[squeak-dev] Re: Splitting an existing package

Chris Cunningham cunningham.cb at gmail.com
Tue Jul 16 23:52:46 UTC 2013


So, after step 1, you also need to hunt down the various extensions - in
FileStream and other places - that is part of the Compression package, and
move them to one of the new packages.  Otherwise you innadvertantly remove
those methods.  (Currently all of these are just under *Compression - no
sub-category...)

-Chris


On Tue, Jul 16, 2013 at 2:39 PM, Frank Shearar <frank.shearar at gmail.com>wrote:

> On 16 July 2013 22:30, Frank Shearar <frank.shearar at gmail.com> wrote:
> > I would like to split the Compression package into its two constituent
> > subpackages, Compression-Archives and Compression-Streams.
> >
> > Files depends on things in Compression-Archives, and
> > Compression-Streams depends on Files. If I can split the package and
> > replace it with the two subpackages, I can untangle this cyclic
> > dependency.
> >
> > But how would I actually do this? I've tried making two packages, for
> > instance. However, the classes still remain in Compression... as you
> > can see if you try to unload the old Compression package.
>
> One possible way goes something like this:
> * Add CompressionArchives and CompressionStream packages corresponding
> to the hyphenated system categories
> * Push a new config map with the "new" packages
> * Push the empty Compression package
> * Remove the Compression package using a config map
> * Rename CompressionArchives to Compression-Archives and same for Stream
> * Push a third config map removing Compression and adding
> Compression-Archives and Compression-Stream
>
> > frank
>
>
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