Enforce semantic line breaks with Snapper

Author: adamtheturtle

.github/workflows/semantic-line-breaks.yml

@@ -0,0 +1,29 @@
+name: Semantic line breaks
+
+on:
+  pull_request:
+  push:
+    branches:
+      - main
+
+permissions: {}
+
+jobs:
+  semantic-line-breaks:
+    name: Snapper
+    runs-on: ubuntu-latest
+    steps:
+      - name: Check out repository
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
+        with:
+          persist-credentials: false
+      - uses: astral-sh/setup-uv@20cfd1bf945f4377ade1205e4dbc17946fc9a30d # v10.0.1
+      - name: Check semantic line breaks
+        run: >-
+          git ls-files -z -- '*.md' '*.rst' ':(exclude)vendored/**'
+          | xargs -0 --no-run-if-empty
+          uvx
+          --from
+          'git+https://github.com/TurtleTech-ehf/snapper.git@bcd3458e27e4156ce4e0a0b55a227400328fb3b1'
+          snapper --max-width 0 --check
+

.snapperrc.toml

@@ -0,0 +1,5 @@
+# These files contain markup constructs that Snapper main does not yet preserve.
+ignore = [
+  "docs/source/commands.rst",
+]
+

CHANGELOG.rst

@@ -6,8 +6,7 @@ Changelog
 2026.09.08
 ----------
 
-- Check that Gatekeeper accepts the signed and notarized macOS binaries during
-  the release, and remove the quarantine workaround from the install docs.
+- Check that Gatekeeper accepts the signed and notarized macOS binaries during the release, and remove the quarantine workaround from the install docs.
 
 2026.08.30.5
 ------------

docs/source/unreleased.rst

@@ -1,8 +1,8 @@
 Unreleased changes
 ==================
 
-Changes that have landed on the main branch but are not yet part of a
-tagged release.  These entries are assembled into the
+Changes that have landed on the main branch but are not yet part of a tagged release.
+These entries are assembled into the
 :doc:`changelog` when the next release is published.
 
 .. towncrier-draft-entries::