core: Make commit always operate on directory contents, not file list

This simplifies things significantly, at some cost in flexibility.
We'll later add the ability to e.g. filter out files by regular
expression.

src/libostree/ostree-repo.h

@@ -110,17 +110,16 @@ gboolean      ostree_repo_load_variant_checked (OstreeRepo  *self,
                                                 GVariant     **out_variant,
                                                 GError       **error);
 
-gboolean      ostree_repo_commit_from_filelist_fd (OstreeRepo   *self,
-                                                   const char   *branch,
-                                                   const char   *parent,
-                                                   const char   *subject,
-                                                   const char   *body,
-                                                   GVariant     *metadata,
-                                                   const char   *base,
-                                                   int           fd,
-                                                   char          separator,
-                                                   GChecksum   **out_commit,
-                                                   GError      **error);
+gboolean      ostree_repo_commit (OstreeRepo   *self,
+                                  const char   *branch,
+                                  const char   *parent,
+                                  const char   *subject,
+                                  const char   *body,
+                                  GVariant     *metadata,
+                                  GFile        *base,
+                                  GChecksum   **out_commit,
+                                  GCancellable *cancellable,
+                                  GError      **error);
 
 gboolean      ostree_repo_checkout (OstreeRepo *self,
                                     const char   *ref,