1) Parse thirdpartylibs.xml and generate an array of third party
file paths to use in grunt tasks
2) In the lint tasks, we filter third party files from being linted
3) We add a new task to generate ignore files - currently for eslint,
but will be potentially useful for other things in the future
4) Remove .eslintignore from source control
Why have the ability to generate a .eslintignore file? For tooling
integration - by having the eslintignore file people can use other
eslint tools without having to just use grunt (e.g. editor
integrations).
Because we don't have the entire YUI rollup, we can't apply some of the
rules safely, so we ignore some rules.
At this point I am not 100% certain this configuration is robust enough,
to deal with the lack fo rollup knowledge although its a good sign that
there are no errors on our entire yui codebase.
I have spent quite a lot of time working through the current list of
eslint options and configuring them for Moodle style and I think this is
a very good basis to start us at (as well as taking some of out jshint
options out with https://www.npmjs.com/package/polyjuice ). Thanks to
Andrew Nicols, Mark Johnson and Frédéric Massart for some refinements.
With this configuration the grunt build will fail if errors are present
in the js (though you can of course tell jshint to ignore some errors,
as I have done in admin/tool/lp/amd/src/competency_rule_points.js and
defining the Y global in lib/amd/src/yui.js ).
The grunt task will not report warnings by default, but a new
--show-lint-warnings flag will help achieve that. Editor
integrations/stanadalone eslint tool will surely be a better way of
getting eslint errors rather than using the grunt task.
