;;; 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/>.
;;; Com| 2015-07-04 | Clean up 'THANKS' and 'AUTHORS'....* THANKS: Add Konrad Hinsen, Cyprien Nicolas, Yakkala Yagnesh Raghava
and Alexander Shendi. Remove Federico Beffa, Marek Benc, John
Darrington, rekado, Cyrill Schenkel and Andy Wingo because they are
placed in AUTHORS. Move Amirouche Boubekki and Alex Kost to ...
* AUTHORS: ... here. Add Arne Babenhauserheide, Ian Denhardt, Kevin
Lemonnier, Mathieu Lirzin, Pierre-Antoine Rault and Ben Woodcroft.
Fix some names and emails.
| Alex Kost |
| 2015-06-27 | Add Claes Wallin to 'AUTHORS'. | Alex Kost |
r-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 heading regexp" heading-rx))
((regexp-exec heading-rx line)
=>
(lambda (match)
(proc match output)
(skip-to-org-heading input)
(dump-port input output)
#t))
(else
(display line output)
(newline output)
(loop))))))
(define (enumeration->paragraph lst)
"Turn LST, a list of strings, into a single string that is a ready-to-print
paragraph."
(fill-paragraph (string-join (sort lst string<?) ", ")
75))
(define (write-packages-added news-file old new)
"Write to NEWS-FILE the list of packages added between OLD and NEW."
(let ((added (lset-difference string=? (map car new) (map car old))))
(with-atomic-file-replacement news-file
(lambda (input output)
(rewrite-org-section input output
(make-regexp "^(\\*+).*new packages")
(lambda (match port)
(let ((stars (match:substring match 1)))
(format port
"~a ~a new packages~%~%"
stars (length added)))))))))
(define (write-packages-updates news-file old new)
"Write to NEWS-FILE the list of packages upgraded between OLD and NEW."
(define important
'("gcc-toolchain" "glibc" "binutils" "gdb" ;toolchain
"shepherd" "linux-libre" "xorg-server" "cups" ;OS
"gnome" "xfce" "enlightenment" "lxde" "mate" ;desktop env.
"guile" "bash" "python" "python2" "perl" ;languages
"ghc" "rust" "go" "julia" "r" "ocaml"
"icedtea" "openjdk" "clojure" "sbcl" "racket"
"emacs" "gimp" "inkscape" "libreoffice" ;applications
"octave" "icecat" "gnupg"))
(let* ((table (fold (lambda (package table)
(match package
((name . version)
(vhash-cons name version table))))
vlist-null
new))
(latest (lambda (name)
(let ((versions (vhash-fold* cons '() name table)))
(match (sort versions version>?)
((latest . _) latest)))))
(upgraded (filter-map (match-lambda
((package . new-version)
(match (assoc package old)
((_ . old-version)
(and (string=? new-version
(latest package))
(version>? new-version old-version)
(cons package new-version)))
(_ #f))))
new))
(noteworthy (filter (match-lambda
((package . version)
(member package important)))
upgraded)))
(with-atomic-file-replacement news-file
(lambda (input output)
(rewrite-org-section input output
(make-regexp "^(\\*+).*package updates")
(lambda (match port)
(let ((stars (match:substring match 1))
(lst (map (match-lambda
((package . version)
(string-append package " "
version)))
noteworthy)))
(format port
"~a ~a package updates~%~%Noteworthy updates:~%~a~%~%"
stars (length upgraded)
(enumeration->paragraph lst)))))))))
(define (main . args)
(match args
((news-file data-directory)
;; Don't browse things listed in the user's $GUIX_PACKAGE_PATH and
;; in external channels.
(parameterize ((%package-module-path
%default-package-module-path))
(define (package-file version)
(string-append data-directory "/packages-"
version ".txt"))
(define (package<? p1 p2)
(string<? (package-full-name p1) (package-full-name p2)))
(let-values (((previous-version new-version)
(call-with-input-file news-file NEWS->versions)))
(format (current-error-port) "Updating NEWS for ~a to ~a...~%"
previous-version new-version)
(let* ((old (call-with-input-file (package-file previous-version)
read))
(all-packages/sorted (sort (fold-packages (lambda (p r)
(cons p r))
'())
package<?))
(new (map (lambda (p)
(cons (package-name p) (package-version p)))
all-packages/sorted)))
(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)))
