Class: Hokkaido::GemModifier

Inherits:
Object
  • Object
show all
Defined in:
lib/gem_modifier.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(info) ⇒ GemModifier

Returns a new instance of GemModifier.



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# File 'lib/gem_modifier.rb', line 38

def initialize(info)
  @gem_name, @init_lib, @lib_folder = info
  @require_libs = [File.join(@lib_folder, @init_lib)]
end

Instance Attribute Details

#gem_name ⇒ Object (readonly)

Returns the value of attribute gem_name.



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# File 'lib/gem_modifier.rb', line 36

def gem_name
  @gem_name
end

#init_lib ⇒ Object (readonly)

Returns the value of attribute init_lib.



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# File 'lib/gem_modifier.rb', line 36

def init_lib
  @init_lib
end

#lib_folder ⇒ Object (readonly)

Returns the value of attribute lib_folder.



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# File 'lib/gem_modifier.rb', line 36

def lib_folder
  @lib_folder
end

Instance Method Details

#modify! ⇒ Object 



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# File 'lib/gem_modifier.rb', line 43

def modify!
  parse_gem(File.join(@lib_folder, @init_lib))
  write_manifest
end

#parse_gem(init_lib) ⇒ Object

def simulate! puts "simulator not implemented..." end



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# File 'lib/gem_modifier.rb', line 52

def parse_gem(init_lib)
  # puts "Processing: #{init_lib}"
  # don't ask
  init_path = init_lib

  init_file = File.read(init_lib)
  current_file = ""

  init_file.each_line do |line|
    if line.strip =~ /^require/
      parser = RubyParser.new
      sexp = parser.parse(line)
      call = sexp[2]

      unless call == :require
        # WEIRD SHIT IS HAPPENING
        current_file += line
        next
      end

      require_type = sexp[3][1][0]
      library = sexp[3][1][1]
      #p library

      if require_type == :str && library.match(@gem_name)
        # fold in
        full_rb_path = File.join([@lib_folder, "#{library}.rb"])
        unless @require_libs.include?(full_rb_path)
          file_index = @require_libs.index(init_lib)
          insert_index = file_index
          @require_libs.insert insert_index, full_rb_path
          parse_gem(full_rb_path)
        end
      else
        current_file += "# FIXME: #require is not supported in RubyMotion\n"
        current_file += "# #{line}"
        next
      end
      # comment it out
      current_file += "# #{line}"
      next
    elsif line.strip =~ /^autoload/
      # same as require
      parser = RubyParser.new
      sexp = parser.parse(line)
      call = sexp[2]

      unless call == :autoload
        # WEIRD SHIT IS HAPPENING
        current_file += line
        next
      end

      require_type = sexp[3][2][0]
      library = sexp[3][2][1]

      full_rb_path = File.join([@lib_folder, "#{library}.rb"])
      unless @require_libs.include?(full_rb_path)
        file_index = @require_libs.index(init_lib)
        insert_index = file_index
        @require_libs.insert insert_index, full_rb_path
        parse_gem(full_rb_path)
      end
      # comment it out
      current_file += "# #{line}"
      next

    
    elsif line.strip =~ /^eval/
        # reprint as a block
        # parser = RubyParser.new
        # sexp = parser.parse(line)
        # code_str = sexp[3][1][1]
        # new_eval = "eval do\n  #{code_str}\nend\n"
        # current_file += "#{new_eval}"
        # next

        # produce a fixme

        current_file += "# FIXME: Cannot eval strings in RubyMotion. \n"
        current_file += "# Rewrite to use a block.. inbuilt hack will run \n"
        current_file += "# Change this: \n"
        current_file += "# eval %Q{ \n" 
        current_file += '# def #{c}(string = nil) ' + "\n"
        current_file += "# To this \n"
        current_file += "# eval do \n"
        current_file += "# define_method(c) do |string| \n"
        current_file += "#{line}"
        next
    elsif line.strip =~ /^binding/
        current_file += "# FIXME: binding is not supported in RubyMotion.\n"
        current_file += "#{line}"
        next
    end

    # dont intefere
    current_file += line
  end

  # replace file
  File.open(init_lib, 'w') {|f| f.write(current_file) } #unless TEST_MODE

end

#write_manifest ⇒ Object 



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# File 'lib/gem_modifier.rb', line 156

def write_manifest

  #puts @require_libs

  @manifest_files = @require_libs.collect do |lib|

    lib = lib.gsub("#{@lib_folder}/", "")

    INCLUDE_STRING.gsub("RELATIVE_LIBRARY_PATH", lib)

  end

  # creates config manifest
  @manifest = RUBYMOTION_GEM_CONFIG.gsub("MAIN_CONFIG_FILES", @manifest_files.join("\n"))

  File.prepend(File.join(@lib_folder, @init_lib), @manifest)

  File.prepend(File.join(@lib_folder, @init_lib), EVAL_HACK)

end