Add pixi [pyconde sprints]

.github/workflows/tests.yml

@@ -78,3 +78,20 @@ jobs:
           #       and is recommending this work-around for the time being, see
           #       https://status.coveralls.io/incidents/pdbt7vdzlvpj
           fail-on-error: false
+
+  check-environment:
+    name: Check dependencies in sync
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v6
+      - uses: prefix-dev/setup-pixi@v0.9.5
+        with:
+          run-install: false
+      - name: Check pyproject.toml and environment.yml are in sync
+        run: |
+          pixi workspace export conda-environment --name conda-smithy | sed '/^$/d' > environment.yml
+          if ! git diff --exit-code environment.yml; then
+            echo "error: pyproject.toml [tool.pixi] and environment.yml are out of sync"
+            echo "Run: pixi workspace export conda-environment --name conda-smithy | sed '/^\$/d' > environment.yml"
+            exit 1
+          fi

.gitignore

@@ -23,7 +23,11 @@ nppBackup/
 .mypy_cache/
 
 conda_smithy/_version.py
+
+# pixi environments
 .pixi/*
+!.pixi/config.toml
+pixi.lock
 
 venv
 oryx-build-commands.txt

README.md

@@ -111,10 +111,22 @@ When everything is configured you can trigger a build with a push to the feedsto
 Developing conda-smithy
 -----------------------
 
-To develop conda smithy, use your favortite conda-based environment manager and create an environment based on the `environment.yml`.
+To develop conda-smithy, create an environment with all dependencies and install conda-smithy in editable mode.
+
+### Using pixi
+
+```
+pixi install
+pixi run pytest
+```
+
+### Using conda
 
 ```
-$ conda env create
+conda env create
+conda activate conda-smithy
+pip install --no-build-isolation -e .
+pytest tests
 ```
 
 Releasing conda-smithy

environment.yml

@@ -1,46 +1,40 @@
 name: conda-smithy
 channels:
-  - conda-forge
-  - nodefaults
+- conda-forge
+- nodefaults
 dependencies:
-  - python>=3.6
-  # Development dependencies
-  - pip
-  - python-build
-  - setuptools>=45
-  - setuptools_scm>=8.1
-  - tomli>=1.0.0
-  - pre-commit
-  - mock
-  - pytest
-  - pytest-cov
-  # # Part of some optional lint tests
-  - conda-recipe-manager >=0.9
-  - conda-souschef
-  # Runtime dependencies
-  - conda >=4.2
-  - conda-build >=25.3.1
-  - conda-package-handling >=1.9.0
-  - jinja2
-  - requests
-  - pycryptodome
-  - referencing
-  - pygit2
-  - pygithub >=2,<3
-  - ruamel.yaml
-  - conda-forge-pinning
-  - vsts-python-api
-  - toolz
-  - shellcheck
-  - scrypt
-  - license-expression
-  - libarchive
-  - cirun >=0.30
-  - pydantic >=2.11,<3
-  - pixi >=0.59.0
-  - jsonschema
-  - backports.strenum
-  - exceptiongroup
-  # py-rattler's API subject to change, pin to minor
-  - py-rattler >=0.22,<0.23
-  - rattler-build-conda-compat >=1.4.5,<2.0.0a0
+- pre-commit *
+- mock *
+- pytest *
+- pytest-cov *
+- conda-recipe-manager >=0.9
+- conda-souschef *
+- conda >=4.2
+- conda-build >=25.3.1
+- conda-package-handling >=1.9.0
+- jinja2 *
+- requests *
+- pycryptodome *
+- referencing *
+- pygit2 *
+- pygithub >=2,<3
+- ruamel.yaml *
+- conda-forge-pinning *
+- vsts-python-api *
+- toolz *
+- shellcheck *
+- scrypt *
+- license-expression *
+- libarchive *
+- cirun >=0.30
+- pydantic >=2.11,<3
+- pixi >=0.59.0
+- jsonschema *
+- backports.strenum *
+- exceptiongroup *
+- py-rattler >=0.22,<0.23
+- rattler-build-conda-compat >=1.4.5,<2.0.0a0
+- python >=3.9
+- pip
+- pip:
+  - -e .

news/pixi-dev-support.rst

@@ -0,0 +1,24 @@
+**Added:**
+
+* Add Pixi dev support in `pyproject.toml`, keeping `conda` support as-is.
+  This is for devs working on `conda-smithy`.
+
+**Changed:**
+
+* <news item>
+
+**Deprecated:**
+
+* <news item>
+
+**Removed:**
+
+* <news item>
+
+**Fixed:**
+
+* <news item>
+
+**Security:**
+
+* <news item>

pyproject.toml

@@ -78,3 +78,53 @@ markers = [
     "legacy_appveyor: Test designed to run as if prior to the azure migration",
     "cli: CLI tests outside of test/test_cli.py",
 ]
+
+[tool.pixi.workspace]
+channels = ["conda-forge"]
+name = "conda-smithy"
+platforms = ["linux-64", "linux-aarch64", "osx-arm64", "win-64"]
+
+[tool.pixi.pypi-dependencies]
+conda-smithy = { path = ".", editable = true }
+
+# Runtime dependencies
+[tool.pixi.dependencies]
+conda = ">=4.2"
+conda-build = ">=25.3.1"
+conda-package-handling = ">=1.9.0"
+jinja2 = "*"
+requests = "*"
+pycryptodome = "*"
+referencing = "*"
+pygit2 = "*"
+pygithub = ">=2,<3"
+"ruamel.yaml" = "*"
+conda-forge-pinning = "*"
+vsts-python-api = "*"
+toolz = "*"
+shellcheck = "*"
+scrypt = "*"
+license-expression = "*"
+libarchive = "*"
+cirun = ">=0.30"
+pydantic = ">=2.11,<3"
+pixi = ">=0.59.0"
+jsonschema = "*"
+"backports.strenum" = "*"
+exceptiongroup = "*"
+# py-rattler's API subject to change, pin to minor
+py-rattler = ">=0.22,<0.23"
+rattler-build-conda-compat = ">=1.4.5,<2.0.0a0"
+
+# Development and testing dependencies
+[tool.pixi.feature.dev.dependencies]
+pre-commit = "*"
+mock = "*"
+pytest = "*"
+pytest-cov = "*"
+# Part of some optional lint tests
+conda-recipe-manager = ">=0.9"
+conda-souschef = "*"
+
+[tool.pixi.environments]
+default = { features = ["dev"], solve-group = "default" }