guix-play/guix/scripts/import/elpa.scm
Oleg Pykhalov 74032da3a2
import: elpa: Add recursive import.
* doc/guix.texi (Invoking guix import): Document elpa recursive import.
* guix/import/elpa.scm (elpa-package->sexp): Return package and
dependencies values.
(elpa-guix-name, elpa-recursive-import): New procedures.
* guix/scripts/import/elpa.scm (show-help, %options): Add recursive
option.
(guix-import-elpa): Use 'elpa-recursive-import'.
2018-06-08 14:58:33 +03:00

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;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2015 Federico Beffa <beffa@fbengineering.ch>
;;; Copyright © 2018 Oleg Pykhalov <go.wigust@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 scripts import elpa)
#:use-module (guix ui)
#:use-module (guix utils)
#:use-module (guix scripts)
#:use-module (guix import elpa)
#:use-module (guix import utils)
#:use-module (guix scripts import)
#:use-module (srfi srfi-1)
#:use-module (srfi srfi-11)
#:use-module (srfi srfi-37)
#:use-module (srfi srfi-41)
#:use-module (ice-9 match)
#:use-module (ice-9 format)
#:export (guix-import-elpa))
;;;
;;; Command-line options.
;;;
(define %default-options
'((repo . gnu)))
(define (show-help)
(display (G_ "Usage: guix import elpa PACKAGE-NAME
Import the latest package named PACKAGE-NAME from an ELPA repository.\n"))
(display (G_ "
-a, --archive=ARCHIVE specify the archive repository"))
(display (G_ "
-h, --help display this help and exit"))
(display (G_ "
-r, --recursive generate package expressions for all Emacs packages that are not yet in Guix"))
(display (G_ "
-V, --version display version information and exit"))
(newline)
(show-bug-report-information))
(define %options
;; Specification of the command-line options.
(cons* (option '(#\h "help") #f #f
(lambda args
(show-help)
(exit 0)))
(option '(#\V "version") #f #f
(lambda args
(show-version-and-exit "guix import elpa")))
(option '(#\a "archive") #t #f
(lambda (opt name arg result)
(alist-cons 'repo (string->symbol arg)
(alist-delete 'repo result))))
(option '(#\r "recursive") #f #f
(lambda (opt name arg result)
(alist-cons 'recursive #t result)))
%standard-import-options))
;;;
;;; Entry point.
;;;
(define (guix-import-elpa . args)
(define (parse-options)
;; Return the alist of option values.
(args-fold* args %options
(lambda (opt name arg result)
(leave (G_ "~A: unrecognized option~%") name))
(lambda (arg result)
(alist-cons 'argument arg result))
%default-options))
(let* ((opts (parse-options))
(args (filter-map (match-lambda
(('argument . value)
value)
(_ #f))
(reverse opts))))
(match args
((package-name)
(if (assoc-ref opts 'recursive)
(map (match-lambda
((and ('package ('name name) . rest) pkg)
`(define-public ,(string->symbol name)
,pkg))
(_ #f))
(reverse
(stream->list
(elpa-recursive-import package-name
(or (assoc-ref opts 'repo) 'gnu)))))
(let ((sexp (elpa->guix-package package-name (assoc-ref opts 'repo))))
(unless sexp
(leave (G_ "failed to download package '~a'~%") package-name))
sexp)))
(()
(leave (G_ "too few arguments~%")))
((many ...)
(leave (G_ "too many arguments~%"))))))
;;; elpa.scm ends here