#!/usr/bin/python
# -*- encoding: utf-8 -*-
#
# exif-gps - Copies over GPSInfo tags.
#
# Usage: exif-cp-gps File_with_GPSInfo.jpg file.jpg [more.jpg ... files.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

if len(sys.argv) < 3:
  print "Usage: exif-cp-gps File_with_GPSInfo.jpg file.jpg [more.jpg ... files.jpg]"
  sys.exit(1)
file_with_gpsinfo = sys.argv[1]
print file_with_gpsinfo
jpg_files = sys.argv[2:]
print jpg_files

# Extract GPSInfo tags from file_with_gpsinfo
im = pyexiv2.Image(file_with_gpsinfo)
im.readMetadata()
gps_tags = [tag for tag in im.exifKeys() if tag[:13] == 'Exif.GPSInfo.']
print "Got %s tags from %s" % (gps_tags, file_with_gpsinfo)
for jpg in jpg_files:
  print "Setting tags on %s" % jpg
  out = pyexiv2.Image(jpg)
  out.readMetadata()
  for tag in gps_tags:
    out[tag] = im[tag]
    out.writeMetadata()
sys.exit(0)