return git_index_file;
}
+int safe_create_leading_directories(char *path)
+{
+ char *pos = path;
+
+ while (pos) {
+ pos = strchr(pos, '/');
+ if (!pos)
+ break;
+ *pos = 0;
+ if (mkdir(path, 0777) < 0)
+ if (errno != EEXIST) {
+ *pos = '/';
+ return -1;
+ }
+ *pos++ = '/';
+ }
+ return 0;
+}
+
int get_sha1(const char *str, unsigned char *sha1)
{
- static char pathname[PATH_MAX];
static const char *prefix[] = {
"",
"refs",
if (!get_sha1_hex(str, sha1))
return 0;
- if (!git_dir)
- setup_git_env();
for (p = prefix; *p; p++) {
- snprintf(pathname, sizeof(pathname), "%s/%s/%s",
- git_dir, *p, str);
+ char * pathname = git_path("%s/%s", *p, str);
if (!get_sha1_file(pathname, sha1))
return 0;
}
return -1;
index = idx_map;
+ *idx_map_ = idx_map;
+ *idx_size_ = idx_size;
/* check index map */
if (idx_size < 4*256 + 20 + 20)
if (idx_size != 4*256 + nr * 24 + 20 + 20)
return error("wrong index file size");
- *idx_map_ = idx_map;
- *idx_size_ = idx_size;
return 0;
}
p->next = packed_git;
packed_git = p;
}
+ closedir(dir);
}
void prepare_packed_git(void)
}
static void *map_sha1_file_internal(const unsigned char *sha1,
- unsigned long *size,
- int say_error)
+ unsigned long *size)
{
struct stat st;
void *map;
char *filename = find_sha1_file(sha1, &st);
if (!filename) {
- if (say_error)
- error("cannot map sha1 file %s", sha1_to_hex(sha1));
return NULL;
}
break;
/* Fallthrough */
case 0:
- if (say_error)
- perror(filename);
return NULL;
}
return map;
}
-void *map_sha1_file(const unsigned char *sha1, unsigned long *size)
-{
- return map_sha1_file_internal(sha1, size, 1);
-}
-
int unpack_sha1_header(z_stream *stream, void *map, unsigned long mapsize, void *buffer, unsigned long size)
{
/* Get the data stream */
return inflate(stream, 0);
}
-void *unpack_sha1_rest(z_stream *stream, void *buffer, unsigned long size)
+static void *unpack_sha1_rest(z_stream *stream, void *buffer, unsigned long size)
{
int bytes = strlen(buffer) + 1;
unsigned char *buf = xmalloc(1+size);
return offset;
}
+void packed_object_info_detail(struct pack_entry *e,
+ char *type,
+ unsigned long *size,
+ unsigned long *store_size,
+ int *delta_chain_length,
+ unsigned char *base_sha1)
+{
+ struct packed_git *p = e->p;
+ unsigned long offset, left;
+ unsigned char *pack;
+ enum object_type kind;
+
+ offset = unpack_object_header(p, e->offset, &kind, size);
+ pack = p->pack_base + offset;
+ left = p->pack_size - offset;
+ if (kind != OBJ_DELTA)
+ *delta_chain_length = 0;
+ else {
+ int chain_length = 0;
+ memcpy(base_sha1, pack, 20);
+ do {
+ struct pack_entry base_ent;
+ unsigned long junk;
+
+ find_pack_entry_one(pack, &base_ent, p);
+ offset = unpack_object_header(p, base_ent.offset,
+ &kind, &junk);
+ pack = p->pack_base + offset;
+ chain_length++;
+ } while (kind == OBJ_DELTA);
+ *delta_chain_length = chain_length;
+ }
+ switch (kind) {
+ case OBJ_COMMIT:
+ strcpy(type, "commit");
+ break;
+ case OBJ_TREE:
+ strcpy(type, "tree");
+ break;
+ case OBJ_BLOB:
+ strcpy(type, "blob");
+ break;
+ case OBJ_TAG:
+ strcpy(type, "tag");
+ break;
+ default:
+ die("corrupted pack file");
+ }
+ *store_size = 0; /* notyet */
+}
+
static int packed_object_info(struct pack_entry *entry,
char *type, unsigned long *sizep)
{
{
int st;
z_stream stream;
- char *buffer;
+ unsigned char *buffer;
buffer = xmalloc(size + 1);
buffer[size] = 0;
int find_pack_entry_one(const unsigned char *sha1,
struct pack_entry *e, struct packed_git *p)
{
- int *level1_ofs = p->index_base;
+ unsigned int *level1_ofs = p->index_base;
int hi = ntohl(level1_ofs[*sha1]);
int lo = ((*sha1 == 0x0) ? 0 : ntohl(level1_ofs[*sha1 - 1]));
void *index = p->index_base + 256;
z_stream stream;
char hdr[128];
- map = map_sha1_file_internal(sha1, &mapsize, 0);
+ map = map_sha1_file_internal(sha1, &mapsize);
if (!map) {
struct pack_entry e;
{
unsigned long mapsize;
void *map, *buf;
+ struct pack_entry e;
- map = map_sha1_file_internal(sha1, &mapsize, 0);
+ if (find_pack_entry(sha1, &e))
+ return read_packed_sha1(sha1, type, size);
+ map = map_sha1_file_internal(sha1, &mapsize);
if (map) {
buf = unpack_sha1_file(map, mapsize, type, size);
munmap(map, mapsize);
return buf;
}
- return read_packed_sha1(sha1, type, size);
+ return NULL;
}
void *read_object_with_reference(const unsigned char *sha1,
}
}
-static char *write_sha1_file_prepare(void *buf,
- unsigned long len,
- const char *type,
- unsigned char *sha1,
- unsigned char *hdr,
- int *hdrlen)
+char *write_sha1_file_prepare(void *buf,
+ unsigned long len,
+ const char *type,
+ unsigned char *sha1,
+ unsigned char *hdr,
+ int *hdrlen)
{
SHA_CTX c;
return 0;
}
+int write_sha1_to_fd(int fd, const unsigned char *sha1)
+{
+ ssize_t size;
+ unsigned long objsize;
+ int posn = 0;
+ void *buf = map_sha1_file_internal(sha1, &objsize);
+ z_stream stream;
+ if (!buf) {
+ unsigned char *unpacked;
+ unsigned long len;
+ char type[20];
+ char hdr[50];
+ int hdrlen;
+ // need to unpack and recompress it by itself
+ unpacked = read_packed_sha1(sha1, type, &len);
+
+ hdrlen = sprintf(hdr, "%s %lu", type, len) + 1;
+
+ /* Set it up */
+ memset(&stream, 0, sizeof(stream));
+ deflateInit(&stream, Z_BEST_COMPRESSION);
+ size = deflateBound(&stream, len + hdrlen);
+ buf = xmalloc(size);
+
+ /* Compress it */
+ stream.next_out = buf;
+ stream.avail_out = size;
+
+ /* First header.. */
+ stream.next_in = (void *)hdr;
+ stream.avail_in = hdrlen;
+ while (deflate(&stream, 0) == Z_OK)
+ /* nothing */;
+
+ /* Then the data itself.. */
+ stream.next_in = unpacked;
+ stream.avail_in = len;
+ while (deflate(&stream, Z_FINISH) == Z_OK)
+ /* nothing */;
+ deflateEnd(&stream);
+
+ objsize = stream.total_out;
+ }
+
+ do {
+ size = write(fd, buf + posn, objsize - posn);
+ if (size <= 0) {
+ if (!size) {
+ fprintf(stderr, "write closed");
+ } else {
+ perror("write ");
+ }
+ return -1;
+ }
+ posn += size;
+ } while (posn < objsize);
+ return 0;
+}
+
int write_sha1_from_fd(const unsigned char *sha1, int fd)
{
char *filename = sha1_file_name(sha1);
return 0;
}
+int has_sha1_pack(const unsigned char *sha1)
+{
+ struct pack_entry e;
+ return find_pack_entry(sha1, &e);
+}
+
int has_sha1_file(const unsigned char *sha1)
{
struct stat st;
struct pack_entry e;
- if (find_sha1_file(sha1, &st))
+ if (find_pack_entry(sha1, &e))
return 1;
- return find_pack_entry(sha1, &e);
+ return find_sha1_file(sha1, &st) ? 1 : 0;
}
-int index_fd(unsigned char *sha1, int fd, struct stat *st)
+int index_fd(unsigned char *sha1, int fd, struct stat *st, int write_object, const char *type)
{
unsigned long size = st->st_size;
void *buf;
int ret;
+ unsigned char hdr[50];
+ int hdrlen;
buf = "";
if (size)
if ((int)(long)buf == -1)
return -1;
- ret = write_sha1_file(buf, size, "blob", sha1);
+ if (!type)
+ type = "blob";
+ if (write_object)
+ ret = write_sha1_file(buf, size, type, sha1);
+ else {
+ write_sha1_file_prepare(buf, size, type, sha1, hdr, &hdrlen);
+ ret = 0;
+ }
if (size)
munmap(buf, size);
return ret;