X-Git-Url: https://git.tokkee.org/?a=blobdiff_plain;f=sha1_file.c;h=445a871db31673af20017d36ff22fd106f77f510;hb=eed81838f0d0e031702473e1d427d71055134edd;hp=d9da7c8f75c8f44a62661d92b6f8e5266df83a73;hpb=ee4f06c0a60d8b17efdd8f6a3332f175f6aafe0e;p=git.git

diff --git a/sha1_file.c b/sha1_file.c
index d9da7c8f7..445a871db 100644
--- a/sha1_file.c
+++ b/sha1_file.c
@@ -14,6 +14,7 @@
 #include "tag.h"
 #include "tree.h"
 #include "refs.h"
+#include "pack-revindex.h"
 
 #ifndef O_NOATIME
 #if defined(__linux__) && (defined(__i386__) || defined(__PPC__))
@@ -1367,11 +1368,15 @@ const char *packed_object_info_detail(struct packed_git *p,
 	unsigned long dummy;
 	unsigned char *next_sha1;
 	enum object_type type;
+	struct revindex_entry *revidx;
 
 	*delta_chain_length = 0;
 	curpos = obj_offset;
 	type = unpack_object_header(p, &w_curs, &curpos, size);
 
+	revidx = find_pack_revindex(p, obj_offset);
+	*store_size = revidx[1].offset - obj_offset;
+
 	for (;;) {
 		switch (type) {
 		default:
@@ -1381,14 +1386,13 @@ const char *packed_object_info_detail(struct packed_git *p,
 		case OBJ_TREE:
 		case OBJ_BLOB:
 		case OBJ_TAG:
-			*store_size = 0; /* notyet */
 			unuse_pack(&w_curs);
 			return typename(type);
 		case OBJ_OFS_DELTA:
 			obj_offset = get_delta_base(p, &w_curs, &curpos, type, obj_offset);
 			if (*delta_chain_length == 0) {
-				/* TODO: find base_sha1 as pointed by curpos */
-				hashclr(base_sha1);
+				revidx = find_pack_revindex(p, obj_offset);
+				hashcpy(base_sha1, nth_packed_object_sha1(p, revidx->nr));
 			}
 			break;
 		case OBJ_REF_DELTA:
@@ -1845,6 +1849,15 @@ static struct cached_object {
 } *cached_objects;
 static int cached_object_nr, cached_object_alloc;
 
+static struct cached_object empty_tree = {
+	/* empty tree sha1: 4b825dc642cb6eb9a060e54bf8d69288fbee4904 */
+	"\x4b\x82\x5d\xc6\x42\xcb\x6e\xb9\xa0\x60"
+	"\xe5\x4b\xf8\xd6\x92\x88\xfb\xee\x49\x04",
+	OBJ_TREE,
+	"",
+	0
+};
+
 static struct cached_object *find_cached_object(const unsigned char *sha1)
 {
 	int i;
@@ -1854,6 +1867,8 @@ static struct cached_object *find_cached_object(const unsigned char *sha1)
 		if (!hashcmp(co->sha1, sha1))
 			return co;
 	}
+	if (!hashcmp(sha1, empty_tree.sha1))
+		return &empty_tree;
 	return NULL;
 }