Wheel fails to build for older versions of pygit2

[nealkruis]

I have a GitHub project that installs pygit2 (version 1.13.3) in a workflow action. It was working perfectly fine on macOS 14 (latest) until recently when I started getting the 'git2.h' file not found error. I've seen that this error is common for cases where the wheel needs to be built and libgit2 is not installed, but I'm not sure that's the case here since it was working fine earlier.

It's entirely possible that this is not a pygit2 issue, but rather an issue with the GitHub hosted macOS runner image. I noticed the image updated to macOS 14.7.1 and to Python 3.13, though I'm testing in multiple python environments (3.9-3.13).

Here are the details about the runner before the error occurred:

Current runner version: '2.319.1'
Operating System
  macOS
  14.6.1
  23G93
Runner Image
  Image: macos-14-arm64
  Version: 20240918.8
  Included Software: https://github.com/actions/runner-images/blob/macos-14-arm64/20240918.8/images/macos/macos-14-arm64-Readme.md
  Image Release: https://github.com/actions/runner-images/releases/tag/macos-14-arm64%2F20240918.8'

and after:

Current runner version: '2.320.0'
Operating System
  macOS
  14.7.1
  23H222
Runner Image
  Image: macos-14-arm64
  Version: 20241108.442
  Included Software: https://github.com/actions/runner-images/blob/macos-14-arm64/20241108.442/images/macos/macos-14-arm64-Readme.md
  Image Release: https://github.com/actions/runner-images/releases/tag/macos-14-arm64%2F20241108.442

My understanding is that if a wheel is available on PyPi, pip shouldn't need libgit2 to be installed in order to install pygit2. Is that correct? And by now, wheels for 1.13.3 should have been around for almost a year?

I appreciate any ideas on how to understand and resolve this issue.

Here is the failed build output:

  ChefBuildError

  Backend subprocess exited when trying to invoke build_wheel
  
  running bdist_wheel
  running build
  running build_py
  creating build/lib.macosx-14.0-arm64-cpython-313/pygit2
  copying pygit2/enums.py -> build/lib.macosx-14.0-arm64-cpython-313/pygit2
  copying pygit2/config.py -> build/lib.macosx-14.0-arm64-cpython-313/pygit2
  copying pygit2/index.py -> build/lib.macosx-14.0-arm64-cpython-313/pygit2
  copying pygit2/packbuilder.py -> build/lib.macosx-14.0-arm64-cpython-313/pygit2
  copying pygit2/credentials.py -> build/lib.macosx-14.0-arm64-cpython-313/pygit2
  copying pygit2/remote.py -> build/lib.macosx-14.0-arm64-cpython-313/pygit2
  copying pygit2/__init__.py -> build/lib.macosx-14.0-arm64-cpython-313/pygit2
  copying pygit2/_build.py -> build/lib.macosx-14.0-arm64-cpython-313/pygit2
  copying pygit2/refspec.py -> build/lib.macosx-14.0-arm64-cpython-313/pygit2
  copying pygit2/submodule.py -> build/lib.macosx-14.0-arm64-cpython-313/pygit2
  copying pygit2/utils.py -> build/lib.macosx-14.0-arm64-cpython-313/pygit2
  copying pygit2/blame.py -> build/lib.macosx-14.0-arm64-cpython-313/pygit2
  copying pygit2/callbacks.py -> build/lib.macosx-14.0-arm64-cpython-313/pygit2
  copying pygit2/settings.py -> build/lib.macosx-14.0-arm64-cpython-313/pygit2
  copying pygit2/filter.py -> build/lib.macosx-14.0-arm64-cpython-313/pygit2
  copying pygit2/errors.py -> build/lib.macosx-14.0-arm64-cpython-313/pygit2
  copying pygit2/_run.py -> build/lib.macosx-14.0-arm64-cpython-313/pygit2
  copying pygit2/repository.py -> build/lib.macosx-14.0-arm64-cpython-313/pygit2
  copying pygit2/ffi.py -> build/lib.macosx-14.0-arm64-cpython-313/pygit2
  copying pygit2/blob.py -> build/lib.macosx-14.0-arm64-cpython-313/pygit2
  copying pygit2/_pygit2.pyi -> build/lib.macosx-14.0-arm64-cpython-313/pygit2
  creating build/lib.macosx-14.0-arm64-cpython-313/pygit2/decl
  copying pygit2/decl/oid.h -> build/lib.macosx-14.0-arm64-cpython-313/pygit2/decl
  copying pygit2/decl/index.h -> build/lib.macosx-14.0-arm64-cpython-313/pygit2/decl
  copying pygit2/decl/attr.h -> build/lib.macosx-14.0-arm64-cpython-313/pygit2/decl
  copying pygit2/decl/blame.h -> build/lib.macosx-14.0-arm64-cpython-313/pygit2/decl
  copying pygit2/decl/pack.h -> build/lib.macosx-14.0-arm64-cpython-313/pygit2/decl
  copying pygit2/decl/revert.h -> build/lib.macosx-14.0-arm64-cpython-313/pygit2/decl
  copying pygit2/decl/net.h -> build/lib.macosx-14.0-arm64-cpython-313/pygit2/decl
  copying pygit2/decl/config.h -> build/lib.macosx-14.0-arm64-cpython-313/pygit2/decl
  copying pygit2/decl/types.h -> build/lib.macosx-14.0-arm64-cpython-313/pygit2/decl
  copying pygit2/decl/repository.h -> build/lib.macosx-14.0-arm64-cpython-313/pygit2/decl
  copying pygit2/decl/clone.h -> build/lib.macosx-14.0-arm64-cpython-313/pygit2/decl
  copying pygit2/decl/callbacks.h -> build/lib.macosx-14.0-arm64-cpython-313/pygit2/decl
  copying pygit2/decl/submodule.h -> build/lib.macosx-14.0-arm64-cpython-313/pygit2/decl
  copying pygit2/decl/errors.h -> build/lib.macosx-14.0-arm64-cpython-313/pygit2/decl
  copying pygit2/decl/merge.h -> build/lib.macosx-14.0-arm64-cpython-313/pygit2/decl
  copying pygit2/decl/graph.h -> build/lib.macosx-14.0-arm64-cpython-313/pygit2/decl
  copying pygit2/decl/describe.h -> build/lib.macosx-14.0-arm64-cpython-313/pygit2/decl
  copying pygit2/decl/stash.h -> build/lib.macosx-14.0-arm64-cpython-313/pygit2/decl
  copying pygit2/decl/remote.h -> build/lib.macosx-14.0-arm64-cpython-313/pygit2/decl
  copying pygit2/decl/strarray.h -> build/lib.macosx-14.0-arm64-cpython-313/pygit2/decl
  copying pygit2/decl/buffer.h -> build/lib.macosx-14.0-arm64-cpython-313/pygit2/decl
  copying pygit2/decl/diff.h -> build/lib.macosx-14.0-arm64-cpython-313/pygit2/decl
  copying pygit2/decl/common.h -> build/lib.macosx-14.0-arm64-cpython-313/pygit2/decl
  copying pygit2/decl/proxy.h -> build/lib.macosx-14.0-arm64-cpython-313/pygit2/decl
  copying pygit2/decl/indexer.h -> build/lib.macosx-14.0-arm64-cpython-313/pygit2/decl
  copying pygit2/decl/refspec.h -> build/lib.macosx-14.0-arm64-cpython-313/pygit2/decl
  copying pygit2/decl/transport.h -> build/lib.macosx-14.0-arm64-cpython-313/pygit2/decl
  copying pygit2/decl/checkout.h -> build/lib.macosx-14.0-arm64-cpython-313/pygit2/decl
  copying pygit2/decl/commit.h -> build/lib.macosx-14.0-arm64-cpython-313/pygit2/decl
  running build_ext
  generating cffi module 'build/temp.macosx-14.0-arm64-cpython-313/pygit2._libgit2.c'
  creating build/temp.macosx-14.0-arm64-cpython-313
  building 'pygit2._pygit2' extension
  creating build/temp.macosx-14.0-arm64-cpython-313/src
  clang -fno-strict-overflow -Wsign-compare -Wunreachable-code -fno-common -dynamic -DNDEBUG -g -O3 -Wall -I/usr/local/include -I/private/var/folders/1y/56hdyx6x0_jb18k7b4ys9b6w0000gn/T/tmp7lid99ra/.venv/include -I/opt/homebrew/opt/[email protected]/Frameworks/Python.framework/Versions/3.13/include/python3.13 -c src/blob.c -o build/temp.macosx-14.0-arm64-cpython-313/src/blob.o
  src/blob.c:30:10: fatal error: 'git2.h' file not found
  #include <git2.h>
           ^~~~~~~~
  1 error generated.
  error: command '/usr/bin/clang' failed with exit code 1