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Cannot extend shared config in monorepo setup

See original GitHub issue

Tell us about your environment

ESLint Version: 5.0.1
Node Version: 10.4.1
npm Version: 6.1.0

What parser (default, Babel-ESLint, etc.) are you using? -

Please show your full configuration:

module.exports = {
  extends: '@org/eslint-config'
};

What did you do? Please include the actual source code causing the issue, as well as the command that you used to run ESLint.

Reproduction https://github.com/sqal/eslint-extends-bug-reproduction

Steps to reproduce:

After cloning, the repo run npm run bootstrap
Then go to packages/app and run npm run lint

What did you expect to happen? I expect eslint to find my config correctly

What actually happened? Please include the actual, raw output from ESLint.

> eslint src

Cannot find module '@org/eslint-config'
Referenced from: C:\dev\eslint-extends-bug\packages\app\.eslintrc.js
Error: Cannot find module '@org/eslint-config'
Referenced from: C:\dev\eslint-extends-bug\packages\app\.eslintrc.js
    at ModuleResolver.resolve (C:\dev\eslint-extends-bug\node_modules\eslint\lib\util\module-resolver.js:72:19)
    at resolve (C:\dev\eslint-extends-bug\node_modules\eslint\lib\config\config-file.js:484:28)
    at load (C:\dev\eslint-extends-bug\node_modules\eslint\lib\config\config-file.js:556:26)
    at configExtends.reduceRight (C:\dev\eslint-extends-bug\node_modules\eslint\lib\config\config-file.js:430:36)
    at Array.reduceRight (<anonymous>)
    at applyExtends (C:\dev\eslint-extends-bug\node_modules\eslint\lib\config\config-file.js:408:26)
    at loadFromDisk (C:\dev\eslint-extends-bug\node_modules\eslint\lib\config\config-file.js:528:22)
    at Object.load (C:\dev\eslint-extends-bug\node_modules\eslint\lib\config\config-file.js:564:20)
    at Config.getLocalConfigHierarchy (C:\dev\eslint-extends-bug\node_modules\eslint\lib\config.js:227:44)
    at Config.getConfigHierarchy (C:\dev\eslint-extends-bug\node_modules\eslint\lib\config.js:179:43)
npm ERR! code ELIFECYCLE
npm ERR! errno 2
npm ERR! app@1.0.0 lint: `eslint src`
npm ERR! Exit status 2

In the error logs we see that the error originates at ModuleResolver.resolve (C:\dev\eslint-extends-bug\node_modules\eslint\lib\util\module-resolver.js:74:19). I added console log after line#62 and these are the paths that eslint tries to search through:

[ 
  'C:\\dev\\eslint-extends-bug\\node_modules\\node_modules',
  'C:\\dev\\eslint-extends-bug\\node_modules\\eslint\\lib\\util\\node_modules',
  'C:\\dev\\eslint-extends-bug\\node_modules\\eslint\\lib\\node_modules',
  'C:\\dev\\eslint-extends-bug\\node_modules\\eslint\\node_modules',
  'C:\\dev\\eslint-extends-bug\\node_modules',
  'C:\\dev\\node_modules',
  'C:\\node_modules',
  'C:\\Users\\pc\\.node_modules',
  'C:\\Users\\pc\\.node_libraries',
  'C:\\Program Files\\nodejs\\lib\\node'
]

so looks like we’re missing here path to node_modules relative to process.cwd().