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-rw-r--r--packfile.c196
1 files changed, 102 insertions, 94 deletions
diff --git a/packfile.c b/packfile.c
index 16bcb75..7e7c04e 100644
--- a/packfile.c
+++ b/packfile.c
@@ -6,7 +6,6 @@
#include "mergesort.h"
#include "packfile.h"
#include "delta.h"
-#include "list.h"
#include "streaming.h"
#include "sha1-lookup.h"
#include "commit.h"
@@ -16,14 +15,16 @@
#include "tree.h"
#include "object-store.h"
#include "midx.h"
+#include "commit-graph.h"
+#include "promisor-remote.h"
char *odb_pack_name(struct strbuf *buf,
- const unsigned char *sha1,
+ const unsigned char *hash,
const char *ext)
{
strbuf_reset(buf);
strbuf_addf(buf, "%s/pack/pack-%s.%s", get_object_directory(),
- sha1_to_hex(sha1), ext);
+ hash_to_hex(hash), ext);
return buf->buf;
}
@@ -235,7 +236,7 @@ struct packed_git *parse_pack_index(unsigned char *sha1, const char *idx_path)
struct packed_git *p = alloc_packed_git(alloc);
memcpy(p->pack_name, path, alloc); /* includes NUL */
- hashcpy(p->sha1, sha1);
+ hashcpy(p->hash, sha1);
if (check_packed_git_idx(idx_path, p)) {
free(p);
return NULL;
@@ -286,13 +287,6 @@ static int unuse_one_window(struct packed_git *current)
return 0;
}
-void release_pack_memory(size_t need)
-{
- size_t cur = pack_mapped;
- while (need >= (cur - pack_mapped) && unuse_one_window(NULL))
- ; /* nothing */
-}
-
void close_pack_windows(struct packed_git *p)
{
while (p->windows) {
@@ -309,7 +303,7 @@ void close_pack_windows(struct packed_git *p)
}
}
-static int close_pack_fd(struct packed_git *p)
+int close_pack_fd(struct packed_git *p)
{
if (p->pack_fd < 0)
return 0;
@@ -336,7 +330,7 @@ void close_pack(struct packed_git *p)
close_pack_index(p);
}
-void close_all_packs(struct raw_object_store *o)
+void close_object_store(struct raw_object_store *o)
{
struct packed_git *p;
@@ -350,6 +344,36 @@ void close_all_packs(struct raw_object_store *o)
close_midx(o->multi_pack_index);
o->multi_pack_index = NULL;
}
+
+ close_commit_graph(o);
+}
+
+void unlink_pack_path(const char *pack_name, int force_delete)
+{
+ static const char *exts[] = {".pack", ".idx", ".keep", ".bitmap", ".promisor"};
+ int i;
+ struct strbuf buf = STRBUF_INIT;
+ size_t plen;
+
+ strbuf_addstr(&buf, pack_name);
+ strip_suffix_mem(buf.buf, &buf.len, ".pack");
+ plen = buf.len;
+
+ if (!force_delete) {
+ strbuf_addstr(&buf, ".keep");
+ if (!access(buf.buf, F_OK)) {
+ strbuf_release(&buf);
+ return;
+ }
+ }
+
+ for (i = 0; i < ARRAY_SIZE(exts); i++) {
+ strbuf_setlen(&buf, plen);
+ strbuf_addstr(&buf, exts[i]);
+ unlink(buf.buf);
+ }
+
+ strbuf_release(&buf);
}
/*
@@ -466,6 +490,16 @@ static unsigned int get_max_fd_limit(void)
#endif
}
+const char *pack_basename(struct packed_git *p)
+{
+ const char *ret = strrchr(p->pack_name, '/');
+ if (ret)
+ ret = ret + 1; /* skip past slash */
+ else
+ ret = p->pack_name; /* we only have a base */
+ return ret;
+}
+
/*
* Do not call this directly as this leaks p->pack_fd on error return;
* call open_packed_git() instead.
@@ -476,13 +510,12 @@ static int open_packed_git_1(struct packed_git *p)
struct pack_header hdr;
unsigned char hash[GIT_MAX_RAWSZ];
unsigned char *idx_hash;
- long fd_flag;
ssize_t read_result;
const unsigned hashsz = the_hash_algo->rawsz;
if (!p->index_data) {
struct multi_pack_index *m;
- const char *pack_name = strrchr(p->pack_name, '/');
+ const char *pack_name = pack_basename(p);
for (m = the_repository->objects->multi_pack_index;
m; m = m->next) {
@@ -520,16 +553,6 @@ static int open_packed_git_1(struct packed_git *p)
} else if (p->pack_size != st.st_size)
return error("packfile %s size changed", p->pack_name);
- /* We leave these file descriptors open with sliding mmap;
- * there is no point keeping them open across exec(), though.
- */
- fd_flag = fcntl(p->pack_fd, F_GETFD, 0);
- if (fd_flag < 0)
- return error("cannot determine file descriptor flags");
- fd_flag |= FD_CLOEXEC;
- if (fcntl(p->pack_fd, F_SETFD, fd_flag) == -1)
- return error("cannot set FD_CLOEXEC");
-
/* Verify we recognize this pack file format. */
read_result = read_in_full(p->pack_fd, &hdr, sizeof(hdr));
if (read_result < 0)
@@ -553,9 +576,8 @@ static int open_packed_git_1(struct packed_git *p)
" while index indicates %"PRIu32" objects",
p->pack_name, ntohl(hdr.hdr_entries),
p->num_objects);
- if (lseek(p->pack_fd, p->pack_size - hashsz, SEEK_SET) == -1)
- return error("end of packfile %s is unavailable", p->pack_name);
- read_result = read_in_full(p->pack_fd, hash, hashsz);
+ read_result = pread_in_full(p->pack_fd, hash, hashsz,
+ p->pack_size - hashsz);
if (read_result < 0)
return error_errno("error reading from %s", p->pack_name);
if (read_result != hashsz)
@@ -630,7 +652,7 @@ unsigned char *use_pack(struct packed_git *p,
while (packed_git_limit < pack_mapped
&& unuse_one_window(p))
; /* nothing */
- win->base = xmmap(NULL, win->len,
+ win->base = xmmap_gently(NULL, win->len,
PROT_READ, MAP_PRIVATE,
p->pack_fd, win->offset);
if (win->base == MAP_FAILED)
@@ -669,23 +691,12 @@ void unuse_pack(struct pack_window **w_cursor)
}
}
-static void try_to_free_pack_memory(size_t size)
-{
- release_pack_memory(size);
-}
-
struct packed_git *add_packed_git(const char *path, size_t path_len, int local)
{
- static int have_set_try_to_free_routine;
struct stat st;
size_t alloc;
struct packed_git *p;
- if (!have_set_try_to_free_routine) {
- have_set_try_to_free_routine = 1;
- set_try_to_free_routine(try_to_free_pack_memory);
- }
-
/*
* Make sure a corresponding .pack file exists and that
* the index looks sane.
@@ -722,8 +733,8 @@ struct packed_git *add_packed_git(const char *path, size_t path_len, int local)
p->pack_local = local;
p->mtime = st.st_mtime;
if (path_len < the_hash_algo->hexsz ||
- get_sha1_hex(path + path_len - the_hash_algo->hexsz, p->sha1))
- hashclr(p->sha1);
+ get_sha1_hex(path + path_len - the_hash_algo->hexsz, p->hash))
+ hashclr(p->hash);
return p;
}
@@ -734,6 +745,9 @@ void install_packed_git(struct repository *r, struct packed_git *pack)
pack->next = r->objects->packed_git;
r->objects->packed_git = pack;
+
+ hashmap_entry_init(&pack->packmap_ent, strhash(pack->pack_name));
+ hashmap_add(&r->objects->pack_map, &pack->packmap_ent);
}
void (*report_garbage)(unsigned seen_bits, const char *path);
@@ -833,20 +847,18 @@ static void prepare_pack(const char *full_name, size_t full_name_len,
if (strip_suffix_mem(full_name, &base_len, ".idx") &&
!(data->m && midx_contains_pack(data->m, file_name))) {
- /* Don't reopen a pack we already have. */
- for (p = data->r->objects->packed_git; p; p = p->next) {
- size_t len;
- if (strip_suffix(p->pack_name, ".pack", &len) &&
- len == base_len &&
- !memcmp(p->pack_name, full_name, len))
- break;
- }
+ struct hashmap_entry hent;
+ char *pack_name = xstrfmt("%.*s.pack", (int)base_len, full_name);
+ unsigned int hash = strhash(pack_name);
+ hashmap_entry_init(&hent, hash);
- if (!p) {
+ /* Don't reopen a pack we already have. */
+ if (!hashmap_get(&data->r->objects->pack_map, &hent, pack_name)) {
p = add_packed_git(full_name, full_name_len, data->local);
if (p)
install_packed_git(data->r, p);
}
+ free(pack_name);
}
if (!report_garbage)
@@ -893,25 +905,25 @@ static void prepare_packed_git(struct repository *r);
* all unreachable objects about to be pruned, in which case they're not really
* interesting as a measure of repo size in the first place.
*/
-unsigned long approximate_object_count(void)
+unsigned long repo_approximate_object_count(struct repository *r)
{
- if (!the_repository->objects->approximate_object_count_valid) {
+ if (!r->objects->approximate_object_count_valid) {
unsigned long count;
struct multi_pack_index *m;
struct packed_git *p;
- prepare_packed_git(the_repository);
+ prepare_packed_git(r);
count = 0;
- for (m = get_multi_pack_index(the_repository); m; m = m->next)
+ for (m = get_multi_pack_index(r); m; m = m->next)
count += m->num_objects;
- for (p = the_repository->objects->packed_git; p; p = p->next) {
+ for (p = r->objects->packed_git; p; p = p->next) {
if (open_pack_index(p))
continue;
count += p->num_objects;
}
- the_repository->objects->approximate_object_count = count;
+ r->objects->approximate_object_count = count;
}
- return the_repository->objects->approximate_object_count;
+ return r->objects->approximate_object_count;
}
static void *get_next_packed_git(const void *p)
@@ -984,8 +996,6 @@ static void prepare_packed_git(struct repository *r)
}
rearrange_packed_git(r);
- r->objects->all_packs = NULL;
-
prepare_packed_git_mru(r);
r->objects->packed_git_initialized = 1;
}
@@ -1016,26 +1026,16 @@ struct multi_pack_index *get_multi_pack_index(struct repository *r)
struct packed_git *get_all_packs(struct repository *r)
{
- prepare_packed_git(r);
-
- if (!r->objects->all_packs) {
- struct packed_git *p = r->objects->packed_git;
- struct multi_pack_index *m;
-
- for (m = r->objects->multi_pack_index; m; m = m->next) {
- uint32_t i;
- for (i = 0; i < m->num_packs; i++) {
- if (!prepare_midx_pack(m, i)) {
- m->packs[i]->next = p;
- p = m->packs[i];
- }
- }
- }
+ struct multi_pack_index *m;
- r->objects->all_packs = p;
+ prepare_packed_git(r);
+ for (m = r->objects->multi_pack_index; m; m = m->next) {
+ uint32_t i;
+ for (i = 0; i < m->num_packs; i++)
+ prepare_midx_pack(r, m, i);
}
- return r->objects->all_packs;
+ return r->objects->packed_git;
}
struct list_head *get_packed_git_mru(struct repository *r)
@@ -1271,7 +1271,7 @@ static enum object_type packed_to_object_type(struct repository *r,
if (poi_stack_nr >= poi_stack_alloc && poi_stack == small_poi_stack) {
poi_stack_alloc = alloc_nr(poi_stack_nr);
ALLOC_ARRAY(poi_stack, poi_stack_alloc);
- memcpy(poi_stack, small_poi_stack, sizeof(off_t)*poi_stack_nr);
+ COPY_ARRAY(poi_stack, small_poi_stack, poi_stack_nr);
} else {
ALLOC_GROW(poi_stack, poi_stack_nr+1, poi_stack_alloc);
}
@@ -1332,7 +1332,7 @@ struct delta_base_cache_key {
};
struct delta_base_cache_entry {
- struct hashmap hash;
+ struct hashmap_entry ent;
struct delta_base_cache_key key;
struct list_head lru;
void *data;
@@ -1352,7 +1352,7 @@ static unsigned int pack_entry_hash(struct packed_git *p, off_t base_offset)
static struct delta_base_cache_entry *
get_delta_base_cache_entry(struct packed_git *p, off_t base_offset)
{
- struct hashmap_entry entry;
+ struct hashmap_entry entry, *e;
struct delta_base_cache_key key;
if (!delta_base_cache.cmpfn)
@@ -1361,7 +1361,8 @@ get_delta_base_cache_entry(struct packed_git *p, off_t base_offset)
hashmap_entry_init(&entry, pack_entry_hash(p, base_offset));
key.p = p;
key.base_offset = base_offset;
- return hashmap_get(&delta_base_cache, &entry, &key);
+ e = hashmap_get(&delta_base_cache, &entry, &key);
+ return e ? container_of(e, struct delta_base_cache_entry, ent) : NULL;
}
static int delta_base_cache_key_eq(const struct delta_base_cache_key *a,
@@ -1371,11 +1372,16 @@ static int delta_base_cache_key_eq(const struct delta_base_cache_key *a,
}
static int delta_base_cache_hash_cmp(const void *unused_cmp_data,
- const void *va, const void *vb,
+ const struct hashmap_entry *va,
+ const struct hashmap_entry *vb,
const void *vkey)
{
- const struct delta_base_cache_entry *a = va, *b = vb;
+ const struct delta_base_cache_entry *a, *b;
const struct delta_base_cache_key *key = vkey;
+
+ a = container_of(va, const struct delta_base_cache_entry, ent);
+ b = container_of(vb, const struct delta_base_cache_entry, ent);
+
if (key)
return !delta_base_cache_key_eq(&a->key, key);
else
@@ -1394,7 +1400,7 @@ static int in_delta_base_cache(struct packed_git *p, off_t base_offset)
*/
static void detach_delta_base_cache_entry(struct delta_base_cache_entry *ent)
{
- hashmap_remove(&delta_base_cache, ent, &ent->key);
+ hashmap_remove(&delta_base_cache, &ent->ent, &ent->key);
list_del(&ent->lru);
delta_base_cached -= ent->size;
free(ent);
@@ -1458,8 +1464,8 @@ static void add_delta_base_cache(struct packed_git *p, off_t base_offset,
if (!delta_base_cache.cmpfn)
hashmap_init(&delta_base_cache, delta_base_cache_hash_cmp, NULL, 0);
- hashmap_entry_init(ent, pack_entry_hash(p, base_offset));
- hashmap_add(&delta_base_cache, ent);
+ hashmap_entry_init(&ent->ent, pack_entry_hash(p, base_offset));
+ hashmap_add(&delta_base_cache, &ent->ent);
}
int packed_object_info(struct repository *r, struct packed_git *p,
@@ -1681,8 +1687,8 @@ void *unpack_entry(struct repository *r, struct packed_git *p, off_t obj_offset,
&& delta_stack == small_delta_stack) {
delta_stack_alloc = alloc_nr(delta_stack_nr);
ALLOC_ARRAY(delta_stack, delta_stack_alloc);
- memcpy(delta_stack, small_delta_stack,
- sizeof(*delta_stack)*delta_stack_nr);
+ COPY_ARRAY(delta_stack, small_delta_stack,
+ delta_stack_nr);
} else {
ALLOC_GROW(delta_stack, delta_stack_nr+1, delta_stack_alloc);
}
@@ -1988,13 +1994,13 @@ int find_pack_entry(struct repository *r, const struct object_id *oid, struct pa
return 0;
for (m = r->objects->multi_pack_index; m; m = m->next) {
- if (fill_midx_entry(oid, e, m))
+ if (fill_midx_entry(r, oid, e, m))
return 1;
}
list_for_each(pos, &r->objects->packed_git_mru) {
struct packed_git *p = list_entry(pos, struct packed_git, mru);
- if (fill_pack_entry(oid, e, p)) {
+ if (!p->multi_pack_index && fill_pack_entry(oid, e, p)) {
list_move(&p->mru, &r->objects->packed_git_mru);
return 1;
}
@@ -2023,8 +2029,10 @@ int for_each_object_in_pack(struct packed_git *p,
uint32_t i;
int r = 0;
- if (flags & FOR_EACH_OBJECT_PACK_ORDER)
- load_pack_revindex(p);
+ if (flags & FOR_EACH_OBJECT_PACK_ORDER) {
+ if (load_pack_revindex(p))
+ return -1;
+ }
for (i = 0; i < p->num_objects; i++) {
uint32_t pos;
@@ -2108,7 +2116,7 @@ static int add_promisor_object(const struct object_id *oid,
oidset_insert(set, &parents->item->object.oid);
} else if (obj->type == OBJ_TAG) {
struct tag *tag = (struct tag *) obj;
- oidset_insert(set, &tag->tagged->oid);
+ oidset_insert(set, get_tagged_oid(tag));
}
return 0;
}
@@ -2119,7 +2127,7 @@ int is_promisor_object(const struct object_id *oid)
static int promisor_objects_prepared;
if (!promisor_objects_prepared) {
- if (repository_format_partial_clone) {
+ if (has_promisor_remote()) {
for_each_packed_object(add_promisor_object,
&promisor_objects,
FOR_EACH_OBJECT_PROMISOR_ONLY);
generated by cgit v0.10.2-6-g49f6 at 2024-04-25 16:16:01 (GMT)