Add linux platform

Author: lauzadis

.github/workflows/ci.yml

@@ -37,8 +37,10 @@ jobs:
         uses: actions/checkout@v4
         with:
           path: 'smithy-kotlin'
+
       - name: Setup build
         uses: ./smithy-kotlin/.github/actions/setup-build
+
       - name: Test
         working-directory: ./smithy-kotlin
         shell: bash
@@ -58,8 +60,10 @@ jobs:
         uses: actions/checkout@v4
         with:
           path: 'smithy-kotlin'
+
       - name: Setup build
         uses: ./smithy-kotlin/.github/actions/setup-build
+
       - name: Test
         working-directory: ./smithy-kotlin
         shell: bash
@@ -69,47 +73,48 @@ jobs:
           ./gradlew apiCheck
           ./gradlew -Paws.sdk.kotlin.crt.disableCrossCompile=true build
           ./gradlew -Paws.sdk.kotlin.crt.disableCrossCompile=true allTests
+
       - name: Save Test Reports
         if: failure()
         uses: actions/upload-artifact@v3
         with:
           name: test-reports-${{ matrix.os }}
           path: '**/build/reports'
 
-#  # build and test for targets: jvm, linuxX64
-#  # cross compile for: linuxX64, linuxArm64
-#  # TODO - add mingw as cross compile target
-#  linux:
-#    runs-on: ubuntu-22.04
-#    steps:
-#      - name: Checkout sources
-#        uses: actions/checkout@v4
-#        with:
-#          path: 'smithy-kotlin'
-#
-#      - name: Setup build
-#        uses: ./smithy-kotlin/.github/actions/setup-build
-#
-#      - name: Configure CRT Docker Images
-#        run: |
-#          ./aws-crt-kotlin/docker-images/build-all.sh
-#
-#      - name: Test
-#        working-directory: ./smithy-kotlin
-#        shell: bash
-#        run: |
-#          # FIXME K2. Re-enable warnings as errors after this warning is removed: https://youtrack.jetbrains.com/issue/KT-68532
-#          # echo "kotlinWarningsAsErrors=true" >> $GITHUB_WORKSPACE/local.properties
-#          ./gradlew apiCheck
-#          ./gradlew build
-#          ./gradlew allTests
-#
-#      - name: Save Test Reports
-#        if: failure()
-#        uses: actions/upload-artifact@v3
-#        with:
-#          name: test-reports-${{ matrix.os }}
-#          path: '**/build/reports'
+  # build and test for targets: jvm, linuxX64
+  # cross compile for: linuxX64, linuxArm64
+  # TODO - add mingw as cross compile target
+  linux:
+    runs-on: ubuntu-22.04
+    steps:
+      - name: Checkout sources
+        uses: actions/checkout@v4
+        with:
+          path: 'smithy-kotlin'
+
+      - name: Setup build
+        uses: ./smithy-kotlin/.github/actions/setup-build
+
+      - name: Configure CRT Docker Images
+        run: |
+          ./aws-crt-kotlin/docker-images/build-all.sh
+
+      - name: Test
+        working-directory: ./smithy-kotlin
+        shell: bash
+        run: |
+          # FIXME K2. Re-enable warnings as errors after this warning is removed: https://youtrack.jetbrains.com/issue/KT-68532
+          # echo "kotlinWarningsAsErrors=true" >> $GITHUB_WORKSPACE/local.properties
+          ./gradlew apiCheck
+          ./gradlew build
+          ./gradlew allTests
+
+      - name: Save Test Reports
+        if: failure()
+        uses: actions/upload-artifact@v3
+        with:
+          name: test-reports-${{ matrix.os }}
+          path: '**/build/reports'
 
 #  all-platforms:
 #    runs-on: ${{ matrix.os }}
@@ -146,8 +151,10 @@ jobs:
         uses: actions/checkout@v4
         with:
           path: 'smithy-kotlin'
+
       - name: Setup build
         uses: ./smithy-kotlin/.github/actions/setup-build
+
       - name: Test
         working-directory: ./smithy-kotlin
         shell: bash
@@ -162,14 +169,17 @@ jobs:
       uses: actions/checkout@v4
       with:
         path: 'smithy-kotlin'
+
     - name: Setup build
       uses: ./smithy-kotlin/.github/actions/setup-build
+
     - name: Checkout aws-sdk-kotlin
       uses: ./aws-kotlin-repo-tools/.github/actions/checkout-head
       with:
         # smithy-kotlin is checked out as a sibling dir which will automatically make it an included build
         path: 'aws-sdk-kotlin'
         repository: 'awslabs/aws-sdk-kotlin'
+
     - name: Build and Test aws-sdk-kotlin downstream
       working-directory: ./smithy-kotlin
       run: |