SYNOPSIS
--------
[verse]
-'git pack-refs' [--all] [--no-prune] [--include <pattern>] [--exclude <pattern>]
+'git pack-refs' [--all] [--no-prune] [--auto] [--include <pattern>] [--exclude <pattern>]
DESCRIPTION
-----------
The command usually removes loose refs under `$GIT_DIR/refs`
hierarchy after packing them. This option tells it not to.
+--auto::
+
+Pack refs as needed depending on the current state of the ref database. The
+behavior depends on the ref format used by the repository and may change in the
+future.
++
+ - "files": No special handling for `--auto` has been implemented.
++
+ - "reftable": Tables are compacted such that they form a geometric
+ sequence. For two tables N and N+1, where N+1 is newer, this
+ maintains the property that N is at least twice as big as N+1. Only
+ tables that violate this property are compacted.
+
--include <pattern>::
Pack refs based on a `glob(7)` pattern. Repetitions of this option
#include "revision.h"
static char const * const pack_refs_usage[] = {
- N_("git pack-refs [--all] [--no-prune] [--include <pattern>] [--exclude <pattern>]"),
+ N_("git pack-refs [--all] [--no-prune] [--auto] [--include <pattern>] [--exclude <pattern>]"),
NULL
};
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"),
git pack-refs --include "refs/heads/pack*" --exclude "refs/heads/pack*" &&
test -f .git/refs/heads/dont_pack5'
+test_expect_success '--auto packs and prunes refs as usual' '
+ git branch auto &&
+ test_path_is_file .git/refs/heads/auto &&
+ git pack-refs --auto --all &&
+ test_path_is_missing .git/refs/heads/auto
+'
+
test_expect_success 'see if up-to-date packed refs are preserved' '
git branch q &&
git pack-refs --all --prune &&
test_cmp expect err
'
+test_expect_success 'pack-refs: auto compaction' '
+ test_when_finished "rm -rf repo" &&
+ git init repo &&
+ (
+ cd repo &&
+
+ test_commit A &&
+
+ # The tables should have been auto-compacted, and thus auto
+ # compaction should not have to do anything.
+ ls -1 .git/reftable >tables-expect &&
+ test_line_count = 4 tables-expect &&
+ git pack-refs --auto &&
+ ls -1 .git/reftable >tables-actual &&
+ test_cmp tables-expect tables-actual &&
+
+ # Lock all tables write some refs. Auto-compaction will be
+ # unable to compact tables and thus fails gracefully, leaving
+ # the stack in a sub-optimal state.
+ ls .git/reftable/*.ref |
+ while read table
+ do
+ touch "$table.lock" || exit 1
+ done &&
+ git branch B &&
+ git branch C &&
+ rm .git/reftable/*.lock &&
+ test_line_count = 5 .git/reftable/tables.list &&
+
+ git pack-refs --auto &&
+ test_line_count = 1 .git/reftable/tables.list
+ )
+'
+
test_expect_success 'pack-refs: prunes stale tables' '
test_when_finished "rm -rf repo" &&
git init repo &&