[ostree] repo: When adding detached metadata, ensure the objdir exists

[Colin Walters <walters src gnome org>]

commit 10cf4ccabcd4eb35812a2f781d9eb2aba2506030
Author: Colin Walters <walters verbum org>
Date:   Thu Sep 26 13:59:08 2013 -0400

    repo: When adding detached metadata, ensure the objdir exists
    
    We may be creating the commitmeta file before the commit, so we need
    to call mkdir(<first two checksum characters>) here too.

 src/libostree/ostree-repo-commit.c |   10 ++++++++--
 1 files changed, 8 insertions(+), 2 deletions(-)
---
diff --git a/src/libostree/ostree-repo-commit.c b/src/libostree/ostree-repo-commit.c
index a2bd263..fe44956 100644
--- a/src/libostree/ostree-repo-commit.c
+++ b/src/libostree/ostree-repo-commit.c
@@ -1256,8 +1256,10 @@ GFile *
 _ostree_repo_get_commit_metadata_loose_path (OstreeRepo        *self,
                                              const char        *checksum)
 {
-  gs_free char *commit_path = ostree_get_relative_object_path (checksum, OSTREE_OBJECT_TYPE_COMMIT, FALSE);
-  return ot_gfile_resolve_path_printf (self->repodir, "%smeta", commit_path);
+  char buf[_OSTREE_LOOSE_PATH_MAX];
+  _ostree_loose_path_with_suffix (buf, checksum, OSTREE_OBJECT_TYPE_COMMIT, self->mode,
+                                  "meta");
+  return g_file_resolve_relative_path (self->objects_dir, buf);
 }
 
 /**
@@ -1328,6 +1330,10 @@ ostree_repo_write_commit_detached_metadata (OstreeRepo      *self,
   gs_unref_object GFile *metadata_path =
     _ostree_repo_get_commit_metadata_loose_path (self, checksum);
 
+  if (!_ostree_repo_ensure_loose_objdir_at (self->objects_dir_fd, checksum,
+                                            cancellable, error))
+    goto out;
+
   if (!g_file_replace_contents (metadata_path,
                                 g_variant_get_data (metadata),
                                 g_variant_get_size (metadata),