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// de-reference abbreviations and shorthands into canonical command name
const { aliases, cmdList, plumbing } = require('../utils/cmd-list.js')
const aliasNames = Object.keys(aliases)
const fullList = cmdList.concat(aliasNames).filter(c => !plumbing.includes(c))
const abbrev = require('abbrev')
const abbrevs = abbrev(fullList)
module.exports = c => {
if (!c || typeof c !== 'string')
return ''
if (c.match(/[A-Z]/))
c = c.replace(/([A-Z])/g, m => '-' + m.toLowerCase())
if (plumbing.indexOf(c) !== -1)
return c
// first deref the abbrev, if there is one
// then resolve any aliases
// so `npm install-cl` will resolve to `install-clean` then to `ci`
let a = abbrevs[c]
while (aliases[a])
a = aliases[a]
return a || ''
}