bpo-36329: Replace 'make serve' with 'make htmlview' (python#826)

* bpo-36329: Replace 'make serve' with 'make htmlview'

* Document htmlview in help

* Direct users of serve towards htmlview instead

* Add quotes around target names for clarity

Author: hugovk

Makefile

@@ -14,12 +14,12 @@ PAPEROPT_letter = -D latex_paper_size=letter
 ALLSPHINXOPTS   = -d $(BUILDDIR)/doctrees $(PAPEROPT_$(PAPER)) $(SPHINXOPTS) .
 
 .PHONY: help clean html dirhtml singlehtml pickle json htmlhelp qthelp \
-        devhelp epub latex latexpdf text man changes linkcheck doctest check \
-        serve
+        devhelp epub latex latexpdf text man changes linkcheck doctest htmlview check
 
 help:
 	@echo "Please use \`make <target>' where <target> is one of"
 	@echo "  html       to make standalone HTML files"
+	@echo "  htmlview   to open the index page built by the html target in your browser"
 	@echo "  dirhtml    to make HTML files named index.html in directories"
 	@echo "  singlehtml to make a single large HTML file"
 	@echo "  pickle     to make pickle files"
@@ -36,7 +36,6 @@ help:
 	@echo "  linkcheck  to check all external links for integrity"
 	@echo "  doctest    to run all doctests embedded in the documentation (if enabled)"
 	@echo "  check      to run a check for frequent markup errors"
-	@echo "  serve      to serve devguide on the localhost (8000)"
 
 clean:
 	-rm -rf $(BUILDDIR)/*
@@ -139,8 +138,12 @@ doctest: venv
 	@echo "Testing of doctests in the sources finished, look at the " \
 	      "results in $(BUILDDIR)/doctest/output.txt."
 
+htmlview: html
+	$(PYTHON) -c "import os, webbrowser; webbrowser.open('file://' + os.path.realpath('_build/html/index.html'))"
+
 check:
 	$(PYTHON) tools/rstlint.py -i tools -i venv
 
-serve: html
-	tools/serve.py _build/html
+serve:
+	@echo "The 'serve' target was removed, use 'htmlview' instead" \
+	      "(see https://github.com/python/cpython/issues/80510)"

make.bat

@@ -17,13 +17,13 @@ if NOT "%PAPER%" == "" (
 )
 
 if "%1" == "check" goto check
-if "%1" == "serve" goto serve
 
 if "%1" == "" goto help
 if "%1" == "help" (
 	:help
 	echo.Please use `make ^<target^>` where ^<target^> is one of
 	echo.  html       to make standalone HTML files
+	echo.  htmlview   to open the index page built by the html target in your browser
 	echo.  dirhtml    to make HTML files named index.html in directories
 	echo.  singlehtml to make a single large HTML file
 	echo.  pickle     to make pickle files
@@ -39,7 +39,6 @@ if "%1" == "help" (
 	echo.  linkcheck  to check all external links for integrity
 	echo.  doctest    to run all doctests embedded in the documentation if enabled
 	echo.  check      to check for stylistic and formal issues using rstlint
-	echo.  serve      to serve devguide on the localhost ^(8000^)
 	goto end
 )
 
@@ -49,7 +48,7 @@ if "%1" == "clean" (
 	goto end
 )
 
-rem Targets other than "clean", "check", "serve", "help", or "" need the
+rem Targets other than "clean", "check", "help", or "" need the
 rem Sphinx build command, which the user may define via SPHINXBUILD.
 
 if not defined SPHINXBUILD (
@@ -72,6 +71,17 @@ if "%1" == "html" (
 	goto end
 )
 
+if "%1" == "htmlview" (
+    cmd /C %this% html
+
+    if EXIST "%BUILDDIR%\html\index.html" (
+        echo.Opening "%BUILDDIR%\html\index.html" in the default web browser...
+        start "" "%BUILDDIR%\html\index.html"
+    )
+
+    goto end
+)
+
 if "%1" == "dirhtml" (
 	%SPHINXBUILD% -b dirhtml %ALLSPHINXOPTS% %BUILDDIR%/dirhtml
 	if errorlevel 1 exit /b 1
@@ -196,7 +206,8 @@ cmd /C %PYTHON% tools\rstlint.py -i tools -i venv
 goto end
 
 :serve
-cmd /C %PYTHON% tools\serve.py %BUILDDIR%\html
+	echo.The serve target was removed, use htmlview instead ^
+(see https://github.com/python/cpython/issues/80510)
 goto end
 
 :end