this moves the actual diff algorithm into a different package and then provides hooks so it can be easily replaced with an alternate algorithm.
Change-Id: Ia0359f58878493599ea0e0fda8920f21100e16f1
Reviewed-on: https://go-review.googlesource.com/c/tools/+/190898
Run-TryBot: Ian Cottrell <iancottrell@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
We're still leaving open the possibility of changing this API,
but things have baked for a bit so I feel comfortable removing the
build tag.
Also add some documentation.
Change-Id: I3beb666b58177553fc406dc9670d569d5928fedd
Reviewed-on: https://go-review.googlesource.com/c/tools/+/189460
Run-TryBot: Michael Matloob <matloob@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
