[No QA] Strip debug symbols from production iOS binaries

cspell.json

@@ -138,6 +138,7 @@
         "cocoapods",
         "Codat",
         "codegen",
+        "codesign",
         "codeshare",
         "Codice",
         "Combustors",

ios/NewExpensify.xcodeproj/project.pbxproj

@@ -375,6 +375,7 @@
 				00DD1BFF1BD5951E006B06BC /* Bundle React Native code and images */,
 				498240F82C49553900C15857 /* Run Fullstory Asset Uploader */,
 				5124824122A346BD617AD428 /* [CP] Embed Pods Frameworks */,
+				87174A5CC3CF40CC94B76870 /* Strip Debug Symbols */,
 				D687A4E020266C9380167930 /* [CP] Copy Pods Resources */,
 				072FAC2AE1685E6A5862C00A /* [CP-User] [RNFB] Core Configuration */,
 			);
@@ -585,6 +586,25 @@
 			shellPath = /bin/sh;
 			shellScript = "if [ \"$CONFIGURATION\" != \"DebugDevelopment\" ]; then\n  \"${PODS_ROOT}/FullStory/tools/FullStoryCommandLine\" \"${CONFIGURATION_BUILD_DIR}/${WRAPPER_NAME}\"\nelse\n  echo \"Skipping FullStory Asset Uploader phase for DebugDevelopment scheme.\"\nfi\n";
 		};
+		87174A5CC3CF40CC94B76870 /* Strip Debug Symbols */ = {
+			isa = PBXShellScriptBuildPhase;
+			alwaysOutOfDate = 1;
+			buildActionMask = 2147483647;
+			files = (
+			);
+			inputFileListPaths = (
+			);
+			inputPaths = (
+			);
+			name = "Strip Debug Symbols";
+			outputFileListPaths = (
+			);
+			outputPaths = (
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+			shellPath = /bin/sh;
+			shellScript = "bash \"${PROJECT_DIR}/../scripts/strip-ios-debug-symbols.sh\"\n";
+		};
 		5124824122A346BD617AD428 /* [CP] Embed Pods Frameworks */ = {
 			isa = PBXShellScriptBuildPhase;
 			buildActionMask = 2147483647;

scripts/strip-ios-debug-symbols.sh

@@ -0,0 +1,45 @@
+#!/bin/bash
+#
+# Strips debug symbols from the app binary and embedded frameworks for non-Debug builds.
+# This reduces the IPA size by ~22MB without affecting crash symbolication, because Xcode
+# generates dSYMs from the unstripped binary before this phase runs.
+#
+# Expected Xcode environment variables:
+#   CONFIGURATION, BUILT_PRODUCTS_DIR, EXECUTABLE_FOLDER_PATH, EXECUTABLE_NAME,
+#   EXPANDED_CODE_SIGN_IDENTITY
+
+set -e
+
+case "$CONFIGURATION" in
+  Debug*)
+    echo "Skipping symbol stripping for $CONFIGURATION build."
+    exit 0
+    ;;
+esac
+
+APP_DIR_PATH="${BUILT_PRODUCTS_DIR}/${EXECUTABLE_FOLDER_PATH}"
+
+echo "Stripping main binary: ${APP_DIR_PATH}/${EXECUTABLE_NAME}"
+strip -rSTx "${APP_DIR_PATH}/${EXECUTABLE_NAME}"
+
+APP_FRAMEWORKS_DIR="${APP_DIR_PATH}/Frameworks"
+if [ -d "$APP_FRAMEWORKS_DIR" ]; then
+  find "$APP_FRAMEWORKS_DIR" -name "*.framework" -maxdepth 1 -type d | while read -r framework_dir; do
+    framework_name=$(basename "$framework_dir" .framework)
+    framework_binary="$framework_dir/$framework_name"
+    if [ ! -f "$framework_binary" ]; then
+      continue
+    fi
+    if codesign -v -R="anchor apple" "$framework_binary" &> /dev/null; then
+      echo "Skipping Apple-signed: $framework_name"
+      continue
+    fi
+    echo "Stripping framework: $framework_name"
+    strip -rSTx "$framework_binary"
+    codesign --force --sign "${EXPANDED_CODE_SIGN_IDENTITY:--}" --preserve-metadata=identifier,entitlements "$framework_dir"
+  done
+else
+  echo "No Frameworks directory found at $APP_FRAMEWORKS_DIR"
+fi
+
+echo "Symbol stripping complete."