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merge: add scissors line on merge conflict

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This fixes a bug where the scissors line is placed after the Conflicts:
section, in the case where a merge conflict occurs and
commit.cleanup = scissors.

Next, if commit.cleanup = scissors is specified, don't produce a
scissors line in commit if one already exists in the MERGE_MSG file.

Helped-by: Eric Sunshine <sunshine@sunshineco.com>
Signed-off-by: Denton Liu <liu.denton@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Denton Liu
2019-04-17 11:23:28 +01:00
committed by Junio C Hamano
parent d540b70c85
commit 1055997e2f
4 changed files with 82 additions and 7 deletions
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22
builtin/commit.c
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@ -668,6 +668,7 @@ static int prepare_to_commit(const char *index_file, const char *prefix,
const char *hook_arg2 = NULL;
int clean_message_contents = (cleanup_mode != COMMIT_MSG_CLEANUP_NONE);
int old_display_comment_prefix;
int merge_contains_scissors = 0;
/* This checks and barfs if author is badly specified */
determine_author_info(author_ident);
@ -728,6 +729,8 @@ static int prepare_to_commit(const char *index_file, const char *prefix,
strbuf_addbuf(&sb, &message);
hook_arg1 = "message";
} else if (!stat(git_path_merge_msg(the_repository), &statbuf)) {
size_t merge_msg_start;
/*
* prepend SQUASH_MSG here if it exists and a
* "merge --squash" was originally performed
@ -738,8 +741,16 @@ static int prepare_to_commit(const char *index_file, const char *prefix,
hook_arg1 = "squash";
} else
hook_arg1 = "merge";
merge_msg_start = sb.len;
if (strbuf_read_file(&sb, git_path_merge_msg(the_repository), 0) < 0)
die_errno(_("could not read MERGE_MSG"));
if (cleanup_mode == COMMIT_MSG_CLEANUP_SCISSORS &&
wt_status_locate_end(sb.buf + merge_msg_start,
sb.len - merge_msg_start) <
sb.len - merge_msg_start)
merge_contains_scissors = 1;
} else if (!stat(git_path_squash_msg(the_repository), &statbuf)) {
if (strbuf_read_file(&sb, git_path_squash_msg(the_repository), 0) < 0)
die_errno(_("could not read SQUASH_MSG"));
@ -807,7 +818,8 @@ static int prepare_to_commit(const char *index_file, const char *prefix,
struct ident_split ci, ai;
if (whence != FROM_COMMIT) {
if (cleanup_mode == COMMIT_MSG_CLEANUP_SCISSORS)
if (cleanup_mode == COMMIT_MSG_CLEANUP_SCISSORS &&
!merge_contains_scissors)
wt_status_add_cut_line(s->fp);
status_printf_ln(s, GIT_COLOR_NORMAL,
whence == FROM_MERGE
@ -832,10 +844,10 @@ static int prepare_to_commit(const char *index_file, const char *prefix,
_("Please enter the commit message for your changes."
" Lines starting\nwith '%c' will be ignored, and an empty"
" message aborts the commit.\n"), comment_line_char);
else if (cleanup_mode == COMMIT_MSG_CLEANUP_SCISSORS &&
whence == FROM_COMMIT)
wt_status_add_cut_line(s->fp);
else /* COMMIT_MSG_CLEANUP_SPACE, that is. */
else if (cleanup_mode == COMMIT_MSG_CLEANUP_SCISSORS) {
if (whence == FROM_COMMIT && !merge_contains_scissors)
wt_status_add_cut_line(s->fp);
} else /* COMMIT_MSG_CLEANUP_SPACE, that is. */
status_printf(s, GIT_COLOR_NORMAL,
_("Please enter the commit message for your changes."
" Lines starting\n"