Re: [RFH] zlib gurus out there?

On Tue, 7 Mar 2006, Junio C Hamano wrote:

quoted

No, I don't think that's good. You're only doing a partial deflate, you 
can't ask for a Z_FULL_FLUSH. That only works if you give it the whole 
buffer, and you don't.

Actually, I misread what you were trying to do, and thought this was the 
inflate phase, not the deflate. Now that I understand what you want, 

So, in short there is no way to create:

    hdr part deflated.
    flush.
    data part deflated independently.

and have the current sha1_read_file() not to notice that flush,

Actually, try the patch you already tried, except you'll need to add a 

	deflateEnd(&stream);
	deflateInit(&stream, Z_BEST_COMPRESSION);
	.. set up output parameters again ..

and you need to change the initial 

	size = deflateBound(&stream, len+hdrlen);

to

	size = deflateBound(&stream, len) + deflateBound(&stream, hdrlen);

and then you might be ok.

That said, I'm not sure I agree with what you're trying to do. 

		Linus