You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
442 lines
12 KiB
442 lines
12 KiB
// info about each config option.
|
|
|
|
var debug = process.env.DEBUG_NOPT || process.env.NOPT_DEBUG
|
|
? function () { console.error.apply(console, arguments) }
|
|
: function () {}
|
|
|
|
var url = require("url")
|
|
, path = require("path")
|
|
, Stream = require("stream").Stream
|
|
, abbrev = require("abbrev")
|
|
, os = require("os")
|
|
|
|
module.exports = exports = nopt
|
|
exports.clean = clean
|
|
|
|
exports.typeDefs =
|
|
{ String : { type: String, validate: validateString }
|
|
, Boolean : { type: Boolean, validate: validateBoolean }
|
|
, url : { type: url, validate: validateUrl }
|
|
, Number : { type: Number, validate: validateNumber }
|
|
, path : { type: path, validate: validatePath }
|
|
, Stream : { type: Stream, validate: validateStream }
|
|
, Date : { type: Date, validate: validateDate }
|
|
}
|
|
|
|
function nopt (types, shorthands, args, slice) {
|
|
args = args || process.argv
|
|
types = types || {}
|
|
shorthands = shorthands || {}
|
|
if (typeof slice !== "number") slice = 2
|
|
|
|
debug(types, shorthands, args, slice)
|
|
|
|
args = args.slice(slice)
|
|
var data = {}
|
|
, key
|
|
, argv = {
|
|
remain: [],
|
|
cooked: args,
|
|
original: args.slice(0)
|
|
}
|
|
|
|
parse(args, data, argv.remain, types, shorthands)
|
|
// now data is full
|
|
clean(data, types, exports.typeDefs)
|
|
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) {
|
|
typeDefs = typeDefs || exports.typeDefs
|
|
var remove = {}
|
|
, typeDefault = [false, true, null, String, Array]
|
|
|
|
Object.keys(data).forEach(function (k) {
|
|
if (k === "argv") return
|
|
var val = data[k]
|
|
, isArray = Array.isArray(val)
|
|
, type = types[k]
|
|
if (!isArray) val = [val]
|
|
if (!type) type = typeDefault
|
|
if (type === Array) type = typeDefault.concat(Array)
|
|
if (!Array.isArray(type)) type = [type]
|
|
|
|
debug("val=%j", val)
|
|
debug("types=", type)
|
|
val = val.map(function (val) {
|
|
// if it's an unknown value, then parse false/true/null/numbers/dates
|
|
if (typeof val === "string") {
|
|
debug("string %j", val)
|
|
val = val.trim()
|
|
if ((val === "null" && ~type.indexOf(null))
|
|
|| (val === "true" &&
|
|
(~type.indexOf(true) || ~type.indexOf(Boolean)))
|
|
|| (val === "false" &&
|
|
(~type.indexOf(false) || ~type.indexOf(Boolean)))) {
|
|
val = JSON.parse(val)
|
|
debug("jsonable %j", val)
|
|
} else if (~type.indexOf(Number) && !isNaN(val)) {
|
|
debug("convert to number", val)
|
|
val = +val
|
|
} else if (~type.indexOf(Date) && !isNaN(Date.parse(val))) {
|
|
debug("convert to date", val)
|
|
val = new Date(val)
|
|
}
|
|
}
|
|
|
|
if (!types.hasOwnProperty(k)) {
|
|
return val
|
|
}
|
|
|
|
// allow `--no-blah` to set 'blah' to null if null is allowed
|
|
if (val === false && ~type.indexOf(null) &&
|
|
!(~type.indexOf(false) || ~type.indexOf(Boolean))) {
|
|
val = null
|
|
}
|
|
|
|
var d = {}
|
|
d[k] = val
|
|
debug("prevalidated val", d, val, types[k])
|
|
if (!validate(d, k, val, types[k], typeDefs)) {
|
|
if (exports.invalidHandler) {
|
|
exports.invalidHandler(k, val, types[k], data)
|
|
} else if (exports.invalidHandler !== false) {
|
|
debug("invalid: "+k+"="+val, types[k])
|
|
}
|
|
return remove
|
|
}
|
|
debug("validated val", d, val, types[k])
|
|
return d[k]
|
|
}).filter(function (val) { return val !== remove })
|
|
|
|
// if we allow Array specifically, then an empty array is how we
|
|
// express 'no value here', not null. Allow it.
|
|
if (!val.length && type.indexOf(Array) === -1) {
|
|
debug('VAL HAS NO LENGTH, DELETE IT', val, k, type.indexOf(Array))
|
|
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 validateString (data, k, val) {
|
|
data[k] = String(val)
|
|
}
|
|
|
|
function validatePath (data, k, val) {
|
|
if (val === true) return false
|
|
if (val === null) return true
|
|
|
|
val = String(val)
|
|
|
|
var isWin = process.platform === 'win32'
|
|
, homePattern = isWin ? /^~(\/|\\)/ : /^~\//
|
|
, home = os.homedir()
|
|
|
|
if (home && val.match(homePattern)) {
|
|
data[k] = path.resolve(home, val.substr(2))
|
|
} else {
|
|
data[k] = path.resolve(val)
|
|
}
|
|
return true
|
|
}
|
|
|
|
function validateNumber (data, k, val) {
|
|
debug("validate Number %j %j %j", k, val, isNaN(val))
|
|
if (isNaN(val)) return false
|
|
data[k] = +val
|
|
}
|
|
|
|
function validateDate (data, k, val) {
|
|
var s = Date.parse(val)
|
|
debug("validate Date %j %j %j", k, val, s)
|
|
if (isNaN(s)) return false
|
|
data[k] = new Date(val)
|
|
}
|
|
|
|
function validateBoolean (data, k, val) {
|
|
if (val instanceof Boolean) val = val.valueOf()
|
|
else if (typeof val === "string") {
|
|
if (!isNaN(val)) val = !!(+val)
|
|
else if (val === "null" || val === "false") val = false
|
|
else val = true
|
|
} else val = !!val
|
|
data[k] = val
|
|
}
|
|
|
|
function validateUrl (data, k, val) {
|
|
val = url.parse(String(val))
|
|
if (!val.host) return false
|
|
data[k] = val.href
|
|
}
|
|
|
|
function validateStream (data, k, val) {
|
|
if (!(val instanceof Stream)) return false
|
|
data[k] = val
|
|
}
|
|
|
|
function validate (data, k, val, type, typeDefs) {
|
|
// arrays are lists of types.
|
|
if (Array.isArray(type)) {
|
|
for (var i = 0, l = type.length; i < l; i ++) {
|
|
if (type[i] === Array) continue
|
|
if (validate(data, k, val, type[i], typeDefs)) return true
|
|
}
|
|
delete data[k]
|
|
return false
|
|
}
|
|
|
|
// an array of anything?
|
|
if (type === Array) return true
|
|
|
|
// NaN is poisonous. Means that something is not allowed.
|
|
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)
|
|
// if (isArray) (data[k] = data[k] || []).push(val)
|
|
// else data[k] = val
|
|
data[k] = val
|
|
return true
|
|
}
|
|
|
|
// now go through the list of typeDefs, validate against each one.
|
|
var ok = false
|
|
, types = Object.keys(typeDefs)
|
|
for (var i = 0, l = types.length; i < l; i ++) {
|
|
debug("test type %j %j %j", k, val, types[i])
|
|
var t = typeDefs[types[i]]
|
|
if (t &&
|
|
((type && type.name && t.type && t.type.name) ? (type.name === t.type.name) : (type === t.type))) {
|
|
var d = {}
|
|
ok = false !== t.validate(d, k, val)
|
|
val = d[k]
|
|
if (ok) {
|
|
// if (isArray) (data[k] = data[k] || []).push(val)
|
|
// else data[k] = val
|
|
data[k] = val
|
|
break
|
|
}
|
|
}
|
|
}
|
|
debug("OK? %j (%j %j %j)", ok, k, val, types[i])
|
|
|
|
if (!ok) delete data[k]
|
|
return ok
|
|
}
|
|
|
|
function parse (args, data, remain, types, shorthands) {
|
|
debug("parse", args, data, remain)
|
|
|
|
var key = null
|
|
, abbrevs = abbrev(Object.keys(types))
|
|
, shortAbbr = abbrev(Object.keys(shorthands))
|
|
|
|
for (var i = 0; i < args.length; i ++) {
|
|
var 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
|
|
}
|
|
var hadEq = false
|
|
if (arg.charAt(0) === "-" && arg.length > 1) {
|
|
var at = arg.indexOf('=')
|
|
if (at > -1) {
|
|
hadEq = true
|
|
var v = arg.substr(at + 1)
|
|
arg = arg.substr(0, at)
|
|
args.splice(i, 1, arg, v)
|
|
}
|
|
|
|
// see if it's a shorthand
|
|
// if so, splice and back up to re-parse it.
|
|
var shRes = resolveShort(arg, shorthands, shortAbbr, abbrevs)
|
|
debug("arg=%j shRes=%j", arg, shRes)
|
|
if (shRes) {
|
|
debug(arg, shRes)
|
|
args.splice.apply(args, [i, 1].concat(shRes))
|
|
if (arg !== shRes[0]) {
|
|
i --
|
|
continue
|
|
}
|
|
}
|
|
arg = arg.replace(/^-+/, "")
|
|
var no = null
|
|
while (arg.toLowerCase().indexOf("no-") === 0) {
|
|
no = !no
|
|
arg = arg.substr(3)
|
|
}
|
|
|
|
if (abbrevs[arg]) arg = abbrevs[arg]
|
|
|
|
var argType = types[arg]
|
|
var isTypeArray = Array.isArray(argType)
|
|
if (isTypeArray && argType.length === 1) {
|
|
isTypeArray = false
|
|
argType = argType[0]
|
|
}
|
|
|
|
var isArray = argType === Array ||
|
|
isTypeArray && argType.indexOf(Array) !== -1
|
|
|
|
// allow unknown things to be arrays if specified multiple times.
|
|
if (!types.hasOwnProperty(arg) && data.hasOwnProperty(arg)) {
|
|
if (!Array.isArray(data[arg]))
|
|
data[arg] = [data[arg]]
|
|
isArray = true
|
|
}
|
|
|
|
var val
|
|
, la = args[i + 1]
|
|
|
|
var isBool = typeof no === 'boolean' ||
|
|
argType === Boolean ||
|
|
isTypeArray && argType.indexOf(Boolean) !== -1 ||
|
|
(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) &&
|
|
~argType.indexOf(Number) ) {
|
|
// number
|
|
val = +la
|
|
i ++
|
|
} else if ( !la.match(/^-[^-]/) && ~argType.indexOf(String) ) {
|
|
// string
|
|
val = la
|
|
i ++
|
|
}
|
|
}
|
|
|
|
if (isArray) (data[arg] = data[arg] || []).push(val)
|
|
else data[arg] = val
|
|
|
|
continue
|
|
}
|
|
|
|
if (argType === String) {
|
|
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)
|
|
}
|
|
}
|
|
|
|
function resolveShort (arg, shorthands, shortAbbr, abbrevs) {
|
|
// 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
|
|
var singles = shorthands.___singles
|
|
if (!singles) {
|
|
singles = Object.keys(shorthands).filter(function (s) {
|
|
return s.length === 1
|
|
}).reduce(function (l,r) {
|
|
l[r] = true
|
|
return l
|
|
}, {})
|
|
shorthands.___singles = singles
|
|
debug('shorthand singles', singles)
|
|
}
|
|
|
|
var chrs = arg.split("").filter(function (c) {
|
|
return singles[c]
|
|
})
|
|
|
|
if (chrs.join("") === arg) return chrs.map(function (c) {
|
|
return shorthands[c]
|
|
}).reduce(function (l, r) {
|
|
return 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]
|
|
}
|