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#!/usr/bin/env python3
import argparse
import os
import shutil
import sys
def main():
parser = argparse.ArgumentParser(
description="Given a list of directories, this script will copy the contents of all of "
"them into the first directory, erroring out if any duplicate files are found."
)
parser.add_argument(
"--ignore-duplicates",
action="store_true",
help="Don't error out on duplicate files, just skip them. The file from the earliest "
"directory listed on the command line will be the winner."
)
parser.add_argument(
"--file-list",
help="Path to a text file containing paths relative to in_dir. Only these paths will be "
"copied out of in_dir."
)
parser.add_argument("out_dir")
parser.add_argument("in_dir")
args = parser.parse_args()
if not os.path.isdir(args.out_dir):
sys.exit(f"error: {args.out_dir} must be a directory")
if not os.path.isdir(args.in_dir):
sys.exit(f"error: {args.in_dir} must be a directory")
file_list = None
if args.file_list:
with open(file_list_file, "r") as f:
file_list = f.read().strip().splitlines()
in_dir = args.in_dir
for root, dirs, files in os.walk(in_dir):
rel_root = os.path.relpath(root, in_dir)
dst_root = os.path.join(args.out_dir, rel_root)
made_parent_dirs = False
for f in files:
src = os.path.join(root, f)
dst = os.path.join(dst_root, f)
p = os.path.normpath(os.path.join(rel_root, f))
if file_list is not None and p not in file_list:
continue
if os.path.lexists(dst):
if args.ignore_duplicates:
continue
sys.exit(f"error: {p} exists in both {args.out_dir} and {in_dir}")
if not made_parent_dirs:
os.makedirs(dst_root, exist_ok=True)
made_parent_dirs = True
shutil.copy2(src, dst, follow_symlinks=False)
if __name__ == "__main__":
main()
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