Use GitHub Actions

.github/workflows/build.yml

@@ -0,0 +1,52 @@
+name: Build
+on: [push, pull_request]
+
+jobs:
+  build:
+    name: ${{ matrix.os }}, go${{ matrix.go }}
+    runs-on: ${{ matrix.os }}
+
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ubuntu-latest, macos-latest, windows-latest]
+        go: [1.17]
+
+    defaults:
+      run:
+        shell: bash
+
+    steps:
+      - name: Checkout repository and submodules
+        uses: actions/checkout@v2
+
+      - name: Set up Go ${{ matrix.go }}
+        uses: actions/setup-go@v2
+        with:
+          go-version: ${{ matrix.go }}
+
+      - name: Vet
+        run: go vet
+
+      - name: Build
+        run: go build
+
+      - name: Prepare artifacts
+        run: |
+          echo -e "Author:   Niels A.D.
+          Project:  autoindex (https://github.com/nielsAD/autoindex)
+          Platform: `go env GOOS`/`go env GOARCH` (`go env GOVERSION`)
+          Release:  $GITHUB_REF_NAME ($GITHUB_SHA)
+          Date:     `date --utc`" > VERSION.txt
+          mv autoindex.exe autoindex-$GITHUB_REF_NAME.exe || true
+          mv autoindex autoindex-$GITHUB_REF_NAME         || true
+          mv LICENSE LICENSE.txt
+
+      - name: Upload artifacts
+        uses: actions/upload-artifact@v2
+        with:
+          name: autoindex_${{ github.ref_name }}_${{ runner.os }}
+          path: |
+            autoindex-*
+            LICENSE.txt
+            VERSION.txt

.github/workflows/codeql.yaml

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+name: CodeQL
+on:
+  push:
+    branches: [master]
+  pull_request:
+    branches: [master]
+  schedule:
+    - cron: '0 0 * * 0'
+
+jobs:
+  analyze:
+    runs-on: ubuntu-latest
+    permissions:
+      security-events: write
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v2
+
+      - name: Initialize CodeQL
+        uses: github/codeql-action/init@v1
+        with:
+          languages: go
+
+      - name: Perform CodeQL Analysis
+        uses: github/codeql-action/analyze@v1