├── .editorconfig
├── .gitignore
├── README.md
├── index.js
└── package.json


/.editorconfig:
--------------------------------------------------------------------------------
 1 | 
 2 | # editorconfig.org
 3 | root = true
 4 | 
 5 | [*]
 6 | indent_style = space
 7 | indent_size = 2
 8 | end_of_line = lf
 9 | charset = utf-8
10 | trim_trailing_whitespace = true
11 | insert_final_newline = true
12 | 
13 | [*.md]
14 | trim_trailing_whitespace = true
15 | 


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/.gitignore:
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 1 | # Logs
 2 | logs
 3 | *.log
 4 | npm-debug.log*
 5 | 
 6 | # Runtime data
 7 | pids
 8 | *.pid
 9 | *.seed
10 | 
11 | # Directory for instrumented libs generated by jscoverage/JSCover
12 | lib-cov
13 | 
14 | # Coverage directory used by tools like istanbul
15 | coverage
16 | 
17 | # Grunt intermediate storage (http://gruntjs.com/creating-plugins#storing-task-files)
18 | .grunt
19 | 
20 | # node-waf configuration
21 | .lock-wscript
22 | 
23 | # Compiled binary addons (http://nodejs.org/api/addons.html)
24 | build/Release
25 | 
26 | # Dependency directory
27 | node_modules
28 | 
29 | # Optional npm cache directory
30 | .npm
31 | 
32 | # Optional REPL history
33 | .node_repl_history
34 | 


--------------------------------------------------------------------------------
/README.md:
--------------------------------------------------------------------------------
 1 | # use-yarn-instead
 2 | 
 3 | ![unstable](https://img.shields.io/badge/status-unstable-yellow.svg)
 4 | 
 5 | This package is a playground for technically enforcing the use of `yarn` instead of `npm` on a project. You can read [@farisj's use case](https://github.com/alexanderwallin/use-yarn-instead/issues/1#issuecomment-277493922) to get a kind of rationale for it.
 6 | 
 7 | You should probably not be using this!
 8 | 
 9 | ## Usage
10 | 
11 | The published package hooks up to the `postinstall` npm hook and displays a message when a developer runs `npm install` instead of `yarn install`. The problem with this is that it does not stop the installation process. Also, the warning will be superseeded by a massive package depenceny graph, which will almost guaranteedly make people miss it.
12 | 
13 | Example:
14 | 
15 | ```sh
16 | $ npm install
17 | 
18 | # npm output...
19 | 
20 | ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~
21 | 
22 |        Psst, use `yarn` instead
23 | 
24 | ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~
25 | 
26 | # npm graph...
27 | 
28 | $
29 | ```
30 | 


--------------------------------------------------------------------------------
/index.js:
--------------------------------------------------------------------------------
 1 | #!/usr/bin/env node
 2 | const psList = require('ps-list')
 3 | const colors = require('colors')
 4 | 
 5 | psList()
 6 |   .then(results => {
 7 |     const yarnProcess = results.filter(p => p.name === 'yarn').shift()
 8 |     if (!yarnProcess) {
 9 |       console.log(`
10 | ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~
11 | 
12 |        Psst, use \`yarn\` instead
13 | 
14 | ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~
15 | 
16 | `.red)
17 |     }
18 |   })
19 |   .catch(err => console.log('error:', err))
20 | 


--------------------------------------------------------------------------------
/package.json:
--------------------------------------------------------------------------------
 1 | {
 2 |   "name": "use-yarn-instead",
 3 |   "version": "0.2.2",
 4 |   "description": "",
 5 |   "main": "index.js",
 6 |   "scripts": {
 7 |     "postinstall": "./index.js"
 8 |   },
 9 |   "keywords": [],
10 |   "author": "Alexander Wallin <office@alexanderwallin.com> (http://alexanderwallin.com)",
11 |   "license": "ISC",
12 |   "dependencies": {
13 |     "colors": "^1.1.2",
14 |     "ps-list": "^3.1.0"
15 |   }
16 | }
17 | 


--------------------------------------------------------------------------------