From ad2f7255b3e93dacd0982a946d30f6595dd8a805 Mon Sep 17 00:00:00 2001 From: Max Kirillov Date: Thu, 15 May 2014 01:12:45 +0300 Subject: [PATCH] git-show: fix 'git show -s' to not add extra terminator after merge commit When git show -s is called for merge commit it prints extra newline after any merge commit. This differs from output for commits with one parent. Fix it by more thorough checking that diff output is disabled. The code in question exists since commit 3969cf7db1. The additional newline is really needed for cases when patch is requested, test t4013-diff-various.sh contains cases which can demonstrate behavior when the condition is restricted further. Tests: Added merge commit to 'set up a bit of history' case in t7007-show.sh to cover the fix. Existing tests are updated to demonstrate the new behaviour. Earlier, the tests that used "git show -s --pretty=format:%s", even though "--pretty=format:%s" calls for item separator semantics and does not ask for the terminating newline after the last item, expected the output to end with such a newline. They were relying on the buggy behaviour. Use of "--format=%s", which is equivalent to "--pretty=tformat:%s" that asks for a terminating newline after each item, is a more realistic way to use the command. In the test 'merge log messages' the expected data is changed, because it was explicitly listing the extra newline. Also the msg.nologff and msg.nolognoff expected files are replaced by one msg.nolog, because they were diffing because of the bug, and now there should be no difference. Signed-off-by: Max Kirillov Signed-off-by: Junio C Hamano --- combine-diff.c | 3 ++- t/t1507-rev-parse-upstream.sh | 2 +- t/t7007-show.sh | 10 +++++++--- t/t7600-merge.sh | 11 +++++------ 4 files changed, 15 insertions(+), 11 deletions(-) diff --git a/combine-diff.c b/combine-diff.c index 3b92c44880..ff6ceafe61 100644 --- a/combine-diff.c +++ b/combine-diff.c @@ -1331,7 +1331,8 @@ void diff_tree_combined(const unsigned char *sha1, if (show_log_first && i == 0) { show_log(rev); - if (rev->verbose_header && opt->output_format) + if (rev->verbose_header && opt->output_format && + opt->output_format != DIFF_FORMAT_NO_OUTPUT) printf("%s%c", diff_line_prefix(opt), opt->line_termination); } diff --git a/t/t1507-rev-parse-upstream.sh b/t/t1507-rev-parse-upstream.sh index 178694ee63..1978947c41 100755 --- a/t/t1507-rev-parse-upstream.sh +++ b/t/t1507-rev-parse-upstream.sh @@ -121,7 +121,7 @@ test_expect_success 'merge my-side@{u} records the correct name' ' git branch -D new ;# can fail but is ok git branch -t new my-side@{u} && git merge -s ours new@{u} && - git show -s --pretty=format:%s >actual && + git show -s --pretty=tformat:%s >actual && echo "Merge remote-tracking branch ${sq}origin/side${sq}" >expect && test_cmp expect actual ) diff --git a/t/t7007-show.sh b/t/t7007-show.sh index e41fa00b80..1b824fe5ed 100755 --- a/t/t7007-show.sh +++ b/t/t7007-show.sh @@ -24,7 +24,8 @@ test_expect_success 'set up a bit of history' ' git tag -m "annotated tag" annotated && git checkout -b side HEAD^^ && test_commit side2 && - test_commit side3 + test_commit side3 && + test_merge merge main3 ' test_expect_success 'showing two commits' ' @@ -109,8 +110,11 @@ test_expect_success 'showing range' ' ' test_expect_success '-s suppresses diff' ' - echo main3 >expect && - git show -s --format=%s main3 >actual && + cat >expect <<-\EOF && + merge + main3 + EOF + git show -s --format=%s merge main3 >actual && test_cmp expect actual ' diff --git a/t/t7600-merge.sh b/t/t7600-merge.sh index 10aa028017..b16462132f 100755 --- a/t/t7600-merge.sh +++ b/t/t7600-merge.sh @@ -57,11 +57,10 @@ create_merge_msgs () { git log --no-merges ^HEAD c2 c3 } >squash.1-5-9 && : >msg.nologff && - echo >msg.nolognoff && + : >msg.nolognoff && { echo "* tag 'c3':" && - echo " commit 3" && - echo + echo " commit 3" } >msg.log } @@ -71,7 +70,7 @@ verify_merge () { git diff --exit-code && if test -n "$3" then - git show -s --pretty=format:%s HEAD >msg.act && + git show -s --pretty=tformat:%s HEAD >msg.act && test_cmp "$3" msg.act fi } @@ -620,10 +619,10 @@ test_expect_success 'merge early part of c2' ' git tag c6 && git branch -f c5-branch c5 && git merge c5-branch~1 && - git show -s --pretty=format:%s HEAD >actual.branch && + git show -s --pretty=tformat:%s HEAD >actual.branch && git reset --keep HEAD^ && git merge c5~1 && - git show -s --pretty=format:%s HEAD >actual.tag && + git show -s --pretty=tformat:%s HEAD >actual.tag && test_cmp expected.branch actual.branch && test_cmp expected.tag actual.tag ' -- 2.11.4.GIT