readme

README.md

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+# CalibreSync
+
+Automatically sync eBooks from a remote Linux host to your [Calibre-Web](https://github.com/janeczku/calibre-web) library.
+
+CalibreSync connects to a remote host over SFTP, downloads new zip archives, extracts the RAR files inside them, and uploads the resulting epub/pdf files to Calibre-Web — skipping anything already uploaded. A web dashboard lets you monitor runs, browse uploaded books, and configure everything including the sync schedule.
+
+## Features
+
+- **Incremental sync** — tracks processed archives in SQLite, never re-downloads or re-uploads
+- **Duplicate prevention** — SHA-256 hash check before every upload
+- **Automatic schedule** — configure a run interval (e.g. every 60 minutes) from the dashboard
+- **SSH key auth** — paste your private key directly in the UI, never written to disk
+- **Dark web dashboard** — live stats, sync history, books table, settings
+- **Docker ready** — single `docker compose up` to get started
+
+## Screenshots
+
+| Dashboard | Settings |
+|-----------|----------|
+| Stats, recent runs, zip history | SSH, Calibre-Web, schedule |
+
+## Requirements
+
+- Docker (recommended) **or** Python 3.12+ with `unrar-free` / `unrar` installed
+- A running [Calibre-Web](https://github.com/janeczku/calibre-web) instance with uploads enabled
+- SSH access to the remote host holding the zip archives
+
+## Quick start with Docker
+
+```bash
+git clone https://git.skitnerdig.com/YOUR_USERNAME/calibresync.git
+cd calibresync
+docker compose up -d
+```
+
+Open [http://localhost:8000](http://localhost:8000) and go to **Settings** to configure:
+
+1. **Remote host** — hostname, port, username, SSH key or password, remote zip directory path
+2. **Calibre-Web** — URL, username, password
+3. **Schedule** — how often to run automatically (in minutes, 0 = manual only)
+
+Then click **Run Sync Now** on the dashboard, or wait for the scheduler to fire.
+
+The SQLite database is stored in `./data/` and survives container restarts.
+
+## Running without Docker
+
+```bash
+# Debian / Ubuntu
+sudo apt install unrar-free
+
+pip install -r requirements.txt
+uvicorn main:app --reload
+```
+
+Open [http://localhost:8000](http://localhost:8000) and follow the same setup steps.
+
+> **RAR5 archives:** `unrar-free` handles RAR4. For RAR5 you need the non-free `unrar` package.
+> See the comment in the [Dockerfile](Dockerfile) for instructions.
+
+## How it works
+
+```
+Remote host (SFTP, read-only)
+  └── *.zip
+        └── *.rar
+              ├── book.epub
+              └── book.pdf
+                    └── Calibre-Web  (/upload)
+```
+
+1. **SFTP scan** — recursively lists all `.zip` files under the configured remote path
+2. **Filter** — skips any zip already recorded in the local SQLite database
+3. **Download** — fetches new zips to a local work directory
+4. **Extract** — unzips, then unrars, collects all `.epub` and `.pdf` files
+5. **Upload** — checks SHA-256 hash against the database; uploads new files to Calibre-Web
+6. **Cleanup** — removes local temporary files after each zip is processed
+
+Remote files are **never modified or deleted**.
+
+## Project structure
+
+```
+calibresync/
+├── main.py          # FastAPI app — dashboard, settings, sync trigger
+├── sync.py          # Orchestration loop
+├── sftp.py          # SFTP connection and download
+├── extractor.py     # unzip + unrar
+├── uploader.py      # Calibre-Web API client
+├── db.py            # SQLite schema and helpers
+├── config.py        # Settings loader/saver
+├── templates/       # Jinja2 HTML templates
+├── static/          # CSS
+├── Dockerfile
+└── docker-compose.yml
+```
+
+## Dashboard pages
+
+| Page | URL | Description |
+|------|-----|-------------|
+| Dashboard | `/` | Stats, recent sync runs, recent zip archives |
+| Books | `/books` | All uploaded books with status and source |
+| Settings | `/settings` | All configuration |
+| API status | `/api/status` | JSON status endpoint |
+| API docs | `/docs` | Auto-generated FastAPI docs |
+
+## License
+
+MIT