ITMS-91061 - privacy manifest for Charts framework (#666)

Author: luborjurena

Podfile

@@ -33,4 +33,36 @@ post_install do |installer|
       File.write(transformer, code.sub(original, patched))
     end
   end
+
+  # Inject a privacy manifest into the Charts framework (ITMS-91061).
+  # Charts 4.1.0 ships no PrivacyInfo.xcprivacy; it collects no data, performs
+  # no tracking, and uses no required-reason APIs, so this is a negative
+  # declaration. Re-applied here because `pod install` regenerates the project.
+  charts_manifest = <<~XML
+    <?xml version="1.0" encoding="UTF-8"?>
+    <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+    <plist version="1.0">
+    <dict>
+    \t<key>NSPrivacyTracking</key>
+    \t<false/>
+    \t<key>NSPrivacyTrackingDomains</key>
+    \t<array/>
+    \t<key>NSPrivacyCollectedDataTypes</key>
+    \t<array/>
+    \t<key>NSPrivacyAccessedAPITypes</key>
+    \t<array/>
+    </dict>
+    </plist>
+  XML
+
+  manifest_path = installer.sandbox.root + 'Charts/PrivacyInfo.xcprivacy'
+  File.write(manifest_path, charts_manifest)
+
+  charts_target = installer.pods_project.targets.find { |t| t.name == 'Charts' }
+  if charts_target
+    file_ref = installer.pods_project.new_file(manifest_path.to_s)
+    already_added = charts_target.resources_build_phase.files_references.include?(file_ref)
+    charts_target.resources_build_phase.add_file_reference(file_ref) unless already_added
+    installer.pods_project.save
+  end
 end