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Delete platformdirs dependency (#1511)
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Original file line number | Diff line number | Diff line change |
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r"""This module defines folders where Porcupine stores files. | ||
Folders on most Windows systems: | ||
config_dir = C:\Users\<username>\AppData\Local\Akuli\Porcupine | ||
cache_dir = C:\Users\<username>\AppData\Local\Akuli\Porcupine\Cache | ||
log_dir = C:\Users\<username>\AppData\Local\Akuli\Porcupine\Logs | ||
Folders on most MacOS systems: | ||
config_dir = /Users/<username>/Library/Application Support/Porcupine | ||
cache_dir = /Users/<username>/Library/Caches/Porcupine | ||
log_dir = /Users/<username>/Library/Logs/Porcupine | ||
Folders on most Linux systems: | ||
config_dir = /home/<username>/.config/porcupine | ||
cache_dir = /home/<username>/.cache/porcupine | ||
log_dir = /home/<username>/.cache/porcupine/log | ||
Libraries like `platformdirs` exist, but a custom thing makes it easier to | ||
explain to users where Porcupine is storing its files. Using many small | ||
dependencies is also bad from a security point of view. | ||
How to import | ||
------------- | ||
Good: | ||
from porcupine import dirs | ||
Bad: | ||
from porcupine.dirs import config_dir | ||
The bad import won't work as expected when running tests. | ||
When the tests start, the `config_dir`, `cache_dir` and `log_dir` variables | ||
are changed to point inside a temporary directory. This separates the user's | ||
settings from Porcupine's tests. | ||
The bad import captures the value of the variable at the time of importing, | ||
before the tests change it. Therefore it will always point at the user's | ||
personal settings folder, even when running tests. | ||
""" | ||
|
||
import os | ||
import sys | ||
from pathlib import Path | ||
|
||
if sys.platform == "win32": | ||
# %LOCALAPPDATA% seems to be a thing on all reasonably new Windows systems. | ||
# | ||
# Porcupine uses local appdata for historical reasons. | ||
# I'm not sure whether it is better or worse than the roaming appdata. | ||
# Please create an issue if you think Porcupine should use the roaming appdata instead. | ||
_localappdata = os.getenv("LOCALAPPDATA") | ||
if not _localappdata: | ||
raise RuntimeError("%LOCALAPPDATA% is not set") | ||
|
||
config_dir = Path(_localappdata) / "Akuli" / "Porcupine" | ||
cache_dir = config_dir / "Cache" | ||
log_dir = config_dir / "Logs" | ||
|
||
elif sys.platform == "darwin": | ||
config_dir = Path("~/Library/Application Support/Porcupine").expanduser() | ||
cache_dir = Path("~/Library/Caches/Porcupine").expanduser() | ||
log_dir = Path("~/Library/Logs/Porcupine").expanduser() | ||
|
||
else: | ||
# This code is for linux, and for Tuomas running Porcupine on NetBSD. | ||
# | ||
# See https://specifications.freedesktop.org/basedir-spec/basedir-spec-latest.html | ||
# for env vars and the fallbacks to be used when they are "either not set or empty". | ||
# In reality, nobody uses these env vars, so the fallbacks are important. | ||
config_dir = Path(os.getenv("XDG_CONFIG_HOME") or os.path.expanduser("~/.config")) / "porcupine" | ||
cache_dir = Path(os.getenv("XDG_CACHE_HOME") or os.path.expanduser("~/.cache")) / "porcupine" | ||
log_dir = cache_dir / "log" |
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