Configuration of gzip compression level

[cdanger]

Hello,
is there a way to configure gzip compression level? When using true</gzip with compress goal.
Or at least allow to use the max level (lowest speed).
For instance, the linux gzip command supports 9 levels (9 being the best compression level but slowest compression method).

Thanks.

[davidB]

Today, there is no way to configure it.
The plugin use java GZIPOutputStream, if you find a way to set the compression (reliable), tell me or made a Pull Request.

[cdanger]

Yes, there is some help here:
https://weblogs.java.net/blog/2003/12/26/achieving-better-compression-deflater
In short, instead of:

GZIPOutputStream gzipout = new GZIPOutputStream(bos);

use

OutputStream gzipout = new GZIPOutputStream(bos){{def.setLevel(Deflater.BEST_COMPRESSION);}};

I have not tested it myself, but it is used by others.