331 lines
13 KiB
Scheme
331 lines
13 KiB
Scheme
;;; GNU Guix --- Functional package management for GNU
|
|
;;; Copyright © 2015 David Thompson <davet@gnu.org>
|
|
;;; Copyright © 2015 Pjotr Prins <pjotr.public01@thebird.nl>
|
|
;;; Copyright © 2015, 2016 Ben Woodcroft <donttrustben@gmail.com>
|
|
;;;
|
|
;;; 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 ftw)
|
|
#:use-module (ice-9 match)
|
|
#:use-module (ice-9 popen)
|
|
#:use-module (ice-9 rdelim)
|
|
#: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 (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))))
|
|
|
|
(define gnu:unpack (assq-ref gnu:%standard-phases 'unpack))
|
|
|
|
(define (gem-archive? file-name)
|
|
(string-match "^.*\\.gem$" file-name))
|
|
|
|
(define* (unpack #:key source #:allow-other-keys)
|
|
"Unpack the gem SOURCE and enter the resulting directory."
|
|
(if (gem-archive? source)
|
|
(begin
|
|
(invoke "gem" "unpack" source)
|
|
;; The unpacked gem directory is named the same as the archive,
|
|
;; sans the ".gem" extension. It is renamed to simply "gem" in an
|
|
;; effort to keep file names shorter to avoid UNIX-domain socket
|
|
;; file names and shebangs that exceed the system's fixed maximum
|
|
;; length when running test suites.
|
|
(let ((dir (match:substring (string-match "^(.*)\\.gem$"
|
|
(basename source))
|
|
1)))
|
|
(rename-file dir "gem")
|
|
(chdir "gem"))
|
|
#t)
|
|
;; Use GNU unpack strategy for things that aren't gem archives.
|
|
(gnu:unpack #:source source)))
|
|
|
|
(define (first-gemspec)
|
|
(first-matching-file "\\.gemspec$"))
|
|
|
|
(define* (replace-git-ls-files #:key source #:allow-other-keys)
|
|
"Many gemspec files downloaded from outside rubygems.org use `git ls-files`
|
|
to list of the files to be included in the built gem. However, since this
|
|
operation is not deterministic, we replace it with `find`."
|
|
(when (not (gem-archive? source))
|
|
(let ((gemspec (first-gemspec)))
|
|
(substitute* gemspec
|
|
(("`git ls-files`") "`find . -type f |sort`")
|
|
(("`git ls-files -z`") "`find . -type f -print0 |sort -z`"))))
|
|
#t)
|
|
|
|
(define* (extract-gemspec #:key source #:allow-other-keys)
|
|
"Remove the original gemspec, if present, and replace it with a new one.
|
|
This avoids issues with upstream gemspecs requiring tools such as git to
|
|
generate the files list."
|
|
(if (gem-archive? source)
|
|
(let ((gemspec (or (false-if-exception (first-gemspec))
|
|
;; Make new gemspec if one wasn't shipped.
|
|
".gemspec")))
|
|
|
|
(when (file-exists? gemspec) (delete-file gemspec))
|
|
|
|
;; Extract gemspec from source gem.
|
|
(let ((pipe (open-pipe* OPEN_READ "gem" "spec" "--ruby" source)))
|
|
(dynamic-wind
|
|
(const #t)
|
|
(lambda ()
|
|
(call-with-output-file gemspec
|
|
(lambda (out)
|
|
;; 'gem spec' writes to stdout, but 'gem build' only reads
|
|
;; gemspecs from a file, so we redirect the output to a file.
|
|
(while (not (eof-object? (peek-char pipe)))
|
|
(write-char (read-char pipe) out))))
|
|
#t)
|
|
(lambda ()
|
|
(close-pipe pipe)))))
|
|
(display "extract-gemspec: skipping as source is not a gem archive\n"))
|
|
#t)
|
|
|
|
(define* (build #:key source #:allow-other-keys)
|
|
"Build a new gem using the gemspec from the SOURCE gem."
|
|
|
|
;; Build a new gem from the current working directory. This also allows any
|
|
;; dynamic patching done in previous phases to be present in the installed
|
|
;; gem.
|
|
(invoke "gem" "build" (first-gemspec)))
|
|
|
|
(define* (check #:key tests? test-target #:allow-other-keys)
|
|
"Run the gem's test suite rake task TEST-TARGET. Skip the tests if TESTS?
|
|
is #f."
|
|
(if tests?
|
|
(invoke "rake" test-target)
|
|
#t))
|
|
|
|
(define* (install #:key inputs outputs (gem-flags '())
|
|
#:allow-other-keys)
|
|
"Install the gem archive SOURCE to the output store item. Additional
|
|
GEM-FLAGS are passed to the 'gem' invocation, if present."
|
|
(let* ((ruby-version
|
|
(match:substring (string-match "ruby-(.*)\\.[0-9]$"
|
|
(assoc-ref inputs "ruby"))
|
|
1))
|
|
(out (assoc-ref outputs "out"))
|
|
(vendor-dir (string-append out "/lib/ruby/vendor_ruby"))
|
|
(gem-file (first-matching-file "\\.gem$"))
|
|
(gem-file-basename (basename gem-file))
|
|
(gem-name (substring gem-file-basename
|
|
0
|
|
(- (string-length gem-file-basename) 4)))
|
|
(gem-dir (string-append vendor-dir "/gems/" gem-name)))
|
|
(setenv "GEM_VENDOR" vendor-dir)
|
|
|
|
(or (zero?
|
|
;; 'zero? system*' allows the custom error handling to function as
|
|
;; expected, while 'invoke' raises its own exception.
|
|
(apply system* "gem" "install" gem-file
|
|
"--verbose"
|
|
"--local" "--ignore-dependencies" "--vendor"
|
|
;; Executables should go into /bin, not
|
|
;; /lib/ruby/gems.
|
|
"--bindir" (string-append out "/bin")
|
|
gem-flags))
|
|
(begin
|
|
(let ((failed-output-dir (string-append (getcwd) "/out")))
|
|
(mkdir failed-output-dir)
|
|
(copy-recursively out failed-output-dir))
|
|
(error "installation failed")))
|
|
|
|
;; Remove the cached gem file as this is unnecessary and contains
|
|
;; timestamped files rendering builds not reproducible.
|
|
(let ((cached-gem (string-append vendor-dir "/cache/" gem-file)))
|
|
(log-file-deletion cached-gem)
|
|
(delete-file cached-gem))
|
|
|
|
;; For gems with native extensions, several Makefile-related files
|
|
;; are created that contain timestamps or other elements making
|
|
;; them not reproducible. They are unnecessary so we remove them.
|
|
(when (file-exists? (string-append gem-dir "/ext"))
|
|
(for-each (lambda (file)
|
|
(log-file-deletion file)
|
|
(delete-file file))
|
|
(append
|
|
(find-files (string-append vendor-dir "/doc")
|
|
"page-Makefile.ri")
|
|
(find-files (string-append vendor-dir "/extensions")
|
|
"gem_make.out")
|
|
(find-files (string-append gem-dir "/ext")
|
|
"Makefile"))))
|
|
|
|
#t))
|
|
|
|
(define* (wrap-ruby-program prog #:key (gem-clear-paths #t) #:rest vars)
|
|
"Make a wrapper for PROG. VARS should look like this:
|
|
|
|
'(VARIABLE DELIMITER POSITION LIST-OF-DIRECTORIES)
|
|
|
|
where DELIMITER is optional. ':' will be used if DELIMITER is not given.
|
|
|
|
For example, this command:
|
|
|
|
(wrap-ruby-program \"foo\"
|
|
'(\"PATH\" \":\" = (\"/gnu/.../bar/bin\"))
|
|
'(\"CERT_PATH\" suffix (\"/gnu/.../baz/certs\"
|
|
\"/qux/certs\")))
|
|
|
|
will copy 'foo' to '.real/fool' and create the file 'foo' with the following
|
|
contents:
|
|
|
|
#!location/of/bin/ruby
|
|
ENV['PATH'] = \"/gnu/.../bar/bin\"
|
|
ENV['CERT_PATH'] = (ENV.key?('CERT_PATH') ? (ENV['CERT_PATH'] + ':') : '') + '/gnu/.../baz/certs:/qux/certs'
|
|
load location/of/.real/foo
|
|
|
|
This is useful for scripts that expect particular programs to be in $PATH, for
|
|
programs that expect particular gems to be in the GEM_PATH.
|
|
|
|
This is preferable to wrap-program, which uses a bash script, as this prevents
|
|
ruby scripts from being executed with @command{ruby -S ...}.
|
|
|
|
If PROG has previously been wrapped by 'wrap-ruby-program', the wrapper is
|
|
extended with definitions for VARS."
|
|
(define wrapped-file
|
|
(string-append (dirname prog) "/.real/" (basename prog)))
|
|
|
|
(define already-wrapped?
|
|
(file-exists? wrapped-file))
|
|
|
|
(define (last-line port)
|
|
;; Return the last line read from PORT and leave PORT's cursor right
|
|
;; before it.
|
|
(let loop ((previous-line-offset 0)
|
|
(previous-line "")
|
|
(position (seek port 0 SEEK_CUR)))
|
|
(match (read-line port 'concat)
|
|
((? eof-object?)
|
|
(seek port previous-line-offset SEEK_SET)
|
|
previous-line)
|
|
((? string? line)
|
|
(loop position line (+ (string-length line) position))))))
|
|
|
|
(define (export-variable lst)
|
|
;; Return a string that exports an environment variable.
|
|
(match lst
|
|
((var sep '= rest)
|
|
(format #f "ENV['~a'] = '~a'"
|
|
var (string-join rest sep)))
|
|
((var sep 'prefix rest)
|
|
(format #f "ENV['~a'] = '~a' + (ENV.key?('~a') ? ('~a' + ENV['~a']) : '')"
|
|
var (string-join rest sep) var sep var))
|
|
((var sep 'suffix rest)
|
|
(format #f "ENV['~a'] = (ENV.key?('~a') ? (ENV['~a'] + '~a') : '') + '~a'"
|
|
var var var sep (string-join rest sep)))
|
|
((var '= rest)
|
|
(format #f "ENV['~a'] = '~a'"
|
|
var (string-join rest ":")))
|
|
((var 'prefix rest)
|
|
(format #f "ENV['~a'] = '~a' + (ENV.key?('~a') ? (':' + ENV['~a']) : '')"
|
|
var (string-join rest ":") var var))
|
|
((var 'suffix rest)
|
|
(format #f "ENV['~a'] = (ENV.key?('~a') ? (ENV['~a'] + ':') : '') + '~a'"
|
|
var var var (string-join rest ":")))))
|
|
|
|
(if already-wrapped?
|
|
|
|
;; PROG is already a wrapper: add the new "export VAR=VALUE" lines just
|
|
;; before the last line.
|
|
(let* ((port (open-file prog "r+"))
|
|
(last (last-line port)))
|
|
(for-each (lambda (var)
|
|
(display (export-variable var) port)
|
|
(newline port))
|
|
vars)
|
|
(display last port)
|
|
(close-port port))
|
|
|
|
;; PROG is not wrapped yet: create a shell script that sets VARS.
|
|
(let ((prog-tmp (string-append wrapped-file "-tmp")))
|
|
(mkdir-p (dirname prog-tmp))
|
|
(link prog wrapped-file)
|
|
|
|
(call-with-output-file prog-tmp
|
|
(lambda (port)
|
|
(format port
|
|
"#!~a~%~a~%~a~%load '~a'~%"
|
|
(which "ruby")
|
|
(string-join (map export-variable vars) "\n")
|
|
;; This ensures that if the GEM_PATH has been changed,
|
|
;; then that change will be noticed.
|
|
(if gem-clear-paths "Gem.clear_paths" "")
|
|
(canonicalize-path wrapped-file))))
|
|
|
|
(chmod prog-tmp #o755)
|
|
(rename-file prog-tmp prog))))
|
|
|
|
(define* (wrap #:key inputs outputs #:allow-other-keys)
|
|
(define (list-of-files dir)
|
|
(map (cut string-append dir "/" <>)
|
|
(or (scandir dir (lambda (f)
|
|
(let ((s (stat (string-append dir "/" f))))
|
|
(eq? 'regular (stat:type s)))))
|
|
'())))
|
|
|
|
(define bindirs
|
|
(append-map (match-lambda
|
|
((_ . dir)
|
|
(list (string-append dir "/bin")
|
|
(string-append dir "/sbin"))))
|
|
outputs))
|
|
|
|
(let* ((out (assoc-ref outputs "out"))
|
|
(var `("GEM_PATH" prefix
|
|
(,(string-append out "/lib/ruby/vendor_ruby")
|
|
,(getenv "GEM_PATH")))))
|
|
(for-each (lambda (dir)
|
|
(let ((files (list-of-files dir)))
|
|
(for-each (cut wrap-ruby-program <> var)
|
|
files)))
|
|
bindirs))
|
|
#t)
|
|
|
|
(define (log-file-deletion file)
|
|
(display (string-append "deleting '" file "' for reproducibility\n")))
|
|
|
|
(define %standard-phases
|
|
(modify-phases gnu:%standard-phases
|
|
(delete 'bootstrap)
|
|
(delete 'configure)
|
|
(replace 'unpack unpack)
|
|
(add-before 'build 'extract-gemspec extract-gemspec)
|
|
(add-after 'extract-gemspec 'replace-git-ls-files replace-git-ls-files)
|
|
(replace 'build build)
|
|
(replace 'check check)
|
|
(replace 'install install)
|
|
(add-after 'install 'wrap wrap)))
|
|
|
|
(define* (ruby-build #:key inputs (phases %standard-phases)
|
|
#:allow-other-keys #:rest args)
|
|
(apply gnu:gnu-build #:inputs inputs #:phases phases args))
|