t/helper: add 'pack-mtimes' test-tool

In the next patch, we will implement and test support for writing a
cruft pack via a special mode of `git pack-objects`. To make sure that
objects are written with the correct timestamps, and a new test-tool
that can dump the object names and corresponding timestamps from a given
`.mtimes` file.

Signed-off-by: Taylor Blau <me@ttaylorr.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Taylor Blau 2022-05-20 19:17:46 -04:00 committed by Junio C Hamano
parent 5dfaf49a5a
commit 2bd4427824
4 changed files with 59 additions and 0 deletions

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@ -738,6 +738,7 @@ TEST_BUILTINS_OBJS += test-oid-array.o
TEST_BUILTINS_OBJS += test-oidmap.o
TEST_BUILTINS_OBJS += test-oidtree.o
TEST_BUILTINS_OBJS += test-online-cpus.o
TEST_BUILTINS_OBJS += test-pack-mtimes.o
TEST_BUILTINS_OBJS += test-parse-options.o
TEST_BUILTINS_OBJS += test-parse-pathspec-file.o
TEST_BUILTINS_OBJS += test-partial-clone.o

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@ -0,0 +1,56 @@
#include "git-compat-util.h"
#include "test-tool.h"
#include "strbuf.h"
#include "object-store.h"
#include "packfile.h"
#include "pack-mtimes.h"
static void dump_mtimes(struct packed_git *p)
{
uint32_t i;
if (load_pack_mtimes(p) < 0)
die("could not load pack .mtimes");
for (i = 0; i < p->num_objects; i++) {
struct object_id oid;
if (nth_packed_object_id(&oid, p, i) < 0)
die("could not load object id at position %"PRIu32, i);
printf("%s %"PRIu32"\n",
oid_to_hex(&oid), nth_packed_mtime(p, i));
}
}
static const char *pack_mtimes_usage = "\n"
" test-tool pack-mtimes <pack-name.mtimes>";
int cmd__pack_mtimes(int argc, const char **argv)
{
struct strbuf buf = STRBUF_INIT;
struct packed_git *p;
setup_git_directory();
if (argc != 2)
usage(pack_mtimes_usage);
for (p = get_all_packs(the_repository); p; p = p->next) {
strbuf_addstr(&buf, basename(p->pack_name));
strbuf_strip_suffix(&buf, ".pack");
strbuf_addstr(&buf, ".mtimes");
if (!strcmp(buf.buf, argv[1]))
break;
strbuf_reset(&buf);
}
strbuf_release(&buf);
if (!p)
die("could not find pack '%s'", argv[1]);
dump_mtimes(p);
return 0;
}

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@ -48,6 +48,7 @@ static struct test_cmd cmds[] = {
{ "oidmap", cmd__oidmap },
{ "oidtree", cmd__oidtree },
{ "online-cpus", cmd__online_cpus },
{ "pack-mtimes", cmd__pack_mtimes },
{ "parse-options", cmd__parse_options },
{ "parse-pathspec-file", cmd__parse_pathspec_file },
{ "partial-clone", cmd__partial_clone },

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@ -38,6 +38,7 @@ int cmd__mktemp(int argc, const char **argv);
int cmd__oidmap(int argc, const char **argv);
int cmd__oidtree(int argc, const char **argv);
int cmd__online_cpus(int argc, const char **argv);
int cmd__pack_mtimes(int argc, const char **argv);
int cmd__parse_options(int argc, const char **argv);
int cmd__parse_pathspec_file(int argc, const char** argv);
int cmd__partial_clone(int argc, const char **argv);