ci: migrate to GitHub Actions

* travis: disable build, disable deploy, add free aarch64/ppc64le/s390x builds

* scripts: cleanup of old CI scripts

* scripts: now port to GitHub Actions

* actions: fix extras checkout

* github: remove codeql action, turned out not to be very useful

* github: remove quiet flag on wget

* github: are we allowed to use envvars?

* github: add needed dependencies for linux

* github: install wget for windows

* scripts: convert our CPU architecture naming into what AppImage uses

* github: run scripts with bash explicitly

* github: first try to upload to GitHub Releases, enable amd64 win32 builds

* Use our uploadtool fork

* ci: include android, motomagx build for gha, refactor cirrus and travis ci scripts

* gha: try to fix build

* travis: try to fix build

* gha: try to fix upload, fix win32 build

* gha: use curl instead of wget, as it's preinstalled for windows. Fix Android build

* gha: add llvm repository, install clang-12 for android

* gha: motomagx: fail fast

* gha: android: explicitly set clang-12 as compiler and llvm-strip-12 as strip

* waifulib: xcompile: respect environment variables when using host compiler for Android

* waifulib: xcompile: use correct environ dict

* gha: try to fix -fuse-ld=lld with clang-12

* waifulib: xcompile: fix typo

* scripts: xcompile: fix motomagx build

* mainui: upgrade

* gha: fix android build, last time

* engine: wscript: disable crashhandler for magx

scripts/travis/build_linux.sh

@@ -0,0 +1,103 @@
+#!/bin/bash
+
+. scripts/lib.sh
+
+APP=xash3d-fwgs
+APPDIR=$APP
+APPIMAGE=$APP-$ARCH.tar.xz
+
+build_sdl2()
+{
+	cd "$BUILDDIR"/SDL2_src || die
+	if [ "$ARCH" = "i386" ]; then
+		export CFLAGS="-msse2 -march=i686 -m32 -ggdb -O2"
+		export LDFLAGS="-m32"
+	fi
+	./configure \
+		--disable-render \
+		--disable-haptic \
+		--disable-power \
+		--disable-filesystem \
+		--disable-file \
+		--disable-libudev \
+		--disable-dbus \
+		--disable-ibus \
+		--disable-ime \
+		--disable-fcitx \
+		--enable-alsa-shared \
+		--enable-pulseaudio-shared \
+		--enable-wayland-shared \
+		--enable-x11-shared \
+		--prefix / || die # get rid of /usr/local stuff
+	make -j2 || die
+	mkdir -p "$BUILDDIR"/SDL2_linux
+	make install DESTDIR="$BUILDDIR"/SDL2_linux || die
+	export CFLAGS=""
+	export LDFLAGS=""
+}
+
+build_engine()
+{
+	# Build engine
+	cd "$BUILDDIR" || die
+
+	if [ "$ARCH" = "amd64" ]; then # we need enabling 64-bit target only on Intel-compatible CPUs
+		AMD64="-8"
+	fi
+
+	if [ "$1" = "dedicated" ]; then
+		./waf configure -T release -d -W $AMD64 || die
+	elif [ "$1" = "full" ]; then
+		./waf configure --sdl2=SDL2_linux -T release --enable-stb --prefix="$APPDIR" -W $AMD64 --enable-utils || die
+	else
+		die
+	fi
+
+	./waf build || die
+}
+
+build_archive()
+{
+	cd "$BUILDDIR" || die
+
+	./waf install || die
+
+	# Generate extras.pak
+	python3 scripts/makepak.py xash-extras/ "$APPDIR/extras.pak"
+
+	cp SDL2_linux/lib/libSDL2-2.0.so.0 "$APPDIR/"
+	if [ "$ARCH" = "i386" ]; then
+		cp vgui-dev/lib/vgui.so "$APPDIR/"
+	fi
+
+	cat > "$APPDIR"/run.sh << 'EOF'
+#!/bin/sh
+
+if [ "$XASH3D_BASEDIR" = "" ]; then
+	export XASH3D_BASEDIR=$PWD
+fi
+echo "Xash3D FWGS installed as tarball."
+echo "Base directory is $XASH3D_BASEDIR. Set XASH3D_BASEDIR environment variable to override this"
+
+export XASH3D_EXTRAS_PAK1="${XASH3D_BASEDIR}"/extras.pak
+export LD_LIBRARY_PATH="${XASH3D_BASEDIR}":$LD_LIBRARY_PATH
+${DEBUGGER} "${XASH3D_BASEDIR}"/xash3d "$@"
+exit $?
+EOF
+
+	chmod +x "$APPDIR"/xash3d "$APPDIR"/run.sh # Engine launcher & engine launcher script
+
+	echo "Contents of tarball: "
+	ls -R "$APPDIR"
+
+	tar -cJvf $APPIMAGE $APPDIR/*
+}
+
+rm -rf build # clean-up build directory
+build_engine dedicated
+mv build/engine/xash xashds-linux-$ARCH
+
+rm -rf build
+build_sdl2
+build_engine full
+build_archive

scripts/travis/deps_common.sh

@@ -0,0 +1 @@
+git clone --depth 1 https://github.com/FWGS/xash-extras

scripts/travis/deps_linux.sh

@@ -0,0 +1,4 @@
+# SDL2 sources. We will build our own version
+curl http://libsdl.org/release/SDL2-$SDL_VERSION.zip -o SDL2.zip
+unzip -q SDL2.zip
+mv SDL2-$SDL_VERSION SDL2_src