Lerna v4 uses named imports

After upgrading my project to use Lerna v4.0.0, I can no longer run commitlint.

Expected Behavior

Commit checks should run as usual when using Lerna v4.0.0

Current Behavior

Commitlint blows up when running the commit hooks. The following error occurs in @commitlint\config-lerna-scopes\index.js:47:20 - “TypeError: Project is not a constructor”.

Affected packages

• config-lerna-scopes

Possible Solution

Add another check for lerna version in the getPackages function:

const lernaVersion = getLernaVersion(cwd);
if (semver.lt(lernaVersion, '3.0.0')) {
	const Repository = importFrom(cwd, 'lerna/lib/Repository');
	const PackageUtilities = importFrom(cwd, 'lerna/lib/PackageUtilities');

	const repository = new Repository(cwd);
	return PackageUtilities.getPackages({
		packageConfigs: repository.packageConfigs,
		rootPath: cwd,
	});
}

// New check for less than v4.0.0
if (semver.lt(lernaVersion, '4.0.0')) {
	const Project = importFrom(cwd, '@lerna/project');
	const project = new Project(cwd);
	return project.getPackages();
}

const { getPackages } = importFrom(cwd, '@lerna/project');
return getPackages();

Steps to Reproduce (for bugs)

1. First step - upgrade solution to use Lerna v4.0.0
2. Second step - run pre-commit checks

Context

This issue prevents me from running pre-commit checks, so I can only commit code by skipping the checks with the --no-verify flag.

Your Environment

Executable	Version
commitlint --version	@commitlint/cli@12.0.0
git --version	git version 2.29.2.windows.2
node --version	v14.15.1

[escapedcat]

Thanks, lerna v4 just came out and we haven’t added support yet.

[johngnapp]

Works like a dream, great work everyone! 👍