Refactor into per-OS jobs

Author: hugovk

.github/workflows/tail-call.yml

@@ -23,7 +23,7 @@ env:
   LLVM_VERSION: 21
 
 jobs:
-  tail-call:
+  windows:
     name: ${{ matrix.target }}
     runs-on: ${{ matrix.runner }}
     timeout-minutes: 90
@@ -41,34 +41,14 @@ jobs:
             runner: windows-2025-vs2026
             build_flags: --disable-gil
             run_tests: false
-          - target: x86_64-apple-darwin/clang
-            architecture: x86_64
-            runner: macos-15-intel
-          - target: aarch64-apple-darwin/clang
-            architecture: aarch64
-            runner: macos-14
-          - target: x86_64-unknown-linux-gnu/gcc
-            architecture: x86_64
-            runner: ubuntu-24.04
-            configure_flags: --with-pydebug
-          - target: x86_64-unknown-linux-gnu/gcc-free-threading
-            architecture: x86_64
-            runner: ubuntu-24.04
-            configure_flags: --disable-gil
-          - target: aarch64-unknown-linux-gnu/gcc
-            architecture: aarch64
-            runner: ubuntu-24.04-arm
-            configure_flags: --with-pydebug
     steps:
       - uses: actions/checkout@v6
         with:
           persist-credentials: false
       - uses: actions/setup-python@v6
         with:
           python-version: '3.11'
-
-      - name: Native Windows MSVC (release)
-        if: runner.os == 'Windows'
+      - name: Build and test
         shell: pwsh
         run: |
           $env:PlatformToolset = "v145"
@@ -77,8 +57,26 @@ jobs:
             ./PCbuild/rt.bat -p ${{ matrix.architecture }} -q --multiprocess 0 --timeout 4500 --verbose2 --verbose3
           }
 
-      - name: Native macOS (release)
-        if: runner.os == 'macOS'
+  macos:
+    name: ${{ matrix.target }}
+    runs-on: ${{ matrix.runner }}
+    timeout-minutes: 90
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          - target: x86_64-apple-darwin/clang
+            runner: macos-15-intel
+          - target: aarch64-apple-darwin/clang
+            runner: macos-14
+    steps:
+      - uses: actions/checkout@v6
+        with:
+          persist-credentials: false
+      - uses: actions/setup-python@v6
+        with:
+          python-version: '3.11'
+      - name: Build and test
         run: |
           brew update
           brew install llvm@${{ env.LLVM_VERSION }}
@@ -89,8 +87,31 @@ jobs:
           make all --jobs 4
           ./python.exe -m test --multiprocess 0 --timeout 4500 --verbose2 --verbose3
 
-      - name: Native Linux
-        if: runner.os == 'Linux'
+  linux:
+    name: ${{ matrix.target }}
+    runs-on: ${{ matrix.runner }}
+    timeout-minutes: 90
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          - target: x86_64-unknown-linux-gnu/gcc
+            runner: ubuntu-24.04
+            configure_flags: --with-pydebug
+          - target: x86_64-unknown-linux-gnu/gcc-free-threading
+            runner: ubuntu-24.04
+            configure_flags: --disable-gil
+          - target: aarch64-unknown-linux-gnu/gcc
+            runner: ubuntu-24.04-arm
+            configure_flags: --with-pydebug
+    steps:
+      - uses: actions/checkout@v6
+        with:
+          persist-credentials: false
+      - uses: actions/setup-python@v6
+        with:
+          python-version: '3.11'
+      - name: Build and test
         run: |
           sudo bash -c "$(wget -O - https://apt.llvm.org/llvm.sh)" ./llvm.sh ${{ env.LLVM_VERSION }}
           export PATH="$(llvm-config-${{ env.LLVM_VERSION }} --bindir):$PATH"