;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2013, 2014, 2015, 2017 Ludovic Courtès <ludo@gnu.org>
;;; Copyright © 2013 Andreas Enge <andreas@enge.fr>
;;; Copyright © 2016 Leo Famulari <leo@famulari.name>
;;; Copyright © 2019 Mathieu Othacehe <m.othacehe@gmail.com>
;;; Copyright © 2022 Marius Bakke <marius@gnu.org>
;;;
;;; This file is part of GNU Guix.
;;;
;;; GNU Guix is free software; you can redistribute it and/or modify it
;;; under the terms of the GNU General Public License as published by
;;; the Free Software Foundation; either version 3 of the License, or (at
;;; your option) any later version.
;;;
;;; GNU Guix is distributed in the hope that it will be useful, but
;;; WITHOUT ANY WARRANTY; without even the implied warranty of
;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
;;; GNU General Public License for more details.
;;;
;;; You should have received a copy of the GNU General Public License
;;; along with GNU Guix.  If not, see <http://www.gnu.org/licenses/>.

(define-module (gnu packages cyrus-sasl)
  #:use-module (gnu packages)
  #:use-module (gnu packages autotools)
  #:use-module (gnu packages dbm)
  #:use-module (gnu packages kerberos)
  #:use-module (gnu packages tls)
  #:use-module ((guix licenses) #:prefix license:)
  #:use-module (guix gexp)
  #:use-module (guix packages)
  #:use-module (guix download)
  #:use-module (guix build-system gnu))

(define-public cyrus-sasl
  (package
    (name "cyrus-sasl")
    (version "2.1.28")
    (source (origin
              (method url-fetch)
              (uri (string-append "https://github.com/cyrusimap/cyrus-sasl"
                                  "/releases/download/cyrus-sasl-" version
                                  "/cyrus-sasl-" version ".tar.gz"))
              (sha256
               (base32
                "135kbgyfpa1mwqp5dm223yr6ddzi4vjm7cr414d7rmhys2mwdkvw"))))
    (build-system gnu-build-system)
    (inputs (list gdbm mit-krb5 openssl))
    (arguments
     (list
      #:configure-flags #~(list (string-append "--with-plugindir="
                                               (assoc-ref %outputs "out")
                                               "/lib/sasl2")
                                ;; When cross-compiling the build system is
                                ;; unable to determine whether SPNEGO is
                                ;; supported; Kerberos does, so enable it.
                                #$@(if (%current-target-system)
                                       '("ac_cv_gssapi_supports_spnego=yes")
                                       '()))

      ;; The 'plugins' directory has shared source files, such as
      ;; 'plugin_common.c'.  When building the shared libraries there, libtool
      ;; ends up doing "ln -s plugin_common.lo plugin_common.o", which can
      ;; fail with EEXIST when building things in parallel.
      #:parallel-build? #f))
    (synopsis "Simple Authentication Security Layer implementation")
    (description
     "SASL (Simple Authentication Security Layer) is an Internet
standards-track method for remote computers to authenticate.  The Cyrus SASL
library makes supporting various SASL mechanisms easy for both client and
server writers.")
    (license (license:non-copyleft "file://COPYING"
                                   "See COPYING in the distribution."))
    (home-page "https://cyrusimap.org/sasl/")))
))
    (close-port port)
    (string-trim-right output #\newline)))

(define (git-output . args)
  &quot;Execute git command with ARGS and return its output without trailing
newspace.&quot;
  (with-directory-excursion (%guix-dir)
    (apply command-output &quot;git&quot; args)))

(define* (contributors-string #:optional (range &quot;HEAD&quot;))
  &quot;Return a string with names of people contributed to commit RANGE.&quot;
  (git-output &quot;shortlog&quot; &quot;--numbered&quot; &quot;--summary&quot; &quot;--email&quot; range))

(define* (tags #:key pattern sort)
  &quot;Return a list of the git repository tags.
PATTERN is passed to &apos;--list&apos; and SORT is passed to &apos;--sort&apos; options of
&apos;git tag&apos; command.&quot;
  (let* ((args (append-maybe
                &apos;(&quot;tag&quot;)
                (pattern (list &quot;--list&quot; pattern))
                (sort    (list &quot;--sort&quot; sort))))
         (output (apply git-output args)))
    (string-split output #\newline)))

(define (version-tags)
  &quot;Return only version tags (v0.8, etc.) sorted from the biggest version
to the smallest one.&quot;
  (tags #:pattern &quot;v*&quot;
        #:sort &quot;-version:refname&quot;))

(define (generate-authors-file file)
  &quot;Generate authors FILE.&quot;
  (define previous-release-tag
    (find (lambda (tag)
            (version&gt;? %guix-version
                       (substring tag 1))) ; remove leading &apos;v&apos;
          (version-tags)))

  (define release-range
    (string-append previous-release-tag &quot;..HEAD&quot;))

  (with-output-to-file file
    (lambda ()
      (display &quot;\
GNU Guix consists of Scheme code that implements the deployment model
of the Nix package management tool.  In fact, it currently talks to a
build daemon whose code comes from Nix (see the manual for details.)

Nix was initially written by Eelco Dolstra; other people have been
contributing to it.  See `nix/AUTHORS&apos; for details.\n\n&quot;)
      (format #t &quot;Contributors to GNU Guix ~a:\n\n&quot;
              %guix-version)
      (display (contributors-string release-range))
      (newline) (newline)
      (display &quot;Overall contributors:\n\n&quot;)
      (display (contributors-string))
      (newline))))

(define (show-help)
  (match (command-line)
    ((me _ ...)
     (format #t &quot;Usage: guile ~a DIRECTORY AUTHORS
Generate AUTHORS file for DIRECTORY with the Guix git repository.\n&quot;
             me))))

(match (command-line)
  ((_ guix-dir authors-file)
   (parameterize ((%guix-dir guix-dir))
     (generate-authors-file authors-file)))
  (_
   (show-help)
   (exit 1)))

;;; generate-authors.scm ends here
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