1 files changed, 37 insertions, 0 deletions
diff --git a/platform/android/MapboxGLAndroidSDKRenderTest/scripts/definitions/globals.js b/platform/android/MapboxGLAndroidSDKRenderTest/scripts/definitions/globals.js
new file mode 100644
index 0000000000..6b215ea84d
--- /dev/null
+++ b/platform/android/MapboxGLAndroidSDKRenderTest/scripts/definitions/globals.js
@@ -0,0 +1,37 @@
+import fs from 'fs';
+import path from 'path';
+
+// Write out a list of files that this script is modifying so that we can check
+var files = [];
+process.on('exit', function() {
+    const list = path.join(path.dirname(process.argv[1]), path.basename(process.argv[1], '.js') + '.list');
+    fs.writeFileSync(list, files.join('\n'));
+});
+
+export function writeIfModified(filename, newContent) {
+    ensureDirectoryExistence(filename);
+    files.push(filename);
+    try {
+        const oldContent = fs.readFileSync(filename, 'utf8');
+        if (oldContent == newContent) {
+            console.warn(`* Skipping file '${filename}' because it is up-to-date`);
+            return;
+        }
+    } catch(err) {
+        console.log(err);
+    }
+    
+    if (['0', 'false'].indexOf(process.env.DRY_RUN || '0') !== -1) {
+        fs.writeFileSync(filename, newContent);
+    }
+    console.warn(`* Updating outdated file '${filename}'`);
+}
+
+function ensureDirectoryExistence(filePath) {
+  var dirname = path.dirname(filePath);
+  if (fs.existsSync(dirname)) {
+    return true;
+  }
+  ensureDirectoryExistence(dirname);
+  fs.mkdirSync(dirname);
+}
+\ No newline at end of file