Method: RakeFileUtils.when_writing(msg=nil) { || ... }

Use this function to prevent protentially destructive ruby code from running when the :nowrite flag is set.

Example:

when_writing("Building Project") do
  project.build
end

The following code will build the project under normal conditions. If the nowrite(true) flag is set, then the example will print:

DRYRUN: Building Project

instead of actually building the project.

# File rake.rb, line 1047
def when_writing(msg=nil)
  if RakeFileUtils.nowrite_flag
    puts "DRYRUN: #{msg}" if msg
  else
    yield
  end
end

RakeFileUtils.when_writing(msg=nil) { || ... }