feat: initialize rattler-build python bindings (#1221)

.github/workflows/python-bindings.yml

@@ -0,0 +1,50 @@
+name: Python bindings CI
+
+on:
+  push:
+    branches: [ main ]
+  pull_request:
+    paths:
+      # When we change pyproject.toml, we want to ensure that the maturin builds still work
+      - test-data/**
+      - crates/**
+      - Cargo.*
+
+      # When something in the bindings themselves changes
+      - 'py-rattler-build/**/*'
+
+      # Or when this workflow changes
+      - '.github/workflows/python-bindings.yml'
+  workflow_dispatch:
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
+permissions:
+  contents: read
+
+jobs:
+  format_lint_test:
+    name: Format, Lint and Test the Python bindings
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          submodules: recursive
+      - uses: prefix-dev/[email protected]
+        with:
+          pixi-version: v0.37.0
+          manifest-path: py-rattler-build/pixi.toml
+      - uses: actions-rust-lang/setup-rust-toolchain@v1
+        with:
+          components: clippy, rustfmt
+      - name: Format and Lint
+        run: |
+          cd py-rattler-build
+          pixi run -e test lint
+          pixi run -e test fmt-check
+      - name: Run tests
+        run: |
+          cd py-rattler-build
+          pixi run -e test test --color=yes

py-rattler-build/.gitignore

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+/target
+!Cargo.lock
+!pixi.lock
+
+# Byte-compiled / optimized / DLL files
+__pycache__/
+.pytest_cache/
+*.py[cod]
+
+# C extensions
+*.so
+
+# Distribution / packaging
+.Python
+.venv/
+env/
+bin/
+build/
+develop-eggs/
+dist/
+eggs/
+lib/
+lib64/
+parts/
+sdist/
+var/
+include/
+man/
+venv/
+*.egg-info/
+.installed.cfg
+*.egg
+
+# Installer logs
+pip-log.txt
+pip-delete-this-directory.txt
+pip-selfcheck.json
+
+# Unit test / coverage reports
+htmlcov/
+.tox/
+.coverage
+.cache
+nosetests.xml
+coverage.xml
+
+# Translations
+*.mo
+
+# Mr Developer
+.mr.developer.cfg
+.project
+.pydevproject
+
+# Rope
+.ropeproject
+
+# Django stuff:
+*.log
+*.pot
+
+.DS_Store
+
+# Sphinx documentation
+docs/_build/
+
+# MkDocs build
+site/
+
+# PyCharm
+.idea/
+
+# VSCode
+.vscode/
+
+# Pyenv
+.python-version
+.ruff_cache