chore: import upstream snapshot with attribution

tools/check_only_change_python_files.py

@@ -0,0 +1,74 @@
+# Copyright (c) 2020 PaddlePaddle Authors. All Rights Reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+"""For the PR that only modified the unit test, get cases in pull request."""
+
+import os
+import ssl
+import sys
+
+from github import Github
+
+PADDLE_ROOT = os.getenv('PADDLE_ROOT', '/paddle/')
+PADDLE_ROOT += '/'
+PADDLE_ROOT = PADDLE_ROOT.replace('//', '/')
+ssl._create_default_https_context = ssl._create_unverified_context
+
+
+class PRChecker:
+    """PR Checker."""
+
+    def __init__(self):
+        self.github = Github(os.getenv('GITHUB_API_TOKEN'), timeout=60)
+        self.repo = self.github.get_repo('PaddlePaddle/Paddle')
+        self.pr = None
+
+    def init(self):
+        """Get pull request."""
+        pr_id = os.getenv('GIT_PR_ID')
+        if not pr_id:
+            print('PREC No PR ID')
+            sys.exit(0)
+        self.pr = self.repo.get_pull(int(pr_id))
+
+    def get_pr_files(self):
+        """Get files in pull request."""
+        page = 0
+        file_dict = {}
+        while True:
+            files = self.pr.get_files().get_page(page)
+            if not files:
+                break
+            for f in files:
+                file_dict[PADDLE_ROOT + f.filename] = f.status
+            page += 1
+        print(f"pr modify files: {file_dict}")
+        return file_dict
+
+    def check_only_change_python_file(self):
+        file_dict = self.get_pr_files()
+        for filename in file_dict:
+            if not (
+                filename.startswith(PADDLE_ROOT + 'python/')
+                and filename.endswith('.py')
+            ):
+                return False
+        return True
+
+
+if __name__ == '__main__':
+    pr_checker = PRChecker()
+    pr_checker.init()
+    if pr_checker.check_only_change_python_file():
+        with open('only_change_python_file.txt', 'w') as f:
+            f.write('yes')