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# decal - a simple calendar with caldav events
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# Dependencies
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```
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pip install caldav
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```
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#!/usr/bin/python
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import configparser
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import datetime
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import calendar
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import caldav
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import argparse
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import os
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import json
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import re
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config = configparser.ConfigParser()
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Version = "%(prog)s 0.1"
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configpath = os.getenv("HOME")+"/.config/decal.conf"
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config.read(configpath)
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#define arguments
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today = datetime.date.today()
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parser = argparse.ArgumentParser(description="Cal with events.")
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parser.add_argument("year",
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action="store",
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default=today.year,
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nargs="?",
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type=int)
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parser.add_argument("month",
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action="store",
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default=today.month,
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nargs="?",
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type=int)
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parser.add_argument("day",
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action="store",
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default=today.day,
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nargs="?",
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type=int)
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parser.add_argument("-v", "--version",
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action="version",
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version=Version,
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help="Display the version of the program")
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parser.add_argument("--json",
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action="store_true",
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help="Dump events output to json")
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parser.add_argument("--create",
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action="store_true",
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help="Create a new event")
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parser.add_argument("--calendar",
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action="append",
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help="Specify a calendar (or multiple calendars) to sync from")
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parser.add_argument("-1",
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action="store_true",
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help="show only a single month (default)")
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parser.add_argument("-3",
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action="store_true",
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help="show three months spanning the date")
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parser.add_argument("-y",
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action="store_true",
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help="show the whole year")
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parser.add_argument("-n",
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action="store_const",
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const=int,
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help="show n months")
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args = vars(parser.parse_args())
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#check some stuff, do some warnings, initiate the config, etc.
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if not os.path.exists(configpath):
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config['DEFAULT'] = {'uri': 'your caldap server here',
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'user': 'your username here',
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'password': 'your pass here'}
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print("Creating an empty config in ~/.config/decal.conf")
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with open(configpath,'w') as configfile:
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config.write(configfile)
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configfile.close()
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print("To properly utilize decal, please fill out the fields in the config")
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exit(1)
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for arg in ("user","password","uri"):
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if not arg in config['DEFAULT']:
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print("The config is incomplete, please check the \""+arg+"\" field")
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exit(1)
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if config['DEFAULT']['uri'] == "your caldap server here":
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print("To properly utilize decal, please fill out the fields in the config")
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exit(1)
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#actual works begins here
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#generate the actual calendar, line by line, output an array of lines.
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#it works trust me, idk what is happening in this one but it works.
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def gencal(year,month,start_on_sunday=True,cell_modifier=lambda d: d,append_year=True):
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firstweekday = 0
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if start_on_sunday:
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firstweekday = 6
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cal = calendar.Calendar(firstweekday=firstweekday)
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lines = [""]*6
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monthstart = False
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counter = 0
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for date in cal.itermonthdates(year,month):
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lines[counter//7]
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day = str(date)[-2:]
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if day == "01":
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monthstart = not monthstart
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if monthstart:
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lines[counter//7] += cell_modifier(day)
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else:
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lines[counter//7] += " "
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lines[counter//7] +=" "
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counter+=1
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month = datetime.date(year,month,1).strftime("%B %Y")
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padding = (len(lines[0])-len(month))//2
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rpadding = len(lines[0])%(padding+len(month)+padding)
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if start_on_sunday:
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lines.insert(0,"Su Mo Tu We Th Fr Sa ")
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else:
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lines.insert(0,"Mo Tu We Th Fr Sa Su ")
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lines.insert(0,(" "*padding)+month+(" "*(padding+rpadding)))
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lines[-1] += " "*(21-len(lines[-1]))
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return lines
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color_names = {
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"red":"0;31",
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"green":"0;32",
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"brown":"0;33",
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"orange":"0;33",
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"blue":"0;34",
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"purple":"0;35",
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"cyan":"0;36",
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"yellow":"1;33",
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"white":"1;37",
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"blink":"5",
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"bold":"1",
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"italic":"3",
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"underline":"4",
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"inverse":"7",
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"strikethrough":"9",
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"light red":"1;31",
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"light green":"1;32",
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"light blue":"1;34",
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"light purple":"1;36",
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"light cyan":"0;37"
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}
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def colorize(text,color):
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if color in color_names:
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return "\033["+color_names[color]+"m"+text+"\033[0m"
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elif re.match("(\d{1,3}),(\d{1,3}),(\d{1,3})",color):
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color = "\\"+re.sub("(\d{1,3}),(\d{1,3}),(\d{1,3})","38;2;\\1;\\2;\\3m",color)
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return color+text+"\033[0m"
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def span(year,month,offset):
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return year+((month+offset-1)//12),((month+offset-1)%12)+1
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def getbounds(y,m,offset):
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start = datetime.date(y,m,1)
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postnextmonth = span(y,m,offset)
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nextmonth = span(postnextmonth[0],postnextmonth[1],-1)
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end = datetime.date(nextmonth[0],
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nextmonth[1],
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(datetime.date(postnextmonth[0],postnextmonth[1],1)-datetime.timedelta(days=1)).day)
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return start,end
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start = None
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end = None
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if args["1"]:
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start,end = getbounds(args["year"],args["month"],1)
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elif args["3"]:
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y,m = span(args["year"],args["month"],-1)
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start,end = getbounds(y,m,3)
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elif args["n"]:
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start,end = getbounds(args["year"],args["month"],args["n"])
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else:
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start,end = getbounds(args["year"],args["month"],1)
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client = caldav.DAVClient(url = config['DEFAULT']['uri'],
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username = config['DEFAULT']['user'],
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password = config['DEFAULT']['password'])
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principal = client.principal()
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calendars = principal.calendars()
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if "calendar" in config['DEFAULT']:
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calendars2 = []
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cals = config['DEFAULT']["calendar"].split(",")
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for cal in calendars:
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if cal.name in cal:
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calendars2.append(cal)
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calendars = calendars2
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events = []
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for calendar in calendars:
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events_fetched = calendar.date_search(start,end)
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for event in events_fetched:
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if not event in events:
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events.append(event)
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