Refactor Windows on ARM build script

.github/workflows/windows-arm.yml

@@ -0,0 +1,97 @@
+name: Windows-on-ARM
+
+on:
+  push:
+    branches: [ main ]
+  pull_request:
+    branches: [ main ]
+
+env:
+  OPENBLAS_COMMIT: "v0.3.29"
+  OPENBLAS_ROOT: "c:\\opt"
+  # Preserve working directory for calls into bash
+  # Without this, invoking bash will cd to the home directory
+  CHERE_INVOKING: "yes"
+  BASH_PATH: "C:\\Program Files\\Git\\bin\\bash.exe"
+  PLAT: arm64
+  INTERFACE64: 0
+  BUILD_BITS: 32
+
+jobs:
+  build:
+    runs-on: windows-11-arm
+    timeout-minutes: 90
+
+    steps:
+
+    - uses: actions/[email protected]
+
+    - name: Set up Python
+      uses: actions/setup-python@v5
+      with:
+        python-version: 3.12
+        architecture: arm64
+
+    - name: Setup visual studio
+      uses: microsoft/setup-msbuild@v2
+
+    - name: Download, install 7zip.
+      run: |
+        Invoke-WebRequest https://www.7-zip.org/a/7z2409-arm64.exe -UseBasicParsing -OutFile 7z_arm.exe
+        Start-Process -FilePath ".\7z_arm.exe" -ArgumentList "/S" -Wait
+        echo "C:\Program Files\7-Zip" | Out-File -FilePath $env:GITHUB_PATH -Encoding utf8 -Append
+
+    - name: Download and install LLVM installer
+      run: |
+        Invoke-WebRequest https://github.com/llvm/llvm-project/releases/download/llvmorg-19.1.5/LLVM-19.1.5-woa64.exe -UseBasicParsing -OutFile LLVM-woa64.exe
+        Start-Process -FilePath ".\LLVM-woa64.exe" -ArgumentList "/S" -Wait
+        echo "C:\Program Files\LLVM\bin" | Out-File -FilePath $env:GITHUB_PATH -Encoding utf8 -Append
+
+    - name: Update CMake for WoA
+      run: |
+        pip install cmake
+        get-command cmake
+
+    - name: Build
+      run: |
+        git submodule update --init --recursive
+        .\tools\build_steps_win_arm64.bat
+
+    - name: Pack
+      run: |
+        cd local
+        cp -r "scipy_openblas${env:BUILD_BITS}" $env:BUILD_BITS
+        7z a ../builds/openblas-${env:PLAT}-${env:INTERFACE64}.zip -tzip $env:BUILD_BITS
+
+    - name: Test 32-bit interface wheel
+      run: |
+        python -m pip install --no-index --find-links dist scipy_openblas32
+        python -m scipy_openblas32
+        python -c "import scipy_openblas32; print(scipy_openblas32.get_pkg_config())"
+
+    - uses: actions/[email protected]
+      with:
+        name: wheels-${{ env.PLAT }}-${{ env.INTERFACE64 }}
+        path: dist/scipy_openblas*.whl
+
+    - uses: actions/[email protected]
+      with:
+        name: openblas-${{ env.PLAT }}-${{ env.INTERFACE64 }}
+        path: builds/openblas*.zip
+
+    - name: Install Anaconda client
+      run: |
+        Invoke-WebRequest https://static.rust-lang.org/rustup/dist/aarch64-pc-windows-msvc/rustup-init.exe -UseBasicParsing -Outfile rustup-init.exe
+        .\rustup-init.exe -y
+        $env:PATH="$env:PATH;$env:USERPROFILE\.cargo\bin"
+        pip install anaconda-client
+
+    - name: Upload
+      # see https://github.com/marketplace/actions/setup-miniconda for why
+      # `-el {0}` is required.
+      shell: bash -el {0}
+      env:
+       ANACONDA_SCIENTIFIC_PYTHON_UPLOAD: ${{ secrets.ANACONDA_SCIENTIFIC_PYTHON_UPLOAD }}
+      run: |
+        source tools/upload_to_anaconda_staging.sh
+        upload_wheels

tools/build_steps_win_arm64.bat

@@ -7,46 +7,45 @@
 :: Expects these binaries on the PATH:
 :: clang-cl, flang-new, cmake, perl
 
+:: First commit containing WoA build fixes.
+:: Minimum OpenBLAS commit to build; we'll update to this if commit not
+:: present.
+set first_woa_buildable_commit="de2380e5a6149706a633322a16a0f66faa5591fc"
+
 @echo off
 setlocal enabledelayedexpansion
 
 if "%1"=="" (
-    set BUILD_BIT=64
+    set BUILD_BITS=64
 ) else (
-    set BUILD_BIT=%1
+    set BUILD_BITS=%1
 )
-echo Building for %BUILD_BIT%-bit configuration...
+echo Building for %BUILD_BITS%-bit configuration...
 
 :: Define destination directory
-move "..\local\scipy_openblas64" "..\local\scipy_openblas32"
-set "DEST_DIR=%CD%\..\local\scipy_openblas32"
-cd ..
-
-:: Check if 'openblas' folder exists and is empty
-if exist "openblas" (
-    dir /b "openblas" | findstr . >nul
-    if errorlevel 1 (
-        echo OpenBLAS folder exists but is empty. Deleting and recloning...
-        rmdir /s /q "openblas"
-    )
-)
+pushd "%~dp0\.."
+set "ob_out_root=%CD%\local\scipy_openblas"
+set "ob_64=%ob_out_root%64"
+set "ob_32=%ob_out_root%32"
+if exist "%ob_64%" xcopy "%ob_64%" "%ob_32%" /I /Y
+set "DEST_DIR=%ob_32%"
+
+:: Clone OpenBLAS
+echo Cloning OpenBLAS repository with submodules...
+git submodule update --init --recursive OpenBLAS
+if errorlevel 1 exit /b 1
 
-:: Clone OpenBLAS if not present
-if not exist "openblas" (
-    echo Cloning OpenBLAS repository with submodules...
-    git clone --recursive https://github.com/OpenMathLib/OpenBLAS.git OpenBLAS
-    if errorlevel 1 exit /b 1
+:: Enter OpenBLAS directory and checkout buildable commit
+cd OpenBLAS
+git merge-base --is-ancestor %first_woa_buildable_commit% HEAD 2>NUL
+if errorlevel 1 (
+    echo Updating to WoA buildable commit for OpenBLAS
+    git checkout %first_woa_buildable_commit%
 )
 
-:: Enter OpenBLAS directory and checkout develop branch
-cd openblas
-git checkout develop
-
-echo Checked out to the latest branch of OpenBLAS.
-
 :: Create build directory and navigate to it
-if not exist build mkdir build
-cd build
+if exist build (rmdir /S /Q build || exit /b 1)
+mkdir build || exit /b 1 & cd build || exit /b 1
 
 echo Setting up ARM64 Developer Command Prompt and running CMake...
 
@@ -55,7 +54,7 @@ for /f "usebackq tokens=*" %%i in (`"C:\Program Files (x86)\Microsoft Visual Stu
 
 :: Run CMake and Ninja build
 cmake .. -G Ninja -DCMAKE_BUILD_TYPE=Release -DTARGET=ARMV8 -DBUILD_SHARED_LIBS=ON -DARCH=arm64 ^
--DBINARY=%BUILD_BIT% -DCMAKE_SYSTEM_PROCESSOR=ARM64 -DCMAKE_C_COMPILER=clang-cl ^
+-DBINARY=%BUILD_BITS% -DCMAKE_SYSTEM_PROCESSOR=ARM64 -DCMAKE_C_COMPILER=clang-cl ^
 -DCMAKE_Fortran_COMPILER=flang-new -DSYMBOLPREFIX="scipy_" -DLIBNAMEPREFIX="scipy_"
 if errorlevel 1 exit /b 1
 
@@ -67,7 +66,8 @@ echo Build complete. Returning to Batch.
 :: Rewrite the name of the project to scipy-openblas32
 echo Rewrite to scipy_openblas32
 cd ../..
-powershell -Command "(Get-Content 'pyproject.toml') -replace 'openblas64', 'openblas32' | Set-Content 'pyproject.toml'"
+set out_pyproject=pyproject_64_32.toml
+powershell -Command "(Get-Content 'pyproject.toml') -replace 'openblas64', 'openblas32' | Set-Content %out_pyproject%
 powershell -Command "(Get-Content 'local\scipy_openblas32\__main__.py') -replace 'openblas64', 'openblas32' | Out-File 'local\scipy_openblas32\__main__.py' -Encoding utf8"
 powershell -Command "(Get-Content 'local\scipy_openblas32\__init__.py') -replace 'openblas64', 'openblas32' | Out-File 'local\scipy_openblas32\__init__.py' -Encoding utf8"
 powershell -Command "(Get-Content 'local\scipy_openblas32\__init__.py') -replace 'openblas_get_config64_', 'openblas_get_config' | Out-File 'local\scipy_openblas32\__init__.py' -Encoding utf8"
@@ -76,7 +76,7 @@ powershell -Command "(Get-Content 'local\scipy_openblas32\__init__.py') -replace
 :: Prepare destination directory
 cd OpenBLAS/build
 echo Preparing destination directory at %DEST_DIR%...
-if not exist "%DEST_DIR%\lib\cmake\openblas" mkdir "%DEST_DIR%\lib\cmake\openblas"
+if not exist "%DEST_DIR%\lib\cmake\OpenBLAS" mkdir "%DEST_DIR%\lib\cmake\OpenBLAS"
 if not exist "%DEST_DIR%\include" mkdir "%DEST_DIR%\include"
 
 :: Move library files
@@ -99,7 +99,7 @@ if exist openblasconfigversion.cmake copy /Y openblasconfigversion.cmake "%DEST_
 :: Copy header files
 echo Copying generated header files...
 if exist generated xcopy /E /Y generated "%DEST_DIR%\include\"
-if exist lapacke_mangling copy /Y lapacke_mangling "%DEST_DIR%\include\"
+if exist lapacke_mangling.h copy /Y lapacke_mangling.h "%DEST_DIR%\include\"
 if exist openblas_config.h copy /Y openblas_config.h "%DEST_DIR%\include\"
 
 
@@ -113,9 +113,13 @@ cd ../..
 
 :: Build the Wheel & Install It
 echo Running 'python -m build' to build the wheel...
+python -c "import build" 2>NUL || pip install build
+move /Y  pyproject.toml pyproject.toml.bak
+move /Y  %out_pyproject% pyproject.toml
 python -m build
 if errorlevel 1 exit /b 1
-
+move /Y pyproject.toml.bak pyproject.toml
+
 :: Locate the built wheel
 for /f %%f in ('dir /b dist\scipy_openblas*.whl 2^>nul') do set WHEEL_FILE=dist\%%f
 
@@ -129,4 +133,4 @@ pip install "%WHEEL_FILE%"
 if errorlevel 1 exit /b 1
 
 echo Done.
-exit /b 0
+exit /b 0