Merge branch 'cb/maint-orphan-merge-noclobber'

[thirdparty/git.git] / builtin / merge.c

diff --git a/builtin/merge.c b/builtin/merge.c
index 9ec13f14bdcc3996fe18ed6fdf761ec07e627792..c24a7be020d10540581b41c21a2ecf83df5563d9 100644 (file)
--- a/builtin/merge.c
+++ b/builtin/merge.c
@@ -234,6 +234,24 @@ static void save_state(void)
                die("not a valid object: %s", buffer.buf);
 }
 
+static void read_empty(unsigned const char *sha1, int verbose)
+{
+       int i = 0;
+       const char *args[7];
+
+       args[i++] = "read-tree";
+       if (verbose)
+               args[i++] = "-v";
+       args[i++] = "-m";
+       args[i++] = "-u";
+       args[i++] = EMPTY_TREE_SHA1_HEX;
+       args[i++] = sha1_to_hex(sha1);
+       args[i] = NULL;
+
+       if (run_command_v_opt(args, RUN_GIT_CMD))
+               die("read-tree failed");
+}
+
 static void reset_hard(unsigned const char *sha1, int verbose)
 {
        int i = 0;
@@ -985,7 +1003,7 @@ int cmd_merge(int argc, const char **argv, const char *prefix)
                        die("%s - not something we can merge", argv[0]);
                update_ref("initial pull", "HEAD", remote_head->sha1, NULL, 0,
                                DIE_ON_ERR);
-               reset_hard(remote_head->sha1, 0);
+               read_empty(remote_head->sha1, 0);
                return 0;
        } else {
                struct strbuf merge_names = STRBUF_INIT;