BLD: simplify build_ext (#1135)

setup.py

@@ -1,7 +1,7 @@
 #!/usr/bin/env python
 import os
 import subprocess
-from distutils.errors import CCompilerError, DistutilsExecError, DistutilsPlatformError
+from distutils.errors import CompileError
 
 from setuptools import setup, Extension
 from setuptools.command.sdist import sdist
@@ -36,56 +36,17 @@ def __check_submodules(self):
                 raise ValueError('Submodule not clean: %s' % line)
 
 
-class BuildFailed(Exception):
-    pass
-
-
 class optional_build_ext(build_ext):
-    def run(self):
+    def build_extensions(self):
         try:
-            build_ext.run(self)
-        except DistutilsPlatformError:
-            raise BuildFailed()
-
-    def build_extension(self, ext):
-        try:
-            build_ext.build_extension(self, ext)
-        except (CCompilerError, DistutilsExecError, DistutilsPlatformError,
-                IOError, ValueError):
-            raise BuildFailed()
-
-
-try:
-    # Set default options for setuptools sphinx command;
-    # setup(command_options=...) can't specify two builders
-    from sphinx.setup_command import BuildDoc as BuildDocSphinx
-    class BuildDoc(BuildDocSphinx):
-        def initialize_options(self):
-            super(BuildDoc, self).initialize_options()
-            self.builder = ['html', 'man']
-except ImportError:
-    BuildDoc = None
+            super().build_extensions()
+        except CompileError:
+            self.extensions = []
+            super().build_extensions()
 
 
-def run_setup(build_binary=False):
-    ext_modules = []
-    if build_binary:
-        ext_modules = ext_modules.append(Extension("asv._rangemedian", ["asv/_rangemedian.cpp"]))
-
-    cmdclass = {'build_ext': optional_build_ext, 'sdist': sdist_checked}
-
-    if BuildDoc is not None:
-        cmdclass['build_sphinx'] = BuildDoc
-
+if __name__ == "__main__":
     setup(
-        ext_modules=ext_modules,
-        cmdclass=cmdclass,
+        ext_modules=[Extension("asv._rangemedian", ["asv/_rangemedian.cpp"])],
+        cmdclass={"build_ext": optional_build_ext, "sdist": sdist_checked},
     )
-
-
-if __name__ == "__main__":
-    try:
-        run_setup(build_binary=True)
-    except BuildFailed:
-        print("Compiling asv._rangemedian failed -- continuing without it")
-        run_setup(build_binary=False)