Add sphinx-lint check

Author: rffontenelle

.github/workflows/test-translations.yml

@@ -78,4 +78,4 @@ jobs:
 
     - name: Lint translation file
       if: always()
-      run: sphinx-lint locales/${{ matrix.language }}/LC_MESSAGES/messages.po
+      run: nox -s sphinx_lint -- locales/${{ matrix.language }}/LC_MESSAGES/messages.po

.github/workflows/test.yml

@@ -22,6 +22,7 @@ jobs:
         noxenv:
         - build
         - linkcheck
+        - sphinx_lint
 
     steps:
       - uses: actions/checkout@v3

noxfile.py

@@ -104,3 +104,17 @@ def checkqa(session):
         "--all-files",
         "--show-diff-on-failure",
     )
+
+
+@nox.session()
+def sphinx_lint(session):
+    """
+    Check for reST format issues in source rst files,
+    accepting another path as positional argument.
+    """
+    session.install("sphinx-lint==1.0.0")
+    target = session.posargs if len(session.posargs) >= 1 else ["source"]
+    session.run(
+        "sphinx-lint",
+        *target
+    )