Pete Bacon Darwin ead9ccd566 build(docs-infra): fail gently if a changed file is unknown (#40479)
When using `docs-watch` we try to match the changed file
to a dgeni package in order to trigger a minimal set of processors.

Previously, if the changed file could not be matched we emitted an
ugly error. Now we provide a helpeful message.

PR Close #40479
2021-01-20 16:12:15 -08:00
..