Merge pull request #337 from mgxd/ci/actions

MAINT: Raise minimum to 3.10, bump actions

Author: mgxd

.github/workflows/pytest.yml

@@ -24,14 +24,14 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: ['3.9', '3.10', '3.11']
+        python-version: ['3.10', '3.11']
 
     steps:
     - name: Set up Python ${{ matrix.python-version }}
-      uses: actions/setup-python@v4
+      uses: actions/setup-python@v5
       with:
         python-version: ${{ matrix.python-version }}
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
       with:
         fetch-depth: 0
     - name: Install nibabies

.github/workflows/style.yml

@@ -20,14 +20,14 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: ['3.10']
+        python-version: ['3.11']
 
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
       with:
         fetch-depth: 1  # Only fetch the latest commit
     - name: Set up Python ${{ matrix.python-version }}
-      uses: actions/setup-python@v4
+      uses: actions/setup-python@v5
       with:
         python-version: ${{ matrix.python-version }}
     - name: Install dependencies

nibabies/_warnings.py

@@ -1,4 +1,5 @@
 """Manipulate Python warnings."""
+
 import logging
 import warnings
 

nibabies/cli/run.py

@@ -130,8 +130,6 @@ def main():
                 _copy_any(dseg_tsv, str(config.execution.nibabies_dir / "desc-aparcaseg_dseg.tsv"))
         # errno = 0
         finally:
-            from pkg_resources import resource_filename as pkgrf
-
             from ..reports.core import generate_reports
 
             # Generate reports phase

nibabies/cli/workflow.py

@@ -44,8 +44,6 @@ def build_workflow(config_file):
 
     # Called with reports only
     if config.execution.reports_only:
-        from pkg_resources import resource_filename as pkgrf
-
         build_logger.log(
             25,
             "Running --reports-only on participants %s",
@@ -132,14 +130,16 @@ def build_boilerplate(workflow):
         from shutil import copyfile
         from subprocess import CalledProcessError, TimeoutExpired, check_call
 
-        from pkg_resources import resource_filename as pkgrf
+        from nibabies.data import load as load_data
+
+        bib = load_data("boilerplate.bib")
 
         # Generate HTML file resolving citations
         cmd = [
             "pandoc",
             "-s",
             "--bibliography",
-            pkgrf("nibabies", "data/boilerplate.bib"),
+            bib,
             "--citeproc",
             "--metadata",
             'pagetitle="nibabies citation boilerplate"',
@@ -159,7 +159,7 @@ def build_boilerplate(workflow):
             "pandoc",
             "-s",
             "--bibliography",
-            pkgrf("nibabies", "data/boilerplate.bib"),
+            bib,
             "--natbib",
             str(citation_files["md"]),
             "-o",
@@ -171,4 +171,4 @@ def build_boilerplate(workflow):
         except (FileNotFoundError, CalledProcessError, TimeoutExpired):
             config.loggers.cli.warning("Could not generate CITATION.tex file:\n%s", " ".join(cmd))
         else:
-            copyfile(pkgrf("nibabies", "data/boilerplate.bib"), citation_files["bib"])
+            copyfile(bib, citation_files["bib"])

nibabies/conftest.py

@@ -1,9 +1,11 @@
 """py.test configuration"""
+
 from pathlib import Path
 from tempfile import TemporaryDirectory
 
 import pytest
-from pkg_resources import resource_filename
+
+from nibabies.data import load as load_data
 
 FILES = (
     "functional.nii",
@@ -33,5 +35,5 @@ def data_dir():
 @pytest.fixture(autouse=True)
 def set_namespace(doctest_namespace, data_dir):
     doctest_namespace["data_dir"] = data_dir
-    doctest_namespace["test_data"] = Path(resource_filename("nibabies", "tests/data"))
+    doctest_namespace["test_data"] = load_data.cached('../tests/data')
     doctest_namespace["Path"] = Path

nibabies/data/__init__.py

@@ -1,6 +1,25 @@
+"""Data file retrieval
+
+.. autofunction:: load
+
+.. automethod:: load.readable
+
+.. automethod:: load.as_path
+
+.. automethod:: load.cached
+
+.. autoclass:: Loader
+"""
+
+from __future__ import annotations
+
 import atexit
-from contextlib import ExitStack
+import os
+from contextlib import AbstractContextManager, ExitStack
+from functools import cached_property
 from pathlib import Path
+from types import ModuleType
+from typing import Union
 
 try:
     from functools import cache
@@ -10,16 +29,155 @@
 try:  # Prefer backport to leave consistency to dependency spec
     from importlib_resources import as_file, files
 except ImportError:
-    from importlib.resources import as_file, files
+    from importlib.resources import as_file, files  # type: ignore
+
+try:  # Prefer stdlib so Sphinx can link to authoritative documentation
+    from importlib.resources.abc import Traversable
+except ImportError:
+    from importlib_resources.abc import Traversable
+
+__all__ = ["load"]
+
+
+class Loader:
+    """A loader for package files relative to a module
+
+    This class wraps :mod:`importlib.resources` to provide a getter
+    function with an interpreter-lifetime scope. For typical packages
+    it simply passes through filesystem paths as :class:`~pathlib.Path`
+    objects. For zipped distributions, it will unpack the files into
+    a temporary directory that is cleaned up on interpreter exit.
+
+    This loader accepts a fully-qualified module name or a module
+    object.
+
+    Expected usage::
+
+        '''Data package
+
+        .. autofunction:: load_data
+
+        .. automethod:: load_data.readable
+
+        .. automethod:: load_data.as_path
+
+        .. automethod:: load_data.cached
+        '''
+
+        from nibabies.data import Loader
+
+        load_data = Loader(__package__)
+
+    :class:`~Loader` objects implement the :func:`callable` interface
+    and generate a docstring, and are intended to be treated and documented
+    as functions.
+
+    For greater flexibility and improved readability over the ``importlib.resources``
+    interface, explicit methods are provided to access resources.
+
+    +---------------+----------------+------------------+
+    | On-filesystem | Lifetime       | Method           |
+    +---------------+----------------+------------------+
+    | `True`        | Interpreter    | :meth:`cached`   |
+    +---------------+----------------+------------------+
+    | `True`        | `with` context | :meth:`as_path`  |
+    +---------------+----------------+------------------+
+    | `False`       | n/a            | :meth:`readable` |
+    +---------------+----------------+------------------+
+
+    It is also possible to use ``Loader`` directly::
+
+        from nibabies.data import Loader
+
+        Loader(other_package).readable('data/resource.ext').read_text()
+
+        with Loader(other_package).as_path('data') as pkgdata:
+            # Call function that requires full Path implementation
+            func(pkgdata)
+
+        # contrast to
+
+        from importlib_resources import files, as_file
+
+        files(other_package).joinpath('data/resource.ext').read_text()
+
+        with as_file(files(other_package) / 'data') as pkgdata:
+            func(pkgdata)
+
+    .. automethod:: readable
+
+    .. automethod:: as_path
+
+    .. automethod:: cached
+    """
+
+    def __init__(self, anchor: Union[str, ModuleType]):
+        self._anchor = anchor
+        self.files = files(anchor)
+        self.exit_stack = ExitStack()
+        atexit.register(self.exit_stack.close)
+        # Allow class to have a different docstring from instances
+        self.__doc__ = self._doc
+
+    @cached_property
+    def _doc(self):
+        """Construct docstring for instances
+
+        Lists the public top-level paths inside the location, where
+        non-public means has a `.` or `_` prefix or is a 'tests'
+        directory.
+        """
+        top_level = sorted(
+            os.path.relpath(p, self.files) + "/"[: p.is_dir()]
+            for p in self.files.iterdir()
+            if p.name[0] not in (".", "_") and p.name != "tests"
+        )
+        doclines = [
+            f"Load package files relative to ``{self._anchor}``.",
+            "",
+            "This package contains the following (top-level) files/directories:",
+            "",
+            *(f"* ``{path}``" for path in top_level),
+        ]
+
+        return "\n".join(doclines)
+
+    def readable(self, *segments) -> Traversable:
+        """Provide read access to a resource through a Path-like interface.
+
+        This file may or may not exist on the filesystem, and may be
+        efficiently used for read operations, including directory traversal.
+
+        This result is not cached or copied to the filesystem in cases where
+        that would be necessary.
+        """
+        return self.files.joinpath(*segments)
+
+    def as_path(self, *segments) -> AbstractContextManager[Path]:
+        """Ensure data is available as a :class:`~pathlib.Path`.
+
+        This method generates a context manager that yields a Path when
+        entered.
+
+        This result is not cached, and any temporary files that are created
+        are deleted when the context is exited.
+        """
+        return as_file(self.files.joinpath(*segments))
+
+    @cache
+    def cached(self, *segments) -> Path:
+        """Ensure data is available as a :class:`~pathlib.Path`.
 
-__all__ = ["load_resource"]
+        Any temporary files that are created remain available throughout
+        the duration of the program, and are deleted when Python exits.
 
-exit_stack = ExitStack()
-atexit.register(exit_stack.close)
+        Results are cached so that multiple calls do not unpack the same
+        data multiple times, but the cache is sensitive to the specific
+        argument(s) passed.
+        """
+        return self.exit_stack.enter_context(as_file(self.files.joinpath(*segments)))
 
-path = files(__package__)
+    __call__ = cached
 
 
-@cache
-def load_resource(fname: str) -> Path:
-    return exit_stack.enter_context(as_file(path.joinpath(fname)))
+load = Loader(__package__)

nibabies/interfaces/confounds.py

@@ -114,6 +114,7 @@ class GatherConfounds(SimpleInterface):
     >>> tmpdir.cleanup()
 
     """
+
     input_spec = GatherConfoundsInputSpec
     output_spec = GatherConfoundsOutputSpec
 

nibabies/interfaces/maths.py

@@ -1,4 +1,5 @@
 """A module for interfaces """
+
 import os
 
 import numpy as np

nibabies/reports/core.py

@@ -2,7 +2,7 @@
 
 from nireports.assembler.report import Report
 
-from nibabies.data import load_resource
+from nibabies.data import load as load_data
 
 
 def run_reports(
@@ -22,7 +22,7 @@ def run_reports(
         run_uuid,
         subject=subject,
         session=session,
-        bootstrap_file=load_resource('reports-spec.yml'),
+        bootstrap_file=load_data.readable('reports-spec.yml'),
         reportlets_dir=reportlets_dir,
     ).generate_report()