Add workflow for building wheels (#67)

.github/workflows/wheel.yml

@@ -0,0 +1,79 @@
+name: wheel
+
+on: [push, workflow_dispatch]
+
+jobs:
+  sdist:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v2
+    - name: Reorganize repository
+      run: |
+        git config user.email ""
+        git config user.name "dummy"
+        git subtree add --prefix python/subprojects/minpack . HEAD
+        git mv python/{mesonpep517,pyproject}.toml
+        git commit -m "Python dist"
+    - run: |
+        pipx run build . --sdist
+      working-directory: python
+    - uses: actions/upload-artifact@v3
+      with:
+        name: minpack-python-sdist
+        path: python/dist/*.tar.gz
+        retention-days: 5
+
+  manylinux:
+    needs:
+      - sdist
+    runs-on: ubuntu-latest
+    container: condaforge/linux-anvil-cos7-x86_64
+    strategy:
+      fail-fast: false
+      matrix:
+        python: ['3.7', '3.8', '3.9', '3.10']
+
+    defaults:
+      run:
+        shell: ${{ matrix.shell || 'bash -l {0}' }}
+
+    steps:
+    - name: Create environment
+      run: >-
+        mamba create -n wheel
+        --yes
+        c-compiler
+        fortran-compiler
+        python=${{ matrix.python }}
+        auditwheel
+        git
+        python
+        pip
+        python-build
+        pkgconfig
+        patchelf
+        cffi
+        numpy
+        meson
+        unzip
+        wheel
+    - name: Download sdist
+      uses: actions/download-artifact@v2
+      with:
+        name: minpack-python-sdist
+    - name: Build wheel
+      run: |
+        conda activate wheel
+        set -ex
+        tar xvf minpack-*.tar.gz
+        python -m build minpack-*/ --wheel
+        auditwheel show minpack-*/dist/*.whl
+        auditwheel repair -w minpack-*/dist minpack-*/dist/*.whl --plat ${{ env.plat }}
+        rm minpack-*/dist/*-linux_x86_64.whl
+      env:
+        plat: manylinux${{ matrix.python == '3.6' && '2010' || '_2_12' }}_x86_64
+    - uses: actions/upload-artifact@v3
+      with:
+        name: minpack-python-${{ matrix.python }}
+        path: minpack-*/dist/*.whl
+        retention-days: 5

meson.build

@@ -31,6 +31,7 @@ minpack_inc = minpack_lib.private_dir_include()
 minpack_dep = declare_dependency(
   link_with: minpack_lib,
   include_directories: [minpack_inc, include_directories('include')],
+  variables: {'includedir': meson.current_source_dir() / 'include'},
 )
 
 minpack_lic = files(

python/include/_minpack.h

@@ -0,0 +1 @@
+#include "minpack.h"

python/meson.build

@@ -1,14 +1,24 @@
 project(
   'minpack',
   'c',
-  meson_version: '>=0.53',
+  version: '2.0.0',
+  meson_version: '>=0.55',
   default_options: [
     'buildtype=debugoptimized',
   ],
 )
 install = true
 
-minpack_dep = dependency('minpack', version: '>=2.0.0')
-minpack_header = files('../include/minpack.h')
+minpack_dep = dependency(
+  meson.project_name(),
+  version: '>=@0@'.format(meson.project_version()),
+  fallback: [meson.project_name(), '@0@_dep'.format(meson.project_name())],
+  default_options: [
+    'default_library=static',
+    'api=true',
+    'python=false',
+  ],
+)
+minpack_header = files('include'/'_minpack.h')
 
 subdir('minpack')

python/mesonpep517.toml

@@ -0,0 +1,15 @@
+[build-system]
+requires = ["meson-python", "cffi"]
+build-backend = "mesonpy"
+
+[project]
+name = "minpack"
+version = "2.0.0"
+description = "Minpack includes software for solving nonlinear equations and nonlinear least squares problems"
+readme = "README.rst"
+urls.repository = "https://github.com/fortran-lang/minpack"
+dependencies = [
+   "cffi",
+   "numpy",
+]
+requires-python = ">=3.6"

python/minpack/meson.build

@@ -13,8 +13,19 @@ python_dep = python.dependency(required: true)
 # Python's CFFI is horrible in working with preprocessor statements,
 # therefore, we have to preprocess the header before passing it to the ffibuilder
 minpack_pp = configure_file(
-  command: [cc, '-DMINPACK_CFFI=1', '-E', '@INPUT@'],
-  input: minpack_header[0],
+  command: [
+    cc,
+    '-I@0@'.format(
+      minpack_dep.get_variable(
+        pkgconfig: 'includedir',
+        internal: 'includedir',
+      ).split().get(0)
+    ),
+    '-DMINPACK_CFFI=1',
+    '-E',
+    '@INPUT@',
+  ],
+  input: minpack_header,
   output: '@[email protected]'.format(ext_module),
   capture: true,
 )