tree a2e920b76689a2fedfd21937d600c6006ac91961
parent c45cf3a6dbcc97b74fd27f837af6fd89160fac77
author Matt Stark <msta@google.com> 1776919749 +1000
committer gn-scoped@luci-project-accounts.iam.gserviceaccount.com <gn-scoped@luci-project-accounts.iam.gserviceaccount.com> 1776996559 -0700

Add --diff to run_formatter and update_reference

When --diff is provided, they output nonzero statuses when changes are
required. This makes them suitable to run in CI

Change-Id: Iceda9895beae955e13059e74739810126a6a6964
Reviewed-on: https://gn-review.googlesource.com/c/gn/+/22060
Reviewed-by: Takuto Ikuta <tikuta@google.com>
Commit-Queue: Matt Stark <msta@google.com>