tree 249e1ae707455853ef90d5bc030d47a69f129abe
parent 99f33f5a67344aef8ded17528051f22c35232847
author Rob Mohr <mohrr@google.com> 1619622718 -0700
committer CQ Bot Account <pigweed-scoped@luci-project-accounts.iam.gserviceaccount.com> 1619633458 +0000

pw_env_setup: Don't clear out args.gn

pwrev/33125 causes args.gn to be cleared out when running bootstrap.
Update it to only set dir_pigweed when the build directory has not yet
been created.

Change-Id: Ib6f34005c1093771d126bda9bef48196b2f27a0d
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/42800
Reviewed-by: Paul Mathieu <paulmathieu@google.com>
Reviewed-by: Wyatt Hepler <hepler@google.com>
Commit-Queue: Rob Mohr <mohrr@google.com>