perf: check default paths first when running on Mac (#209)

src/chrome-finder.ts

@@ -18,6 +18,17 @@ const newLineRegex = /\r?\n/;
 
 type Priorities = Array<{regex: RegExp, weight: number}>;
 
+/**
+ * check for MacOS default app paths
+ */
+function getDarwinDefaultInstallations(): string[] {
+  // list of the possibilities in priority order
+  return [
+    '/Applications/Google Chrome.app/Contents/MacOS/Google Chrome',
+    '/Applications/Google Chrome Canary.app/Contents/MacOS/Google Chrome Canary'
+  ].filter((path) => canAccess(path));
+}
+
 export function darwin() {
   const suffixes = ['/Contents/MacOS/Google Chrome Canary', '/Contents/MacOS/Google Chrome'];
 
@@ -32,6 +43,19 @@ export function darwin() {
     installations.push(customChromePath);
   }
 
+  const defaultPaths = getDarwinDefaultInstallations()
+  if (defaultPaths.length) {
+    installations.push(...defaultPaths);
+  }
+
+  /**
+   * don't do expensive lsregister dump if we have already found
+   * a Chrome app by now
+   */
+  if (installations.length) {
+    return installations
+  }
+
   execSync(
       `${LSREGISTER} -dump` +
       ' | grep -i \'google chrome\\( canary\\)\\?\\.app\'' +