Add debug workflow

.github/workflows/build.yaml

@@ -0,0 +1,36 @@
+name: Build
+on:
+  push:
+    branches:
+      - main
+jobs:
+  build:
+    name: Build
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v2
+        with:
+          fetch-depth: 0
+      - name: Get latest go version
+        id: version
+        run: |
+          echo ::set-output name=go_version::$(curl -s https://raw.githubusercontent.com/actions/go-versions/main/versions-manifest.json | grep -oE '"version": "[0-9]{1}.[0-9]{1,}(.[0-9]{1,})?"' | head -1 | cut -d':' -f2 | sed 's/ //g; s/"//g')
+      - name: Setup Go
+        uses: actions/setup-go@v2
+        with:
+          go-version: ${{ steps.version.outputs.go_version }}
+      - name: Build geosite
+        id: build
+        env:
+          GOPRIVATE: github.com/sagernet
+          ACCESS_TOKEN: ${{ secrets.ACCESS_TOKEN }}
+          NO_SKIP: true
+        run: |
+          git config --global url."https://${{ secrets.ACCESS_TOKEN }}@github.com".insteadOf "https://github.com"
+          go run -v .
+      - name: Upload artifacts
+        uses: actions/upload-artifact@v2
+        with:
+          name: geosite.db
+          path: geosite.db