Module: FileMutate::Mutate::ClassMethods

Defined in:
lib/file_mutate/mutate.rb

Instance Method Summary collapse

Instance Method Details

#get_file(file_name) ⇒ Object 



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# File 'lib/file_mutate/mutate.rb', line 32

def get_file file_name
  case file_name
  when PathString, String 
    File.new file_name
  when File
    file_name
  else
    raise ArgumentError, "Could not be converted to a File object: #{file_name}"
  end
end

#get_filepath(file) ⇒ Object 



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# File 'lib/file_mutate/mutate.rb', line 43

def get_filepath file
  case file
  when PathString, String 
    file
  when File
    file.path
  else
    raise ArgumentError, "Could not be converted to a file path: #{file_name}"
  end
end

#mutate_file(file, marker, place, &block) ⇒ Object

Raises:

  • (ArgumentError) 


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# File 'lib/file_mutate/mutate.rb', line 4

def mutate_file file, marker, place, &block
  raise ArgumentError, "You must define a replacement marker for a :before, :before_last or :after key" if !marker 

  file = File.get_file(file)

  if place == :before_last
    content = file.read
    content = content.insert_before_last yield, marker
    file.overwrite content
    return
  end

  marker_found = file.has_content? marker
  return nil if !marker_found

  replace_in_file file, /(#{marker})/mi do |match|
    place == :after ? "#{match}\n  #{yield}" : "#{yield}\n  #{match}"
  end
  true
end

#replace_in_file(file, regexp, *args, &block) ⇒ Object 



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# File 'lib/file_mutate/mutate.rb', line 25

def replace_in_file(file, regexp, *args, &block)
  file = File.get_file(file)
  content = file.read.gsub(regexp, *args, &block)
  file.overwrite content
end