class

Bootstrap::TarWriter

Write a .tar.gz file for putting the generated rootfs into a single file

Constants

CHECKSUM_LENGTH = 8

CHECKSUM_OFFSET = 148

GID_LENGTH = 8

GID_OFFSET = 116

HEADER_SIZE = 512

POSIX ustar header layout: offsets/lengths per POSIX.1-1988. Reference: https://pubs.opengroup.org/onlinepubs/009695399/basedefs/tar.h.html

LINKNAME_LENGTH = 100

LINKNAME_OFFSET = 157

MAGIC_OFFSET = 257

MODE_LENGTH = 8

MODE_OFFSET = 100

MTIME_LENGTH = 12

MTIME_OFFSET = 136

NAME_LENGTH = 100

NAME_OFFSET = 0

SIZE_LENGTH = 12

SIZE_OFFSET = 124

TYPE_DIRECTORY = '5'

TYPE_FILE = '0'

TYPE_PAX = 'x'

TYPE_SYMLINK = '2'

TYPEFLAG_OFFSET = 156

UID_LENGTH = 8

UID_OFFSET = 108

VERSION_OFFSET = 263

new(io : IO, sources : Array(Path), base_path : Path = "/")

Create a tar writer rooted at a source directory.

write_gz(sources : Array(Path), output : Path, base_path : Path = Path["/"])

Write a gzipped tarball for a directory tree.

write_all

Write every entry in the source tree to the tar stream.