🧪💅 Mv reusable-windows arch matrix outside

Previously, the reusable windows workflow defined a number of per-arch
jobs with a lot of copy-paste. Now, there is a single job and a matrix
definition on the calling side.

Author: webknjaz

.github/workflows/build.yml

@@ -182,14 +182,29 @@ jobs:
     name: 'Windows'
     needs: check_source
     if: fromJSON(needs.check_source.outputs.run_tests)
+    strategy:
+      matrix:
+        arch:
+        - Win32
+        - x64
+        - arm64
     uses: ./.github/workflows/reusable-windows.yml
+    with:
+      arch: ${{ matrix.arch }}
 
   build_windows_free_threading:
     name: 'Windows (free-threading)'
     needs: check_source
     if: fromJSON(needs.check_source.outputs.run_tests)
+    strategy:
+      matrix:
+        arch:
+        - Win32
+        - x64
+        - arm64
     uses: ./.github/workflows/reusable-windows.yml
     with:
+      arch: ${{ matrix.arch }}
       free-threading: true
 
   build_macos:

.github/workflows/reusable-windows.yml

@@ -1,6 +1,14 @@
 on:
   workflow_call:
     inputs:
+      arch:
+        description: CPU architecture
+        required: true
+        type: choice
+        options:
+        - Win32
+        - x64
+        - arm64
       free-threading:
         description: Whether to use no-GIL mode
         required: false
@@ -12,41 +20,30 @@ env:
     true
 
 jobs:
-  build_win32:
-    name: 'build and test (x86)'
-    runs-on: windows-latest
-    timeout-minutes: 60
-    steps:
-    - uses: actions/checkout@v4
-    - name: Build CPython
-      run: .\PCbuild\build.bat -e -d -v -p Win32 ${{ fromJSON(inputs.free-threading) && '--disable-gil' || '' }}
-    - name: Display build info
-      run: .\python.bat -m test.pythoninfo
-    - name: Tests
-      run: .\PCbuild\rt.bat -p Win32 -d -q --fast-ci ${{ fromJSON(inputs.free-threading) && '--disable-gil' || '' }}
-
-  build_win_amd64:
-    name: 'build and test (x64)'
+  build:
+    name: >-
+      build${{ inputs.arch != 'arm64' && ' and test' || '' }}
+      (${{ inputs.arch }})
     runs-on: windows-latest
     timeout-minutes: 60
     steps:
     - uses: actions/checkout@v4
     - name: Register MSVC problem matcher
+      if: inputs.arch != 'Win32'
       run: echo "::add-matcher::.github/problem-matchers/msvc.json"
     - name: Build CPython
-      run: .\PCbuild\build.bat -e -d -v -p x64 ${{ fromJSON(inputs.free-threading) && '--disable-gil' || '' }}
+      run: >-
+        .\PCbuild\build.bat
+        -e -d -v
+        -p ${{ inputs.arch }}
+        ${{ fromJSON(inputs.free-threading) && '--disable-gil' || '' }}
     - name: Display build info
+      if: inputs.arch != 'arm64'
       run: .\python.bat -m test.pythoninfo
     - name: Tests
-      run: .\PCbuild\rt.bat -p x64 -d -q --fast-ci ${{ fromJSON(inputs.free-threading) && '--disable-gil' || '' }}
-
-  build_win_arm64:
-    name: 'build (arm64)'
-    runs-on: windows-latest
-    timeout-minutes: 60
-    steps:
-    - uses: actions/checkout@v4
-    - name: Register MSVC problem matcher
-      run: echo "::add-matcher::.github/problem-matchers/msvc.json"
-    - name: Build CPython
-      run: .\PCbuild\build.bat -e -d -v -p arm64 ${{ fromJSON(inputs.free-threading) && '--disable-gil' || '' }}
+      if: inputs.arch != 'arm64'
+      run: >-
+        .\PCbuild\rt.bat
+        -p ${{ inputs.arch }}
+        -d -q --fast-ci
+        ${{ fromJSON(inputs.free-threading) && '--disable-gil' || '' }}