Swiftbar plug-in for displaying Tailscale's --accept-routes and --exit-node status

tailscale.30s.sh

#!/bin/sh
# Swiftbar plugin for displaying Tailscale's --accept-routes and --exit-node status
# 
# Status indicators:
# ✅ = accepting routes
# ❌ = not accepting routes (or accepting, but no peers advertising routes)
# ➡️ = using an exit node
# ❓ = Tailscale not running
#
# Possible outputs:
# TS✅    = Tailscale running, accepting routes
# TS❌    = Tailscale running, not accepting routes
# TS✅➡️  = Tailscale running, accepting routes, using exit node
# TS❌➡️  = Tailscale running, not accepting routes, using exit node
# TS❓    = Tailscale not running

if ! output=$(/Applications/Tailscale.app/Contents/MacOS/Tailscale status --json 2>/dev/null); then
    echo "TS❓"
    exit 1
fi

jq -r '"TS" + (
    if any(.Health[]; contains("Some peers are advertising")) then 
        "❌" 
    else 
        "✅" 
    end
) + (
    .ExitNodeStatus | if . then "➡️" else "" end
)' <<<"$output"