#!/usr/bin/python
# -*- encoding: utf-8 -*-
#
# exif-cp-datetime - Copies EXIF timestamps from a file to another
#
# Usage: exif-cp-datetime src.jpg dst.jpg [src2.jpg dst2.jpg ...]
#
# Copyright (C) Miguel Ángel Vilela <miguev@gmail.com>
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.

import pyexiv2
import sys

DateTimeTags = ('Exif.Image.DateTime', 'Exif.Photo.DateTimeOriginal')

# Parse arguments
if len(sys.argv) < 3 or len(sys.argv) % 2 == 0:
  print "Usage: exif-cp-datetime src.jpg dst.jpg [src2.jpg dst2.jpg ...]"
  sys.exit(1)
pairs = [(sys.argv[i], sys.argv[i+1]) for i in range(1, 2 + len(sys.argv) / 2, 2)]

# Copy DateTimeTags from src to dst
for src_name, dst_name in pairs:
  print "%s -> %s" % (src_name, dst_name),
#  src = pyexiv2.Image(src)
#  dst = pyexiv2.Image(dst)
#  src.readMetadata()
#  for tag in DateTimeTags;
#    dst[tag] = srd[tag]
#  dst.writeMetadata()
  print ""