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DEV: add pixi.toml
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‎.github/workflows/pixi_tests.yml‎

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---
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name: Pixi
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on:
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pull_request:
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paths:
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- "pixi.lock"
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- "pyproject.toml"
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- "src/**"
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- "lib/**"
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- ".github/workflows/pixi.yml"
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push:
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branches: [main]
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paths:
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- "pixi.lock"
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- "pyproject.toml"
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- "src/**"
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- "lib/**"
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- ".github/workflows/pixi.yml"
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workflow_dispatch:
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permissions: {}
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jobs:
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pixi-linux-install:
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runs-on: ubuntu-24.04
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permissions:
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contents: read
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steps:
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- uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
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with:
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fetch-depth: 0
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persist-credentials: false
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- name: Set up pixi and install environment
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uses: prefix-dev/[email protected]
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with:
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pixi-version: v0.66.0
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locked: true
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cache: true
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cache-write: ${{ github.event_name == 'push' && github.ref_name == 'main' }}
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- name: Show pixi info
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run: |
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pixi info
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pixi list
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- name: Clean build artifacts
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run: |
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rm -rf build meson-logs meson-private .mesonpy-*
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- name: Install Matplotlib editable
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run: pixi run python -m pip install --config-settings=setup-args="-Db_lto=false" --editable .
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- name: Smoke test editable install
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run: |
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pixi run python -c "import matplotlib; print(matplotlib.__version__)"

‎.gitignore‎

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env.bak/
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venv.bak/
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# pixi files on top level
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pixi.toml
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.pixi/
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# ignore the lock file, but we want to commit this if lock is purposely made from
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# pyproject.toml. If you want the lock file committed, just do `git add -f pixi.lock`
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# after generating it.
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pixi.lock
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# Jupyter files #
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#################
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‎doc/devel/development_setup.rst‎

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Remember to activate the environment whenever you start working on Matplotlib!
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.. tab-item:: pixi environment
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A pixi configuration is included in ``pyproject.toml``. The environment
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includes the base Matplotlib dependencies, and documentation and testing
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dependencies. To install the dependencies::
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pixi install
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and then to install an editable version on Matplotlib::
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pixi run python -m pip install \
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--no-build-isolation \
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--config-settings=setup-args="-Db_lto=false" \
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--editable .
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(the ``-Db_lto=false`` is not needed on all platforms). You can test the installation with::
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pixi run python -c "import matplotlib; print(matplotlib.__file__)"
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Note there are some pixi tasks available as shortcuts::
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pixi task list
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If you do not want to use ``pixi run`` in front of every command, you can do::
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pixi shell
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and continue to use pixi as a python environment.
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.. note:: do not edit the ``pyproject.toml`` file and commit to the repository, as this
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will affect all developers. If you want to change the dependencies, please open an
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issue or pull request to discuss the change. If you want a custom ``pixi.toml`` file,
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you can create one in your home directory, and it will be used instead of the
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repository one. An example is available in ``tools/pixi.example.toml`` that lists the
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dependencies needed to build Matplotlib.
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.. _pixi: https://pixi.prefix.dev/
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Install external dependencies
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^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

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