# encoding: utf-8

# Copyright (c) 2012, HipByte SPRL and contributors
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are met:
#
# 1. Redistributions of source code must retain the above copyright notice, this
#    list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright notice,
#    this list of conditions and the following disclaimer in the documentation
#    and/or other materials provided with the distribution.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
# DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
# ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
# (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
# LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
# SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

require 'motion/project/dependency'
require 'motion/project/parallel_builder'

module Motion; module Project;
  class Builder
    include Rake::DSL if Object.const_defined?(:Rake) && Rake.const_defined?(:DSL)

    def build(config, platform, opts)
      unless File.exist?(File.join(config.datadir, platform))
        $stderr.puts "This version of RubyMotion does not support `#{platform}'"
        exit 1
      end

      @ruby = File.join(config.bindir, 'ruby')
      @nfd = File.join(config.bindir, 'nfd')

      if config.spec_mode and (config.spec_files - config.spec_core_files).empty?
        App.fail "No spec files in `#{config.specs_dir}'"
      end

      config.resources_dirs.flatten!
      config.resources_dirs.uniq!

      # Locate SDK and compilers.
      @sdk = config.sdk(platform)
      @cc = config.locate_compiler(platform, 'clang')
      @cxx = config.locate_compiler(platform, 'clang++')

      build_dir = File.join(config.versionized_build_dir(platform))
      App.info 'Build', build_dir

      # Prepare the list of BridgeSupport files needed.
      @bs_files = config.bridgesupport_files

      # Build vendor libraries.
      vendor_libs = build_vendor_libs(config, platform)

      # Validate common build directory.
      if !File.directory?(Builder.common_build_dir) or !File.writable?(Builder.common_build_dir)
        $stderr.puts "Cannot write into the `#{Builder.common_build_dir}' directory, please remove or check permissions and try again."
        exit 1
      end

      # Prepare embedded and external frameworks BridgeSupport files (OSX-only).
      embedded_frameworks = prepare_embedded_frameworks(config, platform)
      external_frameworks = prepare_external_frameworks(config, platform)

      # Build object files.
      objs_build_dir = File.join(build_dir, 'objs')
      FileUtils.mkdir_p(objs_build_dir)
      @any_obj_file_built = false

      build_file = build_file(config, platform)

      # Resolve file dependencies.
      if config.detect_dependencies == true
        config.dependencies = Dependency.new(config.files - config.exclude_from_detect_dependencies, config.dependencies).run
      end

      parallel = ParallelBuilder.new(objs_build_dir, build_file)
      parallel.files = config.ordered_build_files
      parallel.files += config.spec_files if config.spec_mode
      parallel.run

      objs = app_objs = parallel.objects
      spec_objs = []
      if config.spec_mode
        app_objs = objs[0...config.ordered_build_files.size]
        spec_objs = objs[-(config.spec_files.size)..-1]
      end

      # Generate init file.
      init_o = build_init_file(app_objs, objs_build_dir, config, platform)

      # Build static library if the option is set
      static_library = opts.delete(:static)
      librubymotion = File.join(config.datadir, platform, 'librubymotion-static.a')
      if static_library
        # Create a static archive with all object files + the runtime.
        lib = File.join(config.versionized_build_dir(platform), config.name + '.a')
        App.info 'Create', lib
        objs_list = objs.map { |path, _| path }.unshift(init_o, *config.frameworks_stubs_objects(platform)).map { |x| "\"#{x}\"" }.join(' ')
        sh "/usr/bin/libtool -static \"#{librubymotion}\" #{objs_list} -o \"#{lib}\""
        return lib
      end

      FileUtils.touch(objs_build_dir) if @any_obj_file_built

      # Generate main file.
      main_o = build_main_file(spec_objs, objs_build_dir, config, platform)

      # Generate main file for extensions
      if config.extensions.any?
        main_extension_o = build_extension_main_file(spec_objs, objs_build_dir, config, platform)
      end

      # Prepare bundle.
      bundle_path = config.app_bundle(platform)
      unless File.exist?(bundle_path)
        App.info 'Create', bundle_path
        FileUtils.mkdir_p(bundle_path)
      end

      # Link executable.
      main_exec = config.app_bundle_executable(platform)
      should_link_executable = !File.exist?(main_exec) \
        or File.mtime(config.project_file) > File.mtime(main_exec) \
        or objs.any? { |path, _| File.mtime(path) > File.mtime(main_exec) } \
        or File.mtime(main_o) > File.mtime(main_exec) \
        or vendor_libs.any? { |lib| File.mtime(lib) > File.mtime(main_exec) } \
        or File.mtime(librubymotion) > File.mtime(main_exec)

      main_exec_created = link_executable(main_exec, objs, init_o, main_o, embedded_frameworks, external_frameworks, should_link_executable, config, platform)

      # Build extensions
      config.extensions.each do |extension|

        # Prepare the list of BridgeSupport files needed.
        @bs_files = extension.bridgesupport_files

        # Build vendor libraries.
        vendor_libs = build_vendor_libs(extension, platform)

        # Prepare embedded and external frameworks BridgeSupport files (OSX-only).
        embedded_frameworks = prepare_embedded_frameworks(extension, platform)
        external_frameworks = prepare_external_frameworks(extension, platform)

        # Build object files.
        objs_build_dir = File.join(build_dir, 'objs')
        FileUtils.mkdir_p(objs_build_dir)
        @any_obj_file_built = false

        build_file = build_file(extension, platform)

        # Resolve file dependencies.
        if extension.detect_dependencies == true
          extension.dependencies = Dependency.new(extension.files - extension.exclude_from_detect_dependencies, extension.dependencies).run
        end

        extension_parallel = ParallelBuilder.new(objs_build_dir, build_file)
        extension_files = Dir.glob("#{extension.project_dir}/app/*.rb").map{ |x| File.expand_path(x) }
        extension_parallel.files = extension_files
        extension_parallel.run
        extension_objs = extension_parallel.objects

        # Generate init file.
        init_o = build_init_file(extension_objs, objs_build_dir, config, platform, "#{extension.name}_init")

        FileUtils.touch(objs_build_dir) if @any_obj_file_built

        extension_path = extension.extension_path(platform)

        # Link executable
        extension_exec = File.join(extension_path, [config.identifier, extension.name].join('.'))
        should_link_executable = !File.exist?(extension_exec) \
          or File.mtime(extension.project_file) > File.mtime(extension_exec) \
          or extension_objs.any? { |path, _| File.mtime(path) > File.mtime(extension_exec) } \
          or File.mtime(main_extension_o) > File.mtime(extension_exec) \
          or vendor_libs.any? { |lib| File.mtime(lib) > File.mtime(extension_exec) } \
          or File.mtime(librubymotion) > File.mtime(extension_exec)

        extension_exec_created = link_executable(extension_exec, extension_objs, init_o, main_extension_o, embedded_frameworks, external_frameworks, should_link_executable, extension, platform)

        # Create extension Info.plist.
        extension_info_plist = File.join(extension_path, 'Info.plist')
        if !File.exist?(extension_info_plist) or File.mtime(extension.project_file) > File.mtime(extension_info_plist)
          App.info 'Create', extension_info_plist
          File.open(extension_info_plist, 'w') { |io| io.write(extension.send("#{extension.type.gsub('-','_')}_plist_data", platform, config.identifier)) }
          sh "/usr/bin/plutil -convert binary1 \"#{extension_info_plist}\""
        end

        # Compile IB resources.
        compile_ib_resources(extension)

        @preserve_resources = []

        # Compile CoreData Model resources and
        compile_coredata_resources(extension)

        # Comile SpriteKit atlas files
        compile_spritekit_resources(config)

        @reserved_app_bundle_files = [
          '_CodeSignature/CodeResources', 'CodeResources', 'embedded.mobileprovision',
          'Info.plist', 'PkgInfo', 'ResourceRules.plist',
          convert_filesystem_encoding([config.identifier, extension.name].join('.')),
          extension.entitlements_filename
        ]

        # Copy resources, handle subdirectories.
        resources_paths = copy_resources(extension, platform)

        # Compile all .strings files
        compile_string_files(extension, platform)

        # Delete old resource files.
        clean_resource_files(resources_paths, extension, platform)

        # Strip all symbols. Only in distribution mode.
        if extension_exec_created and (config.distribution_mode or ENV['__strip__'])
          App.info "Strip", main_exec
          sh "#{config.locate_binary('strip')} #{config.strip_args} \"#{main_exec}\""
        end

      end

      # Create bundle/PkgInfo.
      bundle_pkginfo = File.join(bundle_path, 'PkgInfo')
      if !File.exist?(bundle_pkginfo) or File.mtime(config.project_file) > File.mtime(bundle_pkginfo)
        App.info 'Create', bundle_pkginfo
        File.open(bundle_pkginfo, 'w') { |io| io.write(config.pkginfo_data) }
      end

      # Compile IB resources.
      compile_ib_resources(config)

      @preserve_resources = []

      # Compile Asset Catalog bundles.
      compile_asset_catalog_bundles(config, platform)

      # Compile CoreData Model resources and
      compile_coredata_resources(config)

      # Comile SpriteKit atlas files
      compile_spritekit_resources(config)

      # Copy embedded frameworks.
      copy_embedded_frameworks(embedded_frameworks, config, platform)

      # Create bundle/Info.plist.
      bundle_info_plist = File.join(bundle_path, 'Info.plist')
      if !File.exist?(bundle_info_plist) or File.mtime(config.project_file) > File.mtime(bundle_info_plist)
        App.info 'Create', bundle_info_plist
        File.open(bundle_info_plist, 'w') { |io| io.write(config.info_plist_data(platform)) }
        sh "/usr/bin/plutil -convert binary1 \"#{bundle_info_plist}\""
      end

      @reserved_app_bundle_files = [
        '_CodeSignature/CodeResources', 'CodeResources', 'embedded.mobileprovision',
        'Info.plist', 'PkgInfo', 'ResourceRules.plist',
        convert_filesystem_encoding(config.name)
      ]

      # Copy resources, handle subdirectories.
      resources_paths = copy_resources(config, platform)

      # Compile all .strings files
      compile_string_files(config, platform)

      # Optional support for #eval (OSX-only).
      if config.respond_to?(:eval_support) and config.eval_support
        repl_dylib_path = File.join(config.datadir, '..', 'librubymotion-repl.dylib')
        dest_path = File.join(app_resources_dir, File.basename(repl_dylib_path))
        copy_resource(repl_dylib_path, dest_path)
        @preserve_resources << File.basename(repl_dylib_path)
      end

      # Delete old resource files.
      clean_resource_files(resources_paths, config, platform)

      # Generate dSYM.
      dsym_path = config.app_bundle_dsym(platform)
      if !File.exist?(dsym_path) or File.mtime(main_exec) > File.mtime(dsym_path)
        App.info "Create", dsym_path
        sh "/usr/bin/dsymutil \"#{main_exec}\" -o \"#{dsym_path}\""
      end

      # Strip all symbols. Only in distribution mode.
      if main_exec_created and (config.distribution_mode or ENV['__strip__'])
        App.info "Strip", main_exec
        sh "#{config.locate_binary('strip')} #{config.strip_args} \"#{main_exec}\""
      end
    end

    def path_on_resources_dirs(dirs, path)
      dir = dirs.each do |dir|
        break dir if path =~ /^#{dir}/
      end
      path = path.sub(/^#{dir}\/*/, '') if dir
      path
    end

    def convert_filesystem_encoding(string)
      if RUBY_VERSION < "2.1.0"
        return eval `#{@nfd} "#{string}"`
      else
        # Dir.glob on Ruby 2.1 returns file path as "Normalization Form C".
        # So, we do not convert to "Normalization Form D".
        # (Ruby 2.0 or below, Dir.glob returns "Normalization Form D").
        return string
      end
    end

    def compile_resource_to_binary_plist(path)
      unless File.size(path) == 0
        App.info 'Compile', path
        sh "/usr/bin/plutil -convert binary1 \"#{path}\""
      end
    end

    def copy_resource(res_path, dest_path)
      if !File.exist?(dest_path) or File.mtime(res_path) > File.mtime(dest_path)
        FileUtils.mkdir_p(File.dirname(dest_path))
        App.info 'Copy', res_path
        FileUtils.cp_r(res_path, dest_path)
      end
    end

    def profile(config, platform, config_plist)
      plist_path = File.join(config.versionized_build_dir(platform), 'pbxperfconfig.plist')
      App.info('Create', plist_path)
      plist_path = File.expand_path(plist_path)
      File.open(plist_path, 'w') { |f| f << Motion::PropertyList.to_s(config_plist) }

      instruments_app = File.expand_path('../Applications/Instruments.app', config.xcode_dir)
      App.info('Profile', config.app_bundle(platform))
      sh "'#{File.join(config.bindir, 'instruments')}' '#{instruments_app}' '#{plist_path}'"
    end

    def build_file(config, platform)
      archs = config.archs[platform]
      project_files = Dir.glob("**/*.rb").map{ |x| File.expand_path(x) }
      rubyc_bs_flags = @bs_files.map { |x| "--uses-bs \"" + x + "\" " }.join(' ')
      is_default_archs = (archs == config.default_archs[platform])

      Proc.new do |files_build_dir, path|
        rpath = path
        path = File.expand_path(path)
        if is_default_archs && !project_files.include?(path)
          files_build_dir = File.expand_path(File.join(Builder.common_build_dir, files_build_dir))
        end
        obj = File.join(files_build_dir, "#{path}.o")
        should_rebuild = (!File.exist?(obj) \
            or File.mtime(path) > File.mtime(obj) \
            or File.mtime(@ruby) > File.mtime(obj))

        # Generate or retrieve init function.
        init_func = should_rebuild ? "MREP_#{`/usr/bin/uuidgen`.strip.gsub('-', '')}" : `#{config.locate_binary('nm')} \"#{obj}\"`.scan(/T\s+_(MREP_.*)/)[0][0]

        if should_rebuild
          App.info 'Compile', rpath
          FileUtils.mkdir_p(File.dirname(obj))
          arch_objs = []
          archs.each do |arch|
            # Locate arch kernel.
            kernel = File.join(config.datadir, platform, "kernel-#{arch}.bc")
            raise "Can't locate kernel file" unless File.exist?(kernel)

            # Assembly.
            asm = File.join(files_build_dir, "#{path}.#{arch}.s")
            arm64 = false
            compiler_exec_arch = case arch
              when /^arm/
                (arm64 = (arch == 'arm64')) ? 'x86_64' : 'i386'
              else
                arch
            end
            sh "/usr/bin/env VM_PLATFORM=\"#{platform}\" VM_KERNEL_PATH=\"#{kernel}\" VM_OPT_LEVEL=\"#{config.opt_level}\" /usr/bin/arch -arch #{compiler_exec_arch} #{@ruby} #{rubyc_bs_flags} --emit-llvm \"#{asm}\" #{init_func} \"#{path}\""

            # Object
            arch_obj = File.join(files_build_dir, "#{path}.#{arch}.o")
            if arm64
              # At the time of this writing Apple hasn't yet contributed the source code of the LLVM backend for the "arm64" architecture, so the RubyMotion compiler can't emit proper assembly yet. We work around this limitation by generating bitcode instead and giving it to the linker. Ugly but should be temporary (right?).
              @dummy_object_file ||= begin
                src_path = '/tmp/__dummy_object_file__.c'
                obj_path = '/tmp/__dummy_object_file__.o'
                File.open(src_path, 'w') { |io| io.puts "static int foo(void) { return 42; }" }
                sh "#{@cc} -c #{src_path} -o #{obj_path} -arch arm64 -miphoneos-version-min=7.0"
                obj_path
              end
              ld_path = File.join(App.config.xcode_dir, 'Toolchains/XcodeDefault.xctoolchain/usr/bin/ld')
              sh "#{ld_path} \"#{asm}\" \"#{@dummy_object_file}\" -arch arm64 -r -o \"#{arch_obj}\""
            else
              sh "#{@cc} -fexceptions -c -arch #{arch} \"#{asm}\" -o \"#{arch_obj}\""
            end

            [asm].each { |x| File.unlink(x) } unless ENV['keep_temps']
            arch_objs << arch_obj
          end

          # Assemble fat binary.
          arch_objs_list = arch_objs.map { |x| "\"#{x}\"" }.join(' ')
          sh "/usr/bin/lipo -create #{arch_objs_list} -output \"#{obj}\""
        end

        @any_obj_file_built = true
        [obj, init_func]
      end
    end

    def build_init_file(app_objs, objs_build_dir, config, platform, filename = 'init')
      init_txt = config.init_cpp_file_txt(app_objs)

      init = File.join(objs_build_dir, "#{filename}.mm")
      init_o = File.join(objs_build_dir, "#{filename}.o")
      if !(File.exist?(init) and File.exist?(init_o) and File.read(init) == init_txt)
        File.open(init, 'w') { |io| io.write(init_txt) }
        sh "#{@cxx} \"#{init}\" #{config.cflags(platform, true)} -c -o \"#{init_o}\""
      end

      init_o
    end

    def build_main_file(spec_objs, objs_build_dir, config, platform)
      main_txt = config.main_cpp_file_txt(spec_objs)

      main = File.join(objs_build_dir, 'main.mm')
      main_o = File.join(objs_build_dir, 'main.o')
      if !(File.exist?(main) and File.exist?(main_o) and File.read(main) == main_txt)
        File.open(main, 'w') { |io| io.write(main_txt) }
        sh "#{@cxx} \"#{main}\" #{config.cflags(platform, true)} -c -o \"#{main_o}\""
      end

      main_o
    end

    def build_extension_main_file(spec_objs, objs_build_dir, config, platform)
      extension_main_txt = config.extension_main_cpp_file_txt(spec_objs)

      extension_main = File.join(objs_build_dir, 'extension_main.mm')
      extension_main_o = File.join(objs_build_dir, 'extension_main.o')
      if !(File.exist?(extension_main) and File.exist?(extension_main_o) and File.read(extension_main) == extension_main_txt)
        File.open(extension_main, 'w') { |io| io.write(extension_main_txt) }
        sh "#{@cxx} \"#{extension_main}\" #{config.cflags(platform, true)} -c -o \"#{extension_main_o}\""
      end

      extension_main_o
    end

    def link_executable(main_exec, objs, init_o, main_o, embedded_frameworks, external_frameworks, should_link_executable, config, platform)
      unless File.exist?(File.dirname(main_exec))
        App.info 'Create', File.dirname(main_exec)
        FileUtils.mkdir_p(File.dirname(main_exec))
      end
      main_exec_created = false
      if should_link_executable
        App.info 'Link', main_exec
        objs_list = objs.map { |path, _| path }.unshift(init_o, main_o, *config.frameworks_stubs_objects(platform)).map { |x| "\"#{x}\"" }.join(' ')
        framework_search_paths = (config.framework_search_paths + (embedded_frameworks + external_frameworks).map { |x| File.dirname(x) }).uniq.map { |x| "-F '#{File.expand_path(x)}'" }.join(' ')
        frameworks = (config.frameworks_dependencies + (embedded_frameworks + external_frameworks).map { |x| File.basename(x, '.framework') }).map { |x| "-framework #{x}" }.join(' ')
        weak_frameworks = config.weak_frameworks.map { |x| "-weak_framework #{x}" }.join(' ')
        vendor_libs = config.vendor_projects.inject([]) do |libs, vendor_project|
          libs << vendor_project.libs.map { |x|
            (vendor_project.opts[:force_load] ? '-force_load ' : '-ObjC ') + "\"#{x}\""
          }
        end.join(' ')
        linker_option = begin
          m = config.deployment_target.match(/(\d+)/)
          if m[0].to_i < 7
            "-stdlib=libstdc++"
          end
        end || ""
        sh "#{@cxx} -o \"#{main_exec}\" #{objs_list} #{config.ldflags(platform)} -L#{File.join(config.datadir, platform)} -lrubymotion-static -lobjc -licucore #{linker_option} #{framework_search_paths} #{frameworks} #{weak_frameworks} #{config.libs.join(' ')} #{vendor_libs}"
        main_exec_created = true

        # Change the install name of embedded frameworks.
        embedded_frameworks.each do |path|
          res = `/usr/bin/otool -L \"#{main_exec}\"`.scan(/(.*#{File.basename(path)}.*)\s\(/)
          if res and res[0] and res[0][0]
            old_path = res[0][0].strip
            if platform == "MacOSX"
              exec_path = "@executable_path/../Frameworks/"
            else
              exec_path = "@executable_path/Frameworks/"
            end
            new_path = exec_path + old_path.scan(/#{File.basename(path)}.*/)[0]
            sh "/usr/bin/install_name_tool -change \"#{old_path}\" \"#{new_path}\" \"#{main_exec}\""
          else
            App.warn "Cannot locate and fix install name path of embedded framework `#{path}' in executable `#{main_exec}', application might not start"
          end
        end
      end
      main_exec_created
    end

    def compile_ib_resources(config)
      config.resources_dirs.each do |dir|
        if File.exist?(dir)
          ib_resources = []
          ib_resources.concat((Dir.glob(File.join(dir, '**', '*.xib')) + Dir.glob(File.join(dir, '*.lproj', '*.xib'))).map { |xib| [xib, xib.sub(/\.xib$/, '.nib')] })
          ib_resources.concat(Dir.glob(File.join(dir, '**', '*.storyboard')).map { |storyboard| [storyboard, storyboard.sub(/\.storyboard$/, '.storyboardc')] })
          ib_resources.each do |src, dest|
            if !File.exist?(dest) or File.mtime(src) > File.mtime(dest)
              App.info 'Compile', src
              sh "/usr/bin/ibtool --compile \"#{dest}\" \"#{src}\""
            end
          end
        end
      end
    end

    def compile_coredata_resources(config)
      config.resources_dirs.each do |dir|
        if File.exist?(dir)
          Dir.glob(File.join(dir, '*.xcdatamodeld')).each do |model|
            momd = model.sub(/\.xcdatamodeld$/, '.momd')
            if !File.exist?(momd) or File.mtime(model) > File.mtime(momd)
              App.info 'Compile', model
              model = File.expand_path(model) # momc wants absolute paths.
              momd = File.expand_path(momd)
              sh "\"#{App.config.xcode_dir}/usr/bin/momc\" \"#{model}\" \"#{momd}\""
            end
          end
        end
      end
    end

    def compile_spritekit_resources(config)
      config.resources_dirs.each do |dir|
        if File.exist?(dir) && cmd = config.spritekit_texture_atlas_compiler
          Dir.glob(File.join(dir, '*.atlas')).each do |atlas|
            if File.directory?(atlas)
              App.info 'Compile', atlas
              sh "\"#{cmd}\" \"#{atlas}\" \"#{bundle_path}\""
            end
          end
        end
      end
    end

    def copy_embedded_frameworks(embedded_frameworks, config, platform)
      unless embedded_frameworks.empty?
        app_frameworks = File.join(config.app_bundle(platform), 'Frameworks')
        FileUtils.mkdir_p(app_frameworks)
        embedded_frameworks.each do |src_path|
          dest_path = File.join(app_frameworks, File.basename(src_path))
          if !File.exist?(dest_path) or File.mtime(src_path) > File.mtime(dest_path)
            App.info 'Copy', src_path
            FileUtils.cp_r(src_path, dest_path)
          end
        end
      end
    end

    def copy_resources(config, platform)
      app_resources_dir = config.app_resources_dir(platform)
      FileUtils.mkdir_p(app_resources_dir)
      resources_exclude_extnames = ['.xib', '.storyboard', '.xcdatamodeld', '.atlas', '.xcassets']
      resources_paths = []
      config.resources_dirs.each do |dir|
        if File.exist?(dir)
          resources_paths << Dir.chdir(dir) do
            Dir.glob('**{,/*/**}/*').reject do |x|
              # Find files with extnames to exclude or files inside bundles to
              # exclude (e.g. xcassets).
              File.extname(x) == '.lproj' ||
                resources_exclude_extnames.include?(File.extname(x)) ||
                  resources_exclude_extnames.include?(File.extname(x.split('/').first))
            end.map { |file| File.join(dir, file) }
          end
        end
      end
      resources_paths.flatten!
      resources_paths.each do |res_path|
        res = path_on_resources_dirs(config.resources_dirs, res_path)
        if @reserved_app_bundle_files.include?(res)
          App.fail "Cannot use `#{res_path}' as a resource file because it's a reserved application bundle file"
        end
        dest_path = File.join(app_resources_dir, res)
        copy_resource(res_path, dest_path)
      end

      resources_paths
    end

    def clean_resource_files(resources_paths, config, platform)
      app_resources_dir = config.app_resources_dir(platform)
      resources_files = resources_paths.map { |x| path_on_resources_dirs(config.resources_dirs, x) }
      Dir.chdir(app_resources_dir) do
        Dir.glob('*').each do |bundle_res|
          next if File.directory?(bundle_res)
          next if @reserved_app_bundle_files.include?(bundle_res)
          next if resources_files.include?(bundle_res)
          next if @preserve_resources.include?(File.basename(bundle_res))
          App.warn "File `#{bundle_res}' found in app bundle but not in resource directories, removing"
          FileUtils.rm_rf(bundle_res)
        end
      end
    end

    def compile_string_files(config, platform)
      app_resources_dir = config.app_resources_dir(platform)
      Dir.glob(File.join(app_resources_dir, '{,**/}*.strings')).each do |strings_file|
        compile_resource_to_binary_plist(strings_file)
      end
    end

    def prepare_embedded_frameworks(config, platform)
      if config.respond_to?(:embedded_frameworks)
        embedded_frameworks = config.embedded_frameworks.map { |x| File.expand_path(x) }
      else
        []
      end
    end

    def prepare_external_frameworks(config, platform)
      if config.respond_to?(:external_frameworks)
        embedded_frameworks = config.embedded_frameworks
        external_frameworks = config.external_frameworks.map { |x| File.expand_path(x) }
        (embedded_frameworks + external_frameworks).each do |path|
          headers = Dir.glob(File.join(path, 'Headers/**/*.h'))
          bs_file = File.join(Builder.common_build_dir, File.expand_path(path) + '.bridgesupport')
          if !File.exist?(bs_file) or File.mtime(path) > File.mtime(bs_file)
            FileUtils.mkdir_p(File.dirname(bs_file))
            config.gen_bridge_metadata(platform, headers, bs_file, '', [])
          end
          @bs_files << bs_file
        end
      else
        []
      end
    end

    def build_vendor_libs(config, platform)
      vendor_libs = []
      config.vendor_projects.each do |vendor_project|
        vendor_project.build(platform)
        vendor_libs.concat(vendor_project.libs)
        @bs_files.concat(vendor_project.bs_files)
      end
      vendor_libs
    end

    def compile_asset_catalog_bundles(config, platform)
      assets_bundles = config.assets_bundles
      unless assets_bundles.empty?
        app_icons_asset_bundle = config.app_icons_asset_bundle
        if app_icons_asset_bundle
          app_icons_info_plist_path = config.app_icons_info_plist_path(platform)
          app_icons_options = "--output-partial-info-plist \"#{app_icons_info_plist_path}\" " \
                              "--app-icon \"#{config.app_icon_name_from_asset_bundle}\""
        end

        App.info 'Compile', assets_bundles.join(", ")
        app_resources_dir = File.expand_path(config.app_resources_dir(platform))
        FileUtils.mkdir_p(app_resources_dir)
        cmd = "\"#{config.xcode_dir}/usr/bin/actool\" --output-format human-readable-text " \
              "--notices --warnings --platform #{config.deploy_platform.downcase} " \
              "--minimum-deployment-target #{config.deployment_target} " \
              "#{Array(config.device_family).map { |d| "--target-device #{d}" }.join(' ')} " \
              "#{app_icons_options} --compress-pngs --compile \"#{app_resources_dir}\" " \
              "\"#{assets_bundles.map { |f| File.expand_path(f) }.join('" "')}\""
        $stderr.puts(cmd) if App::VERBOSE
        actool_output = `#{cmd} 2>&1`
        $stderr.puts(actool_output) if App::VERBOSE

        # Split output in warnings and compiled files
        actool_output, actool_compilation_results = actool_output.split('/* com.apple.actool.compilation-results */')
        actool_compiled_files = actool_compilation_results.strip.split("\n")
        if actool_document_warnings = actool_output.split('/* com.apple.actool.document.warnings */').last
          # Propagate warnings to the user.
          actool_document_warnings.strip.split("\n").each { |w| App.warn(w) }
        end

        # Remove the partial Info.plist line and preserve all other assets.
        actool_compiled_files.delete(app_icons_info_plist_path) if app_icons_asset_bundle
        @preserve_resources.concat(actool_compiled_files.map { |f| File.basename(f) })

        config.configure_app_icons_from_asset_bundle(platform) if app_icons_asset_bundle
      end
    end

    class << self
      def common_build_dir
        dir = File.expand_path("~/Library/RubyMotion/build")
        unless File.exist?(dir)
          begin
            FileUtils.mkdir_p dir
          rescue
          end
        end

        # Validate common build directory.
        if !File.directory?(dir) or !File.writable?(dir)
          $stderr.puts "Cannot write into the `#{dir}' directory, please remove or check permissions and try again."
          exit 1
        end

        dir
      end
    end
  end
end; end