Build page should show information about remaining build time

[Julian Edwards]

Build pages for in-progress builds could show some useful information about how long it expects it to carry on building, since we have that information for previous builds of the same package.

Something like:
 Last build duration: HH:MM:SS
 Estimated time left: HH:MM:SS

would be very useful to see.

[Vikram Dhillon (dhillon-v10)]

Yes indeed, that would be helpful. Currently we only see how long it took for the buildd to make the package. But one question though: would this be based upon estimated time, if so how do we estimate the time for a package?

[Julian Edwards (julian-edwards)]

You find the last build for the same package and look at its buildduration.

On the current build you then say something like:

Last build duration <tal:view/last_build/buildduration/fmt:datetime>
Estimated time left <tal:view/time_left/fmt:datetime>

where time_left is a property that does `now() - last_build`