`std/archive`

tar archives (POSIX ustar): tarred writes the entries as an archive that depends on nothing but the entries, and untarred reads one back. A package of the registry is a tar inside gzip (std/compression, docs/design/RELEASE.md section 7.2).

Only regular files are written and read: a directory entry is skipped, and a link, a device or an extended header is refused, because a package has no use for one and a link is how an archive writes outside of where it is unpacked. A path is kept as the archive says it; whoever writes the files out checks it (no .., not absolute).

Modules

std/archive/libtar archives (POSIX ustar): [tarred] writes the entries as an archive that depends on nothing but the entries, and [untarred] reads one back.

Everything

type ArchiveErrorA path an archive cannot hold, or an archive that breaks the format: what, and the byte where it was found.
extend ArchiveError with From<ReadError>A read of std/binary that failed on the bytes of an archive, with its own words and offset.
type TarEntryOne file of an archive: its path, with / between the directories, and its bytes.
fn tarredThe entries as a ustar archive, sorted by path, with nothing of the machine in it: every mode 0644, every time 0, no owner, no group.
fn untarredThe regular files of an archive, in the order it holds them.