[github/fretlink/terraform-provider-statuscake.git] / vendor / github.com / fsouza / go-dockerclient / external / github.com / docker / docker / pkg / archive / whiteouts.go

package 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"
Commit	Line	Data
9b12e4fe JC	1	package archive
	2
	3	// Whiteouts are files with a special meaning for the layered filesystem.
	4	// Docker uses AUFS whiteout files inside exported archives. In other
	5	// filesystems these files are generated/handled on tar creation/extraction.
	6
	7	// WhiteoutPrefix prefix means file is a whiteout. If this is followed by a
	8	// filename this means that file has been removed from the base layer.
	9	const WhiteoutPrefix = ".wh."
	10
	11	// WhiteoutMetaPrefix prefix means whiteout has a special meaning and is not
	12	// for removing an actual file. Normally these files are excluded from exported
	13	// archives.
	14	const WhiteoutMetaPrefix = WhiteoutPrefix + WhiteoutPrefix
	15
	16	// WhiteoutLinkDir is a directory AUFS uses for storing hardlink links to other
	17	// layers. Normally these should not go into exported archives and all changed
	18	// hardlinks should be copied to the top layer.
	19	const WhiteoutLinkDir = WhiteoutMetaPrefix + "plnk"
	20
	21	// WhiteoutOpaqueDir file means directory has been made opaque - meaning
	22	// readdir calls to this directory do not follow to lower layers.
	23	const WhiteoutOpaqueDir = WhiteoutMetaPrefix + ".opq"