# utility.sh
# Miscellaneous Utility Functions

function unkey-host ()
{
   [ ${#} -ne 1 ] && return 1
   sed -i -e "/$1/d" $HOME/.ssh/known_hosts
}

function mkcd ()
{
   if [[ -d "$1" ]] ; then
      cd "$1"
      return
   fi

   mkdir -p "$1" && cd "$1"
}

function extract ()
{
   if [[ ! -f "$1" ]] ; then
      echo "The file ("$1") does not exist!"
      return
   fi

   local filename

   filename=$(echo "$1" | tr '[:upper:]' '[:lower:]')

   case "$filename" in
      *.tar)
         tar xf "${1}"
      ;;
      *.tar.gz|*.tgz|*.tar.z)
         tar zxf "${1}"
      ;;
      *.tar.bz2|*.tbz2)
         tar jxf "${1}"
      ;;
      *.zip|*.jar)
         unzip -qo "${1}"
      ;;
      *.gz|*.z)
         gzip -dc "${1}" > $(basename "${1%.*}")
      ;;
      *.bz2)
         bzip2 -dc "${1}" > $(basename "${1%.*}")
      ;;
      *.rar)
         unrar x -idq "${1}"
      ;;
      *.lha|*.lzh)
         lha xqf "${1}"
      ;;
      *.a|*.deb)
         ar x "${1}"
      ;;
      *.tar.lzma)
         lzma -dc "${1}" | tar xf
      ;;
      *.lzma)
         lzma -dc "${1}" > $(basename "${1%.*}")
      ;;
      *)
         echo "Unable to extract '"$1"'"
         return 1
      ;;
   esac

   return $?
}

# vim: set ft=sh ts=3 sw=3 et: