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Icalendar Calendar Command Line Interface

Project description

icalcli

An iCalendar Command Line Interface

icalcli - a modification of gcalcli - is a Python command line front-end to your Calendar. It allows you to get your agenda, view weekly and monthly calendars (ascii text graphical calendar), search for events, add new events, delete events, and edit events.

Unlike gcalcli which is tied to Google Calendar, icalcli is agnostic to (abstracts away from) the actual backend calendar service. It relies on a backend interface which interacts with the backend calendar to perform all the CRUD (Create, Retrieve, Update and Delete) operations on the actual calendar. The package includes two backends:

  • The etesync_backend subpackage provides a backend interface to the EteSync calendar. In fact, icalcli was created primarily to provide a command line interface to my self hosted EteSync calendar.

  • The file_backend subpackage provides a backend interface to a calendar contained in a local ics file. This is useful as a viewer/editor of ics files. It is also useful to try out icalci without having any other backend configured.

The two included backends would also be useful to those who wish to write their own backend interfaces. icalcli requires the calendar to be presented to it as a list of icalendar events (VEVENT). It is the responsibility of the backend interface to read the actual calendar and create this list of events. It must also perform all the CRUD (Create, Retrieve, Update and Delete) operations on the actual calendar.

Requirements

Optional packages

  • pyetesync the python client library for EteSync if you want to use the EteSync backend.

Installation

Install from PyPI

pip install icalcli

Install from source

git clone https://github.com/jrvarma/icalcli.git
cd icalcli
python setup.py install

Usage

Command line arguments

icalcli provides a series of subcommands with the following functionality:

edit (e)               edit calendar events
agenda (g)             get an agenda for a time period
calw (w)               get a week-based agenda in calendar format
calm (m)               get a month agenda in calendar format
add (a)                add a detailed event to the calendar
search (s)             (regex) search for events 
sync (y)               sync the backend calendar
quit (q)               quit icalcli

By default, icalcli runs interactively as an REPL (Read Evaluate Print Loop). Run icalcli --help for more details. icalcli <subcommand> --help gives help on each subcommand.

Configuration Script

In the beginning, icalcli executes a configuration script which is expected to create the object backend_interface representing the backend interface initialized with the right authentication credentials to access the backend calendar. The configuration script is located, by default, at ~/.icalcli.py, but this can be changed with the -c option.

Example configuration for file_backend

from icalcli import ICSInterface

backend_interface = ICSInterface("/path/to/ics-file")

Example configuration for etesync_backend

This configuration assumes that all the credentials are stored in a plain text (json) file. In practice, you would use a more secure storage (perhaps, the Gnome keyring) or just read it from the terminal.

from icalcli import EtesyncInterface
import base64
import json

conf_file = '/path/to/json-file'
with open(conf_file, 'r') as fp:
    c = json.load(fp)
backend_interface = EtesyncInterface(
    c['email'], c['userPassword'], c['remoteUrl'],
    c['uid'], c['authToken'],
    base64.decodebytes(c['cipher_key'].encode('ascii')))

Screenshots

Some screenshots are available at Github:

Agenda and Week Views

Agenda and Week Views

Adding an event

Adding an event

Searching and editing events

Searching and editing events

Multi-day events

Multi-day events

Month View

Month View

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