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add --chmod: don't update index when --dry-run is used

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`git add --chmod` applies the mode changes even when `--dry-run` is
used. Fix that and add some tests for this option combination.

Helped-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Matheus Tavares <matheus.bernardino@usp.br>
Reviewed-by: Taylor Blau <me@ttaylorr.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Matheus Tavares 2021-02-22 22:10:33 -03:00 committed by Junio C Hamano
parent 966e671106
commit c937d70bfb
2 changed files with 29 additions and 3 deletions
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12
builtin/add.c
View file

@ -38,17 +38,23 @@ struct update_callback_data {
int add_errors;
};
static void chmod_pathspec(struct pathspec *pathspec, char flip)
static void chmod_pathspec(struct pathspec *pathspec, char flip, int show_only)
{
int i;
for (i = 0; i < active_nr; i++) {
struct cache_entry *ce = active_cache[i];
int err;
if (pathspec && !ce_path_match(&the_index, ce, pathspec, NULL))
continue;
if (chmod_cache_entry(ce, flip) < 0)
if (!show_only)
err = chmod_cache_entry(ce, flip);
else
err = S_ISREG(ce->ce_mode) ? 0 : -1;
if (err < 0)
fprintf(stderr, "cannot chmod %cx '%s'\n", flip, ce->name);
}
}
@ -609,7 +615,7 @@ int cmd_add(int argc, const char **argv, const char *prefix)
exit_status |= add_files(&dir, flags);
if (chmod_arg && pathspec.nr)
chmod_pathspec(&pathspec, chmod_arg[0]);
chmod_pathspec(&pathspec, chmod_arg[0], show_only);
unplug_bulk_checkin();
finish:

20
t/t3700-add.sh
View file

@ -386,6 +386,26 @@ test_expect_success POSIXPERM 'git add --chmod=[+-]x does not change the working
! test -x foo4
'
test_expect_success 'git add --chmod honors --dry-run' '
git reset --hard &&
echo foo >foo4 &&
git add foo4 &&
git add --chmod=+x --dry-run foo4 &&
test_mode_in_index 100644 foo4
'
test_expect_success 'git add --chmod --dry-run reports error for non regular files' '
git reset --hard &&
test_ln_s_add foo foo4 &&
git add --chmod=+x --dry-run foo4 2>stderr &&
grep "cannot chmod +x .foo4." stderr
'
test_expect_success 'git add --chmod --dry-run reports error for unmatched pathspec' '
test_must_fail git add --chmod=+x --dry-run nonexistent 2>stderr &&
test_i18ngrep "pathspec .nonexistent. did not match any files" stderr
'
test_expect_success 'no file status change if no pathspec is given' '
>foo5 &&
>foo6 &&