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'''
sphinx_pipe.py - this file is part of S3QL (http://s3ql.googlecode.com)
Implements a Sphinx extension that provides a `pipeinclude` directive
to include the output of a program.
Copyright © 2008 Nikolaus Rath <Nikolaus@rath.org>
This program can be distributed under the terms of the GNU GPLv3.
'''
from docutils.parsers.rst.directives.misc import Include
import subprocess
import shlex
from docutils.utils.error_reporting import SafeString
import tempfile
import os.path
import sys
class PipeInclude(Include):
"""
Include program output as ReST source.
"""
def run(self):
# To maximize code reuse, we just write the output in a temporary
# file and call the base class. Otherwise we'd have to copy & paste
# all the code to handle start-line, end-line etc options.
source = self.state_machine.input_lines.source(
self.lineno - self.state_machine.input_offset - 1)
source_dir = os.path.dirname(os.path.abspath(source))
command = self.arguments[0]
command_list = shlex.split(command)
if command_list[0] == 'python':
command_list[0] = sys.executable
with tempfile.NamedTemporaryFile() as fh:
exitcode = subprocess.call(command_list, stdout=fh,
cwd=source_dir)
if exitcode != 0:
raise self.severe('Problems with "%s" directive:\n'
'Command %s returned with exit code %d' %
(self.name, SafeString(command), exitcode))
fh.flush()
self.arguments[0] = fh.name
return super().run()
def setup(app):
app.add_directive('pipeinclude', PipeInclude)
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