66 lines · python
1#2# //===----------------------------------------------------------------------===//3# //4# // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.5# // See https://llvm.org/LICENSE.txt for license information.6# // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception7# //8# //===----------------------------------------------------------------------===//9#10 11import os12import subprocess13import sys14 15 16class ScriptError(Exception):17 """Convenience class for user errors generated"""18 19 def __init__(self, msg):20 super(Exception, self).__init__(msg)21 22 23def error(msg):24 raise ScriptError(msg)25 26 27def print_line(msg, form="i"):28 print("{}: ({}) {}".format(os.path.basename(sys.argv[0]), form, msg))29 30 31def print_info_line(msg):32 print_line(msg)33 34 35def print_error_line(msg):36 print_line(msg, form="x")37 38 39class RunResult:40 """41 Auxiliary class for execute_command() containing the42 results of running a command43 """44 45 def __init__(self, args, stdout, stderr, returncode):46 self.executable = args[0]47 self.stdout = stdout.decode("utf-8")48 self.stderr = stderr.decode("utf-8")49 self.returncode = returncode50 self.command = " ".join(args)51 52 53def execute_command(args):54 """55 Run a command with arguments: args56 57 Return RunResult containing stdout, stderr, returncode58 """59 handle = subprocess.Popen(args, stdout=subprocess.PIPE, stderr=subprocess.PIPE)60 stdout, stderr = handle.communicate()61 returncode = handle.wait()62 return RunResult(args, stdout, stderr, returncode)63 64 65# end of file66