[6.0] option to exclude paths from get stories and the watcher

[dannyhw]

Is your feature request related to a problem? Please describe.

It can be slow in large repos to run the get stories or watcher command and having an exclude option could be useful for avoiding that.

Describe the solution you'd like

Something like this would be useful and wouldn't break compatibility with the config file used in other frameworks

reactNativeOptions:{
  excludePaths: []
} 

Are you able to assist bring the feature to reality?
Yes

[dannyhw]

Chokidar has the ignored option, see here

ignored (anymatch-compatible definition) Defines files/paths to be ignored. The whole relative or absolute path is tested, not just filename. If a function with two arguments is provided, it gets called twice per path - once with a single argument (the path), second time with two arguments (the path and the fs.Stats object of that path).

[dannyhw]

glob has the ignore option also, see here

ignore Add a pattern or an array of glob patterns to exclude matches. Note: ignore patterns are always in dot:true mode, regardless of any other settings.