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;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2020 Andrew Whatson <whatson@gmail.com>
;;;
;;; This file is NOT part of GNU Guix.
;;;
;;; This program 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.
;;;
;;; This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
(define-module (crn packages)
#:use-module ((gnu packages) #:prefix gnu:)
#:use-module (guix diagnostics)
#:use-module (guix i18n)
#:use-module ((srfi srfi-1) #:prefix srfi:)
#:export (crn/search-patch
crn/search-patches
%patch-path))
(define %channel-root
(srfi:find (lambda (path)
(file-exists? (string-append path "/crn/packages.scm")))
%load-path))
(define %patch-path
(make-parameter
(cons
(string-append %channel-root "/crn/packages/patches")
(gnu:%patch-path))))
(define (crn/search-patch file-name)
"Search the patch FILE-NAME. Raise an error if not found."
;;(search-path (%patch-path) file-name))
(or (search-path (%patch-path) file-name)
(raise (formatted-message (G_ "~a: patch not found")
file-name))))
(define-syntax-rule (crn/search-patches file-name ...)
"Return the list of absolute file names corresponding to each
FILE-NAME found in %PATCH-PATH."
(list (search-path (%patch-path) file-name) ...))
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