run-command: terrible hack for loading config

It's not safe to look at config before we've done
setup_git_directory(), as we may pollute the results of a
later call. This is a hack because:

  1. we just silently disable this feature in this case (!)

  2. is_bare_repository_cfg is probably not the best way to
     know whether we've done setup or not.

Signed-off-by: Jeff King <peff@peff.net>

Author: peff

git.c

@@ -17,6 +17,7 @@
 #include "shallow.h"
 #include "trace.h"
 #include "trace2.h"
+#include "wrapper.h"
 
 #define RUN_SETUP		(1<<0)
 #define RUN_SETUP_GENTLY	(1<<1)

run-command.c

@@ -681,7 +681,7 @@ int start_command(struct child_process *cmd)
 	int failed_errno;
 	const char *str;
 
-	if (cmd->git_cmd)
+	if (cmd->git_cmd && is_bare_repository_cfg >= 0)
 		trace_config_for(the_repository, cmd->args.v[0], &cmd->env);
 
 	/*