Module: Inochi::Generate

Extended by:
Generate
Included in:
Engine, Generate
Defined in:
lib/inochi/generate.rb

Instance Method Summary collapse

Instance Method Details

#generate(path, content) ⇒ Object

Writes the given contents to the file at the given path. If the given path already exists, then a backup is created before invoking the given block.



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# File 'lib/inochi/generate.rb', line 20

def generate path, content # :yields: old_file, new_file, output_file
  if File.exist? path
    old_digest = Digest::SHA1.digest(File.read(path))
    new_digest = Digest::SHA1.digest(content)

    if old_digest == new_digest
      notify :skip, path
    else
      notify :update, path
      cur, old, new = path, "#{path}.old", "#{path}.new"

      FileUtils.cp cur, old, :preserve => true
      File.write new, content

      yield old, new, cur if block_given?
    end
  else
    notify :create, path
    FileUtils.mkdir_p File.dirname(path)
    File.write path, content
  end
end

#notify(action, message) ⇒ Object

Notify the user about some action being performed.



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# File 'lib/inochi/generate.rb', line 11

def notify action, message
  printf "%16s  %s\n", action, message
end