ci: Update CI to use Pixi

.gitignore

@@ -32,3 +32,8 @@ param/_version.py
 # asv benchmark
 benchmarks/.asv
 benchmarks/param
+
+
+# pixi
+.pixi
+pixi.lock

pixi.toml

@@ -0,0 +1,157 @@
+[project]
+name = "param"
+channels = ["conda-forge"]
+platforms = ["linux-64", "osx-arm64", "osx-64", "win-64"]
+
+[tasks]
+install = 'python -m pip install --no-deps --disable-pip-version-check -e .'
+
+[activation.env]
+PYTHONIOENCODING = "utf-8"
+
+[environments]
+test-38 = ["py38", "test-core", "test", "example", "test-example"]
+test-39 = ["py39", "test-core", "test", "example", "test-example"]
+test-310 = ["py310", "test-core", "test", "example", "test-example"]
+test-311 = ["py311", "test-core", "test", "example", "test-example"]
+test-312 = ["py312", "test-core", "test", "example", "test-example"]
+test-313 = ["py313", "test-core", "test-313", "example", "test-example"]
+test-pypy = ["pypy", "test-core", "test-pypy"]
+docs = ["py311", "example", "doc"]
+build = ["py311", "build"]
+lint = ["py311", "lint"]
+
+[dependencies]
+nomkl = "*"
+pip = "*"
+
+[feature.py38.dependencies]
+python = "3.8.*"
+
+[feature.py39.dependencies]
+python = "3.9.*"
+
+[feature.py310.dependencies]
+python = "3.10.*"
+
+[feature.py311.dependencies]
+python = "3.11.*"
+
+[feature.py312.dependencies]
+python = "3.12.*"
+
+[feature.py313.dependencies]
+python = "3.13.*"
+
+[feature.pypy]
+platforms = ["linux-64", "osx-64", "win-64"] # not supported for osx-arm64
+
+[feature.pypy.dependencies]
+pypy = "7.3.*"
+
+[feature.example.dependencies]
+aiohttp = "*"
+pandas = "*"
+panel = "*"
+
+# =============================================
+# =================== TESTS ===================
+# =============================================
+[feature.test-core.dependencies]
+pytest = "*"
+pytest-asyncio = "*"
+pytest-cov = "*"
+pytest-github-actions-annotate-failures = "*"
+pytest-rerunfailures = "*"
+
+[feature.test-core.tasks]
+test-unit = 'pytest tests'
+
+[feature.test.dependencies]
+cloudpickle = "*"
+ipython = "*"
+jsonschema = "*"
+nest-asyncio = "*"
+numpy = "*"
+odfpy = "*"
+openpyxl = "*"
+pandas = "*"
+pyarrow = "*"
+pytables = "*"
+xlrd = "*"
+
+[feature.test.target.linux.dependencies]
+gmpy2 = "*"
+
+[feature.test-313.dependencies]
+cloudpickle = "*"
+ipython = "*"
+jsonschema = "*"
+nest-asyncio = "*"
+numpy = "*"
+odfpy = "*"
+openpyxl = "*"
+pandas = "*"
+# pyarrow = "*"
+pytables = "*"
+xlrd = "*"
+
+[feature.test-313.target.linux.dependencies]
+gmpy2 = "*"
+
+[feature.test-pypy.dependencies]
+cloudpickle = "*"
+ipython = "*"
+jsonschema = "*"
+nest-asyncio = "*"
+numpy = "*"
+odfpy = "*"
+openpyxl = "*"
+pandas = "*"
+xlrd = "*"
+
+[feature.test-example.tasks]
+test-example = 'pytest -n logical --dist loadscope --nbval-lax examples'
+
+[feature.test-example.dependencies]
+psutil = "*"
+pytest-xdist = "*"
+nbval = "*"
+
+# =============================================
+# =================== DOCS ====================
+# =============================================
+[feature.doc]
+channels = ["pyviz"]
+
+[feature.doc.dependencies]
+nbsite = ">=0.8.4,<0.9.0"
+sphinx-remove-toctrees = "*"
+
+[feature.doc.activation.env]
+MOZ_HEADLESS = "1"
+MPLBACKEND = "Agg"
+
+[feature.doc.tasks.docs-build]
+cmd = "sphinx-build -b html doc builtdocs"
+
+# =============================================
+# ================== BUILD ====================
+# =============================================
+[feature.build.dependencies]
+python-build = "*"
+conda-build = "*"
+
+[feature.build.tasks]
+build-conda = 'bash scripts/conda/build.sh'
+build-pip = 'python -m build .'
+
+# =============================================
+# =================== LINT ====================
+# =============================================
+[feature.lint.dependencies]
+pre-commit = "*"
+
+[feature.lint.tasks]
+lint = 'pre-commit run --all-files'
+lint-install = 'pre-commit install'