yarn ls <package> is missing.

[cpojer]

Missing feature, compare with npm ls once. Should yarn why once be the replacement for it? If so, the dependency graph that it shows seems wrong.

[cpojer: ~/Projects/yarn (master)]$ yarn why once
yarn why v0.14.0
[1/3] 🤔  Why do we have the module "once"...?
[2/3] 🚚  Initialising dependency graph...
[3/3] 🔍  Finding dependency...
info Reasons this module exists
   - "node-gyp#glob" depends on it
   - "jest#jest-cli#istanbul-api" depends on it

[cpojer: ~/Projects/yarn (master)]$ npm ls once
yarn@0.14.0 /Users/cpojer/Projects/yarn
├─┬ eslint@3.7.1
│ └─┬ glob@7.1.0
│   └── once@1.4.0
├─┬ gulp@3.9.1
│ └─┬ orchestrator@0.3.7
│   └─┬ end-of-stream@0.1.5
│     └── once@1.3.3
└─┬ tar-stream@1.5.2
  └─┬ end-of-stream@1.1.0
    └── once@1.3.3

[torifat]

We have yarn ls <package> now 😃

[cpojer]

@torifat awesome!!

[sudo-suhas]

For anyone who comes here in search of the ls command, yarn list <package> works on v1.9.4(ls doesn't work).

[shaodahong]

yarn ls <package> not found

❯ yarn ls react     
yarn run v1.19.1
error Command "ls" not found.
info Visit https://yarnpkg.com/en/docs/cli/run for documentation about this command.

[virtuoushub]

For anyone who comes here in search of the ls command, yarn list <package> works on v1.9.4(ls doesn't work).

for anyone who comes here using yarn@berry (v2+):

Use the yarn why command - https://yarnpkg.com/cli/why

yarn why vue

yarnpkg/berry#720 (comment)