69 lines
2.3 KiB
Python
69 lines
2.3 KiB
Python
|
# -*- coding: utf-8 -*-
|
||
|
|
#
|
||
|
|
# Copyright (C) 2015 Matt Martz <matt@sivel.net>
|
||
|
|
# Copyright (C) 2015 Rackspace US, Inc.
|
||
|
|
#
|
||
|
|
# 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/>.
|
||
|
|
|
||
|
|
import ast
|
||
|
|
import sys
|
||
|
|
|
||
|
|
# We only use StringIO, since we cannot setattr on cStringIO
|
||
|
|
from StringIO import StringIO
|
||
|
|
|
||
|
|
|
||
|
|
def find_globals(g, tree):
|
||
|
|
"""Uses AST to find globals in an ast tree"""
|
||
|
|
for child in tree:
|
||
|
|
if hasattr(child, 'body') and isinstance(child.body, list):
|
||
|
|
find_globals(g, child.body)
|
||
|
|
elif isinstance(child, (ast.FunctionDef, ast.ClassDef)):
|
||
|
|
g.add(child.name)
|
||
|
|
continue
|
||
|
|
elif isinstance(child, ast.Assign):
|
||
|
|
try:
|
||
|
|
g.add(child.targets[0].id)
|
||
|
|
except (IndexError, AttributeError):
|
||
|
|
pass
|
||
|
|
elif isinstance(child, ast.Import):
|
||
|
|
g.add(child.names[0].name)
|
||
|
|
elif isinstance(child, ast.ImportFrom):
|
||
|
|
for name in child.names:
|
||
|
|
g_name = name.asname or name.name
|
||
|
|
if g_name == '*':
|
||
|
|
continue
|
||
|
|
g.add(g_name)
|
||
|
|
|
||
|
|
|
||
|
|
class CaptureStd():
|
||
|
|
"""Context manager to handle capturing stderr and stdout"""
|
||
|
|
|
||
|
|
def __enter__(self):
|
||
|
|
self.sys_stdout = sys.stdout
|
||
|
|
self.sys_stderr = sys.stderr
|
||
|
|
sys.stdout = self.stdout = StringIO()
|
||
|
|
sys.stderr = self.stderr = StringIO()
|
||
|
|
setattr(sys.stdout, 'encoding', self.sys_stdout.encoding)
|
||
|
|
setattr(sys.stderr, 'encoding', self.sys_stderr.encoding)
|
||
|
|
return self
|
||
|
|
|
||
|
|
def __exit__(self, exc_type, exc_value, traceback):
|
||
|
|
sys.stdout = self.sys_stdout
|
||
|
|
sys.stderr = self.sys_stderr
|
||
|
|
|
||
|
|
def get(self):
|
||
|
|
"""Return ``(stdout, stderr)``"""
|
||
|
|
|
||
|
|
return self.stdout.getvalue(), self.stderr.getvalue()
|