Commits on Sep 10, 2018

1. umoci repack: create simplified whiteouts …

   This change ultimately makes our images a little bit smaller by no
   longer whiting-out every sub-entry when a directory has been deleted.
   While this is a net benefit, the cause of this change is a Docker
   breakage (which arguably added a restriction that is contrary to the OCI
   specification and thus it is definitely *their* bug). But to play nice
   (and to take the opportunity to improve some images) we can fix it in
   umoci.
   
   Signed-off-by: Aleksa Sarai <asarai@suse.de>

   

   cyphar committed Sep 10, 2018
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2. umoci insert: extend to support whiteouts …

   Previously umoci-insert(1) was quite limited in that it would only
   insert a given file or directory without having any configurability.
   Something users might want is the ability to delete a path without an
   unpack-repack cycle. Or they want to replace the contents of a directory
   rather than merge them.
   
   To this effect, add --whiteout and --opaque which provide the
   corresponding features. --whiteout just adds a whiteout at the target
   path, while --opaque adds an opaque whiteout for the target before doing
   the copy.
   
   You _can_ use --whiteout and --opaque together but it's basically
   useless, and Docker might complain for no good reason.
   
   Signed-off-by: Aleksa Sarai <asarai@suse.de>

   

   cyphar committed Sep 10, 2018
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