#!/bin/bash

# Enable programmable completion features (you don't need to enable
# this, if it's already enabled in /etc/bash.bashrc and /etc/profile
# sources /etc/bash.bashrc).
if ! shopt -oq posix; then
  if [ -f /usr/share/bash-completion/bash_completion ]; then
    . /usr/share/bash-completion/bash_completion
  elif [ -f /etc/bash_completion ]; then
    . /etc/bash_completion
  fi
fi

[ -d ~/.bash/completion ] && for file in ~/.bash/completion/*; do
  [ -f "$file" ] && source "$file"
done
unset file

# autocomplete for ssh - user@host
# info: http://www.commandlinefu.com/commands/view/2759/ssh-autocomplete
complete -W "$(echo `cat ~/.bash_history | egrep '^ssh ' | sort | uniq | sed 's/^ssh //'`;)" ssh

# add tab completion for SSH hostnames based on ~/.ssh/config, ignoring wildcards
[ -e "~/.ssh/config" ] && complete -o "default" -o "nospace" -W "$(grep "^Host" ~/.ssh/config | grep -v "[?*]" | cut -d " " -f2- | tr ' ' '\n')" scp sftp ssh;

# Add tab completion for openvpn configs based on ~/.openvpn/config, ignoring wildcards
[ -e "~/.openvpn/config/" ] && complete -o "default" -o "nospace" -W "$(find ~/.openvpn/config/ -name "*.ovpn" )" openvpn

# try to use tab auto-completion for Grunt

# Search the current directory and all parent directories for a gruntfile.
_grunt_gruntfile()
{
  local curpath="$PWD"
  while [[ "$curpath" ]]; do
    for gruntfile in "$curpath/"{G,g}runtfile.{js,coffee}; do
      if [[ -e "$gruntfile" ]]; then
        echo "$gruntfile"
        return
      fi
    done
    curpath="${curpath%/*}"
  done
  return 1
}

# Enable bash autocompletion.
_grunt_completions()
{
  # The currently-being-completed word.
  local cur="${COMP_WORDS[COMP_CWORD]}"
  # The current gruntfile, if it exists.
  local gruntfile="$(_grunt_gruntfile)"
  # The current grunt version, available tasks, options, etc.
  local gruntinfo="$(grunt --version --verbose 2>/dev/null)"
  # Options and tasks.
  local opts="$(echo "$gruntinfo" | awk '/Available options: / {$1=$2=""; print $0}')"
  local compls="$(echo "$gruntinfo" | awk '/Available tasks: / {$1=$2=""; print $0}')"
  # Only add -- or - options if the user has started typing -
  [[ "$cur" == -* ]] && compls="$compls $opts"
  # Tell complete what stuff to show.
  COMPREPLY=($(compgen -W "$compls" -- "$cur"))
}

[ -x /usr/bin/grunt ] && complete -o default -F _grunt_completions grunt