show-ref: make --head always show the HEAD ref

diff --git a/upload-pack.c b/upload-pack.c
index 3a26a7bc0d2865d53799ed31b754b33b0b10f118..30146a04f7a271ffaa033c0c6567ad1036f4bc49 100644 (file)
--- a/upload-pack.c
+++ b/upload-pack.c
@@ -12,6 +12,7 @@
 #include "run-command.h"
 #include "sigchain.h"
 #include "version.h"
+#include "string-list.h"
 
 static const char upload_pack_usage[] = "git upload-pack [--strict] [--timeout=<n>] <dir>";
 
@@ -669,10 +670,17 @@ static void receive_needs(void)
        if (depth == 0 && shallows.nr == 0)
                return;
        if (depth > 0) {
-               struct commit_list *result, *backup;
+               struct commit_list *result = NULL, *backup = NULL;
                int i;
-               backup = result = get_shallow_commits(&want_obj, depth,
-                       SHALLOW, NOT_SHALLOW);
+               if (depth == INFINITE_DEPTH)
+                       for (i = 0; i < shallows.nr; i++) {
+                               struct object *object = shallows.objects[i].item;
+                               object->flags |= NOT_SHALLOW;
+                       }
+               else
+                       backup = result =
+                               get_shallow_commits(&want_obj, depth,
+                                                   SHALLOW, NOT_SHALLOW);
                while (result) {
                        struct object *object = &result->item->object;
                        if (!(object->flags & (CLIENT_SHALLOW|NOT_SHALLOW))) {
@@ -719,9 +727,13 @@ static void receive_needs(void)
        free(shallows.objects);
 }
 
+/* return non-zero if the ref is hidden, otherwise 0 */
 static int mark_our_ref(const char *refname, const unsigned char *sha1, int flag, void *cb_data)
 {
        struct object *o = lookup_unknown_object(sha1);
+
+       if (ref_is_hidden(refname))
+               return 1;
        if (!o)
                die("git upload-pack: cannot find object %s:", sha1_to_hex(sha1));
        o->flags |= OUR_REF;
@@ -736,7 +748,8 @@ static int send_ref(const char *refname, const unsigned char *sha1, int flag, vo
        const char *refname_nons = strip_namespace(refname);
        unsigned char peeled[20];
 
-       mark_our_ref(refname, sha1, flag, cb_data);
+       if (mark_our_ref(refname, sha1, flag, cb_data))
+               return 0;
 
        if (capabilities)
                packet_write(1, "%s %s%c%s%s agent=%s\n",
@@ -773,6 +786,11 @@ static void upload_pack(void)
        }
 }
 
+static int upload_pack_config(const char *var, const char *value, void *unused)
+{
+       return parse_hide_refs_config(var, value, "uploadpack");
+}
+
 int main(int argc, char **argv)
 {
        char *dir;
@@ -824,6 +842,7 @@ int main(int argc, char **argv)
                die("'%s' does not appear to be a git repository", dir);
        if (is_repository_shallow())
                die("attempt to fetch/clone from a shallow repository");
+       git_config(upload_pack_config, NULL);
        if (getenv("GIT_DEBUG_SEND_PACK"))
                debug_fd = atoi(getenv("GIT_DEBUG_SEND_PACK"));
        upload_pack();