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-rw-r--r--builtin/pack-objects.c151
1 files changed, 95 insertions, 56 deletions
diff --git a/builtin/pack-objects.c b/builtin/pack-objects.c
index de36c60ca1..62cc16ddc2 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;
@@ -123,7 +125,6 @@ static unsigned long do_compress(void **pptr, unsigned long size)
void *in, *out;
unsigned long maxsize;
- memset(&stream, 0, sizeof(stream));
git_deflate_init(&stream, pack_compression_level);
maxsize = git_deflate_bound(&stream, size);
@@ -151,7 +152,6 @@ static unsigned long write_large_blob_data(struct git_istream *st, struct sha1fi
unsigned char obuf[1024 * 16];
unsigned long olen = 0;
- memset(&stream, 0, sizeof(stream));
git_deflate_init(&stream, pack_compression_level);
for (;;) {
@@ -540,11 +540,11 @@ static enum write_one_status write_one(struct sha1file *f,
return WRITE_ONE_WRITTEN;
}
-static int mark_tagged(const char *path, const unsigned char *sha1, int flag,
+static int mark_tagged(const char *path, const struct object_id *oid, int flag,
void *cb_data)
{
unsigned char peeled[20];
- struct object_entry *entry = packlist_find(&to_pack, sha1, NULL);
+ struct object_entry *entry = packlist_find(&to_pack, oid->hash, NULL);
if (entry)
entry->tagged = 1;
@@ -812,6 +812,7 @@ 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) {
@@ -960,10 +961,8 @@ static int want_object_in_pack(const unsigned char *sha1,
off_t offset = find_pack_entry_one(sha1, p);
if (offset) {
if (!*found_pack) {
- if (!is_pack_valid(p)) {
- warning("packfile %s cannot be accessed", p->pack_name);
+ if (!is_pack_valid(p))
continue;
- }
*found_offset = offset;
*found_pack = p;
}
@@ -1973,8 +1972,6 @@ 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();
@@ -2100,14 +2097,14 @@ static void ll_find_deltas(struct object_entry **list, unsigned list_size,
#define ll_find_deltas(l, s, w, d, p) find_deltas(l, &s, w, d, p)
#endif
-static int add_ref_tag(const char *path, const unsigned char *sha1, int flag, void *cb_data)
+static int add_ref_tag(const char *path, const struct object_id *oid, int flag, void *cb_data)
{
- unsigned char peeled[20];
+ struct object_id peeled;
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);
+ !peel_ref(path, peeled.hash) && /* peelable? */
+ packlist_find(&to_pack, peeled.hash, NULL)) /* object packed? */
+ add_object_entry(oid->hash, OBJ_TAG, NULL, 0);
return 0;
}
@@ -2214,10 +2211,6 @@ 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;
@@ -2412,6 +2405,27 @@ 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;
@@ -2422,17 +2436,14 @@ 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");
}
@@ -2468,6 +2479,19 @@ static int get_object_list_from_bitmap(struct rev_info *revs)
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;
@@ -2498,6 +2522,7 @@ static void get_object_list(int ac, const char **av)
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);
@@ -2514,10 +2539,23 @@ 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,
@@ -2550,31 +2588,15 @@ static int option_parse_unpack_unreachable(const struct option *opt,
return 0;
}
-static int option_parse_ulong(const struct option *opt,
- const char *arg, int unset)
-{
- if (unset)
- die(_("option %s does not accept negative form"),
- opt->long_name);
-
- if (!git_parse_ulong(arg, opt->value))
- die(_("unable to parse value '%s' for option %s"),
- arg, opt->long_name);
- return 0;
-}
-
-#define OPT_ULONG(s, l, v, h) \
- { OPTION_CALLBACK, (s), (l), (v), "n", (h), \
- PARSE_OPT_NONEG, option_parse_ulong }
-
int cmd_pack_objects(int argc, const char **argv, const char *prefix)
{
int use_internal_rev_list = 0;
int thin = 0;
+ int shallow = 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),
@@ -2588,16 +2610,16 @@ int cmd_pack_objects(int argc, const char **argv, const char *prefix)
{ OPTION_CALLBACK, 0, "index-version", NULL, N_("version[,offset]"),
N_("write the pack index file in the specified idx format version"),
0, option_parse_index_version },
- OPT_ULONG(0, "max-pack-size", &pack_size_limit,
- N_("maximum size of each output pack file")),
+ OPT_MAGNITUDE(0, "max-pack-size", &pack_size_limit,
+ N_("maximum size of each output pack file")),
OPT_BOOL(0, "local", &local,
N_("ignore borrowed objects from alternate object store")),
OPT_BOOL(0, "incremental", &incremental,
N_("ignore packed objects")),
OPT_INTEGER(0, "window", &window,
N_("limit pack window by objects")),
- OPT_ULONG(0, "window-memory", &window_memory_limit,
- N_("limit pack window by memory in addition to object limit")),
+ OPT_MAGNITUDE(0, "window-memory", &window_memory_limit,
+ N_("limit pack window by memory in addition to object limit")),
OPT_INTEGER(0, "depth", &depth,
N_("maximum length of delta chain allowed in the resulting pack")),
OPT_BOOL(0, "reuse-delta", &reuse_delta,
@@ -2621,6 +2643,9 @@ 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,
@@ -2632,6 +2657,8 @@ int cmd_pack_objects(int argc, const char **argv, const char *prefix)
PARSE_OPT_OPTARG, option_parse_unpack_unreachable },
OPT_BOOL(0, "thin", &thin,
N_("create thin packs")),
+ OPT_BOOL(0, "shallow", &shallow,
+ N_("create packs suitable for shallow fetches")),
OPT_BOOL(0, "honor-pack-keep", &ignore_packed_keep,
N_("ignore packs that have companion .keep file")),
OPT_INTEGER(0, "compression", &pack_compression_level,
@@ -2663,24 +2690,30 @@ 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, shallow
+ ? "--objects-edge-aggressive"
+ : "--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)
@@ -2689,6 +2722,10 @@ 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");
@@ -2707,6 +2744,8 @@ 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;
@@ -2724,8 +2763,8 @@ int cmd_pack_objects(int argc, const char **argv, const char *prefix)
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 2024-11-27 05:58:59 +0000