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-rw-r--r--builtin/pack-objects.c181
1 files changed, 123 insertions, 58 deletions
diff --git a/builtin/pack-objects.c b/builtin/pack-objects.c
index c7590cb65a..3f9f5c7760 100644
--- a/builtin/pack-objects.c
+++ b/builtin/pack-objects.c
@@ -20,6 +20,9 @@
#include "streaming.h"
#include "thread-utils.h"
#include "pack-bitmap.h"
+#include "reachable.h"
+#include "sha1-array.h"
+#include "argv-array.h"
static const char *pack_usage[] = {
N_("git pack-objects --stdout [options...] [< ref-list | < object-list]"),
@@ -89,8 +92,7 @@ static void index_commit_for_bitmap(struct commit *commit)
{
if (indexed_commits_nr >= indexed_commits_alloc) {
indexed_commits_alloc = (indexed_commits_alloc + 32) * 2;
- indexed_commits = xrealloc(indexed_commits,
- indexed_commits_alloc * sizeof(struct commit *));
+ REALLOC_ARRAY(indexed_commits, indexed_commits_alloc);
}
indexed_commits[indexed_commits_nr++] = commit;
@@ -708,7 +710,7 @@ static struct object_entry **compute_write_order(void)
static off_t write_reused_pack(struct sha1file *f)
{
unsigned char buffer[8192];
- off_t to_write;
+ off_t to_write, total;
int fd;
if (!is_pack_valid(reuse_packfile))
@@ -725,7 +727,7 @@ static off_t write_reused_pack(struct sha1file *f)
if (reuse_packfile_offset < 0)
reuse_packfile_offset = reuse_packfile->pack_size - 20;
- to_write = reuse_packfile_offset - sizeof(struct pack_header);
+ total = to_write = reuse_packfile_offset - sizeof(struct pack_header);
while (to_write) {
int read_pack = xread(fd, buffer, sizeof(buffer));
@@ -738,10 +740,23 @@ static off_t write_reused_pack(struct sha1file *f)
sha1write(f, buffer, read_pack);
to_write -= read_pack;
+
+ /*
+ * We don't know the actual number of objects written,
+ * only how many bytes written, how many bytes total, and
+ * how many objects total. So we can fake it by pretending all
+ * objects we are writing are the same size. This gives us a
+ * smooth progress meter, and at the end it matches the true
+ * answer.
+ */
+ written = reuse_packfile_objects *
+ (((double)(total - to_write)) / total);
+ display_progress(progress_state, written);
}
close(fd);
- written += reuse_packfile_objects;
+ written = reuse_packfile_objects;
+ display_progress(progress_state, written);
return reuse_packfile_offset - sizeof(struct pack_header);
}
@@ -755,7 +770,7 @@ static void write_pack_file(void)
struct object_entry **write_order;
if (progress > pack_to_stdout)
- progress_state = start_progress("Writing objects", nr_result);
+ progress_state = start_progress(_("Writing objects"), nr_result);
written_list = xmalloc(to_pack.nr_objects * sizeof(*written_list));
write_order = compute_write_order();
@@ -769,8 +784,6 @@ static void write_pack_file(void)
f = create_tmp_packfile(&pack_tmp_name);
offset = write_pack_header(f, nr_remaining);
- if (!offset)
- die_errno("unable to write pack header");
if (reuse_packfile) {
off_t packfile_size;
@@ -801,11 +814,12 @@ static void write_pack_file(void)
fixup_pack_header_footer(fd, sha1, pack_tmp_name,
nr_written, sha1, offset);
close(fd);
+ write_bitmap_index = 0;
}
if (!pack_to_stdout) {
struct stat st;
- char tmpname[PATH_MAX];
+ struct strbuf tmpname = STRBUF_INIT;
/*
* Packs are runtime accessed in their mtime
@@ -825,26 +839,22 @@ static void write_pack_file(void)
utb.modtime = --last_mtime;
if (utime(pack_tmp_name, &utb) < 0)
warning("failed utime() on %s: %s",
- tmpname, strerror(errno));
+ pack_tmp_name, strerror(errno));
}
- /* Enough space for "-<sha-1>.pack"? */
- if (sizeof(tmpname) <= strlen(base_name) + 50)
- die("pack base name '%s' too long", base_name);
- snprintf(tmpname, sizeof(tmpname), "%s-", base_name);
+ strbuf_addf(&tmpname, "%s-", base_name);
if (write_bitmap_index) {
bitmap_writer_set_checksum(sha1);
bitmap_writer_build_type_index(written_list, nr_written);
}
- finish_tmp_packfile(tmpname, pack_tmp_name,
+ finish_tmp_packfile(&tmpname, pack_tmp_name,
written_list, nr_written,
&pack_idx_opts, sha1);
if (write_bitmap_index) {
- char *end_of_name_prefix = strrchr(tmpname, 0);
- sprintf(end_of_name_prefix, "%s.bitmap", sha1_to_hex(sha1));
+ strbuf_addf(&tmpname, "%s.bitmap", sha1_to_hex(sha1));
stop_progress(&progress_state);
@@ -853,10 +863,11 @@ static void write_pack_file(void)
bitmap_writer_select_commits(indexed_commits, indexed_commits_nr, -1);
bitmap_writer_build(&to_pack);
bitmap_writer_finish(written_list, nr_written,
- tmpname, write_bitmap_options);
+ tmpname.buf, write_bitmap_options);
write_bitmap_index = 0;
}
+ strbuf_release(&tmpname);
free(pack_tmp_name);
puts(sha1_to_hex(sha1));
}
@@ -1027,7 +1038,7 @@ static int add_object_entry(const unsigned char *sha1, enum object_type type,
exclude, name && no_try_delta(name),
index_pos, found_pack, found_offset);
- display_progress(progress_state, to_pack.nr_objects);
+ display_progress(progress_state, nr_result);
return 1;
}
@@ -1043,7 +1054,7 @@ static int add_object_entry_from_bitmap(const unsigned char *sha1,
create_object_entry(sha1, type, name_hash, 0, 0, index_pos, pack, offset);
- display_progress(progress_state, to_pack.nr_objects);
+ display_progress(progress_state, nr_result);
return 1;
}
@@ -1068,7 +1079,7 @@ static int pbase_tree_cache_ix_incr(int ix)
static struct pbase_tree {
struct pbase_tree *next;
/* This is a phony "cache" entry; we are not
- * going to evict it nor find it through _get()
+ * going to evict it or find it through _get()
* mechanism -- this is for the toplevel node that
* would almost always change with any commit.
*/
@@ -1225,12 +1236,9 @@ static int check_pbase_path(unsigned hash)
if (0 <= pos)
return 1;
pos = -pos - 1;
- if (done_pbase_paths_alloc <= done_pbase_paths_num) {
- done_pbase_paths_alloc = alloc_nr(done_pbase_paths_alloc);
- done_pbase_paths = xrealloc(done_pbase_paths,
- done_pbase_paths_alloc *
- sizeof(unsigned));
- }
+ ALLOC_GROW(done_pbase_paths,
+ done_pbase_paths_num + 1,
+ done_pbase_paths_alloc);
done_pbase_paths_num++;
if (pos < done_pbase_paths_num)
memmove(done_pbase_paths + pos + 1,
@@ -1968,8 +1976,6 @@ static void ll_find_deltas(struct object_entry **list, unsigned list_size,
init_threaded_search();
- if (!delta_search_threads) /* --threads=0 means autodetect */
- delta_search_threads = online_cpus();
if (delta_search_threads <= 1) {
find_deltas(list, &list_size, window, depth, processed);
cleanup_threaded_search();
@@ -2099,7 +2105,7 @@ static int add_ref_tag(const char *path, const unsigned char *sha1, int flag, vo
{
unsigned char peeled[20];
- if (!prefixcmp(path, "refs/tags/") && /* is a tag? */
+ if (starts_with(path, "refs/tags/") && /* is a tag? */
!peel_ref(path, peeled) && /* peelable? */
packlist_find(&to_pack, peeled, NULL)) /* object packed? */
add_object_entry(sha1, OBJ_TAG, NULL, 0);
@@ -2166,7 +2172,7 @@ static void prepare_pack(int window, int depth)
if (nr_deltas && n > 1) {
unsigned nr_done = 0;
if (progress)
- progress_state = start_progress("Compressing objects",
+ progress_state = start_progress(_("Compressing objects"),
nr_deltas);
qsort(delta_list, n, sizeof(*delta_list), type_size_sort);
ll_find_deltas(delta_list, n, window+1, depth, &nr_done);
@@ -2209,10 +2215,6 @@ static int git_pack_config(const char *k, const char *v, void *cb)
cache_max_small_delta_size = git_config_int(k, v);
return 0;
}
- if (!strcmp(k, "pack.writebitmaps")) {
- write_bitmap_index = git_config_bool(k, v);
- return 0;
- }
if (!strcmp(k, "pack.writebitmaphashcache")) {
if (git_config_bool(k, v))
write_bitmap_options |= BITMAP_OPT_HASH_CACHE;
@@ -2407,6 +2409,27 @@ static int has_sha1_pack_kept_or_nonlocal(const unsigned char *sha1)
return 0;
}
+/*
+ * Store a list of sha1s that are should not be discarded
+ * because they are either written too recently, or are
+ * reachable from another object that was.
+ *
+ * This is filled by get_object_list.
+ */
+static struct sha1_array recent_objects;
+
+static int loosened_object_can_be_discarded(const unsigned char *sha1,
+ unsigned long mtime)
+{
+ if (!unpack_unreachable_expiration)
+ return 0;
+ if (mtime > unpack_unreachable_expiration)
+ return 0;
+ if (sha1_array_lookup(&recent_objects, sha1) >= 0)
+ return 0;
+ return 1;
+}
+
static void loosen_unused_packed_objects(struct rev_info *revs)
{
struct packed_git *p;
@@ -2417,17 +2440,14 @@ static void loosen_unused_packed_objects(struct rev_info *revs)
if (!p->pack_local || p->pack_keep)
continue;
- if (unpack_unreachable_expiration &&
- p->mtime < unpack_unreachable_expiration)
- continue;
-
if (open_pack_index(p))
die("cannot open pack index");
for (i = 0; i < p->num_objects; i++) {
sha1 = nth_packed_object_sha1(p, i);
if (!packlist_find(&to_pack, sha1, NULL) &&
- !has_sha1_pack_kept_or_nonlocal(sha1))
+ !has_sha1_pack_kept_or_nonlocal(sha1) &&
+ !loosened_object_can_be_discarded(sha1, p->mtime))
if (force_object_loose(sha1, p->mtime))
die("unable to force loose object");
}
@@ -2456,18 +2476,26 @@ static int get_object_list_from_bitmap(struct rev_info *revs)
&reuse_packfile_offset)) {
assert(reuse_packfile_objects);
nr_result += reuse_packfile_objects;
-
- if (progress) {
- fprintf(stderr, "Reusing existing pack: %d, done.\n",
- reuse_packfile_objects);
- fflush(stderr);
- }
+ display_progress(progress_state, nr_result);
}
traverse_bitmap_commit_list(&add_object_entry_from_bitmap);
return 0;
}
+static void record_recent_object(struct object *obj,
+ const struct name_path *path,
+ const char *last,
+ void *data)
+{
+ sha1_array_append(&recent_objects, obj->sha1);
+}
+
+static void record_recent_commit(struct commit *commit, void *data)
+{
+ sha1_array_append(&recent_objects, commit->object.sha1);
+}
+
static void get_object_list(int ac, const char **av)
{
struct rev_info revs;
@@ -2478,6 +2506,9 @@ static void get_object_list(int ac, const char **av)
save_commit_buffer = 0;
setup_revisions(ac, av, &revs, NULL);
+ /* make sure shallows are read */
+ is_repository_shallow();
+
while (fgets(line, sizeof(line), stdin) != NULL) {
int len = strlen(line);
if (len && line[len - 1] == '\n')
@@ -2490,6 +2521,14 @@ static void get_object_list(int ac, const char **av)
write_bitmap_index = 0;
continue;
}
+ if (starts_with(line, "--shallow ")) {
+ unsigned char sha1[20];
+ if (get_sha1_hex(line + 10, sha1))
+ die("not an SHA-1 '%s'", line + 10);
+ register_shallow(sha1);
+ use_bitmap_index = 0;
+ continue;
+ }
die("not a rev '%s'", line);
}
if (handle_revision_arg(line, &revs, flags, REVARG_CANNOT_BE_FILENAME))
@@ -2504,10 +2543,23 @@ static void get_object_list(int ac, const char **av)
mark_edges_uninteresting(&revs, show_edge);
traverse_commit_list(&revs, show_commit, show_object, NULL);
+ if (unpack_unreachable_expiration) {
+ revs.ignore_missing_links = 1;
+ if (add_unseen_recent_objects_to_traversal(&revs,
+ unpack_unreachable_expiration))
+ die("unable to add recent objects");
+ if (prepare_revision_walk(&revs))
+ die("revision walk setup failed");
+ traverse_commit_list(&revs, record_recent_commit,
+ record_recent_object, NULL);
+ }
+
if (keep_unreachable)
add_objects_in_unpacked_packs(&revs);
if (unpack_unreachable)
loosen_unused_packed_objects(&revs);
+
+ sha1_array_clear(&recent_objects);
}
static int option_parse_index_version(const struct option *opt,
@@ -2562,9 +2614,9 @@ int cmd_pack_objects(int argc, const char **argv, const char *prefix)
int use_internal_rev_list = 0;
int thin = 0;
int all_progress_implied = 0;
- const char *rp_av[6];
- int rp_ac = 0;
+ struct argv_array rp = ARGV_ARRAY_INIT;
int rev_list_unpacked = 0, rev_list_all = 0, rev_list_reflog = 0;
+ int rev_list_index = 0;
struct option pack_objects_options[] = {
OPT_SET_INT('q', "quiet", &progress,
N_("do not show progress meter"), 0),
@@ -2611,6 +2663,9 @@ int cmd_pack_objects(int argc, const char **argv, const char *prefix)
{ OPTION_SET_INT, 0, "reflog", &rev_list_reflog, NULL,
N_("include objects referred by reflog entries"),
PARSE_OPT_NOARG | PARSE_OPT_NONEG, NULL, 1 },
+ { OPTION_SET_INT, 0, "indexed-objects", &rev_list_index, NULL,
+ N_("include objects referred to by the index"),
+ PARSE_OPT_NOARG | PARSE_OPT_NONEG, NULL, 1 },
OPT_BOOL(0, "stdout", &pack_to_stdout,
N_("output pack to stdout")),
OPT_BOOL(0, "include-tag", &include_tag,
@@ -2635,7 +2690,7 @@ int cmd_pack_objects(int argc, const char **argv, const char *prefix)
OPT_END(),
};
- read_replace_refs = 0;
+ check_replace_refs = 0;
reset_pack_idx_option(&pack_idx_opts);
git_config(git_pack_config, NULL);
@@ -2653,24 +2708,28 @@ int cmd_pack_objects(int argc, const char **argv, const char *prefix)
if (pack_to_stdout != !base_name || argc)
usage_with_options(pack_usage, pack_objects_options);
- rp_av[rp_ac++] = "pack-objects";
+ argv_array_push(&rp, "pack-objects");
if (thin) {
use_internal_rev_list = 1;
- rp_av[rp_ac++] = "--objects-edge";
+ argv_array_push(&rp, "--objects-edge");
} else
- rp_av[rp_ac++] = "--objects";
+ argv_array_push(&rp, "--objects");
if (rev_list_all) {
use_internal_rev_list = 1;
- rp_av[rp_ac++] = "--all";
+ argv_array_push(&rp, "--all");
}
if (rev_list_reflog) {
use_internal_rev_list = 1;
- rp_av[rp_ac++] = "--reflog";
+ argv_array_push(&rp, "--reflog");
+ }
+ if (rev_list_index) {
+ use_internal_rev_list = 1;
+ argv_array_push(&rp, "--indexed-objects");
}
if (rev_list_unpacked) {
use_internal_rev_list = 1;
- rp_av[rp_ac++] = "--unpacked";
+ argv_array_push(&rp, "--unpacked");
}
if (!reuse_object)
@@ -2679,6 +2738,10 @@ int cmd_pack_objects(int argc, const char **argv, const char *prefix)
pack_compression_level = Z_DEFAULT_COMPRESSION;
else if (pack_compression_level < 0 || pack_compression_level > Z_BEST_COMPRESSION)
die("bad pack compression level %d", pack_compression_level);
+
+ if (!delta_search_threads) /* --threads=0 means autodetect */
+ delta_search_threads = online_cpus();
+
#ifdef NO_PTHREADS
if (delta_search_threads != 1)
warning("no threads support, ignoring --threads");
@@ -2697,6 +2760,8 @@ int cmd_pack_objects(int argc, const char **argv, const char *prefix)
if (keep_unreachable && unpack_unreachable)
die("--keep-unreachable and --unpack-unreachable are incompatible.");
+ if (!rev_list_all || !rev_list_reflog || !rev_list_index)
+ unpack_unreachable_expiration = 0;
if (!use_internal_rev_list || !pack_to_stdout || is_repository_shallow())
use_bitmap_index = 0;
@@ -2710,12 +2775,12 @@ int cmd_pack_objects(int argc, const char **argv, const char *prefix)
prepare_packed_git();
if (progress)
- progress_state = start_progress("Counting objects", 0);
+ progress_state = start_progress(_("Counting objects"), 0);
if (!use_internal_rev_list)
read_object_list_from_stdin();
else {
- rp_av[rp_ac] = NULL;
- get_object_list(rp_ac, rp_av);
+ get_object_list(rp.argc, rp.argv);
+ argv_array_clear(&rp);
}
cleanup_preferred_base();
if (include_tag && nr_result)
generated by cgit v1.2.3 (git 2.25.1) at 2025-01-21 04:26:22 +0000