[Skiboot] Minor FWTS integration improvements

[Stewart Smith]

Jack Miller <jack at codezen.org> writes:
> I know Stewart's wrapping things up for 5.4.0 so I don't expect this to get
> merged any time soon, but I've written a couple of enhancements for FWTS
> integration and would appreciate any feedback.
>
> The first patch adds a simple merge script that will take two olog JSON files
> generated by the existing generate-fwts-olog script and output one that
> includes error definitions from both versions. It will detect if the pattern
> changed for a specific error and prompt the user to either duplicate that
> error definition with both patterns or define a pattern that will cover both.
>
> Right now, this script is extremely simple and takes no optional arguments.
> The only enhancement I can think of is maybe a -f flag to go non-interactive,
> but as it stands I think we're actually interested in changing definitions
> more than automating this script.
>
> The second patch is a tweak to generate-fwts-olog that uses subprocess to
> invoke `git describe` and add a 'last-tag' field to the generated JSON. This
> will make it easier to clean ancient error definitions out of merged ologs in
> the future.
>
> Again, fairly simple change, but perhaps could use a bit of polish. For
> example, if anyone cares about running the script on non-git directories,
> perhaps it could use an option / environment variable to manually set
> last-tag, but that could just be needless complication.
>
> Any suggestions welcome.

Looks good to me! Merged to master as of f2cc6ae


-- 
Stewart Smith
OPAL Architect, IBM.