CI: test CLANGARM64

test cross-compiled arm builds too

Author: jeremyd2019

.github/workflows/mingw.yml

@@ -3,20 +3,27 @@ on: [push, pull_request, workflow_dispatch]
 
 jobs:
   build:
-    runs-on: windows-2022
+    runs-on: ${{ matrix.runner }}
     strategy:
       fail-fast: false
       matrix:
-        msystem: ['MINGW64','MINGW32','UCRT64','CLANG64']
+        msystem: ['MINGW64','MINGW32','UCRT64','CLANG64','CLANGARM64']
         include:
           - msystem: MINGW64
             prefix: mingw-w64-x86_64
+            runner: windows-2022
           - msystem: MINGW32
             prefix: mingw-w64-i686
+            runner: windows-2022
           - msystem: UCRT64
             prefix: mingw-w64-ucrt-x86_64
+            runner: windows-2022
           - msystem: CLANG64
             prefix: mingw-w64-clang-x86_64
+            runner: windows-2022
+          - msystem: CLANGARM64
+            prefix: mingw-w64-clang-aarch64
+            runner: windows-11-arm
     steps:
       - name: Setup git
         run: |
@@ -26,7 +33,7 @@ jobs:
       - uses: msys2/setup-msys2@v2
         with:
           msystem: ${{ matrix.msystem }}
-          release: false
+          release: ${{ matrix.msystem == 'CLANGARM64' }}
           update: true
           install: >-
             make
@@ -279,19 +286,32 @@ jobs:
 
   cross-llvm-mingw-test:
     needs: [cross-llvm-mingw]
-    runs-on: windows-latest
+    runs-on: ${{ matrix.runner }}
     strategy:
       fail-fast: false
       matrix:
-        arch: ['x86_64', 'i686']
+        arch: ['x86_64', 'i686', 'aarch64', 'armv7']
+        include:
+          - arch: x86_64
+            runner: windows-latest
+          - arch: i686
+            runner: windows-latest
+          - arch: aarch64
+            runner: windows-11-arm
+          # we can test this for now, but Windows 11 24H2 dropped support for
+          # arm32
+          - arch: armv7
+            runner: windows-11-arm
     steps:
       - uses: actions/download-artifact@v4
         with:
           name: build-cross-llvm-mingw-${{ matrix.arch }}
 
       - name: 'Run tests'
         run: |
-          7z x install.zip
+          if (Test-Path ./_build) {rm -r -fo ./_build}
+          Add-Type -AssemblyName System.IO.Compression.FileSystem ;
+          [System.IO.Compression.ZipFile]::ExtractToDirectory("$PWD\install.zip", "$PWD")
           ./_build/install/usr/local/bin/python3.exe -c "import sysconfig, pprint; pprint.pprint(sysconfig.get_config_vars())"