Add corner case tests for diff-index and diff-files

diff --git a/builtin-checkout.c b/builtin-checkout.c
index b0cd78856418319ed46b2e0cf372deffc050bb80..7deb504837d252dd43fa9746c5d12342e93a5923 100644 (file)
--- a/builtin-checkout.c
+++ b/builtin-checkout.c
@@ -152,6 +152,7 @@ static int reset_to_new(struct tree *tree, int quiet)
 {
        struct unpack_trees_options opts;
        struct tree_desc tree_desc;
+
        memset(&opts, 0, sizeof(opts));
        opts.head_idx = -1;
        opts.update = 1;
@@ -159,6 +160,8 @@ static int reset_to_new(struct tree *tree, int quiet)
        opts.merge = 1;
        opts.fn = oneway_merge;
        opts.verbose_update = !quiet;
+       opts.src_index = &the_index;
+       opts.dst_index = &the_index;
        parse_tree(tree);
        init_tree_desc(&tree_desc, tree->buffer, tree->size);
        if (unpack_trees(1, &tree_desc, &opts))
@@ -170,6 +173,7 @@ static void reset_clean_to_new(struct tree *tree, int quiet)
 {
        struct unpack_trees_options opts;
        struct tree_desc tree_desc;
+
        memset(&opts, 0, sizeof(opts));
        opts.head_idx = -1;
        opts.skip_unmerged = 1;
@@ -177,6 +181,8 @@ static void reset_clean_to_new(struct tree *tree, int quiet)
        opts.merge = 1;
        opts.fn = oneway_merge;
        opts.verbose_update = !quiet;
+       opts.src_index = &the_index;
+       opts.dst_index = &the_index;
        parse_tree(tree);
        init_tree_desc(&tree_desc, tree->buffer, tree->size);
        if (unpack_trees(1, &tree_desc, &opts))
@@ -224,8 +230,11 @@ static int merge_working_tree(struct checkout_opts *opts,
                struct tree_desc trees[2];
                struct tree *tree;
                struct unpack_trees_options topts;
+
                memset(&topts, 0, sizeof(topts));
                topts.head_idx = -1;
+               topts.src_index = &the_index;
+               topts.dst_index = &the_index;
 
                refresh_cache(REFRESH_QUIET);
 
@@ -484,11 +493,6 @@ static int switch_branches(struct checkout_opts *opts, struct branch_info *new)
        return post_checkout_hook(old.commit, new->commit, 1);
 }
 
-static int git_checkout_config(const char *var, const char *value)
-{
-       return git_default_config(var, value);
-}
-
 int cmd_checkout(int argc, const char **argv, const char *prefix)
 {
        struct checkout_opts opts;
@@ -510,7 +514,7 @@ int cmd_checkout(int argc, const char **argv, const char *prefix)
        memset(&opts, 0, sizeof(opts));
        memset(&new, 0, sizeof(new));
 
-       git_config(git_checkout_config);
+       git_config(git_default_config);
 
        opts.track = git_branch_track;