bin/charmssh

#!/usr/bin/env bash

# This script uses Charm's Skate and Gum tools to select SSH hosts and connect
# to them.

# Check for gum and skate.
if ! test -x "$(command -v gum)"; then
    echo "Missing dependency: gum"
    echo "See github.com/charmbracelet/gum"
    exit 1
fi

if ! test -x "$(command -v skate)"; then
    echo "Missing dependency: skate"
    echo "See github.com/charmbracelet/skate"
    exit 1
fi

# Set CHARM_HOST
export CHARM_HOST="nexus.local"

# Select SSH host key from skate store with gum, get value with skate.
KEY=$(skate list -k | gum choose --limit=1)
if test -z "$KEY"; then
    exit 0
fi

VALUE=$(skate get "$KEY")

# If VALUE contains non-standard SSH port, set PORT.
HOST=$(echo "$VALUE" | cut -d ":" -f 1)

if [[ "$VALUE" == *":"* ]]; then
    PORT=$(echo "$VALUE" | cut -d ":" -f 2)
fi

# autossh into $HOST, using $PORT, if values are non-zero
if test -n "$PORT"; then
    autossh -M 0 "$HOST" -p "$PORT" -X
else
    autossh -M 0 "$HOST" -X
fi