Don’t warn about eslint-plugin-prettier rules if prettier/prettier is…

… off

bin/cli.js

@@ -84,17 +84,19 @@ function processRules(configRules) {
     (ruleName, value) => value === 0 && !(ruleName in validators)
   );
 
-  const flaggedRules = configRules
+  const enabledRules = configRules
     .map(([ruleName, value, source]) => {
       const arrayValue = Array.isArray(value) ? value : [value];
       const [level, ...options] = arrayValue;
       const isOff = level === "off" || level === 0;
-      return !isOff && ruleName in allRules
-        ? { ruleName, options, source }
-        : null;
+      return isOff ? null : { ruleName, options, source };
     })
     .filter(Boolean);
 
+  const flaggedRules = enabledRules.filter(
+    ({ ruleName }) => ruleName in allRules
+  );
+
   const regularFlaggedRuleNames = filterRuleNames(
     flaggedRules,
     (ruleName) => ruleName in regularRules
@@ -103,7 +105,7 @@ function processRules(configRules) {
     flaggedRules,
     (ruleName, options, source) =>
       ruleName in optionsRules &&
-      !validators[ruleName](options, source, configRules)
+      !validators[ruleName](options, source, enabledRules)
   );
   const specialFlaggedRuleNames = filterRuleNames(
     flaggedRules,

bin/validators.js

@@ -66,9 +66,9 @@ module.exports = {
   },
 };
 
-function checkEslintConfigPrettier(_options, source, rules) {
-  return !rules.some(
-    ([name, _options2, source2]) =>
-      name === "prettier/prettier" && source === source2
+function checkEslintConfigPrettier(_options, currentSource, enabledRules) {
+  return !enabledRules.some(
+    ({ ruleName, source }) =>
+      ruleName === "prettier/prettier" && currentSource === source
   );
 }

test/cli.test.js

@@ -193,3 +193,18 @@ test("eslint-plugin-prettier no warnings because different sources", () => {
     }
   `);
 });
+
+test("eslint-plugin-prettier no warnings because the rule is off", () => {
+  expect(
+    cli.processRules([
+      ["prettier/prettier", [0, {}], "test-source.js"],
+      ["arrow-body-style", "error", "test-source.js"],
+      ["prefer-arrow-callback", "error", "test-source.js"],
+    ])
+  ).toMatchInlineSnapshot(`
+    Object {
+      "code": 0,
+      "stdout": "No rules that are unnecessary or conflict with Prettier were found.",
+    }
+  `);
+});