git/t/t3511-cherry-pick-x.sh
Jonathan Tan 44dc738a39 sequencer: add newline before adding footers
When encountering a commit message that does not end in a newline,
sequencer does not complete the line before determining if a blank line
should be added.  This causes the "(cherry picked..." and sign-off lines
to sometimes appear on the same line as the last line of the commit
message.

This behavior was introduced by commit 967dfd4 ("sequencer: use
trailer's trailer layout", 2016-11-29). However, a revert of that commit
would not resolve this issue completely: prior to that commit, a
conforming footer was deemed to be non-conforming by
has_conforming_footer() if there was no terminating newline, resulting
in both conforming and non-conforming footers being treated the same
when they should not be.

Resolve this issue, both for conforming and non-conforming footers, and
in both do_pick_commit() and append_signoff(), by always adding a
newline to the commit message if it does not end in one before checking
the footer for conformity.

Reported-by: Brian Norris <computersforpeace@gmail.com>
Signed-off-by: Jonathan Tan <jonathantanmy@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-04-26 17:48:50 -07:00

302 lines
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#!/bin/sh
test_description='Test cherry-pick -x and -s'
. ./test-lib.sh
pristine_detach () {
git cherry-pick --quit &&
git checkout -f "$1^0" &&
git read-tree -u --reset HEAD &&
git clean -d -f -f -q -x
}
mesg_one_line='base: commit message'
mesg_no_footer="$mesg_one_line
OneWordBodyThatsNotA-S-o-B"
mesg_with_footer="$mesg_no_footer
Signed-off-by: $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL>
Signed-off-by: A.U. Thor <author@example.com>
Signed-off-by: B.U. Thor <buthor@example.com>"
mesg_broken_footer="$mesg_no_footer
This is not recognized as a footer because Myfooter is not a recognized token.
Myfooter: A.U. Thor <author@example.com>"
mesg_with_footer_sob="$mesg_with_footer
Signed-off-by: $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL>"
mesg_with_cherry_footer="$mesg_with_footer_sob
(cherry picked from commit da39a3ee5e6b4b0d3255bfef95601890afd80709)
Tested-by: C.U. Thor <cuthor@example.com>"
mesg_unclean="$mesg_one_line
leading empty lines
consecutive empty lines
# hash tag comment
trailing empty lines
"
test_expect_success setup '
git config advice.detachedhead false &&
echo unrelated >unrelated &&
git add unrelated &&
test_commit initial foo a &&
test_commit "$mesg_one_line" foo b mesg-one-line &&
git reset --hard initial &&
test_commit "$mesg_no_footer" foo b mesg-no-footer &&
git reset --hard initial &&
test_commit "$mesg_broken_footer" foo b mesg-broken-footer &&
git reset --hard initial &&
test_commit "$mesg_with_footer" foo b mesg-with-footer &&
git reset --hard initial &&
test_commit "$mesg_with_footer_sob" foo b mesg-with-footer-sob &&
git reset --hard initial &&
test_commit "$mesg_with_cherry_footer" foo b mesg-with-cherry-footer &&
git reset --hard initial &&
test_config commit.cleanup verbatim &&
test_commit "$mesg_unclean" foo b mesg-unclean &&
test_unconfig commit.cleanup &&
pristine_detach initial &&
test_commit conflicting unrelated
'
test_expect_success 'cherry-pick -x inserts blank line after one line subject' '
pristine_detach initial &&
sha1=$(git rev-parse mesg-one-line^0) &&
git cherry-pick -x mesg-one-line &&
cat <<-EOF >expect &&
$mesg_one_line
(cherry picked from commit $sha1)
EOF
git log -1 --pretty=format:%B >actual &&
test_cmp expect actual
'
test_expect_success 'cherry-pick -s inserts blank line after one line subject' '
pristine_detach initial &&
git cherry-pick -s mesg-one-line &&
cat <<-EOF >expect &&
$mesg_one_line
Signed-off-by: $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL>
EOF
git log -1 --pretty=format:%B >actual &&
test_cmp expect actual
'
test_expect_success 'cherry-pick -s inserts blank line after non-conforming footer' '
pristine_detach initial &&
git cherry-pick -s mesg-broken-footer &&
cat <<-EOF >expect &&
$mesg_broken_footer
Signed-off-by: $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL>
EOF
git log -1 --pretty=format:%B >actual &&
test_cmp expect actual
'
test_expect_success 'cherry-pick -s recognizes trailer config' '
pristine_detach initial &&
git -c "trailer.Myfooter.ifexists=add" cherry-pick -s mesg-broken-footer &&
cat <<-EOF >expect &&
$mesg_broken_footer
Signed-off-by: $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL>
EOF
git log -1 --pretty=format:%B >actual &&
test_cmp expect actual
'
test_expect_success 'cherry-pick -x inserts blank line when conforming footer not found' '
pristine_detach initial &&
sha1=$(git rev-parse mesg-no-footer^0) &&
git cherry-pick -x mesg-no-footer &&
cat <<-EOF >expect &&
$mesg_no_footer
(cherry picked from commit $sha1)
EOF
git log -1 --pretty=format:%B >actual &&
test_cmp expect actual
'
test_expect_success 'cherry-pick -s inserts blank line when conforming footer not found' '
pristine_detach initial &&
git cherry-pick -s mesg-no-footer &&
cat <<-EOF >expect &&
$mesg_no_footer
Signed-off-by: $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL>
EOF
git log -1 --pretty=format:%B >actual &&
test_cmp expect actual
'
test_expect_success 'cherry-pick -x -s inserts blank line when conforming footer not found' '
pristine_detach initial &&
sha1=$(git rev-parse mesg-no-footer^0) &&
git cherry-pick -x -s mesg-no-footer &&
cat <<-EOF >expect &&
$mesg_no_footer
(cherry picked from commit $sha1)
Signed-off-by: $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL>
EOF
git log -1 --pretty=format:%B >actual &&
test_cmp expect actual
'
test_expect_success 'cherry-pick -s adds sob when last sob doesnt match committer' '
pristine_detach initial &&
git cherry-pick -s mesg-with-footer &&
cat <<-EOF >expect &&
$mesg_with_footer
Signed-off-by: $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL>
EOF
git log -1 --pretty=format:%B >actual &&
test_cmp expect actual
'
test_expect_success 'cherry-pick -x -s adds sob when last sob doesnt match committer' '
pristine_detach initial &&
sha1=$(git rev-parse mesg-with-footer^0) &&
git cherry-pick -x -s mesg-with-footer &&
cat <<-EOF >expect &&
$mesg_with_footer
(cherry picked from commit $sha1)
Signed-off-by: $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL>
EOF
git log -1 --pretty=format:%B >actual &&
test_cmp expect actual
'
test_expect_success 'cherry-pick -s refrains from adding duplicate trailing sob' '
pristine_detach initial &&
git cherry-pick -s mesg-with-footer-sob &&
cat <<-EOF >expect &&
$mesg_with_footer_sob
EOF
git log -1 --pretty=format:%B >actual &&
test_cmp expect actual
'
test_expect_success 'cherry-pick -x -s adds sob even when trailing sob exists for committer' '
pristine_detach initial &&
sha1=$(git rev-parse mesg-with-footer-sob^0) &&
git cherry-pick -x -s mesg-with-footer-sob &&
cat <<-EOF >expect &&
$mesg_with_footer_sob
(cherry picked from commit $sha1)
Signed-off-by: $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL>
EOF
git log -1 --pretty=format:%B >actual &&
test_cmp expect actual
'
test_expect_success 'cherry-pick -x handles commits with no NL at end of message' '
pristine_detach initial &&
printf "title\n\nSigned-off-by: A <a@example.com>" >msg &&
sha1=$(git commit-tree -p initial mesg-with-footer^{tree} <msg) &&
git cherry-pick -x $sha1 &&
git log -1 --pretty=format:%B >actual &&
printf "\n(cherry picked from commit %s)\n" $sha1 >>msg &&
test_cmp msg actual
'
test_expect_success 'cherry-pick -x handles commits with no footer and no NL at end of message' '
pristine_detach initial &&
printf "title\n\nnot a footer" >msg &&
sha1=$(git commit-tree -p initial mesg-with-footer^{tree} <msg) &&
git cherry-pick -x $sha1 &&
git log -1 --pretty=format:%B >actual &&
printf "\n\n(cherry picked from commit %s)\n" $sha1 >>msg &&
test_cmp msg actual
'
test_expect_success 'cherry-pick -s handles commits with no NL at end of message' '
pristine_detach initial &&
printf "title\n\nSigned-off-by: A <a@example.com>" >msg &&
sha1=$(git commit-tree -p initial mesg-with-footer^{tree} <msg) &&
git cherry-pick -s $sha1 &&
git log -1 --pretty=format:%B >actual &&
printf "\nSigned-off-by: $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL>\n" >>msg &&
test_cmp msg actual
'
test_expect_success 'cherry-pick -s handles commits with no footer and no NL at end of message' '
pristine_detach initial &&
printf "title\n\nnot a footer" >msg &&
sha1=$(git commit-tree -p initial mesg-with-footer^{tree} <msg) &&
git cherry-pick -s $sha1 &&
git log -1 --pretty=format:%B >actual &&
printf "\n\nSigned-off-by: $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL>\n" >>msg &&
test_cmp msg actual
'
test_expect_success 'cherry-pick -x treats "(cherry picked from..." line as part of footer' '
pristine_detach initial &&
sha1=$(git rev-parse mesg-with-cherry-footer^0) &&
git cherry-pick -x mesg-with-cherry-footer &&
cat <<-EOF >expect &&
$mesg_with_cherry_footer
(cherry picked from commit $sha1)
EOF
git log -1 --pretty=format:%B >actual &&
test_cmp expect actual
'
test_expect_success 'cherry-pick -s treats "(cherry picked from..." line as part of footer' '
pristine_detach initial &&
git cherry-pick -s mesg-with-cherry-footer &&
cat <<-EOF >expect &&
$mesg_with_cherry_footer
Signed-off-by: $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL>
EOF
git log -1 --pretty=format:%B >actual &&
test_cmp expect actual
'
test_expect_success 'cherry-pick -x -s treats "(cherry picked from..." line as part of footer' '
pristine_detach initial &&
sha1=$(git rev-parse mesg-with-cherry-footer^0) &&
git cherry-pick -x -s mesg-with-cherry-footer &&
cat <<-EOF >expect &&
$mesg_with_cherry_footer
(cherry picked from commit $sha1)
Signed-off-by: $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL>
EOF
git log -1 --pretty=format:%B >actual &&
test_cmp expect actual
'
test_expect_success 'cherry-pick preserves commit message' '
pristine_detach initial &&
printf "$mesg_unclean" >expect &&
git log -1 --pretty=format:%B mesg-unclean >actual &&
test_cmp expect actual &&
git cherry-pick mesg-unclean &&
git log -1 --pretty=format:%B >actual &&
test_cmp expect actual
'
test_done