Add pre-release workflow for automated VSIX packaging and release

Author: DecimalTurn

.github/workflows/pre-release.yml

@@ -0,0 +1,109 @@
+# This workflow creates a pre-release with a .vsix package attached
+# It triggers on pushes to development branches or when tags are created
+
+name: Pre-release
+
+on:
+  push:
+    branches:
+      - alt
+  workflow_dispatch:  # Allow manual trigger
+
+jobs:
+  pre-release:
+    runs-on: ubuntu-latest
+    
+    permissions:
+      contents: write  # Required to create releases
+      
+    steps:
+    - name: Checkout code
+      uses: actions/checkout@v4
+      
+    - name: Setup Node.js
+      uses: actions/setup-node@v4
+      with:
+        node-version: '20.x'
+        cache: 'npm'
+        
+    - name: Install dependencies
+      run: npm ci
+      
+    - name: Generate ANTLR files
+      run: |
+        npm run antlr
+        npm run build:textMate
+        # Handle ANTLR output location issue
+        if [ -d "./server/src/antlr/out/server/src/antlr" ]; then
+          mv ./server/src/antlr/out/server/src/antlr/* ./server/src/antlr/out/
+        fi
+        
+    - name: Build extension
+      run: npm run package
+      
+    - name: Install vsce
+      run: npm install -g vsce
+      
+    - name: Package extension
+      run: npm run vsix
+      
+    - name: Get package info
+      id: package
+      run: |
+        PACKAGE_NAME=$(node -p "require('./package.json').name")
+        PACKAGE_VERSION=$(node -p "require('./package.json').version")
+        echo "name=$PACKAGE_NAME" >> $GITHUB_OUTPUT
+        echo "version=$PACKAGE_VERSION" >> $GITHUB_OUTPUT
+        echo "vsix_name=$PACKAGE_NAME-$PACKAGE_VERSION.vsix" >> $GITHUB_OUTPUT
+        
+    - name: Generate release tag
+      id: tag
+      run: |
+        if [[ "${{ github.ref_type }}" == "tag" ]]; then
+          # If triggered by a tag, use that tag
+          echo "tag=${{ github.ref_name }}" >> $GITHUB_OUTPUT
+        else
+          # Generate a pre-release tag with timestamp
+          TIMESTAMP=$(date +%Y%m%d-%H%M%S)
+          BRANCH_NAME=$(echo "${{ github.ref_name }}" | sed 's/[^a-zA-Z0-9.-]/-/g')
+          echo "tag=pre-${{ steps.package.outputs.version }}-$BRANCH_NAME-$TIMESTAMP" >> $GITHUB_OUTPUT
+        fi
+        
+    - name: Create pre-release
+      id: create_release
+      uses: actions/create-release@v1
+      env:
+        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+      with:
+        tag_name: ${{ steps.tag.outputs.tag }}
+        release_name: Pre-release ${{ steps.tag.outputs.tag }}
+        body: |
+          🚀 **Pre-release build**
+          
+          This is an automated pre-release build from branch `${{ github.ref_name }}`.
+          
+          **Package Info:**
+          - Version: ${{ steps.package.outputs.version }}
+          - Commit: ${{ github.sha }}
+          - Branch: ${{ github.ref_name }}
+          - Build Time: ${{ github.run_id }}
+          
+          **Installation:**
+          1. Download the `.vsix` file from the assets below
+          2. In VS Code, go to Extensions view (Ctrl+Shift+X)
+          3. Click the "..." menu and select "Install from VSIX..."
+          4. Select the downloaded `.vsix` file
+          
+          ⚠️ **Note:** This is a pre-release version and may contain bugs or incomplete features.
+        draft: false
+        prerelease: true
+        
+    - name: Upload VSIX asset
+      uses: actions/upload-release-asset@v1
+      env:
+        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+      with:
+        upload_url: ${{ steps.create_release.outputs.upload_url }}
+        asset_path: ./${{ steps.package.outputs.vsix_name }}
+        asset_name: ${{ steps.package.outputs.vsix_name }}
+        asset_content_type: application/zip