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;;; kolam --- GraphQL implementation
;;; Copyright © 2022 Arun Isaac <arunisaac@systemreboot.net>
;;;
;;; This file is part of kolam.
;;;
;;; kolam is free software; you can redistribute it and/or modify it
;;; under the terms of the GNU Affero General Public License as
;;; published by the Free Software Foundation; either version 3 of the
;;; License, or (at your option) any later version.
;;;
;;; kolam 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
;;; Affero General Public License for more details.
;;;
;;; You should have received a copy of the GNU Affero General Public
;;; License along with kolam. If not, see
;;; <http://www.gnu.org/licenses/>.
(import (rnrs io ports)
(srfi srfi-26)
(ice-9 eval-string)
(ice-9 match)
(ice-9 popen)
(guix gexp)
(guix packages)
(guix scripts)
(guix store))
(define (call-with-input-pipe command proc)
"Call PROC with input pipe to COMMAND. COMMAND is a list of program
arguments."
(match command
((prog args ...)
(let ((port #f))
(dynamic-wind
(lambda ()
(set! port (apply open-pipe* OPEN_READ prog args)))
(cut proc port)
(cut close-pipe port))))))
(define (call-with-archive-file archive file proc)
"Call PROC with port reading FILE in lzip compressed tar ARCHIVE."
(call-with-input-pipe (list "tar" "--extract" "--to-stdout"
"--file" archive
(string-append (basename archive ".tar.lz")
"/" file))
proc))
(define (package-in-archive dist-archive)
"Return the package object in guix.scm of DIST-ARCHIVE."
(call-with-archive-file dist-archive "guix.scm"
(lambda (port)
(eval-string (get-string-all port)
#:file (string-append (getcwd) "/guix.scm")))))
(define (check-build dist-archive)
"Check if package in DIST-ARCHIVE builds correctly."
(run-with-store (open-connection)
(build-package
(package
(inherit (package-in-archive dist-archive))
(source (local-file dist-archive))))))
(match (program-arguments)
((_ dist-archive)
(check-build dist-archive)))
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