Script for building dynamic framework

build.sh

#!/bin/bash

BASEDIR="$( cd "$(dirname "$0/")" ; pwd -P )"
BUILD_DIR="$BASEDIR/Builds"
PROJECT_FILE="Butterfly.xcodeproj"
PRODUCT_NAME="Butterfly"
TARGET_NAME="Butterfly-iOS"
CONFIGURATION="Release"

CLEAR='\033[0m'
RED='\033[0;31m'
ORANGE='\033[38;5;208m'
GREEN='\033[0;32m'
GREY='\033[38;5;237m'

function welcome() {
  if [ -z "$QUIET" ]; then
  printf """$GREEN\
    __          __  __            ______
   / /_  __  __/ /_/ /____  _____/ __/ /_  __
  / __ \/ / / / __/ __/ _ \/ ___/ /_/ / / / /
 / /_/ / /_/ / /_/ /_/  __/ /  / __/ / /_/ /
/_.___/\__,_/\__/\__/\___/_/  /_/ /_/\__, /
                                    /____/

$CLEAR"""
  fi
}

function echo_start()   { echo -ne "\r${GREY}[~] $@...${CLEAR}"; }
function echo_success() { echo -e "\r${GREEN}[+] $@ (SUCCESS)${CLEAR}"; }
function echo_warning() { echo -e "\r${ORANGE}[+] $@ (FINISHED WITH WARNINGS)${CLEAR}"; }
function echo_failed()  { echo -e "\r${RED}[!] $@ (FAILED)${CLEAR}"; }

function perform_step() {
  STEP=$1
  shift;

  TEMP_OUT_FILE="$BUILD_DIR/out"
  TEMP_ERR_FILE="$BUILD_DIR/err"
  rm "$TEMP_OUT_FILE" 2> /dev/null
  rm "$TEMP_ERR_FILE" 2> /dev/null

  echo_start $STEP

  # execute command
  $@ > "$TEMP_OUT_FILE" 2> "$TEMP_ERR_FILE"

  if [ -s "$TEMP_ERR_FILE" ] # stderr?
  then
    echo_failed $STEP
    cat $TEMP_OUT_FILE
    cat $TEMP_ERR_FILE
    echo_failed $STEP
    exit 1
  fi

  if [ -s "$TEMP_OUT_FILE" ] # stdout?
  then
    echo_warning $STEP
    cat $TEMP_OUT_FILE
  else
    echo_success $STEP
  fi
}

function build() {
  SDK="$1"

  perform_step "Build $TARGET_NAME for $SDK" \
    xcodebuild -project "$PROJECT_FILE" \
      -target "$TARGET_NAME" \
      -sdk $SDK \
      -IDEBuildOperationMaxNumberOfConcurrentCompileTasks=`sysctl -n hw.ncpu` \
      -configuration ${CONFIGURATION} \
      -destination 'generic/platform=iOS' \
      -quiet \
      BUILD_DIR="${BUILD_DIR}" BUILD_ROOT="${BUILD_ROOT}" ONLY_ACTIVE_ARCH=NO MODULE_CACHE_DIR="$BUILD_DIR/DerivedData/ModuleCache" OBJROOT="$BUILD_DIR/Intermediates" \
      SHARED_PRECOMPS_DIR="$BUILD_DIR/Intermediates/PrecompiledHeaders" SYMROOT="$BUILD_DIR/Products" CONFIGURATION_TEMP_DIR="$BUILD_DIR/Products" BUILD_DIR="$BUILD_DIR" BUILD_ROOT="$BUILD_DIR" \
      clean build
}

function join_frameworks() {
  rm -r "$PRODUCT_NAME.framework" 2> /dev/null
  cp -R "$BUILD_DIR/$CONFIGURATION-iphoneos/$PRODUCT_NAME.framework" "$PRODUCT_NAME.framework"
  perform_step "Joining architectures" \
    lipo -create -output "$PRODUCT_NAME.framework/$PRODUCT_NAME" \
      "${BUILD_DIR}/$CONFIGURATION-iphonesimulator/$PRODUCT_NAME.framework/$PRODUCT_NAME" \
      "${BUILD_DIR}/$CONFIGURATION-iphoneos/$PRODUCT_NAME.framework/$PRODUCT_NAME"
}

# Step 0. Print purpose of script
welcome

# Step 1. Create build dir
rm -r $BUILD_DIR 2> /dev/null
mkdir -p $BUILD_DIR

# Step 2. Build Device and Simulator versions
build iphoneos
build iphonesimulator

# Step 3. Copy the framework and join for architectures
join_frameworks

# Step 4. Clean up
rm -r $BUILD_DIR 2> /dev/null

# Step 5. Locate the final product in Finder
open -R "$PRODUCT_NAME.framework"