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From: "Ludovic Courtès" <ludo@gnu.org>
To: 45460@debbugs.gnu.org
Subject: [bug#45460] [PATCH 4/5] substitute: Add zstd support.
Date: Sun, 27 Dec 2020 15:38:08 +0100	[thread overview]
Message-ID: <20201227143809.18554-4-ludo@gnu.org> (raw)
In-Reply-To: <20201227143809.18554-1-ludo@gnu.org>

* guix/scripts/substitute.scm (%compression-methods): Add zstd.
(compresses-better?): "lzip" always wins.
---
 guix/scripts/substitute.scm | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/guix/scripts/substitute.scm b/guix/scripts/substitute.scm
index 8084c89ae5..32ebcf1bb9 100755
--- a/guix/scripts/substitute.scm
+++ b/guix/scripts/substitute.scm
@@ -944,6 +944,8 @@ authorized substitutes."
   ;; supported.  See 'decompressed-port' in (guix utils).
   `(("gzip"  . ,(const #t))
     ("lzip"  . ,(const #t))
+    ("zstd"  . ,(lambda ()
+                  (resolve-module '(zstd) #t #f #:ensure #f)))
     ("xz"    . ,(const #t))
     ("bzip2" . ,(const #t))
     ("none"  . ,(const #t))))
@@ -961,6 +963,7 @@ this is a rough approximation."
   (match compression1
     ("none" #f)
     ("gzip" (string=? compression2 "none"))
+    ("lzip" #t)
     (_      (or (string=? compression2 "none")
                 (string=? compression2 "gzip")))))
 
-- 
2.29.2





  parent reply	other threads:[~2020-12-27 14:39 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-12-27 14:13 [bug#45460] [PATCH 0/5] Zstd support for 'guix publish' and 'guix substitute' Ludovic Courtès
2020-12-27 14:38 ` [bug#45460] [PATCH 1/5] utils: Remove 'compressed-output-port' Ludovic Courtès
2020-12-27 14:38   ` [bug#45460] [PATCH 2/5] utils: Support zstd compression via Guile-zstd Ludovic Courtès
2020-12-27 14:38   ` [bug#45460] [PATCH 3/5] publish: Add support for zstd compression Ludovic Courtès
2020-12-28  9:17     ` Jonathan Brielmaier
2021-01-03 15:18       ` Ludovic Courtès
2020-12-27 14:38   ` Ludovic Courtès [this message]
2020-12-27 14:38   ` [bug#45460] [PATCH 5/5] doc: Mention optional dependency on Guile-zstd Ludovic Courtès
2020-12-30  9:30 ` [bug#45460] [PATCH 0/5] Zstd support for 'guix publish' and 'guix substitute' Mathieu Othacehe
2021-01-03 15:17   ` Ludovic Courtès
2021-01-13 22:08   ` Ludovic Courtès

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