How can I add help "command"

[ghost]

How can I add the help command, which works the same as the --help option? like docker help and docker --help

[DannyBen]

Basically, you just create the command as you normally would, and have its code call the internal bashly help functions.

There is an example for that:
https://github.com/DannyBen/bashly/tree/master/examples/help-command#readme

This is the important bit:

# src/help_command.sh
command="${args[command]}"
long_usage=yes

if [[ -z "$command" ]]; then
  # No command argument, show the global help
  help_function=cli_usage
else
  # Show the help for the requested command
  help_function="cli_${command}_usage"
fi

# Call the help function if it exists
if [[ $(type -t "$help_function") ]]; then
  "$help_function"
else
  echo "No help available for this command"
  exit 1
fi

Since this is not the first time this was asked, I wonder if there should be a simpler way to do this.

[ghost]

thanks for responding, no it's simple enough I just wasn't able to find it, thanks again for this wonderful tool.

[DannyBen]

I decided to also add a standard library function for it, so in the next release, people can simply run:

$ bashly add help

Implemented in #301