Yarn not install dependencies correctly

[mark86092]

Do you want to request a feature or report a bug?

bug

What is the current behavior?
Prepare a package.json

{
  "dependencies": {
    "request": "^2.81.0"
  },
  "devDependencies": {
    "co": "^4.6.0"
  }
}

Run NODE_ENV=production yarn install

Expect co still install as dependency of request, but not

If the current behavior is a bug, please provide the steps to reproduce.

1. Prepare package.json in your folder (only this file)

{
  "dependencies": {
    "request": "^2.81.0"
  },
  "devDependencies": {
    "co": "^4.6.0"
  }
}

2. Run NODE_ENV=production yarn install

3. Run a node, and require('request') fails

What is the expected behavior?

I install via NODE_ENV=production npm install

Run a node, and require('request') works

Please mention your node.js, yarn and operating system version.

node: v7.8.0
yarn: 0.22.0
os: mac

and tested on

node: v6.10.0
yarn: 0.21.3
os: linux ubuntu 16.04.2

tested on docker, too

other information

I'm not sure whether I misunderstand NODE_ENV or not, but the current behavior forces me to move the co to my production dependencies

If duplicated, close this

Thanks you for reading

[hackape]

This is actually a FEATURE™ not a bug, read here. But I was preparing to file same issue like you, @mark86092 bro. This is clearly over designed.

Please, yarn team, consider remove this feature, just keep the --prod flag that's enough.

[vizath]

Can you try with 0.23.1? see #2921

[mark86092]

Great, thanks @vizath