#!/usr/bin/python

from sys import argv
import os
import getopt

options, args = getopt.getopt(argv[1:], 'a:o:')

if len(args) == 1:
	infile = os.path.abspath(args[0])
	angle = 90
	outfile = ''
	for option in options:
		if option[0] == '-a':
			angle = option[1]
		if option[0] == '-o':
			outfile = os.path.abspath(option[1])

	texfile = open(os.tempnam(), 'w')
	texfile.write("""\\documentclass{article}
\\usepackage{pdfpages}
\\begin{document}
\\includepdf[pages=-,fitpaper=true,angle=%s]{%s}
\\end{document}""" % (angle, infile))
	texfile.close()

	os.chdir(os.path.dirname(texfile.name))
	os.spawnvp(os.P_WAIT, 'pdflatex', ['pdflatex', texfile.name])
	os.remove(texfile.name)
	os.remove('tmp.log')
	os.remove('tmp.aux')

	os.rename('tmp.pdf', outfile)

else:
	print 'usage: pdfrotate [-a ANGLE (degrees, default=90)] [-o OUTPUT (PDF file)] INPUT (PDF file)'