lerna-current-dir-updated

lerna-current-dir-updated provides a simple way to check whether the current working directory is part of a lerna package that has been updated.

This can be especially useful when you wish to naively determine whether to run tests from a given directory in CI environments.

Installation

$ npm install --global lerna-current-dir-updated

Note: lerna must already be in your path (installed globally) in order for this package to work.

Usage

lerna-current-dir-updated and lerna-current-dir-not-updated accept the same flags as the lerna list command.

lerna-current-dir-updated

Exits non-zero if the current directory has not been updated.

$ cd packages/my-package-name
$ lerna-current-dir-updated --since develop && npm test
my-package-name is not updated.

lerna-current-dir-not-updated

Exits non-zero if the current directory has been updated.

This command can be chained with another using an OR operator in order to avoid exiting non-zero in CI environments. In the below example tests are only run if the package has been updated, and nothing will show as a failure in CI unless npm test fails to pass.

$ cd packages/my-package-name
$ lerna-current-dir-not-updated --since master || npm test
my-package-name is updated.
... # npm test output