package archive // import "github.com/docker/docker/pkg/archive" // Whiteouts are files with a special meaning for the layered filesystem. // Docker uses AUFS whiteout files inside exported archives. In other // filesystems these files are generated/handled on tar creation/extraction. // WhiteoutPrefix prefix means file is a whiteout. If this is followed by a // filename this means that file has been removed from the base layer. const WhiteoutPrefix = ".wh." // WhiteoutMetaPrefix prefix means whiteout has a special meaning and is not // for removing an actual file. Normally these files are excluded from exported // archives. const WhiteoutMetaPrefix = WhiteoutPrefix + WhiteoutPrefix // WhiteoutLinkDir is a directory AUFS uses for storing hardlink links to other // layers. Normally these should not go into exported archives and all changed // hardlinks should be copied to the top layer. const WhiteoutLinkDir = WhiteoutMetaPrefix + "plnk" // WhiteoutOpaqueDir file means directory has been made opaque - meaning // readdir calls to this directory do not follow to lower layers. const WhiteoutOpaqueDir = WhiteoutMetaPrefix + ".opq"