From 4a17e97246470049b8bde5be0d767ef66e550555 Mon Sep 17 00:00:00 2001 From: Taylor Blau Date: Wed, 13 Sep 2023 15:18:00 -0400 Subject: [PATCH] builtin/repack.c: avoid directly inspecting "util" The `->util` field corresponding to each string_list_item is used to track the existence of some pack at the beginning of a repack operation was originally intended to be used as a bitfield. This bitfield tracked: - (1 << 0): whether or not the pack should be deleted - (1 << 1): whether or not the pack is cruft The previous commit removed the use of the second bit, but a future patch (from a different series than this one) will introduce a new use of it. So we could stop treating the util pointer as a bitfield and instead start treating it as if it were a boolean. But this would require some backtracking when that later patch is applied. Instead, let's avoid touching the ->util field directly, and instead introduce convenience functions like: - pack_mark_for_deletion() - pack_is_marked_for_deletion() Helped-by: Junio C Hamano Helped-by: Jeff King Helped-by: Patrick Steinhardt Signed-off-by: Taylor Blau Signed-off-by: Junio C Hamano --- builtin/repack.c | 18 ++++++++++++++---- 1 file changed, 14 insertions(+), 4 deletions(-) diff --git a/builtin/repack.c b/builtin/repack.c index 478fab96c9..be8d314e0c 100644 --- a/builtin/repack.c +++ b/builtin/repack.c @@ -111,6 +111,16 @@ static int has_existing_non_kept_packs(const struct existing_packs *existing) return existing->non_kept_packs.nr || existing->cruft_packs.nr; } +static void pack_mark_for_deletion(struct string_list_item *item) +{ + item->util = (void*)((uintptr_t)item->util | DELETE_PACK); +} + +static int pack_is_marked_for_deletion(struct string_list_item *item) +{ + return (uintptr_t)item->util & DELETE_PACK; +} + static void mark_packs_for_deletion_1(struct string_list *names, struct string_list *list) { @@ -130,7 +140,7 @@ static void mark_packs_for_deletion_1(struct string_list *names, * (if `-d` was given). */ if (!string_list_has_string(names, sha1)) - item->util = (void*)(uintptr_t)((size_t)item->util | DELETE_PACK); + pack_mark_for_deletion(item); } } @@ -158,7 +168,7 @@ static void remove_redundant_packs_1(struct string_list *packs) { struct string_list_item *item; for_each_string_list_item(item, packs) { - if (!((uintptr_t)item->util & DELETE_PACK)) + if (!pack_is_marked_for_deletion(item)) continue; remove_redundant_pack(packdir, item->string); } @@ -702,13 +712,13 @@ static void midx_included_packs(struct string_list *include, } } else { for_each_string_list_item(item, &existing->non_kept_packs) { - if ((uintptr_t)item->util & DELETE_PACK) + if (pack_is_marked_for_deletion(item)) continue; string_list_insert(include, xstrfmt("%s.idx", item->string)); } for_each_string_list_item(item, &existing->cruft_packs) { - if ((uintptr_t)item->util & DELETE_PACK) + if (pack_is_marked_for_deletion(item)) continue; string_list_insert(include, xstrfmt("%s.idx", item->string)); }