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920803fb | 1 | ;;; GNU Guix --- Functional package management for GNU |
996ecaf6 | 2 | ;;; Copyright © 2017, 2018, 2019 Ludovic Courtès <ludo@gnu.org> |
920803fb LC |
3 | ;;; |
4 | ;;; This file is part of GNU Guix. | |
5 | ;;; | |
6 | ;;; GNU Guix is free software; you can redistribute it and/or modify it | |
7 | ;;; under the terms of the GNU General Public License as published by | |
8 | ;;; the Free Software Foundation; either version 3 of the License, or (at | |
9 | ;;; your option) any later version. | |
10 | ;;; | |
11 | ;;; GNU Guix is distributed in the hope that it will be useful, but | |
12 | ;;; WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | ;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | ;;; GNU General Public License for more details. | |
15 | ;;; | |
16 | ;;; You should have received a copy of the GNU General Public License | |
17 | ;;; along with GNU Guix. If not, see <http://www.gnu.org/licenses/>. | |
18 | ||
19 | ;;; Commentary: | |
20 | ;;; | |
21 | ;;; This script updates the list of new and updated packages in 'NEWS'. | |
22 | ;;; | |
23 | ;;; Code: | |
24 | ||
25 | (use-modules (gnu) (guix) | |
26 | (guix build utils) | |
27 | ((guix ui) #:select (fill-paragraph)) | |
28 | (srfi srfi-1) | |
29 | (srfi srfi-11) | |
30 | (ice-9 match) | |
31 | (ice-9 rdelim) | |
32 | (ice-9 regex) | |
e3c03952 | 33 | (ice-9 vlist) |
920803fb LC |
34 | (ice-9 pretty-print)) |
35 | ||
36 | (define %header-rx | |
37 | (make-regexp "^\\* Changes in (version )?([0-9.]+) \\(since ([0-9.]+)\\)")) | |
38 | ||
39 | (define (NEWS->versions port) | |
40 | "Return two values: the previous version and the current version as read | |
41 | from PORT, which is an input port on the 'NEWS' file." | |
42 | (let loop () | |
43 | (let ((line (read-line port))) | |
44 | (cond ((eof-object? line) | |
45 | (error "failed to determine previous and current version" | |
46 | port)) | |
47 | ((regexp-exec %header-rx line) | |
48 | => | |
49 | (lambda (match) | |
50 | (values (match:substring match 3) | |
51 | (match:substring match 2)))) | |
52 | (else | |
53 | (loop)))))) | |
54 | ||
55 | (define (skip-to-org-heading port) | |
56 | "Read from PORT until an Org heading is found." | |
57 | (let loop () | |
58 | (let ((next (peek-char port))) | |
59 | (cond ((eqv? next #\*) | |
60 | #t) | |
61 | ((eof-object? next) | |
62 | (error "next heading could not be found")) | |
63 | (else | |
64 | (read-line port) | |
65 | (loop)))))) | |
66 | ||
67 | (define (rewrite-org-section input output heading-rx proc) | |
68 | "Write to OUTPUT the text read from INPUT, but with the first Org section | |
69 | matching HEADING-RX replaced by NEW-HEADING and CONTENTS." | |
70 | (let loop () | |
71 | (let ((line (read-line input))) | |
72 | (cond ((eof-object? line) | |
73 | (error "failed to match heading regexp" heading-rx)) | |
74 | ((regexp-exec heading-rx line) | |
75 | => | |
76 | (lambda (match) | |
77 | (proc match output) | |
78 | (skip-to-org-heading input) | |
79 | (dump-port input output) | |
80 | #t)) | |
81 | (else | |
82 | (display line output) | |
83 | (newline output) | |
84 | (loop)))))) | |
85 | ||
86 | (define (enumeration->paragraph lst) | |
87 | "Turn LST, a list of strings, into a single string that is a ready-to-print | |
88 | paragraph." | |
89 | (fill-paragraph (string-join (sort lst string<?) ", ") | |
90 | 75)) | |
91 | ||
92 | (define (write-packages-added news-file old new) | |
93 | "Write to NEWS-FILE the list of packages added between OLD and NEW." | |
94 | (let ((added (lset-difference string=? (map car new) (map car old)))) | |
95 | (with-atomic-file-replacement news-file | |
96 | (lambda (input output) | |
97 | (rewrite-org-section input output | |
98 | (make-regexp "^(\\*+) (.*) new packages") | |
99 | (lambda (match port) | |
100 | (let ((stars (match:substring match 1))) | |
101 | (format port | |
e3c03952 LC |
102 | "~a ~a new packages~%~%" |
103 | stars (length added))))))))) | |
920803fb LC |
104 | |
105 | (define (write-packages-updates news-file old new) | |
106 | "Write to NEWS-FILE the list of packages upgraded between OLD and NEW." | |
e3c03952 | 107 | (define important |
996ecaf6 | 108 | '("gcc-toolchain" "glibc" "binutils" "gdb" ;toolchain |
e3c03952 LC |
109 | "shepherd" "linux-libre" "xorg-server" "cups" ;OS |
110 | "gnome" "xfce" "enlightenment" "lxde" "mate" ;desktop env. | |
111 | "guile" "bash" "python" "python2" "perl" ;languages | |
112 | "ghc" "rust" "go" "julia" "r" "ocaml" | |
113 | "icedtea" "openjdk" "clojure" "sbcl" "racket" | |
114 | "emacs" "gimp" "inkscape" "libreoffice" ;applications | |
115 | "octave" "icecat" "gnupg")) | |
116 | ||
117 | (let* ((table (fold (lambda (package table) | |
118 | (match package | |
119 | ((name . version) | |
120 | (vhash-cons name version table)))) | |
121 | vlist-null | |
122 | new)) | |
123 | (latest (lambda (name) | |
124 | (let ((versions (vhash-fold* cons '() name table))) | |
125 | (match (sort versions version>?) | |
126 | ((latest . _) latest))))) | |
127 | (upgraded (filter-map (match-lambda | |
128 | ((package . new-version) | |
129 | (match (assoc package old) | |
130 | ((_ . old-version) | |
131 | (and (string=? new-version | |
132 | (latest package)) | |
133 | (version>? new-version old-version) | |
134 | (cons package new-version))) | |
135 | (_ #f)))) | |
136 | new)) | |
137 | (noteworthy (filter (match-lambda | |
138 | ((package . version) | |
139 | (member package important))) | |
140 | upgraded))) | |
920803fb LC |
141 | (with-atomic-file-replacement news-file |
142 | (lambda (input output) | |
143 | (rewrite-org-section input output | |
144 | (make-regexp "^(\\*+) (.*) package updates") | |
145 | (lambda (match port) | |
e3c03952 LC |
146 | (let ((stars (match:substring match 1)) |
147 | (lst (map (match-lambda | |
148 | ((package . version) | |
149 | (string-append package " " | |
150 | version))) | |
151 | noteworthy))) | |
920803fb | 152 | (format port |
e3c03952 | 153 | "~a ~a package updates~%~%Noteworthy updates:~%~a~%~%" |
920803fb | 154 | stars (length upgraded) |
e3c03952 | 155 | (enumeration->paragraph lst))))))))) |
920803fb LC |
156 | |
157 | \f | |
158 | (define (main . args) | |
159 | (match args | |
160 | ((news-file data-directory) | |
fe634eaf LC |
161 | ;; Don't browse things listed in the user's $GUIX_PACKAGE_PATH and |
162 | ;; in external channels. | |
920803fb | 163 | (parameterize ((%package-module-path |
fe634eaf | 164 | %default-package-module-path)) |
920803fb LC |
165 | (define (package-file version) |
166 | (string-append data-directory "/packages-" | |
167 | version ".txt")) | |
168 | ||
169 | (let-values (((previous-version new-version) | |
170 | (call-with-input-file news-file NEWS->versions))) | |
e3c03952 LC |
171 | (format (current-error-port) "Updating NEWS for ~a to ~a...~%" |
172 | previous-version new-version) | |
920803fb LC |
173 | (let* ((old (call-with-input-file (package-file previous-version) |
174 | read)) | |
175 | (new (fold-packages (lambda (p r) | |
176 | (alist-cons (package-name p) (package-version p) | |
177 | r)) | |
178 | '()))) | |
179 | (call-with-output-file (package-file new-version) | |
180 | (lambda (port) | |
181 | (pretty-print new port))) | |
182 | ||
183 | (write-packages-added news-file old new) | |
184 | (write-packages-updates news-file old new))))) | |
185 | (x | |
186 | (format (current-error-port) "Usage: update-NEWS NEWS-FILE DATA-DIRECTORY | |
187 | ||
188 | Update the list of new and updated packages in NEWS-FILE using the | |
189 | previous-version package list from DATA-DIRECTORY.\n") | |
190 | (exit 1)))) | |
191 | ||
192 | (apply main (cdr (command-line))) |