get_tree_entry(): make it available from tree-walk

Signed-off-by: Junio C Hamano <junkio@cox.net>

sha1_name.c

@@ -450,58 +450,6 @@ static int get_sha1_1(const char *name, int len, unsigned char *sha1)
 	return get_short_sha1(name, len, sha1, 0);
 }
 
-static int get_tree_entry(const unsigned char *, const char *, unsigned char *, unsigned *);
-
-static int find_tree_entry(struct tree_desc *t, const char *name, unsigned char *result, unsigned *mode)
-{
-	int namelen = strlen(name);
-	while (t->size) {
-		const char *entry;
-		const unsigned char *sha1;
-		int entrylen, cmp;
-
-		sha1 = tree_entry_extract(t, &entry, mode);
-		update_tree_entry(t);
-		entrylen = strlen(entry);
-		if (entrylen > namelen)
-			continue;
-		cmp = memcmp(name, entry, entrylen);
-		if (cmp > 0)
-			continue;
-		if (cmp < 0)
-			break;
-		if (entrylen == namelen) {
-			memcpy(result, sha1, 20);
-			return 0;
-		}
-		if (name[entrylen] != '/')
-			continue;
-		if (!S_ISDIR(*mode))
-			break;
-		if (++entrylen == namelen) {
-			memcpy(result, sha1, 20);
-			return 0;
-		}
-		return get_tree_entry(sha1, name + entrylen, result, mode);
-	}
-	return -1;
-}
-
-static int get_tree_entry(const unsigned char *tree_sha1, const char *name, unsigned char *sha1, unsigned *mode)
-{
-	int retval;
-	void *tree;
-	struct tree_desc t;
-
-	tree = read_object_with_reference(tree_sha1, tree_type, &t.size, NULL);
-	if (!tree)
-		return -1;
-	t.buf = tree;
-	retval = find_tree_entry(&t, name, sha1, mode);
-	free(tree);
-	return retval;
-}
-
 /*
  * This is like "get_sha1_basic()", except it allows "sha1 expressions",
  * notably "xyz^" for "parent of xyz"

tree-walk.c

@@ -115,3 +115,53 @@ void traverse_trees(int n, struct tree_desc *t, const char *base, traverse_callb
 	free(entry);
 }
 
+static int find_tree_entry(struct tree_desc *t, const char *name, unsigned char *result, unsigned *mode)
+{
+	int namelen = strlen(name);
+	while (t->size) {
+		const char *entry;
+		const unsigned char *sha1;
+		int entrylen, cmp;
+
+		sha1 = tree_entry_extract(t, &entry, mode);
+		update_tree_entry(t);
+		entrylen = strlen(entry);
+		if (entrylen > namelen)
+			continue;
+		cmp = memcmp(name, entry, entrylen);
+		if (cmp > 0)
+			continue;
+		if (cmp < 0)
+			break;
+		if (entrylen == namelen) {
+			memcpy(result, sha1, 20);
+			return 0;
+		}
+		if (name[entrylen] != '/')
+			continue;
+		if (!S_ISDIR(*mode))
+			break;
+		if (++entrylen == namelen) {
+			memcpy(result, sha1, 20);
+			return 0;
+		}
+		return get_tree_entry(sha1, name + entrylen, result, mode);
+	}
+	return -1;
+}
+
+int get_tree_entry(const unsigned char *tree_sha1, const char *name, unsigned char *sha1, unsigned *mode)
+{
+	int retval;
+	void *tree;
+	struct tree_desc t;
+
+	tree = read_object_with_reference(tree_sha1, tree_type, &t.size, NULL);
+	if (!tree)
+		return -1;
+	t.buf = tree;
+	retval = find_tree_entry(&t, name, sha1, mode);
+	free(tree);
+	return retval;
+}
+

tree-walk.h

@@ -22,4 +22,6 @@ typedef void (*traverse_callback_t)(int n, unsigned long mask, struct name_entry
 
 void traverse_trees(int n, struct tree_desc *t, const char *base, traverse_callback_t callback);
 
+int get_tree_entry(const unsigned char *, const char *, unsigned char *, unsigned *);
+
 #endif