94 lines
3 KiB
Python
94 lines
3 KiB
Python
"""Retrieve some paths from filesystem.
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A lot of logic comes from `appdirs`:
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https://github.com/ActiveState/appdirs/blob/master/appdirs.py
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"""
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from functools import lru_cache
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from os import getenv
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from os.path import expanduser
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from pathlib import Path
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from typing import Optional
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APP_NAME = "bebop"
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@lru_cache(None)
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def get_config_path() -> Path:
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"""Return the user config file path."""
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config_dir = Path(getenv("XDG_CONFIG_HOME", expanduser("~/.config")))
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return config_dir / (APP_NAME + ".json")
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@lru_cache(None)
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def get_user_data_path() -> Path:
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"""Return the user data directory path."""
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path = Path(getenv("XDG_DATA_HOME", expanduser("~/.local/share")))
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return path / APP_NAME
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@lru_cache(None)
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def get_downloads_path() -> Path:
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"""Return the user downloads directory path (fallbacks to home dir)."""
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xdg_config_path = Path(getenv("XDG_CONFIG_HOME", expanduser("~/.config")))
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download_path = ""
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try:
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with open(xdg_config_path / "user-dirs.dirs", "rt") as user_dirs_file:
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for line in user_dirs_file:
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if line.startswith("XDG_DOWNLOAD_DIR="):
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download_path = line.rstrip().split("=", maxsplit=1)[1]
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download_path = download_path.strip('"')
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home = expanduser("~")
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download_path = download_path.replace("$HOME", home)
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return Path(download_path)
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except OSError:
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pass
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return Path.home()
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@lru_cache(None)
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def get_identities_list_path():
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"""Return the identities JSON file path."""
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return get_user_data_path() / "identities.json"
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@lru_cache(None)
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def get_identities_path():
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"""Return the directory where identities are stored."""
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return get_user_data_path() / "identities"
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@lru_cache(None)
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def get_capsule_prefs_path():
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"""Return the directory where identities are stored."""
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return get_user_data_path() / "capsule_prefs.json"
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def ensure_bebop_files_exist() -> Optional[str]:
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"""Ensure various Bebop's files or directories are present.
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Returns:
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None if all files and directories are present, an error string otherwise.
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"""
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try:
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# Ensure the user data directory exists.
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user_data_path = get_user_data_path()
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if not user_data_path.exists():
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user_data_path.mkdir(parents=True)
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# Ensure the identities file and directory exists.
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identities_file_path = get_identities_list_path()
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if not identities_file_path.exists():
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with open(identities_file_path, "wt") as identities_file:
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identities_file.write("{}")
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identities_path = get_identities_path()
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if not identities_path.exists():
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identities_path.mkdir(parents=True)
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# Ensure the capsule preferences file exists.
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capsule_prefs_path = get_capsule_prefs_path()
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if not capsule_prefs_path.exists():
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with open(capsule_prefs_path, "wt") as prefs_file:
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prefs_file.write("{}")
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except OSError as exc:
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return str(exc)
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