wheels: convert versions to match pypa spec, add uploading

* wheel versions now replace `+` with `.post` to match spec at https://packaging.python.org/en/latest/specifications/version-specifiers/
* CI updates:
  * Bump action versions
  * Disabled Windows for now and documented why
  * Added a new job to upload all wheels
  * Added new variable, `PYPI_INDEX`: fallback 'https://pypi.org/' if unset
  * Added new secret, `PYPI_TOKEN`
* .editorconfig now uses 2 spaces for YML (it kept setting mine to tabs
  and GitHub Actions doesn't like that)

.editorconfig

@@ -10,3 +10,7 @@ insert_final_newline = true
 indent_style = space
 indent_size = 2
 trim_trailing_whitespace = false
+
+[*.yml]
+indent_style = space
+indent_size = 2

.github/workflows/wheels.yml

@@ -1,8 +1,7 @@
 name: Build Wheels for PyPI
 on:
   workflow_dispatch:
-  push:
-    # tags: ["yosys-*"]
+
 jobs:
   build_wheels:
     strategy:
@@ -37,24 +36,27 @@ jobs:
               runner: "macos-14",
               archs: "arm64",
             },
-            {
-              name: "Windows Server 2019",
-              family: "windows",
-              runner: "windows-2019",
-              archs: "AMD64",
-            },
+            ## Windows is disabled because of an issue with compiling FFI as
+            ## under MinGW in the GitHub Actions environment (SHELL variable has
+            ## whitespace.)
+            # {
+            #   name: "Windows Server 2019",
+            #   family: "windows",
+            #   runner: "windows-2019",
+            #   archs: "AMD64",
+            # },
           ]
     name: Build Wheels | ${{ matrix.os.name }} | ${{ matrix.os.archs }}
     runs-on: ${{ matrix.os.runner }}
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
         with:
           fetch-depth: 0
           submodules: true
       - if: ${{ matrix.os.family == 'linux' }}
         name: "[Linux] Set up QEMU"
-        uses: docker/setup-qemu-action@v2
-      - uses: actions/setup-python@v3
+        uses: docker/setup-qemu-action@v3
+      - uses: actions/setup-python@v5
       - name: Get Boost Source
         shell: bash
         run: |
@@ -73,7 +75,7 @@ jobs:
           brew install flex bison
           echo "PATH=$(brew --prefix flex)/bin:$PATH" >> $GITHUB_ENV
           echo "PATH=$(brew --prefix bison)/bin:$PATH" >> $GITHUB_ENV
-      - if : ${{ matrix.os.family == 'windows' }}
+      - if: ${{ matrix.os.family == 'windows' }}
         name: "[Windows] Flex/Bison"
         run: |
           choco install winflexbison3
@@ -86,7 +88,7 @@ jobs:
         uses: pypa/cibuildwheel@v2.21.1
         env:
           # * APIs not supported by PyPy
-          # * Musllinux temporarily disabled because it takes too much time
+          # * Musllinux disabled because it increases build time from 48m to ~3h
           CIBW_SKIP: >
             pp*
             *musllinux*
@@ -109,6 +111,25 @@ jobs:
             makeFlags='BOOST_PYTHON_LIB=./boost/pfx/lib/libboost_python*.a CONFIG=clang'
           CIBW_BEFORE_BUILD: bash ./.github/workflows/wheels/cibw_before_build.sh
           CIBW_TEST_COMMAND: python3 -c "from pyosys import libyosys as ys;d=ys.Design();ys.run_pass('help', d)"
-      - uses: actions/upload-artifact@v3
+      - uses: actions/upload-artifact@v4
         with:
+          name: python-wheels
           path: ./wheelhouse/*.whl
+  upload_wheels:
+    name: Upload Wheels
+    runs-on: ubuntu-latest
+    needs: build_wheels
+    steps:
+      - uses: actions/download-artifact@v4
+        with:
+          name: python-wheels
+          path: "."
+      - run: |
+          ls
+          mkdir -p ./dist
+          mv *.whl ./dist
+      - name: Publish
+        uses: pypa/gh-action-pypi-publish@release/v1
+        with:
+          password: ${{ secrets.PYPI_TOKEN }}
+          repository-url: ${{ vars.PYPI_INDEX || 'https://upload.pypi.org/legacy/' }}

setup.py

@@ -25,7 +25,7 @@ yosys_version_rx = re.compile(r"YOSYS_VER\s*:=\s*([\w\-\+\.]+)")
 
 version = yosys_version_rx.search(
     open(os.path.join(__dir__, "Makefile"), encoding="utf8").read()
-)[1]
+)[1].replace("+", ".post")
 
 
 class libyosys_so_ext(Extension):