racket/collects/file/doc/tar.scrbl
2007-12-29 19:27:05 +00:00

35 lines
1.4 KiB
Racket

#lang scribble/doc
@(require "common.ss"
(for-label file/tar))
@title{@exec{tar} File Creation}
@defmodule[file/tar]{The @schememodname[file/tar] library provides
utilities to create archive files in USTAR format, like the archive
that the Unix utility @exec{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.''}
@defproc[(tar [tar-file path-string?][path path-string?] ...)
void?]{
Creates @scheme[tar-file], which holds the complete content of all
@scheme[path]s. The given @scheme[path]s 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
@scheme[path], its ancestor directories are also added to the
resulting tar file, up to the current directory (using
@scheme[pathlist-closure]).}
@defproc[(tar->output [paths (listof path-string?)]
[out output-port? (current-output-port)])
void?]{
Packages each of the given @scheme[paths] in a @exec{tar} format
archive that is written directly to the @scheme[out]. The specified
@scheme[paths] are included as-is; if a directory is specified, its
content is not automatically added, and nested directories are added
without parent directories.}