diff options
Diffstat (limited to 'gnu')
| -rw-r--r-- | gnu/ci.scm | 3 | ||||
| -rw-r--r-- | gnu/compression.scm | 69 | ||||
| -rw-r--r-- | gnu/local.mk | 1 |
3 files changed, 72 insertions, 1 deletions
diff --git a/gnu/ci.scm b/gnu/ci.scm index 2c51ea7387..19a48bdbf1 100644 --- a/gnu/ci.scm +++ b/gnu/ci.scm @@ -39,9 +39,10 @@ #:select (gpl3+ license? license-name)) #:use-module ((guix utils) #:select (%current-system)) #:use-module ((guix scripts pack) - #:select (lookup-compressor self-contained-tarball)) + #:select (self-contained-tarball)) #:use-module (gnu bootloader) #:use-module (gnu bootloader u-boot) + #:use-module (gnu compression) #:use-module (gnu image) #:use-module (gnu packages) #:use-module (gnu packages gcc) diff --git a/gnu/compression.scm b/gnu/compression.scm new file mode 100644 index 0000000000..0418e80a15 --- /dev/null +++ b/gnu/compression.scm @@ -0,0 +1,69 @@ +;;; GNU Guix --- Functional package management for GNU +;;; Copyright © 2022 Mathieu Othacehe <othacehe@gnu.org> +;;; +;;; This file is part of GNU Guix. +;;; +;;; GNU Guix is free software; you can redistribute it and/or modify it +;;; under the terms of the GNU General Public License as published by +;;; the Free Software Foundation; either version 3 of the License, or (at +;;; your option) any later version. +;;; +;;; GNU Guix is distributed in the hope that it will be useful, but +;;; WITHOUT ANY WARRANTY; without even the implied warranty of +;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +;;; GNU General Public License for more details. +;;; +;;; You should have received a copy of the GNU General Public License +;;; along with GNU Guix. If not, see <http://www.gnu.org/licenses/>. + +(define-module (gnu compression) + #:use-module (guix gexp) + #:use-module (guix ui) + #:use-module ((gnu packages compression) #:hide (zip)) + #:use-module (srfi srfi-1) + #:use-module (srfi srfi-9) + #:use-module (ice-9 match) + #:export (compressor + compressor? + compressor-name + compressor-extension + compressor-command + %compressors + lookup-compressor)) + +;; Type of a compression tool. +(define-record-type <compressor> + (compressor name extension command) + compressor? + (name compressor-name) ;string (e.g., "gzip") + (extension compressor-extension) ;string (e.g., ".lz") + (command compressor-command)) ;gexp (e.g., #~(list "/gnu/store/…/gzip" + ; "-9n" )) + +(define %compressors + ;; Available compression tools. + (list (compressor "gzip" ".gz" + #~(list #+(file-append gzip "/bin/gzip") "-9n")) + (compressor "lzip" ".lz" + #~(list #+(file-append lzip "/bin/lzip") "-9")) + (compressor "xz" ".xz" + #~(append (list #+(file-append xz "/bin/xz") + "-e") + (%xz-parallel-args))) + (compressor "bzip2" ".bz2" + #~(list #+(file-append bzip2 "/bin/bzip2") "-9")) + (compressor "zstd" ".zst" + ;; The default level 3 compresses better than gzip in a + ;; fraction of the time, while the highest level 19 + ;; (de)compresses more slowly and worse than xz. + #~(list #+(file-append zstd "/bin/zstd") "-3")) + (compressor "none" "" #f))) + +(define (lookup-compressor name) + "Return the compressor object called NAME. Error out if it could not be +found." + (or (find (match-lambda + (($ <compressor> name*) + (string=? name* name))) + %compressors) + (leave (G_ "~a: compressor not found~%") name))) diff --git a/gnu/local.mk b/gnu/local.mk index 19102113c9..7fafca2706 100644 --- a/gnu/local.mk +++ b/gnu/local.mk @@ -80,6 +80,7 @@ GNU_SYSTEM_MODULES = \ %D%/bootloader/u-boot.scm \ %D%/bootloader/depthcharge.scm \ %D%/ci.scm \ + %D%/compression.scm \ %D%/home.scm \ %D%/home/services.scm \ %D%/home/services/desktop.scm \ |