Transition to monorepo on a new Dev branch

App/Source/node_modules/yargs/lib/validation.js

@@ -0,0 +1,196 @@
+// validation-type-stuff, missing params,
+// bad implications, custom checks.
+module.exports = function (yargs, usage) {
+  var self = {}
+
+  // validate appropriate # of non-option
+  // arguments were provided, i.e., '_'.
+  self.nonOptionCount = function (argv) {
+    var demanded = yargs.getDemanded()
+
+    if (demanded._ && argv._.length < demanded._.count) {
+      if (demanded._.msg !== undefined) {
+        usage.fail(demanded._.msg)
+      } else {
+        usage.fail('Not enough non-option arguments: got '
+          + argv._.length + ', need at least ' + demanded._.count
+        )
+      }
+    }
+  }
+
+  // make sure that any args that require an
+  // value (--foo=bar), have a value.
+  self.missingArgumentValue = function (argv) {
+    var options = yargs.getOptions(),
+      defaultValues = [true, false, '']
+
+    if (options.requiresArg.length > 0) {
+      var missingRequiredArgs = []
+
+      options.requiresArg.forEach(function (key) {
+        var 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 === 1) {
+        usage.fail('Missing argument value: ' + missingRequiredArgs[0])
+      } else if (missingRequiredArgs.length > 1) {
+        var message = 'Missing argument values: ' + missingRequiredArgs.join(', ')
+        usage.fail(message)
+      }
+    }
+  }
+
+  // make sure all the required arguments are present.
+  self.requiredArguments = function (argv) {
+    var demanded = yargs.getDemanded(),
+      missing = null
+
+    Object.keys(demanded).forEach(function (key) {
+      if (!argv.hasOwnProperty(key)) {
+        missing = missing || {}
+        missing[key] = demanded[key]
+      }
+    })
+
+    if (missing) {
+      var customMsgs = []
+      Object.keys(missing).forEach(function (key) {
+        var msg = missing[key].msg
+        if (msg && customMsgs.indexOf(msg) < 0) {
+          customMsgs.push(msg)
+        }
+      })
+
+      var customMsg = customMsgs.length ? '\n' + customMsgs.join('\n') : ''
+      usage.fail('Missing required arguments: ' + Object.keys(missing).join(', ') + customMsg)
+    }
+  }
+
+  // check for unknown arguments (strict-mode).
+  self.unknownArguments = function (argv, aliases) {
+    var descriptions = usage.getDescriptions(),
+      demanded = yargs.getDemanded(),
+      unknown = [],
+      aliasLookup = {}
+
+    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) &&
+        !demanded.hasOwnProperty(key) &&
+        !aliasLookup.hasOwnProperty(key)) {
+        unknown.push(key)
+      }
+    })
+
+    if (unknown.length === 1) {
+      usage.fail('Unknown argument: ' + unknown[0])
+    } else if (unknown.length > 1) {
+      usage.fail('Unknown arguments: ' + unknown.join(', '))
+    }
+  }
+
+  // custom checks, added using the `check` option on yargs.
+  var checks = []
+  self.check = function (f) {
+    checks.push(f)
+  }
+
+  self.customChecks = function (argv, aliases) {
+    checks.forEach(function (f) {
+      try {
+        var result = f(argv, aliases)
+        if (!result) {
+          usage.fail('Argument check failed: ' + f.toString())
+        } else if (typeof result === 'string') {
+          usage.fail(result)
+        }
+      } catch (err) {
+        usage.fail(err.message ? err.message : err)
+      }
+    })
+  }
+
+  // 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) {
+    var implyFail = []
+
+    Object.keys(implied).forEach(function (key) {
+      var num,
+        origKey = key,
+        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)
+    }
+  }
+
+  return self
+}