From af90cc45aec1aa03ce25feae403e5d7eb90a9a01 Mon Sep 17 00:00:00 2001
From: Nicolas Goaziou <mail@nicolasgoaziou.fr>
Date: Sun, 21 Oct 2018 21:12:00 +0200
Subject: [PATCH] gnu: giac-xcas: Add a "doc" output
* gnu/packages/algebra.scm (giac-xcas): Add "doc" output.
[arguments]: Add phase to install documentation in the appropriate directory.
---
gnu/packages/algebra.scm | 28 +++++++++++++++++++++++++++-
1 file changed, 27 insertions(+), 1 deletion(-)
diff --git a/gnu/packages/algebra.scm b/gnu/packages/algebra.scm
index fdae3ac55b7..cc1a8f25d09 100644
--- a/gnu/packages/algebra.scm
+++ b/gnu/packages/algebra.scm
@@ -257,8 +257,12 @@ (define-public giac-xcas
(base32
"0ds1zh712sr20qh0fih8jnm4nlv90andllp8n263qs7rlhblz551"))))
(build-system gnu-build-system)
+ (outputs '("out" "doc")) ;77MiB of documentation
(arguments
- `(#:phases
+ `(#:modules ((ice-9 ftw)
+ (guix build utils)
+ (guix build gnu-build-system))
+ #:phases
(modify-phases %standard-phases
(add-after 'unpack 'patch-bin-cp
;; Some Makefiles contain hard-coded "/bin/cp".
@@ -271,6 +275,28 @@ (define-public giac-xcas
(lambda _
(substitute* "check/Makefile.in"
(("chk_fhan11") ""))
+ #t))
+ (add-after 'install 'install-doc
+ ;; Setting --docdir to "doc" output isn't sufficient as
+ ;; documentation and examples are scattered throughout the source.
+ (lambda* (#:key outputs #:allow-other-keys)
+ (let* ((out (assoc-ref outputs "out"))
+ (doc (assoc-ref outputs "doc"))
+ (docdir (string-append doc
+ "/share/doc/"
+ (string-append ,name "-" ,version))))
+ ;; For some reason, the install process moves
+ ;; "share/giac/examples" instead of "share/giac/doc" to
+ ;; "$(docdir)". Clean up the mess and start over.
+ (delete-file-recursively (string-append doc "/share"))
+ (mkdir-p docdir)
+ (with-directory-excursion out
+ (for-each (lambda (f)
+ (unless (member f '("." ".."))
+ (copy-recursively (string-append "share/giac/" f)
+ (string-append docdir "/" f))))
+ (scandir "share/giac"))
+ (delete-file-recursively "share/giac")))
#t)))))
(inputs
`(("fltk" ,fltk)
--
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