You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
59 lines
1.8 KiB
59 lines
1.8 KiB
"""Per-capsule preferences.
|
|
|
|
Currently contains only overrides for render modes, per URL path. In the future
|
|
it may be interesting to move a few things from the config to here, such as the
|
|
text width.
|
|
|
|
This is a map from URLs to dicts. The only used key is render_mode.
|
|
"""
|
|
|
|
import json
|
|
import logging
|
|
from pathlib import Path
|
|
from typing import Optional
|
|
|
|
|
|
def load_capsule_prefs(prefs_path: Path) -> Optional[dict]:
|
|
"""Return saved capsule preferences or None on error."""
|
|
prefs = {}
|
|
try:
|
|
with open(prefs_path, "rt") as prefs_file:
|
|
prefs = json.load(prefs_file)
|
|
except (OSError, ValueError) as exc:
|
|
logging.error(f"Failed to load capsule prefs '{prefs_path}': {exc}")
|
|
return None
|
|
return prefs
|
|
|
|
|
|
def save_capsule_prefs(prefs: dict, prefs_path: Path) -> bool:
|
|
"""Save the capsule preferences. Return True on success."""
|
|
try:
|
|
with open(prefs_path, "wt") as prefs_file:
|
|
json.dump(prefs, prefs_file, indent=2)
|
|
except (OSError, ValueError) as exc:
|
|
logging.error(f"Failed to save capsule prefs '{prefs_path}': {exc}")
|
|
return False
|
|
return True
|
|
|
|
|
|
def get_url_render_mode_pref(prefs: dict, url: str) -> Optional[str]:
|
|
"""Return the desired render mode for this URL.
|
|
|
|
If the preferences contain the URL or a parent URL, the corresponding render
|
|
mode is used. If several URLs are prefixes of the `url` argument, the
|
|
longest one is used to get the matching preference.
|
|
|
|
Arguments:
|
|
- prefs: current capsule preferences.
|
|
- url: URL about to be rendered.
|
|
"""
|
|
prefix_urls = []
|
|
for key in prefs:
|
|
if url.startswith(key):
|
|
prefix_urls.append(key)
|
|
if not prefix_urls:
|
|
return None
|
|
key = max(prefix_urls, key=len)
|
|
preference = prefs[key]
|
|
return preference.get("render_mode")
|