7011914cc5
As the tests for the recurring events have passed, the recurring events feature can now be used by default. Event if it fails, the try/except handling won't let the script crash in case something goes wrong while parsing recurring events.
95 lines
3.5 KiB
Python
95 lines
3.5 KiB
Python
#!/usr/bin/python3
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# -*- coding: utf-8 -*-
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"""
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iCalendar (parsing) module for Inky-Calendar Project
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Copyright by aceisace
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"""
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from __future__ import print_function
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from configuration import *
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from settings import ical_urls
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import arrow
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from ics import Calendar
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use_recurring_events = True
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print_events = False
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style = 'DD MMM YY HH:mm'
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if use_recurring_events == True:
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from dateutil.rrule import rrulestr, rruleset
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import re
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def fetch_events():
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"""Set timelines for filtering upcoming events"""
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timezone = get_tz()
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now = arrow.now(tz=timezone)
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beginning_of_month = now.replace(days= - now.day +1)
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near_future = now.replace(days= 30)
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further_future = now.replace(days=40)
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"""Parse the iCalendars from the urls, fixing some known errors with ics"""
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calendars = [Calendar(fix_ical(url)) for url in ical_urls]
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"""Filter any upcoming events from all iCalendars and add them to a list"""
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upcoming_events = [events for ical in calendars for events in ical.events
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if beginning_of_month <= events.end <= further_future or
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beginning_of_month <= events.begin <= near_future]
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"""Try to parse recurring events. This is clearly experimental! """
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if use_recurring_events == True:
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for ical in calendars:
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for events in ical.events:
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event_str = str(events)
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if re.search('RRULE:(.+?)\n', event_str):
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if events.all_day and events.duration.days > 1:
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events.end = events.end.replace(days=-2)
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else:
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events.begin = events.begin.to(timezone)
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events.end = events.end.to(timezone)
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try:
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rule = re.search('RRULE:(.+?)\n', event_str).group(0)[:-2]
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if re.search('UNTIL=(.+?);', rule) and not re.search('UNTIL=(.+?)Z;', rule):
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rule = re.sub('UNTIL=(.+?);', 'UNTIL='+re.search('UNTIL=(.+?);', rule).group(0)[6:-1]+'T000000Z;', rule)
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dates = rrulestr(rule, dtstart= events.begin.datetime).between(after= now.datetime, before = further_future.datetime)
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if dates:
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duration = events.duration
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for date in dates:
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cc = events.clone()
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cc.end = arrow.get(date+duration)
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cc.begin = arrow.get(date)
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upcoming_events.append(cc)
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#print("Added '{}' with new start at {}".format(cc.name, cc.begin.format('DD MMM YY')))
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except Exception as e:
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print('Something went wrong while parsing recurring events')
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pass
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"""Sort events according to their beginning date"""
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def sort_dates(event):
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return event.begin
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upcoming_events.sort(key=sort_dates)
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"""Multiday events are displayed incorrectly; fix that"""
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for events in upcoming_events:
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if events.all_day and events.duration.days > 1:
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events.end = events.end.replace(days=-2)
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if not events.all_day:
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events.begin = events.begin.to(timezone)
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events.end = events.end.to(timezone)
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""" The list upcoming_events should not be modified. If you need the data from
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this one, copy the list or the contents to another one."""
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#print(upcoming_events) # Print all events. Might look a bit messy
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"""Print upcoming events in a more appealing way"""
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if print_events == True and upcoming_events:
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line_width = max(len(i.name) for i in upcoming_events)
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for events in upcoming_events:
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print('{0} {1} | {2} | {3} | All day ='.format(events.name,
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' '* (line_width - len(events.name)), events.begin.format(style),
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events.end.format(style)), events.all_day)
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return upcoming_events
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