From dfd18d0d751c06c8e9e93059e7a6c4fca363cc76 Mon Sep 17 00:00:00 2001
From: Maxim Cournoyer <maxim.cournoyer@gmail.com>
Date: Tue, 22 Mar 2022 14:47:10 -0400
Subject: build: gnu-build-system: Compress man pages with zstd.
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The aim is to improve the efficiency of computing the man pages database,
which must decompress the man pages.  Zstd is faster than gzip, especially for
decompression, and has a similar compression ratio.

* gnu/packages/commencement.scm (%final-inputs): Add zstd.
* guix/build/gnu-build-system.scm
(compress-documentation) Update doc.
<info-compressor, info-compressor-flags, man-compressor, man-compressor-flags>
<man-compressor-file-extension>: New arguments.
<compressed-documentation-extension>: Rename argument to...
<info-compressor-file-extension>: ... this.  Add an 'extension' argument to
the retarget-symlink nested procedure.  Use new arguments in nested
'maybe-compress' procedure.

Reviewed-by: Ludovic Courtès <ludo@gnu.org>
Change-Id: Ibaad4658f8e5151633714d263d9198f56d255020
---
 gnu/packages/commencement.scm | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

(limited to 'gnu')

diff --git a/gnu/packages/commencement.scm b/gnu/packages/commencement.scm
index d73e9f9839c..8e6340bcb0a 100644
--- a/gnu/packages/commencement.scm
+++ b/gnu/packages/commencement.scm
@@ -3492,7 +3492,8 @@ exec ~a/bin/~a-~a -B~a/lib -Wl,-dynamic-linker -Wl,~a/~a \"$@\"~%"
                               (native-inputs
                                (list (if (target-hurd?)
                                          glibc-utf8-locales-final/hurd
-                                         glibc-utf8-locales-final)))))))
+                                         glibc-utf8-locales-final)))))
+                   ("zstd" ,zstd)))
           ("sed" ,sed-final)
           ("grep" ,grep-final)
           ("xz" ,xz-final)
-- 
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