Closes #4614: sphinx-build: Add :option:--keep-going option to show all warnings

CHANGES

@@ -162,6 +162,7 @@ Features added
   if :confval:`latex_engine` is ``'xelatex'`` or ``'lualatex'``.
 * #4976: ``SphinxLoggerAdapter.info()`` now supports ``location`` parameter
 * #5122: setuptools: support nitpicky option
+* #4614: sphinx-build: Add ``--keep-going`` option to show all warnings
 
 Bugs fixed
 ----------

doc/man/sphinx-build.rst

@@ -229,6 +229,13 @@ Options
    Turn warnings into errors.  This means that the build stops at the first
    warning and ``sphinx-build`` exits with exit status 1.
 
+.. option:: --keep-going
+
+   With -W option, keep going processing when getting warnings to the end
+   of build, and ``sphinx-build`` exits with exit status 1.
+
+   .. versionadded:: 1.8
+
 .. option:: -T
 
    Display the full traceback when an unhandled exception occurs.  Otherwise,

sphinx/application.py

@@ -128,8 +128,8 @@ class Sphinx(object):
     def __init__(self, srcdir, confdir, outdir, doctreedir, buildername,
                  confoverrides=None, status=sys.stdout, warning=sys.stderr,
                  freshenv=False, warningiserror=False, tags=None, verbosity=0,
-                 parallel=0):
-        # type: (unicode, unicode, unicode, unicode, unicode, Dict, IO, IO, bool, bool, List[unicode], int, int) -> None  # NOQA
+                 parallel=0, keep_going=False):
+        # type: (unicode, unicode, unicode, unicode, unicode, Dict, IO, IO, bool, bool, List[unicode], int, int, bool) -> None  # NOQA
         self.phase = BuildPhase.INITIALIZATION
         self.verbosity = verbosity
         self.extensions = {}                    # type: Dict[unicode, Extension]
@@ -172,7 +172,11 @@ class Sphinx(object):
         else:
             self._warning = warning
         self._warncount = 0
-        self.warningiserror = warningiserror
+        self.keep_going = warningiserror and keep_going
+        if self.keep_going:
+            self.warningiserror = False
+        else:
+            self.warningiserror = warningiserror
         logging.setup(self, self._status, self._warning)
 
         self.events = EventManager()
@@ -334,6 +338,9 @@ class Sphinx(object):
                 self.builder.compile_update_catalogs()
                 self.builder.build_update()
 
+            if self._warncount and self.keep_going:
+                self.statuscode = 1
+
             status = (self.statuscode == 0 and
                       __('succeeded') or __('finished with problems'))
             if self._warncount:

sphinx/cmd/build.py

@@ -189,6 +189,8 @@ files can be built by specifying individual filenames.
                        help=__('write warnings (and errors) to given file'))
     group.add_argument('-W', action='store_true', dest='warningiserror',
                        help=__('turn warnings into errors'))
+    group.add_argument('--keep-going', action='store_true', dest='keep_going',
+                       help=__("With -W, Keep going when getting warnings"))
     group.add_argument('-T', action='store_true', dest='traceback',
                        help=__('show full traceback on exception'))
     group.add_argument('-P', action='store_true', dest='pdb',
@@ -298,7 +300,7 @@ def build_main(argv=sys.argv[1:]):  # type: ignore
             app = Sphinx(args.sourcedir, args.confdir, args.outputdir,
                          args.doctreedir, args.builder, confoverrides, status,
                          warning, args.freshenv, args.warningiserror,
-                         args.tags, args.verbosity, args.jobs)
+                         args.tags, args.verbosity, args.jobs, args.keep_going)
             app.build(args.force_all, filenames)
             return app.statuscode
     except (Exception, KeyboardInterrupt) as exc: