gz or other format support

[oxygen77]

We can find from some sources Grib2 files that are compressed (gz files mostly), looks to me has it is defeating the purpose of having embended compression inside grib format at data level with V2 but it is seen.

Would it be possible to add support for this ?

Currently I do all read externally except the seekgb. I can of course do the decompression before but it would use probably a temp file which is not convinient on mobile or devices with small footprint.

[edwardhartnett]

This sounds like a good idea. Unfortunately it will not make it into the next, 2.0.0 release. Can you contribute a solution?