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# vim:fileencoding=utf-8:noet
from __future__ import (unicode_literals, division, absolute_import, print_function)
import sys
from powerline.lint.selfcheck import havemarks
class WithPath(object):
def __init__(self, import_paths):
self.import_paths = import_paths
def __enter__(self):
self.oldpath = sys.path
sys.path = self.import_paths + sys.path
def __exit__(self, *args):
sys.path = self.oldpath
def import_function(function_type, name, data, context, echoerr, module):
havemarks(name, module)
if module == 'powerline.segments.i3wm' and name == 'workspaces':
echoerr(context='Warning while checking segments (key {key})'.format(key=context.key),
context_mark=name.mark,
problem='segment {0} from {1} is deprecated'.format(name, module),
problem_mark=module.mark)
with WithPath(data['import_paths']):
try:
func = getattr(__import__(str(module), fromlist=[str(name)]), str(name))
except ImportError:
echoerr(context='Error while checking segments (key {key})'.format(key=context.key),
context_mark=name.mark,
problem='failed to import module {0}'.format(module),
problem_mark=module.mark)
return None
except AttributeError:
echoerr(context='Error while loading {0} function (key {key})'.format(function_type, key=context.key),
problem='failed to load function {0} from module {1}'.format(name, module),
problem_mark=name.mark)
return None
if not callable(func):
echoerr(context='Error while checking segments (key {key})'.format(key=context.key),
context_mark=name.mark,
problem='imported “function” {0} from module {1} is not callable'.format(name, module),
problem_mark=module.mark)
return None
return func
def import_segment(*args, **kwargs):
return import_function('segment', *args, **kwargs)
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