diff options
Diffstat (limited to 'guix/build/utils.scm')
| -rw-r--r-- | guix/build/utils.scm | 47 |
1 files changed, 32 insertions, 15 deletions
diff --git a/guix/build/utils.scm b/guix/build/utils.scm index 6c40d70e21..6c37021673 100644 --- a/guix/build/utils.scm +++ b/guix/build/utils.scm @@ -6,7 +6,7 @@ ;;; Copyright © 2018 Arun Isaac <arunisaac@systemreboot.net> ;;; Copyright © 2018, 2019 Ricardo Wurmus <rekado@elephly.net> ;;; Copyright © 2020 Efraim Flashner <efraim@flashner.co.il> -;;; Copyright © 2020 Maxim Cournoyer <maxim.cournoyer@gmail.com> +;;; Copyright © 2020, 2021 Maxim Cournoyer <maxim.cournoyer@gmail.com> ;;; ;;; This file is part of GNU Guix. ;;; @@ -51,6 +51,10 @@ package-name->name+version parallel-job-count + compressor + tarball? + %xz-parallel-args + directory-exists? executable-file? symbolic-link? @@ -113,9 +117,7 @@ make-desktop-entry-file - locale-category->string - - %xz-parallel-args)) + locale-category->string)) ;;; @@ -139,6 +141,32 @@ ;;; +;;; Compression helpers. +;;; + +(define (compressor file-name) + "Return the name of the compressor package/binary used to compress or +decompress FILE-NAME, based on its file extension, else false." + (cond ((string-suffix? "gz" file-name) "gzip") + ((string-suffix? "Z" file-name) "gzip") + ((string-suffix? "bz2" file-name) "bzip2") + ((string-suffix? "lz" file-name) "lzip") + ((string-suffix? "zip" file-name) "unzip") + ((string-suffix? "xz" file-name) "xz") + (else #f))) ;no compression used/unknown file extension + +(define (tarball? file-name) + "True when FILE-NAME has a tar file extension." + (string-match "\\.(tar(\\..*)?|tgz|tbz)$" file-name)) + +(define (%xz-parallel-args) + "The xz arguments required to enable bit-reproducible, multi-threaded +compression." + (list "--memlimit=50%" + (format #f "--threads=~a" (max 2 (parallel-job-count))))) + + +;;; ;;; Directories. ;;; @@ -1537,17 +1565,6 @@ returned." LC_NAME LC_NUMERIC LC_PAPER LC_TELEPHONE LC_TIME))) - -;;; -;;; Others. -;;; - -(define (%xz-parallel-args) - "The xz arguments required to enable bit-reproducible, multi-threaded -compression." - (list "--memlimit=50%" - (format #f "--threads=~a" (max 2 (parallel-job-count))))) - ;;; Local Variables: ;;; eval: (put 'call-with-output-file/atomic 'scheme-indent-function 1) ;;; eval: (put 'call-with-ascii-input-file 'scheme-indent-function 1) |