tree 8b11ee2bd861216d44c9a0c5d7cae5e5c7d22875
parent 9e954eae31375fc2fd7964f86a4abd301b57d7df
author Keir Mierle <keir@google.com> 1582947784 -0800
committer CQ Bot Account <commit-bot@chromium.org> 1583182145 +0000

pw_watch: Add proper debouncing; enter to build

This adds a more sophisticated debounce mechanism to the watcher, which
restarts with each incoming file change. This prevents starting builds
too early when doing rebases or pulls which trigger many file changes,
and can cause Ninja or GN to get into an inconsistent state.

If filesystem changes happen during a build, the build is marked as
"interrupted" and failed, to prevent confusing inconsistent builds.

Additionally, this change runs a build when pressing 'enter'. This is
useful in many cases where something outside of the watcher's view
changes that should trigger a rebuild; for example, when first running
pw watch.

Change-Id: Ifa6e36eeaf742f93ce451115f18691490e6085d4