mirror of
https://github.com/Garmelon/PFERD.git
synced 2023-12-21 10:23:01 +01:00
129 lines
3.3 KiB
Python
129 lines
3.3 KiB
Python
import filecmp
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import logging
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import pathlib
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import shutil
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from . import utils
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__all__ = [
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"Organizer",
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]
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logger = logging.getLogger(__name__)
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class Organizer:
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def __init__(self, base_dir, sync_dir):
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"""
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base_dir - the .tmp directory will be created here
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sync_dir - synced files will be moved here
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Both are expected to be concrete pathlib paths.
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"""
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self._base_dir = base_dir
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self._sync_dir = sync_dir
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self._temp_dir = pathlib.Path(self._base_dir, ".tmp")
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self._temp_nr = 0
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# check if base/sync dir exist?
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self._added_files = set()
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def clean_temp_dir(self):
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if self._temp_dir.exists():
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shutil.rmtree(self._temp_dir)
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self._temp_dir.mkdir(exist_ok=True)
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logger.debug(f"Cleaned temp dir: {self._temp_dir}")
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def temp_file(self):
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# generate the path to a new temp file in base_path/.tmp/
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# make sure no two paths are the same
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nr = self._temp_nr
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self._temp_nr += 1
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temp_file = pathlib.Path(self._temp_dir, f"{nr:08}.tmp").resolve()
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logger.debug(f"Produced new temp file: {temp_file}")
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return temp_file
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def add_file(self, from_path, to_path):
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if not from_path.exists():
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raise utils.FileNotFoundException(f"Could not add file at {from_path}")
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# check if sync_dir/to_path is inside sync_dir?
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to_path = pathlib.Path(self._sync_dir, to_path)
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# remember path for later reference
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self._added_files.add(to_path.resolve())
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if to_path.exists():
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if filecmp.cmp(from_path, to_path, shallow=False):
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logger.info(f"Done nothing at {to_path}")
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# No further action needed, especially not overwriting symlinks...
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return
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else:
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logger.info(f"Changed file at {to_path}")
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else:
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logger.info(f"New file at {to_path}")
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# copy the file from from_path to sync_dir/to_path
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to_path.parent.mkdir(parents=True, exist_ok=True)
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from_path.replace(to_path)
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logger.debug(f"Moved {from_path} to {to_path}")
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def clean_sync_dir(self):
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self._clean_dir(self._sync_dir, remove_parent=False)
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logger.debug(f"Cleaned sync dir: {self._sync_dir}")
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def _clean_dir(self, path, remove_parent=True):
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for child in sorted(path.iterdir()):
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if child.is_dir():
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self._clean_dir(child, remove_parent=True)
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elif child.resolve() not in self._added_files:
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if self._prompt_yes_no(f"Delete {child}?", default=False):
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child.unlink()
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logger.debug(f"Deleted {child}")
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if remove_parent:
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try:
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path.rmdir()
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except OSError: # directory not empty
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pass
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def _prompt_yes_no(self, question, default=None):
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if default is True:
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prompt = "[Y/n]"
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elif default is False:
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prompt = "[y/N]"
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else:
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prompt = "[y/n]"
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text = f"{question} {prompt} "
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WRONG_REPLY = "Please reply with 'yes'/'y' or 'no'/'n'."
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while True:
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response = input(text).strip().lower()
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if response in {"yes", "ye", "y"}:
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return True
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elif response in {"no", "n"}:
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return False
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elif response == "":
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if default is None:
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print(WRONG_REPLY)
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else:
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return default
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else:
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print(WRONG_REPLY)
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# How to use:
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#
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# 1. Before downloading any files
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# orga = Organizer("/home/user/sync/", "/home/user/sync/bookstore/")
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# orga.clean_temp_dir()
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#
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# 2. Downloading a file
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# tempfile = orga.temp_file()
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# download_something_to(tempfile)
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# orga.add_file(tempfile, "books/douglas_adams/hhgttg"
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#
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# 3. After downloading all files
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# orga.clean_sync_dir()
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# orga.clean_temp_dir()
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