Possibility to run lerna command in changed packages only

Is it possible to somehow pass the result of lerna changed to lerna run --scope or lerna exec -- --scope ? It seems like lerna already does all the git magic necessary to get the packages that changed, but how can you easily use this result to run commands (for example I want to deploy to netlify instead of publish to npm or only run tests in my ci in changed packages) without getting the previous git tag manually yourself (if you are on master branch) to use with the since flag or comparing to master using since if you are on a feature branch?

Expected Behavior

Allow multiple packages to be passed to scope filter or allow lerna changed to be used in conjunction with a flag like since for example.

Current Behavior

It does not, see above.

Possible Solution

See expected behavior.

[csi-lk]

Came across this when searching for the same thing, method seems to be to use lerna run with --since flag

eg

lerna run test --since master

you don’t need to run lerna changed

[evocateur]

It’s right there in the docs:

If no ref is passed, it defaults to the most-recent tag.

When in master, npx lerna run test --since will do what everyone in this thread seems to want.