Fix create command with template prefixed with @ char #6007 (#6013)

* fix create command with template prefixed with @ char

* add typescript test for create command

* format test

2 files changed, 33 insertions, 1 deletions

diff --git a/src/cli/bunx_command.zig b/src/cli/bunx_command.zig
index 05d7d70df..2643d33a6 100644
--- a/src/cli/bunx_command.zig
+++ b/src/cli/bunx_command.zig
@@ -23,7 +23,8 @@ pub const BunxCommand = struct {
 
         var new_str = try allocator.allocSentinel(u8, input.len + prefixLength, 0);
         if (input[0] == '@') {
-            if (strings.indexAnyComptime(input, "/")) |index| {
+            if (strings.indexAnyComptime(input, "/")) |slashIndex| {
+                const index = slashIndex + 1;
                 @memcpy(new_str[0..index], input[0..index]);
                 @memcpy(new_str[index .. index + prefixLength], "create-");
                 @memcpy(new_str[index + prefixLength ..], input[index..]);
diff --git a/test/cli/install/bun-create.test.ts b/test/cli/install/bun-create.test.ts
new file mode 100644
index 000000000..af8d16d1d
--- /dev/null
+++ b/test/cli/install/bun-create.test.ts
@@ -0,0 +1,31 @@
+import { spawn } from "bun";
+import { afterEach, beforeEach, expect, it } from "bun:test";
+import { bunExe, bunEnv as env } from "harness";
+import { mkdtemp, realpath, rm, writeFile } from "fs/promises";
+import { tmpdir } from "os";
+import { join } from "path";
+
+let x_dir: string;
+
+beforeEach(async () => {
+  x_dir = await realpath(await mkdtemp(join(tmpdir(), "bun-x.test")));
+});
+afterEach(async () => {
+  await rm(x_dir, { force: true, recursive: true });
+});
+
+it("should create selected template with @ prefix", async () => {
+  const { stdout, stderr, exited } = spawn({
+    cmd: [bunExe(), "create", "@quick-start/some-template"],
+    cwd: x_dir,
+    stdout: null,
+    stdin: "pipe",
+    stderr: "pipe",
+    env,
+  });
+
+  const err = await new Response(stderr).text();
+  expect(err.split(/\r?\n/)).toContain(
+    `error: package "@quick-start/create-some-template" not found registry.npmjs.org/@quick-start%2fcreate-some-template 404`,
+  );
+});