tree 0838608e77500ed0e38fed89b3e589e1171c4671
parent 1a0596d8eac8ba5a46cb01fe5ed0babb09b3728f
author Corentin Wallez <cwallez@chromium.org> 1535357428 +0200
committer Corentin Wallez <corentin@wallez.net> 1536667596 -0400

PRESUBMIT.py: Add formatting checks.

GN files are checked using the canned presubmit check but we cannot do
the same for C/C++ files: the canned check uses git cl format which can
only use clang-format 5.0 and requires formatting of all the source
code.

Instead we write our own clang-format check, reusing the script that
checks formatting on Travis. To have a recent version of clang-format we
import one from a helper repo.

This also fix a formatting error in .gn and adds licenses to the
clang-format linting scripts.

Change-Id: I4d8208472a8a6bd32ae3ef41c3145abf270a4c37