ci: Add freebsd build

Author: marco

.github/workflows/ci.yml

@@ -34,6 +34,28 @@ jobs:
           cd ${{ github.workspace }}
           CI_CONFIG="ci/configs/openbsd.bash" bash ci/scripts/ci.sh
 
+  build-freebsd:
+    runs-on: ubuntu-latest
+    name: build • freebsd
+    defaults:
+      run:
+        shell: freebsd {0}
+    steps:
+      - uses: actions/checkout@v5
+
+      - name: Start FreeBSD VM
+        uses: vmactions/freebsd-vm@v1
+        with:
+          prepare: |
+            pkg install -y cmake ninja git python bash capnproto
+          sync: 'rsync'
+          copyback: false
+
+      - name: Run CI script
+        run: |
+          cd ${{ github.workspace }}
+          CI_CONFIG="ci/configs/freebsd.bash" bash ci/scripts/ci.sh
+
   build:
     runs-on: ubuntu-latest
 

ci/configs/freebsd.bash

@@ -0,0 +1,5 @@
+CI_DESC="CI config for FreeBSD"
+CI_DIR=build-freebsd
+export CXXFLAGS="-Werror -Wall -Wextra -Wpedantic -Wno-unused-parameter"
+CMAKE_ARGS=(-G Ninja)
+BUILD_ARGS=(-k 0)