Extension: Add debug mode

src/debug.js

@@ -0,0 +1,16 @@
+// SPDX-FileCopyrightText: 2022 Romain Vigier <contact AT romainvigier.fr>
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+const { extensionUtils } = imports.misc;
+
+const Me = extensionUtils.getCurrentExtension();
+
+/**
+ * Print a message in debug builds.
+ *
+ * @param  {string} msg Message to print.
+ */
+function message(msg) {
+    if ('@BUILD_TYPE@' === 'debug') // eslint-disable-line no-constant-condition
+        console.log(`[${Me.metadata.name}] ${msg}`);
+}