Add an AppStream-conforming metadata file

.gitattributes

@@ -1,7 +1,9 @@
 Makefile.am			ident
 /configure.ac			ident
 /build-aux/bootstrap		ident
+/build-aux/msgfmt-appdata	ident
 /build-aux/msgfmt-desktop	ident
+/data/trader.appdata.xml.in	ident
 /data/trader.desktop.in		ident
 /data/trader.svg		ident
 /doc/trader.*			ident

.gitignore

@@ -16,6 +16,7 @@ TAGS
 /configure
 /stamp-h1
 
+/data/trader.appdata.xml
 /data/trader.desktop
 
 /po/POTFILES

Makefile.am

@@ -33,6 +33,7 @@ SUBDIRS = lib src po data doc m4
 # Additional files to distribute
 EXTRA_DIST = \
 	build-aux/bootstrap		\
+	build-aux/msgfmt-appdata	\
 	build-aux/msgfmt-desktop	\
 	lib/obsolete-strings.c		\
 	lib/xopen-source.h

NEWS

@@ -25,7 +25,9 @@ __ https://www.zap.org.au/
 Version 7.16 (not yet released)
 -------------------------------
 
-(No changes yet)
+Added an application metadata file that conforms to the AppStream 0.12
+specification.  Updated all translations to suit, using parts of existing
+strings.
 
 
 Version 7.15 (12th January, 2021)

build-aux/msgfmt-appdata

@@ -0,0 +1,23 @@
+#!/bin/sh
+
+# Create or update AppData files using msgfmt(1)
+# $Id$
+
+# Usage:
+#   msgfmt-appdata -d PODIR INPUT OUTPUT
+
+set -e
+
+if [ x"$1" != x"-d" ]; then
+    echo "$0: Missing parameters" 1>&2
+    exit 1
+fi
+
+PODIR="$2"
+INPUT="$3"
+OUTPUT="$4"
+
+if ! msgfmt --xml -d "$PODIR" --template "$INPUT" -o "$OUTPUT"; then
+    echo "$0: Using cp(1) program instead"
+    cp "$INPUT" "$OUTPUT"
+fi

configure.ac

@@ -82,6 +82,7 @@ AS_IF([test "x$ax_cv_curses_enhanced" = xyes], [],
 ])
 
 AC_SUBST([desktopdir],['${datadir}/applications'])
+AC_SUBST([appdatadir],['${datadir}/metainfo'])
 AC_SUBST([iconsdir],['${datadir}/icons/hicolor'])
 
 AC_CONFIG_FILES([

data/Makefile.am

@@ -28,6 +28,7 @@
 
 
 dist_desktop_DATA       = trader.desktop
+dist_appdata_DATA       = trader.appdata.xml
 
 icons16dir              = ${iconsdir}/16x16/apps
 icons22dir              = ${iconsdir}/22x22/apps
@@ -55,8 +56,12 @@ dist_iconsscalable_DATA = trader.svg
 
 EXTRA_DIST = \
 	README			\
-	trader.desktop.in
+	trader.desktop.in	\
+	trader.appdata.xml.in
 
 
 trader.desktop: trader.desktop.in
 	$(top_srcdir)/build-aux/msgfmt-desktop -d $(top_srcdir)/po $< $@
+
+trader.appdata.xml: trader.appdata.xml.in
+	$(top_srcdir)/build-aux/msgfmt-appdata -d $(top_srcdir)/po $< $@

data/README

@@ -7,4 +7,4 @@ Star Traders: A Game of Interstellar Trading
 ============================================
 
 This directory, `data`, contains non-code data related to Star Traders.
-In particular, the desktop file and icons are located here.
+In particular, the desktop file, AppData file and icons are located here.

data/trader.appdata.xml.in

@@ -0,0 +1,59 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<!--
+*************************************************************************
+*                                                                       *
+*             Star Traders: A Game of Interstellar Trading              *
+*                Copyright (C) 1990-2021, John Zaitseff                 *
+*                                                                       *
+*************************************************************************
+
+Author: John Zaitseff <J.Zaitseff@zap.org.au>
+$Id$
+
+This file provides application metadata for Star Traders and conforms to
+the AppStream 0.12 specification.
+
+Copying and distribution of this file, with or without modification, are
+permitted in any medium without royalty provided the copyright notice and
+this notice are preserved.  This file is offered as-is, without any
+warranty.
+-->
+
+<component type="console-application">
+  <id>au.org.zap.trader</id>
+
+  <name>Star Traders</name>
+  <summary>Play Star Traders, a simple game of interstellar trading</summary>
+  <description>
+    <p>
+      Star Traders is a simple game of interstellar trading, where the
+      objective is to create companies, buy and sell shares, borrow and
+      repay money, in order to become the wealthiest player (the winner).
+    </p>
+  </description>
+
+  <icon>trader.svg</icon>
+  <launchable type="desktop-id">trader.desktop</launchable>
+  <provides>
+    <binary>trader</binary>
+  </provides>
+
+  <categories>
+    <category>Game</category>
+    <category>StrategyGame</category>
+  </categories>
+
+  <url type="homepage">https://www.zap.org.au/projects/trader/</url>
+  <developer_name>John Zaitseff</developer_name>
+
+  <screenshots>
+    <screenshot type="default">
+      <image>https://www.zap.org.au/projects/trader/screenshot.png</image>
+    </screenshot>
+  </screenshots>
+
+  <metadata_license>FSFAP</metadata_license>
+  <project_license>GPL-3.0+</project_license>
+  <content_rating type="oars-1.0" />
+</component>

po/POTFILES.in

@@ -28,6 +28,7 @@
 
 # Data files from Star Traders
 data/trader.desktop.in
+data/trader.appdata.xml.in
 
 # Source files from Star Traders
 src/trader.c