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node_modules/eslint-config-airbnb/whitespace-async.js

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+#!/usr/bin/env node
+
+const assign = require('object.assign');
+const entries = require('object.entries');
+const { ESLint } = require('eslint');
+
+const baseConfig = require('.');
+const whitespaceRules = require('./whitespaceRules');
+
+const severities = ['off', 'warn', 'error'];
+
+function getSeverity(ruleConfig) {
+  if (Array.isArray(ruleConfig)) {
+    return getSeverity(ruleConfig[0]);
+  }
+  if (typeof ruleConfig === 'number') {
+    return severities[ruleConfig];
+  }
+  return ruleConfig;
+}
+
+async function onlyErrorOnRules(rulesToError, config) {
+  const errorsOnly = assign({}, config);
+  const cli = new ESLint({
+    useEslintrc: false,
+    baseConfig: config
+  });
+  const baseRules = (await cli.calculateConfigForFile(require.resolve('./'))).rules;
+
+  entries(baseRules).forEach((rule) => {
+    const ruleName = rule[0];
+    const ruleConfig = rule[1];
+    const severity = getSeverity(ruleConfig);
+
+    if (rulesToError.indexOf(ruleName) === -1 && severity === 'error') {
+      if (Array.isArray(ruleConfig)) {
+        errorsOnly.rules[ruleName] = ['warn'].concat(ruleConfig.slice(1));
+      } else if (typeof ruleConfig === 'number') {
+        errorsOnly.rules[ruleName] = 1;
+      } else {
+        errorsOnly.rules[ruleName] = 'warn';
+      }
+    }
+  });
+
+  return errorsOnly;
+}
+
+onlyErrorOnRules(whitespaceRules, baseConfig).then((config) => console.log(JSON.stringify(config)));