1 files changed, 64 insertions, 0 deletions
diff --git a/mobile/android/.eslintrc.js b/mobile/android/.eslintrc.js
new file mode 100644
index 0000000000..9668e4feb7
--- /dev/null
+++ b/mobile/android/.eslintrc.js
@@ -0,0 +1,64 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+"use strict";
+
+module.exports = {
+  overrides: [
+    {
+      files: [
+        // Bug 1425048 - mainly going away, see bug 1583370.
+        "components/extensions/**",
+      ],
+      rules: {
+        "no-unused-vars": "off",
+        "no-undef": "off",
+      },
+    },
+    {
+      files: [
+        "chrome/geckoview/**",
+        "components/geckoview/**",
+        "modules/geckoview/**",
+        "actors/**",
+      ],
+      rules: {
+        "no-unused-vars": [
+          "error",
+          {
+            args: "none",
+            vars: "local",
+            varsIgnorePattern: "(debug|warn)",
+          },
+        ],
+        "no-restricted-syntax": [
+          "error",
+          {
+            selector: `CallExpression > \
+                         Identifier.callee[name = /^debug$|^warn$/]`,
+            message:
+              "Use debug and warn with template literals, e.g. debug `foo`;",
+          },
+          {
+            selector: `BinaryExpression[operator = '+'] > \
+                         TaggedTemplateExpression.left > \
+                         Identifier.tag[name = /^debug$|^warn$/]`,
+            message:
+              "Use only one template literal with debug/warn instead of concatenating multiple expressions,\n" +
+              "    e.g. (debug `foo ${42} bar`) instead of (debug `foo` + 42 + `bar`)",
+          },
+          {
+            selector: `TaggedTemplateExpression[tag.type = 'Identifier'][tag.name = /^debug$|^warn$/] > \
+                         TemplateLiteral.quasi CallExpression > \
+                         MemberExpression.callee[object.type = 'Identifier'][object.name = 'JSON'] > \
+                         Identifier.property[name = 'stringify']`,
+            message:
+              "Don't call JSON.stringify within debug/warn literals,\n" +
+              "    e.g. (debug `foo=${foo}`) instead of (debug `foo=${JSON.stringify(foo)}`)",
+          },
+        ],
+      },
+    },
+  ],
+};