Clean up lint and add downstream checks (#373)

.github/workflows/downstream.yml

@@ -0,0 +1,82 @@
+name: Test downstream projects
+
+on:
+  push:
+    branches: ["main"]
+  pull_request:
+
+concurrency:
+  group: downstream-${{ github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  ipykernel:
+    runs-on: ubuntu-latest
+    timeout-minutes: 15
+    steps:
+      - uses: actions/checkout@v4
+      - uses: jupyterlab/maintainer-tools/.github/actions/base-setup@v1
+      - uses: jupyterlab/maintainer-tools/.github/actions/downstream-test@v1
+        with:
+          package_name: ipykernel
+
+  nbclient:
+    runs-on: ubuntu-latest
+    timeout-minutes: 15
+    steps:
+      - uses: actions/checkout@v4
+      - uses: jupyterlab/maintainer-tools/.github/actions/base-setup@v1
+      - uses: jupyterlab/maintainer-tools/.github/actions/downstream-test@v1
+        with:
+          package_name: nbclient
+          env_values: IPYKERNEL_CELL_NAME=\<IPY-INPUT\>
+
+  nbconvert:
+    runs-on: ubuntu-latest
+    timeout-minutes: 15
+    steps:
+      - uses: actions/checkout@v4
+      - uses: jupyterlab/maintainer-tools/.github/actions/base-setup@v1
+      - uses: jupyterlab/maintainer-tools/.github/actions/downstream-test@v1
+        with:
+          package_name: nbconvert
+          package_spec: pip install -e ".[test]"
+
+  jupyter_server:
+    runs-on: ubuntu-latest
+    timeout-minutes: 15
+    steps:
+      - uses: actions/checkout@v4
+      - uses: jupyterlab/maintainer-tools/.github/actions/base-setup@v1
+      - uses: jupyterlab/maintainer-tools/.github/actions/downstream-test@v1
+        with:
+          package_name: jupyter_server
+
+  jupyter_client:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Base Setup
+        uses: jupyterlab/maintainer-tools/.github/actions/base-setup@v1
+
+      - name: Run Test
+        uses: jupyterlab/maintainer-tools/.github/actions/downstream-test@v1
+        with:
+          package_name: jupyter_client
+
+  downstreams_check: # This job does nothing and is only used for the branch protection
+    if: always()
+    needs:
+      - ipykernel
+      - nbclient
+      - nbconvert
+      - jupyter_server
+      - jupyter_client
+    runs-on: ubuntu-latest
+    steps:
+      - name: Decide whether the needed jobs succeeded or failed
+        uses: re-actors/alls-green@release/v1
+        with:
+          jobs: ${{ toJSON(needs) }}

.github/workflows/test.yml

@@ -112,7 +112,7 @@ jobs:
       - name: Run Linters
         run: |
           hatch run typing:test
-          hatch run lint:style
+          hatch run lint:build
           pipx run interrogate -v .
           pipx run doc8 --max-line-length=200
 

.pre-commit-config.yaml

@@ -44,6 +44,15 @@ repos:
       - id: blacken-docs
         additional_dependencies: [black==23.7.0]
 
+  - repo: https://github.com/pre-commit/mirrors-mypy
+    rev: "v1.6.1"
+    hooks:
+      - id: mypy
+        files: jupyter_core
+        stages: [manual]
+        args: ["--install-types", "--non-interactive"]
+        additional_dependencies: ["traitlets>=5.13", "platformdirs>=3.11"]
+
   - repo: https://github.com/codespell-project/codespell
     rev: "v2.2.6"
     hooks:

pyproject.toml

@@ -88,25 +88,16 @@ test = "python -m pytest -vv --cov jupyter_core --cov-branch --cov-report term-m
 nowarn = "test -W default {args}"
 
 [tool.hatch.envs.typing]
-features = ["test"]
-dependencies = ["mypy~=1.6.0", "traitlets>=5.13.0"]
+dependencies = ["pre-commit"]
+detached = true
 [tool.hatch.envs.typing.scripts]
-test = "mypy --install-types --non-interactive {args}"
+test = "pre-commit run --all-files --hook-stage manual mypy"
 
 [tool.hatch.envs.lint]
-dependencies = ["mdformat>0.7", "ruff==0.1.3"]
+dependencies = ["pre-commit"]
 detached = true
 [tool.hatch.envs.lint.scripts]
-style = [
-  "ruff {args:.}",
-  "ruff format {args:.}",
-  "mdformat --check {args:*.md}"
-]
-fmt = [
-  "ruff --fix {args:.}",
-  "ruff format {args:.}",
-  "mdformat {args:*.md}"
-]
+build = ["pre-commit run --all-files ruff"]
 
 [tool.mypy]
 files = "jupyter_core"
@@ -219,4 +210,4 @@ toplevel = ["jupyter_core/", "jupyter.py"]
 ignore = ["W002"]
 
 [tool.repo-review]
-ignore = ["PY007", "PP308", "GH102", "PC140"]
+ignore = ["PY007", "PP308", "GH102"]