bpo-42238: [doc] moving from rstlint.py to sphinx-lint. (GH-31097)

Doc/Makefile

@@ -7,6 +7,7 @@
 PYTHON       = python3
 VENVDIR      = ./venv
 SPHINXBUILD  = PATH=$(VENVDIR)/bin:$$PATH sphinx-build
+SPHINXLINT   = PATH=$(VENVDIR)/bin:$$PATH sphinx-lint
 BLURB        = PATH=$(VENVDIR)/bin:$$PATH blurb
 PAPER        =
 SOURCES      =
@@ -214,8 +215,8 @@ dist:
 	rm dist/python-$(DISTVERSION)-docs-texinfo.tar
 
 check:
-	$(PYTHON) tools/rstlint.py -i tools -i $(VENVDIR) -i README.rst
-	$(PYTHON) tools/rstlint.py ../Misc/NEWS.d/next/
+	$(SPHINXLINT) -i tools -i $(VENVDIR) -i README.rst
+	$(SPHINXLINT) ../Misc/NEWS.d/next/
 
 serve:
 	$(PYTHON) ../Tools/scripts/serve.py build/html $(SERVE_PORT)

Doc/make.bat

@@ -36,6 +36,16 @@ if not defined BLURB (
     set BLURB=%PYTHON% -m blurb
 )
 
+if not defined SPHINXLINT (
+    %PYTHON% -c "import sphinxlint" > nul 2> nul
+    if errorlevel 1 (
+        echo Installing sphinx-lint with %PYTHON%
+        %PYTHON% -m pip install sphinx-lint
+        if errorlevel 1 exit /B
+    )
+    set SPHINXLINT=%PYTHON% -m sphinxlint
+)
+
 if "%1" NEQ "htmlhelp" goto :skiphhcsearch
 if exist "%HTMLHELP%" goto :skiphhcsearch
 
@@ -168,7 +178,7 @@ if EXIST "%BUILDDIR%\html\index.html" (
 goto end
 
 :check
-cmd /S /C "%PYTHON% tools\rstlint.py -i tools"
+cmd /S /C "%SPHINXLINT% -i tools"
 goto end
 
 :serve

Doc/requirements.txt

@@ -7,6 +7,8 @@ sphinx==4.2.0
 
 blurb
 
+sphinx-lint<1
+
 # The theme used by the documentation is stored separately, so we need
 # to install that as well.
 python-docs-theme>=2022.1

Doc/tools/rstlint.py

@@ -345,6 +345,11 @@ Options:  -v       verbose (print all checked file names)
 
     count = defaultdict(int)
 
+    print("""⚠ rstlint.py is no longer maintained here and will be removed
+⚠ in a future release.
+⚠ Please use https://pypi.org/p/sphinx-lint instead.
+""")
+
     for root, dirs, files in os.walk(path):
         # ignore subdirs in ignore list
         if abspath(root) in ignore:

Misc/NEWS.d/next/Documentation/2022-02-03-11-24-59.bpo-42238.yJcMa8.rst

@@ -0,0 +1,2 @@
+``Doc/tools/rstlint.py`` has moved to its own repository and is now packaged
+on PyPI as ``sphinx-lint``.