Add ruleArguments mapping to indent converter (#255)

Author: jeremyyap

src/rules/converters/indent.ts

@@ -1,10 +1,19 @@
 import { RuleConverter } from "../converter";
 
-export const convertIndent: RuleConverter = () => {
+export const convertIndent: RuleConverter = tslintRule => {
+    let indentSize: number | string = 4; // @typescript-eslint/indent default
+
+    if (tslintRule.ruleArguments[0] === "tabs") {
+        indentSize = "tabs";
+    } else if (tslintRule.ruleArguments[1] === 2) {
+        indentSize = 2;
+    }
+
     return {
         rules: [
             {
                 ruleName: "@typescript-eslint/indent",
+                ...(indentSize !== 4 && { ruleArguments: [indentSize] }),
             },
         ],
     };

src/rules/converters/tests/indent.test.ts

@@ -14,4 +14,48 @@ describe(convertIndent, () => {
             ],
         });
     });
+
+    test("conversion with 2 spaces", () => {
+        const result = convertIndent({
+            ruleArguments: ["spaces", 2],
+        });
+
+        expect(result).toEqual({
+            rules: [
+                {
+                    ruleName: "@typescript-eslint/indent",
+                    ruleArguments: [2],
+                },
+            ],
+        });
+    });
+
+    test("conversion with 4 spaces", () => {
+        const result = convertIndent({
+            ruleArguments: ["spaces", 4],
+        });
+
+        expect(result).toEqual({
+            rules: [
+                {
+                    ruleName: "@typescript-eslint/indent",
+                },
+            ],
+        });
+    });
+
+    test("conversion with tabs", () => {
+        const result = convertIndent({
+            ruleArguments: ["tabs", 4],
+        });
+
+        expect(result).toEqual({
+            rules: [
+                {
+                    ruleName: "@typescript-eslint/indent",
+                    ruleArguments: ["tabs"],
+                },
+            ],
+        });
+    });
 });