commit.c: make find_commit_subject() more robust

Just like the pretty printing machinery, we should simply ignore
blank lines at the beginning of the commit messages.

This discrepancy was noticed when an early version of the
rebase--helper produced commit objects with more than one empty line
between the header and the commit message.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Johannes Schindelin 2016-06-22 22:20:20 +02:00 committed by Junio C Hamano
parent 7735612244
commit 4e1b06da25
2 changed files with 18 additions and 1 deletions

View File

@ -398,7 +398,7 @@ int find_commit_subject(const char *commit_buffer, const char **subject)
while (*p && (*p != '\n' || p[1] != '\n'))
p++;
if (*p) {
p += 2;
p = skip_blank_lines(p + 2);
for (eol = p; *eol && *eol != '\n'; eol++)
; /* do nothing */
} else

View File

@ -87,4 +87,21 @@ test_expect_success 'blame --line-porcelain output' '
test_cmp expect actual
'
test_expect_success '--porcelain detects first non-blank line as subject' '
(
GIT_INDEX_FILE=.git/tmp-index &&
export GIT_INDEX_FILE &&
echo "This is it" >single-file &&
git add single-file &&
tree=$(git write-tree) &&
commit=$(printf "%s\n%s\n%s\n\n\n \noneline\n\nbody\n" \
"tree $tree" \
"author A <a@b.c> 123456789 +0000" \
"committer C <c@d.e> 123456789 +0000" |
git hash-object -w -t commit --stdin) &&
git blame --porcelain $commit -- single-file >output &&
grep "^summary oneline$" output
)
'
test_done