Re-introduce GPG key, use release tarballs

PKGBUILD

@@ -4,7 +4,7 @@
 pkgname=sway
 pkgver=1.2
 epoch=1
-pkgrel=4
+pkgrel=5
 pkgdesc='Tiling Wayland compositor and replacement for the i3 window manager'
 arch=(x86_64)
 url='https://swaywm.org/'
@@ -25,13 +25,16 @@ optdepends=(
   'waybar: Highly customizable bar'
   'xorg-server-xwayland: X11 support'
 )
-source=('git+https://github.com/swaywm/sway#commit=be138dab4419d3e76a7742428d9ec85bce06116b'
-        10-systemd.conf)
-md5sums=('SKIP'
-         'e614ac10c21d57da6b3af25653589a9e')
+source=("https://github.com/swaywm/sway/releases/download/$pkgver/sway-$pkgver.tar.gz"
+        "https://github.com/swaywm/sway/releases/download/$pkgver/sway-$pkgver.tar.gz.sig"
+        "10-systemd.conf")
+sha512sums=('e3842e0da58a1678289aa24fc84f6841deeea6e9ffe04407525e5b9d62ed177d890133ff07412317c811f5b07a2e5073d14ff59a30e62111f51fc65af0dddb19'
+            'SKIP'
+            '122b97f7adb6444c442368c5bbbd3401bcd8420f522fcd6521def5a09cd2989f5f6f555a5a7762e922eaa307077eb26db6508242ee1b835ca73ad65acaeef95b')
+validpgpkeys=('9DDA3B9FA5D58DD5392C78E652CB6609B22DA89A') # Drew DeVault
 
 prepare() {
-  cd $pkgname
+  cd "$pkgname-$pkgver"
 
   # Set the version information to 'Arch Linux' instead of 'makepkg'
   sed -i "s/branch \\\'@1@\\\'/Arch Linux/g" meson.build
@@ -39,13 +42,13 @@ prepare() {
 
 build() {
   mkdir -p build
-  arch-meson build $pkgname -D werror=false -D b_ndebug=true
+  arch-meson build "$pkgname-$pkgver" -D werror=false -D b_ndebug=true
   ninja -C build
 }
 
 package() {
   DESTDIR="$pkgdir" ninja -C build install
-  install -Dm644 $pkgname/LICENSE "$pkgdir/usr/share/licenses/$pkgname/LICENSE"
+  install -Dm644 "$pkgname-$pkgver/LICENSE" "$pkgdir/usr/share/licenses/$pkgname/LICENSE"
   install -Dm755 10-systemd.conf "$pkgdir/etc/sway/conf.d/10-systemd.conf"
 }