resolve_ref(): expose REF_ISBROKEN flag

Instead of keeping this as an internal API, let the callers find
out the reason why resolve_ref() returned NULL is not because there
was no such file in $GIT_DIR but because a file was corrupt.

Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/refs.c b/refs.c
index e3692bd3d8cec6a03721bbda91466bfca34b8783..30e08482a076c3a878588f93b7be680e891fbe12 100644 (file)
--- a/refs.c
+++ b/refs.c
@@ -4,9 +4,8 @@
 #include "tag.h"
 #include "dir.h"
 
-/* ISSYMREF=01 and ISPACKED=02 are public interfaces */
-#define REF_KNOWS_PEELED 04
-#define REF_BROKEN 010
+/* ISSYMREF=0x01, ISPACKED=0x02 and ISBROKEN=0x04 are public interfaces */
+#define REF_KNOWS_PEELED 0x10
 
 struct ref_list {
        struct ref_list *next;
@@ -309,12 +308,12 @@ static struct ref_list *get_ref_dir(const char *submodule, const char *base,
                                flag = 0;
                                if (resolve_gitlink_ref(submodule, ref, sha1) < 0) {
                                        hashclr(sha1);
-                                       flag |= REF_BROKEN;
+                                       flag |= REF_ISBROKEN;
                                }
                        } else
                                if (!resolve_ref(ref, sha1, 1, &flag)) {
                                        hashclr(sha1);
-                                       flag |= REF_BROKEN;
+                                       flag |= REF_ISBROKEN;
                                }
                        list = add_ref(ref, sha1, flag, list, NULL);
                }
@@ -613,8 +612,8 @@ static int do_one_ref(const char *base, each_ref_fn fn, int trim,
                return 0;
 
        if (!(flags & DO_FOR_EACH_INCLUDE_BROKEN)) {
-               if (entry->flag & REF_BROKEN)
-                       return 0; /* ignore dangling symref */
+               if (entry->flag & REF_ISBROKEN)
+                       return 0; /* ignore broken refs e.g. dangling symref */
                if (!has_sha1_file(entry->sha1)) {
                        error("%s does not point to a valid object!", entry->name);
                        return 0;

diff --git a/refs.h b/refs.h
index d5ac133336dc0da45cd916207d12a5e0e4237ae3..e4578856d7c2425ac26df025e1027198f9cb63a5 100644 (file)
--- a/refs.h
+++ b/refs.h
@@ -10,8 +10,9 @@ struct ref_lock {
        int force_write;
 };
 
-#define REF_ISSYMREF 01
-#define REF_ISPACKED 02
+#define REF_ISSYMREF 0x01
+#define REF_ISPACKED 0x02
+#define REF_ISBROKEN 0x04
 
 /*
  * Calls the specified function for each ref file until it returns nonzero,