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;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2020 Katherine Cox-Buday <cox.katherine.e@gmail.com>
;;; Copyright © 2021 Maxim Cournoyer <maxim.cournoyer@gmail.com>
;;; Copyright © 2021 Zheng Junjie <873216071@qq.com>
;;; Copyright © 2021 Sarah Morgensen <iskarian@mgsn.dev>
;;;
;;; 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 go)
#:use-module (guix ui)
#:use-module (guix utils)
#:use-module (guix scripts)
#:use-module (guix import go)
#:use-module (guix import utils)
#:use-module (guix scripts import)
#:use-module (srfi srfi-1)
#:use-module (srfi srfi-11)
#:use-module (srfi srfi-26)
#:use-module (srfi srfi-37)
#:use-module (ice-9 match)
#:use-module (ice-9 format)
#:use-module (ice-9 receive)
#:export (guix-import-go))
;;;
;;; Command-line options.
;;;
(define %default-options
'((goproxy . "https://proxy.golang.org")))
(define (show-help)
(display (G_ "Usage: guix import go PACKAGE-PATH[@VERSION]
Import and convert the Go module for PACKAGE-PATH. Optionally, a version
can be specified after the arobas (@) character.\n"))
(display (G_ "
-h, --help display this help and exit"))
(display (G_ "
-r, --recursive generate package expressions for all Go modules
that are not yet in Guix"))
(display (G_ "
-p, --goproxy=GOPROXY specify which goproxy server to use"))
(display (G_ "
--pin-versions use the exact versions of a module's dependencies"))
(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 '(#\r "recursive") #f #f
(lambda (opt name arg result)
(alist-cons 'recursive #t result)))
(option '(#\p "goproxy") #t #f
(lambda (opt name arg result)
(alist-cons 'goproxy arg (alist-delete 'goproxy result))))
(option '("pin-versions") #f #f
(lambda (opt name arg result)
(alist-cons 'pin-versions? #t result)))
%standard-import-options))
;;;
;;; Entry point.
;;;
(define (guix-import-go . args)
(define (parse-options)
;; Return the alist of option values.
(parse-command-line args %options (list %default-options)
#:build-options? #f))
(with-error-handling
(let* ((opts (parse-options))
(args (filter-map (match-lambda
(('argument . value)
value)
(_ #f))
(reverse opts)))
;; Append the full version to the package symbol name when using
;; pinned versions.
(package->definition* (if (assoc-ref opts 'pin-versions?)
(cut package->definition <> 'full)
package->definition)))
(match args
((spec) ;e.g., github.com/golang/protobuf@v1.3.1
(receive (name version)
(package-name->name+version spec)
(let ((arguments (list name
#:goproxy (assoc-ref opts 'goproxy)
#:version version
#:pin-versions?
(assoc-ref opts 'pin-versions?))))
(if (assoc-ref opts 'recursive)
;; Recursive import.
(map package->definition*
(apply go-module-recursive-import arguments))
;; Single import.
(let ((sexp (apply go-module->guix-package* arguments)))
(unless sexp
(leave (G_ "failed to download meta-data for module '~a'.~%")
name))
(package->definition* sexp))))))
(()
(leave (G_ "too few arguments~%")))
((many ...)
(leave (G_ "too many arguments~%")))))))
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