Merge pull request #75 from mxcl/ci/macos-11

[ci] can has macos-11

.github/workflows/ci.yml

@@ -6,21 +6,26 @@ on:
       - .github/workflows/ci.yml
   schedule:
     - cron: '3 3 * * 5'  # 3:03 AM, every Friday
+
 concurrency:
   group: ${{ github.head_ref || 'push' }}
   cancel-in-progress: true
+
 jobs:
-  smoke:
-    runs-on: macos-latest
+  verify-linuxmain:
+    runs-on: macos-10.15
     steps:
     - uses: actions/checkout@v2
     - run: swift test --generate-linuxmain
     - run: git diff --exit-code
 
   apple:
-    runs-on: macos-latest
+    runs-on: ${{ matrix.os }}
     strategy:
       matrix:
+        os:
+          - macos-10.15
+          - macos-11
         platform:
           - iOS
           - tvOS
@@ -35,25 +40,13 @@ jobs:
         warnings-as-errors: true
     - uses: codecov/codecov-action@v1
 
-  linux-swift-4:
-    name: linux (${{ matrix.swift }})
-    runs-on: ubuntu-latest
-    strategy:
-      matrix:
-        swift: ['4.2', '5.0']
-    container:
-      image: swift:${{ matrix.swift }}
-    steps:
-    - uses: actions/checkout@v2
-    - run: useradd -ms /bin/bash mxcl
-    - run: chown -R mxcl .
-    - run: su mxcl -c 'swift test --parallel'
-
   linux:
     runs-on: ubuntu-latest
     strategy:
       matrix:
         swift:
+        - swift:4.2
+        - swift:5.0
         - swift:5.1
         - swift:5.2
         - swift:5.3
@@ -62,12 +55,22 @@ jobs:
     container:
       image: ${{ matrix.swift }}
     steps:
+    - uses: mxcl/get-swift-version@v1
+      id: swift
+
     - uses: actions/checkout@v2
+
     - run: useradd -ms /bin/bash mxcl
-           # ^^ we need to be a normal user and not root for the tests to be valid
     - run: chown -R mxcl .
-    - run: su mxcl -c 'swift test --parallel --enable-code-coverage'
+    # ^^ we need to be a normal user and not root for the tests to be valid
+
+    - run: echo ARGS=--enable-code-coverage >> $GITHUB_ENV
+      if: ${{ steps.swift.outputs.marketing-version > 5 }}
+
+    - run: su mxcl -c "swift test --parallel $ARGS"
+
     - name: Generate `.lcov`
+      if: ${{ steps.swift.outputs.marketing-version > 5 }}
       run: |
         apt-get -qq update && apt-get -qq install curl
         b=$(swift build --show-bin-path)
@@ -77,6 +80,8 @@ jobs:
           --ignore-filename-regex='\.build|Tests' \
           "$b"/*.xctest \
           > info.lcov
+
     - uses: codecov/codecov-action@v1
+      if: ${{ steps.swift.outputs.marketing-version > 5 }}
       with:
         file: ./info.lcov