diff options
| -rw-r--r-- | Documentation/git-merge-file.txt | 3 | ||||
| -rw-r--r-- | builtin/merge-file.c | 3 | ||||
| -rwxr-xr-x | t/t7600-merge.sh | 33 |
3 files changed, 38 insertions, 1 deletions
diff --git a/Documentation/git-merge-file.txt b/Documentation/git-merge-file.txt index d2fc12ec77..f856032613 100644 --- a/Documentation/git-merge-file.txt +++ b/Documentation/git-merge-file.txt @@ -41,7 +41,8 @@ lines from `<other-file>`, or lines from both respectively. The length of the conflict markers can be given with the `--marker-size` option. The exit value of this program is negative on error, and the number of -conflicts otherwise. If the merge was clean, the exit value is 0. +conflicts otherwise (truncated to 127 if there are more than that many +conflicts). If the merge was clean, the exit value is 0. 'git merge-file' is designed to be a minimal clone of RCS 'merge'; that is, it implements all of RCS 'merge''s functionality which is needed by diff --git a/builtin/merge-file.c b/builtin/merge-file.c index 50d0bc873b..55447053f2 100644 --- a/builtin/merge-file.c +++ b/builtin/merge-file.c @@ -104,5 +104,8 @@ int cmd_merge_file(int argc, const char **argv, const char *prefix) free(result.ptr); } + if (ret > 127) + ret = 127; + return ret; } diff --git a/t/t7600-merge.sh b/t/t7600-merge.sh index 75c50eea15..302e238263 100755 --- a/t/t7600-merge.sh +++ b/t/t7600-merge.sh @@ -692,4 +692,37 @@ test_expect_success GPG 'merge --no-edit tag should skip editor' ' test_cmp actual expect ' +test_expect_success 'set up mod-256 conflict scenario' ' + # 256 near-identical stanzas... + for i in $(test_seq 1 256); do + for j in 1 2 3 4 5; do + echo $i-$j + done + done >file && + git add file && + git commit -m base && + + # one side changes the first line of each to "master" + sed s/-1/-master/ <file >tmp && + mv tmp file && + git commit -am master && + + # and the other to "side"; merging the two will + # yield 256 separate conflicts + git checkout -b side HEAD^ && + sed s/-1/-side/ <file >tmp && + mv tmp file && + git commit -am side +' + +test_expect_success 'merge detects mod-256 conflicts (recursive)' ' + git reset --hard && + test_must_fail git merge -s recursive master +' + +test_expect_success 'merge detects mod-256 conflicts (resolve)' ' + git reset --hard && + test_must_fail git merge -s resolve master +' + test_done |