Nox and ci updates

.github/dependabot.yml

@@ -6,7 +6,12 @@ updates:
     schedule:
       interval: "weekly"
     labels:
-      - "maintenance"
+      - "maintenance :construction:"
+    groups:
+      # Group all pip dependencies into one PR
+      pip-dependencies:
+        patterns:
+          - "*"
     # Update via cruft
     ignore:
       - dependency-name: "mkdocs*"
@@ -19,7 +24,7 @@ updates:
     schedule:
       interval: "weekly"
     labels:
-      - "maintenance"
+      - "maintenance :construction:"
     # Update via cruft
     ignore:
       - dependency-name: "actions/checkout"

.github/workflows/post-dependabot-update.yml

@@ -0,0 +1,31 @@
+name: Post Dependabot Update
+on:
+  pull_request:
+    branches: [main]
+    paths:
+      - dev/**
+
+jobs:
+  auto-update:
+    if: github.actor == 'dependabot[bot]'
+    runs-on: ubuntu-latest
+    permissions:
+      contents: write
+      pull-requests: write
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          ref: ${{ github.head_ref }}
+
+      - uses: hynek/setup-cached-uv@v2
+
+      - name: Run tests
+        run: uvx nox --sessions flavours-codegen
+
+      - name: Commit changes
+        run: |
+          git config user.name "github-actions[bot]"
+          git config user.email "github-actions[bot]@users.noreply.github.com"
+          git add upath/_flavour_sources.py
+          git commit -m "Auto-update generated flavours" || echo "No changes"
+          git push

.github/workflows/release.yml

@@ -20,19 +20,10 @@ jobs:
       with:
         fetch-depth: 0
 
-    - name: Set up Python 3.10
-      uses: actions/setup-python@v5
-      with:
-        python-version: '3.10'
-
-    - name: Upgrade pip and nox
-      run: |
-        pip install --upgrade pip nox
-        pip --version
-        nox --version
+    - uses: hynek/setup-cached-uv@v2
 
     - name: Build package
-      run: nox -s build
+      run: uvx nox -s build
 
     - name: Upload package
       if: github.event_name == 'release'

.github/workflows/tests.yml

@@ -59,7 +59,7 @@ jobs:
     - uses: hynek/setup-cached-uv@v2
 
     - name: Run tests
-      run: uvx nox --sessions typesafety --python ${{ matrix.pyv }}
+      run: uvx nox --sessions type-safety --python ${{ matrix.pyv }}
 
   lint:
     runs-on: ubuntu-latest
@@ -70,19 +70,10 @@ jobs:
       with:
         fetch-depth: 0
 
-    - name: Set up Python
-      uses: actions/setup-python@v5
-      with:
-        python-version: '3.10'
-
-    - name: Upgrade pip and nox
-      run: |
-        python -m pip install --upgrade pip nox
-        pip --version
-        nox --version
+    - uses: hynek/setup-cached-uv@v2
 
     - name: Lint code and check dependencies
-      run: nox -s lint
+      run: uvx nox -s lint
 
   build:
     needs: [tests, lint]
@@ -93,16 +84,7 @@ jobs:
       with:
         fetch-depth: 0
 
-    - name: Set up Python
-      uses: actions/setup-python@v5
-      with:
-        python-version: '3.10'
-
-    - name: Install dependencies
-      run: |
-        python -m pip install --upgrade pip nox
-        pip --version
-        nox --version
+    - uses: hynek/setup-cached-uv@v2
 
     - name: Build package
-      run: nox -s build
+      run: uvx nox -s build

noxfile.py

@@ -2,22 +2,56 @@
 
 import glob
 import os
+import sys
 
 import nox
 
 nox.options.reuse_existing_virtualenvs = True
 nox.options.error_on_external_run = True
 
-nox.needs_version = ">=2024.3.2"
-nox.options.default_venv_backend = "uv|virtualenv"
+nox.needs_version = ">=2024.04.15"
+nox.options.default_venv_backend = "uv"
 
-nox.options.sessions = "lint", "tests"
+nox.options.sessions = "lint", "tests", "type-checking", "type-safety"
 locations = ("upath",)
 running_in_ci = os.environ.get("CI", "") != ""
 
+SUPPORTED_PYTHONS = ["3.9", "3.10", "3.11", "3.12", "3.13", "3.14"]
+BASE_PYTHON = SUPPORTED_PYTHONS[-3]
+MIN_PYTHON = SUPPORTED_PYTHONS[0]
+
+
+@(lambda f: f())
+def FSSPEC_MIN_VERSION() -> str:
+    """Get the minimum fsspec version boundary from pyproject.toml."""
+    try:
+        from packaging.requirements import Requirement
+
+        if sys.version_info >= (3, 11):
+            from tomllib import load as toml_load
+        else:
+            from tomli import load as toml_load
+    except ImportError:
+        raise RuntimeError(
+            "We rely on nox>=2024.04.15 depending on `packaging` and `tomli/tomllib`."
+            " Please report if you see this error."
+        )
+
+    with open("pyproject.toml", "rb") as f:
+        pyproject_data = toml_load(f)
+
+    for requirement in pyproject_data["project"]["dependencies"]:
+        req = Requirement(requirement)
+        if req.name == "fsspec":
+            for specifier in req.specifier:
+                if specifier.operator == ">=":
+                    return str(specifier.version)
+    raise RuntimeError("Could not find fsspec minimum version in pyproject.toml")
+
 
-@nox.session(python=["3.9", "3.10", "3.11", "3.12", "3.13", "3.14"])
+@nox.session(python=SUPPORTED_PYTHONS)
 def tests(session: nox.Session) -> None:
+    """Run the test suite."""
     # workaround in case no aiohttp binary wheels are available
     if session.python == "3.14":
         session.env["AIOHTTP_NO_EXTENSIONS"] = "1"
@@ -36,9 +70,9 @@ def tests(session: nox.Session) -> None:
     )
 
 
-@nox.session(python="3.9", name="tests-minversion")
+@nox.session(python=MIN_PYTHON, name="tests-minversion")
 def tests_minversion(session: nox.Session) -> None:
-    session.install("fsspec==2024.5.0", ".[tests,dev]")
+    session.install(f"fsspec=={FSSPEC_MIN_VERSION}", ".[tests,dev]")
     session.run("uv", "pip", "freeze", silent=not running_in_ci)
     session.run(
         "pytest",
@@ -51,8 +85,12 @@ def tests_minversion(session: nox.Session) -> None:
     )
 
 
+tests_minversion.__doc__ = f"Run the test suite with fsspec=={FSSPEC_MIN_VERSION}."
+
+
 @nox.session
 def lint(session: nox.Session) -> None:
+    """Run pre-commit hooks."""
     session.install("pre-commit")
     session.install("-e", ".[tests]")
 
@@ -70,6 +108,7 @@ def safety(session: nox.Session) -> None:
 
 @nox.session
 def build(session: nox.Session) -> None:
+    """Build sdists and wheels."""
     session.install("build", "setuptools", "twine")
     session.run("python", "-m", "build")
     dists = glob.glob("dist/*")
@@ -79,31 +118,19 @@ def build(session: nox.Session) -> None:
 @nox.session
 def develop(session: nox.Session) -> None:
     """Sets up a python development environment for the project."""
-    args = session.posargs or ("venv",)
-    venv_dir = os.fsdecode(os.path.abspath(args[0]))
-
-    session.log(f"Setting up virtual environment in {venv_dir}")
-    session.install("virtualenv")
-    session.run("virtualenv", venv_dir, silent=True)
+    session.run("uv", "venv", external=True)
 
-    python = os.path.join(venv_dir, "bin/python")
-    session.run(python, "-m", "pip", "install", "-e", ".[tests,dev]", external=True)
 
-
-@nox.session
-def black(session):
-    print("please run `nox -s lint` instead")
-    raise SystemExit(1)
-
-
-@nox.session
+@nox.session(name="type-checking", python=BASE_PYTHON)
 def type_checking(session):
+    """Run mypy checks."""
     session.install("-e", ".[typechecking]")
     session.run("python", "-m", "mypy")
 
 
-@nox.session(python=["3.9", "3.10", "3.11", "3.12", "3.13", "3.14"])
-def typesafety(session):
+@nox.session(name="type-safety", python=SUPPORTED_PYTHONS)
+def type_safety(session):
+    """Run typesafety tests."""
     session.install("-e", ".[typechecking]")
     session.run(
         "python",
@@ -119,7 +146,12 @@ def typesafety(session):
     )
 
 
-@nox.session(python="3.12")
+@nox.session(name="flavours-upgrade-deps", python=BASE_PYTHON)
+def upgrade_flavours(session):
+    session.run("uvx", "pur", "-r", "dev/requirements.txt")
+
+
+@nox.session(name="flavours-codegen", python=BASE_PYTHON)
 def generate_flavours(session):
     session.install("-r", "dev/requirements.txt")
     with open("upath/_flavour_sources.py", "w") as target: