unixorn/fzf-zsh-plugin

#!/usr/bin/env bash
#
# Original source: https://bluz71.github.io/2018/11/26/fuzzy-finding-in-bash-with-fzf.html

set -o pipefail
if [[ -n "$DEBUG" ]]; then
  set -x
fi

fail() {
  printf '%s\n' "$1" >&2  ## Send message to stderr. Exclude >&2 if you don't want it that way.
  exit "${2-1}"  ## Return a code specified by $2 or 1 by default.
}

has() {
  which "$@" > /dev/null 2>&1
}

if ! has brew; then
  fail "Can't find brew in your PATH"
fi

# Update (one or multiple) selected application(s)
brew-update-plugin() {
  upd=$(brew leaves | fzf -m --preview 'brew info {}')

  if [[ $upd ]]; then
    # shellcheck disable=SC2086
    for prog in $upd
    do
      brew upgrade $prog
    done
  fi
}

# shellcheck disable=SC2068
brew-update-plugin $@