Docs question: how should I specify multiple exclusions on the commandline?

[midgleyc]

Suppose I'm calling c8 on the commandline:

npx c8 --all --exclude <something> npm run test

and I want to exclude multiple folders (e.g. upgrade, test). Based on the documentation

--exclude, -x                    a list of specific files and directories that
                                   should be excluded from coverage (glob
                                   patterns are supported)
  [default: ["coverage/**","packages/*/test{,s}/**","**/*.d.ts","test{,s}/**","t
  est{,-*}.{js,cjs,mjs,ts}","**/*{.,-}test.{js,cjs,mjs,ts}","**/__tests__/**","*
  */{ava,nyc}.config.{js,cjs,mjs}","**/jest.config.{js,cjs,mjs,ts}","**/{karma,r
     ollup,webpack}.config.js","**/{babel.config,.eslintrc,.mocharc}.{js,cjs}"]]

I thought I had to pass this in as a Javascript array

npx c8 --all --exclude '["upgrade/**","test/**"]' npm run test

but this doesn't work. What works is passing multiple exclude flags:

npx c8 --all --exclude "upgrade/**" --exclude "test/**" npm run test

and it looks like I can also exclude folders by just passing the folder directly:

npx c8 --all --exclude "upgrade" --exclude "test" npm run test

---

Is the multiple flags method the intended way of passing exclusions, or is there a way to do it with only one flag?

Is the folder exclusion possibility intended and safe to write, or does it just work by accident? I thought it might be unintended because the default exclusion list includes constructs like "coverage/**" and "test{,s}/**" and it seems they could be simplified down to "coverage" and "test{,s}" if directory exclusion was supposed to work.