Add MUSL job (#30)

* Add MUSL job

* Add custom flags for MUSL

.github/workflows/run-unit-tests.yml

@@ -52,17 +52,28 @@ on:
  required: false
  default: false
  description: "Set to 'true' to run tests on Windows. Defaults to 'false'."
+ with_musl:
+ type: boolean
+ required: false
+ default: false
+ description: "Set to 'true' to build with the Static Linux SDK to test MUSL compatibility. Defaults to 'false'."
  extra_flags:
  type: string
  required: false
  default: ''
  description: "Additional 'swift test' flags to be applied on when testing on all platforms."
+ extra_musl_flags:
+ type: string
+ required: false
+ default: ''
+ description: "Additional 'swift build' flags to be applied on when compiling with MUSL."
  secrets:
  CODECOV_TOKEN:
  required: false
 env:
  PACKAGE_ROOT: ${{ inputs.package_root != '' && format('--package-path={0}', inputs.package_root) || '' }}
  EXTRA_FLAGS: ${{ inputs.extra_flags }}
+ EXTRA_MUSL_FLAGS: ${{ inputs.extra_musl_flags }}
  WITH_TSAN: ${{ inputs.with_tsan && '--sanitize=thread' || '' }}
  WARNINGS_AS_ERRORS: ${{ inputs.warnings_as_errors && '-Xswiftc -warnings-as-errors' || '' }}
  TEST_FILTER: ${{ inputs.test_filter != '' && format('--filter={0}', inputs.test_filter) || '' }}
@@ -231,3 +242,16 @@ jobs:
  fi
  - name: Lint
  run: swift-format lint --recursive --strict --parallel .
+
+ musl:
+ if: ${{ !(github.event.pull_request.draft || false) && inputs.with_musl }}
+ runs-on: ubuntu-latest
+ container: swift:6.0-noble
+ timeout-minutes: 30
+ steps:
+ - name: Check out code
+ uses: actions/checkout@v4
+ - name: Install SDK
+ run: swift sdk install https://download.swift.org/swift-6.0.1-release/static-sdk/swift-6.0.1-RELEASE/swift-6.0.1-RELEASE_static-linux-0.0.1.artifactbundle.tar.gz --checksum d4f46ba40e11e697387468e18987ee622908bc350310d8af54eb5e17c2ff5481
+ - name: Build
+ run: swift build --swift-sdk x86_64-swift-linux-musl ${PACKAGE_PATH} ${EXTRA_FLAGS} ${EXTRA_MUSL_FLAGS} ${WARNINGS_AS_ERRORS}