contrib: add a set of scripts to run pytype in Docker
Having a simple way to run pytype for developers can massively shorten
development cycle. Using the same Docker image and scripts that we use on our
CI guarantees that the result achieved locally will be very similar to (if not
the same as) the output of our CI runners.
Things to note: the Dockerfile needs to do a little dance around user
permissions inside /home/ci-runner/ because:
- on one hand, creating new files on the host (e.g. .pyi files inside .pytype/)
should use host user's uid and gid
- on the other hand, when we run the image as uid:gid of host user, it needs to
be able to read/execute files inside the image that are owned by ci-runner
Since local user's uid might be different from ci-runner's uid, we execute this
very broad chmod command inside /home/ci-runner/, but then run the image as the
host user's uid:gid.
There might be a better way to do this.
{
// Enforcing
"eqeqeq" : true, // true: Require triple equals (===) for comparison
"forin" : true, // true: Require filtering for..in loops with obj.hasOwnProperty()
"freeze" : true, // true: prohibits overwriting prototypes of native objects such as Array, Date etc.
"nonbsp" : true, // true: Prohibit "non-breaking whitespace" characters.
"undef" : true, // true: Require all non-global variables to be declared (prevents global leaks)
// Environments
"browser" : true // Web Browser (window, document, etc)
}