LaTeX and Guard setup

Guardfile

# Guardfile to watch the LaTeX and automatically build it if it changes.
guard 'rake', :task => 'build' do
  watch('mydocument.tex')
end

Rakefile

task :default => [:build]

task :build do
  puts `/usr/bin/env pdflatex -interaction=nonstopmode -output-directory=build/ mydocument.tex`
end

task :clean do
  puts `rm -v build/mydocument.aux build/mydocument.out build/mydocument.aux build/mydocument.pdf build/texput.log`
end