Compressed Sources...need to be fixed

Hi,

In 3.9 (maybe even 3.8?) there is a very cool small hack by Dan  
Ingalls: Source Compression.

|
| Description:
| CompressedSourceStream writes files as a series of GZipped segments  
that can be written and read sequentially like
| regular source files, and yet remain compressed 4x on the disk.  
Full sources for Squeak 3.6 fit in 3.5MB.
|
| Smalltalk compressSources will write a copy of the sources file in  
this format. Thereafter openSources:forImage:
| will look first for such a compressed copy, and open it if found.
|

Now with everybody complaining about the size of Squeak, I would like  
to do two things with 3.9:

        1) A new sources file. Everything (almost) has been overridden in  
the changes file, it just makes
            no sense anymore.

        2) Compressing that source file. Dan's code will get us a factor of  
4, so we will have 4-5 MB
             instead of 16. Optionaly, people can always just use the  
uncompressed sources if they don't like it.

The problem now is that the m17n stuff broke the  
CompressedSourceStream... I guess it's something trivial
(like a wrong encoder or something)... but I have no time for  
checking it.

Anyone care to see if it's fixable?

We then will have (estimate) the following size for 3.9:
        .changes:   empty
         .image        14MB
         .stc               ca. 5 MB    (compressed sources)

(compared to 8.9 + 12.4 + 13.9 for 3.8).

Attached is a changeset for writing a new .sources for enabeling to  
test the compression for real on the
new .sources file.




       Marcus