fix: use npm exec instead of npm run if no tauri script can be detected (#1174)

.changes/npm-exec.md

@@ -0,0 +1,5 @@
+---
+action: patch
+---
+
+Use `npm exec` instead of `npm run` if `@tauri-apps/cli` was detected with no `tauri` script in `package.json`.

src/runner.ts

@@ -1,6 +1,7 @@
 import {
   execCommand,
   hasDependency,
+  hasTauriScript,
   retry,
   usesBun,
   usesPnpm,
@@ -25,15 +26,7 @@ class Runner {
     env?: Record<string, string>,
     retryAttempts: number = 0,
   ): Promise<void> {
-    const args: string[] = [];
-
-    if (this.bin === 'npm' && this.tauriScript[0] !== 'run') {
-      args.push('run');
-    }
-
-    args.push(...this.tauriScript);
-
-    args.push(...command);
+    const args = [...this.tauriScript, ...command];
 
     if (this.bin === 'npm' && commandOptions.length) {
       args.push('--');
@@ -62,9 +55,13 @@ async function getRunner(
     if (usesYarn(root)) return new Runner('yarn', ['tauri']);
     if (usesPnpm(root)) return new Runner('pnpm', ['tauri']);
     if (usesBun(root)) return new Runner('bun', ['tauri']);
-    return new Runner('npm', ['run', 'tauri']);
+    return new Runner('npm', [hasTauriScript(root) ? 'run' : 'exec', 'tauri']);
   }
 
+  console.warn(
+    'Could not detect `@tauri-apps/cli` installation. Proceeding to install global npm package...',
+  );
+
   await execCommand('npm', ['install', '-g', `@tauri-apps/cli@v2`], {
     cwd: undefined,
   });

src/utils.ts

@@ -345,6 +345,16 @@ export function hasDependency(dependencyName: string, root: string): boolean {
   );
 }
 
+export function hasTauriScript(root: string): boolean {
+  // eslint-disable-next-line @typescript-eslint/no-unsafe-assignment
+  const packageJson = getPackageJson(root);
+  return (
+    !!packageJson &&
+    // eslint-disable-next-line @typescript-eslint/no-unsafe-member-access
+    !!packageJson.scripts?.['tauri']
+  );
+}
+
 export function usesYarn(root: string): boolean {
   return existsSync(join(root, 'yarn.lock'));
 }