pack-objects: factor out handling '--stdin-packs'

At the bottom of cmd_pack_objects() we check which mode the command is running in (e.g., generating a cruft pack, handling '--stdin-packs', using the internal rev-list, etc.) and handle the mode appropriately. The '--stdin-packs' case is handled inline (dating back to its introduction in 339bce27f4 (builtin/pack-objects.c: add '--stdin-packs' option, 2021-02-22)) since it is relatively short. Extract the body of "if (stdin_packs)" into its own function to prepare for the implementation to become lengthier in a following commit. Signed-off-by: Taylor Blau <me@ttaylorr.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>

Taylor Blau committed Jun 23, 2025 at 18:32 UTC 67e1a7827bf81f84ba8933d494e441139bd3f34d
1 file changed +12 -6
builtin/pack-objects.c
+12 -6
@@ -3909,6 +3909,17 @@ static void read_packs_list_from_stdin(void)
3909 string_list_clear(&exclude_packs, 0);
3910 }
3911
3912 +static void add_unreachable_loose_objects(void);
3913 +
3914 +static void read_stdin_packs(int rev_list_unpacked)
3915 +{
3916 + /* avoids adding objects in excluded packs */
3917 + ignore_packed_keep_in_core = 1;
3918 + read_packs_list_from_stdin();
3919 + if (rev_list_unpacked)
3920 + add_unreachable_loose_objects();
3921 +}
3922 +
3923 static void add_cruft_object_entry(const struct object_id *oid, enum object_type type,
3924 struct packed_git *pack, off_t offset,
3925 const char *name, uint32_t mtime)
@@ -4004,7 +4015,6 @@ static void mark_pack_kept_in_core(struct string_list *packs, unsigned keep)
4015 }
4016 }
4017
4007 -static void add_unreachable_loose_objects(void);
4018 static void add_objects_in_unpacked_packs(void);
4019
4020 static void enumerate_cruft_objects(void)
@@ -5135,11 +5145,7 @@ int cmd_pack_objects(int argc,
5145 progress_state = start_progress(the_repository,
5146 _("Enumerating objects"), 0);
5147 if (stdin_packs) {
5138 - /* avoids adding objects in excluded packs */
5139 - ignore_packed_keep_in_core = 1;
5140 - read_packs_list_from_stdin();
5141 - if (rev_list_unpacked)
5142 - add_unreachable_loose_objects();
5148 + read_stdin_packs(rev_list_unpacked);
5149 } else if (cruft) {
5150 read_cruft_objects();
5151 } else if (!use_internal_rev_list) {