Add pre-commit config with sensible hooks; apply those hooks

.github/workflows/ci.yaml

@@ -54,4 +54,4 @@ jobs:
         uses: pypa/[email protected]
         with:
           user: __token__
-          password: ${{ secrets.PYPI_API_TOKEN }}
+          password: ${{ secrets.PYPI_API_TOKEN }}

.pre-commit-config.yaml

@@ -0,0 +1,24 @@
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at https://mozilla.org/MPL/2.0/.
+
+# Global excludes, override per repo below if different excludes required.
+# exclude: >
+#   (?x)^(
+#     DIRNAME_OR_FILENAME_HERE
+#     | DIRNAME_OR_FILENAME_HERE
+#     | DIRNAME_OR_FILENAME_HERE
+#   )
+repos:
+  # Note: hooks that add content must run before ones which check formatting, lint, etc
+  - repo: https://github.com/pre-commit/pre-commit-hooks
+    rev: v4.5.0  # Use the ref you want to point at
+    hooks:
+      - id: check-yaml
+      - id: end-of-file-fixer
+      - id: trailing-whitespace
+  - repo: https://github.com/charliermarsh/ruff-pre-commit
+    rev: v0.1.14
+    hooks:
+      - id: ruff
+        args: [--fix, --exit-non-zero-on-fix]

CODE_OF_CONDUCT.md

@@ -1,8 +1,8 @@
 # Community Participation Guidelines
 
-This repository is governed by Mozilla's code of conduct and etiquette guidelines. 
+This repository is governed by Mozilla's code of conduct and etiquette guidelines.
 For more details, please read the
-[Mozilla Community Participation Guidelines](https://www.mozilla.org/about/governance/policies/participation/). 
+[Mozilla Community Participation Guidelines](https://www.mozilla.org/about/governance/policies/participation/).
 
 ## How to Report
 For more information on how to report violations of the Community Participation Guidelines, please read our '[How to Report](https://www.mozilla.org/about/governance/policies/participation/reporting/)' page.

LICENSE

@@ -25,4 +25,3 @@ LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
 ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-

docs/trusted_types.rst

@@ -119,7 +119,7 @@ dangerous sink that requires Trusted Types.
 ``Step 3: Enforce Trusted Types``
 =================================
 Once you have addressed all of the Trusted Types violations present in your
-application, you can begin enforcing Trusted Types to prevent DOM XSS. 
+application, you can begin enforcing Trusted Types to prevent DOM XSS.
 
 Configure django-csp so that ``CSP_REPORT_ONLY`` is set to *False*.
 

ruff.toml

@@ -57,4 +57,4 @@ docstring-code-format = false
 #
 # This only has an effect when the `docstring-code-format` setting is
 # enabled.
-docstring-code-line-length = "dynamic"
+docstring-code-line-length = "dynamic"