gitlab-pipeline-status (6894B)
1#!/usr/bin/env python3 2# 3# Copyright (c) 2019-2020 Red Hat, Inc. 4# 5# Author: 6# Cleber Rosa <crosa@redhat.com> 7# 8# This work is licensed under the terms of the GNU GPL, version 2 or 9# later. See the COPYING file in the top-level directory. 10 11""" 12Checks the GitLab pipeline status for a given commit ID 13""" 14 15# pylint: disable=C0103 16 17import argparse 18import http.client 19import json 20import os 21import subprocess 22import time 23import sys 24 25 26class CommunicationFailure(Exception): 27 """Failed to communicate to gitlab.com APIs.""" 28 29 30class NoPipelineFound(Exception): 31 """Communication is successfull but pipeline is not found.""" 32 33 34def get_local_branch_commit(branch): 35 """ 36 Returns the commit sha1 for the *local* branch named "staging" 37 """ 38 result = subprocess.run(['git', 'rev-parse', branch], 39 stdin=subprocess.DEVNULL, 40 stdout=subprocess.PIPE, 41 stderr=subprocess.DEVNULL, 42 cwd=os.path.dirname(__file__), 43 universal_newlines=True).stdout.strip() 44 if result == branch: 45 raise ValueError("There's no local branch named '%s'" % branch) 46 if len(result) != 40: 47 raise ValueError("Branch '%s' HEAD doesn't look like a sha1" % branch) 48 return result 49 50 51def get_json_http_response(url): 52 """ 53 Returns the JSON content of an HTTP GET request to gitlab.com 54 """ 55 connection = http.client.HTTPSConnection('gitlab.com') 56 connection.request('GET', url=url) 57 response = connection.getresponse() 58 if response.code != http.HTTPStatus.OK: 59 msg = "Received unsuccessful response: %s (%s)" % (response.code, 60 response.reason) 61 raise CommunicationFailure(msg) 62 return json.loads(response.read()) 63 64 65def get_pipeline_status(project_id, commit_sha1): 66 """ 67 Returns the JSON content of the pipeline status API response 68 """ 69 url = '/api/v4/projects/{}/pipelines?sha={}'.format(project_id, 70 commit_sha1) 71 json_response = get_json_http_response(url) 72 73 # As far as I can tell, there should be only one pipeline for the same 74 # project + commit. If this assumption is false, we can add further 75 # filters to the url, such as username, and order_by. 76 if not json_response: 77 msg = "No pipeline found for project %s and commit %s" % (project_id, 78 commit_sha1) 79 raise NoPipelineFound(msg) 80 return json_response[0] 81 82 83def wait_on_pipeline_success(timeout, interval, 84 project_id, commit_sha): 85 """ 86 Waits for the pipeline to finish within the given timeout 87 """ 88 start = time.time() 89 while True: 90 if time.time() >= (start + timeout): 91 msg = ("Timeout (-t/--timeout) of %i seconds reached, " 92 "won't wait any longer for the pipeline to complete") 93 msg %= timeout 94 print(msg) 95 return False 96 97 try: 98 status = get_pipeline_status(project_id, commit_sha) 99 except NoPipelineFound: 100 print('Pipeline has not been found, it may not have been created yet.') 101 time.sleep(1) 102 continue 103 104 pipeline_status = status['status'] 105 status_to_wait = ('created', 'waiting_for_resource', 'preparing', 106 'pending', 'running') 107 if pipeline_status in status_to_wait: 108 print('%s...' % pipeline_status) 109 time.sleep(interval) 110 continue 111 112 if pipeline_status == 'success': 113 return True 114 115 msg = "Pipeline failed, check: %s" % status['web_url'] 116 print(msg) 117 return False 118 119 120def create_parser(): 121 parser = argparse.ArgumentParser( 122 prog='pipeline-status', 123 description='check or wait on a pipeline status') 124 125 parser.add_argument('-t', '--timeout', type=int, default=7200, 126 help=('Amount of time (in seconds) to wait for the ' 127 'pipeline to complete. Defaults to ' 128 '%(default)s')) 129 parser.add_argument('-i', '--interval', type=int, default=60, 130 help=('Amount of time (in seconds) to wait between ' 131 'checks of the pipeline status. Defaults ' 132 'to %(default)s')) 133 parser.add_argument('-w', '--wait', action='store_true', default=False, 134 help=('Wether to wait, instead of checking only once ' 135 'the status of a pipeline')) 136 parser.add_argument('-p', '--project-id', type=int, default=11167699, 137 help=('The GitLab project ID. Defaults to the project ' 138 'for https://gitlab.com/qemu-project/qemu, that ' 139 'is, "%(default)s"')) 140 parser.add_argument('-b', '--branch', type=str, default="staging", 141 help=('Specify the branch to check. ' 142 'Use HEAD for your current branch. ' 143 'Otherwise looks at "%(default)s"')) 144 parser.add_argument('-c', '--commit', 145 default=None, 146 help=('Look for a pipeline associated with the given ' 147 'commit. If one is not explicitly given, the ' 148 'commit associated with the default branch ' 149 'is used.')) 150 parser.add_argument('--verbose', action='store_true', default=False, 151 help=('A minimal verbosity level that prints the ' 152 'overall result of the check/wait')) 153 return parser 154 155def main(): 156 """ 157 Script entry point 158 """ 159 parser = create_parser() 160 args = parser.parse_args() 161 162 if not args.commit: 163 args.commit = get_local_branch_commit(args.branch) 164 165 success = False 166 try: 167 if args.wait: 168 success = wait_on_pipeline_success( 169 args.timeout, 170 args.interval, 171 args.project_id, 172 args.commit) 173 else: 174 status = get_pipeline_status(args.project_id, 175 args.commit) 176 success = status['status'] == 'success' 177 except Exception as error: # pylint: disable=W0703 178 if args.verbose: 179 print("ERROR: %s" % error.args[0]) 180 except KeyboardInterrupt: 181 if args.verbose: 182 print("Exiting on user's request") 183 184 if success: 185 if args.verbose: 186 print('success') 187 sys.exit(0) 188 else: 189 if args.verbose: 190 print('failure') 191 sys.exit(1) 192 193 194if __name__ == '__main__': 195 main()