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b500e7182d
Having the hash of the source gem in the source directory file name proved to be problematic when running the test suite for the 'pg' gem that creates UNIX-domain sockets in the source directory and exceeded the 108 character limit on GNU/Linux systems. * guix/build/ruby-build-system.scm (unpack): Rename unpacked gem directory to "gem".
128 lines
5 KiB
Scheme
128 lines
5 KiB
Scheme
;;; GNU Guix --- Functional package management for GNU
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;;; Copyright © 2015 David Thompson <davet@gnu.org>
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;;; Copyright © 2015 Pjotr Prins <pjotr.public01@thebird.nl>
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;;;
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;;; This file is part of GNU Guix.
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;;;
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;;; GNU Guix is free software; you can redistribute it and/or modify it
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;;; under the terms of the GNU General Public License as published by
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;;; the Free Software Foundation; either version 3 of the License, or (at
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;;; your option) any later version.
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;;;
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;;; GNU Guix is distributed in the hope that it will be useful, but
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;;; WITHOUT ANY WARRANTY; without even the implied warranty of
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;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;;; GNU General Public License for more details.
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;;;
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;;; You should have received a copy of the GNU General Public License
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;;; along with GNU Guix. If not, see <http://www.gnu.org/licenses/>.
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(define-module (guix build ruby-build-system)
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#:use-module ((guix build gnu-build-system) #:prefix gnu:)
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#:use-module (guix build utils)
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#:use-module (ice-9 match)
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#:use-module (ice-9 popen)
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#:use-module (ice-9 regex)
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#:use-module (srfi srfi-1)
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#:use-module (srfi srfi-26)
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#:export (%standard-phases
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ruby-build))
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;; Commentary:
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;;
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;; Builder-side code of the standard Ruby package build procedure.
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;;
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;; Code:
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(define (first-matching-file pattern)
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"Return the first file name that matches PATTERN in the current working
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directory."
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(match (find-files "." pattern)
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((file-name . _) file-name)
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(() (error "No files matching pattern: " pattern))))
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(define* (unpack #:key source #:allow-other-keys)
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"Unpack the gem SOURCE and enter the resulting directory."
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(and (zero? (system* "gem" "unpack" source))
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;; The unpacked gem directory is named the same as the archive, sans
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;; the ".gem" extension. It is renamed to simply "gem" in an effort to
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;; keep file names shorter to avoid UNIX-domain socket file names and
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;; shebangs that exceed the system's fixed maximum length when running
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;; test suites.
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(let ((dir (match:substring (string-match "^(.*)\\.gem$"
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(basename source))
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1)))
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(rename-file dir "gem")
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(chdir "gem")
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#t)))
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(define* (build #:key source #:allow-other-keys)
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"Build a new gem using the gemspec from the SOURCE gem."
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;; Remove the original gemspec, if present, and replace it with a new one.
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;; This avoids issues with upstream gemspecs requiring tools such as git to
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;; generate the files list.
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(let ((gemspec (or (false-if-exception
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(first-matching-file "\\.gemspec$"))
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;; Make new gemspec if one wasn't shipped.
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".gemspec")))
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(when (file-exists? gemspec) (delete-file gemspec))
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;; Extract gemspec from source gem.
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(let ((pipe (open-pipe* OPEN_READ "gem" "spec" "--ruby" source)))
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(dynamic-wind
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(const #t)
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(lambda ()
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(call-with-output-file gemspec
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(lambda (out)
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;; 'gem spec' writes to stdout, but 'gem build' only reads
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;; gemspecs from a file, so we redirect the output to a file.
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(while (not (eof-object? (peek-char pipe)))
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(write-char (read-char pipe) out))))
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#t)
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(lambda ()
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(close-pipe pipe))))
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;; Build a new gem from the current working directory. This also allows any
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;; dynamic patching done in previous phases to be present in the installed
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;; gem.
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(zero? (system* "gem" "build" gemspec))))
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(define* (check #:key tests? test-target #:allow-other-keys)
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"Run the gem's test suite rake task TEST-TARGET. Skip the tests if TESTS?
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is #f."
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(if tests?
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(zero? (system* "rake" test-target))
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#t))
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(define* (install #:key inputs outputs (gem-flags '())
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#:allow-other-keys)
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"Install the gem archive SOURCE to the output store item. Additional
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GEM-FLAGS are passed to the 'gem' invokation, if present."
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(let* ((ruby-version
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(match:substring (string-match "ruby-(.*)\\.[0-9]$"
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(assoc-ref inputs "ruby"))
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1))
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(out (assoc-ref outputs "out"))
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(gem-home (string-append out "/lib/ruby/gems/" ruby-version ".0")))
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(setenv "GEM_HOME" gem-home)
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(mkdir-p gem-home)
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(zero? (apply system* "gem" "install" (first-matching-file "\\.gem$")
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"--local" "--ignore-dependencies"
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;; Executables should go into /bin, not /lib/ruby/gems.
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"--bindir" (string-append out "/bin")
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gem-flags))))
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(define %standard-phases
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(modify-phases gnu:%standard-phases
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(delete 'configure)
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(replace 'build build)
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(replace 'unpack unpack)
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(replace 'install install)
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(replace 'check check)))
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(define* (ruby-build #:key inputs (phases %standard-phases)
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#:allow-other-keys #:rest args)
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(apply gnu:gnu-build #:inputs inputs #:phases phases args))
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