352 lines
9.7 KiB
JavaScript
352 lines
9.7 KiB
JavaScript
|
const objFilter = require('./obj-filter')
|
||
|
|
|
||
|
|
// validation-type-stuff, missing params,
|
||
|
|
// bad implications, custom checks.
|
||
|
|
module.exports = function (yargs, usage, y18n) {
|
||
|
|
const __ = y18n.__
|
||
|
|
const __n = y18n.__n
|
||
|
|
const self = {}
|
||
|
|
|
||
|
|
// validate appropriate # of non-option
|
||
|
|
// arguments were provided, i.e., '_'.
|
||
|
|
self.nonOptionCount = function (argv) {
|
||
|
|
const demandedCommands = yargs.getDemandedCommands()
|
||
|
|
// don't count currently executing commands
|
||
|
|
const _s = argv._.length - yargs.getContext().commands.length
|
||
|
|
|
||
|
|
if (demandedCommands._ && (_s < demandedCommands._.min || _s > demandedCommands._.max)) {
|
||
|
|
if (_s < demandedCommands._.min) {
|
||
|
|
if (demandedCommands._.minMsg !== undefined) {
|
||
|
|
usage.fail(
|
||
|
|
// replace $0 with observed, $1 with expected.
|
||
|
|
demandedCommands._.minMsg ? demandedCommands._.minMsg.replace(/\$0/g, _s).replace(/\$1/, demandedCommands._.min) : null
|
||
|
|
)
|
||
|
|
} else {
|
||
|
|
usage.fail(
|
||
|
|
__('Not enough non-option arguments: got %s, need at least %s', _s, demandedCommands._.min)
|
||
|
|
)
|
||
|
|
}
|
||
|
|
} else if (_s > demandedCommands._.max) {
|
||
|
|
if (demandedCommands._.maxMsg !== undefined) {
|
||
|
|
usage.fail(
|
||
|
|
// replace $0 with observed, $1 with expected.
|
||
|
|
demandedCommands._.maxMsg ? demandedCommands._.maxMsg.replace(/\$0/g, _s).replace(/\$1/, demandedCommands._.max) : null
|
||
|
|
)
|
||
|
|
} else {
|
||
|
|
usage.fail(
|
||
|
|
__('Too many non-option arguments: got %s, maximum of %s', _s, demandedCommands._.max)
|
||
|
|
)
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// validate the appropriate # of <required>
|
||
|
|
// positional arguments were provided:
|
||
|
|
self.positionalCount = function (required, observed) {
|
||
|
|
if (observed < required) {
|
||
|
|
usage.fail(
|
||
|
|
__('Not enough non-option arguments: got %s, need at least %s', observed, required)
|
||
|
|
)
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// make sure that any args that require an
|
||
|
|
// value (--foo=bar), have a value.
|
||
|
|
self.missingArgumentValue = function (argv) {
|
||
|
|
const defaultValues = [true, false, '']
|
||
|
|
const options = yargs.getOptions()
|
||
|
|
|
||
|
|
if (options.requiresArg.length > 0) {
|
||
|
|
const missingRequiredArgs = []
|
||
|
|
|
||
|
|
options.requiresArg.forEach(function (key) {
|
||
|
|
const value = argv[key]
|
||
|
|
|
||
|
|
// if a value is explicitly requested,
|
||
|
|
// flag argument as missing if it does not
|
||
|
|
// look like foo=bar was entered.
|
||
|
|
if (~defaultValues.indexOf(value) ||
|
||
|
|
(Array.isArray(value) && !value.length)) {
|
||
|
|
missingRequiredArgs.push(key)
|
||
|
|
}
|
||
|
|
})
|
||
|
|
|
||
|
|
if (missingRequiredArgs.length > 0) {
|
||
|
|
usage.fail(__n(
|
||
|
|
'Missing argument value: %s',
|
||
|
|
'Missing argument values: %s',
|
||
|
|
missingRequiredArgs.length,
|
||
|
|
missingRequiredArgs.join(', ')
|
||
|
|
))
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// make sure all the required arguments are present.
|
||
|
|
self.requiredArguments = function (argv) {
|
||
|
|
const demandedOptions = yargs.getDemandedOptions()
|
||
|
|
var missing = null
|
||
|
|
|
||
|
|
Object.keys(demandedOptions).forEach(function (key) {
|
||
|
|
if (!argv.hasOwnProperty(key)) {
|
||
|
|
missing = missing || {}
|
||
|
|
missing[key] = demandedOptions[key]
|
||
|
|
}
|
||
|
|
})
|
||
|
|
|
||
|
|
if (missing) {
|
||
|
|
const customMsgs = []
|
||
|
|
Object.keys(missing).forEach(function (key) {
|
||
|
|
const msg = missing[key].msg
|
||
|
|
if (msg && customMsgs.indexOf(msg) < 0) {
|
||
|
|
customMsgs.push(msg)
|
||
|
|
}
|
||
|
|
})
|
||
|
|
|
||
|
|
const customMsg = customMsgs.length ? '\n' + customMsgs.join('\n') : ''
|
||
|
|
|
||
|
|
usage.fail(__n(
|
||
|
|
'Missing required argument: %s',
|
||
|
|
'Missing required arguments: %s',
|
||
|
|
Object.keys(missing).length,
|
||
|
|
Object.keys(missing).join(', ') + customMsg
|
||
|
|
))
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// check for unknown arguments (strict-mode).
|
||
|
|
self.unknownArguments = function (argv, aliases) {
|
||
|
|
const aliasLookup = {}
|
||
|
|
const descriptions = usage.getDescriptions()
|
||
|
|
const demandedOptions = yargs.getDemandedOptions()
|
||
|
|
const commandKeys = yargs.getCommandInstance().getCommands()
|
||
|
|
const unknown = []
|
||
|
|
const currentContext = yargs.getContext()
|
||
|
|
|
||
|
|
Object.keys(aliases).forEach(function (key) {
|
||
|
|
aliases[key].forEach(function (alias) {
|
||
|
|
aliasLookup[alias] = key
|
||
|
|
})
|
||
|
|
})
|
||
|
|
|
||
|
|
Object.keys(argv).forEach(function (key) {
|
||
|
|
if (key !== '$0' && key !== '_' &&
|
||
|
|
!descriptions.hasOwnProperty(key) &&
|
||
|
|
!demandedOptions.hasOwnProperty(key) &&
|
||
|
|
!aliasLookup.hasOwnProperty(key)) {
|
||
|
|
unknown.push(key)
|
||
|
|
}
|
||
|
|
})
|
||
|
|
|
||
|
|
if (commandKeys.length > 0) {
|
||
|
|
argv._.slice(currentContext.commands.length).forEach(function (key) {
|
||
|
|
if (commandKeys.indexOf(key) === -1) {
|
||
|
|
unknown.push(key)
|
||
|
|
}
|
||
|
|
})
|
||
|
|
}
|
||
|
|
|
||
|
|
if (unknown.length > 0) {
|
||
|
|
usage.fail(__n(
|
||
|
|
'Unknown argument: %s',
|
||
|
|
'Unknown arguments: %s',
|
||
|
|
unknown.length,
|
||
|
|
unknown.join(', ')
|
||
|
|
))
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// validate arguments limited to enumerated choices
|
||
|
|
self.limitedChoices = function (argv) {
|
||
|
|
const options = yargs.getOptions()
|
||
|
|
const invalid = {}
|
||
|
|
|
||
|
|
if (!Object.keys(options.choices).length) return
|
||
|
|
|
||
|
|
Object.keys(argv).forEach(function (key) {
|
||
|
|
if (key !== '$0' && key !== '_' &&
|
||
|
|
options.choices.hasOwnProperty(key)) {
|
||
|
|
[].concat(argv[key]).forEach(function (value) {
|
||
|
|
// TODO case-insensitive configurability
|
||
|
|
if (options.choices[key].indexOf(value) === -1) {
|
||
|
|
invalid[key] = (invalid[key] || []).concat(value)
|
||
|
|
}
|
||
|
|
})
|
||
|
|
}
|
||
|
|
})
|
||
|
|
|
||
|
|
const invalidKeys = Object.keys(invalid)
|
||
|
|
|
||
|
|
if (!invalidKeys.length) return
|
||
|
|
|
||
|
|
var msg = __('Invalid values:')
|
||
|
|
invalidKeys.forEach(function (key) {
|
||
|
|
msg += '\n ' + __(
|
||
|
|
'Argument: %s, Given: %s, Choices: %s',
|
||
|
|
key,
|
||
|
|
usage.stringifiedValues(invalid[key]),
|
||
|
|
usage.stringifiedValues(options.choices[key])
|
||
|
|
)
|
||
|
|
})
|
||
|
|
usage.fail(msg)
|
||
|
|
}
|
||
|
|
|
||
|
|
// custom checks, added using the `check` option on yargs.
|
||
|
|
var checks = []
|
||
|
|
self.check = function (f) {
|
||
|
|
checks.push(f)
|
||
|
|
}
|
||
|
|
|
||
|
|
self.customChecks = function (argv, aliases) {
|
||
|
|
for (var i = 0, f; (f = checks[i]) !== undefined; i++) {
|
||
|
|
var result = null
|
||
|
|
try {
|
||
|
|
result = f(argv, aliases)
|
||
|
|
} catch (err) {
|
||
|
|
usage.fail(err.message ? err.message : err, err)
|
||
|
|
continue
|
||
|
|
}
|
||
|
|
|
||
|
|
if (!result) {
|
||
|
|
usage.fail(__('Argument check failed: %s', f.toString()))
|
||
|
|
} else if (typeof result === 'string' || result instanceof Error) {
|
||
|
|
usage.fail(result.toString(), result)
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// check implications, argument foo implies => argument bar.
|
||
|
|
var implied = {}
|
||
|
|
self.implies = function (key, value) {
|
||
|
|
if (typeof key === 'object') {
|
||
|
|
Object.keys(key).forEach(function (k) {
|
||
|
|
self.implies(k, key[k])
|
||
|
|
})
|
||
|
|
} else {
|
||
|
|
implied[key] = value
|
||
|
|
}
|
||
|
|
}
|
||
|
|
self.getImplied = function () {
|
||
|
|
return implied
|
||
|
|
}
|
||
|
|
|
||
|
|
self.implications = function (argv) {
|
||
|
|
const implyFail = []
|
||
|
|
|
||
|
|
Object.keys(implied).forEach(function (key) {
|
||
|
|
var num
|
||
|
|
const origKey = key
|
||
|
|
var value = implied[key]
|
||
|
|
|
||
|
|
// convert string '1' to number 1
|
||
|
|
num = Number(key)
|
||
|
|
key = isNaN(num) ? key : num
|
||
|
|
|
||
|
|
if (typeof key === 'number') {
|
||
|
|
// check length of argv._
|
||
|
|
key = argv._.length >= key
|
||
|
|
} else if (key.match(/^--no-.+/)) {
|
||
|
|
// check if key doesn't exist
|
||
|
|
key = key.match(/^--no-(.+)/)[1]
|
||
|
|
key = !argv[key]
|
||
|
|
} else {
|
||
|
|
// check if key exists
|
||
|
|
key = argv[key]
|
||
|
|
}
|
||
|
|
|
||
|
|
num = Number(value)
|
||
|
|
value = isNaN(num) ? value : num
|
||
|
|
|
||
|
|
if (typeof value === 'number') {
|
||
|
|
value = argv._.length >= value
|
||
|
|
} else if (value.match(/^--no-.+/)) {
|
||
|
|
value = value.match(/^--no-(.+)/)[1]
|
||
|
|
value = !argv[value]
|
||
|
|
} else {
|
||
|
|
value = argv[value]
|
||
|
|
}
|
||
|
|
|
||
|
|
if (key && !value) {
|
||
|
|
implyFail.push(origKey)
|
||
|
|
}
|
||
|
|
})
|
||
|
|
|
||
|
|
if (implyFail.length) {
|
||
|
|
var msg = __('Implications failed:') + '\n'
|
||
|
|
|
||
|
|
implyFail.forEach(function (key) {
|
||
|
|
msg += (' ' + key + ' -> ' + implied[key])
|
||
|
|
})
|
||
|
|
|
||
|
|
usage.fail(msg)
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
var conflicting = {}
|
||
|
|
self.conflicts = function (key, value) {
|
||
|
|
if (typeof key === 'object') {
|
||
|
|
Object.keys(key).forEach(function (k) {
|
||
|
|
self.conflicts(k, key[k])
|
||
|
|
})
|
||
|
|
} else {
|
||
|
|
conflicting[key] = value
|
||
|
|
}
|
||
|
|
}
|
||
|
|
self.getConflicting = function () {
|
||
|
|
return conflicting
|
||
|
|
}
|
||
|
|
|
||
|
|
self.conflicting = function (argv) {
|
||
|
|
var args = Object.getOwnPropertyNames(argv)
|
||
|
|
|
||
|
|
args.forEach(function (arg) {
|
||
|
|
if (conflicting[arg] && args.indexOf(conflicting[arg]) !== -1) {
|
||
|
|
usage.fail(__('Arguments %s and %s are mutually exclusive', arg, conflicting[arg]))
|
||
|
|
}
|
||
|
|
})
|
||
|
|
}
|
||
|
|
|
||
|
|
self.recommendCommands = function (cmd, potentialCommands) {
|
||
|
|
const distance = require('./levenshtein')
|
||
|
|
const threshold = 3 // if it takes more than three edits, let's move on.
|
||
|
|
potentialCommands = potentialCommands.sort(function (a, b) { return b.length - a.length })
|
||
|
|
|
||
|
|
var recommended = null
|
||
|
|
var bestDistance = Infinity
|
||
|
|
for (var i = 0, candidate; (candidate = potentialCommands[i]) !== undefined; i++) {
|
||
|
|
var d = distance(cmd, candidate)
|
||
|
|
if (d <= threshold && d < bestDistance) {
|
||
|
|
bestDistance = d
|
||
|
|
recommended = candidate
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if (recommended) usage.fail(__('Did you mean %s?', recommended))
|
||
|
|
}
|
||
|
|
|
||
|
|
self.reset = function (globalLookup) {
|
||
|
|
implied = objFilter(implied, function (k, v) {
|
||
|
|
return globalLookup[k]
|
||
|
|
})
|
||
|
|
checks = []
|
||
|
|
conflicting = {}
|
||
|
|
return self
|
||
|
|
}
|
||
|
|
|
||
|
|
var frozen
|
||
|
|
self.freeze = function () {
|
||
|
|
frozen = {}
|
||
|
|
frozen.implied = implied
|
||
|
|
frozen.checks = checks
|
||
|
|
frozen.conflicting = conflicting
|
||
|
|
}
|
||
|
|
self.unfreeze = function () {
|
||
|
|
implied = frozen.implied
|
||
|
|
checks = frozen.checks
|
||
|
|
conflicting = frozen.conflicting
|
||
|
|
frozen = undefined
|
||
|
|
}
|
||
|
|
|
||
|
|
return self
|
||
|
|
}
|