113 lines
3.6 KiB
Python
Executable file
113 lines
3.6 KiB
Python
Executable file
#!/usr/bin/env python3
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import argparse
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import datetime
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import logging
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import os
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import re
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import typing
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import coloredlogs
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import exifread
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log = logging.getLogger(__name__)
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coloredlogs.install(level="DEBUG", fmt="%(levelname)s %(message)s", logger=log)
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EXTENSION_PATTERN = re.compile(r"\.(JPE?G|DNG)", re.I)
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COMMON_PATTERN = re.compile(r"(IMG|DSC[NF]?|100|P10|f|t)_?\d+", re.I)
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EXIF_TAG_ID = 0x9003 # DateTimeOriginal
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EXIF_DATE_FORMAT = "%Y:%m:%d %H:%M:%S"
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def get_pictures(directory: str = ".", skip_renamed: bool = True) -> typing.Generator:
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for root, _, files in os.walk(directory):
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for filename in files:
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filename_trunk, extension = os.path.splitext(filename)
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if not re.match(EXTENSION_PATTERN, extension):
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continue
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if skip_renamed:
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if not re.match(COMMON_PATTERN, filename_trunk):
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continue
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full_path = os.path.join(root, filename)
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yield full_path
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def main(args: argparse.Namespace) -> None:
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log.warning("Counting files...")
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kwargs = {"directory": args.dir, "skip_renamed": args.skip_renamed}
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log.warning("Processing files...")
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for full_path in get_pictures(**kwargs):
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# Find date
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with open(full_path, 'rb') as fd:
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exif_data = exifread.process_file(fd)
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if not exif_data:
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log.warning(f"{full_path} does not have EXIF data")
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for ifd_tag in exif_data.values():
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if ifd_tag.tag == EXIF_TAG_ID:
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date_raw = ifd_tag.values
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break
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else:
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log.warning(f"{full_path} does not have required EXIF tag")
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continue
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date = datetime.datetime.strptime(date_raw, EXIF_DATE_FORMAT)
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# Determine new filename
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ext = os.path.splitext(full_path)[1].lower()
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if ext == '.jpeg':
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ext = '.jpg'
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new_name = date.isoformat().replace(":", "-").replace("T", "_") + args.suffix
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# First substitution is to allow images being sent to a NTFS filesystem
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# Second substitution is for esthetics
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new_path = os.path.join(args.dir, f"{new_name}{ext}")
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# TODO Allow keeping image in same folder
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i = 0
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while os.path.exists(new_path):
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if full_path == new_path:
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break
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log.debug(f"{new_path} already exists, incrementing")
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i += 1
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new_path = os.path.join(args.dir, f"{new_name}_{i}{ext}")
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# Rename file
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if full_path == new_path:
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log.debug(f"{full_path} already at required filename")
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continue
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log.info(f"{full_path} →\t{new_path}")
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if os.path.exists(new_path):
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raise FileExistsError(f"Won't overwrite {new_path}")
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if not args.dry:
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os.rename(full_path, new_path)
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if __name__ == "__main__":
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parser = argparse.ArgumentParser(description="Rename images based on their dates")
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parser.add_argument(
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"dir",
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metavar="DIRECTORY",
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type=str,
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default=".",
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nargs="?",
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help="Directory containing the pictures",
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)
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parser.add_argument(
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"-d",
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"--dry",
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action="store_true",
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help="Do not actually rename, just show old and new path",
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)
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parser.add_argument(
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"-r",
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"--skip-renamed",
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action="store_true",
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help="Skip images whose filename doesn't match usual camera output filenames.",
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)
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parser.add_argument(
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"-s",
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"--suffix",
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default="",
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help="Text to add before the extension",
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)
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args = parser.parse_args()
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main(args)
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