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builtin/repack.c: extract common cruft pack loop 

When generating the list of packs to store in a MIDX (when given the
`--write-midx` option), we include any cruft packs both during
--geometric and non-geometric repacks.

But the rules for when we do and don't have to check whether any of
those cruft packs were queued for deletion differ slightly between the
two cases.

But the two can be unified, provided there is a little bit of extra
detail added in the comment to clarify when it is safe to avoid checking
for any pending deletions (and why it is OK to do so even when not
required).

Signed-off-by: Taylor Blau <me@ttaylorr.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
maint
Taylor Blau 2023-09-13 15:18:03 -04:00 committed by Junio C Hamano
parent 4a17e97246
commit c6a0468f82
1 changed files with 18 additions and 13 deletions
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31
builtin/repack.c
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@ -702,26 +702,31 @@ static void midx_included_packs(struct string_list *include,

string_list_insert(include, strbuf_detach(&buf, NULL));
}

for_each_string_list_item(item, &existing->cruft_packs) {
/*
* no need to check DELETE_PACK, since we're not
* doing an ALL_INTO_ONE repack
*/
string_list_insert(include, xstrfmt("%s.idx", item->string));
}
} else {
for_each_string_list_item(item, &existing->non_kept_packs) {
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 (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) {
/*
* When doing a --geometric repack, there is no need to check
* for deleted packs, since we're by definition not doing an
* ALL_INTO_ONE repack (hence no packs will be deleted).
* Otherwise we must check for and exclude any packs which are
* enqueued for deletion.
*
* So we could omit the conditional below in the --geometric
* case, but doing so is unnecessary since no packs are marked
* as pending deletion (since we only call
* `mark_packs_for_deletion()` when doing an all-into-one
* repack).
*/
if (pack_is_marked_for_deletion(item))
continue;
string_list_insert(include, xstrfmt("%s.idx", item->string));
}
}