121 lines
3.8 KiB
Scheme
121 lines
3.8 KiB
Scheme
;;; GNU Guix --- Functional package management for GNU
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;;; Copyright © 2015 Alex Kost <alezost@gmail.com>
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;;;
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;;; This file is part of GNU Guix.
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;;;
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;;; GNU Guix is free software; you can redistribute it and/or modify it
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;;; under the terms of the GNU General Public License as published by
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;;; the Free Software Foundation; either version 3 of the License, or (at
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;;; your option) any later version.
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;;;
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;;; GNU Guix is distributed in the hope that it will be useful, but
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;;; WITHOUT ANY WARRANTY; without even the implied warranty of
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;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;;; GNU General Public License for more details.
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;;;
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;;; You should have received a copy of the GNU General Public License
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;;; along with GNU Guix. If not, see <http://www.gnu.org/licenses/>.
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;;;
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;;; Generate AUTHORS file for directory with the Guix git repository.
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;;;
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(use-modules
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(ice-9 popen)
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(ice-9 rdelim)
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(ice-9 match)
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(srfi srfi-1)
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(guix config)
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(guix utils)
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(guix build utils))
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(define %guix-dir
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(make-parameter #f))
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(define-syntax-rule (append-maybe init-lst (test add-lst) ...)
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(let* ((lst init-lst)
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(lst (if test
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(append lst add-lst)
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lst))
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...)
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lst))
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(define (command-output cmd . args)
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"Execute CMD with ARGS and return its output without trailing newspace."
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(let* ((port (apply open-pipe* OPEN_READ cmd args))
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(output (read-string port)))
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(close-port port)
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(string-trim-right output #\newline)))
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(define (git-output . args)
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"Execute git command with ARGS and return its output without trailing
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newspace."
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(with-directory-excursion (%guix-dir)
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(apply command-output "git" args)))
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(define* (contributors-string #:optional (range "HEAD"))
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"Return a string with names of people contributed to commit RANGE."
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(git-output "shortlog" "--numbered" "--summary" "--email" range))
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(define* (tags #:key pattern sort)
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"Return a list of the git repository tags.
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PATTERN is passed to '--list' and SORT is passed to '--sort' options of
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'git tag' command."
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(let* ((args (append-maybe
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'("tag")
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(pattern (list "--list" pattern))
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(sort (list "--sort" sort))))
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(output (apply git-output args)))
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(string-split output #\newline)))
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(define (version-tags)
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"Return only version tags (v0.8, etc.) sorted from the biggest version
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to the smallest one."
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(tags #:pattern "v*"
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#:sort "-version:refname"))
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(define (generate-authors-file file)
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"Generate authors FILE."
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(define previous-release-tag
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(find (lambda (tag)
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(version>? %guix-version
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(substring tag 1))) ; remove leading 'v'
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(version-tags)))
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(define release-range
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(string-append previous-release-tag "..HEAD"))
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(with-output-to-file file
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(lambda ()
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(display "\
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GNU Guix consists of Scheme code that implements the deployment model
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of the Nix package management tool. In fact, it currently talks to a
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build daemon whose code comes from Nix (see the manual for details.)
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Nix was initially written by Eelco Dolstra; other people have been
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contributing to it. See `nix/AUTHORS' for details.\n\n")
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(format #t "Contributors to GNU Guix ~a:\n\n"
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%guix-version)
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(display (contributors-string release-range))
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(newline) (newline)
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(display "Overall contributors:\n\n")
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(display (contributors-string))
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(newline))))
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(define (show-help)
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(match (command-line)
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((me _ ...)
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(format #t "Usage: guile ~a DIRECTORY AUTHORS
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Generate AUTHORS file for DIRECTORY with the Guix git repository.\n"
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me))))
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(match (command-line)
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((_ guix-dir authors-file)
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(parameterize ((%guix-dir guix-dir))
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(generate-authors-file authors-file)))
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(_
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(show-help)
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(exit 1)))
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;;; generate-authors.scm ends here
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