From: Johannes Schindelin <johannes.schindelin@xxxxxx> Yes, yes, this is supposed to be only a band-aid option for `git add -p` not Doing The Right Thing. But as long as we carry the `--allow-overlap` option, we might just as well get it right. This fixes the case where one hunk inserts a line before the first line, and is followed by a hunk whose context overlaps with the first one's and which appends a line at the end. Signed-off-by: Johannes Schindelin <johannes.schindelin@xxxxxx> --- apply.c | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/apply.c b/apply.c index f8a046a6a5..720a631eaa 100644 --- a/apply.c +++ b/apply.c @@ -2661,6 +2661,16 @@ static int find_pos(struct apply_state *state, unsigned long backwards, forwards, current; int backwards_lno, forwards_lno, current_lno; + /* + * When running with --allow-overlap, it is possible that a hunk is + * seen that pretends to start at the beginning (but no longer does), + * and that *still* needs to match the end. So trust `match_end` more + * than `match_beginning`. + */ + if (state->allow_overlap && match_beginning && match_end && + img->nr - preimage->nr != 0) + match_beginning = 0; + /* * If match_beginning or match_end is specified, there is no * point starting from a wrong line that will never match and -- gitgitgadget
