Upload images to self-hosted static file server via sshfs.

---

Example usage: 

Upload an image on the clipboard and copy the url to the
clipboard. 

    $ imup 

Upload an image from one or more files or urls. 

    $ imup https://example.com/image.png 
    $ imup foo.png bar.png baz.png 

Upload an image from stdin. 

    $ convert foo.png -flip - | imup -

## Installation and setup.

This assumes you already have some hosted static files and ssh configured with write permissions to that directory. Images are copied to the host via `scp`. Thus authentication is deferred to other systems like VPN and SSH, and hosting is deferred to static web servers like nginx. This tool is only a convenience to normalize/strip image data and upload the files.

The client depends on `imagemagick`, `sshfs`, and `xclip`. The host only needs to serve ssh and static files.

```zsh
apt install imagemagick sshfs xclip
```

Clone the repository, and install it via tool like `pipx` or `uv`.

```zsh
uv tool install 'imup@git+https://git.allemangd.dev/me/imup.git'
```

Configure imup with `~/.config/imup.toml`. For example, my config is:

```toml
[imup]
target = "imup-host:/var/www/i.allemangd.dev"
base_url = "https://i.allemangd.dev/"
```

Granted write permissions to `/var/www/i.allemangd.dev` to my ssh user, and configure an ssh host with keys for that user.

```
# ssh config
Host imup-host
    HostName ...
    User ...
    IdentifyFile ...
```

Configure the static file host; for example on my host I have the following nginx server config:

```
# nginx config
server {
    listen 80;  
    # (ssl settings omitted)
    
    server_name i.allemangd.dev;
    
    location / {
        root /var/www/i.allemangd.dev/;
    }
}
```