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# Copyright 2016 Lars Wirzenius
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
#
# =*= License: GPL-3+ =*=
import logging
class LineLogger(object): # pragma: no cover
def __init__(self, progress, logger):
self._progress = progress
self._progress_lines = []
self._logger = logger
self._buffer = ''
self._lineno = 0
def log_lines(self, text):
self._buffer += text
while '\n' in self._buffer:
line, self._buffer = self._buffer.split('\n', 1)
self._log_line(line)
# Return empty string so that cliapp doesn't collect
# potentially large amounts of text pointlessly.
return ''
def _log_line(self, line):
self._lineno += 1
line = '{lineno:>04}: {line}'.format(lineno=self._lineno, line=line)
logging.debug('STDOUT: %s', line)
self._logger.chatty('{line}', line=line)
lines = self._progress_lines
max_lines = self._progress.max_output_lines
lines.append(line)
if len(lines) > max_lines:
del lines[:-max_lines]
for i, line in enumerate(lines):
self._progress['line%d' % i] = line
for i in range(len(lines), max_lines + 1):
self._progress['line%d' % i] = ''
def log_rest(self):
if self._buffer:
self._log_line(self._buffer)
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