Superlandings Go Assets

Asset Management & CLI Conventions

Asset Storage

Assets (images, CSS, JS) are stored in ~/.superlandings/sites/{slug}/assets/ — shared across all versions. No duplication on version rollback.

CLI Commands

# Upload (create/replace)
sl-cli site upload <site> "<path>" --file <local-file>
sl-cli site upload my-site "logo.png" --file ./logo.png
sl-cli site upload my-site "css/style.css" --file ./dist/style.css

# List
sl-cli site assets list <site>

# Remove
sl-cli site assets remove <site> "<path>"

# Remote (any command + --target <host:port>)
sl-cli site upload my-site "img.png" --file ./img.png --target dk2

Template Helper: {{asset "filename"}}

Recursively searches the shared assets directory by filename and returns the first match as a URL path.

<img src="{{asset "logo.png"}}" alt="Logo">
<link rel="stylesheet" href="{{asset "style.css"}}">

If assets/logo.png and assets/nav/logo.png both exist, resolves to /slug/logo.png (first found).

Output Convention

All commands output JSON by default:

Errors go to stderr with semantic exit codes:

Domain-Aware Serving

The daemon serves content from domains without Traefik path rewriting:

https://test-site.intrane.fr/blue.png
  → Traefik forwards to :3100/blue.png
  → daemon sees Host: test-site.intrane.fr
  → looks up site_domains → resolves slug "test-site"
  → serves sites/test-site/assets/blue.png ✅

Remote Execution Flow

Local sl-cli --target <host:port> → HTTP POST to remote daemon API → remote process action → JSON response.

Asset upload via --target: reads file locally → base64 encodes → POSTs to /api/sites/{slug}/upload → remote daemon decodes and writes to disk.

Deploying Updated Binary

scp sl-cli <user>@<host>:~/sl-cli-new
ssh <user>@<host> "sudo -u <user> pkill -f 'sl-cli backend'; \
  sudo cp ~/sl-cli-new /home/<user>/sl-cli; \
  sudo -u <user> nohup /home/<user>/sl-cli backend start --daemon --port 3100 --no-systemd > /dev/null 2>&1 &"

Gotchas

• hotify config: The daemon user needs the same ~/.hotify/config.json as the infra user or DNS/Traefik setup fails.
• Traefik permissions: /etc/traefik/*.yml must be writable by the daemon user + passwordless sudo for systemctl restart traefik.
• Template functions before Parse: Go's html/template requires .Funcs() registered before .Parse().