Add the github autorelease script.

.github/workflows/release.yml

@@ -0,0 +1,49 @@
+name: Autorelease
+
+on:
+  push:
+    branches:
+      - "master"
+
+jobs:
+  dev-release:
+    runs-on: windows-latest
+    defaults:
+      run:
+        shell: msys2 {0}
+    steps:
+    - uses: msys2/setup-msys2@v2
+    - uses: actions/checkout@v1
+      with:
+        fetch-depth: 1
+    - name: pacman
+      run: |
+        pacman -S --noconfirm --needed make ninja mingw-w64-i686-libusb mingw-w64-i686-sqlite3 mingw-w64-i686-zlib mingw-w64-cross-gcc zip
+    - name: build
+      run: |
+        make CXX=/opt/bin/i686-w64-mingw32-g++.exe AR="/opt/bin/i686-w64-mingw32-ar.exe rcs"
+    - name: zip
+      run: |
+        zip -9 fluxengine.zip fluxengine.exe brother120tool.exe brother240tool.exe FluxEngine.cydsn/CortexM3/ARM_GCC_541/Release/FluxEngine.hex
+    - name: tag
+      uses: hole19/git-tag-action@master
+      env:
+        TAG: dev
+        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+    - name: delete-old-assets
+      uses: mknejp/delete-release-assets@v1
+      with:
+        token: ${{ github.token }}
+        tag: dev
+        assets: | 
+          fluxengine.zip
+    - name: release
+      uses: softprops/action-gh-release@v1
+      with:
+        name: Development build
+        files: |
+          fluxengine.zip
+        tag_name: dev
+        prerelease: true
+      env:
+        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}