[ostree] core: A few more error-prefixings

[Colin Walters <walters src gnome org>]

commit ad26c7a80b1c470021f666d23c7476bcb60c6efa
Author: Colin Walters <walters verbum org>
Date:   Sat Oct 13 18:01:19 2012 -0400

    core: A few more error-prefixings

 src/libostree/ostree-repo.c |   12 ++++++++++--
 1 files changed, 10 insertions(+), 2 deletions(-)
---
diff --git a/src/libostree/ostree-repo.c b/src/libostree/ostree-repo.c
index 6d48025..440acbe 100644
--- a/src/libostree/ostree-repo.c
+++ b/src/libostree/ostree-repo.c
@@ -3402,7 +3402,11 @@ checkout_file_thread (GSimpleAsyncResult     *result,
 
       objdir = g_file_get_parent (loose_path);
       if (!ot_gfile_ensure_directory (objdir, TRUE, error))
-        goto out;
+        {
+          g_prefix_error (error, "Creating cache directory %s: ",
+                          ot_gfile_get_path_cached (objdir));
+          goto out;
+        }
 
       /* Use UNION_FILES to make this last-one-wins thread behavior
        * for now; we lose deduplication potentially, but oh well
@@ -3469,7 +3473,11 @@ checkout_file_thread (GSimpleAsyncResult     *result,
                                      checkout_data->overwrite_mode,
                                      checkout_data->source_info, xattrs, 
                                      input, cancellable, error))
-        goto out;
+        {
+          g_prefix_error (error, "Copying object %s to %s: ", checksum,
+                          ot_gfile_get_path_cached (checkout_data->destination));
+          goto out;
+        }
     }
 
  out: