httpie-cli/httpie/context.py
2016-09-06 11:50:56 +01:00

100 lines
3.0 KiB
Python

import sys
try:
import curses
except ImportError:
curses = None # Compiled w/o curses
from httpie.compat import is_windows
from httpie.config import DEFAULT_CONFIG_DIR, Config
from httpie.utils import repr_dict_nice
class Environment(object):
"""
Information about the execution context
(standard streams, config directory, etc).
By default, it represents the actual environment.
All of the attributes can be overwritten though, which
is used by the test suite to simulate various scenarios.
"""
is_windows = is_windows
config_dir = DEFAULT_CONFIG_DIR
stdin = sys.stdin
stdin_isatty = stdin.isatty()
stdin_encoding = None
stdout = sys.stdout
stdout_isatty = stdout.isatty()
stdout_encoding = None
stderr = sys.stderr
stderr_isatty = stderr.isatty()
colors = 256
if not is_windows:
if curses:
try:
curses.setupterm()
colors = curses.tigetnum('colors')
except curses.error:
pass
else:
# noinspection PyUnresolvedReferences
import colorama.initialise
stdout = colorama.initialise.wrap_stream(
stdout, convert=None, strip=None,
autoreset=True, wrap=True
)
stderr = colorama.initialise.wrap_stream(
stderr, convert=None, strip=None,
autoreset=True, wrap=True
)
del colorama
def __init__(self, **kwargs):
"""
Use keyword arguments to overwrite
any of the class attributes for this instance.
"""
assert all(hasattr(type(self), attr) for attr in kwargs.keys())
self.__dict__.update(**kwargs)
# Keyword arguments > stream.encoding > default utf8
if self.stdin_encoding is None:
self.stdin_encoding = getattr(
self.stdin, 'encoding', None) or 'utf8'
if self.stdout_encoding is None:
actual_stdout = self.stdout
if is_windows:
# noinspection PyUnresolvedReferences
from colorama import AnsiToWin32
if isinstance(self.stdout, AnsiToWin32):
actual_stdout = self.stdout.wrapped
self.stdout_encoding = getattr(
actual_stdout, 'encoding', None) or 'utf8'
@property
def config(self):
if not hasattr(self, '_config'):
self._config = Config(directory=self.config_dir)
if self._config.is_new():
self._config.save()
else:
self._config.load()
return self._config
def __str__(self):
defaults = dict(type(self).__dict__)
actual = dict(defaults)
actual.update(self.__dict__)
actual['config'] = self.config
return repr_dict_nice(dict(
(key, value)
for key, value in actual.items()
if not key.startswith('_'))
)
def __repr__(self):
return '<{0} {1}>'.format(type(self).__name__, str(self))