Provide a `completion` subcommand

[eisraeli]

Most cli binaries provide a completion subcommand.
Can we align with that approach ?

e.g.
ibmcloud completion bash
ibmcloud completion zsh

[steveclay]

@eisraeli is your thought that the current instructions for setting up auto-completion would be made into a command that configures the user's environment for this use?

Thanks

[eisraeli]

Yeah.
This is what I configured in my .zshrc, which works for me:

_bash_autocomplete() {
    local cur opts
    COMPREPLY=()
    cur="${COMP_WORDS[COMP_CWORD]}"
    opts=$( "${COMP_WORDS[@]:0:$COMP_CWORD}" --generate-bash-completion )
    COMPREPLY=( $(compgen -W "${opts}" -- "${cur}") )
    return 0
}

PROGS=("ibmcloud")
for p in "${PROGS[@]}";
do
    complete -o default -F _bash_autocomplete "$p"
done

BUT, instead, just adding source <(ibmcloud completion zsh) would have been nicer (which is the most common way i add auto-completion)