"""
x-zic - TZDB Parser
Copyright (C) 2024 Your Name
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>.
"""
from .core.loader import FileLoader
from .core.config import TZDBConfig
from .parser import parse_zone, parse_rule, parse_link, parse_leap
from .transitions import get_transitions
try:
from ._version import __version__
except ImportError:
__version__ = "0.1.0"
__all__ = [
"read_zones",
"parse_zone",
"get_transitions",
"clear_cache",
"FileLoader",
"TZDBConfig",
"__version__",
]
# Global cache
_config = None
_loader = None
def _get_loader():
"""Initialize loader with default config"""
global _config, _loader
if _loader is None:
_config = TZDBConfig()
_loader = FileLoader(_config)
return _loader
[docs]def read_zones(region=None):
"""Read all zones or zones from specific region."""
loader = _get_loader()
if region:
from .regions import get_zones_by_region
return get_zones_by_region(region, loader)
else:
zones = []
from .regions import list_regions
for reg in list_regions():
zones.extend(get_zones_by_region(reg, loader))
return zones
def parse_zone_file(filename):
"""Parse specific zone file."""
loader = _get_loader()
return parse_zone(filename, loader)
[docs]def get_transitions(zone_name, start_year=1970, end_year=2030):
"""Get timezone transitions for a zone."""
from .transitions import get_transitions as get_transitions_impl
return get_transitions_impl(zone_name, start_year, end_year, _get_loader())
def parse_leap_seconds(filename="leapseconds"):
"""
Parse leap seconds file.
Args:
filename: Name of leap seconds file to parse
Returns:
List of leap second dictionaries
"""
loader = _get_loader()
leap_seconds = parse_leap(filename, loader)
from .parser.leap import calculate_cumulative_offsets
leap_seconds = calculate_cumulative_offsets(leap_seconds)
return [ls.to_dict() for ls in leap_seconds]
[docs]def clear_cache():
"""Clear all cached data"""
global _loader
if _loader:
_loader.clear_cache()
_loader = None