forked from extern/httpie-cli
129 lines
3.9 KiB
Python
129 lines
3.9 KiB
Python
import sys
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import os
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from pathlib import Path
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from typing import IO, Optional
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try:
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import curses
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except ImportError:
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curses = None # Compiled w/o curses
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from .compat import is_windows
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from .config import DEFAULT_CONFIG_DIR, Config, ConfigFileError
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from .utils import repr_dict
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class Environment:
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"""
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Information about the execution context
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(standard streams, config directory, etc).
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By default, it represents the actual environment.
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All of the attributes can be overwritten though, which
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is used by the test suite to simulate various scenarios.
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"""
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is_windows: bool = is_windows
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config_dir: Path = DEFAULT_CONFIG_DIR
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stdin: Optional[IO] = sys.stdin # `None` when closed fd (#791)
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stdin_isatty: bool = stdin.isatty() if stdin else False
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stdin_encoding: str = None
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stdout: IO = sys.stdout
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stdout_isatty: bool = stdout.isatty()
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stdout_encoding: str = None
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stderr: IO = sys.stderr
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stderr_isatty: bool = stderr.isatty()
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colors = 256
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program_name: str = 'http'
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if not is_windows:
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if curses:
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try:
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curses.setupterm()
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colors = curses.tigetnum('colors')
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except curses.error:
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pass
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else:
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# noinspection PyUnresolvedReferences
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import colorama.initialise
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stdout = colorama.initialise.wrap_stream(
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stdout, convert=None, strip=None,
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autoreset=True, wrap=True
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)
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stderr = colorama.initialise.wrap_stream(
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stderr, convert=None, strip=None,
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autoreset=True, wrap=True
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)
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del colorama
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def __init__(self, devnull=None, **kwargs):
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"""
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Use keyword arguments to overwrite
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any of the class attributes for this instance.
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"""
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assert all(hasattr(type(self), attr) for attr in kwargs.keys())
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self.__dict__.update(**kwargs)
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# The original STDERR unaffected by --quiet’ing.
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self._orig_stderr = self.stderr
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self._devnull = devnull
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# Keyword arguments > stream.encoding > default utf8
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if self.stdin and self.stdin_encoding is None:
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self.stdin_encoding = getattr(
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self.stdin, 'encoding', None) or 'utf8'
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if self.stdout_encoding is None:
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actual_stdout = self.stdout
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if is_windows:
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# noinspection PyUnresolvedReferences
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from colorama import AnsiToWin32
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if isinstance(self.stdout, AnsiToWin32):
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# noinspection PyUnresolvedReferences
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actual_stdout = self.stdout.wrapped
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self.stdout_encoding = getattr(
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actual_stdout, 'encoding', None) or 'utf8'
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def __str__(self):
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defaults = dict(type(self).__dict__)
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actual = dict(defaults)
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actual.update(self.__dict__)
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actual['config'] = self.config
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return repr_dict({
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key: value
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for key, value in actual.items()
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if not key.startswith('_')
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})
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def __repr__(self):
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return f'<{type(self).__name__} {self}>'
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_config: Config = None
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@property
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def config(self) -> Config:
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config = self._config
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if not config:
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self._config = config = Config(directory=self.config_dir)
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if not config.is_new():
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try:
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config.load()
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except ConfigFileError as e:
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self.log_error(e, level='warning')
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return config
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@property
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def devnull(self) -> IO:
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if self._devnull is None:
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self._devnull = open(os.devnull, 'w+')
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return self._devnull
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@devnull.setter
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def devnull(self, value):
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self._devnull = value
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def log_error(self, msg, level='error'):
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assert level in ['error', 'warning']
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self._orig_stderr.write(f'\n{self.program_name}: {level}: {msg}\n\n')
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