While at there, move exit() back to the caller. It's easier to see the
flow that way than burying it in diff-no-index.c
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@xxxxxxxxx>
---
builtin/diff.c | 21 +++--------------
diff-no-index.c | 49 ++++++++++++++++++++++++----------------
diff.h | 3 ++-
t/t4053-diff-no-index.sh | 3 +--
4 files changed, 35 insertions(+), 41 deletions(-)
diff --git a/builtin/diff.c b/builtin/diff.c
index f0393bba23..52dc3e136f 100644
--- a/builtin/diff.c
+++ b/builtin/diff.c
@@ -320,26 +320,11 @@ int cmd_diff(int argc, const char **argv, const char *prefix)
repo_init_revisions(the_repository, &rev, prefix);
- if (no_index && argc != i + 2) {
- if (no_index == DIFF_NO_INDEX_IMPLICIT) {
- /*
- * There was no --no-index and there were not two
- * paths. It is possible that the user intended
- * to do an inside-repository operation.
- */
- fprintf(stderr, "Not a git repository\n");
- fprintf(stderr,
- "To compare two paths outside a working tree:\n");
- }
- /* Give the usage message for non-repository usage and exit. */
- usagef("git diff %s <path> <path>",
- no_index == DIFF_NO_INDEX_EXPLICIT ?
- "--no-index" : "[--no-index]");
-
- }
if (no_index)
/* If this is a no-index diff, just run it and exit there. */
- diff_no_index(the_repository, &rev, argc, argv);
+ exit(diff_no_index(the_repository, &rev,
+ no_index == DIFF_NO_INDEX_IMPLICIT,
+ argc, argv));
/* Otherwise, we are doing the usual "git" diff */
rev.diffopt.skip_stat_unmatch = !!diff_auto_refresh_index;
diff --git a/diff-no-index.c b/diff-no-index.c
index 9414e922d1..a879f45862 100644
--- a/diff-no-index.c
+++ b/diff-no-index.c
@@ -14,6 +14,7 @@
#include "revision.h"
#include "log-tree.h"
#include "builtin.h"
+#include "parse-options.h"
#include "string-list.h"
#include "dir.h"
@@ -233,35 +234,43 @@ static void fixup_paths(const char **path, struct strbuf *replacement)
}
}
-void diff_no_index(struct repository *r,
- struct rev_info *revs,
- int argc, const char **argv)
+static const char * const diff_no_index_usage[] = {
+ N_("git diff --no-index [<options>] <path> <path>"),
+ NULL
+};
+
+int diff_no_index(struct repository *r,
+ struct rev_info *revs,
+ int implicit_no_index,
+ int argc, const char **argv)
{
- int i;
+ int i, no_index;
const char *paths[2];
struct strbuf replacement = STRBUF_INIT;
const char *prefix = revs->prefix;
+ struct option no_index_options[] = {
+ OPT_BOOL_F(0, "no-index", &no_index, "",
+ PARSE_OPT_NONEG | PARSE_OPT_HIDDEN),
+ OPT_END(),
+ };
+ struct option *options;
/*
* FIXME: --no-index should not look at index and we should be
* able to pass NULL repo. Maybe later.
*/
repo_diff_setup(r, &revs->diffopt);
- for (i = 1; i < argc - 2; ) {
- int j;
- if (!strcmp(argv[i], "--no-index"))
- i++;
- else if (!strcmp(argv[i], "--"))
- i++;
- else {
- j = diff_opt_parse(&revs->diffopt, argv + i, argc - i,
- revs->prefix);
- if (j <= 0)
- die("invalid diff option/value: %s", argv[i]);
- i += j;
- }
+ options = parse_options_concat(no_index_options,
+ revs->diffopt.parseopts);
+ argc = parse_options(argc, argv, revs->prefix, options,
+ diff_no_index_usage, 0);
+ if (argc != 2) {
+ if (implicit_no_index)
+ warning(_("Not a git repository. Use --no-index to "
+ "compare two paths outside a working tree"));
+ usage_with_options(diff_no_index_usage, options);
}
-
+ FREE_AND_NULL(options);
for (i = 0; i < 2; i++) {
const char *p = argv[argc - 2 + i];
if (!strcmp(p, "-"))
@@ -293,7 +302,7 @@ void diff_no_index(struct repository *r,
revs->diffopt.flags.exit_with_status = 1;
if (queue_diff(&revs->diffopt, paths[0], paths[1]))
- exit(1);
+ return 1;
diff_set_mnemonic_prefix(&revs->diffopt, "1/", "2/");
diffcore_std(&revs->diffopt);
diff_flush(&revs->diffopt);
@@ -304,5 +313,5 @@ void diff_no_index(struct repository *r,
* The return code for --no-index imitates diff(1):
* 0 = no changes, 1 = changes, else error
*/
- exit(diff_result_code(&revs->diffopt, 0));
+ return diff_result_code(&revs->diffopt, 0);
}
diff --git a/diff.h b/diff.h
index d9ad73f0e1..03c6afda22 100644
--- a/diff.h
+++ b/diff.h
@@ -437,7 +437,8 @@ int diff_flush_patch_id(struct diff_options *, struct object_id *, int);
int diff_result_code(struct diff_options *, int);
-void diff_no_index(struct repository *, struct rev_info *, int, const char **);
+int diff_no_index(struct repository *, struct rev_info *,
+ int implicit_no_index, int, const char **);
int index_differs_from(struct repository *r, const char *def,
const struct diff_flags *flags,
diff --git a/t/t4053-diff-no-index.sh b/t/t4053-diff-no-index.sh
index 6e0dd6f9e5..fb25cdb789 100755
--- a/t/t4053-diff-no-index.sh
+++ b/t/t4053-diff-no-index.sh
@@ -50,8 +50,7 @@ test_expect_success 'git diff --no-index executed outside repo gives correct err
export GIT_CEILING_DIRECTORIES &&
cd non/git &&
test_must_fail git diff --no-index a 2>actual.err &&
- echo "usage: git diff --no-index <path> <path>" >expect.err &&
- test_cmp expect.err actual.err
+ test_i18ngrep "usage: git diff --no-index" actual.err
)
'
--
2.21.0.548.gd3c7d92dc2
