CI: add an Arch Linux build on Sourcehut

.builds/archlinux.yml

@@ -0,0 +1,30 @@
+image: archlinux
+packages:
+  - clang
+  - meson
+  - libinput
+  - libxkbcommon
+  - wayland
+  - wayland-protocols
+  - xorg-server-xwayland
+sources:
+  - https://github.com/swaywm/wlroots
+  - https://github.com/Hjdskes/cage
+tasks:
+  # Install wlroots, which is required by Cage. Note that we compile a tagged
+  # version, instead of master, to avoid any breaking changes in wlroots.
+  - wlroots: |
+      cd wlroots
+      # This corresponds to the tag of 0.5.0
+      git checkout c9137cba691b57c3eaf3ff94f9bf8e623f66ccc5
+      meson --prefix=/usr build -Drootston=false -Dexamples=false
+      ninja -C build
+      sudo ninja -C build install
+  - build: |
+      cd cage
+      meson build -Dxwayland=true
+      ninja -C build
+  - scan-build: |
+      cd cage
+      CC=clang meson build -Dxwayland=true
+      CC=clang ninja -C build scan-build

README.md

@@ -1,4 +1,4 @@
-# Cage: a Wayland kiosk
+# Cage: a Wayland kiosk [![builds.sr.ht status](https://builds.sr.ht/~hjdskes.svg)](https://builds.sr.ht/~hjdskes?)
 
 This is Cage, a Wayland kiosk. A kiosk runs a single, maximized
 application.