tree fd5db00c05967ebf5bedd3c949e39eaa9a2234ab
parent d0aec5864e636f9f749699fd7495d18a8d73844e
author Matt Stark <msta@google.com> 1787202561 +1000
committer gn-scoped@luci-project-accounts.iam.gserviceaccount.com <gn-scoped@luci-project-accounts.iam.gserviceaccount.com> 1787719852 -0700

Add `build/gen.py --gen ~/chromium/src=out/Default`

This allows for:
* `ninja -C out gen` to rerun `gn gen` if gn has changed.
* `ninja -C out gen.json` to calculate the build graph generated by `gn gen`

Change-Id: I9805e438abbd332d3acd9b3b54f8c4c66a6a6964
Reviewed-on: https://gn-review.googlesource.com/c/gn/+/25602
Commit-Queue: Matt Stark <msta@google.com>
Reviewed-by: Takuto Ikuta <tikuta@google.com>