chore: add pixi for cuda-core and cuda-bindings

Author: cpcloud

.gitattributes

@@ -7,3 +7,5 @@ cuda/_version.py export-subst
 *.hpp binary
 # git should not convert line endings in PNG files
 *.png binary
+# SCM syntax highlighting & preventing 3-way merges
+pixi.lock merge=binary linguist-language=YAML linguist-generated=true

.gitignore

@@ -182,3 +182,6 @@ cython_debug/
 
 # Dont ignore
 !.github/actions/build/
+# pixi environments
+.pixi/*
+!.pixi/config.toml

.pre-commit-config.yaml

@@ -29,6 +29,7 @@ repos:
         language: python
         additional_dependencies:
           - https://files.pythonhosted.org/packages/cc/20/ff623b09d963f88bfde16306a54e12ee5ea43e9b597108672ff3a408aad6/pathspec-0.12.1-py3-none-any.whl
+        exclude: '.*pixi\.lock'
 
       - id: no-markdown-in-docs-source
         name: Prevent markdown files in docs/source directories

cuda_bindings/pixi.lock

@@ -0,0 +1,94 @@
+# SPDX-FileCopyrightText: Copyright (c) 2024-2025 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
+#
+# SPDX-License-Identifier: Apache-2.0
+
+[workspace]
+channels = ["conda-forge"]
+platforms = ["linux-64", "linux-aarch64", "win-64"]
+preview = ["pixi-build"]
+
+[workspace.build-variants]
+python = ["3.10.*", "3.11.*", "3.12.*", "3.13.*", "3.14.*"]
+
+[dependencies]
+cuda-bindings = { path = "." }
+libnvjitlink = "*"
+
+[feature.test.dependencies]
+pytest = ">=6.2.4"
+pytest-benchmark = ">=3.4.1"
+pyglet = ">=2.1.9"
+
+[feature.cu13.system-requirements]
+cuda = "13"
+
+[feature.cu13.dependencies]
+cuda-version = "13.*"
+
+[feature.cu12.system-requirements]
+cuda = "12"
+
+[feature.cu12.dependencies]
+cuda-version = "12.*"
+
+[environments]
+cu13 = { features = ["cu13", "test"], solve-group = "cu13" }
+cu12 = { features = ["cu12", "test"], solve-group = "cu12" }
+
+[target.linux-64.activation.env]
+CUDA_HOME = "$CONDA_PREFIX/targets/x86_64-linux"
+
+[target.linux-aarch64.activation.env]
+CUDA_HOME = "$CONDA_PREFIX/targets/aarch64-linux"
+
+[target.win.activation.env]
+CUDA_HOME = '%CONDA_PREFIX%\Library'
+
+[package]
+name = "cuda-bindings"
+version = "13.0.2"
+
+[package.build]
+backend = { name = "pixi-build-python", version = "*" }
+config.noarch = false
+
+[package.build-dependencies]
+cuda-nvrtc-dev = "*"
+cuda-profiler-api = "*"
+cuda-nvvm = "*"
+ccache = "*"
+
+[package.host-dependencies]
+python = "*"
+setuptools = ">=77"
+cython = ">=3.1,<3.2"
+pyclibrary = ">=0.1.7"
+
+[package.run-dependencies]
+python = "*"
+cuda-pathfinder = ">=1.1,<1.2"
+
+[package.target.linux.build-dependencies]
+libcufile-dev = "*"
+
+[package.target.linux-64.build-dependencies]
+cuda-crt-dev_linux-64 = "*"
+
+[package.target.linux-aarch64.build-dependencies]
+cuda-crt-dev_linux-aarch64 = "*"
+
+[package.target.win-64.build-dependencies]
+cuda-crt-dev_win-64 = "*"
+
+[package.build.target.linux-64.config.env]
+CXX = "ccache c++"
+CC = "ccache cc"
+CUDA_HOME = "$BUILD_PREFIX/targets/x86_64-linux"
+
+[package.build.target.linux-aarch64.config.env]
+CXX = "ccache c++"
+CC = "ccache cc"
+CUDA_HOME = "$BUILD_PREFIX/targets/sbsa-linux"
+
+[package.build.target.win-64.config.env]
+CUDA_HOME = '%BUILD_PREFIX%\Library'

cuda_bindings/pixi.toml

@@ -0,0 +1,83 @@
+# SPDX-FileCopyrightText: Copyright (c) 2024-2025 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
+#
+# SPDX-License-Identifier: Apache-2.0
+
+[workspace]
+channels = ["conda-forge"]
+platforms = ["linux-64", "linux-aarch64", "win-64"]
+preview = ["pixi-build"]
+
+[workspace.build-variants]
+python = ["3.10.*", "3.11.*", "3.12.*", "3.13.*", "3.14.*"]
+
+[dependencies]
+cuda-core = { path = "." }
+libnvjitlink = "*"
+
+[feature.test.dependencies]
+pytest = "*"
+
+[feature.cu13.system-requirements]
+cuda = "13"
+
+[feature.cu13.dependencies]
+cuda-version = "13.*"
+
+[feature.cu12.system-requirements]
+cuda = "12"
+
+[feature.cu12.dependencies]
+cuda-version = "12.*"
+
+[environments]
+cu13 = { features = ["cu13", "test"], solve-group = "cu13" }
+cu12 = { features = ["cu12", "test"], solve-group = "cu12" }
+
+[target.linux-64.activation.env]
+CUDA_HOME = "$CONDA_PREFIX/targets/x86_64-linux"
+
+[target.linux-aarch64.activation.env]
+CUDA_HOME = "$CONDA_PREFIX/targets/sbsa-linux"
+
+[target.win.activation.env]
+CUDA_HOME = '%CONDA_PREFIX%\Library'
+
+[package]
+name = "cuda-core"
+version = "0.4.1"
+
+[package.build]
+backend = { name = "pixi-build-python", version = "*" }
+# config.compilers = ["cxx"]
+config.noarch = false
+
+[package.build-dependencies]
+setuptools = ">=77"
+cython = ">=3.1"
+cuda-profiler-api = "*" # for some reason, without this, cuda.h isn't found ¯\_(ツ)_/¯
+ccache = "*"
+gxx = "*"
+gcc = "*"
+
+[package.host-dependencies]
+python = "*"
+setuptools = ">=77"
+cython = ">=3.1"
+cuda-bindings = "*"
+
+[package.run-dependencies]
+python = "*"
+numpy = "*"
+cuda-bindings = "*"
+
+[package.build.target.linux-64.config.env]
+CUDA_HOME = "$BUILD_PREFIX/targets/x86_64-linux"
+SCCACHE_PATH = "$(which sscache)"
+CXX = "ccache c++"
+CC = "ccache cc"
+
+[package.build.target.linux-aarch64.config.env]
+CUDA_HOME = "$BUILD_PREFIX/targets/sbsa-linux"
+
+[package.build.target.win-64.config.env]
+CUDA_HOME = '%BUILD_PREFIX%\Library'