Yarn not reading /etc/npmrc while npm does

[jaramir]

I'm using yarn 0.17.3, this AFAIK is a bug.

In CI we have a file /etc/npmrc to point to the proxy we use for internet access:

ci$ cat /etc/npmrc
proxy = http://npmcache:3128
https-proxy = http://npmcache:3128

npm is picking up this configuration:

ci$ npm config list
; cli configs
user-agent = "npm/3.10.3 node/v6.7.0 linux x64"

; globalconfig /usr/etc/npmrc
https-proxy = "http://npmcache:3128/"
proxy = "http://npmcache:3128/"

; node bin location = /usr/bin/nodejs
; cwd = /home/ci
; HOME = /home/ci
; "npm config ls -l" to show all defaults.

But yarn does not:

ci$ yarn config list
yarn config v0.17.3
info yarn config
{ 'version-tag-prefix': 'v',
  'version-git-tag': true,
  'version-git-sign': false,
  'version-git-message': 'v%s',
  'init-version': '1.0.0',
  'init-license': 'MIT',
  'save-prefix': '^',
  'ignore-scripts': false,
  'ignore-optional': false,
  registry: 'https://registry.yarnpkg.com',
  'strict-ssl': true,
  'user-agent': 'yarn/0.17.3 npm/? node/v6.7.0 linux x64' }
info npm config
{}
Done in 0.07s.

[jpbochi]

I'm running yarn 0.22.0 and the issue persists. The expected path is actually $(npm prefix -g)/etc/npmrc, which usually resolves to /usr/local/etc/npmrc. Neither that nor /etc/npmrc are read by yarn.

For reference, see https://docs.npmjs.com/files/npmrc

[bestander]

Go ahead, send a PR