Re: [cbi-dev] [jdt-core-dev] Fwd: compare artifacts to baseline version

[Stephan Herrmann <stephan@xxxxxxxxxxxxxxx>]

On 07/05/2012 03:52 PM, Igor Fedorenko wrote:
> I used jdt as an example to illustrate potential problem -- we have two
> sets of artifacts that are built from the same sources but they are most
> likely not byte-to-byte identical. Differences can be as benign as
> different jar entry timestamps, but can be more serious, like different
> jar signer certificates, different pack200 normalization, etc.
>
> So my question is, when the build cannot validate all project artifacts
> against baseline, is it okay to mix artifacts produced by the build with
> artifacts from the baseline or should we do something else?

Would it help to explicitly specify a subset/superset relation?

If o.e.jdt.core.jar has no changes
 => none of the two subset artifacts require rebuilding

If o.e.jdt.core.jar has changes but ant adapter doesn't
 => safe not to rebuild ant adapter

So, mixing an old ant adapter with a newer o.e.jdt.core.jar
looks OK from my pov but not vice versa.

my 2c.
Stephan