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Mini Shell
const { dirname } = require('path')
const { commands } = require('./cmd-list')
const localeCompare = require('@isaacs/string-locale-compare')('en')
module.exports = async (npm) => {
const usesBrowser = npm.config.get('viewer') === 'browser'
? ' (in a browser)' : ''
return `npm <command>
Usage:
npm install install all the dependencies in your project
npm install <foo> add the <foo> dependency to your project
npm test run this project's tests
npm run <foo> run the script named <foo>
npm <command> -h quick help on <command>
npm -l display usage info for all commands
npm help <term> search for help on <term>${usesBrowser}
npm help npm more involved overview${usesBrowser}
All commands:
${await allCommands(npm)}
Specify configs in the ini-formatted file:
${npm.config.get('userconfig')}
or on the command line via: npm <command> --key=value
More configuration info: npm help config
Configuration fields: npm help 7 config
npm@${npm.version} ${dirname(dirname(__dirname))}`
}
const allCommands = async (npm) => {
if (npm.config.get('long')) {
return usages(npm)
}
return ('\n ' + wrap(commands))
}
const wrap = (arr) => {
const out = ['']
const line = !process.stdout.columns ? 60
: Math.min(60, Math.max(process.stdout.columns - 16, 24))
let l = 0
for (const c of arr) {
if (out[l].length + c.length + 2 < line) {
out[l] += ', ' + c
} else {
out[l++] += ','
out[l] = c
}
}
return out.join('\n ').slice(2)
}
const usages = async (npm) => {
// return a string of <command>: <usage>
let maxLen = 0
const set = []
for (const c of commands) {
const cmd = await npm.cmd(c)
set.push([c, cmd.usage])
maxLen = Math.max(maxLen, c.length)
}
return set.sort(([a], [b]) => localeCompare(a, b))
.map(([c, usage]) => `\n ${c}${' '.repeat(maxLen - c.length + 1)}${
(usage.split('\n').join('\n' + ' '.repeat(maxLen + 5)))}`)
.join('\n')
}
Zerion Mini Shell 1.0