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| | ;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2014 David Thompson <davet@gnu.org>
;;;
;;; This file is part of GNU Guix.
;;;
;;; GNU Guix is free software; you can redistribute it and/or modify it
;;; under the terms of the GNU General Public License as published by
;;; the Free Software Foundation; either version 3 of the License, or (at
;;; your option) any later version.
;;;
;;; GNU Guix is distributed in the hope that it will be useful, but
;;; WITHOUT ANY WARRANTY; without even the implied warranty of
;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;;; GNU General Public License for more details.
;;;
;;; You should have received a copy of the GNU General Public License
;;; along with GNU Guix. If not, see <http://www.gnu.org/licenses/>.
(define-module (guix build ruby-build-system)
#:use-module ((guix build gnu-build-system) #:prefix gnu:)
#:use-module (guix build utils)
#:use-module (ice-9 match)
#:use-module (ice-9 regex)
#:use-module (srfi srfi-1)
#:use-module (srfi srfi-26)
#:export (%standard-phases
ruby-build))
;; Commentary:
;;
;; Builder-side code of the standard Ruby package build procedure.
;;
;; Code:
(define (gem-directory inputs)
"Return the gem installation directory for the version of Ruby within
INPUTS."
;; Leave off the patch version number in the directory name.
(string-append "/lib/ruby/gems"
(match:substring (string-match "ruby-(.*)\\.[0-9]$"
(assoc-ref inputs "ruby"))
1)
".0"))
(define (first-matching-file pattern)
"Return the first file name that matches PATTERN in the current working
directory."
(match (find-files "." pattern)
((file-name . _) file-name)
(() (error "No files matching pattern: " pattern))))
;; Most gemspecs assume that builds are taking place within a git repository
;; by include calls to 'git ls-files'. In order for these gemspecs to work
;; as-is, every file in the source tree is added to the staging area.
(define gitify
(lambda _
(and (zero? (system* "git" "init"))
(zero? (system* "git" "add" ".")))))
(define build
(lambda _
(zero? (system* "gem" "build" (first-matching-file "\\.gemspec$")))))
(define* (check #:key tests? test-target #:allow-other-keys)
(if tests?
(zero? (system* "rake" test-target))
#t))
(define* (install #:key source inputs outputs #:allow-other-keys)
(let* ((out (assoc-ref outputs "out"))
(gem-home (string-append out (gem-directory inputs))))
(setenv "GEM_HOME" gem-home)
(mkdir-p gem-home)
(zero? (system* "gem" "install" "--local"
(first-matching-file "\\.gem$")
;; Executables should go into /bin, not /lib/ruby/gems.
"--bindir" (string-append out "/bin")))))
(define* (patch-executables #:key inputs outputs #:allow-other-keys)
(let* ((out (assoc-ref outputs "out"))
(gem-dir (gem-directory inputs))
;; Ruby code to add all input gems to the load path.
(ruby-snippet
(string-concatenate
(filter-map (match-lambda
((_ . input)
(let ((path (string-append input gem-dir)))
(and (file-exists? path)
(string-append "Gem.path.unshift '"
path "'\n")))))
inputs))))
;; Insert code snippet before the built gem is loaded.
(substitute* (find-files (string-append out "/bin") ".*")
(("(gem '.*', version\n)" gem-load-line)
(string-append ruby-snippet gem-load-line)))
#t))
(define %standard-phases
(modify-phases gnu:%standard-phases
(delete configure)
(add-after unpack gitify gitify)
(replace build build)
(replace install install)
(add-after install patch-executables patch-executables)
(replace check check)))
(define* (ruby-build #:key inputs (phases %standard-phases)
#:allow-other-keys #:rest args)
(apply gnu:gnu-build #:inputs inputs #:phases phases args))
|