/// <summary>
/// Recompress a package, that is try to increase the compression on an existing package
/// </summary>
/// <param name="fromPath">path the original package file</param>
/// <param name="toPath">path to the new package file</param>
/// <param name="updateToConsole">should a summary be writen to the console</param>
public static void RecompressPackage(string fromPath, string toPath, bool updateToConsole)
{
List <MemoryStream> streams = new List <MemoryStream>();
long originalSize = new FileInfo(fromPath).Length;
try
{
using (ZipFile fromFile = new ZipFile(fromPath))
{
using (ZipFile toFile = new ZipFile())
{
toFile.CompressionLevel = Ionic.Zlib.CompressionLevel.BestCompression;
ConsoleProgressBar bar = new ConsoleProgressBar();
bool showProgress = false;
if (updateToConsole)
{
#region Setup Progress Bar
if (RC.CanManipulateBuffer && (int)RC.Verbosity >= (int)ConsoleVerbosity.Normal)
{
RC.WriteLine(ConsoleThemeColor.TitleText, "");
showProgress = true;
bar.Location = new Point(0, RC.CursorTop - 1);
bar.Value = 0;
bar.Maximum = fromFile.Entries.Count;
bar.Width = RC.BufferWidth - 3;
bar.TextFormat = ConsoleProgressBarTextFormat.Percent;
bar.BarDimBackColor = RC.Theme[ConsoleThemeColor.AppBackground];
bar.BarDimForeColor = RC.Theme[ConsoleThemeColor.PanelBackground];
bar.BarLitBackColor = RC.Theme[ConsoleThemeColor.TitleText];
bar.BarLitForeColor = RC.Theme[ConsoleThemeColor.AppBackground];
bar.BarDimShade = ConsoleShade.Clear;
bar.BarLitShade = ConsoleShade.Dim;
bar.BackColor = RC.Theme[ConsoleThemeColor.AppBackground];
bar.ForeColor = RC.Theme[ConsoleThemeColor.TitleText];
bar.Render();
}
#endregion
}
#region Copy Entries
foreach (ZipEntry entry in fromFile.Entries)
{
string path = entry.FileName.Substring(0, entry.FileName.LastIndexOf("/") + 1);
if (path.EndsWith("/"))
{
path = path.Substring(0, path.Length - 1);
}
string fileName = entry.FileName.Substring(entry.FileName.LastIndexOf("/") + 1);
if (fileName.Trim().Length > 0)
{
MemoryStream stream = new MemoryStream((int)entry.UncompressedSize);
streams.Add(stream);
{
entry.Extract(stream);
stream.Position = 0;
ZipEntry newEntry = toFile.AddEntry(entry.FileName, stream);
long size = newEntry.CompressedSize;
if (updateToConsole && showProgress)
{
bar.Value++;
bar.Render();
}
}
}
}
#endregion
toFile.Save(toPath);
}
}
if (updateToConsole)
{
#region Write the summary to the console
if (RC.CanManipulateBuffer && (int)RC.Verbosity >= (int)ConsoleVerbosity.Normal)
{
RC.WriteLine("");
}
if (File.Exists(toPath))
{
long compFileSize = 0;
compFileSize = new FileInfo(toPath).Length;
ConsoleThemeColor resultColour = ConsoleThemeColor.Text;
if (compFileSize <= (originalSize / 4) * 3)
{
resultColour = ConsoleThemeColor.TextGood;
}
else if (compFileSize < originalSize)
{
resultColour = ConsoleThemeColor.SubTextNutral;
}
else
{
resultColour = ConsoleThemeColor.TextBad;
}
CmdHelper.WriteInfoToConsole(ConsoleVerbosity.Verbose, Rpx.Strings.Recompressor_Inital, CmdHelper.GetMemStringFromBytes(originalSize, true), RC.Theme[ConsoleThemeColor.Text]);
CmdHelper.WriteInfoToConsole(ConsoleVerbosity.Verbose, Rpx.Strings.Recompressor_Recompressed, CmdHelper.GetMemStringFromBytes(compFileSize, true), RC.Theme[resultColour]);
CmdHelper.WriteInfoToConsole(ConsoleVerbosity.Verbose, Rpx.Strings.Recompressor_Compression, (100 - (((double)compFileSize / (double)originalSize) * 100.0)).ToString("N2") + "% ", RC.Theme[ConsoleThemeColor.SubTextGood]);
}
else
{
CmdHelper.WriteInfoToConsole(Rpx.Strings.Recompressor_Compression, Rpx.Strings.Recompressor_Invalid, RC.Theme[ConsoleThemeColor.TextBad]);
}
#endregion
}
}
finally
{
foreach (MemoryStream stream in streams)
{
stream.Dispose();
}
}
}
