support pydantic 2

.github/workflows/main.yaml

@@ -21,30 +21,51 @@ on:
 
 
 jobs:
-  package:
-    name: Build package
+  conda-package:
+    name: Build Conda package
     runs-on: "ubuntu-latest"
     steps:
       - uses: actions/checkout@v3
         with:
           fetch-depth: 0
-      - uses: conda-incubator/setup-miniconda@v2
-        with:
-          miniconda-version: "latest"
-          activate-environment: build-conda-token
-          environment-file: etc/build-environment.yml
-          python-version: 3.8
-          auto-activate-base: false
+      - name: Create build environment
+        run: |
+          source $CONDA/bin/activate
+          conda env create -f etc/build-environment.yml
       - name: conda Build
-        shell: bash -l {0}
         run: |
-          VERSION=`python -m setuptools_scm` conda build conda.recipe
-          mv $CONDA_PREFIX/conda-bld .
+          source $CONDA/bin/activate && conda activate build-conda-project
+          VERSION=`hatch version` conda build -c conda-forge --output-folder conda-build conda.recipe
       - name: Upload the build artifact
         uses: actions/upload-artifact@v3
         with:
           name: package-${{ github.sha }}
-          path: conda-bld
+          path: conda-build
+
+  build-wheel:
+    name: Build the wheel
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4
+        with:
+          fetch-depth: 0
+      - name: Setup Python
+        uses: actions/setup-python@65d7f2d534ac1bc67fcd62888c5f4f3d2cb2b236 # v4
+        with:
+          python-version: "3.10"
+      - name: Install build dependencies
+        run: pip install build
+      - name: Build the package
+        run: python -m build
+      - name: Upload the build artifact
+        uses: actions/upload-artifact@a8a3f3ad30e3422c9c7b888a15615d19a852ae32 # v3
+        with:
+          name: wheel-${{ github.sha }}
+          path: dist/*.whl
+          if-no-files-found: error
+          retention-days: 7
+
   test:
     name: Test (conda ${{ matrix.conda-version }}, Python ${{ matrix.python-version }}, ${{ matrix.os }})
     runs-on: ${{ matrix.os }}
@@ -81,14 +102,6 @@ jobs:
         shell: bash
         run: |
           ./conda.exe create -p $HOME/miniconda conda=${{ matrix.conda-version }} python=${{ matrix.python-version }}
-      - name: Update with test dependencies
-        shell: bash
-        run: |
-          if [ $RUNNER_OS == 'Windows' ]; then
-            source $HOME/miniconda/Scripts/activate root && conda env update -f etc/test-environment.yml -p $HOME/miniconda && $HOME/miniconda/Scripts/pip install --no-deps .
-          else
-            source $HOME/miniconda/bin/activate root && conda env update -f etc/test-environment.yml -p $HOME/miniconda && $HOME/miniconda/bin/pip install --no-deps .
-          fi
       - name: Install Libmamba
         shell: bash
         run: |
@@ -101,6 +114,14 @@ jobs:
               conda install conda-libmamba-solver -p $HOME/miniconda
             fi
           fi
+      - name: Update with test dependencies
+        shell: bash
+        run: |
+          if [ $RUNNER_OS == 'Windows' ]; then
+            source $HOME/miniconda/Scripts/activate root && conda env update -f etc/test-environment.yml -p $HOME/miniconda && $HOME/miniconda/Scripts/pip install --no-deps .
+          else
+            source $HOME/miniconda/bin/activate root && conda env update -f etc/test-environment.yml -p $HOME/miniconda && $HOME/miniconda/bin/pip install --no-deps .
+          fi
       - name: py.test
         shell: bash
         env:
@@ -154,6 +175,30 @@ jobs:
       uses: glassechidna/artifact-cleaner@master
       with:
         minimumAge: 86400
+
+  publish-to-pypi:
+    name: Build & publish to PyPI
+    if: github.event_name == 'push' && github.event_name == 'release' && github.event.action == 'created'
+    runs-on: ubuntu-latest
+    needs: [check]
+    steps:
+    - name: Checkout
+      uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4
+    - name: Setup Python
+      uses: actions/setup-python@65d7f2d534ac1bc67fcd62888c5f4f3d2cb2b236 # v4
+    - name: Download the build artifacts
+      uses: actions/download-artifact@9bc31d5ccc31df68ecc42ccf4149144866c47d8a # v3
+      with:
+        name: wheel-${{ github.sha }}
+        path: ~/dist
+    - name: Install build dependencies
+      run: pip install twine
+    - name: Upload to PyPI with twine
+      run: python -m twine upload ~/dist/*
+      env:
+        TWINE_USERNAME: __token__
+        TWINE_PASSWORD: ${{ secrets.PYPI_TOKEN}}
+
   # This check job runs to ensure all tests have passed, such that we can use it as a "wildcard" for branch
   # protection to ensure all tests pass before a PR can be merged.
   check:

conda.recipe/meta.yaml

@@ -12,7 +12,7 @@ source:
   path: ..
 
 build:
-  script: {{ PYTHON }} -m pip install . -vv
+  script: SETUPTOOLS_SCM_PRETEND_VERSION={{version}} {{ PYTHON }} -m pip install . -vv
   noarch: python
   entry_points:
     {% for name, reference in project['scripts'].items() %}
@@ -23,10 +23,12 @@ requirements:
   host:
     - python {{ project['requires-python'] }}
     - pip
-    - setuptools
+    {% for dep in pyproject['build-system']['requires'] %}
+    - {{ dep.lower() }}
+    {% endfor %}
   run:
     - python {{ project['requires-python'] }}
-    - conda-lock >=1.2
+    - conda-lock >=2.2
     - lockfile
     - pexpect
     - ruamel.yaml
@@ -40,9 +42,9 @@ test:
   imports:
     - conda_project
   commands:
-    - conda-project --help
-    - conda-project --version
-    - python -c "import conda_project; ver = conda_project.__version__; assert ver != '0.0.0' and ver != 'unknown'"
+    # conda-project --help
+    # conda-project --version
+    - python -c "from conda_project import __version__; assert __version__ == \"{{ version }}\""
 
 about:
   home: {{ project['urls']['repository'] }}

environment.yml

@@ -1,5 +1,4 @@
 channels:
-  - defaults
   - conda-forge
 dependencies:
   - python=3.8
@@ -10,9 +9,16 @@ dependencies:
   - pytest-cov
   - pytest-mock
   - pre-commit
-  - conda-lock>=1.2
+  - conda-lock>=2.2
   - pydantic
   - ruamel.yaml
-  - setuptools-scm
+  - setuptools-scm>=6.2
+  - shellingham
+  - python-dotenv
+  - lockfile
+  - pexpect
   - fsspec
   - python-libarchive-c
+  - pip
+  - pip:
+    - -e .

etc/build-environment.yml

@@ -1,6 +1,12 @@
 name: build-conda-project
+channels:
+  - defaults
+  - conda-forge
 dependencies:
   - conda
   - conda-build
   - conda-verify
+  - hatch
+  - hatchling
+  - hatch-vcs
   - setuptools-scm

etc/test-environment.yml

@@ -1,9 +1,8 @@
 name: test-conda-project
 channels:
-  - defaults
   - conda-forge
 dependencies:
-  - conda-lock>=2.1.1
+  - conda-lock>=2.2
   - pexpect
   - lockfile
   - ruamel.yaml

pyproject.toml

@@ -1,6 +1,6 @@
 [build-system]
-requires = ["setuptools>=42", "wheel", "setuptools-scm[toml]>=6.2"]
-build-backend = "setuptools.build_meta"
+build-backend = "hatchling.build"
+requires = ["hatchling", "hatch-vcs>=0.3", "setuptools-scm>=7.1"]
 
 [project]
 name = "conda-project"
@@ -31,7 +31,7 @@ classifiers = [
     "Topic :: Utilities",
 ]
 dependencies = [
-    "conda-lock >=1.2",
+    "conda-lock >=2.2",
     "lockfile",
     "pexpect",
     "ruamel.yaml",
@@ -42,9 +42,20 @@ dependencies = [
     "libarchive-c"
 ]
 
-[tool.setuptools_scm]
+[tool.hatch.version]
+source = "vcs"
+
+[tool.hatch.build.hooks.vcs]
+version-file = "src/conda_project/_version.py"
+
+[tool.hatch.version.raw-options]
 version_scheme = "post-release"
-write_to = "src/conda_project/_version.py"
+
+[tool.hatch.build.targets.sdist]
+include = [
+  "/src/conda_project",
+  "/pyproject.toml"
+]
 
 [project.optional-dependencies]
 docs = [

src/conda_project/project.py

@@ -30,7 +30,13 @@
     render_lockfile_for_platform,
 )
 from fsspec.core import split_protocol
-from pydantic import BaseModel, create_model
+
+try:
+    # Version 2 provides a v1 API
+    from pydantic.v1 import BaseModel, create_model
+except ImportError:
+    from pydantic import BaseModel  # type: ignore
+    from pydantic import create_model  # type: ignore
 
 from .conda import (
     CONDA_EXE,

src/conda_project/project_file.py

@@ -9,9 +9,16 @@
 
 from conda_lock._vendor.conda.models.match_spec import MatchSpec
 from pkg_resources import Requirement
-from pydantic import BaseModel, ValidationError, validator
 from ruamel.yaml import YAML
 
+try:
+    # Version 2 provides a v1 API
+    from pydantic.v1 import BaseModel, ValidationError, validator
+except ImportError:
+    from pydantic import BaseModel  # type: ignore
+    from pydantic import ValidationError  # type: ignore
+    from pydantic import validator  # type: ignore
+
 from .exceptions import CondaProjectError
 
 PROJECT_YAML_FILENAMES = ("conda-project.yml", "conda-project.yaml")

tests/test_project_file.py

@@ -7,7 +7,12 @@
 from typing import Dict, List, Optional, Union
 
 import pytest
-from pydantic import ValidationError
+
+try:
+    # Version 2 provides a v1 API
+    from pydantic.v1 import ValidationError
+except ImportError:
+    from pydantic import ValidationError  # type: ignore
 
 from conda_project.exceptions import CondaProjectError
 from conda_project.project_file import (