Coverage for /pythoncovmergedfiles/medio/medio/usr/local/lib/python3.8/site-packages/airflow/utils/platform.py: 40%

1# Licensed to the Apache Software Foundation (ASF) under one 

2# or more contributor license agreements. See the NOTICE file 

3# distributed with this work for additional information 

4# regarding copyright ownership. The ASF licenses this file 

5# to you under the Apache License, Version 2.0 (the 

6# "License"); you may not use this file except in compliance 

7# with the License. You may obtain a copy of the License at 

8# 

9# http://www.apache.org/licenses/LICENSE-2.0 

10# 

11# Unless required by applicable law or agreed to in writing, 

12# software distributed under the License is distributed on an 

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14# KIND, either express or implied. See the License for the 

15# specific language governing permissions and limitations 

16# under the License. 

17"""Platform and system specific function.""" 

18from __future__ import annotations 

19 

20import getpass 

21import logging 

22import os 

23import pkgutil 

24import platform 

25import sys 

26 

27from airflow.compat.functools import cache 

28 

29IS_WINDOWS = platform.system() == "Windows" 

30 

31log = logging.getLogger(__name__) 

32 

33 

34def is_tty(): 

35 """ 

36 Checks if the standard output is connected (is associated with a terminal device) to a tty(-like) 

37 device. 

38 """ 

39 if not hasattr(sys.stdout, "isatty"): 

40 return False 

41 return sys.stdout.isatty() 

42 

43 

44def is_terminal_support_colors() -> bool: 

45 """Try to determine if the current terminal supports colors.""" 

46 if sys.platform == "win32": 

47 return False 

48 if not is_tty(): 

49 return False 

50 if "COLORTERM" in os.environ: 

51 return True 

52 term = os.environ.get("TERM", "dumb").lower() 

53 if term in ("xterm", "linux") or "color" in term: 

54 return True 

55 return False 

56 

57 

58def get_airflow_git_version(): 

59 """Returns the git commit hash representing the current version of the application.""" 

60 git_version = None 

61 try: 

62 git_version = str(pkgutil.get_data("airflow", "git_version"), encoding="UTF-8") 

63 except Exception as e: 

64 log.debug(e) 

65 

66 return git_version 

67 

68 

69@cache 

70def getuser() -> str: 

71 """ 

72 Gets the username associated with the current user, or error with a nice 

73 error message if there's no current user. 

74 

75 We don't want to fall back to os.getuid() because not having a username 

76 probably means the rest of the user environment is wrong (e.g. no $HOME). 

77 Explicit failure is better than silently trying to work badly. 

78 """ 

79 try: 

80 return getpass.getuser() 

81 except KeyError: 

82 # Inner import to avoid circular import 

83 from airflow.exceptions import AirflowConfigException 

84 

85 raise AirflowConfigException( 

86 "The user that Airflow is running as has no username; you must run" 

87 "Airflow as a full user, with a username and home directory, " 

88 "in order for it to function properly." 

89 )