CI: script to cancel twin pipelines

CI/check_twin_pipelines.py

+#
+# Copyright (C) 2005-2019 Centre National d'Etudes Spatiales (CNES)
+#
+# This file is part of Orfeo Toolbox
+#
+#     https://www.orfeo-toolbox.org/
+#
+# 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.
+#
+
+import os
+import urllib.request
+import urllib.parse
+import json
+
+"""
+Check for any duplicated twin pipeline and cancel it
+"""
+if __name__ == "__main__":
+  env = os.environ
+  sha1 = env['CI_COMMIT_SHA']
+  if 'CI_MERGE_REQUEST_IID' in env.keys():
+    gitlab_url = "https://gitlab.orfeo-toolbox.org/api/v4/projects/"
+    gitlab_url+= env['CI_PROJECT_ID'] + '/pipelines?sha='+sha1
+    gitlab_request = urllib.request.Request(gitlab_url)
+    gitlab_request.add_header('PRIVATE-TOKEN' , env['K8S_SECRET_TWIN_PIPELINE'] )
+    res = urllib.request.urlopen(gitlab_request).read().decode()
+    jres = json.loads(res)
+    for item in jres:
+      if item["id"] < int(env['CI_PIPELINE_ID']) and item["status"] == "running":
+        gitlab_url = "https://gitlab.orfeo-toolbox.org/api/v4/projects/"
+        gitlab_url+= env['CI_PROJECT_ID'] + '/pipelines/'+str(item["id"])+'/cancel'
+        gitlab_request = urllib.request.Request(gitlab_url)
+        gitlab_request.add_header('PRIVATE-TOKEN' , env['K8S_SECRET_TWIN_PIPELINE'] )
+        res2 = urllib.request.urlopen(gitlab_request).read().decode()