Add workflow to exercise bindings (#1041)

.github/workflows/test_bindings.yml

+name: test-bindings
+
+on:
+  push:
+    branches: [master]
+  pull_request:
+    branches: [master]
+
+jobs:
+  python_bindings:
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v2
+      - name: Set up Python
+        uses: actions/setup-python@v1
+        with:
+          python-version: 3.8
+      - name: Install benchmark
+        run:
+          python setup.py install
+      - name: Run example bindings
+        run:
+          python bindings/python/google_benchmark/example.py

setup.py

@@ -83,17 +83,17 @@ class BuildBazelExtension(build_ext.build_ext):
             for library_dir in self.library_dirs:
                 bazel_argv.append('--linkopt=/LIBPATH:' + library_dir)
 
-            self.spawn(bazel_argv)
-
-            shared_lib_suffix = '.dll' if IS_WINDOWS else '.so'
-            ext_bazel_bin_path = os.path.join(
-                self.build_temp, 'bazel-bin',
-                ext.relpath, ext.target_name + shared_lib_suffix)
-            ext_dest_path = self.get_ext_fullpath(ext.name)
-            ext_dest_dir = os.path.dirname(ext_dest_path)
-            if not os.path.exists(ext_dest_dir):
-                os.makedirs(ext_dest_dir)
-            shutil.copyfile(ext_bazel_bin_path, ext_dest_path)
+        self.spawn(bazel_argv)
+
+        shared_lib_suffix = '.dll' if IS_WINDOWS else '.so'
+        ext_bazel_bin_path = os.path.join(
+            self.build_temp, 'bazel-bin',
+            ext.relpath, ext.target_name + shared_lib_suffix)
+        ext_dest_path = self.get_ext_fullpath(ext.name)
+        ext_dest_dir = os.path.dirname(ext_dest_path)
+        if not os.path.exists(ext_dest_dir):
+            os.makedirs(ext_dest_dir)
+        shutil.copyfile(ext_bazel_bin_path, ext_dest_path)
 
 
 setuptools.setup(