ci: migrate to gh actions

Author: mbkma

.build.yml

@@ -0,0 +1,49 @@
+#!/usr/bin/bash
+
+set -eo pipefail
+
+# Use grouped output messages
+infobegin() {
+	echo "::group::${1}"
+}
+infoend() {
+	echo "::endgroup::"
+}
+
+# Required packages on Archlinux
+requires=(
+	ccache # Use ccache to speed up build
+	clang  # Build with clang on Archlinux
+)
+
+# https://gitlab.archlinux.org/archlinux/packaging/packages/mate-panel
+requires+=(
+	autoconf-archive
+	dbus-glib
+	dconf-editor
+	gcc
+	gettext
+	git
+	glib2-devel
+	gobject-introspection
+	gtk-layer-shell
+	itstool
+	libcanberra
+	libmateweather
+	libsm
+	libwnck3
+	make
+	mate-common
+	mate-desktop
+	mate-menus
+	which
+	yelp-tools
+)
+
+infobegin "Update system"
+pacman --noconfirm -Syu
+infoend
+
+infobegin "Install dependency packages"
+pacman --noconfirm -S ${requires[@]}
+infoend