diff options
| -rw-r--r-- | diff.c | 35 | ||||
| -rwxr-xr-x | t/t4017-diff-retval.sh | 14 |
2 files changed, 49 insertions, 0 deletions
@@ -1143,6 +1143,35 @@ struct checkdiff_t { int trailing_blanks_start; }; +static int is_conflict_marker(const char *line, unsigned long len) +{ + char firstchar; + int cnt; + + if (len < 8) + return 0; + firstchar = line[0]; + switch (firstchar) { + case '=': case '>': case '<': + break; + default: + return 0; + } + for (cnt = 1; cnt < 7; cnt++) + if (line[cnt] != firstchar) + return 0; + /* line[0] thru line[6] are same as firstchar */ + if (firstchar == '=') { + /* divider between ours and theirs? */ + if (len != 8 || line[7] != '\n') + return 0; + } else if (len < 8 || !isspace(line[7])) { + /* not divider before ours nor after theirs */ + return 0; + } + return 1; +} + static void checkdiff_consume(void *priv, char *line, unsigned long len) { struct checkdiff_t *data = priv; @@ -1159,6 +1188,12 @@ static void checkdiff_consume(void *priv, char *line, unsigned long len) data->trailing_blanks_start = 0; else if (!data->trailing_blanks_start) data->trailing_blanks_start = data->lineno; + if (is_conflict_marker(line + 1, len - 1)) { + data->status |= 1; + fprintf(data->o->file, + "%s:%d: leftover conflict marker\n", + data->filename, data->lineno); + } bad = ws_check(line + 1, len - 1, data->ws_rule); if (!bad) return; diff --git a/t/t4017-diff-retval.sh b/t/t4017-diff-retval.sh index 0d0fb87f57..d748d45dae 100755 --- a/t/t4017-diff-retval.sh +++ b/t/t4017-diff-retval.sh @@ -113,4 +113,18 @@ test_expect_success 'check should test not just the last line' ' ' +test_expect_success 'check detects leftover conflict markers' ' + git reset --hard && + git checkout HEAD^ && + echo binary >>b && + git commit -m "side" b && + test_must_fail git merge master && + git add b && ( + git --no-pager diff --cached --check >test.out + test $? = 2 + ) && + test "$(grep "conflict marker" test.out | wc -l)" = 3 && + git reset --hard +' + test_done |