pack-refs: teach pack-refs --include option
Allow users to be more selective over which refs to pack by adding an --include option to git-pack-refs. The existing options allow some measure of selectivity. By default git-pack-refs packs all tags. --all can be used to include all refs, and the previous commit added the ability to exclude certain refs with --exclude. While these knobs give the user some selection over which refs to pack, it could be useful to give more control. For instance, a repository may have a set of branches that are rarely updated and would benefit from being packed. --include would allow the user to easily include a set of branches to be packed while leaving everything else unpacked. Signed-off-by: John Cai <johncai86@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
John Cai committed
May 12, 2023 at 21:34 UTC
4fe42f326e10a547dc65dfe9e5ceaeeee02b98db
6 files changed
+67
-12
Documentation/git-pack-refs.txt
+13
-1
index 546aa122df..284956acb3 100644
--- a/Documentation/git-pack-refs.txt
+++ b/Documentation/git-pack-refs.txt
@@ -8,7 +8,7 @@ git-pack-refs - Pack heads and tags for efficient repository access
SYNOPSIS
--------
[verse]
-'git pack-refs' [--all] [--no-prune] [--exclude <pattern>]
+'git pack-refs' [--all] [--no-prune] [--include <pattern>] [--exclude <pattern>]
DESCRIPTION
-----------
@@ -60,6 +60,15 @@ with many branches of historical interests.
The command usually removes loose refs under `$GIT_DIR/refs`
hierarchy after packing them. This option tells it not to.
+--include <pattern>::
+
+Pack refs based on a `glob(7)` pattern. Repetitions of this option
+accumulate inclusion patterns. If a ref is both included in `--include` and
+`--exclude`, `--exclude` takes precedence. Using `--include` will preclude all
+tags from being included by default. Symbolic refs and broken refs will never
+be packed. When used with `--all`, it will be a noop. Use `--no-include` to clear
+and reset the list of patterns.
+
--exclude <pattern>::
Do not pack refs matching the given `glob(7)` pattern. Repetitions of this option
@@ -70,6 +79,9 @@ unpack it.
When used with `--all`, pack only loose refs which do not match any of
the provided `--exclude` patterns.
+When used with `--include`, refs provided to `--include`, minus refs that are
+provided to `--exclude` will be packed.
+
BUGS
----
builtin/pack-refs.c
+13
-2
index 1d1a64fe38..bcf383cac9 100644
--- a/builtin/pack-refs.c
+++ b/builtin/pack-refs.c
@@ -7,7 +7,7 @@
#include "revision.h"
static char const * const pack_refs_usage[] = {
- N_("git pack-refs [--all] [--no-prune] [--exclude <pattern>]"),
+ N_("git pack-refs [--all] [--no-prune] [--include <pattern>] [--exclude <pattern>]"),
NULL
};
@@ -15,13 +15,18 @@ int cmd_pack_refs(int argc, const char **argv, const char *prefix)
{
unsigned int flags = PACK_REFS_PRUNE;
static struct ref_exclusions excludes = REF_EXCLUSIONS_INIT;
- struct pack_refs_opts pack_refs_opts = {.exclusions = &excludes, .flags = flags};
+ static struct string_list included_refs = STRING_LIST_INIT_NODUP;
+ struct pack_refs_opts pack_refs_opts = { .exclusions = &excludes,
+ .includes = &included_refs,
+ .flags = flags };
static struct string_list option_excluded_refs = STRING_LIST_INIT_NODUP;
struct string_list_item *item;
struct option opts[] = {
OPT_BIT(0, "all", &pack_refs_opts.flags, N_("pack everything"), PACK_REFS_ALL),
OPT_BIT(0, "prune", &pack_refs_opts.flags, N_("prune loose refs (default)"), PACK_REFS_PRUNE),
+ 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(),
@@ -33,5 +38,11 @@ int cmd_pack_refs(int argc, const char **argv, const char *prefix)
for_each_string_list_item(item, &option_excluded_refs)
add_ref_exclusion(pack_refs_opts.exclusions, item->string);
+ if (pack_refs_opts.flags & PACK_REFS_ALL)
+ string_list_append(pack_refs_opts.includes, "*");
+
+ if (!pack_refs_opts.includes->nr)
+ string_list_append(pack_refs_opts.includes, "refs/tags/*");
+
return refs_pack_refs(get_main_ref_store(the_repository), &pack_refs_opts);
}
refs.h
+1
index 46020bd335..933fdebe58 100644
--- a/refs.h
+++ b/refs.h
@@ -66,6 +66,7 @@ struct worktree;
struct pack_refs_opts {
unsigned int flags;
struct ref_exclusions *exclusions;
+ struct string_list *includes;
};
const char *refs_resolve_ref_unsafe(struct ref_store *refs,
refs/files-backend.c
+10
-8
index 8620e01362..fcaf842ed4 100644
--- a/refs/files-backend.c
+++ b/refs/files-backend.c
@@ -1176,18 +1176,13 @@ static int should_pack_ref(const char *refname,
const struct object_id *oid, unsigned int ref_flags,
struct pack_refs_opts *opts)
{
+ struct string_list_item *item;
+
/* Do not pack per-worktree refs: */
if (parse_worktree_ref(refname, NULL, NULL, NULL) !=
REF_WORKTREE_SHARED)
return 0;
- if (ref_excluded(opts->exclusions, refname))
- return 0;
-
- /* Do not pack non-tags unless PACK_REFS_ALL is set: */
- if (!(opts->flags & PACK_REFS_ALL) && !starts_with(refname, "refs/tags/"))
- return 0;
-
/* Do not pack symbolic refs: */
if (ref_flags & REF_ISSYMREF)
return 0;
@@ -1196,7 +1191,14 @@ static int should_pack_ref(const char *refname,
if (!ref_resolves_to_object(refname, the_repository, oid, ref_flags))
return 0;
- return 1;
+ if (ref_excluded(opts->exclusions, refname))
+ return 0;
+
+ for_each_string_list_item(item, opts->includes)
+ if (!wildmatch(item->string, refname, 0))
+ return 1;
+
+ return 0;
}
static int files_pack_refs(struct ref_store *ref_store,
t/helper/test-ref-store.c
+9
-1
index de4197708d..a6977b5e83 100644
--- a/t/helper/test-ref-store.c
+++ b/t/helper/test-ref-store.c
@@ -5,6 +5,7 @@
#include "worktree.h"
#include "object-store.h"
#include "repository.h"
+#include "revision.h"
struct flag_definition {
const char *name;
@@ -116,7 +117,14 @@ static struct flag_definition pack_flags[] = { FLAG_DEF(PACK_REFS_PRUNE),
static int cmd_pack_refs(struct ref_store *refs, const char **argv)
{
unsigned int flags = arg_flags(*argv++, "flags", pack_flags);
- struct pack_refs_opts pack_opts = { .flags = flags };
+ static struct ref_exclusions exclusions = REF_EXCLUSIONS_INIT;
+ static struct string_list included_refs = STRING_LIST_INIT_NODUP;
+ struct pack_refs_opts pack_opts = { .flags = flags,
+ .exclusions = &exclusions,
+ .includes = &included_refs };
+
+ if (pack_opts.flags & PACK_REFS_ALL)
+ string_list_append(pack_opts.includes, "*");
return refs_pack_refs(refs, &pack_opts);
}
t/t3210-pack-refs.sh
+21
index 925b90cd3b..9f399d2f75 100755
--- a/t/t3210-pack-refs.sh
+++ b/t/t3210-pack-refs.sh
@@ -124,6 +124,27 @@ test_expect_success 'test --no-exclude refs clears excluded refs' '
! test -f .git/refs/heads/dont_pack3 &&
! test -f .git/refs/heads/dont_pack4'
+test_expect_success 'test only included refs are packed' '
+ git branch pack_this1 &&
+ git branch pack_this2 &&
+ git tag dont_pack5 &&
+ git pack-refs --include "refs/heads/pack_this*" &&
+ test -f .git/refs/tags/dont_pack5 &&
+ ! test -f .git/refs/heads/pack_this1 &&
+ ! test -f .git/refs/heads/pack_this2'
+
+test_expect_success 'test --no-include refs clears included refs' '
+ git branch pack1 &&
+ git branch pack2 &&
+ git pack-refs --include "refs/heads/pack*" --no-include &&
+ test -f .git/refs/heads/pack1 &&
+ test -f .git/refs/heads/pack2'
+
+test_expect_success 'test --exclude takes precedence over --include' '
+ git branch dont_pack5 &&
+ git pack-refs --include "refs/heads/pack*" --exclude "refs/heads/pack*" &&
+ test -f .git/refs/heads/dont_pack5'
+
test_expect_success \
'see if up-to-date packed refs are preserved' \
'git branch q &&