is a package for creating beautiful command line interfaces in a composable way with as little code as necessary. It's the " ommand ine nterface reation it". It's highly configurable but comes with sensible defaults out of the box. Click Python C L I C K Adding tab is a nice touch to any CLI program. shell completion From version ≥ 8.0.0 Click supports shell completion, but to enable it the user still has to perform some manual steps (see ). docs is a small Python library that is used to quickly and easily add tab shell completion support for (version 4.4 and up), , and , for Click CLI programs. auto-click-auto Bash Zsh Fish Usage Install with: auto-click-auto pip install auto-click-auto There are two functions that makes available: (general use) and (to be used as a decorator). auto-click-auto enable_click_shell_completion enable_click_shell_completion_option Here are some typical ways to enable autocompletion with : auto-click-auto 1) Check on every run of the CLI program if autocompletion is configured and enable it in case it is not This way you can seamlessly enable shell autocompletion without the user having to run any extra commands. Example: import click

from auto_click_auto import enable_click_shell_completion
from auto_click_auto.constants import ShellType


@click.command()
@click.option('--count', default=1, help='Number of greetings.')
@click.option('--name', prompt='Your name', help='The person to greet.')
def hello(count, name):
    """Simple program that greets NAME for a total of COUNT times."""
    for x in range(count):
        click.echo(f"Hello {name}!")
    
    enable_click_shell_completion(
        program_name="example-1", shells={ShellType.BASH, ShellType.FISH},
    ) or 2) Make shell completion a Click command option Example: import click

from auto_click_auto import enable_click_shell_completion_option


@click.command()
@enable_click_shell_completion_option(program_name="example-2")
@click.option('--count', default=1, help='Number of greetings.')
@click.option('--name', prompt='Your name', help='The person to greet.')
def hello(count, name):
    """Simple program that greets NAME for a total of COUNT times."""
    for x in range(count):
        click.echo(f"Hello {name}!") or 3) Make shell completion a command (or subcommand of a group) This implementation option might be useful if you already have a “configuration” command in your CLI program. Example: import click

from auto_click_auto import enable_click_shell_completion
from auto_click_auto.constants import ShellType


@click.group()
def cli():
    """Simple CLI program."""
    pass

@cli.command()
@click.option('--count', default=1, help='Number of greetings.')
@click.option('--name', prompt='Your name', help='The person to greet.')
def hello(count, name):
    """Simple command that greets NAME for a total of COUNT times."""
    for x in range(count):
        click.echo(f"Hello {name}!")


@cli.group()
def config():
    """Program configuration."""
    pass


@config.command()
def shell_completion():
    """Activate shell completion for this program."""
    enable_click_shell_completion(
        program_name="example-3",
        shells={ShellType.BASH, ShellType.FISH, ShellType.ZSH},
        verbose=True,
    ) To run the examples, fork the project’s repository and follow the instructions at . https://github.com/KAUTH/auto-click-auto/tree/main/examples Why ? auto-click-auto In the search for other tools that enable shell completion for Click, we come across a lot of example code and gists, or unmaintained repos and packages with extra dependencies. This introduces complexity to adapting the code and adding it to our use case quickly. For more information read . here If you have any problems with please open an issue . auto-click-auto here Thanks for reading, leave a like ❤️ if you found the article interesting and of course your feedback 📝! Originally published on July 25, 2023. here

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Using Auto-Click-Auto to Enhance Click CLI Programs with Shell Completion

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Kostas Papadopoulos

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Using Auto-Click-Auto to Enhance Click CLI Programs with Shell Completion

Too Long; Didn't Read

Kostas Papadopoulos

About Author

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