NPM dependency copier
dep-copy <src_dir> <dst_dir>.
Recursively copy only production parts of node_modules
This tool recursively walks productive dependencies of a module found in
src_dir and places them flatly under node_modules under dst_dir.
Node's module resolution mechanics is used to find the dependency, so if it's in a parent folder somewhere, it's still discovered.
Known limitations
Package versions are ignored, and each package is discovered only once. This means that if you have the same package somewhere in dependencies multiple times with different versions, only the first found will be copied.