tree.c: make read_tree*() take 'struct repository *'

These functions call tree_entry_interesting() which will soon require
a 'struct index_state *' to be passed in. Instead of just changing the
function signature to take an index, update to take a repo instead
because these functions do need object database access.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

builtin/checkout.c

@@ -115,7 +115,8 @@ static int update_some(const struct object_id *oid, struct strbuf *base,
 
 static int read_tree_some(struct tree *tree, const struct pathspec *pathspec)
 {
-	read_tree_recursive(tree, "", 0, 0, pathspec, update_some, NULL);
+	read_tree_recursive(the_repository, tree, "", 0, 0,
+			    pathspec, update_some, NULL);
 
 	/* update the index with the given tree's info
 	 * for all args, expanding wildcards, and exit

builtin/log.c

@@ -641,8 +641,9 @@ int cmd_show(int argc, const char **argv, const char *prefix)
 					diff_get_color_opt(&rev.diffopt, DIFF_COMMIT),
 					name,
 					diff_get_color_opt(&rev.diffopt, DIFF_RESET));
-			read_tree_recursive((struct tree *)o, "", 0, 0, &match_all,
-					show_tree_object, rev.diffopt.file);
+			read_tree_recursive(the_repository, (struct tree *)o, "",
+					    0, 0, &match_all, show_tree_object,
+					    rev.diffopt.file);
 			rev.shown_one = 1;
 			break;
 		case OBJ_COMMIT:

builtin/ls-files.c

@@ -441,7 +441,7 @@ void overlay_tree_on_index(struct index_state *istate,
 			       PATHSPEC_PREFER_CWD, prefix, matchbuf);
 	} else
 		memset(&pathspec, 0, sizeof(pathspec));
-	if (read_tree(tree, 1, &pathspec, istate))
+	if (read_tree(the_repository, tree, 1, &pathspec, istate))
 		die("unable to read tree entries %s", tree_name);
 
 	for (i = 0; i < istate->cache_nr; i++) {

builtin/ls-tree.c

@@ -185,5 +185,6 @@ int cmd_ls_tree(int argc, const char **argv, const char *prefix)
 	tree = parse_tree_indirect(&oid);
 	if (!tree)
 		die("not a tree object");
-	return !!read_tree_recursive(tree, "", 0, 0, &pathspec, show_tree, NULL);
+	return !!read_tree_recursive(the_repository, tree, "", 0, 0,
+				     &pathspec, show_tree, NULL);
 }