feat(dfns): specify and reimplement v2 dfn schema

.github/workflows/ci.yml

@@ -51,10 +51,10 @@ jobs:
     steps:
 
       - name: Checkout repo
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: Setup uv
-        uses: astral-sh/setup-uv@v5
+        uses: astral-sh/setup-uv@v7
         with:
           cache-dependency-glob: "**/pyproject.toml"
 
@@ -80,9 +80,10 @@ jobs:
       fail-fast: false
       matrix:
         os: [ ubuntu-22.04, macos-14, windows-2022 ]
-        python: [ "3.10", "3.11", "3.12", "3.13" ]
+        python: [ "3.11", "3.12", "3.13", "3.14" ]
     env:
       GCC_V: 11
+      UV_PROJECT_ENVIRONMENT: ${{ github.workspace }}/.venv
     steps:
 
       - name: Checkout repo
@@ -97,10 +98,11 @@ jobs:
           path: modflow6
 
       - name: Setup uv
-        uses: astral-sh/setup-uv@v5
+        uses: astral-sh/setup-uv@v7
         with:
           cache-dependency-glob: "**/pyproject.toml"
           python-version: ${{ matrix.python }}
+          working-directory: modflow-devtools
 
       - name: Setup Fortran
         if: runner.os != 'Windows'
@@ -124,16 +126,16 @@ jobs:
         working-directory: modflow-devtools/autotest
         env:
           REPOS_PATH: ${{ github.workspace }}
+          DFNS_PATH: ${{ github.workspace }}/modflow6/doc/mf6io/mf6ivar/dfn
           MODFLOW_DEVTOOLS_AUTO_SYNC: 0
-          TEST_DFN_PATH: ${{ github.workspace }}/modflow6/doc/mf6io/mf6ivar/dfn
         # use --dist loadfile to so tests requiring pytest-virtualenv run on the same worker
-        run: uv run pytest -v -n auto --dist loadfile --durations 0 --ignore test_download.py --ignore test_models.py --ignore test_dfns_registry.py
+        run: uv run pytest -v -n auto --dist loadfile --durations 0 --ignore test_download.py --ignore test_models.py --ignore dfns/test_dfns_registry.py
 
       - name: Run network-dependent tests
         # only invoke the GH API on one OS and Python version
         # to avoid rate limits (1000 rqs / hour / repository)
         # https://docs.github.com/en/actions/learn-github-actions/usage-limits-billing-and-administration#usage-limits
-        if: runner.os == 'Linux' && matrix.python == '3.10'
+        if: runner.os == 'Linux' && matrix.python == '3.11'
         working-directory: modflow-devtools/autotest
         env:
           REPOS_PATH: ${{ github.workspace }}
@@ -151,7 +153,7 @@ jobs:
           TEST_PROGRAMS_REPO: MODFLOW-ORG/modflow6
           TEST_PROGRAMS_REF: develop
           TEST_PROGRAMS_SOURCE: modflow6
-        run: uv run pytest -v -n auto --dist loadgroup --durations 0 test_download.py test_models.py test_dfns_registry.py
+        run: uv run pytest -v -n auto --dist loadgroup --durations 0 test_download.py test_models.py dfns/test_dfns_registry.py
 
   rtd:
     name: Docs

DEVELOPER.md

@@ -19,7 +19,7 @@ This document provides guidance to set up a development environment and discusse
 
 ## Requirements
 
-Python3.10+ is currently required. This project has historically aimed to support several recent versions of Python, loosely following [NEP 29](https://numpy.org/neps/nep-0029-deprecation_policy.html#implementation). In current and future development this window may narrow to follow [SPEC 0](https://scientific-python.org/specs/spec-0000/#support-window) instead.
+Python3.11+. This project has historically aimed to support several recent versions of Python, loosely following [NEP 29](https://numpy.org/neps/nep-0029-deprecation_policy.html#implementation). In current and future development this window may narrow to follow [SPEC 0](https://scientific-python.org/specs/spec-0000/#support-window) instead.
 
 ## Installation
 

README.md

@@ -41,7 +41,7 @@ Python development tools for MODFLOW 6 and related projects.
 
 ## Requirements
 
-Python3.10+, dependency-free by default.
+Python3.11+, dependency-free by default.
 
 Two main dependency groups are available, oriented around specific use cases:
 

autotest/dfn/conftest.py

@@ -0,0 +1,16 @@
+import pytest
+
+from modflow_devtools.dfn import fetch_dfns
+
+MF6_OWNER = "MODFLOW-ORG"
+MF6_REPO = "modflow6"
+MF6_REF = "develop"
+
+
+@pytest.fixture(scope="module")
+def dfn_dir(module_tmpdir):
+    pytest.importorskip("boltons")
+    path = module_tmpdir / "dfn"
+    path.mkdir()
+    fetch_dfns(MF6_OWNER, MF6_REPO, MF6_REF, path, verbose=True)
+    return path

autotest/dfn/test_dfn.py

@@ -0,0 +1,23 @@
+from modflow_devtools.dfn import Dfn
+from modflow_devtools.markers import requires_pkg
+
+
+@requires_pkg("boltons")
+def test_load_v1(dfn_dir):
+    common = {}
+    common_path = dfn_dir / "common.dfn"
+    if common_path.exists():
+        with common_path.open() as f:
+            common, _ = Dfn._load_v1_flat(f)
+    names = [p.stem for p in dfn_dir.glob("*.dfn") if p.stem not in ("common", "flopy")]
+    assert names
+    for name in names:
+        with (dfn_dir / f"{name}.dfn").open() as f:
+            dfn = Dfn.load(f, name=name, common=common)
+        assert any(dfn)
+
+
+@requires_pkg("boltons")
+def test_load_all(dfn_dir):
+    dfns = Dfn.load_all(dfn_dir)
+    assert any(dfns)

autotest/dfns/conftest.py

@@ -0,0 +1,34 @@
+import os
+from pathlib import Path
+
+import pytest
+
+from modflow_devtools.dfns import fetch_dfns
+
+PROJ_ROOT = Path(__file__).parents[1]
+
+DFNS_REPO = os.getenv("TEST_DFNS_REPO", "MODFLOW-ORG/modflow6")
+DFNS_REF = os.getenv("TEST_DFNS_REF", "develop")
+DFNS_SOURCE = os.getenv("TEST_DFNS_SOURCE", "modflow6")
+DFNS_VERSION = os.getenv("TEST_DFNS_VERSION", "6.6.0")
+
+
+@pytest.fixture(scope="module")
+def dfn_dir(module_tmpdir):
+    """
+    Path to DFN files: $DFNS_PATH if set, otherwise fetched from develop branch
+    to a temp dir (for LocalDfnRegistry tests).
+    """
+    env_var = "DFNS_PATH"
+    if dfns_path := os.getenv(env_var):
+        dfn_path = Path(dfns_path).expanduser().resolve()
+        assert dfn_path.exists(), f"{env_var}={dfns_path} does not exist"
+        assert any(dfn_path.glob("*.dfn")), f"{env_var}={dfns_path} empty"
+        return dfn_path
+
+    dfns_path = module_tmpdir / "dfns"
+    dfns_path.mkdir()
+    owner = DFNS_REPO.split("/")[0]
+    repo = DFNS_REPO.split("/")[1]
+    fetch_dfns(owner, repo, DFNS_REF, dfns_path, verbose=True)
+    return dfns_path

autotest/dfns/test_dfns.py

@@ -0,0 +1,56 @@
+from modflow_devtools.dfns import Dfns
+from modflow_devtools.markers import requires_pkg
+
+
+def test_load(dfn_dir):
+    spec = Dfns.load(dfn_dir)
+    assert spec.schema_version == "2"
+    assert spec.root is not None
+    assert spec.root.name == "sim-nam"
+    assert len(spec.components) > 100
+    assert "sim-nam" in spec.components
+    assert "gwf-nam" in spec.components
+    assert "gwf-chd" in spec.components
+    assert "gwf-wel" in spec.components.keys()
+    assert "garbage" not in spec.components
+
+    gwf_chd = spec.components["gwf-chd"]
+    assert gwf_chd.name == "gwf-chd"
+    assert gwf_chd.parent == "gwf-nam"
+
+    sim_children = spec.children("sim-nam")
+    assert "gwf-nam" in sim_children
+
+    gwf_children = spec.children("gwf-nam")
+    assert "gwf-chd" in gwf_children
+
+
+def test_load_empty_directory(function_tmpdir):
+    spec = Dfns.load(function_tmpdir)
+    assert len(spec.components) == 0
+
+
+# =============================================================================
+# CLI
+# =============================================================================
+
+
+@requires_pkg("pydantic")
+class TestCLI:
+    def test_main_help(self):
+        from modflow_devtools.dfns.__main__ import main
+
+        result = main([])
+        assert result == 0
+
+    def test_info_command(self):
+        from modflow_devtools.dfns.__main__ import main
+
+        result = main(["info"])
+        assert result == 0
+
+    def test_clean_command(self):
+        from modflow_devtools.dfns.__main__ import main
+
+        result = main(["clean"])
+        assert result == 0