replace ctypes with subprocess

We no longer wrap libttfautohint using ctypes, but prefer to run the ttfautohint executable as a subprocess. This is easier to maintain/update.
Fixes #15.

.github/workflows/ci.yml

@@ -16,9 +16,6 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
-        with:
-          submodules: recursive
-          fetch-depth: 0
       - uses: actions/setup-python@v5
         with:
           python-version: "3.x"
@@ -41,7 +38,7 @@ jobs:
       matrix:
         os: [ "ubuntu-latest", "macos-13", "windows-latest" ]
     env:
-      CIBW_ENVIRONMENT: TTFAUTOHINTPY_BUNDLE_DLL=1
+      CIBW_ENVIRONMENT: TTFAUTOHINTPY_BUNDLE_EXE=1
       CIBW_BEFORE_ALL_LINUX: sh ci/docker-fixes.sh
       CIBW_BEFORE_ALL_MACOS: sh ci/osx-fixes.sh
       CIBW_ARCHS_LINUX: x86_64
@@ -58,9 +55,6 @@ jobs:
       CIBW_TEST_COMMAND_WINDOWS: cd /d {project} && coverage run --parallel-mode -m pytest
     steps:
       - uses: actions/checkout@v4
-        with:
-          submodules: recursive
-          fetch-depth: 0
       - name: "Set up MSYS2 (Windows)"
         uses: msys2/setup-msys2@v2
         if: startsWith(matrix.os, 'windows')
@@ -115,7 +109,7 @@ jobs:
           coverage xml
       - name: Upload coverage to Codecov
         if: ${{ !startsWith(matrix.os, 'ubuntu') }}
-        uses: codecov/codecov-action@v2
+        uses: codecov/codecov-action@v4
         with:
           file: coverage.xml
 

.gitignore

@@ -25,3 +25,14 @@ htmlcov/
 
 # OSX Finder
 .DS_Store
+
+# autogenerated vesion file
+src/python/ttfautohint/_version.py
+
+# executable built in-place
+src/python/ttfautohint/ttfautohint
+
+# uncompressed source tarballs
+src/c/ttfautohint/
+src/c/freetype/
+src/c/harfbuzz/

README.md

@@ -0,0 +1,16 @@
+![CI Status](https://github.com/fonttools/ttfautohint-py/actions/workflows/ci.yml/badge.svg?branch=main)
+# ttfautohint-py
+
+`ttfautohint-py` is a Python wrapper for [ttfautohint](https://freetype.org/ttfautohint/), a free auto-hinter for TrueType fonts created by Werner Lemberg ([@lemzwerg](https://github.com/lemzwerg)).
+
+As of v0.6, it runs the `ttfautohint` executable as a subprocess. Previous versions used [ctypes](https://docs.python.org/3/library/ctypes.html) to load the `libttfautohint` shared library, but that was hard to maintain and complicated to keep up to date with upstream `ttfautohint` hence we decided to switch to a simpler `subprocess` approach (cf. #15).
+
+Binary "wheel" packages are available for Linux (`manylinux2014`), macOS and Windows, for Python 3.8+, with 32 and 64 bit architecture. They can be installed from the Python Package Index ([PyPI](https://pypi.python.org/pypi/ttfautohint-py)) using the pip installer.
+
+    $ pip install ttfautohint-py
+
+The wheels include a precompiled `ttfautohint` executable which has no other dependency apart from system libraries. The [FreeType](https://www.freetype.org/) and the [HarfBuzz](https://github.com/harfbuzz/harfbuzz) libraries are compiled from source as static libraries and embedded in `ttfautohint`.
+
+To compile the `ttfautohint-py` package from source on Windows, you need to install [MSYS2](http://www.msys2.org/) and the latest MinGW-w64 toolchain. This is because the `ttfautohint` build system is based on autotools and thus requires a Unix-like environment.
+
+A `Makefile` is used to build the library and its static dependencies, thus the GNU [make](https://www.gnu.org/software/make/) executable must be on the `$PATH`, as this is called upon by the `setup.py` script.

setup.cfg

@@ -1,3 +1,11 @@
+[download]
+freetype_version = 2.13.3
+freetype_sha256 = 0550350666d427c74daeb85d5ac7bb353acba5f76956395995311a9c6f063289
+harfbuzz_version = 8.5.0
+harfbuzz_sha256 = 77e4f7f98f3d86bf8788b53e6832fb96279956e1c3961988ea3d4b7ca41ddc27
+ttfautohint_version = 1.8.4
+ttfautohint_sha256 = 8a876117fa6ebfd2ffe1b3682a9a98c802c0f47189f57d3db4b99774206832e1
+
 [bdist_wheel]
 universal = 1