tree 03f4e0e066be86c3d0462888a22ab0cf228ebd33
parent 6f8c0328ee29c76e3566a216f2f0cf2992daa6ed
author David 'Digit' Turner <digit@google.com> 1780417516 +0200
committer gn-scoped@luci-project-accounts.iam.gserviceaccount.com <gn-scoped@luci-project-accounts.iam.gserviceaccount.com> 1780681862 -0700

Introduce --format-width option (and format_width .gn variable).

The change in [1] considerably changed the output
of `gn format` which makes a new version of GN unrollable
to the Fuchsia tree (as this breaks many shac tests).

Since fixing all build files in Fuchsia is going to take
too long, this introduces a new .gn variable named 'format_width'
and associated command-line flag --format-width to override
the default to a new value.

By setting `format_width` to 120, the changes to the Fuchsia
build files are minimized, making this roll easier to do.

[1]: https://gn-review.googlesource.com/c/gn/+/22000

Change-Id: I089b7c82bb2e5de96b46b69a54c37255e53bc480
Reviewed-on: https://gn-review.googlesource.com/c/gn/+/23020
Commit-Queue: David Turner <digit@google.com>
Reviewed-by: Andrew Grieve <agrieve@google.com>