When chromium developers use autoninja for their build,
$ autoninja -C out/Release chrome
autoninja uploads ninja‘s build log for Google employees but we don’t collect logs from external contributors.
We use this page to decide whether an autoninja user is a Googler or not. Only people with access to Google's internal network can see ‘Success’.
Before uploading logs, autoninja shows a message 10 times to warn users that we will collect build logs.
autoninja users can also opt in or out by using the following commands:
The collected build log contains
See manual of ninja for more details.
In addition to ninja's build log, we send the following data for further analysis:
We don't collect personally identifiable information (e.g. username, ip address).
We (goma team) collect build logs to find slow build tasks that harm developer‘s productivity. Based on collected stats, we find the place/build tasks where we need to focus on. Also we use collected stats to track chrome build performance on developer’s machine. We‘ll use this stats to measure how much we can/can’t improve build performance on developer's machine.