1 files changed, 51 insertions, 0 deletions
diff --git a/tools/lint/eslint/eslint-plugin-mozilla/lib/rules/import-headjs-globals.js b/tools/lint/eslint/eslint-plugin-mozilla/lib/rules/import-headjs-globals.js
new file mode 100644
index 0000000000..2566b3cec0
--- /dev/null
+++ b/tools/lint/eslint/eslint-plugin-mozilla/lib/rules/import-headjs-globals.js
@@ -0,0 +1,51 @@
+/**
+ * @fileoverview Import globals from head.js and from any files that were
+ * imported by head.js (as far as we can correctly resolve the path).
+ *
+ * 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";
+
+var fs = require("fs");
+var helpers = require("../helpers");
+var globals = require("../globals");
+
+function importHead(context, path, node) {
+  try {
+    let stats = fs.statSync(path);
+    if (!stats.isFile()) {
+      return;
+    }
+  } catch (e) {
+    return;
+  }
+
+  let newGlobals = globals.getGlobalsForFile(path);
+  helpers.addGlobals(newGlobals, context.getScope());
+}
+
+module.exports = {
+  // This rule currently has no messages.
+  // eslint-disable-next-line eslint-plugin/prefer-message-ids
+  meta: {
+    docs: {
+      url: "https://firefox-source-docs.mozilla.org/code-quality/lint/linters/eslint-plugin-mozilla/import-headjs-globals.html",
+    },
+    schema: [],
+    type: "problem",
+  },
+
+  create(context) {
+    return {
+      Program(node) {
+        let heads = helpers.getTestHeadFiles(context);
+        for (let head of heads) {
+          importHead(context, head, node);
+        }
+      },
+    };
+  },
+};