#!/bin/bash

. ${0%/*}/common

diffopts=
change=
while [ $# -gt 0 ]; do
  case "$1" in
    -c) change="$2"; shift;;
    -d[blnsw]|-f|-t|-s[abdelr]) diffopts="$diffopts $1";;
    -dc)
      diffopts="$diffopts $1";
      if [ -n "$2" -a -z "${2//[0-9]/}" ]; then
        diffopts="$diffopts $2"
        shift
      fi
    ;;
    -m)
      diffopts="$diffopts $1 $2"
      shift
    ;;
    *) break;;
  esac
  shift
done

if [ -z "$change" ]; then
  change="${1:-default}"; shift
fi

files=$(p4 $p4opts opened -c "$change" ${1+"$@"} | sed 's/#.*//')
[ -n "$files" ] && p4 $p4opts diff $diffopts $files