symbolic ref: refuse non-ref targets in HEAD

diff --git a/git.c b/git.c
index 905acc2f2cd591bd3bd65008f7a72a5642a21f35..940a498962ceb06a1dba85547d61ad62bb81a499 100644 (file)
--- a/git.c
+++ b/git.c
@@ -162,6 +162,8 @@ static int handle_alias(int *argcp, const char ***argv)
                            alias_string + 1, alias_command);
                }
                count = split_cmdline(alias_string, &new_argv);
+               if (count < 0)
+                       die("Bad alias.%s string", alias_command);
                option_count = handle_options(&new_argv, &count, &envchanged);
                if (envchanged)
                        die("alias '%s' changes environment variables\n"
@@ -193,8 +195,8 @@ static int handle_alias(int *argcp, const char ***argv)
                ret = 1;
        }
 
-       if (subdir)
-               chdir(subdir);
+       if (subdir && chdir(subdir))
+               die("Cannot change to %s: %s", subdir, strerror(errno));
 
        errno = saved_errno;
 
@@ -264,6 +266,7 @@ static void handle_internal_command(int argc, const char **argv)
        const char *cmd = argv[0];
        static struct cmd_struct commands[] = {
                { "add", cmd_add, RUN_SETUP | NEED_WORK_TREE },
+               { "stage", cmd_add, RUN_SETUP | NEED_WORK_TREE },
                { "annotate", cmd_annotate, RUN_SETUP },
                { "apply", cmd_apply },
                { "archive", cmd_archive },
@@ -328,6 +331,7 @@ static void handle_internal_command(int argc, const char **argv)
                { "prune-packed", cmd_prune_packed, RUN_SETUP },
                { "push", cmd_push, RUN_SETUP },
                { "read-tree", cmd_read_tree, RUN_SETUP },
+               { "receive-pack", cmd_receive_pack },
                { "reflog", cmd_reflog, RUN_SETUP },
                { "remote", cmd_remote, RUN_SETUP },
                { "repo-config", cmd_config },
@@ -386,10 +390,9 @@ static void handle_internal_command(int argc, const char **argv)
 
 static void execv_dashed_external(const char **argv)
 {
-       struct strbuf cmd;
+       struct strbuf cmd = STRBUF_INIT;
        const char *tmp;
 
-       strbuf_init(&cmd, 0);
        strbuf_addf(&cmd, "git-%s", argv[0]);
 
        /*