* creation etc.
*/
#include "cache.h"
+#include "config.h"
#include "string-list.h"
#include "lockfile.h"
#include "delta.h"
* SHA1, an extra slash for the first level indirection, and the
* terminating NUL.
*/
+static void read_info_alternates(const char * relative_base, int depth);
static int link_alt_odb_entry(const char *entry, const char *relative_base,
int depth, const char *normalized_objdir)
{
return end;
}
-static void link_alt_odb_entries(const char *alt, int len, int sep,
+static void link_alt_odb_entries(const char *alt, int sep,
const char *relative_base, int depth)
{
struct strbuf objdirbuf = STRBUF_INIT;
strbuf_release(&objdirbuf);
}
-void read_info_alternates(const char * relative_base, int depth)
+static void read_info_alternates(const char * relative_base, int depth)
{
- char *map;
- size_t mapsz;
- struct stat st;
char *path;
- int fd;
+ struct strbuf buf = STRBUF_INIT;
path = xstrfmt("%s/info/alternates", relative_base);
- fd = git_open(path);
- free(path);
- if (fd < 0)
- return;
- if (fstat(fd, &st) || (st.st_size == 0)) {
- close(fd);
+ if (strbuf_read_file(&buf, path, 1024) < 0) {
+ warn_on_fopen_errors(path);
+ free(path);
return;
}
- mapsz = xsize_t(st.st_size);
- map = xmmap(NULL, mapsz, PROT_READ, MAP_PRIVATE, fd, 0);
- close(fd);
-
- link_alt_odb_entries(map, mapsz, '\n', relative_base, depth);
- munmap(map, mapsz);
+ link_alt_odb_entries(buf.buf, '\n', relative_base, depth);
+ strbuf_release(&buf);
+ free(path);
}
struct alternate_object_database *alloc_alt_odb(const char *dir)
if (commit_lock_file(lock))
die_errno("unable to move new alternates file into place");
if (alt_odb_tail)
- link_alt_odb_entries(reference, strlen(reference), '\n', NULL, 0);
+ link_alt_odb_entries(reference, '\n', NULL, 0);
}
free(alts);
}
*/
prepare_alt_odb();
- link_alt_odb_entries(reference, strlen(reference), '\n', NULL, 0);
+ link_alt_odb_entries(reference, '\n', NULL, 0);
}
/*
out:
if (seen_error) {
- free(ref_git);
- ref_git = NULL;
+ FREE_AND_NULL(ref_git);
}
return ref_git;
if (!alt) alt = "";
alt_odb_tail = &alt_odb_list;
- link_alt_odb_entries(alt, strlen(alt), PATH_SEP, NULL, 0);
+ link_alt_odb_entries(alt, PATH_SEP, NULL, 0);
read_info_alternates(get_object_directory(), 0);
}
fd = open(name, flags | o_cloexec);
}
-#if defined(F_GETFL) && defined(F_SETFL) && defined(FD_CLOEXEC)
+#if defined(F_GETFD) && defined(F_SETFD) && defined(FD_CLOEXEC)
{
static int fd_cloexec = FD_CLOEXEC;
if (!o_cloexec && 0 <= fd && fd_cloexec) {
/* Opened w/o O_CLOEXEC? try with fcntl(2) to add it */
- int flags = fcntl(fd, F_GETFL);
- if (fcntl(fd, F_SETFL, flags | fd_cloexec))
+ int flags = fcntl(fd, F_GETFD);
+ if (fcntl(fd, F_SETFD, flags | fd_cloexec))
fd_cloexec = 0;
}
}
return a->p == b->p && a->base_offset == b->base_offset;
}
-static int delta_base_cache_hash_cmp(const void *va, const void *vb,
+static int delta_base_cache_hash_cmp(const void *unused_cmp_data,
+ const void *va, const void *vb,
const void *vkey)
{
const struct delta_base_cache_entry *a = va, *b = vb;
list_add_tail(&ent->lru, &delta_base_cache_lru);
if (!delta_base_cache.cmpfn)
- hashmap_init(&delta_base_cache, delta_base_cache_hash_cmp, 0);
+ 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);
}
error("bad packed object CRC for %s",
sha1_to_hex(sha1));
mark_bad_packed_object(p, sha1);
- unuse_pack(&w_curs);
- return NULL;
+ data = NULL;
+ goto out;
}
}
if (final_size)
*final_size = size;
+out:
unuse_pack(&w_curs);
if (delta_stack != small_delta_stack)
const uint32_t *level1_ofs = p->index_data;
const unsigned char *index = p->index_data;
unsigned hi, lo, stride;
- static int use_lookup = -1;
static int debug_lookup = -1;
if (debug_lookup < 0)
printf("%02x%02x%02x... lo %u hi %u nr %"PRIu32"\n",
sha1[0], sha1[1], sha1[2], lo, hi, p->num_objects);
- if (use_lookup < 0)
- use_lookup = !!getenv("GIT_USE_LOOKUP");
- if (use_lookup) {
- int pos = sha1_entry_pos(index, stride, 0,
- lo, hi, p->num_objects, sha1);
- if (pos < 0)
- return 0;
- return nth_packed_object_offset(p, pos);
- }
-
- do {
+ while (lo < hi) {
unsigned mi = (lo + hi) / 2;
int cmp = hashcmp(index + mi * stride, sha1);
hi = mi;
else
lo = mi+1;
- } while (lo < hi);
+ }
return 0;
}
} else if ((status = parse_sha1_header_extended(hdr, oi, flags)) < 0)
status = error("unable to parse %s header", sha1_to_hex(sha1));
- if (status >= 0 && oi->contentp)
+ if (status >= 0 && oi->contentp) {
*oi->contentp = unpack_sha1_rest(&stream, hdr,
*oi->sizep, sha1);
- else
+ if (!*oi->contentp) {
+ git_inflate_end(&stream);
+ status = -1;
+ }
+ } else
git_inflate_end(&stream);
munmap(map, mapsize);
int sha1_object_info_extended(const unsigned char *sha1, struct object_info *oi, unsigned flags)
{
- struct cached_object *co;
+ static struct object_info blank_oi = OBJECT_INFO_INIT;
struct pack_entry e;
int rtype;
const unsigned char *real = (flags & OBJECT_INFO_LOOKUP_REPLACE) ?
lookup_replace_object(sha1) :
sha1;
- co = find_cached_object(real);
- if (co) {
- if (oi->typep)
- *(oi->typep) = co->type;
- if (oi->sizep)
- *(oi->sizep) = co->size;
- if (oi->disk_sizep)
- *(oi->disk_sizep) = 0;
- if (oi->delta_base_sha1)
- hashclr(oi->delta_base_sha1);
- if (oi->typename)
- strbuf_addstr(oi->typename, typename(co->type));
- if (oi->contentp)
- *oi->contentp = xmemdupz(co->buf, co->size);
- oi->whence = OI_CACHED;
- return 0;
+ if (!oi)
+ oi = &blank_oi;
+
+ if (!(flags & OBJECT_INFO_SKIP_CACHED)) {
+ struct cached_object *co = find_cached_object(real);
+ if (co) {
+ if (oi->typep)
+ *(oi->typep) = co->type;
+ if (oi->sizep)
+ *(oi->sizep) = co->size;
+ if (oi->disk_sizep)
+ *(oi->disk_sizep) = 0;
+ if (oi->delta_base_sha1)
+ hashclr(oi->delta_base_sha1);
+ if (oi->typename)
+ strbuf_addstr(oi->typename, typename(co->type));
+ if (oi->contentp)
+ *oi->contentp = xmemdupz(co->buf, co->size);
+ oi->whence = OI_CACHED;
+ return 0;
+ }
}
if (!find_pack_entry(real, &e)) {
}
/* Not a loose object; someone else may have just packed it. */
- reprepare_packed_git();
- if (!find_pack_entry(real, &e))
+ if (flags & OBJECT_INFO_QUICK) {
return -1;
+ } else {
+ reprepare_packed_git();
+ if (!find_pack_entry(real, &e))
+ return -1;
+ }
}
+ if (oi == &blank_oi)
+ /*
+ * We know that the caller doesn't actually need the
+ * information below, so return early.
+ */
+ return 0;
+
rtype = packed_object_info(e.p, e.offset, oi);
if (rtype < 0) {
mark_bad_packed_object(e.p, real);
int has_sha1_file_with_flags(const unsigned char *sha1, int flags)
{
- struct pack_entry e;
-
if (!startup_info->have_repository)
return 0;
- if (find_pack_entry(sha1, &e))
- return 1;
- if (has_loose_object(sha1))
- return 1;
- if (flags & HAS_SHA1_QUICK)
- return 0;
- reprepare_packed_git();
- return find_pack_entry(sha1, &e);
+ return sha1_object_info_extended(sha1, NULL,
+ flags | OBJECT_INFO_SKIP_CACHED) >= 0;
}
int has_object_file(const struct object_id *oid)
*/
if ((type == OBJ_BLOB) && path) {
struct strbuf nbuf = STRBUF_INIT;
- if (convert_to_git(path, buf, size, &nbuf,
+ if (convert_to_git(&the_index, path, buf, size, &nbuf,
write_object ? safe_crlf : SAFE_CRLF_FALSE)) {
buf = strbuf_detach(&nbuf, &size);
re_allocated = 1;
assert(path);
assert(would_convert_to_git_filter_fd(path));
- convert_to_git_filter_fd(path, fd, &sbuf,
+ convert_to_git_filter_fd(&the_index, path, fd, &sbuf,
write_object ? safe_crlf : SAFE_CRLF_FALSE);
if (write_object)
else if (!S_ISREG(st->st_mode))
ret = index_pipe(sha1, fd, type, path, flags);
else if (st->st_size <= big_file_threshold || type != OBJ_BLOB ||
- (path && would_convert_to_git(path)))
+ (path && would_convert_to_git(&the_index, path)))
ret = index_core(sha1, fd, xsize_t(st->st_size), type, path,
flags);
else
int read_pack_header(int fd, struct pack_header *header)
{
- if (read_in_full(fd, header, sizeof(*header)) < sizeof(*header))
+ if (read_in_full(fd, header, sizeof(*header)) != sizeof(*header))
/* "eof before pack header was fully read" */
return PH_ERROR_EOF;
typename(expect));
}
-static int for_each_file_in_obj_subdir(int subdir_nr,
- struct strbuf *path,
- each_loose_object_fn obj_cb,
- each_loose_cruft_fn cruft_cb,
- each_loose_subdir_fn subdir_cb,
- void *data)
+int for_each_file_in_obj_subdir(unsigned int subdir_nr,
+ struct strbuf *path,
+ each_loose_object_fn obj_cb,
+ each_loose_cruft_fn cruft_cb,
+ each_loose_subdir_fn subdir_cb,
+ void *data)
{
- size_t baselen = path->len;
- DIR *dir = opendir(path->buf);
+ size_t origlen, baselen;
+ DIR *dir;
struct dirent *de;
int r = 0;
+ if (subdir_nr > 0xff)
+ BUG("invalid loose object subdirectory: %x", subdir_nr);
+
+ origlen = path->len;
+ strbuf_complete(path, '/');
+ strbuf_addf(path, "%02x", subdir_nr);
+ baselen = path->len;
+
+ dir = opendir(path->buf);
if (!dir) {
- if (errno == ENOENT)
- return 0;
- return error_errno("unable to open %s", path->buf);
+ if (errno != ENOENT)
+ r = error_errno("unable to open %s", path->buf);
+ strbuf_setlen(path, origlen);
+ return r;
}
while ((de = readdir(dir))) {
if (!r && subdir_cb)
r = subdir_cb(subdir_nr, path->buf, data);
+ strbuf_setlen(path, origlen);
+
return r;
}
each_loose_subdir_fn subdir_cb,
void *data)
{
- size_t baselen = path->len;
int r = 0;
int i;
for (i = 0; i < 256; i++) {
- strbuf_addf(path, "/%02x", i);
r = for_each_file_in_obj_subdir(i, path, obj_cb, cruft_cb,
subdir_cb, data);
- strbuf_setlen(path, baselen);
if (r)
break;
}