The package exports are now cleaned up to remove a lot of stuttering in
the API. We also remove direct mapping of refs to the filesystem, opting
for a hash-based approach. This *does* affect insertion performance,
since it requires more individual file ios. A benchmark baseline has
been added and we can fix this later.
Signed-off-by: Stephen J Day <stephen.day@docker.com>
Break up the content store prototype into a few logical files. We have a
file for the store, the writer and helpers.
Also, the writer has been modified to remove write and exec permissions
on blobs in the store.
Signed-off-by: Stephen J Day <stephen.day@docker.com>
