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gnu: info-reader: Reference gzip by absolute path.

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This allows doing "guix shell --pure info-reader guile -- info guile".

* gnu/packages/texinfo.scm (info-reader)[arguments]: Add
'absolute-binary-path' phase to refer to gzip by the absolute store
file name.
[inputs]: Add 'gzip'.

Signed-off-by: Nicolas Goaziou <mail@nicolasgoaziou.fr>
This commit is contained in:
Maxime Devos 2022-01-12 12:08:34 +00:00 committed by Nicolas Goaziou
parent 49e1396cf5
commit c4b3f9421e
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gnu/packages/texinfo.scm
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@ -8,6 +8,7 @@
;;; Copyright © 2019, 2020 Mathieu Othacehe <m.othacehe@gmail.com>
;;; Copyright © 2020 Nicolas Goaziou <mail@nicolasgoaziou.fr>
;;; Copyright © 2020 Jan (janneke) Nieuwenhuizen <janneke@gnu.org>
;;; Copyright © 2021 Maxime Devos <maximedevos@telenet.be>
;;;
;;; This file is part of GNU Guix.
;;;
@ -156,6 +157,17 @@ is on expressing the content semantically, avoiding physical markup commands.")
`(,@(substitute-keyword-arguments (package-arguments texinfo)
((#:phases phases)
`(modify-phases ,phases
;; Make sure 'info-reader' can read compressed info files
;; in a pure environment. There are also a few other
;; uncompressors listed in this file (lzip, unxz, bunzip2, ...)
;; but let's not include them because info manuals in Guix
;; are always compressed with 'gzip'.
;; TODO(core-updates): maybe move to the 'texinfo' package.
(add-after 'unpack 'absolute-binary-path
(lambda* (#:key inputs #:allow-other-keys)
(substitute* "info/filesys.c"
(("gunzip") (search-input-file inputs "/bin/gunzip"))
(("gzip") (search-input-file inputs "/bin/gzip")))))
(add-after 'install 'keep-only-info-reader
(lambda* (#:key outputs #:allow-other-keys)
;; Remove everything but 'bin/info' and associated
@ -179,7 +191,9 @@ is on expressing the content semantically, avoiding physical markup commands.")
"perl")
#:modules ((ice-9 ftw) (srfi srfi-1)
,@%gnu-build-system-modules)))
(synopsis "Standalone Info documentation reader")))
(synopsis "Standalone Info documentation reader")
(inputs (modify-inputs (package-inputs texinfo)
(prepend gzip)))))
(define-public texi2html
(package