Inital build

frontend/node_modules/combine-errors/index.js

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+'use strict'
+
+/**
+ * Module Dependencies
+ */
+
+var Custom = require('custom-error-instance')
+var uniq = require('lodash.uniqby')
+
+/**
+ * Use a custom error type
+ */
+
+var MultiError = Custom('MultiError')
+
+/**
+ * Export `Error`
+ */
+
+module.exports = error
+
+/**
+ * Initialize an error
+ */
+
+function error (errors) {
+  if (!(this instanceof error)) return new error(errors)
+  errors = Array.isArray(errors) ? errors : [ errors ]
+  errors = uniq(errors, function (err) { return err.stack })
+  if (errors.length === 1) return errors[0]
+  var multierror = new MultiError({
+    message: errors.map(function (err) { return err.message }).join('; '),
+    errors: errors.reduce(function (errs, err) { return errs.concat(err.errors || err) }, []),
+  })
+
+  // lazily get/set the stack
+  multierror.__defineGetter__('stack', function() {
+    return errors.map(function (err) { return err.stack }).join('\n\n')
+  })
+
+  multierror.__defineSetter__('stack', function(value) {
+    return [value].concat(multierror.stack).join('\n\n')
+  })
+
+  return multierror
+}