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1 | ;;; GNU Guix --- Functional package management for GNU |
2 | ;;; Copyright © 2015 Alex Kost <alezost@gmail.com> | |
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 | ;;; Generate AUTHORS file for directory with the Guix git repository. | |
21 | ;;; | |
22 | ||
23 | (use-modules | |
24 | (ice-9 popen) | |
25 | (ice-9 rdelim) | |
26 | (ice-9 match) | |
27 | (srfi srfi-1) | |
28 | (guix config) | |
29 | (guix utils) | |
30 | (guix build utils)) | |
31 | ||
32 | (define %guix-dir | |
33 | (make-parameter #f)) | |
34 | ||
35 | (define-syntax-rule (append-maybe init-lst (test add-lst) ...) | |
36 | (let* ((lst init-lst) | |
37 | (lst (if test | |
38 | (append lst add-lst) | |
39 | lst)) | |
40 | ...) | |
41 | lst)) | |
42 | ||
43 | (define (command-output cmd . args) | |
44 | "Execute CMD with ARGS and return its output without trailing newspace." | |
45 | (let* ((port (apply open-pipe* OPEN_READ cmd args)) | |
46 | (output (read-string port))) | |
47 | (close-port port) | |
48 | (string-trim-right output #\newline))) | |
49 | ||
50 | (define (git-output . args) | |
51 | "Execute git command with ARGS and return its output without trailing | |
52 | newspace." | |
53 | (with-directory-excursion (%guix-dir) | |
54 | (apply command-output "git" args))) | |
55 | ||
56 | (define* (contributors-string #:optional (range "HEAD")) | |
57 | "Return a string with names of people contributed to commit RANGE." | |
58 | (git-output "shortlog" "--numbered" "--summary" "--email" range)) | |
59 | ||
60 | (define* (tags #:key pattern sort) | |
61 | "Return a list of the git repository tags. | |
62 | PATTERN is passed to '--list' and SORT is passed to '--sort' options of | |
63 | 'git tag' command." | |
64 | (let* ((args (append-maybe | |
65 | '("tag") | |
66 | (pattern (list "--list" pattern)) | |
67 | (sort (list "--sort" sort)))) | |
68 | (output (apply git-output args))) | |
69 | (string-split output #\newline))) | |
70 | ||
71 | (define (version-tags) | |
72 | "Return only version tags (v0.8, etc.) sorted from the biggest version | |
73 | to the smallest one." | |
74 | (tags #:pattern "v*" | |
75 | #:sort "-version:refname")) | |
76 | ||
77 | (define (generate-authors-file file) | |
78 | "Generate authors FILE." | |
79 | (define previous-release-tag | |
80 | (find (lambda (tag) | |
81 | (version>? %guix-version | |
82 | (substring tag 1))) ; remove leading 'v' | |
83 | (version-tags))) | |
84 | ||
85 | (define release-range | |
86 | (string-append previous-release-tag "..HEAD")) | |
87 | ||
88 | (with-output-to-file file | |
89 | (lambda () | |
90 | (display "\ | |
91 | GNU Guix consists of Scheme code that implements the deployment model | |
92 | of the Nix package management tool. In fact, it currently talks to a | |
93 | build daemon whose code comes from Nix (see the manual for details.) | |
94 | ||
95 | Nix was initially written by Eelco Dolstra; other people have been | |
96 | contributing to it. See `nix/AUTHORS' for details.\n\n") | |
97 | (format #t "Contributors to GNU Guix ~a:\n\n" | |
98 | %guix-version) | |
99 | (display (contributors-string release-range)) | |
100 | (newline) (newline) | |
101 | (display "Overall contributors:\n\n") | |
102 | (display (contributors-string)) | |
103 | (newline)))) | |
104 | ||
105 | (define (show-help) | |
106 | (match (command-line) | |
107 | ((me _ ...) | |
108 | (format #t "Usage: guile ~a DIRECTORY AUTHORS | |
109 | Generate AUTHORS file for DIRECTORY with the Guix git repository.\n" | |
110 | me)))) | |
111 | ||
112 | (match (command-line) | |
113 | ((_ guix-dir authors-file) | |
114 | (parameterize ((%guix-dir guix-dir)) | |
115 | (generate-authors-file authors-file))) | |
116 | (_ | |
117 | (show-help) | |
118 | (exit 1))) | |
119 | ||
120 | ;;; generate-authors.scm ends here |