#!/bin/bash

print_usage()
{
    echo "$(basename $0) -- diff for version control (svn or git) with color output."
    echo "Usage: $(basename $0) [OPTIONS...]"
}

if [ "x${1}" = "x--help" ]; then
    print_usage
    exit 1
fi

if git diff 1> /dev/null 2>&1; then
    git diff "$@"
elif svn diff 1> /dev/null 2>&1; then
    svn diff --diff-cmd colordiff -x "-u -w -p" "$@" | less -RFX
else
    echo "Not a GIT or Subversion repository"
    exit 1
fi