[fedora-java] db merging script

[Thomas Fitzsimmons]

On Mon, 2005-04-04 at 21:36 -0400, Andrew Overholt wrote:
> * Andrew Overholt <overholt at redhat.com> [2005-03-29 16:52]:
> [...]
> > > (cd $DB.d; ls . | xargs gcj-dbtool -m $DB $DB)
> [...]
> 
> I'm thinking this should be:
> 
> (cd $DB.d; ls . | xargs gcj-dbtool -m $DB)
> 
> What's the purpose of the extraneous $DB?  I don't think we want it because
> we actually want the entire db recreated every time.  We don't want entries
> that are not in sub-dbs in $DB.d to be in the resultant db.  Does that make
> sense?
> 

The -m option cases the destination database to be overwritten.  If you
want to maintain its contents you need to specify it as a source
database.  From "gcj-dbtool --help" output:

    gcj-dbtool -m dest.gcjdb [source.gcjdb]...
             - Merge gcj map databases into dest
               Replaces dest
               To add to dest, include dest in the list of sources

But as I understand it, rebuild-gcj-db is supposed to rebuild
classmap.db from scratch.  If that's the intended behaviour (and is safe
-- aph?) then

(cd $DB.d; ls . | xargs gcj-dbtool -m $DB)

is correct.

Tom