fix: bun error on calling jsr add twice (#36)

* fix: second `jsr add` fails

* refactor: use regexp

* feat: add test code

* chore: format code

src/commands.ts

@@ -52,7 +52,7 @@ export async function setupBunfigToml(dir: string) {
   const msg = `Setting up ${BUNFIG_FILE}`;
   try {
     let content = await fs.promises.readFile(bunfigPath, "utf-8");
-    if (!/^"@myorg1"\s+=/gm.test(content)) {
+    if (!/^"@jsr"\s+=/gm.test(content)) {
       content += JSR_BUNFIG;
       await wrapWithStatus(msg, async () => {
         await fs.promises.writeFile(bunfigPath, content);

test/commands.test.ts

@@ -300,6 +300,19 @@ describe("install", () => {
         },
       );
     });
+    it("jsr add --bun @std/[email protected] - forces bun for twice", async () => {
+      await withTempEnv(
+        ["i", "--bun", "@std/[email protected]"],
+        async (_, dir) => {
+          await runJsr(["i", "--bun", "@std/[email protected]"], dir);
+          const config = await fs.promises.readFile(
+            path.join(dir, "bunfig.toml"),
+            "utf-8",
+          );
+          assert.match(config, /"@jsr"\s+=/, "bunfig.toml not created");
+        },
+      );
+    });
   }
 
   describe("env detection", () => {