This template uses npm workspace and NX for finding out what packages changed between two git branches at build time.
Repo has two lambdas (Service A and Service B) and a library (logger library) that can be add into any lambda's package.json dependency list ("dependencies": { "lib-logger": "*" }). Service B depends on the logger library.
(Note that the package.json name field is used to identify the package name in the "dependencies" map. Hence I have set the package.json name field of each package to be same as the directory of the package, as a convention to avoid confusion.)
On the release branch, I made some changes to the logger library to see how we could make the build figure out which lambdas got affected. (It should only affect Service B)
git checkout release and run ./build-scripts/print-affected.sh to print out only the changed / affected lambdas between release and main branches. Also can run the example npm run test command to see that only the affected repo's tests are run. You can run all tests by running the example npm run test:all command.
Check the build-scripts/deploy.sh for deploying a single lambda.
You need to read about:
- NPM Workspaces
nx affectedcommand