diff --git a/tree-walk.c b/tree-walk.c
index 39220582713311c692dde45d6705700995545f38..70f899957e8ce511f0f5a470e8b6927d58d1b63e 100644 (file)
--- a/tree-walk.c
+++ b/tree-walk.c
void update_tree_entry(struct tree_desc *desc)
{
- void *buf = desc->buf;
+ const void *buf = desc->buf;
unsigned long size = desc->size;
int len = strlen(buf) + 1 + 20;
if (size < len)
die("corrupt tree file");
- desc->buf = buf + len;
+ desc->buf = (char *) buf + len;
desc->size = size - len;
}
const unsigned char *tree_entry_extract(struct tree_desc *desc, const char **pathp, unsigned int *modep)
{
- void *tree = desc->buf;
+ const void *tree = desc->buf;
unsigned long size = desc->size;
int len = strlen(tree)+1;
- const unsigned char *sha1 = tree + len;
+ const unsigned char *sha1 = (unsigned char *) tree + len;
const char *path;
unsigned int mode;
@@ -78,12 +78,41 @@ const unsigned char *tree_entry_extract(struct tree_desc *desc, const char **pat
return sha1;
}
+int tree_entry(struct tree_desc *desc, struct name_entry *entry)
+{
+ const void *tree = desc->buf;
+ const char *path;
+ unsigned long len, size = desc->size;
+
+ if (!size)
+ return 0;
+
+ path = get_mode(tree, &entry->mode);
+ if (!path)
+ die("corrupt tree file");
+
+ entry->path = path;
+ len = strlen(path);
+ entry->pathlen = len;
+
+ path += len + 1;
+ entry->sha1 = (const unsigned char *) path;
+
+ path += 20;
+ len = path - (char *) tree;
+ if (len > size)
+ die("corrupt tree file");
+
+ desc->buf = path;
+ desc->size = size - len;
+ return 1;
+}
+
void traverse_trees(int n, struct tree_desc *t, const char *base, traverse_callback_t callback)
{
struct name_entry *entry = xmalloc(n*sizeof(*entry));
for (;;) {
- struct name_entry entry[3];
unsigned long mask = 0;
int i, last;
if (cmp < 0)
break;
if (entrylen == namelen) {
- memcpy(result, sha1, 20);
+ hashcpy(result, sha1);
return 0;
}
if (name[entrylen] != '/')
if (!S_ISDIR(*mode))
break;
if (++entrylen == namelen) {
- memcpy(result, sha1, 20);
+ hashcpy(result, sha1);
return 0;
}
return get_tree_entry(sha1, name + entrylen, result, mode);
@@ -170,10 +199,17 @@ int get_tree_entry(const unsigned char *tree_sha1, const char *name, unsigned ch
int retval;
void *tree;
struct tree_desc t;
+ unsigned char root[20];
- tree = read_object_with_reference(tree_sha1, tree_type, &t.size, NULL);
+ tree = read_object_with_reference(tree_sha1, tree_type, &t.size, root);
if (!tree)
return -1;
+
+ if (name[0] == '\0') {
+ hashcpy(sha1, root);
+ return 0;
+ }
+
t.buf = tree;
retval = find_tree_entry(&t, name, sha1, mode);
free(tree);