Yarn: devDependencies are not installed when both `NODE_ENV=production` and `NPM_CONFIG_PRODUCTION=false` are set

[joeyespo]

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

What is the current behavior?

NODE_ENV seems to be taking precedence over NPM_CONFIG_PRODUCTION (and YARN_PRODUCTION).

In npm, it's the opposite.

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

$ yarn init -y
$ yarn add Base64
$ yarn add --dev blob
$ rm -rf node_modules
$ NODE_ENV=production NPM_CONFIG_PRODUCTION=false yarn

This doesn't install blob.

What is the expected behavior?

It should install devDependencies like npm does:

$ yarn init -y
$ yarn add Base64
$ yarn add --dev blob
$ rm -rf node_modules
$ NODE_ENV=production NPM_CONFIG_PRODUCTION=false npm install

This does install blob.

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

$ node -v
v6.3.1

$ npm -v
3.10.3

$ yarn -V
0.17.8

Windows 10

[adamreisnz]

@joeyespo

(and YARN_PRODUCTION)

Is that a real thing? I didn't come across it in any documentation, and Googling for it is nearly impossible due to the articles about yarn production that show up...

[joeyespo]

@adamreisnz Yeah, it's the same deal with NPM_CONFIG_. It's a prefix that you can use to specify any of the npm options. YARN_ is the Yarn-equivalent, with NPM_CONFIG_ for backwards-compatibility. So it doesn't really show up in any searches. (I figured this out after digging around a while.)

[adamreisnz]

Ok thanks, I'll give it a go. Might be useful for my issue where I want to install only prod dependencies, yet have NODE_ENV set to something else, like staging.

Edit ok it's not useful after all, as it overwrites NODE_ENV to production.

[bestander]

BTW a PR for the docs change is welcome

On Sat, 17 Dec 2016 at 21:02, Adam Reis [e-mail] wrote:

Ok thanks, I'll give it a go. Might be useful for my issue where I want to
install only prod dependencies, yet have NODE_ENV set to something
else, like staging.

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[itaysabato]

This issue is blocking me from migrating to yarn. When can we expect a release including the fix?