Add ostree_ensure_repo_writable()

Commands that need to write files within the repo directory can call
this early to ensure the directory is writable for the current user.
If not, it fails with a helpful "You need to be root to perform this
command" message.

1 files changed, 2 insertions, 0 deletions

diff --git a/src/ostree/ot-main.h b/src/ostree/ot-main.h
index 5f31b240..659727f3 100644
--- a/src/ostree/ot-main.h
+++ b/src/ostree/ot-main.h
@@ -51,3 +51,5 @@ gboolean ostree_admin_option_context_parse (GOptionContext *context,
                                             int *argc, char ***argv,
                                             OstreeSysroot **out_sysroot,
                                             GCancellable *cancellable, GError **error);
+
+gboolean ostree_ensure_repo_writable (OstreeRepo *repo, GError **error);