Latex wrapper for bibtex

gistfile1.rb

#!/usr/bin/env ruby -w
# Save to pdflatex to ~/bin/pdflatex

if ARGV.length == 0
  puts "Usage: texify <file.tex> <tex options>"
  exit 1
end

file = ARGV.select{|v| v =~ /.*\.tex/}[0]

latex = "/usr/texbin/pdflatex #{ARGV * ' '}"

if file
  bibtex = "bibtex #{file[0..-4]}aux"
  
  cite_file = file + '.cites'

  contents = File.open(file) {|f| f.read}

  begin
    old_data = File.open(cite_file) {|f| f.read}
  rescue
    old_data = ''
  end

  new_data = contents.scan(/\\cite\{[^\}]*\}/).join("\n")

  if (new_data != old_data)
    File.open(cite_file, 'w') {|f| f.write(new_data)}
    system(latex) and system(bibtex) and system(latex)
  end
end

system(latex)