node/deps/npm/lib/utils/did-you-mean.js
npm team 7153d25dd6 deps: upgrade npm to 7.24.0
PR-URL: https://github.com/nodejs/node/pull/40167
Reviewed-By: Myles Borins <myles.borins@gmail.com>
Reviewed-By: Rich Trott <rtrott@gmail.com>
2021-09-20 15:51:14 -07:00

35 lines
1.3 KiB
JavaScript

const { distance } = require('fastest-levenshtein')
const readJson = require('read-package-json-fast')
const { cmdList } = require('./cmd-list.js')
const didYouMean = async (npm, path, scmd) => {
let best = cmdList
.filter(cmd => distance(scmd, cmd) < scmd.length * 0.4 && scmd !== cmd)
.map(str => ` npm ${str} # ${npm.commands[str].description}`)
// We would already be suggesting this in `npm x` so omit them here
const runScripts = ['stop', 'start', 'test', 'restart']
try {
const { bin, scripts } = await readJson(`${path}/package.json`)
best = best.concat(
Object.keys(scripts || {})
.filter(cmd => distance(scmd, cmd) < scmd.length * 0.4 &&
!runScripts.includes(cmd))
.map(str => ` npm run ${str} # run the "${str}" package script`),
Object.keys(bin || {})
.filter(cmd => distance(scmd, cmd) < scmd.length * 0.4)
.map(str => ` npm exec ${str} # run the "${str}" command from either this or a remote npm package`)
)
} catch (_) {
// gracefully ignore not being in a folder w/ a package.json
}
if (best.length === 0)
return ''
const suggestion = best.length === 1 ? `\n\nDid you mean this?\n${best[0]}`
: `\n\nDid you mean one of these?\n${best.slice(0, 3).join('\n')}`
return suggestion
}
module.exports = didYouMean