ccal 0.1.4

CLI tool for adding calendar events

ccal

中文文档

A CLI tool that turns natural language text or images into calendar events. Powered by LLMs.

Features

• Text input — describe an event in plain language, ccal parses it into structured fields
• Image input — extract text from screenshots/photos via OCR, then parse
• Multi-LLM support — works with OpenAI, Anthropic, Gemini, OpenRouter, Deepseek, Groq, Mistral, and more (via litellm)
• ICS export — generate standard .ics files importable by any calendar app
• Google Calendar sync — create events directly on Google Calendar via API
• Apple Calendar sync — add events via AppleScript (macOS only, auto-fallback to ICS on other platforms)
• Secure key storage — API keys stored in your system keyring, never in plain text
• Geolocation — auto-detect timezone and location for accurate event scheduling
• Stdin support — pipe text from other commands

Requirements

• Python 3.12+
• uv (recommended) or pip
• Tesseract OCR (for image input)

Installation

git clone https://github.com/your-username/ccal.git
cd ccal
uv sync

Quick Start

1. Setup

ccal setup

This will walk you through configuring:

• LLM provider and model
• API key (stored securely in system keyring)
• Default output method (ICS file, Google Calendar, or Apple Calendar)
• Google Calendar setup, including client type, auth mode, credentials location, and Calendar ID

2. Add an event

From text:

ccal add "Team meeting tomorrow at 3pm in Conference Room A"

From an image:

ccal add flyer.png

From stdin:

echo "Lunch with Alice Friday noon" | ccal add

With options:

ccal add "Dinner Friday 7pm at Luigi's" -o google       # sync to Google Calendar
ccal add "Weekly standup Mon 9am" -o apple               # add to Apple Calendar (macOS)
ccal add "Weekly standup Mon 9am" -o ics                  # export as .ics file
ccal add "会议明天下午两点" -m anthropic/claude-sonnet-4-20250514  # use a specific model
ccal add screenshot.png -l chi_sim                        # OCR with Chinese language
ccal add "Demo at 2pm" -y                                 # skip confirmation
ccal add "Demo at 2pm" --json                             # output as JSON

3. Parse only (no save)

ccal parse "Workshop next Wednesday 10am-12pm, Room 301"
ccal parse "下周一上午10点团队周会" --json

4. View config

ccal config

Commands

Command	Description
ccal add [text|image]	Parse input and create a calendar event
ccal parse [text|image]	Parse and display event fields without saving
ccal setup	Interactive configuration wizard
ccal config	Show current configuration and platform info

ccal add options

Option	Description
-o, --output	Output method: ics, google, or apple
-p, --provider	LLM provider name
-m, --model	LLM model (e.g. openai/gpt-4o)
-y, --yes	Skip confirmation, output directly
-l, --language	OCR language (e.g. chi_sim, eng+chi_sim)
--json	Output parsed event as JSON

Platform Support

Feature	macOS	Linux	Windows
ICS export	✅	✅	✅
Google Calendar	✅	✅	✅
Apple Calendar	✅	❌ fallback to ICS	❌ fallback to ICS

Configuration

Config is stored at ~/.config/ccal/config.toml. API keys are stored in your system's native keyring (macOS Keychain / Linux Secret Service / Windows Credential Locker).

For Google Calendar integration, ccal uses two different local files:

• google_credentials.json: the OAuth client credentials JSON downloaded from Google Cloud Console. This contains the client id and client secret. Keep this file around after setup.
• google_token_*.json: the cached login token created after the first successful authorization. The access token inside can expire and refresh automatically, so you usually do not need to touch it. ccal picks the cache file based on the current credentials path and auth mode.

During ccal setup, place the credentials JSON in the configured directory, or point setup directly at the JSON file. The setup tutorial also explains:

• Desktop app vs TVs and Limited Input devices
• External vs Internal
• Testing status and Test users
• how to find a Google Calendar ID
• setup-time validation of the selected Calendar ID

You can also configure Google Calendar during ccal setup through the dedicated middle step, even if your default output is not Google.

Project Structure

src/
├── main.py                  # CLI entry point (Typer)
├── config.py                # Configuration & keyring management
├── models/
│   ├── model.py             # CalendarEvent Pydantic model
│   └── llm.py               # LLM parsing via litellm
├── input/
│   ├── ocr.py               # Image text extraction (pytesseract)
│   └── geo.py               # IP-based geolocation for timezone
└── connections/
    ├── google_calendar.py   # Google Calendar API integration
    ├── apple_calendar.py    # Apple Calendar via AppleScript (macOS)
    └── ics.py               # ICS file export

License

MIT