override_app_extensions.sh

override_app_extensions.sh

alias plistbuddy=/usr/libexec/PlistBuddy
alias codesign=/usr/bin/codesign


#
# Bundle identifier
#

set_plist_bundle_identifier() {
  local bundle_identifier="$1"
  local plist_file="$2"

  plistbuddy \
    -c "set :CFBundleIdentifier $bundle_identifier" \
    "$plist_file"
}

set_appex_bundle_identifier() {
  local appex_target_name="$1"
  local bundle_identifier_suffix="$2"

  local bundle_identifier="$PRODUCT_BUNDLE_IDENTIFIER.$bundle_identifier_suffix"
  local plist_file="$BUILT_PRODUCTS_DIR/$FULL_PRODUCT_NAME/$BUNDLE_PLUGINS_FOLDER_PATH/$appex_target_name.appex/Info.plist"

  set_plist_bundle_identifier "$bundle_identifier" "$plist_file"
}


#
# Bundle version
#

set_plist_bundle_version() {
  local bundle_version="$1"
  local plist_file="$2"

  plistbuddy \
    -c "set :CFBundleShortVersionString $bundle_version" \
    "$plist_file"
}

get_plsit_bundle_version() {
  local plist_file="$1"

  plistbuddy \
    -c "Print :CFBundleShortVersionString" \
    "$plist_file"
}

get_app_bundle_version() {
  local plist_file="$BUILT_PRODUCTS_DIR/$INFOPLIST_PATH"
  get_plsit_bundle_version "$plist_file"
}

set_appex_bundle_version() {
  local appex_target_name="$1"
  local bundle_version="$2"

  local plist_file="$BUILT_PRODUCTS_DIR/$FULL_PRODUCT_NAME/$BUNDLE_PLUGINS_FOLDER_PATH/$appex_target_name.appex/Info.plist"

  set_plist_bundle_version "$bundle_version" "$plist_file"
}


#
# Bundle build
#

set_plist_bundle_build() {
  local bundle_build="$1"
  local plist_file="$2"

  plistbuddy \
    -c "set :CFBundleVersion $bundle_build" \
    "$plist_file"
}

get_plist_bundle_build() {
  local plist_file="$1"

  plistbuddy \
    -c "Print :CFBundleVersion" \
    "$plist_file"
}

set_appex_bundle_build() {
  local appex_target_name="$1"
  local bundle_version="$2"

  local plist_file="$BUILT_PRODUCTS_DIR/$FULL_PRODUCT_NAME/$BUNDLE_PLUGINS_FOLDER_PATH/$appex_target_name.appex/Info.plist"

  set_plist_bundle_build "$bundle_version" "$plist_file"
}

get_app_bundle_build() {
  local plist_file="$BUILT_PRODUCTS_DIR/$INFOPLIST_PATH"
  get_plist_bundle_build "$plist_file"
}


#
# Code signing
#

prepare_entitlements_file() {
  local appex_target_name="$1"
  local bundle_identifier_suffix="$2"
  local output_file="$3"

  local original_entitlements="$CONFIGURATION_TEMP_DIR/$appex_target_name.build/$appex_target_name.appex.xcent"
  local bundle_identifier="$DEVELOPMENT_TEAM.$PRODUCT_BUNDLE_IDENTIFIER.$bundle_identifier_suffix"

  cp "$original_entitlements" "$output_file"

  if [[ $CONFIGURATION == "Release" ]]
  then
    plistbuddy \
      -c "set :application-identifier $bundle_identifier" \
      "$output_file"

    plistbuddy \
      -c "set :keychain-access-groups:0 $bundle_identifier" \
      "$output_file"
  fi
}

copy_provisioning_profile() {
  local appex_target_name="$1"
  local provision_source="$2"

  local provision_destination="$BUILT_PRODUCTS_DIR/$FULL_PRODUCT_NAME/$BUNDLE_PLUGINS_FOLDER_PATH/$appex_target_name.appex/$EMBEDDED_PROFILE_NAME"

  cp "$provision_source" "$provision_destination"
}

resign_appex() {
  local appex_target_name="$1"
  local entitlements_file="$2"

  codesign \
    --force \
    --sign "$EXPANDED_CODE_SIGN_IDENTITY" \
    --entitlements "$entitlements_file" \
    --timestamp=none \
    "$BUILT_PRODUCTS_DIR/$FULL_PRODUCT_NAME/$BUNDLE_PLUGINS_FOLDER_PATH/$appex_target_name.appex"
}

#
#
#
#
#

set_appex_bundle_identifier \
  "NotificationService" \
  "notification-service"

set_appex_bundle_version \
  "NotificationService" \
  `get_app_bundle_version`

set_appex_bundle_build \
  "NotificationService" \
  `get_app_bundle_build`

# Be careful if using `keychain-access-groups` entitlement
prepare_entitlements_file \
  "NotificationService" \
  "notification-service" \
  "$DERIVED_SOURCES_DIR/NotificationService-Entitlements.plist"

copy_provisioning_profile \
  "NotificationService" \
  "$SOURCE_ROOT/../.github/appstore/$TARGET_NAME/profiles/notification-service.mobileprovision"

resign_appex \
  "NotificationService" \
  "$DERIVED_SOURCES_DIR/NotificationService-Entitlements.plist"

Sorry. One more thing what's the difference between .entitlements file and .xcent file?

• plutil - good point 👍
• alias codesign - true, it's not needed 👍
• .xcent - I see no difference. Probably somebody decided to use xc prefixes there, as in xcconfig, xcproject, etc. Looks like legacy naming.

Can see my answer here and the steps I've written. The steps it has are not complete as yours. But I just don't get how you get yours is working given that you're updating the bundleId after 'embed App Extension' step. Based on my understanding that step should fail.

FYI this fails when I'm using a physical device. I haven't tried archiving yet...

Specifically the point I'm referencing from my answer:

Similarly the appex can't be embedded if the bundleId isn't prefixed with the parent app's bundleId.

i.e. I think bundleId should change before the 'embed App Extension' step.

Or is it that you're also updating the bundleId of the parent app in some other script before changing stuff for the appex ie you're able to embed the Appex's into the main app, but then later change the bundle Id for both the main app and appex?
Basically are you doing this?

1. embed apppex
2. update parent app bundleId and stuff
3. update appex bundleId and stuff