erofsutils

func ConvertErofs ¶

func ConvertErofs(ctx context.Context, layerPath string, srcDir string, mkfsExtraOpts []string) error

func ConvertTarErofs ¶

func ConvertTarErofs(ctx context.Context, r io.Reader, layerPath, uuid string, mkfsExtraOpts []string) error

func GenerateTarIndexAndAppendTar ¶ added in v2.2.0

func GenerateTarIndexAndAppendTar(ctx context.Context, r io.Reader, layerPath string, mkfsExtraOpts []string) error

GenerateTarIndexAndAppendTar calculates tar index using --tar=i option and appends the original tar content to create a combined EROFS layer.

The `--tar=i` option instructs mkfs.erofs to only generate the tar index for the tar content. The resulting file structure is: [Tar index][Original tar content]

func MountsToLayer ¶

func MountsToLayer(mounts []mount.Mount) (string, error)

MountsToLayer returns the snapshot layer directory in order to generate EROFS-formatted blobs;

The candidate will be checked with ".erofslayer" to make sure this active snapshot is really generated by the EROFS snapshotter instead of others.

func SupportGenerateFromTar ¶ added in v2.2.0

func SupportGenerateFromTar() (bool, error)

SupportGenerateFromTar checks if the installed version of mkfs.erofs supports the tar mode (--tar option).