Feature request: Skip npm install

[tapz]

Describe your idea/feature/enhancement

As we have our own esbuild SAM build shoud not run npm install. Also, npm install does not seem to work with a monorepo. It tries to fetch the files from npm registry and thus requires .npmrc in all nested stacks. So, please add a flag to skip npm install. Would also be nice to be able to specify for some nested stacks that no build is needed as they are run in Docker containers.

Proposal

Additional Details

[roger-zhangg]

Hi tapz, thanks for reaching out, do you mind explain the issue you have a bit more?

From what I perceive, if want to use esbuild in sam build, you can refer to this doc for using esbuild for sam build: https://docs.aws.amazon.com/serverless-application-model/latest/developerguide/serverless-sam-cli-using-build-typescript.html

And if esbuild is handling all the build, you can even skip the sam build and directly use the built assets for deploy or sync command.

Please let me know,
Thanks

[tapz]

I first use custom pre build scripts, which use esbuild. The in the SAM templates I use makesfiles to copy lambda source files. So no need for SAM build to install dependencies when build is already done and files copied.