46 lines
1.2 KiB
Python
46 lines
1.2 KiB
Python
import os
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import click
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@click.group()
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def cli():
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pass
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def get_env_vars(ctx, args, incomplete):
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# Completions returned as strings do not have a description displayed.
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for key in os.environ.keys():
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if incomplete in key:
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yield key
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@cli.command(help="A command to print environment variables")
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@click.argument("envvar", type=click.STRING, autocompletion=get_env_vars)
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def cmd1(envvar):
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click.echo("Environment variable: {}".format(envvar))
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click.echo("Value: {}".format(os.environ[envvar]))
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@click.group(help="A group that holds a subcommand")
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def group():
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pass
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def list_users(ctx, args, incomplete):
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# You can generate completions with descriptions by returning
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# tuples in the form (completion, description).
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users = [("bob", "butcher"), ("alice", "baker"), ("jerry", "candlestick maker")]
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# Ths will allow completion matches based on matches within the
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# description string too!
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return [user for user in users if incomplete in user[0] or incomplete in user[1]]
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@group.command(help="Choose a user")
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@click.argument("user", type=click.STRING, autocompletion=list_users)
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def subcmd(user):
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click.echo("Chosen user is {}".format(user))
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cli.add_command(group)
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