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author ;;; GNU Guix --- Functional package management for GNU ;;; Copyright © 2017, 2018, 2019 Ludovic Courtès <ludo@gnu.org> ;;; ;;; 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/>. ;;; Commentary: ;;; ;;; This script updates the list of new and updated packages in 'NEWS'. ;;; ;;; Code: (use-modules (gnu) (guix) (guix build utils) ((guix ui) #:select (fill-paragraph)) (srfi srfi-1) (srfi srfi-11) (ice-9 match) (ice-9 rdelim) (ice-9 regex) (ice-9 vlist) (ice-9 pretty-print)) (define %header-rx (make-regexp "^\\* Changes in (version )?([0-9.]+) \\(since ([0-9.]+)\\)")) (define (NEWS->versions port) "Return two values: the previous version and the current version as read from PORT, which is an input port on the 'NEWS' file." (let loop () (let ((line (read-line port))) (cond ((eof-object? line) (error "failed to determine previous and current version" port)) ((regexp-exec %header-rx line) => (lambda (match) (values (match:substring match 3) (match:substring match 2)))) (else (loop)))))) (define (skip-to-org-heading port) "Read from PORT until an Org heading is found." (let loop () (let ((next (peek-char port))) (cond ((eqv? next #\*) #t) ((eof-object? next) (error "next heading could not be found")) (else (read-line port) (loop)))))) (define (rewrite-org-section input output heading-rx proc) "Write to OUTPUT the text read from INPUT, but with the first Org section matching HEADING-RX replaced by NEW-HEADING and CONTENTS." (let loop () (let ((line (read-line input))) (cond ((eof-object? line) (error "failed to match
