From 467e874a86dc3dd83fe10e5610823c011de6565a Mon Sep 17 00:00:00 2001
From: Maxime Devos <maximedevos@telenet.be>
Date: Tue, 10 Aug 2021 17:07:20 +0200
Subject: guix: Add ContentDB importer.

* guix/import/contentdb.scm: New file.
* guix/scripts/import/contentdb.scm: New file.
* tests/contentdb.scm: New file.
* Makefile.am (MODULES, SCM_TESTS): Register them.
* po/guix/POTFILES.in: Likewise.
* doc/guix.texi (Invoking guix import): Document it.

Signed-off-by: Leo Prikler <leo.prikler@student.tugraz.at>
---
 guix/scripts/import/minetest.scm | 117 +++++++++++++++++++++++++++++++++++++++
 1 file changed, 117 insertions(+)
 create mode 100644 guix/scripts/import/minetest.scm

(limited to 'guix/scripts/import')

diff --git a/guix/scripts/import/minetest.scm b/guix/scripts/import/minetest.scm
new file mode 100644
index 0000000000..5f204d90fc
--- /dev/null
+++ b/guix/scripts/import/minetest.scm
@@ -0,0 +1,117 @@
+;;; GNU Guix --- Functional package management for GNU
+;;; Copyright © 2014 David Thompson <davet@gnu.org>
+;;; Copyright © 2018 Ricardo Wurmus <rekado@elephly.net>
+;;; Copyright © 2021 Maxime Devos <maximedevos@telenet.be>
+;;;
+;;; 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 (guix scripts import minetest)
+  #:use-module (guix ui)
+  #:use-module (guix utils)
+  #:use-module (guix scripts)
+  #:use-module (guix import minetest)
+  #:use-module (guix import utils)
+  #:use-module (guix scripts import)
+  #:use-module (srfi srfi-1)
+  #:use-module (srfi srfi-11)
+  #:use-module (srfi srfi-37)
+  #:use-module (ice-9 match)
+  #:use-module (ice-9 format)
+  #:export (guix-import-minetest))
+
+
+;;;
+;;; Command-line options.
+;;;
+
+(define %default-options
+  `((sort . ,%default-sort-key)))
+
+(define (show-help)
+  (display (G_ "Usage: guix import minetest AUTHOR/NAME
+Import and convert the Minetest mod NAME by AUTHOR from ContentDB.\n"))
+  (display (G_ "
+  -h, --help             display this help and exit"))
+  (display (G_ "
+  -r, --recursive        import packages recursively"))
+  (display (G_ "
+  -V, --version          display version information and exit"))
+  (display (G_ "
+      --sort=KEY         when choosing between multiple implementations,
+                         choose the one with the highest value for KEY
+                         (one of \"score\" (standard) or \"downloads\")"))
+  (newline)
+  (show-bug-report-information))
+
+(define (verify-sort-order sort)
+  "Verify SORT can be used to sort mods by."
+  (unless (member sort '("score" "downloads" "reviews"))
+    (leave (G_ "~a: not a valid key to sort by~%") sort))
+  sort)
+
+(define %options
+  ;; Specification of the command-line options.
+  (cons* (option '(#\h "help") #f #f
+                 (lambda args
+                   (show-help)
+                   (exit 0)))
+         (option '(#\V "version") #f #f
+                 (lambda args
+                   (show-version-and-exit "guix import minetest")))
+         (option '(#\r "recursive") #f #f
+                 (lambda (opt name arg result)
+                   (alist-cons 'recursive #t result)))
+         (option '("sort") #t #f
+                 (lambda (opt name arg result)
+                   (alist-cons 'sort (verify-sort-order arg) result)))
+         %standard-import-options))
+
+
+;;;
+;;; Entry point.
+;;;
+
+(define (guix-import-minetest . args)
+  (define (parse-options)
+    ;; Return the alist of option values.
+    (args-fold* args %options
+                (lambda (opt name arg result)
+                  (leave (G_ "~A: unrecognized option~%") name))
+                (lambda (arg result)
+                  (alist-cons 'argument arg result))
+                %default-options))
+
+  (let* ((opts (parse-options))
+         (args (filter-map (match-lambda
+                            (('argument . value)
+                             value)
+                            (_ #f))
+                           (reverse opts))))
+    (match args
+      ((name)
+       (with-error-handling
+         (let* ((sort (assoc-ref opts 'sort))
+                (author/name (elaborate-contentdb-name name #:sort sort)))
+           (if (assoc-ref opts 'recursive)
+               ;; Recursive import
+               (filter-map package->definition
+                           (minetest-recursive-import author/name #:sort sort))
+               ;; Single import
+               (minetest->guix-package author/name #:sort sort)))))
+      (()
+       (leave (G_ "too few arguments~%")))
+      ((many ...)
+       (leave (G_ "too many arguments~%"))))))
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