e747bc1da8
Uses algorithm borrowed from networkx graph library to sort a graph in topological order. The method is only used by output plugins, as internal plumbery does not really care about the node order. Also includes a bonobo.util.python.require function that helps importing thing in a package-less context, or when there are conflict with site package names.
109 lines
3.4 KiB
Python
109 lines
3.4 KiB
Python
# -*- coding: utf-8 -*-
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#
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# Copyright 2012-2017 Romain Dorgueil
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import functools
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import sys
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from colorama import Fore, Style
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from bonobo.plugins import Plugin
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from bonobo.util.term import CLEAR_EOL, MOVE_CURSOR_UP
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@functools.lru_cache(1)
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def memory_usage():
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import os, psutil
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process = psutil.Process(os.getpid())
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return process.get_memory_info()[0] / float(2**20)
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# @lru_cache(64)
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# def execution_time(harness):
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# return datetime.datetime.now() - harness._started_at
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class ConsoleOutputPlugin(Plugin):
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"""
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Outputs status information to the connected stdout. Can be a TTY, with or without support for colors/cursor
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movements, or a non tty (pipe, file, ...). The features are adapted to terminal capabilities.
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.. attribute:: prefix
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String prefix of output lines.
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"""
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def initialize(self):
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self.prefix = ''
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def _write(self, graph_context, rewind):
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profile, debug = False, False
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if profile:
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append = (
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('Memory', '{0:.2f} Mb'.format(memory_usage())),
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# ('Total time', '{0} s'.format(execution_time(harness))),
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)
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else:
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append = ()
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self.write(graph_context, prefix=self.prefix, append=append, debug=debug, profile=profile, rewind=rewind)
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def run(self):
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if sys.stdout.isatty():
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self._write(self.context.parent, rewind=True)
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else:
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pass # not a tty
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def finalize(self):
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self._write(self.context.parent, rewind=False)
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@staticmethod
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def write(context, prefix='', rewind=True, append=None, debug=False, profile=False):
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t_cnt = len(context)
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for i in context.graph.topologically_sorted_indexes:
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node = context[i]
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if node.alive:
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_line = ''.join(
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(
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' ', Style.BRIGHT, '+', Style.RESET_ALL, ' ', node.name, '(', str(i), ') ',
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node.get_statistics_as_string(debug=debug, profile=profile), Style.RESET_ALL, ' ',
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)
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)
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else:
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_line = ''.join(
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(
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' ', Fore.BLACK, '-', ' ', node.name, '(', str(i), ') ',
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node.get_statistics_as_string(debug=debug, profile=profile), Style.RESET_ALL, ' ',
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)
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)
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print(prefix + _line + '\033[0K')
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if append:
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# todo handle multiline
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print(
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''.join(
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(
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' `-> ', ' '.join('{}{}{}: {}'.format(Style.BRIGHT, k, Style.RESET_ALL, v)
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for k, v in append), CLEAR_EOL
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)
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)
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)
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t_cnt += 1
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if rewind:
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print(CLEAR_EOL)
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print(MOVE_CURSOR_UP(t_cnt + 2))
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