Add meson build system (#1)

Initial meson build system support. We do not create .desktop file yet, but we need an option to open media files from GUI first anyway.

bin/clapper

@@ -1,12 +0,0 @@
-#!/usr/bin/gjs
-
-const Package = imports.package;
-
-Package.init({
-  name: "clapper",
-  version: "0.0.0",
-  prefix: "/usr/local",
-  libdir: "/usr/local/lib",
-  datadir: "/usr/local/share",
-});
-Package.run(imports.main);

bin/com.github.rafostar.Clapper.in

@@ -0,0 +1,12 @@
+#!@GJS@
+
+const Package = imports.package;
+
+Package.init({
+  name: '@PACKAGE_NAME@',
+  version: '@PACKAGE_VERSION@',
+  prefix: '@prefix@',
+  libdir: '@libdir@',
+  datadir: '@datadir@',
+});
+Package.run(imports.main);

bin/meson.build

@@ -0,0 +1,16 @@
+bin_conf = configuration_data()
+bin_conf.set('GJS', find_program('gjs').path())
+bin_conf.set('PACKAGE_VERSION', meson.project_version())
+bin_conf.set('PACKAGE_NAME', meson.project_name())
+bin_conf.set('prefix', get_option('prefix'))
+bin_conf.set('libdir', join_paths(get_option('prefix'), get_option('libdir')))
+bin_conf.set('datadir', join_paths(get_option('prefix'), get_option('datadir')))
+
+configure_file(
+  input: 'com.github.rafostar.Clapper.in',
+  output: 'com.github.rafostar.Clapper',
+  configuration: bin_conf,
+  install: true,
+  install_dir: get_option('bindir'),
+  install_mode: 'rwxr-xr-x'
+)