Using iopipe to stream a gzipped file

[Steven Schveighoffer]

On 1/3/18 12:03 PM, Andrew wrote:

> Thanks for looking into this.
> 

So it looks like the file you have is a concatenated gzip file. If I 
gunzip the file and recompress it, it works properly.

Looking at the docs of zlib inflate [1]:

" Unlike the gunzip utility and gzread() ..., inflate() will not 
automatically decode concatenated gzip streams. inflate() will return 
Z_STREAM_END at the end of the gzip stream.  The state would need to be 
reset to continue decoding a subsequent gzip stream."

So what is happening is the inflate function is returning Z_STREAM_END, 
and I'm considering the stream done from that return code.

I'm not sure yet how to fix this. I suppose I can check if any more data 
exists, and then re-init and continue. I have to look up what a 
concatenated gzip file is. gzread isn't good for generic purposes, 
because it requires an actual file input (I want to support any input 
type, including memory data).

-Steve

[1] https://github.com/dlang/phobos/blob/master/etc/c/zlib.d#L874