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-rw-r--r--tree-walk.c33
1 files changed, 31 insertions, 2 deletions
diff --git a/tree-walk.c b/tree-walk.c
index 3922058271..297c6972b9 100644
--- a/tree-walk.c
+++ b/tree-walk.c
@@ -37,7 +37,7 @@ static void entry_extract(struct tree_desc *t, struct name_entry *a)
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;
@@ -63,7 +63,7 @@ static const char *get_mode(const char *str, unsigned int *modep)
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;
@@ -78,6 +78,35 @@ 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, *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 = path;
+
+ path += 20;
+ len = path - 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));