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| Current File : //proc/self/root/usr/lib/node_modules/npm/node_modules/@npmcli/config/lib/parse-field.js |
// Parse a field, coercing it to the best type available.
const typeDefs = require('./type-defs.js')
const envReplace = require('./env-replace.js')
const { resolve } = require('path')
const { parse: umaskParse } = require('./umask.js')
const parseField = (f, key, opts, listElement = false) => {
if (typeof f !== 'string' && !Array.isArray(f)) {
return f
}
const { platform, types, home, env } = opts
// type can be array or a single thing. coerce to array.
const typeList = new Set([].concat(types[key]))
const isPath = typeList.has(typeDefs.path.type)
const isBool = typeList.has(typeDefs.Boolean.type)
const isString = isPath || typeList.has(typeDefs.String.type)
const isUmask = typeList.has(typeDefs.Umask.type)
const isNumber = typeList.has(typeDefs.Number.type)
const isList = !listElement && typeList.has(Array)
if (Array.isArray(f)) {
return !isList ? f : f.map(field => parseField(field, key, opts, true))
}
// now we know it's a string
f = f.trim()
// list types get put in the environment separated by double-\n
// usually a single \n would suffice, but ca/cert configs can contain
// line breaks and multiple entries.
if (isList) {
return parseField(f.split('\n\n'), key, opts)
}
// --foo is like --foo=true for boolean types
if (isBool && !isString && f === '') {
return true
}
// string types can be the string 'true', 'false', etc.
// otherwise, parse these values out
if (!isString && !isPath && !isNumber) {
switch (f) {
case 'true': return true
case 'false': return false
case 'null': return null
case 'undefined': return undefined
}
}
f = envReplace(f, env)
if (isPath) {
const homePattern = platform === 'win32' ? /^~(\/|\\)/ : /^~\//
if (homePattern.test(f) && home) {
f = resolve(home, f.slice(2))
} else {
f = resolve(f)
}
}
if (isUmask) {
try {
return umaskParse(f)
} catch (er) {
// let it warn later when we validate
return f
}
}
if (isNumber && !isNaN(f)) {
f = +f
}
return f
}
module.exports = parseField
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