5 tar File Creation
The file/tar library provides
utilities to create archive files in USTAR format, like the archive
that the Unix utility pax generates. The USTAR format imposes
limits on path lengths. The resulting archives contain only
directories and files (symbolic links are followed), and owner
information is not preserved; the owner that is stored in the archive
is always “root.”
procedure
(tar tar-file path ...) → exact-nonnegative-integer?
tar-file : path-string? path : path-string?
Creates tar-file, which holds the complete content of all
paths. The given paths are all expected to be
relative path names of existing directories and files (i.e., relative
to the current directory). If a nested path is provided as a
path, its ancestor directories are also added to the
resulting tar file, up to the current directory (using
pathlist-closure).
procedure
(tar->output paths [out]) → exact-nonnegative-integer?
paths : (listof path?) out : output-port? = (current-output-port)
Packages each of the given paths in a tar format
archive that is written directly to the out. The specified
paths are included as-is; if a directory is specified, its
content is not automatically added, and nested directories are added
without parent directories.
procedure
tar-file : path-string? paths : path-string?