util

func ExtractImage ¶ added in v0.2.0

func ExtractImage(path, dst string, fileMap map[string]struct{}) error

ExtractImage will extract the contents of the image at path to the directory at dst. If fileMap is set, only files in it will be extracted.

func GetManifest ¶

func GetManifest(acipath string) (*schema.ImageManifest, error)

GetManifest will read in the manifest from the untarred ACI stored at acipath

func IsMounted ¶ added in v0.3.0

func IsMounted(path string) (bool, error)

func MaybeUnmount ¶ added in v0.3.0

func MaybeUnmount(path string) error

func ModifyManifest ¶

func ModifyManifest(fn func(*schema.ImageManifest) error, acipath string) error

ModifyManifest will read in the manifest from the untarred ACI stored at acipath, run the fn function (which is intended to modify the manifest), and then write the resulting manifest back to the file it was read from.

func PrintManifest ¶ added in v0.2.0

func PrintManifest(man *schema.ImageManifest, prettyPrint bool) error

PrintManifest will print the given manifest to stdout, optionally inserting whitespace to make it more human readable.

func RmAndMkdir ¶

func RmAndMkdir(path string) error

RmAndMkdir will remove anything at path if it exists, and then create a directory at path.