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Generate completions #4

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juanibiapina opened this issue Mar 10, 2019 · 0 comments

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juanibiapina commented Mar 10, 2019 •

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Provide a command to generate completions for a CLI. Possible example usage:

$ sub --name awesomecli --bin bin/awesomecli --relative ".." gen-completions zsh > completions/awesomecli.zsh

Possible template for zsh (using old completions system):

if [[ ! -o interactive ]]; then
    return
fi

compctl -K _awesomecli awesomecli

_awesomecli() {
  local words completions
  read -cA words

  if [ "${#words}" -eq 2 ]; then
    completions="$(awesomecli completions)"
  else
    completions="$(awesomecli completions "${words[@]:1:-1}")"
  fi

  reply=("${(ps:\n:)completions}")
}

and bash:

_awesomecli() {
  COMPREPLY=()
  local word="${COMP_WORDS[COMP_CWORD]}"

  if [ "$COMP_CWORD" -eq 1 ]; then
    COMPREPLY=( $(compgen -W "$(awesomecli completions)" -- "$word") )
  else
    local completions="$(awesomecli completions "${COMP_WORDS[@]:1}")"
    COMPREPLY=( $(compgen -W "$completions" -- "$word") )
  fi
}

complete -F _awesomecli awesomecli

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