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build(python): migrate to uv (#5222)

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This commit is contained in:
David Lane
2026-05-30 17:37:14 -04:00
committed by GitHub
parent 4e9e0d4c66
commit 0e35140576
14 changed files with 801 additions and 76 deletions
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60
cmake/dependencies/glad.cmake
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@@ -18,14 +18,14 @@ include_guard(GLOBAL)
# cache before add_subdirectory() causes glad's find_package(PythonInterp) to
# skip its own search and reuse our interpreter directly.
#
# GLAD_SKIP_PIP_INSTALL is a hard override for environments where pip cannot run
# GLAD_SKIP_PIP_INSTALL is a hard override for environments where Python dependency installs cannot run
# at all (e.g. Flatpak, Homebrew). When OFF (the default) the code below checks
# whether jinja2+setuptools are importable and pip-installs them if they are not.
# whether jinja2+setuptools are importable and installs them with uv if they are not.
# When ON the caller is responsible for supplying a Python that already has jinja2,
# typically via -DPython_EXECUTABLE=/path/to/venv/python.
option(GLAD_SKIP_PIP_INSTALL
"Hard-skip pip install of jinja2 even if it is not importable. \
Only needed in sandboxed build environments (e.g. Flatpak, Homebrew) where pip cannot run." OFF)
"Hard-skip Python dependency installation for jinja2 even if it is not importable. \
Only needed in sandboxed build environments (e.g. Flatpak, Homebrew) where Python dependency installs cannot run." OFF)
if(NOT GLAD_SKIP_PIP_INSTALL)
# glad's generator requires Python >= 3.8 (importlib.metadata) and jinja2.
@@ -115,41 +115,47 @@ if(NOT GLAD_SKIP_PIP_INSTALL)
)
if(NOT _glad_deps_import_result EQUAL 0)
message(STATUS "glad: jinja2 or setuptools not found in ${Python_EXECUTABLE}, installing via pip...")
find_program(UV_EXECUTABLE uv)
if(NOT UV_EXECUTABLE)
message(FATAL_ERROR
"glad: jinja2 or setuptools not found in ${Python_EXECUTABLE}, and uv is not available.\n"
"Install uv, or provide a Python interpreter with glad dependencies installed and set "
"-DGLAD_SKIP_PIP_INSTALL=ON.")
endif()
# Some system Python installations (e.g. FreeBSD ports) ship without pip.
# Try to bootstrap it via ensurepip before falling back to the pip install.
set(_glad_python_venv "${CMAKE_BINARY_DIR}/glad-python")
message(STATUS "glad: jinja2 or setuptools not found in ${Python_EXECUTABLE}, installing via uv...")
execute_process(
COMMAND "${Python_EXECUTABLE}" -m pip --version
RESULT_VARIABLE _pip_available
OUTPUT_QUIET ERROR_QUIET
COMMAND "${UV_EXECUTABLE}" venv
--python "${Python_EXECUTABLE}"
--no-python-downloads
--allow-existing
"${_glad_python_venv}"
COMMAND_ERROR_IS_FATAL ANY
)
if(NOT _pip_available EQUAL 0)
message(STATUS "glad: pip not found in ${Python_EXECUTABLE}, bootstrapping via ensurepip...")
execute_process(
COMMAND "${Python_EXECUTABLE}" -m ensurepip --upgrade
RESULT_VARIABLE _ensurepip_result
OUTPUT_QUIET ERROR_QUIET
)
if(NOT _ensurepip_result EQUAL 0)
message(FATAL_ERROR
"glad: pip is not available in ${Python_EXECUTABLE} and ensurepip failed to "
"bootstrap it.\nPlease install pip for your Python interpreter "
"(e.g. 'pkg install py311-pip' on FreeBSD, or the python3-pip package for "
"your distro) and re-run cmake.")
endif()
if(WIN32)
set(_glad_python_executable "${_glad_python_venv}/Scripts/python.exe")
else()
set(_glad_python_executable "${_glad_python_venv}/bin/python")
endif()
execute_process(
COMMAND "${Python_EXECUTABLE}" -m pip install
--upgrade
COMMAND "${UV_EXECUTABLE}" pip install
--python "${_glad_python_executable}"
--requirement "${CMAKE_SOURCE_DIR}/third-party/glad/requirements.txt"
"setuptools<81"
--quiet
COMMAND_ERROR_IS_FATAL ANY
)
set(Python_EXECUTABLE "${_glad_python_executable}" # cmake-lint: disable=C0103
CACHE FILEPATH "Python interpreter" FORCE)
set(PYTHON_EXECUTABLE "${Python_EXECUTABLE}" CACHE FILEPATH "Python interpreter for glad" FORCE)
else()
message(STATUS "glad: jinja2 and setuptools already available in ${Python_EXECUTABLE}, skipping pip install")
message(STATUS
"glad: jinja2 and setuptools already available in "
"${Python_EXECUTABLE}, skipping Python dependency install")
endif()
endif()