An example of an iOS application's content switching

gistfile1.txt

#!/bin/sh

WORKING_DIRECTORY="${PWD}/.motch"

BUILDED_IPA_PATH="${TARGET_IPA_PATH}"
EMBEDDED_IPA_PATH="${PWD}/Artifacts/Embedded.ipa"

EMBEDDED_CONTENTS_PATH="${WORKING_DIRECTORY}/embedded"

rm -rf "${WORKING_DIRECTORY}" || true
mkdir -p "${WORKING_DIRECTORY}" || true
mkdir -p "${EMBEDDED_CONTENTS_PATH}" || true

# Extract embedded .ipa to temporary directory

unzip -oqq $EMBEDDED_IPA_PATH -d "${EMBEDDED_CONTENTS_PATH}"

# Switch our builded binary to embedded binary

EMBEDDED_APP_PATH=$(set -- "${EMBEDDED_CONTENTS_PATH}/Payload/"*.app; echo "$1")
EMBEDDED_BINARY_NAME=$(/usr/libexec/PlistBuddy -c "Print CFBundleExecutable"  "${EMBEDDED_APP_PATH}/Info.plist")

BUILDED_APP_PATH="${TARGET_BUILD_DIR}/${PRODUCT_NAME}.app"
BUILDED_BINARY_NAME=$(/usr/libexec/PlistBuddy -c "Print CFBundleExecutable"  "${BUILDED_APP_PATH}/Info.plist")

echo "Builded .ipa binary name is '${BUILDED_BINARY_NAME}'"
echo "Embedded .ipa binary name is '${EMBEDDED_BINARY_NAME}'"

rm -rf $BUILDED_APP_PATH
mv $EMBEDDED_APP_PATH $BUILDED_APP_PATH

TARGET_APP_PATH="${BUILDED_APP_PATH}"
TARGET_BINARY_PATH="${BUILDED_APP_PATH}/${BUILDED_BINARY_NAME}"

#mv "${BUILDED_APP_PATH}/${EMBEDDED_BINARY_NAME}" $TARGET_BINARY_PATH

# Inject Assembly.framework into binary

ASSEMBLY_FRAMEWORK_PATH="${TARGET_BUILD_DIR}/PackageFrameworks/Assembly.framework"
cp -r $ASSEMBLY_FRAMEWORK_PATH "${TARGET_APP_PATH}/Frameworks/Assembly.framework"

OPTOOL="Scripts/optool"
"$OPTOOL" install -c load -p "@rpath/Frameworks/Assembly.framework/Assembly" -t $TARGET_BINARY_PATH

chmod +x "${TARGET_BINARY_PATH}"

# Update Info.plist

/usr/libexec/PlistBuddy -c "Set :CFBundleIdentifier ${PRODUCT_BUNDLE_IDENTIFIER}" "${TARGET_APP_PATH}/Info.plist"
/usr/libexec/PlistBuddy -c "Set :CFBundleDisplayName Motch" "${TARGET_APP_PATH}/Info.plist"

# Remove code signature & extensions

rm -rf "${TARGET_APP_PATH}/PlugIns" || true
rm -rf "${TARGET_APP_PATH}/_CodeSignature" || true

# Code signing

for FRAMEWORK_PATH in $TARGET_APP_PATH/Frameworks/*.framework; do
    echo "Code signing '${FRAMEWORK_PATH}'.."
    /usr/bin/codesign --force --sign "${EXPANDED_CODE_SIGN_IDENTITY}" "${FRAMEWORK_PATH}"*
done

echo "Code signing '${TARGET_APP_PATH}'.."
/usr/bin/codesign --force --sign "${EXPANDED_CODE_SIGN_IDENTITY}" --timestamp=none "$TARGET_APP_PATH"