- Starts the build server when the build starts.
- Writes tty filename to env variable.
- Tells the build server about the current build so it does not exit
until autoninja does, even if idle.
- Cancels pending tasks on Ctrl+c.
Change-Id: I86bb9852bd0975f381b049b9ff21c38eef7cef9d
Bug: 370589852
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/tools/depot_tools/+/5917985
Reviewed-by: Junji Watanabe <jwata@google.com>
Reviewed-by: Josip Sokcevic <sokcevic@chromium.org>
Reviewed-by: Fumitoshi Ukai <ukai@google.com>
Auto-Submit: Mohamed Heikal <mheikal@chromium.org>
Commit-Queue: Mohamed Heikal <mheikal@chromium.org>