mirror of
https://github.com/xonsh/xonsh.git
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64 lines
1.7 KiB
Python
64 lines
1.7 KiB
Python
"""Bash-like interface extensions for xonsh."""
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import shlex
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import sys
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from prompt_toolkit.keys import Keys
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from prompt_toolkit.filters import Condition, EmacsInsertMode, ViInsertMode
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from xonsh.platform import ptk_shell_type
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__all__ = ()
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@events.on_transform_command
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def bash_preproc(cmd, **kw):
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if not __xonsh__.history.inps:
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if cmd.strip() == '!!':
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return ''
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return cmd
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return cmd.replace('!!', __xonsh__.history.inps[-1].strip())
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@events.on_ptk_create
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def custom_keybindings(bindings, **kw):
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if ptk_shell_type() == 'prompt_toolkit2':
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handler = bindings.add
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else:
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handler = bindings.registry.add_binding
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insert_mode = ViInsertMode() | EmacsInsertMode()
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@Condition
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def last_command_exists():
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return len(__xonsh__.history) > 0
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@handler(Keys.Escape, '.', filter=last_command_exists &
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insert_mode)
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def recall_last_arg(event):
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arg = __xonsh__.history[-1].cmd.split()[-1]
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event.current_buffer.insert_text(arg)
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def alias(args, stdin=None):
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ret = 0
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if args:
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for arg in args:
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if '=' in arg:
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# shlex.split to remove quotes, e.g. "foo='echo hey'" into
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# "foo=echo hey"
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name, cmd = shlex.split(arg)[0].split('=', 1)
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aliases[name] = shlex.split(cmd)
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elif arg in aliases:
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print('{}={}'.format(arg, aliases[arg]))
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else:
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print("alias: {}: not found".format(arg), file=sys.stderr)
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ret = 1
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else:
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for alias, cmd in aliases.items():
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print('{}={}'.format(alias, cmd))
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return ret
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aliases['alias'] = alias
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