t/test-lib.sh: add test_external and test_external_without_stderr

diff --git a/refs.c b/refs.c
index a81fb291f849d174ce22a7dc96748c2385afd683..9e8e8581ba981ca88366b614f1e8749cfe8a6ae5 100644 (file)
--- a/refs.c
+++ b/refs.c
@@ -159,6 +159,8 @@ static struct cached_refs {
 } cached_refs;
 static struct ref_list *current_ref;
 
+static struct ref_list *extra_refs;
+
 static void free_ref_list(struct ref_list *list)
 {
        struct ref_list *next;
@@ -215,6 +217,17 @@ static void read_packed_refs(FILE *f, struct cached_refs *cached_refs)
        cached_refs->packed = sort_ref_list(list);
 }
 
+void add_extra_ref(const char *name, const unsigned char *sha1, int flag)
+{
+       extra_refs = add_ref(name, sha1, flag, extra_refs, NULL);
+}
+
+void clear_extra_refs(void)
+{
+       free_ref_list(extra_refs);
+       extra_refs = NULL;
+}
+
 static struct ref_list *get_packed_refs(void)
 {
        if (!cached_refs.did_packed) {
@@ -379,7 +392,8 @@ int resolve_gitlink_ref(const char *path, const char *refname, unsigned char *re
 
 const char *resolve_ref(const char *ref, unsigned char *sha1, int reading, int *flag)
 {
-       int depth = MAXDEPTH, len;
+       int depth = MAXDEPTH;
+       ssize_t len;
        char buffer[256];
        static char ref_buffer[256];
 
@@ -546,6 +560,11 @@ static int do_for_each_ref(const char *base, each_ref_fn fn, int trim,
        struct ref_list *packed = get_packed_refs();
        struct ref_list *loose = get_loose_refs();
 
+       struct ref_list *extra;
+
+       for (extra = extra_refs; extra; extra = extra->next)
+               retval = do_one_ref(base, fn, trim, cb_data, extra);
+
        while (packed && loose) {
                struct ref_list *entry;
                int cmp = strcmp(packed->name, loose->name);