| 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 |