diff options
| -rw-r--r-- | combine-diff.c | 7 | ||||
| -rwxr-xr-x | t/t4038-diff-combined.sh | 48 |
2 files changed, 53 insertions, 2 deletions
diff --git a/combine-diff.c b/combine-diff.c index 77d7872aaf..3e8bb17831 100644 --- a/combine-diff.c +++ b/combine-diff.c @@ -518,8 +518,11 @@ static int give_context(struct sline *sline, unsigned long cnt, int num_parent) unsigned long k; /* Paint a few lines before the first interesting line. */ - while (j < i) - sline[j++].flag |= mark | no_pre_delete; + while (j < i) { + if (!(sline[j].flag & mark)) + sline[j].flag |= no_pre_delete; + sline[j++].flag |= mark; + } again: /* we know up to i is to be included. where does the diff --git a/t/t4038-diff-combined.sh b/t/t4038-diff-combined.sh index 1261dbbdf5..1019d7b35f 100755 --- a/t/t4038-diff-combined.sh +++ b/t/t4038-diff-combined.sh @@ -353,4 +353,52 @@ test_expect_failure 'combine diff coalesce three parents' ' compare_diff_patch expected actual ' +# Test for a bug reported at +# http://thread.gmane.org/gmane.comp.version-control.git/224410 +# where a delete lines were missing from combined diff output when they +# occurred exactly before the context lines of a later change. +test_expect_success 'combine diff missing delete bug' ' + git commit -m initial --allow-empty && + cat <<-\EOF >test && + 1 + 2 + 3 + 4 + EOF + git add test && + git commit -a -m side1 && + git checkout -B side1 && + git checkout HEAD^ && + cat <<-\EOF >test && + 0 + 1 + 2 + 3 + 4modified + EOF + git add test && + git commit -m side2 && + git branch -f side2 && + test_must_fail git merge --no-commit side1 && + cat <<-\EOF >test && + 1 + 2 + 3 + 4modified + EOF + git add test && + git commit -a -m merge && + git diff-tree -c -p HEAD >actual.tmp && + sed -e "1,/^@@@/d" < actual.tmp >actual && + tr -d Q <<-\EOF >expected && + - 0 + 1 + 2 + 3 + -4 + +4modified + EOF + compare_diff_patch expected actual +' + test_done |