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;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2017 Federico Beffa <beffa@fbengineering.ch>
;;; Copyright © 2018 Ricardo Wurmus <rekado@elephly.net>
;;;
;;; 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 stackage)
#:use-module (guix ui)
#:use-module (guix utils)
#:use-module (guix packages)
#:use-module (guix scripts)
#:use-module (guix import stackage)
#: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-stackage))
;;;
;;; Command-line options.
;;;
(define %default-options
`((lts-version . "")
(include-test-dependencies? . #t)))
(define (show-help)
(display (G_ "Usage: guix import stackage PACKAGE-NAME
Import and convert the LTS Stackage package for PACKAGE-NAME.\n"))
(display (G_ "
-l VERSION, --lts-version=VERSION
specify the LTS version to use"))
(display (G_ "
-h, --help display this help and exit"))
(display (G_ "
-r, --recursive import packages recursively"))
(display (G_ "
-t, --no-test-dependencies don't include test-only dependencies"))
(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 stackage")))
(option '(#\t "no-test-dependencies") #f #f
(lambda (opt name arg result)
(alist-cons 'include-test-dependencies? #f
(alist-delete 'include-test-dependencies?
result))))
(option '(#\l "lts-version") #t #f
(lambda (opt name arg result)
(alist-cons 'lts-version arg
(alist-delete 'lts-version
result))))
(option '(#\r "recursive") #f #f
(lambda (opt name arg result)
(alist-cons 'recursive #t result)))
%standard-import-options))
;;;
;;; Entry point.
;;;
(define (guix-import-stackage . 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))
(define (run-importer package-name opts error-fn)
(let* ((arguments (list
package-name
#:include-test-dependencies?
(assoc-ref opts 'include-test-dependencies?)
#:lts-version (assoc-ref opts 'lts-version)))
(sexp (if (assoc-ref opts 'recursive)
;; Recursive import
(map (match-lambda
((and ('package ('name name) . rest) pkg)
`(define-public ,(string->symbol name)
,pkg))
(_ #f))
(reverse
(stream->list
(apply stackage-recursive-import arguments))))
;; Single import
(apply stackage->guix-package arguments))))
(unless sexp (error-fn))
sexp))
(let* ((opts (parse-options))
(args (filter-map (match-lambda
(('argument . value)
value)
(_ #f))
(reverse opts))))
(match args
((package-name)
(with-error-handling
(run-importer package-name opts
(lambda ()
(leave (G_ "failed to download cabal file \
for package '~a'~%")
package-name)))))
(()
(leave (G_ "too few arguments~%")))
((many ...)
(leave (G_ "too many arguments~%"))))))
;;; stackage.scm ends here