mirror of
https://github.com/ilyakooo0/urbit.git
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348 lines
12 KiB
Python
Executable File
348 lines
12 KiB
Python
Executable File
#!/usr/bin/python
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# TODO:
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# - -h text
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# - output to clay
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import sys
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import logging
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import json
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import requests
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import argparse
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import base64
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PORT = 12322
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logging.basicConfig(level=logging.WARNING,
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format='%(levelname)s %(funcName)s %(lineno)s - %(message)s',
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stream=sys.stderr)
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logging.debug(['sys.argv', sys.argv])
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def preprocess_args(old_args):
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"""Split out []
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We use [] to delimit tuples. The following syntaxes are all equivalent:
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-- --open --open a b --close --open c d --close --close
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-- [ [ a b ] [ c d ] ]
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-- [ [a b] [c d] ]
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-- [[a b] [c d]]
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-- etc
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We don't allow [[a b][c d]]. The rule is that we accept zero or more [ at
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the beginning of a token and zero or more ] at the end of a token.
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In this function, we convert all legal syntaxes to as if they were entered
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as in the first example above. This allows them to be parsed by a
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relatively sane argparse system.
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"""
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if old_args == []:
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return []
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if old_args[0][0] == '[':
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if len(old_args[0]) > 1:
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return ['--open'] + preprocess_args([old_args[0][1:]] + old_args[1:])
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else:
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return ['--open'] + preprocess_args(old_args[1:])
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if old_args[0][-1] == ']':
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if len(old_args[0]) > 1:
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return preprocess_args([old_args[0][:-1]]) + \
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['--close'] + preprocess_args(old_args[1:])
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else:
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return ['--close'] + preprocess_args(old_args[1:])
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return [old_args[0]] + preprocess_args(old_args[1:])
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args = preprocess_args(sys.argv[1:])
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logging.debug(['preprocessed', args])
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class sourceAction(argparse.Action):
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"""Handle source flag.
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This is all the 'primitive' source flags -- no nesting, no tuple stuff,
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just one flag with one argument.
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Besides the normal argparse.Action arguments, we require the following named
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argument:
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-- which='foo'. Since all source flags use res.source, this specifies the
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key of the entry for this flag.
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"""
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def __init__(self, option_strings, dest, **kwargs):
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self.which = kwargs['which']
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del kwargs['which']
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super(sourceAction, self).__init__(option_strings, dest, **kwargs)
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def __call__(self, parser, res, new_value, option_string):
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logging.debug('%r %r' % (new_value, option_string))
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logging.debug('source %s' % res.source)
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logging.debug('level %s' % res.level)
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if res.source is not None:
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def help(source, level):
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logging.debug('source %s' % source)
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logging.debug('level %s' % level)
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if not isinstance(source, list):
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raise ValueError('Already specified one source')
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elif level == 0:
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raise ValueError('Already specified a source %r %s' % (source, level))
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elif level == 1:
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return source + [self.construct_value(new_value)]
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else:
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return source[:-1] + [help(source[-1], level - 1)]
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res.source = help(res.source, res.level)
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else:
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res.source = \
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self.construct_value(new_value)
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logging.debug(res.source)
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def construct_value(self, new_value):
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if new_value == '-':
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return self.construct_value(''.join(sys.stdin))
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elif new_value[0:2] == '@@':
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with open(new_value[2:]) as f:
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content = f.readlines()
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return self.construct_value(''.join(content))
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else:
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return {self.which: new_value}
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class transformerAction(argparse.Action):
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"""Handle transformer flag.
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This is all the tranformer flags. Each flag takes one argument and
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transforms the previous source.
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Besides the normal argparse.Action arguments, we require the following named
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arguments:
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-- which='foo'. Since all source flags use res.source, this specifies the
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key of the entry for this flag.
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-- nesting='foo'. The key for the argument is 'foo'.
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"""
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def __init__(self, option_strings, dest, **kwargs):
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self.which = kwargs['which']
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self.nesting = kwargs['nesting']
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del kwargs['which']
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del kwargs['nesting']
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super(transformerAction, self).__init__(option_strings, dest, **kwargs)
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def __call__(self, parser, res, new_value, option_string):
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logging.debug('%r %r' % (new_value, option_string))
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logging.debug('source %s' % res.source)
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logging.debug('level %s' % res.level)
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if res.source is None:
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raise ValueError('Need source before transformer')
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else:
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def help(source, level):
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logging.debug('source %s' % source)
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logging.debug('level %s' % level)
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if level == 0 or level is None:
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return {self.which: {self.nesting: new_value, "next": source}}
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elif not isinstance(source, list):
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raise ValueError('Already specified one source')
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else:
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return source[:-1] + [help(source[-1], level - 1)]
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res.source = help(res.source, res.level)
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logging.debug(res.source)
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class openAction(argparse.Action):
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"""Handle open tuple.
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Opens a source tuple. Can only exist in the same places as any other
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source.
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"""
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def __init__(self, option_strings, dest, **kwargs):
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super(openAction, self).__init__(option_strings, dest, **kwargs)
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def __call__(self, parser, res, new_value, option_string):
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if res.level is None:
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res.level = 0
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logging.debug('source %s' % res.source)
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logging.debug('level %s' % res.level)
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if res.source is None:
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res.source = []
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res.level = 1
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return
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def help(source, level):
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if not isinstance(source, list):
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raise ValueError('Starting tuple after source is finished')
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if level == 1:
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return (source + [[]], level + 1)
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elif level > 1:
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rsource, rlevel = help(source[-1], level - 1)
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return (source[:-1] + [rsource], rlevel + 1)
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else:
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raise ValueError('opening strange level %r %s' % (source, level))
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res.source, res.level = help(res.source, res.level)
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class closeAction(argparse.Action):
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"""Handle close tuple.
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Closes a source tuple. Can only exist when a tuple is already open.
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"""
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def __init__(self, option_strings, dest, **kwargs):
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super(closeAction, self).__init__(option_strings, dest, **kwargs)
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def __call__(self, parser, res, new_value, option_string):
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if res.level is None:
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raise ValueError('Ending tuple before starting one')
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logging.debug('level %s' % res.level)
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if res.source is None:
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raise ValueError('Ending tuple with empty source')
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def help(source, level):
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if not isinstance(source, list):
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raise ValueError('Ending tuple that isn\'t a tuple')
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if level == 1:
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return level - 1
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elif level > 1:
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return help(source[-1], level - 1) + 1
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else:
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raise ValueError('closing strange level %r %s' % (source, level))
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res.level = help(res.source, res.level)
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logging.debug('level %s' % res.level)
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class sinkAction(argparse.Action):
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"""Handle sink flag.
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We expect only one sinkAction to ever be executed. We recommend using
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mutually_exclusive_group's.
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Besides the normal action flags, we require the following named argument:
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-- which='foo'. Since all sink flags use res.sink, this specifies the key
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of the entry for this flag.
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"""
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def __init__(self, option_strings, dest, **kwargs):
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self.which = kwargs['which']
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del kwargs['which']
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super(sinkAction, self).__init__(option_strings, dest, **kwargs)
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def __call__(self, parser, res, new_value, option_string):
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res.sink = self.construct_value(new_value)
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logging.debug(res.sink)
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def construct_value(self, new_value):
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if self.which == 'output-file':
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return {self.which: new_value[::-1].replace('.','/',1)[::-1]}
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else:
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return {self.which: new_value}
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parser = argparse.ArgumentParser(description='headless urbit')
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parser.add_argument('-d', '--dojo', which='dojo',
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metavar='command-line',
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help='run dojo command',
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action=sourceAction, dest='source')
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parser.add_argument('-D', '--data', which='data',
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metavar='text',
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help='literal text data',
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action=sourceAction)
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parser.add_argument('-c', '--clay', which='clay',
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metavar='clay-path',
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help='load data from clay',
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action=sourceAction)
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parser.add_argument('-u', '--url', which='url',
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metavar='url',
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help='pull data from url',
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action=sourceAction)
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parser.add_argument('-a', '--api', which='api',
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metavar='command',
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help='get data from api',
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action=sourceAction)
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parser.add_argument('-g', '--get-api', which='get-api',
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metavar='api:endpoint',
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help='get data from api endpoint',
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action=sourceAction)
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parser.add_argument('-l', '--listen-api', which='listen-api',
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metavar='api:event',
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help='listen to event from api',
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action=sourceAction)
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parser.add_argument('-m', '--mark', which='as',
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metavar='mark',
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help='transform a source to another mark',
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nesting='mark',
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action=transformerAction)
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parser.add_argument('-H', '--hoon', which='hoon',
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metavar='code',
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help='transform a source by hoon code',
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nesting='code',
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action=transformerAction)
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parser.add_argument('--open',
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nargs=0,
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help='start tuple',
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action=openAction, dest='level')
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parser.add_argument('--close',
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nargs=0,
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help='stop tuple',
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action=closeAction)
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sinks = parser.add_mutually_exclusive_group()
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sinks.add_argument('-s', '--stdout', const={'stdout': None},
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default={'stdout': None},
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action='store_const', dest='sink')
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sinks.add_argument('-f', '--output-file', which='output-file',
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metavar='path',
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action=sinkAction)
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sinks.add_argument('-C', '--output-clay', which='output-clay',
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metavar='clay-path',
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action=sinkAction)
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sinks.add_argument('-U', '--output-url', which='url',
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metavar='url',
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action=sinkAction)
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sinks.add_argument('-t', '--to-api', which='to-api',
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metavar='api-command',
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action=sinkAction)
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sinks.add_argument('-n', '--send-api', which='send-api',
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metavar='api:endpoint',
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action=sinkAction)
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sinks.add_argument('-x', '--command', which='command',
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metavar='command',
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action=sinkAction)
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sinks.add_argument('-p', '--app', which='app',
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metavar='app',
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action=sinkAction)
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args = parser.parse_args(args)
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if args.source is None:
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args.source = {"data": ''.join(sys.stdin)}
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payload = {"source": args.source, "sink": args.sink}
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logging.debug(['payload', json.dumps(payload)])
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url = "http://localhost:%s" % PORT
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r = requests.post(url, data=json.dumps(payload))
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if r.text[0] == '"':
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print r.text[1:-1].decode('string_escape')
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elif r.text[0] == '{':
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# print r.text
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json_data = json.loads(r.text)
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logging.debug(json_data)
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with open(json_data['file'][:0:-1].replace('/','.',1)[::-1], 'w') as f:
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f.write(base64.b64decode(json_data['data']))
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else:
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logging.warn("unrecognized response")
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print r.text
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