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-rw-r--r--builtin-pack-objects.c124
1 files changed, 87 insertions, 37 deletions
diff --git a/builtin-pack-objects.c b/builtin-pack-objects.c
index d1553455ba..4429d53a1e 100644
--- a/builtin-pack-objects.c
+++ b/builtin-pack-objects.c
@@ -22,15 +22,16 @@
#include <pthread.h>
#endif
-static const char pack_usage[] = "\
-git pack-objects [{ -q | --progress | --all-progress }] \n\
- [--max-pack-size=N] [--local] [--incremental] \n\
- [--window=N] [--window-memory=N] [--depth=N] \n\
- [--no-reuse-delta] [--no-reuse-object] [--delta-base-offset] \n\
- [--threads=N] [--non-empty] [--revs [--unpacked | --all]*] [--reflog] \n\
- [--stdout | base-name] [--include-tag] \n\
- [--keep-unreachable | --unpack-unreachable] \n\
- [<ref-list | <object-list]";
+static const char pack_usage[] =
+ "git pack-objects [{ -q | --progress | --all-progress }]\n"
+ " [--all-progress-implied]\n"
+ " [--max-pack-size=N] [--local] [--incremental]\n"
+ " [--window=N] [--window-memory=N] [--depth=N]\n"
+ " [--no-reuse-delta] [--no-reuse-object] [--delta-base-offset]\n"
+ " [--threads=N] [--non-empty] [--revs [--unpacked | --all]*]\n"
+ " [--reflog] [--stdout | base-name] [--include-tag]\n"
+ " [--keep-unreachable | --unpack-unreachable \n"
+ " [<ref-list | <object-list]";
struct object_entry {
struct pack_idx_entry idx;
@@ -78,7 +79,7 @@ static int progress = 1;
static int window = 10;
static uint32_t pack_size_limit, pack_size_limit_cfg;
static int depth = 50;
-static int delta_search_threads = 1;
+static int delta_search_threads;
static int pack_to_stdout;
static int num_preferred_base;
static struct progress *progress_state;
@@ -86,7 +87,7 @@ static int pack_compression_level = Z_DEFAULT_COMPRESSION;
static int pack_compression_seen;
static unsigned long delta_cache_size = 0;
-static unsigned long max_delta_cache_size = 0;
+static unsigned long max_delta_cache_size = 256 * 1024 * 1024;
static unsigned long cache_max_small_delta_size = 1000;
static unsigned long window_memory_limit = 0;
@@ -293,7 +294,7 @@ static unsigned long write_object(struct sha1file *f,
die("unable to read %s", sha1_to_hex(entry->idx.sha1));
/*
* make sure no cached delta data remains from a
- * previous attempt before a pack split occured.
+ * previous attempt before a pack split occurred.
*/
free(entry->delta_data);
entry->delta_data = NULL;
@@ -536,11 +537,9 @@ static void write_pack_file(void)
base_name, sha1_to_hex(sha1));
free_pack_by_name(tmpname);
if (adjust_perm(pack_tmp_name, mode))
- die("unable to make temporary pack file readable: %s",
- strerror(errno));
+ die_errno("unable to make temporary pack file readable");
if (rename(pack_tmp_name, tmpname))
- die("unable to rename temporary pack file: %s",
- strerror(errno));
+ die_errno("unable to rename temporary pack file");
/*
* Packs are runtime accessed in their mtime
@@ -566,11 +565,9 @@ static void write_pack_file(void)
snprintf(tmpname, sizeof(tmpname), "%s-%s.idx",
base_name, sha1_to_hex(sha1));
if (adjust_perm(idx_tmp_name, mode))
- die("unable to make temporary index file readable: %s",
- strerror(errno));
+ die_errno("unable to make temporary index file readable");
if (rename(idx_tmp_name, tmpname))
- die("unable to rename temporary index file: %s",
- strerror(errno));
+ die_errno("unable to rename temporary index file");
free(idx_tmp_name);
free(pack_tmp_name);
@@ -653,8 +650,7 @@ static void rehash_objects(void)
static unsigned name_hash(const char *name)
{
- unsigned char c;
- unsigned hash = 0;
+ unsigned c, hash = 0;
if (!name)
return 0;
@@ -1013,6 +1009,33 @@ static void add_preferred_base(unsigned char *sha1)
it->pcache.tree_size = size;
}
+static void cleanup_preferred_base(void)
+{
+ struct pbase_tree *it;
+ unsigned i;
+
+ it = pbase_tree;
+ pbase_tree = NULL;
+ while (it) {
+ struct pbase_tree *this = it;
+ it = this->next;
+ free(this->pcache.tree_data);
+ free(this);
+ }
+
+ for (i = 0; i < ARRAY_SIZE(pbase_tree_cache); i++) {
+ if (!pbase_tree_cache[i])
+ continue;
+ free(pbase_tree_cache[i]->tree_data);
+ free(pbase_tree_cache[i]);
+ pbase_tree_cache[i] = NULL;
+ }
+
+ free(done_pbase_paths);
+ done_pbase_paths = NULL;
+ done_pbase_paths_num = done_pbase_paths_alloc = 0;
+}
+
static void check_object(struct object_entry *entry)
{
if (entry->in_pack) {
@@ -1604,18 +1627,28 @@ static void *threaded_find_deltas(void *arg)
static void ll_find_deltas(struct object_entry **list, unsigned list_size,
int window, int depth, unsigned *processed)
{
- struct thread_params p[delta_search_threads];
+ struct thread_params *p;
int i, ret, active_threads = 0;
+ 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);
return;
}
+ if (progress > pack_to_stdout)
+ fprintf(stderr, "Delta compression using up to %d threads.\n",
+ delta_search_threads);
+ p = xcalloc(delta_search_threads, sizeof(*p));
/* Partition the work amongst work threads. */
for (i = 0; i < delta_search_threads; i++) {
unsigned sub_size = list_size / (delta_search_threads - i);
+ /* don't use too small segments or no deltas will be found */
+ if (sub_size < 2*window && i+1 < delta_search_threads)
+ sub_size = 0;
+
p[i].window = window;
p[i].depth = depth;
p[i].processed = processed;
@@ -1715,6 +1748,7 @@ static void ll_find_deltas(struct object_entry **list, unsigned list_size,
active_threads--;
}
}
+ free(p);
}
#else
@@ -1806,7 +1840,7 @@ static void prepare_pack(int window, int depth)
static int git_pack_config(const char *k, const char *v, void *cb)
{
- if(!strcmp(k, "pack.window")) {
+ if (!strcmp(k, "pack.window")) {
window = git_config_int(k, v);
return 0;
}
@@ -1873,7 +1907,7 @@ static void read_object_list_from_stdin(void)
if (!ferror(stdin))
die("fgets returned NULL, not EOF, not error!");
if (errno != EINTR)
- die("fgets: %s", strerror(errno));
+ die_errno("fgets");
clearerr(stdin);
continue;
}
@@ -1894,19 +1928,25 @@ static void read_object_list_from_stdin(void)
#define OBJECT_ADDED (1u<<20)
-static void show_commit(struct commit *commit)
+static void show_commit(struct commit *commit, void *data)
{
add_object_entry(commit->object.sha1, OBJ_COMMIT, NULL, 0);
commit->object.flags |= OBJECT_ADDED;
}
-static void show_object(struct object_array_entry *p)
+static void show_object(struct object *obj, const struct name_path *path, const char *last)
{
- add_preferred_base_object(p->name);
- add_object_entry(p->item->sha1, p->item->type, p->name, 0);
- p->item->flags |= OBJECT_ADDED;
- free((char *)p->name);
- p->name = NULL;
+ char *name = path_name(path, last);
+
+ add_preferred_base_object(name);
+ add_object_entry(obj->sha1, obj->type, name, 0);
+ obj->flags |= OBJECT_ADDED;
+
+ /*
+ * We will have generated the hash from the name,
+ * but not saved a pointer to it - we can free it
+ */
+ free((char *)name);
}
static void show_edge(struct commit *commit)
@@ -2066,7 +2106,7 @@ static void get_object_list(int ac, const char **av)
if (prepare_revision_walk(&revs))
die("revision walk setup failed");
mark_edges_uninteresting(revs.commits, &revs, show_edge);
- traverse_commit_list(&revs, show_commit, show_object);
+ traverse_commit_list(&revs, show_commit, show_object, NULL);
if (keep_unreachable)
add_objects_in_unpacked_packs(&revs);
@@ -2085,11 +2125,14 @@ 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;
uint32_t i;
const char **rp_av;
int rp_ac_alloc = 64;
int rp_ac;
+ read_replace_refs = 0;
+
rp_av = xcalloc(rp_ac_alloc, sizeof(*rp_av));
rp_av[0] = "pack-objects";
@@ -2182,6 +2225,10 @@ int cmd_pack_objects(int argc, const char **argv, const char *prefix)
progress = 2;
continue;
}
+ if (!strcmp("--all-progress-implied", arg)) {
+ all_progress_implied = 1;
+ continue;
+ }
if (!strcmp("-q", arg)) {
progress = 0;
continue;
@@ -2247,6 +2294,10 @@ int cmd_pack_objects(int argc, const char **argv, const char *prefix)
die("bad %s", arg);
continue;
}
+ if (!strcmp(arg, "--keep-true-parents")) {
+ grafts_replace_parents = 0;
+ continue;
+ }
usage(pack_usage);
}
@@ -2281,10 +2332,8 @@ 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.");
-#ifdef THREADED_DELTA_SEARCH
- if (!delta_search_threads) /* --threads=0 means autodetect */
- delta_search_threads = online_cpus();
-#endif
+ if (progress && all_progress_implied)
+ progress = 2;
prepare_packed_git();
@@ -2296,6 +2345,7 @@ int cmd_pack_objects(int argc, const char **argv, const char *prefix)
rp_av[rp_ac] = NULL;
get_object_list(rp_ac, rp_av);
}
+ cleanup_preferred_base();
if (include_tag && nr_result)
for_each_ref(add_ref_tag, NULL);
stop_progress(&progress_state);
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-04 08:12:02 +0000