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4 # without modification, are permitted provided that the following
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34 from kamaki.cli.logger import get_logger
36 log = get_logger('kamaki.cli')
39 class CLIError(Exception):
41 def __init__(self, message, details=[], importance=0):
43 @message is the main message of the Error
44 @detauls is a list of previous errors
45 @importance of the output for the user
46 Suggested values: 0, 1, 2, 3
48 message += '' if message and message[-1] == '\n' else '\n'
49 super(CLIError, self).__init__(message)
50 self.details = list(details) if isinstance(details, list)\
51 else [] if details is None else ['%s' % details]
53 self.importance = int(importance)
58 class CLIBaseUrlError(CLIError):
59 def __init__(self, message='', details=[], importance=2, service=None):
60 message = message or 'No url for %s' % service.lower()
61 details = details or [
62 'Two options to resolve this:',
63 'A. (recommended) Let kamaki discover the endpoint URLs for all',
64 'services by setting a single Authentication URL:',
65 ' /config set auth_url <AUTH_URL>',
66 'B. (advanced users) Explicitly set a valid %s endpoint URL' % (
68 'Note: auth_url option has a higher priority, so delete it to',
70 ' /config delete auth_url',
71 ' /config set %s.url <%s_URL>' % (service, service.upper())]
72 super(CLIBaseUrlError, self).__init__(message, details, importance)
75 class CLISyntaxError(CLIError):
76 def __init__(self, message='Syntax Error', details=[], importance=1):
77 super(CLISyntaxError, self).__init__(message, details, importance)
80 class CLIUnknownCommand(CLIError):
81 def __init__(self, message='Unknown Command', details=[], importance=1):
82 super(CLIUnknownCommand, self).__init__(message, details, importance)
85 class CLICmdSpecError(CLIError):
87 self, message='Command Specification Error',
88 details=[], importance=0):
89 super(CLICmdSpecError, self).__init__(message, details, importance)
92 class CLICmdIncompleteError(CLICmdSpecError):
94 self, message='Incomplete Command Error',
95 details=[], importance=1):
96 super(CLICmdSpecError, self).__init__(message, details, importance)
99 def raiseCLIError(err, message='', importance=0, details=[]):
101 :param err: (Exception) the original error message, if None, a new
102 CLIError is born which is conceptually bind to raiser
104 :param message: (str) a custom error message that overrides err's
106 :param importance: (int) instruction to called application (e.g. for
107 coloring printed error messages)
109 :param details: (list) various information on the error
111 :raises CLIError: it is the purpose of this method
113 from traceback import format_stack
115 stack = ['%s' % type(err)] if err else ['<kamaki.cli.errors.CLIError>']
116 stack += format_stack()
118 stack = [e for e in stack if e != stack[1]]
120 log.debug('\n < '.join(stack))
122 details = ['%s' % details] if not isinstance(details, list)\
124 details += getattr(err, 'details', [])
128 origerr = origerr if origerr else '%s' % type(err)
132 message = '%s' % (message if message else origerr)
135 status = err.status or err.errno
136 except AttributeError:
139 if origerr not in details + [message]:
140 details.append(origerr)
142 message += '' if message and message[-1] == '\n' else '\n'
144 message = '(%s) %s' % (err.status, message)
146 status = int(err.status)
148 raise CLIError(message, details, importance)
149 importance = importance if importance else status // 100
150 importance = getattr(err, 'importance', importance)
151 raise CLIError(message, details, importance)