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1 | ;;; GNU Guix --- Functional package management for GNU |
2 | ;;; Copyright © 2020 Ludovic Courtès <ludo@gnu.org> | |
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 | ;;; | |
20 | ;;; Validate 'etc/news.scm'. | |
21 | ;;; | |
22 | ||
23 | (use-modules (git) | |
24 | (guix git) | |
25 | (guix ui) | |
26 | (guix channels) | |
27 | (srfi srfi-26) | |
28 | (ice-9 match)) | |
29 | ||
30 | ;; XXX: These two things are currently private. | |
31 | (define read-channel-news (@@ (guix channels) read-channel-news)) | |
32 | (define channel-news-entries (cut struct-ref <> 0)) | |
33 | ||
34 | (define (all-the-news directory) | |
35 | "Return the <channel-news> read from DIRECTORY, a checkout of the 'guix' | |
36 | channel." | |
37 | (call-with-input-file (string-append directory "/etc/news.scm") | |
38 | read-channel-news)) | |
39 | ||
40 | (define (validate-texinfo str type language) | |
41 | "Parse STR as a Texinfo fragment and raise an error if that fails." | |
42 | (catch #t | |
43 | (lambda () | |
44 | (texi->plain-text str)) | |
45 | (lambda (key . args) | |
46 | (print-exception (current-error-port) #f key args) | |
47 | (report-error (G_ "the Texinfo snippet below is invalid (~a, ~a):~%") | |
48 | type language) | |
49 | (display str (current-error-port)) | |
50 | (exit 1)))) | |
51 | ||
52 | (define (validate-news-entry repository entry) | |
53 | "Validate ENTRY, a <channel-news-entry>, making sure it refers to an | |
54 | existent commit of REPOSITORY and contains only valid Texinfo." | |
55 | (catch 'git-error | |
56 | (lambda () | |
57 | (let ((commit (commit-lookup repository | |
58 | (string->oid | |
59 | (channel-news-entry-commit entry))))) | |
60 | (for-each (match-lambda | |
61 | ((language . title) | |
62 | (validate-texinfo title 'title language))) | |
63 | (channel-news-entry-title entry)) | |
64 | (for-each (match-lambda | |
65 | ((language . body) | |
66 | (validate-texinfo body 'body language))) | |
67 | (channel-news-entry-body entry)))) | |
68 | (lambda (key error . rest) | |
69 | (if (= GIT_ENOTFOUND (git-error-code error)) | |
70 | (leave (G_ "commit '~a' of entry '~a' does not exist~%") | |
71 | (channel-news-entry-commit entry) | |
72 | (channel-news-entry-title entry)) | |
73 | (apply throw key error rest))))) | |
74 | ||
75 | (let* ((this-directory (dirname (current-filename))) | |
76 | (top-directory (string-append this-directory "/..")) | |
77 | (entries (channel-news-entries (all-the-news top-directory)))) | |
78 | (with-repository top-directory repository | |
79 | (for-each (cut validate-news-entry repository <>) | |
80 | entries) | |
81 | (info (G_ "All ~a channel news entries are valid.~%") | |
82 | (length entries)))) |