shell-base/modules/scripting/minimize.func

#!/bin/bash

minimize () {
  # will minimize script, removing comment lines and blank lines and inline comments
  # TODO -r remove shebang, replace newlines with ; remove continuation \
  # usage: <options> "source"    (source as text or source as filename, as text MUST be quoted!)
  # options: 
  # -t  # argment will get text of source, otherwise it is the file path
  # -o filepath # output to file
  # -v # verbose, only applies when using -o.  will output to file and return (stdout).
  local out; local verbose; local text
  local min="/^[[:space:]]*#/d; /#$/d; /^$/d"
  local OPTION; local OPTARG; local OPTIND
  while getopts 'to:v' OPTION; do
    # echo $OPTION $OPTARG
    case "$OPTION" in
    
    t)
      text=true
      ;;  
    v)
      verbose=true
    ;; 
    o)
      out="$OPTARG"
      ;;    
    *)
      echo unknown option $OPTION
      ;;  
    esac
  done
  shift $((OPTIND - 1))

  if [[ $text ]]; then 
    res="$(echo "$1" | sed "$min")"
   else
    res="$(sed "$min" "$1")"
    # ; s/\(.*\)#.*/\1/"  
    # | sed -z 's/\n/;/g'  | sed 's/;$/\n/' | tr -s ' ' | sed 's/{;/{\n/g' | sed 's/;};/\n}\n/g')"
  fi  
  out=${out:-$2}
  if [[ $out ]]; then
    [[ $verbose ]] && echo "$res" | tee "$out" || echo "$res" > "$out"
   else 
    echo "$res"
  fi 
}