admin/git
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

diff: factor out --follow pathspec check

Browse Source 
In --follow mode, we require exactly one pathspec. We check this
condition in two places:

  - in diff_setup_done(), we complain if --follow is used with an
    inapropriate pathspec

  - in git-log's revision "tweak" function, we enable log.follow only if
    the pathspec allows it

The duplication isn't a big deal right now, since the logic is so
simple. But in preparation for it becoming more complex, let's pull it
into a shared function.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Jeff King
2023-06-01 13:41:06 -04:00
committed by Junio C Hamano
parent 8e32caaa78
commit 9eac5954e8
3 changed files with 20 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files

14
diff.c
View File

@@ -4721,6 +4721,16 @@ unsigned diff_filter_bit(char status)
return filter_bit[(int) status];
}
int diff_check_follow_pathspec(struct pathspec *ps, int die_on_error)
{
if (ps->nr != 1) {
if (die_on_error)
die(_("--follow requires exactly one pathspec"));
return 0;
}
return 1;
}
void diff_setup_done(struct diff_options *options)
{
unsigned check_mask = DIFF_FORMAT_NAME |
@@ -4828,8 +4838,8 @@ void diff_setup_done(struct diff_options *options)
options->diff_path_counter = 0;
if (options->flags.follow_renames && options->pathspec.nr != 1)
die(_("--follow requires exactly one pathspec"));
if (options->flags.follow_renames)
diff_check_follow_pathspec(&options->pathspec, 1);
if (!options->use_color || external_diff())
options->color_moved = 0;