feat: introduce custom wails-builder Docker image to optimize CI build speed and consistency

.gitea/workflows/build-image.yml

@@ -0,0 +1,27 @@
+name: Build Docker Image
+
+on:
+  workflow_dispatch:
+
+jobs:
+  build-and-push-image:
+    runs-on: build-htz-01
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v3
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
+      - name: Build and push
+        uses: docker/build-push-action@v5
+        with:
+          context: .
+          file: ./Dockerfile.build
+          platforms: linux/amd64,linux/arm64
+          push: true
+          tags: cr.jdbnet.co.uk/jdbnet/wails-builder:latest

.gitea/workflows/build.yml

@@ -21,16 +21,9 @@ jobs:
           mkdir -p dist
 
           # Build Linux amd64 and Windows (amd64 & arm64) binaries
-          docker run --rm -v ${{ github.workspace }}:/workspace -w /workspace golang:1.26.4-bookworm bash -c "
-            apt-get update && apt-get install -y curl gcc mingw-w64 libgtk-3-dev libwebkit2gtk-4.1-dev
-            
-            # Install Node.js
-            curl -fsSL https://deb.nodesource.com/setup_22.x | bash -
-            apt-get install -y nodejs
-            
-            # Install Wails CLI
-            go install github.com/wailsapp/wails/v2/cmd/wails@latest
-            export PATH=\"\$PATH:\$(go env GOPATH)/bin\"
+          docker run --rm -v ${{ github.workspace }}:/workspace -w /workspace cr.jdbnet.co.uk/jdbnet/wails-builder:latest bash -c "
+            # Install frontend dependencies
+            cd frontend && npm install && cd ..
             
             # Linux amd64
             wails build -platform linux/amd64 -tags webkit2_41 -clean
@@ -48,24 +41,14 @@ jobs:
       - name: Build Linux ARM64 binary (via QEMU)
         run: |
           # Build Linux arm64 binaries (via QEMU)
-          docker run --rm --platform linux/arm64 -v ${{ github.workspace }}:/workspace -w /workspace golang:1.26.4-bookworm bash -c "
-            apt-get update && apt-get install -y curl gcc libgtk-3-dev libwebkit2gtk-4.1-dev
-            
-            # Install Node.js
-            curl -fsSL https://deb.nodesource.com/setup_22.x | bash -
-            apt-get install -y nodejs
-            
+          docker run --rm --platform linux/arm64 -v ${{ github.workspace }}:/workspace -w /workspace cr.jdbnet.co.uk/jdbnet/wails-builder:latest bash -c "
             # Re-install frontend dependencies for arm64 (clears out the amd64 esbuild binary)
             rm -rf frontend/node_modules
             cd frontend && npm install && cd ..
             
-            # Install Wails CLI
-            go install github.com/wailsapp/wails/v2/cmd/wails@latest
-            export PATH=\"\$PATH:\$(go env GOPATH)/bin\"
-            
             # Linux arm64
             wails build -platform linux/arm64 -tags webkit2_41 -clean
-            cp build/bin/goexplore-init dist/goexplore-linux-arm64
+            cp build/bin/goexplore dist/goexplore-linux-arm64
           "
 
       - name: Upload to Cloudflare R2

Dockerfile.build

@@ -0,0 +1,22 @@
+FROM golang:1.26.4-bookworm
+
+# Install required system dependencies for Wails, GTK, WebKit, and MinGW for cross-compiling
+RUN apt-get update && apt-get install -y \
+    curl \
+    gcc \
+    mingw-w64 \
+    libgtk-3-dev \
+    libwebkit2gtk-4.1-dev \
+    && rm -rf /var/lib/apt/lists/*
+
+# Install Node.js 22
+RUN curl -fsSL https://deb.nodesource.com/setup_22.x | bash - \
+    && apt-get install -y nodejs \
+    && rm -rf /var/lib/apt/lists/*
+
+# Install Wails CLI
+RUN go install github.com/wailsapp/wails/v2/cmd/wails@latest
+
+ENV PATH="$PATH:/go/bin"
+
+WORKDIR /workspace