lstat_cache(): print a warning if doing ping-pong between cache types

diff --git a/builtin-clone.c b/builtin-clone.c
index f7e5a7b0a060c15432162fefc2e0ff89baf451b0..f73029e2ba285bfb20bce1760cef711f7a55fd02 100644 (file)
--- a/builtin-clone.c
+++ b/builtin-clone.c
@@ -19,6 +19,7 @@
 #include "strbuf.h"
 #include "dir.h"
 #include "pack-refs.h"
+#include "sigchain.h"
 
 /*
  * Overall FIXMEs:
@@ -288,7 +289,7 @@ static void remove_junk(void)
 static void remove_junk_on_signal(int signo)
 {
        remove_junk();
-       signal(SIGINT, SIG_DFL);
+       sigchain_pop(signo);
        raise(signo);
 }
 
@@ -441,7 +442,7 @@ int cmd_clone(int argc, const char **argv, const char *prefix)
        }
        junk_git_dir = git_dir;
        atexit(remove_junk);
-       signal(SIGINT, remove_junk_on_signal);
+       sigchain_push_common(remove_junk_on_signal);
 
        setenv(CONFIG_ENVIRONMENT, xstrdup(mkpath("%s/config", git_dir)), 1);
 
@@ -522,14 +523,23 @@ int cmd_clone(int argc, const char **argv, const char *prefix)
                                             option_upload_pack);
 
                refs = transport_get_remote_refs(transport);
-               transport_fetch_refs(transport, refs);
+               if(refs)
+                       transport_fetch_refs(transport, refs);
        }
 
-       clear_extra_refs();
+       if (refs) {
+               clear_extra_refs();
 
-       mapped_refs = write_remote_refs(refs, &refspec, reflog_msg.buf);
+               mapped_refs = write_remote_refs(refs, &refspec, reflog_msg.buf);
 
-       head_points_at = locate_head(refs, mapped_refs, &remote_head);
+               head_points_at = locate_head(refs, mapped_refs, &remote_head);
+       }
+       else {
+               warning("You appear to have cloned an empty repository.");
+               head_points_at = NULL;
+               remote_head = NULL;
+               option_no_checkout = 1;
+       }
 
        if (head_points_at) {
                /* Local default branch link */