git/builtin/pack-refs.c
Patrick Steinhardt 6dcffc68f4 builtin/pack-refs: introduce new "--auto" flag
Calling git-pack-refs(1) will unconditionally cause it to pack all
requested refs regardless of the current state of the ref database. For
example:

  - With the "files" backend we will end up rewriting the complete
    "packed-refs" file even if only a single ref would require
    compaction.

  - With the "reftable" backend we will end up always compacting all
    tables into a single table.

This behaviour can be completely unnecessary depending on the backend
and is thus wasteful.

With the introduction of the `PACK_REFS_AUTO` flag in the preceding
commit we can improve this and let the backends decide for themselves
whether to pack refs in the first place. Expose this functionality via a
new "--auto" flag in git-pack-refs(1), which mirrors the same flag in
both git-gc(1) and git-maintenance(1).

Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2024-03-25 09:54:07 -07:00

57 lines
1.9 KiB
C

#include "builtin.h"
#include "config.h"
#include "gettext.h"
#include "parse-options.h"
#include "refs.h"
#include "repository.h"
#include "revision.h"
static char const * const pack_refs_usage[] = {
N_("git pack-refs [--all] [--no-prune] [--auto] [--include <pattern>] [--exclude <pattern>]"),
NULL
};
int cmd_pack_refs(int argc, const char **argv, const char *prefix)
{
struct ref_exclusions excludes = REF_EXCLUSIONS_INIT;
struct string_list included_refs = STRING_LIST_INIT_NODUP;
struct pack_refs_opts pack_refs_opts = {
.exclusions = &excludes,
.includes = &included_refs,
.flags = PACK_REFS_PRUNE,
};
struct string_list option_excluded_refs = STRING_LIST_INIT_NODUP;
struct string_list_item *item;
int pack_all = 0;
int ret;
struct option opts[] = {
OPT_BOOL(0, "all", &pack_all, N_("pack everything")),
OPT_BIT(0, "prune", &pack_refs_opts.flags, N_("prune loose refs (default)"), PACK_REFS_PRUNE),
OPT_BIT(0, "auto", &pack_refs_opts.flags, N_("auto-pack refs as needed"), PACK_REFS_AUTO),
OPT_STRING_LIST(0, "include", pack_refs_opts.includes, N_("pattern"),
N_("references to include")),
OPT_STRING_LIST(0, "exclude", &option_excluded_refs, N_("pattern"),
N_("references to exclude")),
OPT_END(),
};
git_config(git_default_config, NULL);
if (parse_options(argc, argv, prefix, opts, pack_refs_usage, 0))
usage_with_options(pack_refs_usage, opts);
for_each_string_list_item(item, &option_excluded_refs)
add_ref_exclusion(pack_refs_opts.exclusions, item->string);
if (pack_all)
string_list_append(pack_refs_opts.includes, "*");
if (!pack_refs_opts.includes->nr)
string_list_append(pack_refs_opts.includes, "refs/tags/*");
ret = refs_pack_refs(get_main_ref_store(the_repository), &pack_refs_opts);
clear_ref_exclusions(&excludes);
string_list_clear(&included_refs, 0);
string_list_clear(&option_excluded_refs, 0);
return ret;
}