Provide better feedback for the untracked only case in status output

Since 98bf8a47c296f51ea9722fef4bb81dbfb70cd4bb status would claim that
git-commit could be useful even if there are no changes except untracked files.

Since wt-status is already computing all the information needed go the whole
way and actually track the (non-)emptiness of all three sections separately,
unify the code, and provide useful messages for each individual case.

Thanks to Junio and Michael Loeffler for suggestions.

Signed-off-by: Jürgen Rühle <j-r@online.de>

1 files changed, 4 insertions, 2 deletions

diff --git a/wt-status.h b/wt-status.h
index 892a86c76..cfea4ae68 100644
--- a/wt-status.h
+++ b/wt-status.h
@@ -12,11 +12,13 @@ struct wt_status {
 	int is_initial;
 	char *branch;
 	const char *reference;
-	int commitable;
 	int verbose;
 	int amend;
 	int untracked;
-	int workdir_clean;
+	/* These are computed during processing of the individual sections */
+	int commitable;
+	int workdir_dirty;
+	int workdir_untracked;
 };
 
 int git_status_config(const char *var, const char *value);