Add CI job for macOS 11 (Big Sur) (swiftlang#207)

* Add CI job for macOS 11 (Big Sur)

* Add bottle job for macOS Big Sur in publish workflow

Author: mattt

.github/workflows/ci.yml

@@ -7,16 +7,45 @@ on:
     branches: [master]
 
 jobs:
-  macos:
-    runs-on: macos-latest
+  macos_big_sur:
+    runs-on: macos-11.0
+
+    strategy:
+      matrix:
+        xcode:
+          - "11.7" # Swift 5.2
+          - "12.2" # Swift 5.3
+
+    name: "macOS Big Sur (Xcode ${{ matrix.xcode }})"
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v1
+      - uses: actions/cache@v2
+        with:
+          path: .build
+          key: ${{ runner.os }}-spm-xcode-${{ matrix.xcode }}-${{ hashFiles('**/Package.resolved') }}
+          restore-keys: |
+            ${{ runner.os }}-spm-xcode-${{ matrix.xcode }}-
+      - name: Install System Dependencies
+        run: |
+          brew install graphviz
+      - name: Build and Test
+        run: |
+          swift test -c release
+        env:
+          DEVELOPER_DIR: /Applications/Xcode_${{ matrix.xcode }}.app/Contents/Developer
+
+  macos_catalina:
+    runs-on: macos-10.15
 
     strategy:
       matrix:
         xcode:
           - "11.7" # Swift 5.2
           - "12" # Swift 5.3
 
-    name: "macOS (Xcode ${{ matrix.xcode }})"
+    name: "macOS Catalina (Xcode ${{ matrix.xcode }})"
 
     steps:
       - name: Checkout

.github/workflows/publish.yml

@@ -18,7 +18,7 @@ jobs:
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
 
-  bottle:
+  bottle_macos_catalina:
     name: Build and distribute Homebrew bottle for macOS Catalina
     runs-on: macos-10.15
     needs: [formula]
@@ -45,7 +45,38 @@ jobs:
           formula: Formula/swift-doc.rb
           message: |
               Add bottle for swift-doc ${{ github.event.release.tag_name }}
-              on macOS Catalina
+              on macOS 10.15 (Catalina)
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+
+  bottle_macos_big_sur:
+    name: Build and distribute Homebrew bottle for macOS Big Sur
+    runs-on: macos-11.0
+    needs: [formula]
+    steps:
+      - name: Build a bottle using Homebrew
+        run: |
+          brew tap swiftdocorg/formulae
+          brew install --build-bottle --verbose swift-doc
+          brew bottle swift-doc
+      - name: Upload the bottle to the GitHub release
+        uses: actions/[email protected]
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        with:
+          upload_url: ${{ github.event.release.upload_url }}
+          asset_path: ./swift-doc--${{ github.event.release.tag_name }}.big_sur.bottle.tar.gz
+          asset_name: swift-doc-${{ github.event.release.tag_name }}.big_sur.bottle.tar.gz
+          asset_content_type: application/gzip
+      - name: Update the Homebrew formula again with bottle
+        uses: NSHipster/update-homebrew-formula-action@main
+        with:
+          repository: SwiftDocOrg/swift-doc
+          tap: SwiftDocOrg/homebrew-formulae
+          formula: Formula/swift-doc.rb
+          message: |
+              Add bottle for swift-doc ${{ github.event.release.tag_name }}
+              on macOS 11.0 (Big Sur)
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}