These checks can probably be called from https://cs.chromium.org/chromium/infra/PRESUBMIT.py

but may need some library support. See http://dev.chromium.org/developers/how-tos/depottools/presubmit-scripts for (what may be outdated) docs on how that system works.

At a bare minimum it should check for local eslint settings in whatever directory it's invoked from, but it's probably a good idea to have a global default settings file.

Start out with warnings rather than failing the presubmit check.