setup_tmux.sh

#!/bin/bash

TMUX_CONF="$HOME/.tmux.conf"
CONF_URL="https://gist.githubusercontent.com/n1sh1th/e4acb4859483afb9c14da0598295f540/raw/5832c7f2caa69cef203dd7d02f60273484e806ed/tmux.conf"

GREEN='\033[0;32m'
YELLOW='\033[1;33m'
RED='\033[0;31m'
NC='\033[0m' # No Color

log_info()    { echo -e "${GREEN}[INFO]${NC}  $1"; }
log_warn()    { echo -e "${YELLOW}[WARN]${NC}  $1"; }
log_error()   { echo -e "${RED}[ERROR]${NC} $1"; }

if command -v tmux &>/dev/null; then
    log_info "tmux is already installed. ($(tmux -V))"
else
    log_info "tmux not found. Installing..."
    sudo apt install tmux -y

    if command -v tmux &>/dev/null; then
        log_info "tmux installed successfully. ($(tmux -V))"
    else
        log_error "tmux installation failed. Exiting."
        exit 1
    fi
fi

log_info "Downloading tmux configuration from remote..."

# Check if curl or wget is available
if command -v curl &>/dev/null; then
    CONF_CONTENT=$(curl -fsSL "$CONF_URL")
elif command -v wget &>/dev/null; then
    CONF_CONTENT=$(wget -qO- "$CONF_URL")
else
    log_error "Neither curl nor wget found. Cannot download config."
    exit 1
fi

if [[ -z "$CONF_CONTENT" ]]; then
    log_error "Downloaded content is empty. Check the URL or your internet connection."
    exit 1
fi

if [[ -f "$TMUX_CONF" ]]; then
    log_info "Found existing $TMUX_CONF — overwriting with new config..."
    echo "$CONF_CONTENT" > "$TMUX_CONF"
else
    log_warn "$TMUX_CONF not found. Creating a new one with sudo..."
    TMPFILE=$(mktemp)
    echo "$CONF_CONTENT" > "$TMPFILE"
    sudo mv "$TMPFILE" "$TMUX_CONF"
    sudo chown "$USER":"$USER" "$TMUX_CONF"
fi

if [[ -f "$TMUX_CONF" ]]; then
    log_info "tmux config written successfully to $TMUX_CONF"
    log_info "Reload config in a running tmux session with: tmux source-file ~/.tmux.conf"
else
    log_error "Failed to write tmux config."
    exit 1
fi

log_info "Run chmod +x setup_tmux.sh && ./setup_tmux.sh"