/usr/lib/python3/dist-packages/plainbox/impl/commands/inv_parse.py is in python3-plainbox 0.25-1.
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The actual contents of the file can be viewed below.
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#
# Copyright 2012-2014 Canonical Ltd.
# Written by:
# Zygmunt Krynicki <zygmunt.krynicki@canonical.com>
#
# Checkbox is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License version 3,
# as published by the Free Software Foundation.
#
# Checkbox 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 Checkbox. If not, see <http://www.gnu.org/licenses/>.
"""
:mod:`plainbox.impl.commands.inv_parser` -- parser sub-command
==============================================================
"""
import io
import sys
from plainbox.i18n import gettext as _
class ParseInvocation:
"""
Invocation of the 'parse' command
"""
def __init__(self, parser, encoding='UTF-8'):
self.parser = parser
self.encoding = encoding
def run(self):
# This little trick is required to get around 'ascii' encoding that
# stdin unfortunately has when piped to. Using the embedded 'buffer'
# attribute of sys.stdin we can construct a TextIOWrapper with
# different, arbitrary encoding.
if (isinstance(sys.stdin, io.TextIOWrapper)
and sys.stdin.encoding != self.encoding):
with io.TextIOWrapper(sys.stdin.buffer, encoding='UTF-8') as stdin:
text = self._do_read(stdin)
else:
text = self._do_read(sys.stdin)
# If we didn't manage to read text from stdin, abort
if text is None:
return 1
# Parse all input and get the json representation
json_text = self.parser.parse_text_to_json(text)
# If we didn't manage to parse input, abort
if json_text is None:
return 2
# Print the json representation
print(json_text)
return 0
def _do_read(self, stream):
try:
return stream.read()
except UnicodeEncodeError:
print(_("Unable to decode input stream, must be valid UTF-8"),
file=sys.stderr)
return None
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