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56 lines
1.7 KiB
Python
56 lines
1.7 KiB
Python
from xonsh.completers import completer
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from xonsh.completers.tools import RichCompletion, contextual_command_completer
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import os
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import subprocess as sp
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from xonsh.built_ins import XSH
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from xonsh.parsers.completion_context import CommandContext
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def create_rich_completion(line: str, append_space=False):
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line = line.strip()
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if "\t" in line:
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cmd, desc = map(str.strip, line.split("\t", maxsplit=1))
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else:
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cmd, desc = line, ""
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# special treatment for path completions.
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# not appending space even if it is a single candidate.
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if cmd.endswith(os.pathsep):
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append_space = False
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return RichCompletion(
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cmd,
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description=desc,
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append_space=append_space,
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)
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@contextual_command_completer
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def fish_proc_completer(ctx: CommandContext):
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"""Populate completions using fish shell and remove bash-completer"""
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if not ctx.args:
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return
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line = ctx.text_before_cursor
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script_lines = [
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f"complete --no-files {ctx.command}", # switch off basic file completions for the executable
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f"complete -C '{line}'",
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]
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args = ["fish", "-c", "; ".join(script_lines)]
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env = XSH.env.detype()
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try:
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output = sp.check_output(args, env=env, stderr=sp.DEVNULL).decode()
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except Exception as ex:
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print(f"Failed to get fish-completions: {ex}")
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return
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if output:
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lines = output.strip().splitlines(keepends=False)
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# if there is a single completion candidate then maybe it is over
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append_space = len(lines) == 1
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for line in lines:
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comp = create_rich_completion(line, append_space)
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yield comp
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completer.add_one_completer("fish", fish_proc_completer, "<bash")
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