1 files changed, 64 insertions, 0 deletions
diff --git a/toolkit/components/normandy/metadata-script.js b/toolkit/components/normandy/metadata-script.js
new file mode 100644
index 0000000000..235c8b7a6a
--- /dev/null
+++ b/toolkit/components/normandy/metadata-script.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/. */
+
+/* eslint-env xpcshell */
+/* globals print, quit, arguments */
+const { RecipeRunner } = ChromeUtils.import(
+  "resource://normandy/lib/RecipeRunner.jsm"
+);
+
+if (arguments.length !== 1) {
+  print("Usage: capabilities-script.js OUTFILE");
+  quit(1);
+}
+
+main(...arguments);
+
+function resolvePath(path) {
+  let absPath = path;
+
+  if (Services.appinfo.OS === "WINNT") {
+    absPath = path = path.replace(/\//g, "\\");
+  }
+
+  if (!PathUtils.isAbsolute(path)) {
+    absPath = Services.dirsvc.get("CurWorkD", Ci.nsIFile).path;
+
+    const components = PathUtils.splitRelative(path, {
+      allowEmpty: true,
+      allowParentDir: true,
+      allowCurrentDir: true,
+    }).filter(c => c.length);
+
+    for (const component of components) {
+      switch (component) {
+        case ".":
+          break;
+
+        case "..":
+          absPath = PathUtils.parent(absPath);
+          break;
+
+        default:
+          absPath = PathUtils.join(absPath, component);
+      }
+    }
+  }
+
+  return absPath;
+}
+
+async function main(outPath) {
+  const capabililitySet = RecipeRunner.getCapabilities();
+  await IOUtils.writeUTF8(
+    resolvePath(outPath),
+    JSON.stringify(
+      {
+        capabilities: Array.from(capabililitySet),
+      },
+      null,
+      4
+    )
+  );
+}