Lerna allows you to list local packages that have changed since the last release:
$ cd /path/to/node-app
$ npx lerna changed -p
lerna notice cli v3.20.2
lerna info versioning independent
lerna info Looking for changed packages since @fedecarg/[email protected]
/path/to/node-app/packages/analytics
/path/to/node-app/packages/breaking-news
/path/to/node-app/packages/footer
/path/to/node-app/packages/header
/path/to/node-app/packages/template
/path/to/node-app/packages/user-account
lerna success found 6 packages ready to publish
You can use a combination of lerna changed and lerna exec to lint and test only the packages that changed.
For example:
Lint:
$ npx lerna exec $(for package_dir in `npx lerna changed -p`; do echo -n " --scope @fedecarg/$(basename ${package_dir})"; done) -- yarn lint
Test:
$ npx lerna exec $(for package_dir in `npx lerna changed -p`; do echo -n " --scope @fedecarg/$(basename ${package_dir})"; done) -- npm test -- --no-watch --passWithNoTests
You can also use Lerna to build packages that changed in node-app and copy them to any consuming app:
Copy:
- Change directory to node-app:
$ cd /path/to/node-app
- Commit all the changed files and push to remote:
git add .
git commit -m "Commit message"
git push origin <branch>
- Set the destination path to the consuming app:
$ DESTINATION_PATH=/path/to/consuming_app/node_modules/@fedecarg
- Build and copy packages:
$ for package_dir in `npx lerna changed -p`; do \
yarn --cwd ${package_dir} build && \
rm -Rf "${DESTINATION_PATH}/$(basename ${package_dir})" && \
cp -R ${package_dir} ${DESTINATION_PATH} && \
echo "Copied ${package_dir}..."; \
done