const abbrev = require('abbrev')
|
const debug = require('./debug')
|
const defaultTypeDefs = require('./type-defs')
|
|
const hasOwn = (o, k) => Object.prototype.hasOwnProperty.call(o, k)
|
|
const getType = (k, { types, dynamicTypes }) => {
|
let hasType = hasOwn(types, k)
|
let type = types[k]
|
if (!hasType && typeof dynamicTypes === 'function') {
|
const matchedType = dynamicTypes(k)
|
if (matchedType !== undefined) {
|
type = matchedType
|
hasType = true
|
}
|
}
|
return [hasType, type]
|
}
|
|
const isTypeDef = (type, def) => def && type === def
|
const hasTypeDef = (type, def) => def && type.indexOf(def) !== -1
|
const doesNotHaveTypeDef = (type, def) => def && !hasTypeDef(type, def)
|
|
function nopt (args, {
|
types,
|
shorthands,
|
typeDefs,
|
invalidHandler,
|
typeDefault,
|
dynamicTypes,
|
} = {}) {
|
debug(types, shorthands, args, typeDefs)
|
|
const data = {}
|
const argv = {
|
remain: [],
|
cooked: args,
|
original: args.slice(0),
|
}
|
|
parse(args, data, argv.remain, { typeDefs, types, dynamicTypes, shorthands })
|
|
// now data is full
|
clean(data, { types, dynamicTypes, typeDefs, invalidHandler, typeDefault })
|
data.argv = argv
|
|
Object.defineProperty(data.argv, 'toString', {
|
value: function () {
|
return this.original.map(JSON.stringify).join(' ')
|
},
|
enumerable: false,
|
})
|
|
return data
|
}
|
|
function clean (data, {
|
types = {},
|
typeDefs = {},
|
dynamicTypes,
|
invalidHandler,
|
typeDefault,
|
} = {}) {
|
const StringType = typeDefs.String?.type
|
const NumberType = typeDefs.Number?.type
|
const ArrayType = typeDefs.Array?.type
|
const BooleanType = typeDefs.Boolean?.type
|
const DateType = typeDefs.Date?.type
|
|
const hasTypeDefault = typeof typeDefault !== 'undefined'
|
if (!hasTypeDefault) {
|
typeDefault = [false, true, null]
|
if (StringType) {
|
typeDefault.push(StringType)
|
}
|
if (ArrayType) {
|
typeDefault.push(ArrayType)
|
}
|
}
|
|
const remove = {}
|
|
Object.keys(data).forEach((k) => {
|
if (k === 'argv') {
|
return
|
}
|
let val = data[k]
|
debug('val=%j', val)
|
const isArray = Array.isArray(val)
|
let [hasType, rawType] = getType(k, { types, dynamicTypes })
|
let type = rawType
|
if (!isArray) {
|
val = [val]
|
}
|
if (!type) {
|
type = typeDefault
|
}
|
if (isTypeDef(type, ArrayType)) {
|
type = typeDefault.concat(ArrayType)
|
}
|
if (!Array.isArray(type)) {
|
type = [type]
|
}
|
|
debug('val=%j', val)
|
debug('types=', type)
|
val = val.map((v) => {
|
// if it's an unknown value, then parse false/true/null/numbers/dates
|
if (typeof v === 'string') {
|
debug('string %j', v)
|
v = v.trim()
|
if ((v === 'null' && ~type.indexOf(null))
|
|| (v === 'true' &&
|
(~type.indexOf(true) || hasTypeDef(type, BooleanType)))
|
|| (v === 'false' &&
|
(~type.indexOf(false) || hasTypeDef(type, BooleanType)))) {
|
v = JSON.parse(v)
|
debug('jsonable %j', v)
|
} else if (hasTypeDef(type, NumberType) && !isNaN(v)) {
|
debug('convert to number', v)
|
v = +v
|
} else if (hasTypeDef(type, DateType) && !isNaN(Date.parse(v))) {
|
debug('convert to date', v)
|
v = new Date(v)
|
}
|
}
|
|
if (!hasType) {
|
if (!hasTypeDefault) {
|
return v
|
}
|
// if the default type has been passed in then we want to validate the
|
// unknown data key instead of bailing out earlier. we also set the raw
|
// type which is passed to the invalid handler so that it can be
|
// determined if during validation if it is unknown vs invalid
|
rawType = typeDefault
|
}
|
|
// allow `--no-blah` to set 'blah' to null if null is allowed
|
if (v === false && ~type.indexOf(null) &&
|
!(~type.indexOf(false) || hasTypeDef(type, BooleanType))) {
|
v = null
|
}
|
|
const d = {}
|
d[k] = v
|
debug('prevalidated val', d, v, rawType)
|
if (!validate(d, k, v, rawType, { typeDefs })) {
|
if (invalidHandler) {
|
invalidHandler(k, v, rawType, data)
|
} else if (invalidHandler !== false) {
|
debug('invalid: ' + k + '=' + v, rawType)
|
}
|
return remove
|
}
|
debug('validated v', d, v, rawType)
|
return d[k]
|
}).filter((v) => v !== remove)
|
|
// if we allow Array specifically, then an empty array is how we
|
// express 'no value here', not null. Allow it.
|
if (!val.length && doesNotHaveTypeDef(type, ArrayType)) {
|
debug('VAL HAS NO LENGTH, DELETE IT', val, k, type.indexOf(ArrayType))
|
delete data[k]
|
} else if (isArray) {
|
debug(isArray, data[k], val)
|
data[k] = val
|
} else {
|
data[k] = val[0]
|
}
|
|
debug('k=%s val=%j', k, val, data[k])
|
})
|
}
|
|
function validate (data, k, val, type, { typeDefs } = {}) {
|
const ArrayType = typeDefs?.Array?.type
|
// arrays are lists of types.
|
if (Array.isArray(type)) {
|
for (let i = 0, l = type.length; i < l; i++) {
|
if (isTypeDef(type[i], ArrayType)) {
|
continue
|
}
|
if (validate(data, k, val, type[i], { typeDefs })) {
|
return true
|
}
|
}
|
delete data[k]
|
return false
|
}
|
|
// an array of anything?
|
if (isTypeDef(type, ArrayType)) {
|
return true
|
}
|
|
// Original comment:
|
// NaN is poisonous. Means that something is not allowed.
|
// New comment: Changing this to an isNaN check breaks a lot of tests.
|
// Something is being assumed here that is not actually what happens in
|
// practice. Fixing it is outside the scope of getting linting to pass in
|
// this repo. Leaving as-is for now.
|
/* eslint-disable-next-line no-self-compare */
|
if (type !== type) {
|
debug('Poison NaN', k, val, type)
|
delete data[k]
|
return false
|
}
|
|
// explicit list of values
|
if (val === type) {
|
debug('Explicitly allowed %j', val)
|
data[k] = val
|
return true
|
}
|
|
// now go through the list of typeDefs, validate against each one.
|
let ok = false
|
const types = Object.keys(typeDefs)
|
for (let i = 0, l = types.length; i < l; i++) {
|
debug('test type %j %j %j', k, val, types[i])
|
const t = typeDefs[types[i]]
|
if (t && (
|
(type && type.name && t.type && t.type.name) ?
|
(type.name === t.type.name) :
|
(type === t.type)
|
)) {
|
const d = {}
|
ok = t.validate(d, k, val) !== false
|
val = d[k]
|
if (ok) {
|
data[k] = val
|
break
|
}
|
}
|
}
|
debug('OK? %j (%j %j %j)', ok, k, val, types[types.length - 1])
|
|
if (!ok) {
|
delete data[k]
|
}
|
return ok
|
}
|
|
function parse (args, data, remain, {
|
types = {},
|
typeDefs = {},
|
shorthands = {},
|
dynamicTypes,
|
} = {}) {
|
const StringType = typeDefs.String?.type
|
const NumberType = typeDefs.Number?.type
|
const ArrayType = typeDefs.Array?.type
|
const BooleanType = typeDefs.Boolean?.type
|
|
debug('parse', args, data, remain)
|
|
const abbrevs = abbrev(Object.keys(types))
|
debug('abbrevs=%j', abbrevs)
|
const shortAbbr = abbrev(Object.keys(shorthands))
|
|
for (let i = 0; i < args.length; i++) {
|
let arg = args[i]
|
debug('arg', arg)
|
|
if (arg.match(/^-{2,}$/)) {
|
// done with keys.
|
// the rest are args.
|
remain.push.apply(remain, args.slice(i + 1))
|
args[i] = '--'
|
break
|
}
|
let hadEq = false
|
if (arg.charAt(0) === '-' && arg.length > 1) {
|
const at = arg.indexOf('=')
|
if (at > -1) {
|
hadEq = true
|
const v = arg.slice(at + 1)
|
arg = arg.slice(0, at)
|
args.splice(i, 1, arg, v)
|
}
|
|
// see if it's a shorthand
|
// if so, splice and back up to re-parse it.
|
const shRes = resolveShort(arg, shortAbbr, abbrevs, { shorthands })
|
debug('arg=%j shRes=%j', arg, shRes)
|
if (shRes) {
|
args.splice.apply(args, [i, 1].concat(shRes))
|
if (arg !== shRes[0]) {
|
i--
|
continue
|
}
|
}
|
arg = arg.replace(/^-+/, '')
|
let no = null
|
while (arg.toLowerCase().indexOf('no-') === 0) {
|
no = !no
|
arg = arg.slice(3)
|
}
|
|
if (abbrevs[arg]) {
|
arg = abbrevs[arg]
|
}
|
|
let [hasType, argType] = getType(arg, { types, dynamicTypes })
|
let isTypeArray = Array.isArray(argType)
|
if (isTypeArray && argType.length === 1) {
|
isTypeArray = false
|
argType = argType[0]
|
}
|
|
let isArray = isTypeDef(argType, ArrayType) ||
|
isTypeArray && hasTypeDef(argType, ArrayType)
|
|
// allow unknown things to be arrays if specified multiple times.
|
if (!hasType && hasOwn(data, arg)) {
|
if (!Array.isArray(data[arg])) {
|
data[arg] = [data[arg]]
|
}
|
isArray = true
|
}
|
|
let val
|
let la = args[i + 1]
|
|
const isBool = typeof no === 'boolean' ||
|
isTypeDef(argType, BooleanType) ||
|
isTypeArray && hasTypeDef(argType, BooleanType) ||
|
(typeof argType === 'undefined' && !hadEq) ||
|
(la === 'false' &&
|
(argType === null ||
|
isTypeArray && ~argType.indexOf(null)))
|
|
if (isBool) {
|
// just set and move along
|
val = !no
|
// however, also support --bool true or --bool false
|
if (la === 'true' || la === 'false') {
|
val = JSON.parse(la)
|
la = null
|
if (no) {
|
val = !val
|
}
|
i++
|
}
|
|
// also support "foo":[Boolean, "bar"] and "--foo bar"
|
if (isTypeArray && la) {
|
if (~argType.indexOf(la)) {
|
// an explicit type
|
val = la
|
i++
|
} else if (la === 'null' && ~argType.indexOf(null)) {
|
// null allowed
|
val = null
|
i++
|
} else if (!la.match(/^-{2,}[^-]/) &&
|
!isNaN(la) &&
|
hasTypeDef(argType, NumberType)) {
|
// number
|
val = +la
|
i++
|
} else if (!la.match(/^-[^-]/) && hasTypeDef(argType, StringType)) {
|
// string
|
val = la
|
i++
|
}
|
}
|
|
if (isArray) {
|
(data[arg] = data[arg] || []).push(val)
|
} else {
|
data[arg] = val
|
}
|
|
continue
|
}
|
|
if (isTypeDef(argType, StringType)) {
|
if (la === undefined) {
|
la = ''
|
} else if (la.match(/^-{1,2}[^-]+/)) {
|
la = ''
|
i--
|
}
|
}
|
|
if (la && la.match(/^-{2,}$/)) {
|
la = undefined
|
i--
|
}
|
|
val = la === undefined ? true : la
|
if (isArray) {
|
(data[arg] = data[arg] || []).push(val)
|
} else {
|
data[arg] = val
|
}
|
|
i++
|
continue
|
}
|
remain.push(arg)
|
}
|
}
|
|
const SINGLES = Symbol('singles')
|
const singleCharacters = (arg, shorthands) => {
|
let singles = shorthands[SINGLES]
|
if (!singles) {
|
singles = Object.keys(shorthands).filter((s) => s.length === 1).reduce((l, r) => {
|
l[r] = true
|
return l
|
}, {})
|
shorthands[SINGLES] = singles
|
debug('shorthand singles', singles)
|
}
|
const chrs = arg.split('').filter((c) => singles[c])
|
return chrs.join('') === arg ? chrs : null
|
}
|
|
function resolveShort (arg, ...rest) {
|
const { types = {}, shorthands = {} } = rest.length ? rest.pop() : {}
|
const shortAbbr = rest[0] ?? abbrev(Object.keys(shorthands))
|
const abbrevs = rest[1] ?? abbrev(Object.keys(types))
|
|
// handle single-char shorthands glommed together, like
|
// npm ls -glp, but only if there is one dash, and only if
|
// all of the chars are single-char shorthands, and it's
|
// not a match to some other abbrev.
|
arg = arg.replace(/^-+/, '')
|
|
// if it's an exact known option, then don't go any further
|
if (abbrevs[arg] === arg) {
|
return null
|
}
|
|
// if it's an exact known shortopt, same deal
|
if (shorthands[arg]) {
|
// make it an array, if it's a list of words
|
if (shorthands[arg] && !Array.isArray(shorthands[arg])) {
|
shorthands[arg] = shorthands[arg].split(/\s+/)
|
}
|
|
return shorthands[arg]
|
}
|
|
// first check to see if this arg is a set of single-char shorthands
|
const chrs = singleCharacters(arg, shorthands)
|
if (chrs) {
|
return chrs.map((c) => shorthands[c]).reduce((l, r) => l.concat(r), [])
|
}
|
|
// if it's an arg abbrev, and not a literal shorthand, then prefer the arg
|
if (abbrevs[arg] && !shorthands[arg]) {
|
return null
|
}
|
|
// if it's an abbr for a shorthand, then use that
|
if (shortAbbr[arg]) {
|
arg = shortAbbr[arg]
|
}
|
|
// make it an array, if it's a list of words
|
if (shorthands[arg] && !Array.isArray(shorthands[arg])) {
|
shorthands[arg] = shorthands[arg].split(/\s+/)
|
}
|
|
return shorthands[arg]
|
}
|
|
module.exports = {
|
nopt,
|
clean,
|
parse,
|
validate,
|
resolveShort,
|
typeDefs: defaultTypeDefs,
|
}
|
