add entrypoint.txt for pyconf-pypi, cleanup

Author: mattip

.github/workflows/windows.yml

@@ -115,6 +115,7 @@ jobs:
         fi
         sed -e "s/bin/lib/" -i local/scipy_openblas64/lib/cmake/openblas/OpenBLASConfig.cmake
         sed -e "s/dll/lib/" -i local/scipy_openblas64/lib/cmake/openblas/OpenBLASConfig.cmake
+        mkdir  local/scipy_openblas64/lib/pkgconfig
         if [[ "${INTERFACE64}" != "1" ]]; then
             mv local/scipy_openblas64 local/scipy_openblas32
             # rewrite the name of the project to scipy-openblas32
@@ -125,6 +126,9 @@ jobs:
             sed -e "s/cflags =.*/cflags = '-DBLAS_SYMBOL_PREFIX=scipy_'/" -i local/scipy_openblas32/__init__.py
             sed -e "s/openblas64/openblas32/" -i local/scipy_openblas32/__init__.py
             sed -e "s/openblas64/openblas32/" -i local/scipy_openblas32/__main__.py
+            PYTHONPATH=$PWD/local python -c "import scipy_openblas32 as s; print(s.get_pkg_config(use_prefix=True))" > local/scipy_openblas32/lib/pkgconfig/scipy-openblas.pc
+        else
+            PYTHONPATH=$PWD/local python -c "import scipy_openblas64 as s; print(s.get_pkg_config(use_prefix=True))" > local/scipy_openblas64/lib/pkgconfig/scipy-openblas.pc
         fi
         echo "" >> LICENSE.txt
         echo "----" >> LICENSE.txt
@@ -153,13 +157,17 @@ jobs:
         python -m pip install --no-index --find-links dist scipy_openblas64
         python -m scipy_openblas64
         python -c "import scipy_openblas64; print(scipy_openblas64.get_pkg_config())"
+        python -m pip install pkgconf
+        python -m pkgconf scipy-openblas --cflags
 
     - name: Test 32-bit interface wheel
       if: matrix.INTERFACE64 != '1'
       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())"
+        python -m pip install pkgconf
+        python -m pkgconf scipy-openblas --cflags
 
     - uses: conda-incubator/setup-miniconda@v3.1.1
       with:

README.md

@@ -24,7 +24,7 @@ First, tarballs are built using `build_lib` in `tools/build_steps.sh` (on
 posix in a docker and drectly on macos) or `tools/build_steps_windows.sh` on windows.
 
 Then the shared object and header files from the tarball are used to build the
-wheel via `tools/build_wheel.sh`, and the wheels uploaded to
+wheel via `tools/build_prepare_wheel.sh` and `pip build wheel`, and the wheels uploaded to
 https://anaconda.org/scientific=python-nightly-wheels/scipy_openblas32 and
 https://anaconda.org/scientific=python-nightly-wheels/scipy_openblas64 via
 `tools/upload_to_anaconda_staging.sh`. For a release, the wheels are uploaded

ci-before-build.sh

@@ -73,4 +73,4 @@ unset -f popd
 source build-openblas.sh
 
 # Build wheel
-source tools/build_prepare.sh
+source tools/build_prepare_wheel.sh

ci-test.sh

@@ -20,3 +20,6 @@ else
   # $PYTHON -m pip install --no-index --find-links /tmp/cibuildwheel/repaired_wheel scipy_openblas64
   $PYTHON -m scipy_openblas64
 fi
+
+$PYTHON -m pip install pkgconf
+$PYTHON -m pkgconf scipy-openblas --cflags

local/scipy_openblas64/__init__.py

@@ -60,7 +60,7 @@ def get_library(fullname=False):
             # remove the leading lib from libscipy_openblas*
             return os.path.splitext(libs[0])[0][3:]
 
-def get_pkg_config(use_preloading=False):
+def get_pkg_config(use_preloading=False, use_prefix=False):
     """Return a multi-line string that, when saved to a file, can be used with
     pkg-config for build systems like meson
 
@@ -81,9 +81,16 @@ def get_pkg_config(use_preloading=False):
         else:
             libs_flags = f"${{libdir}}/{get_library(fullname=True)} -Wl,-rpath,${{libdir}}"
     cflags = "-DBLAS_SYMBOL_PREFIX=scipy_ -DBLAS_SYMBOL_SUFFIX=64_ -DHAVE_BLAS_ILP64 -DOPENBLAS_ILP64_NAMING_SCHEME"
+    if use_prefix:
+        libdir = "${pcfiledir}/../../lib
+        incdir = "${pcfiledir}/../../include
+    else:
+        # Don't use `$prefix` since the file may be located outside the package tree
+        libdir = get_lib_dir()
+        incdir = get_include_dir()
     return dedent(f"""\
-        libdir={get_lib_dir()}
-        includedir={get_include_dir()}
+        libdir={libdir}
+        includedir={incdir}
         openblas_config= {get_openblas_config()}
         version={get_openblas_config().split(" ")[1]}
         extralib={extralib}

pyproject.toml

@@ -57,3 +57,6 @@ environment-pass = [
 ]
 [tool.cibuildwheel.linux]
 environment = { CC = "/opt/clang/bin/clang", CXX = "/opt/clang/bin/clang++", LDFLAGS = "-fuse-ld=lld" }
+
+[tool.entry-points.pkg_config]
+scipy-openblas = scipy_openblas64/lib/pkgconfig

tools/build_prepare.sh tools/build_prepare_wheel.shtools/build_prepare.sh renamed to tools/build_prepare_wheel.sh

@@ -11,7 +11,6 @@ PYTHON=${PYTHON:-python3.9}
 
 mkdir -p local/openblas
 mkdir -p dist
-$PYTHON -m pip install wheel auditwheel
 
 tar -C local/scipy_openblas64 --strip-components=2 -xf libs/openblas.tar.gz
 
@@ -40,6 +39,7 @@ if [ $(uname) == "Darwin" ]; then
 fi
 
 rm -rf local/scipy_openblas64/lib/pkgconfig
+mkdir local/scipy_openblas64/lib/pkgconfig
 echo "" >> LICENSE.txt
 echo "----" >> LICENSE.txt
 echo "" >> LICENSE.txt
@@ -63,6 +63,9 @@ if [ "${INTERFACE64}" != "1" ]; then
     sed -e "s/openblas64/openblas32/" -i.bak local/scipy_openblas32/__main__.py
     sed -e "s/openblas64/openblas32/" -i.bak local/scipy_openblas32/__init__.py
     rm local/scipy_openblas32/*.bak
+    PYTHONPATH=$PWD/local python -c "import scipy_openblas32 as s; print(s.get_pkg_config(use_prefix=True))" > local/scipy_openblas32/lib/pkgconfig/scipy-openblas.pc
+else
+    PYTHONPATH=$PWD/local python -c "import scipy_openblas64 as s; print(s.get_pkg_config(use_prefix=True))" > local/scipy_openblas64/lib/pkgconfig/scipy-openblas.pc
 fi
 
 rm -rf dist/*

tools/build_steps_win_arm64.bat

@@ -123,10 +123,18 @@ if "%if_bits%"=="32" (
     cd ../..
     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"
-    powershell -Command "(Get-Content 'local\scipy_openblas32\__init__.py') -replace 'cflags =.*', 'cflags = \"-DBLAS_SYMBOL_PREFIX=scipy_\"' | Out-File 'local\scipy_openblas32\__init__.py' -Encoding utf8"
+    cd local
+    move scipy_openblas64 scipy_openblas32
+    powershell -Command "(Get-Content 'scipy_openblas32\__main__.py') -replace 'openblas64', 'openblas32' | Out-File 'scipy_openblas32\__main__.py' -Encoding utf8"
+    powershell -Command "(Get-Content 'scipy_openblas32\__init__.py') -replace 'openblas64', 'openblas32' | Out-File 'scipy_openblas32\__init__.py' -Encoding utf8"
+    powershell -Command "(Get-Content 'scipy_openblas32\__init__.py') -replace 'openblas_get_config64_', 'openblas_get_config' | Out-File 'scipy_openblas32\__init__.py' -Encoding utf8"
+    powershell -Command "(Get-Content 'scipy_openblas32\__init__.py') -replace 'cflags =.*', 'cflags = \"-DBLAS_SYMBOL_PREFIX=scipy_\"' | Out-File 'local\scipy_openblas32\__init__.py' -Encoding utf8"
+    mkdir scipy_openblas32\lib\pkgconfig
+    python -c "import scipy_openblas32 as s; print(s.get_pkg_config(use_prefix=True))" > scipy_openblas32/lib/pkgconfig/scipy-openblas.pc
+) else (
+    cd local
+    mkdir scipy_openblas64\lib\pkgconfig
+    python -c "import scipy_openblas64 as s; print(s.get_pkg_config(use_prefix=True))" > scipy_openblas64/lib/pkgconfig/scipy-openblas.pc
 )
 
 :: Prepare destination directory
@@ -208,5 +216,10 @@ echo Installing wheel: %WHEEL_FILE%
 pip install "%WHEEL_FILE%"
 if errorlevel 1 exit /b 1
 
+echo Testing
+python -m pip install pkgconf
+python -m pkgconf scipy-openblas --cflags
+if errorlevel 1 exit /b 1
+
 echo Done.
 exit /b 0