update-dh

#!/bin/bash
# =========================================
# update-dh — Interactive Docker Workspace Updater
# Sets the 'dh' alias via whiptail popup
# Works on QNAP / Linux with whiptail installed
# =========================================

# Check if whiptail is installed
if ! command -v whiptail >/dev/null 2>&1; then
    echo "❌ whiptail is not installed. Please install it first (e.g., opkg install whiptail)."
    exit 1
fi

# Get current dh path from bashrc, fallback to /share/docker
CURRENT_DH=$(grep "alias dh=" ~/.bashrc | cut -d"'" -f2)
CURRENT_DH=${CURRENT_DH:-/share/docker}

# Show whiptail input box (folder only, no cd)
NEW_DH=$(whiptail --title "Docker Workspace Setup" \
    --inputbox "Enter your Docker workspace folder:" 10 60 "$CURRENT_DH" 3>&1 1>&2 2>&3)

# If user pressed Cancel, exit
if [[ $? -ne 0 ]]; then
    echo "❌ Operation cancelled."
    exit 1
fi

# Use current value if empty
NEW_DH=${NEW_DH:-$CURRENT_DH}

# Remove old dh alias from bashrc
sed -i "/alias dh=/d" ~/.bashrc

# Add new dh alias
echo "alias dh='cd $NEW_DH'" >> ~/.bashrc

# Activate alias immediately
alias dh="cd $NEW_DH"

echo "✅ dh alias updated to: $NEW_DH"
echo "You can now use 'dh' to jump to your Docker workspace immediately."