Copy bundle and source map files to a specific build folder

Author: fluiddot

WordPress/build.gradle

@@ -719,3 +719,20 @@ if (project.hasProperty("debugStoreFile")) {
         }
     }
 }
+
+// Copy React Native JavaScript bundle and source map so they can be upload it to the Crash logging
+// service during the build process.
+android {
+    applicationVariants.all { variant ->
+        variant.mergeAssetsProvider.configure {
+            doLast {
+                // Copy bundle and source map files
+                copy {
+                    from(outputDir)
+                    into("${buildDir}/react-native-bundle-source-map")
+                    include("*.bundle", "*.bundle.map")
+                }
+            }
+        }
+    }
+}

fastlane/lanes/build.rb

@@ -388,25 +388,20 @@ def upload_gutenberg_sourcemaps(app:, flavor:, build_type:, release_version:)
     # The format is: <app><flavor><build_type>
     # E.g.: jetpackJalapenoDebug
     build_asset_folder_name = "#{app.downcase}#{flavor}#{build_type}"
-    bundle_source_map_path = File.join(PROJECT_ROOT_FOLDER, 'WordPress', 'build', 'intermediates', 'assets', build_asset_folder_name)
-
-    Dir.mktmpdir do |sourcemaps_folder|
-      # It's important that the bundle and source map files have specific names, otherwise, Sentry won't symbolicate the stack traces.
-      FileUtils.cp(File.join(bundle_source_map_path, 'index.android.bundle'), File.join(sourcemaps_folder, 'index.android.bundle'))
-      FileUtils.cp(File.join(bundle_source_map_path, 'index.android.bundle.map'), File.join(sourcemaps_folder, 'index.android.bundle.map'))
-
-      sentry_upload_sourcemap(
-        auth_token: sentry_token,
-        org_slug: org_slug,
-        project_slug: project_slug,
-        version: release_version,
-        dist: current_build_code,
-        # When the React native bundle is generated, the source map file references include the local machine path;
-        # With the `rewrite` and `strip_common_prefix` options, Sentry automatically strips this part.
-        rewrite: true,
-        strip_common_prefix: true,
-        sourcemap: sourcemaps_folder
-      )
-    end
+    # Bundle and source map files are copied to a specific folder as part of the build process.
+    bundle_source_map_path = File.join(PROJECT_ROOT_FOLDER, 'WordPress', 'build', 'react-native-bundle-source-map')
+
+    sentry_upload_sourcemap(
+      auth_token: sentry_token,
+      org_slug: org_slug,
+      project_slug: project_slug,
+      version: release_version,
+      dist: current_build_code,
+      # When the React native bundle is generated, the source map file references include the local machine path;
+      # With the `rewrite` and `strip_common_prefix` options, Sentry automatically strips this part.
+      rewrite: true,
+      strip_common_prefix: true,
+      sourcemap: bundle_source_map_path
+    )
   end
 end