Pipelines: cache custom node_modules folder

[Nurbol Alpysbayev]

Do I understand correctly that pre-defined `node` cache only works when node_modules and package.json are located in the root directory of a project? Then how do I configure bitbucket-pipelines.yml to make cache work with node_modules folder located in subfolder (./public/node_modules/)? 

[Nurbol Alpysbayev · Accepted solution]

Managed to solve it

with:

...
- step
  caches: 
    - node-custom
  script:
    - if [ ! -d "node_modules" ]; then npm install; fi
...

definitions:
  caches:
    node-custom: public/node_modules