Update to github actions

.github/workflows/ci.yml

@@ -0,0 +1,33 @@
+name: Build CI
+
+on:
+  push:
+  pull_request:
+  release:
+    types: [published]
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.head_ref || github.run_id }}
+  cancel-in-progress: true
+
+jobs:
+  build:
+    runs-on: ubuntu-22.04
+    steps:
+    - name: Set up repository
+      uses: actions/checkout@v4
+      with:
+        submodules: false
+        show-progress: false
+    - name: Set up compiler
+      uses: carlosperate/arm-none-eabi-gcc-action@v1
+      with:
+        # When changing this update what Windows grabs too!
+        release: '13.2.Rel1'    
+    - name: Build
+      run: make submodules && make -j$(nproc) all-boards && make drop-pkg
+    - name: Upload artifact
+      uses: actions/upload-artifact@v4
+      with: 
+        path: build/uf2-samdx1-*.zip
+

.gitignore

@@ -8,3 +8,4 @@ node_modules
 scripts/clean-ifaces/*.plist
 .vscode/c_cpp_properties.json
 TAGS
+dist

Makefile

@@ -98,7 +98,8 @@ SELF_EXECUTABLE_INO=$(BUILD_PATH)/update-$(NAME).ino
 
 SUBMODULES = lib/uf2/README.md
 
-all: $(SUBMODULES) dirs $(EXECUTABLE) $(SELF_EXECUTABLE)
+all: submodules dirs $(EXECUTABLE) $(SELF_EXECUTABLE)
+submodules: $(SUBMODULES)
 
 r: run
 b: burn
@@ -218,10 +219,10 @@ ifeq ($(CHIP_FAMILY),samd21)
 endif
 
 drop-pkg:
-	mv build/drop build/uf2-samd21-$(UF2_VERSION_BASE)
-	cp bin-README.md build/uf2-samd21-$(UF2_VERSION_BASE)/README.md
-	cd build; 7z a uf2-samd21-$(UF2_VERSION_BASE).zip uf2-samd21-$(UF2_VERSION_BASE)
-	rm -rf build/uf2-samd21-$(UF2_VERSION_BASE)
+	mv build/drop build/uf2-samdx1-$(UF2_VERSION_BASE)
+	cp bin-README.md build/uf2-samdx1-$(UF2_VERSION_BASE)/README.md
+	cd build; 7z a uf2-samdx1-$(UF2_VERSION_BASE).zip uf2-samdx1-$(UF2_VERSION_BASE)
+	rm -rf build/uf2-samdx1-$(UF2_VERSION_BASE)
 
 all-boards:
 	for f in `cd boards; ls` ; do "$(MAKE)" BOARD=$$f drop-board || break -1; done