Add warning and update PR checks for Swift on Linux (#2399)

* PR checks: Only run Swift build command on MacOS
* PR checks: update to only test Swift on MacOS
* Log warning if workflow is running Swift on Ubuntu
---------

Co-authored-by: Andrew Eisenberg <aeisenberg@github.com>

pr-checks/checks/all-platform-bundle.yml

@@ -7,10 +7,9 @@ steps:
   - id: init
     uses: ./../action/init
     with:
+      # Swift is not supported on Ubuntu so we manually exclude it from the list here
+      languages: cpp,csharp,go,java,javascript,python,ruby 
       tools: ${{ steps.prepare-test.outputs.tools-url }}
-  - uses: ./../action/.github/actions/setup-swift
-    with:
-      codeql-path: ${{ steps.init.outputs.codeql-path }}
   - name: Build code
     shell: bash
     run: ./build.sh

pr-checks/checks/build-mode-manual.yml

@@ -20,10 +20,6 @@ steps:
         exit 1
       fi
 
-  - uses: ./../action/.github/actions/setup-swift
-    with:
-      codeql-path: ${{ steps.init.outputs.codeql-path }}
-
   - name: Build code
     shell: bash
     run: ./build.sh

pr-checks/checks/export-file-baseline-information.yml

@@ -29,7 +29,7 @@ steps:
     run: |
       cd "$RUNNER_TEMP/results"
       expected_baseline_languages="c csharp go java kotlin javascript python ruby"
-      if [[ $RUNNER_OS != "Windows" ]]; then
+      if [[ $RUNNER_OS == "macOS" ]]; then
         expected_baseline_languages+=" swift"
       fi
 

pr-checks/checks/multi-language-autodetect.yml

@@ -1,14 +1,6 @@
 name: "Multi-language repository"
-description: "An end-to-end integration test of a multi-language repository using automatic language detection"
+description: "An end-to-end integration test of a multi-language repository using automatic language detection for MacOS"
 operatingSystems: ["macos", "ubuntu"]
-excludeOsAndVersionCombination: [ 
-  # Known failure for Swift on Linux before CLI v2.17.4.
-  [ "ubuntu", "stable-20230403" ], 
-  [ "ubuntu", "stable-v2.13.5" ], 
-  [ "ubuntu", "stable-v2.14.6" ], 
-  [ "ubuntu", "stable-v2.15.5" ],
-  [ "ubuntu", "stable-v2.16.6" ],
-]
 steps:
   - uses: actions/setup-go@v5
     with:
@@ -18,9 +10,12 @@ steps:
     id: init
     with:
       db-location: "${{ runner.temp }}/customDbLocation"
+      # Swift is not supported on Ubuntu so we manually exclude it from the list here
+      languages: ${{ runner.os == 'Linux' && 'cpp,csharp,go,java,javascript,python,ruby' || '' }}
       tools: ${{ steps.prepare-test.outputs.tools-url }}
 
   - uses: ./../action/.github/actions/setup-swift
+    if: runner.os == 'macOS'
     with:
       codeql-path: ${{ steps.init.outputs.codeql-path }}
 
@@ -72,8 +67,8 @@ steps:
         exit 1
       fi
 
-  - name: Check language autodetect for Swift
-    if: runner.os != 'Windows' && matrix.version != 'stable-20230403'
+  - name: Check language autodetect for Swift on MacOS
+    if: runner.os == 'macOS' && matrix.version != 'stable-20230403'
     shell: bash
     run: |
       SWIFT_DB=${{ fromJson(steps.analysis.outputs.db-locations).swift }}

pr-checks/checks/swift-custom-build.yml

@@ -1,7 +1,7 @@
 name: "Swift analysis using a custom build command"
 description: "Tests creation of a Swift database using custom build"
 versions: ["linked", "default", "nightly-latest"]
-operatingSystems: ["macos", "ubuntu"]
+operatingSystems: ["macos"]
 env:
   DOTNET_GENERATE_ASPNET_CERTIFICATE: "false"
 steps:

pr-checks/checks/test-local-codeql.yml

@@ -12,10 +12,9 @@ steps:
   - id: init
     uses: ./../action/init
     with:
+      # Swift is not supported on Ubuntu so we manually exclude it from the list here
+      languages: cpp,csharp,go,java,javascript,python,ruby
       tools: ./codeql-bundle-linux64.tar.gz
-  - uses: ./../action/.github/actions/setup-swift
-    with:
-      codeql-path: ${{ steps.init.outputs.codeql-path }}
   - name: Build code
     shell: bash
     run: ./build.sh

pr-checks/checks/unset-environment.yml

@@ -1,24 +1,15 @@
 name: "Test unsetting environment variables"
 description: "An end-to-end integration test that unsets some environment variables"
 operatingSystems: ["ubuntu"]
-excludeOsAndVersionCombination: [ 
-  # Known failure for Swift on Linux before CLI v2.17.4.
-  [ "ubuntu", "stable-20230403" ], 
-  [ "ubuntu", "stable-v2.13.5" ], 
-  [ "ubuntu", "stable-v2.14.6" ], 
-  [ "ubuntu", "stable-v2.15.5" ],
-  [ "ubuntu", "stable-v2.16.6" ],
-]
 
 steps:
   - uses: ./../action/init
     id: init
     with:
       db-location: ${{ runner.temp }}/customDbLocation
+      # Swift is not supported on Ubuntu so we manually exclude it from the list here
+      languages: cpp,csharp,go,java,javascript,python,ruby 
       tools: ${{ steps.prepare-test.outputs.tools-url }}
-  - uses: ./../action/.github/actions/setup-swift
-    with:
-      codeql-path: ${{ steps.init.outputs.codeql-path }}
   - uses: actions/setup-go@v5
     with:
       go-version: '>=1.21.0'