial --porcelain
'
test_expect_success '--long fails with nothing to commit' '
test_must_fail git commit -m initial --long
'
test_expect_success 'setup: non-initial commit' '
echo bongo bongo bongo >file &&
git commit -m next -a
'
test_expect_success '--dry-run with stuff to commit returns ok' '
echo bongo bongo bongo >>file &&
git commit -m next -a --dry-run
'
test_expect_failure '--short with stuff to commit returns ok' '
echo bongo bongo bongo >>file &&
git commit -m next -a --short
'
test_expect_failure '--porcelain with stuff to commit returns ok' '
echo bongo bongo bongo >>file &&
git commit -m next -a --porcelain
'
test_expect_success '--long with stuff to commit returns ok' '
echo bongo bongo bongo >>file &&
git commit -m next -a --long
'
test_expect_success 'commit message from non-existing file' '
echo more bongo: bongo bongo bongo bongo >file &&
test_must_fail git commit -F gah -a
'
test_expect_success 'empty commit message' '
# Empty except stray tabs and spaces on a few lines.
sed -e "s/@//g" >msg <<-\EOF &&
@ @
@@
@ @
@Signed-off-by: hula@
EOF
test_must_fail git commit -F msg -a
'
test_expect_success 'template "emptyness" check does not kick in with -F' '
git checkout HEAD file && echo >>file && git add file &&
git commit -t file -F file
'
test_expect_success 'template "emptyness" check' '
git checkout HEAD file && echo >>file && git add file &&
test_must_fail git commit -t file 2>err &&
test_i18ngrep "did not edit" err
'
test_expect_success 'setup: commit message from file' '
git checkout HEAD file && echo >>file && git add file &&
echo this is the commit message, coming from a file >msg &&
git commit -F msg -a
'
test_expect_success 'amend commit' '
cat >editor <<-\EOF &&
#!/bin/sh
sed -e "s/a file/an amend commit/g" < "$1" > "$1-"
mv "$1-" "$1"
EOF
chmod 755 editor &&
EDITOR=./editor git commit --amend
'
test_expect_success 'amend --only ignores staged contents' '
cp file file.expect &&
echo changed >file &&
git add file &&
git commit --no-edit --amend --only &&
git cat-file blob HEAD:file >file.actual &&
test_cmp file.expect file.actual &&
git diff --exit-code
'
test_expect_success 'set up editor' '
cat >editor <<-\EOF &&
#!/bin/sh
sed -e "s/unamended/amended/g" <"$1" >"$1-"
mv "$1-" "$1"
EOF
chmod 755 editor
'
test_expect_success 'amend without launching editor' '
echo unamended >expect &&
git commit --allow-empty -m "unamended" &&
echo needs more bongo >file &&
git add file &&
EDITOR=./editor git commit --no-edit --amend &&
git diff --exit-code HEAD -- file &&
git diff-tree -s --format=%s HEAD >msg &&
test_cmp expect msg
'
test_expect_success '--amend --edit' '
echo amended >expect &&
git commit --allow-empty -m "unamended" &&
echo bongo again >file &&
git add file &&
EDITOR=./editor git commit --edit --amend &&
git diff-tree -s --format=%s HEAD >msg &&
test_cmp expect msg
'
test_expect_success '--amend --edit of empty message' '
cat >replace <<-\EOF &&
#!/bin/sh
echo "amended" >"$1"
EOF
chmod 755 replace &&
git commit --allow-empty --allow-empty-message -m "" &&
echo more bongo >file &&
git add file &&
EDITOR=./replace git commit --edit --amend &&
git diff-tree -s --format=%s HEAD >msg &&
./replace expect &&
test_cmp expect msg
'
test_expect_success '--amend to set message to empty' '
echo bata >file &&
git add file &&
git commit -m "unamended" &&
git commit --amend --allow-empty-message -m "" &&
git diff-tree -s --format=%s HEAD >msg &&
echo "" >expect &&
test_cmp expect msg
'
test_expect_success '--amend to set empty message needs --allow-empty-message' '
echo conga >file &&
git add file &&
git commit -m "unamended" &&
test_must_fail git commit --amend -m "" &&
git diff-tree -s --format=%s HEAD >msg &&
echo "unamended" >expect &&
test_cmp expect msg
'
test_expect_success '-m --edit' '
echo amended >expect &&
git commit --allow-empty -m buffer &&
echo bongo bongo >file &&
git add file &&
EDITOR=./editor git commit -m unamended --edit &&
git diff-tree -s --format=%s HEAD >msg &&
test_cmp expect msg
'
test_expect_success '-m and -F do not mix' '
echo enough with the bongos >file &&
test_must_fail git commit -F msg -m amending .
'
test_expect_success 'using message from other commit' '
git commit -C HEAD^ .
'
test_expect_success 'editing message from other commit' '
cat >editor <<-\EOF &&
#!/bin/sh
sed -e "s/amend/older/g" < "$1" > "$1-"
mv "$1-" "$1"
EOF
chmod 755 editor &&
echo hula hula >file &&
EDITOR=./editor git commit -c HEAD^ -a
'
test_expect_success 'message from stdin' '
echo silly new contents >file &&
echo commit message from stdin |
git commit -F - -a
'
test_expect_success 'overriding author from command line' '
echo gak >file &&
git commit -m author \
--author "Rubber Duck <rduck@convoy.org>" -a >output 2>&1 &&
grep Rubber.Duck output
'
test_expect_success PERL 'interactive add' '
echo 7 |
git commit --interactive |
grep "What now"
'
test_expect_success PERL "commit --interactive doesn't change index if editor aborts" '
echo zoo >file &&
test_must_fail git diff --exit-code >diff1 &&
(echo u ; echo "*" ; echo q) |
(
EDITOR=: &&
export EDITOR &&
test_must_fail git commit --interactive
) &&
git diff >diff2 &&
compare_diff_patch diff1 diff2
'
test_expect_success 'editor not invoked if -F is given' '
cat >editor <<-\EOF &&
#!/bin/sh
sed -e s/good/bad/g <"$1" >"$1-"
mv "$1-" "$1"
EOF
chmod 755 editor &&
echo A good commit message. >msg &&
echo moo >file &&
EDITOR=./editor git commit -a -F msg &&
git show -s --pretty=format:%s >subject &&
grep -q good subject &&
echo quack >file &&
echo Another good message. |
EDITOR=./editor git commit -a -F - &&
git show -s --pretty=format:%s >subject &&
grep -q good subject
'
test_expect_success 'partial commit that involves removal (1)' '
git rm --cached file &&
mv file elif &&
git add elif &&
git commit -m "Partial: add elif" elif &&
git diff-tree --name-status HEAD^ HEAD >current &&
echo "A elif" >expected &&
test_cmp expected current
'
test_expect_success 'partial commit that involves removal (2)' '
git commit -m "Partial: remove file" file &&
git diff-tree --name-status HEAD^ HEAD >current &&
echo "D file" >expected &&
test_cmp expected current
'
test_expect_success 'partial commit that involves removal (3)' '
git rm --cached elif &&
echo elif >elif &&
git commit -m "Partial: modify elif" elif &&
git diff-tree --name-status HEAD^ HEAD >current &&
echo "M elif" >expected &&
test_cmp expected current
'
test_expect_success 'amend commit to fix author' '
oldtick=$GIT_AUTHOR_DATE &&
test_tick &&
git reset --hard &&
git cat-file -p HEAD |
sed -e "s/author.*/author $author $oldtick/" \
-e "s/^\(committer.*> \).*$/\1$GIT_COMMITTER_DATE/" > \
expected &&
git commit --amend --author="$author" &&
git cat-file -p HEAD > current &&
test_cmp expected current
'
test_expect_success 'amend commit to fix date' '
test_tick &&
newtick=$GIT_AUTHOR_DATE &&
git reset --hard &&
git cat-file -p HEAD |
sed -e "s/author.*/author $author $newtick/" \
-e "s/^\(committer.*> \).*$/\1$GIT_COMMITTER_DATE/" > \
expected &&
git commit --amend --date="$newtick" &&
git cat-file -p HEAD > current &&
test_cmp expected current
'
test_expect_success 'commit mentions forced date in output' '
git commit --amend --date=2010-01-02T03:04:05 >output &&
grep "Date: *Sat Jan 2 03:04:05 2010" output
'
test_expect_success 'commit complains about completely bogus dates' '
test_must_fail git commit --amend --date=seventeen
'
test_expect_success 'commit --date allows approxidate' '
git commit --amend \
--date="midnight the 12th of october, anno domini 1979" &&
echo "Fri Oct 12 00:00:00 1979 +0000" >expect &&
git log -1 --format=%ad >actual &&
test_cmp expect actual
'
test_expect_success 'sign off (1)' '
echo 1 >positive &&
git add positive &&
git commit -s -m "thank you" &&
git cat-file commit HEAD | sed -e "1,/^\$/d" >actual &&
(
echo thank you
echo
git var GIT_COMMITTER_IDENT |
sed -e "s/>.*/>/" -e "s/^/Signed-off-by: /"
) >expected &&
test_cmp expected actual
'
test_expect_success 'sign off (2)' '
echo 2 >positive &&
git add positive &&
existing="Signed-off-by: Watch This <watchthis@example.com>" &&
git commit -s -m "thank you
$existing" &&
git cat-file commit HEAD | sed -e "1,/^\$/d" >actual &&
(
echo thank you
echo
echo $existing
git var GIT_COMMITTER_IDENT |
sed -e "s/>.*/>/" -e "s/^/Signed-off-by: /"
) >expected &&
test_cmp expected actual
'
test_expect_success 'signoff gap' '
echo 3 >positive &&
git add positive &&
alt="Alt-RFC-822-Header: Value" &&
git commit -s -m "welcome
$alt" &&
git cat-file commit HEAD | sed -e "1,/^\$/d" > actual &&
(
echo welcome
echo
echo $alt
git var GIT_COMMITTER_IDENT |
sed -e "s/>.*/>/" -e "s/^/Signed-off-by: /"
) >expected &&
test_cmp expected actual
'
test_expect_success 'signoff gap 2' '
echo 4 >positive &&
git add positive &&
alt="fixed: 34" &&
git commit -s -m "welcome
We have now
$alt" &&
git cat-file commit HEAD | sed -e "1,/^\$/d" > actual &&
(
echo welcome
echo
echo We have now
echo $alt
echo
git var GIT_COMMITTER_IDENT |
sed -e "s/>.*/>/" -e "s/^/Signed-off-by: /"
) >expected &&
test_cmp expected actual
'
test_expect_success 'multiple -m' '
>negative &&
git add negative &&
git commit -m "one" -m "two" -m "three" &&
git cat-file commit HEAD | sed -e "1,/^\$/d" >actual &&
(
echo one
echo
echo two
echo
echo three
) >expected &&
test_cmp expected actual
'
test_expect_success 'amend commit to fix author' '
oldtick=$GIT_AUTHOR_DATE &&
test_tick &&
git reset --hard &&
git cat-file -p HEAD |
sed -e "s/author.*/author $author $oldtick/" \
-e "s/^\(committer.*> \).*$/\1$GIT_COMMITTER_DATE/" > \
expected &&
git commit --amend --author="$author" &&
git cat-file -p HEAD > current &&
test_cmp expected current
'
test_expect_success 'git commit <file> with dirty index' '
echo tacocat > elif &&
echo tehlulz > chz &&
git add chz &&
git commit elif -m "tacocat is a palindrome" &&
git show --stat | grep elif &&
git diff --cached | grep chz
'
test_expect_success 'same tree (single parent)' '
git reset --hard &&
test_must_fail git commit -m empty
'
test_expect_success 'same tree (single parent) --allow-empty' '
git commit --allow-empty -m "forced empty" &&
git cat-file commit HEAD | grep forced
'
test_expect_success 'same tree (merge and amend merge)' '
git checkout -b side HEAD^ &&
echo zero >zero &&
git add zero &&
git commit -m "add zero" &&
git checkout master &&
git merge -s ours side -m "empty ok" &&
git diff HEAD^ HEAD >actual &&
: >expected &&
test_cmp expected actual &&
git commit --amend -m "empty really ok" &&
git diff HEAD^ HEAD >actual &&
: >expected &&
test_cmp expected actual
'
test_expect_success 'amend using the message from another commit' '
git reset --hard &&
test_tick &&
git commit --allow-empty -m "old commit" &&
old=$(git rev-parse --verify HEAD) &&
test_tick &&
git commit --allow-empty -m "new commit" &&
new=$(git rev-parse --verify HEAD) &&
test_tick &&
git commit --allow-empty --amend -C "$old" &&
git show --pretty="format:%ad %s" "$old" >expected &&
git show --pretty="format:%ad %s" HEAD >actual &&
test_cmp expected actual
'
test_expect_success 'amend using the message from a commit named with tag' '
git reset --hard &&
test_tick &&
git commit --allow-empty -m "old commit" &&
old=$(git rev-parse --verify HEAD) &&
git tag -a -m "tag on old" tagged-old HEAD &&
test_tick &&
git commit --allow-empty -m "new commit" &&
new=$(git rev-parse --verify HEAD) &&
test_tick &&
git commit --allow-empty --amend -C tagged-old &&
git show --pretty="format:%ad %s" "$old" >expected &&
git show --pretty="format:%ad %s" HEAD >actual &&
test_cmp expected actual
'
test_expect_success 'amend can copy notes' '
git config notes.rewrite.amend true &&
git config notes.rewriteRef "refs/notes/*" &&
test_commit foo &&
git notes add -m"a note" &&
test_tick &&
git commit --amend -m"new foo" &&
test "$(git notes show)" = "a note"
'
test_expect_success 'commit a file whose name is a dash' '
git reset --hard &&
for i in 1 2 3 4 5
do
echo $i
done >./- &&
git add ./- &&
test_tick &&
git commit -m "add dash" >output </dev/null &&
test_i18ngrep " changed, 5 insertions" output
'
test_expect_success '--only works on to-be-born branch' '
# This test relies on having something in the index, as it
# would not otherwise actually prove much. So check this.
test -n "$(git ls-files)" &&
git checkout --orphan orphan &&
echo foo >newfile &&
git add newfile &&
git commit --only newfile -m"--only on unborn branch" &&
echo newfile >expected &&
git ls-tree -r --name-only HEAD >actual &&
test_cmp expected actual
'
test_done
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