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5fdcfb33d7
PR-URL: https://github.com/nodejs/node/pull/37721 Reviewed-By: Rich Trott <rtrott@gmail.com> Reviewed-By: Luigi Pinca <luigipinca@gmail.com> Reviewed-By: Antoine du Hamel <duhamelantoine1995@gmail.com>
73 lines
2.0 KiB
JavaScript
73 lines
2.0 KiB
JavaScript
const didYouMean = require('./did-you-mean.js')
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const { dirname } = require('path')
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const { cmdList } = require('./cmd-list')
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module.exports = (npm, valid = true) => {
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npm.config.set('loglevel', 'silent')
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const usesBrowser = npm.config.get('viewer') === 'browser'
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? ' (in a browser)' : ''
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npm.log.level = 'silent'
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npm.output(`
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Usage: npm <command>
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npm install install all the dependencies in your project
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npm install <foo> add the <foo> dependency to your project
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npm test run this project's tests
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npm run <foo> run the script named <foo>
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npm <command> -h quick help on <command>
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npm -l display usage info for all commands
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npm help <term> search for help on <term>${usesBrowser}
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npm help npm more involved overview${usesBrowser}
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All commands:
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${npm.config.get('long') ? usages(npm) : ('\n ' + wrap(cmdList))}
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Specify configs in the ini-formatted file:
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${npm.config.get('userconfig')}
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or on the command line via: npm <command> --key=value
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More configuration info: npm help config
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Configuration fields: npm help 7 config
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npm@${npm.version} ${dirname(dirname(__dirname))}
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`)
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if (npm.argv.length >= 1)
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npm.output(didYouMean(npm.argv[0], cmdList))
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if (!valid)
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process.exitCode = 1
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}
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const wrap = (arr) => {
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const out = ['']
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const line = !process.stdout.columns ? 60
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: Math.min(60, Math.max(process.stdout.columns - 16, 24))
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let l = 0
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for (const c of arr.sort((a, b) => a < b ? -1 : 1)) {
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if (out[l].length + c.length + 2 < line)
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out[l] += ', ' + c
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else {
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out[l++] += ','
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out[l] = c
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}
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}
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return out.join('\n ').substr(2)
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}
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const usages = (npm) => {
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// return a string of <command>: <usage>
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let maxLen = 0
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return cmdList.reduce((set, c) => {
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set.push([c, npm.commands[c].usage])
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maxLen = Math.max(maxLen, c.length)
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return set
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}, [])
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.sort((a, b) => a[0].localeCompare(b[0]))
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.map(([c, usage]) => `\n ${c}${' '.repeat(maxLen - c.length + 1)}${
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(usage.split('\n').join('\n' + ' '.repeat(maxLen + 5)))}`)
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.join('\n')
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}
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