;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2017, 2018 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 pretty-print))

(define %header-rx
  (make-regexp "^\\* Changes in (version )?([0-9.]+) \\(since ([0-9.]+)\\)"))

(define (NEWS->versions port)
  "Return two values: the previous ve</td></tr></table>
<table class='tabs'><tr><td>
<a href='/AGH-engineering-thesis/about/'>about</a><a href='/AGH-engineering-thesis/'>summary</a><a href='/AGH-engineering-thesis/refs/?id=b44a3a201ee2b524f31aa93abfe4abd8b756a533'>refs</a><a href='/AGH-engineering-thesis/log/tests/master_arbiter/operations1.memv'>log</a><a href='/AGH-engineering-thesis/tree/tests/master_arbiter/operations1.memv?id=b44a3a201ee2b524f31aa93abfe4abd8b756a533'>tree</a><a href='/AGH-engineering-thesis/commit/tests/master_arbiter/operations1.memv?id=b44a3a201ee2b524f31aa93abfe4abd8b756a533'>commit</a><a class='active' href='/AGH-engineering-thesis/diff/tests/master_arbiter/operations1.memv?id=b44a3a201ee2b524f31aa93abfe4abd8b756a533&amp;id2=8999a1a82eddb97fa2d4aa7de12e88a3205d0e3d'>diff</a></td><td class='form'><form class='right' method='get' action='/AGH-engineering-thesis/log/tests/master_arbiter/operations1.memv'>
<input type='hidden' name='id' value='b44a3a201ee2b524f31aa93abfe4abd8b756a533'/><input type='hidden' name='id2' value='8999a1a82eddb97fa2d4aa7de12e88a3205d0e3d'/><select name='qt'>
<option value='grep'>log msg</option>
<option value='author'>author</option>
<option value='committer'>committer</option>
<option value='range'>range</option>
</select>
<input class='txt' type='search' size='10' name='q' value=''/>
<input type='submit' value='search'/>
</form>
</td></tr></table>
<div class='path'>path: <a href='/AGH-engineering-thesis/diff/?id=b44a3a201ee2b524f31aa93abfe4abd8b756a533&amp;id2=8999a1a82eddb97fa2d4aa7de12e88a3205d0e3d'>root</a>/<a href='/AGH-engineering-thesis/diff/tests?id=b44a3a201ee2b524f31aa93abfe4abd8b756a533&amp;id2=8999a1a82eddb97fa2d4aa7de12e88a3205d0e3d'>tests</a>/<a href='/AGH-engineering-thesis/diff/tests/master_arbiter?id=b44a3a201ee2b524f31aa93abfe4abd8b756a533&amp;id2=8999a1a82eddb97fa2d4aa7de12e88a3205d0e3d'>master_arbiter</a>/<a href='/AGH-engineering-thesis/diff/tests/master_arbiter/operations1.memv?id=b44a3a201ee2b524f31aa93abfe4abd8b756a533&amp;id2=8999a1a82eddb97fa2d4aa7de12e88a3205d0e3d'>operations1.memv</a></div><div class='content'><div class='cgit-panel'><b>diff options</b><form method='get'><input type='hidden' name='id' value='b44a3a201ee2b524f31aa93abfe4abd8b756a533'/><input type='hidden' name='id2' value='8999a1a82eddb97fa2d4aa7de12e88a3205d0e3d'/><table><tr><td colspan='2'/></tr><tr><td class='label'>context:</td><td class='ctrl'><select name='context' onchange='this.form.submit();'><option value='1'>1</option><option value='2'>2</option><option value='3' selected='selected'>3</option><option value='4'>4</option><option value='5'>5</option><option value='6'>6</option><option value='7'>7</option><option value='8'>8</option><option value='9'>9</option><option value='10'>10</option><option value='15'>15</option><option value='20'>20</option><option value='25'>25</option><option value='30'>30</option><option value='35'>35</option><option value='40'>40</option></select></td></tr><tr><td class='label'>space:</td><td class='ctrl'><select name='ignorews' onchange='this.form.submit();'><option value='0' selected='selected'>include</option><option value='1'>ignore</option></select></td></tr><tr><td class='label'>mode:</td><td class='ctrl'><select name='dt' onchange='this.form.submit();'><option value='0' selected='selected'>unified</option><option value='1'>ssdiff</option><option value='2'>stat only</option></select></td></tr><tr><td/><td class='ctrl'><noscript><input type='submit' value='reload'/></noscript></td></tr></table></form></div><div class='diffstat-header'><a href='/AGH-engineering-thesis/diff/?id=b44a3a201ee2b524f31aa93abfe4abd8b756a533&amp;id2=8999a1a82eddb97fa2d4aa7de12e88a3205d0e3d'>Diffstat</a> (limited to 'tests/master_arbiter/operations1.memv')</div><table summary='diffstat' class='diffstat'></table><div class='diffstat-summary'>0 files changed, 0 insertions, 0 deletions</div><table summary='diff' class='diff'><tr><td></td></tr></table></div> <!-- class=content -->
                         <div class=footer>generated by
                             <a href="https://git.zx2c4.com/cgit/about/">
                                 cgit
                             </a>
                         </div>
                        </div> <!-- id=cgit -->
</body>
</html>
nput-file (package-file previous-version)
                       read))
                (new (fold-packages (lambda (p r)
                                      (alist-cons (package-name p) (package-version p)
                                                  r))
                                    '())))
           (call-with-output-file (package-file new-version)
             (lambda (port)
               (pretty-print new port)))

           (write-packages-added news-file old new)
           (write-packages-updates news-file old new)))))
    (x
     (format (current-error-port) "Usage: update-NEWS NEWS-FILE DATA-DIRECTORY

Update the list of new and updated packages in NEWS-FILE using the
previous-version package list from DATA-DIRECTORY.\n")
     (exit 1))))

(apply main (cdr (command-line)))