From 211a8f19f72dc09ce2f91f609258415be8bd3e2c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E5=94=AF=E7=84=B6?= <weiran.zsd@outlook.com>
Date: Mon, 25 Jul 2022 11:38:56 +0800
Subject: [PATCH] fix: use xo-typescript for ts files

---
 lib/init/config-initializer.js   | 68 ++++++++++++++++++--------------
 tests/init/config-initializer.js | 11 ++++++
 2 files changed, 49 insertions(+), 30 deletions(-)

diff --git a/lib/init/config-initializer.js b/lib/init/config-initializer.js
index 9dcd314d..8219ca69 100644
--- a/lib/init/config-initializer.js
+++ b/lib/init/config-initializer.js
@@ -97,21 +97,29 @@ function getModulesList(config, installESLint) {
             modules[moduleName] = "latest";
         }
     }
-    if (config.extends) {
-        const extendList = Array.isArray(config.extends) ? config.extends : [config.extends];
 
-        for (const extend of extendList) {
-            if (extend.startsWith("eslint:") || extend.startsWith("plugin:")) {
-                continue;
-            }
-            const moduleName = naming.normalizePackageName(extend, "eslint-config");
+    const extendList = [];
+    const overrides = config.overrides || [];
 
-            modules[moduleName] = "latest";
-            Object.assign(
-                modules,
-                getPeerDependencies(`${moduleName}@latest`)
-            );
+    for (const item of [config, ...overrides]) {
+        if (typeof item.extends === "string") {
+            extendList.push(item.extends);
+        } else if (Array.isArray(item.extends)) {
+            extendList.push(...item.extends);
+        }
+    }
+
+    for (const extend of extendList) {
+        if (extend.startsWith("eslint:") || extend.startsWith("plugin:")) {
+            continue;
         }
+        const moduleName = naming.normalizePackageName(extend, "eslint-config");
+
+        modules[moduleName] = "latest";
+        Object.assign(
+            modules,
+            getPeerDependencies(`${moduleName}@latest`)
+        );
     }
 
     const parser = config.parser || (config.parserOptions && config.parserOptions.parser);
@@ -146,7 +154,8 @@ function processAnswers(answers) {
         rules: {},
         env: {},
         parserOptions: {},
-        extends: []
+        extends: [],
+        overrides: []
     };
 
     config.parserOptions.ecmaVersion = "latest";
@@ -184,6 +193,22 @@ function processAnswers(answers) {
         }
     }
 
+    // set config.extends based the selected guide
+    if (answers.source === "guide") {
+        if (answers.styleguide === "airbnb" && answers.framework !== "react") {
+            config.extends.push("airbnb-base");
+        } else if (answers.styleguide === "xo-typescript") {
+            config.extends.push("xo");
+            config.overrides.push({
+                files: ["*.ts", "*.tsx"],
+                extends: ["xo-typescript"]
+            });
+        } else {
+            config.extends.push(answers.styleguide);
+        }
+    }
+
+
     // setup rules based on problems/style enforcement preferences
     if (answers.purpose === "problems") {
         config.extends.unshift("eslint:recommended");
@@ -490,25 +515,8 @@ function promptUser() {
             if (earlyAnswers.installESLint === false && !semver.satisfies(earlyAnswers.localESLintVersion, earlyAnswers.requiredESLintVersionRange)) {
                 info(`Note: it might not work since ESLint's version is mismatched with the ${earlyAnswers.styleguide} config.`);
             }
-            if (earlyAnswers.styleguide === "airbnb" && earlyAnswers.framework !== "react") {
-                earlyAnswers.styleguide = "airbnb-base";
-            }
-            if (earlyAnswers.styleguide === "xo-typescript") {
-                earlyAnswers.styleguide = ["xo", "xo-typescript"];
-            }
-
 
             const config = processAnswers(earlyAnswers);
-            const styleguide = Array.isArray(earlyAnswers.styleguide) ? earlyAnswers.styleguide : [earlyAnswers.styleguide];
-
-            if (Array.isArray(config.extends)) {
-                config.extends.push(...styleguide);
-            } else if (config.extends) {
-                config.extends = [config.extends, ...styleguide];
-            } else {
-                config.extends = [...styleguide];
-            }
-
             const modules = getModulesList(config);
 
             return askInstallModules(modules)
diff --git a/tests/init/config-initializer.js b/tests/init/config-initializer.js
index 2cf086ed..4329ded3 100644
--- a/tests/init/config-initializer.js
+++ b/tests/init/config-initializer.js
@@ -272,6 +272,17 @@ describe("configInitializer", () => {
                 assert.include(modules, "eslint-config-xo@latest");
             });
 
+            it("should support the xo-typescript style guide", () => {
+                const config = { extends: "xo", overrides: [{ files: ["*.ts"], extends: ["xo-typescript"] }] };
+                const modules = init.getModulesList(config);
+
+                assert.deepStrictEqual(config.extends, "xo");
+                assert.deepStrictEqual(config.overrides[0].extends[0], "xo-typescript");
+                assert.strictEqual(config.installedESLint, true);
+                assert.include(modules, "eslint-config-xo@latest");
+                assert.include(modules, "eslint-config-xo-typescript@latest");
+            });
+
             it("should install required sharable config", () => {
                 const config = { extends: "google" };