source: UsbWattMeter/trunk/csp/tools/cmp_update.js@ 165

var fs = WScript.CreateObject("Scripting.FileSystemObject");

function Compare(a, b)
{
        var stream = WScript.CreateObject('ADODB.Stream');
        //stream.Type=1;//1=binary,2=text
        stream.type = 2;        //adTypeText
        stream.charset = "ascii";

        stream.Open();
        stream.LoadFromFile(fs.GetAbsolutePathName(a));
        //var fa = stream.Read(-1);//-1:read all , -2 : read line
        var fa = stream.ReadText();
        stream.Close();

        stream.Open();
        stream.LoadFromFile(fs.GetAbsolutePathName(b));
        //var fb = stream.Read(-1);
        var fb = stream.ReadText();
        stream.Close();

        if (fa.length != fb.length)
                return false;

        for (var i = 0; i < fa.length; i++) {
                if(fa.charCodeAt(i) != fb.charCodeAt(i))
                        return false;
        }

        return true;
}

args = WScript.Arguments;

if(args.length >= 2)
{
        var src_file = args(0);
        var dst_file = args(1);

        if(fs.FileExists(src_file))
        {
                if(fs.FileExists(dst_file))
                {
                        var src = fs.GetFile(src_file);
                        var dst = fs.GetFile(dst_file);

                        if(!Compare(src, dst))
                        {
                                fs.CopyFile(src_file, dst_file, true);

                                WScript.StdOut.Write(dst_file);
                                WScript.StdOut.WriteLine("‚ðƒRƒs[‚µ‚Ü‚µ‚½B");
                        }
                }
                else
                {
                        fs.CopyFile(src_file, dst_file);

                        WScript.StdOut.Write(dst_file);
                        WScript.StdOut.WriteLine("‚ðƒRƒs[‚µ‚Ü‚µ‚½B");
                }
        }
        else
        {
                if(fs.FileExists(dst_file))
                {
                        var dst = fs.GetFile(dst_file);
                        
                        fs.DeleteFile(dst_file);

                        WScript.StdOut.Write(dst_file);
                        WScript.StdOut.WriteLine("‚ðíœ‚µ‚Ü‚µ‚½B");
                }
                else
                {
                        WScript.StdOut.WriteLine("Žw’肳‚ꂽƒtƒ@ƒCƒ‹‚ª‚ ‚è‚Ü‚¹‚ñB");
                        WScript.StdOut.WriteLine(src_file);
                        WScript.StdOut.WriteLine(dst_file);
                }
        }
}