RFC: arbitrary transformation for renderables

[Pierre Tardy]

Hi Roman,

There is already a renderer function which is similar simplification of the
renderable pattern.
You can do

renderer(lambda _: datetime.date.today().isoformat()
renderer(lambda b: os.path.relpath(p.getProperty('buildir'))

The latter is a little bit more chars than your solution, but probably more
easy to follow.
http://docs.buildbot.net/latest/manual/cfg-properties.html#renderer

Regards
Pierre

Le mer. 30 sept. 2015 à 21:16, Роман Донченко <dpb at corrigendum.ru> a écrit :

> Hello,
>
> I wrote a class to simplify transforming renderables with arbitrary
> functions. I think it's useful enough to include in Buildbot itself. What
> do you think?
>
> class Transform(object):
>      implements(IRenderable)
>
>      def __init__(self, function, *args, **kwargs):
>          self.function = function
>          self.args = args
>          self.kwargs = kwargs
>
>      @defer.inlineCallbacks
>      def getRenderingFor(self, iprops):
>          rfunction = yield iprops.render(self.function)
>          rargs = yield iprops.render(self.args)
>          rkwargs = yield iprops.render(self.kwargs)
>          defer.returnValue(rfunction(*rargs, **rkwargs))
>
> Example uses:
>
> Transform(lambda: datetime.date.today().isoformat()) # get build date as a
> renderable
> Transform(os.path.realpath, Property('builddir'))
> Transform(os.path.relpath, my_file, start=Property('builddir'))
>
> Roman.
> _______________________________________________
> devel mailing list
> devel at buildbot.net
> https://lists.buildbot.net/mailman/listinfo/devel
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.buildbot.net/pipermail/devel/attachments/20151001/2196983e/attachment.html>