exif-classfier

#!/usr/bin/python

import os
import sys
import argparse
import datetime

from pyexiv2 import ImageMetadata

class MetadataFailed(Exception): pass

def get_image_metadata_pyexiv2(f):
    meta = ImageMetadata(f)
    meta.read()

    d = meta.get('Exif.Photo.DateTimeDigitized') or meta.get('Exif.Photo.DateTimeOriginal')
    if not d:
      raise MetadataFailed("Invalid date for %s" % f)

    return d.value

def rename_file(f, delta = None):
    try:
        d = get_image_metadata_pyexiv2(f)
    except MetadataFailed as e:
        print "Unable to find metadata for %s" % s
        return
    except Exception as e:
        print "Error for %s: %s" % (f, e)
        return

    if delta and (d.hour < delta):
        d = d - datetime.timedelta(days = 1)

    folder = os.path.join(os.path.dirname(f), d.strftime('%Y-%02m-%02d'))
    dest = os.path.join(folder, os.path.basename(f))
    if not os.path.isdir(folder):
        os.mkdir(folder)
    os.rename(f, dest)

if __name__ == '__main__':
    for f in sys.argv[1:]:
        rename_file(f, delta = 8)