Files
debianito-post-install/modules/utils.sh
T
stornic56 a91b0caa25 critical-fixes, swap module & gaming overhaul
- Fixed script crashes from `whiptail` Cancel/Esc under `set -e`. Added `_menu()`, `_checklist()` and `_inputbox()` wrappers with `|| true` to prevent premature exits.
- Resolved startup failures by using defaults instead of relying on unset variables with `set -u`.
- Hardened sudoers management — `_validate_sudoers()` writes to temp file, validates with `visudo -cf`, only copies if successful.
- Replaced `eval` in `_run_cmd` with safer `bash -c` execution.

Swap Management Module (`modules/swap.sh`)
- New standalone module with 9 internal functions and `manage_swap()` entry point.
- Btrfs CoW detection — applies `chattr +C` before swapfile creation to prevent mkswap rejection on Btrfs.
- Dynamic swappiness configuration — reads current system value instead of hardcoding 60, pre-fills inputbox with existing setting.
- Uses `/run/lock/debianito-swap.lock` for early init compatibility (added as option 9 in main menu).

Repository & Branch Migration (`modules/repos/migrate.sh`)
- Handles branch migration from stable (11/12) to Testing or SID with 5-screen UX flow.
- Persistent backup system — creates timestamped tar.gz backups of `/etc/apt/sources.list*`, auto-restores on apt update failure.
- SID guardrails — installs `apt-listbugs` and `apt-listchanges` before upgrade to warn about critical bugs in unstable packages.
- Dynamic menu options based on Debian version (SID shows only 1-2-3 Exit, non-SID includes backports + branch migration).
- New `_components_enabled()` helper detects current contrib/non-free state.

Gaming Module Overhaul
- Unified gaming checklist — merged i386 toggle into single prompt with lazy evaluation instead of separate pre-check.
- Lazy 32-bit architecture enablement — only enables i386 when needed (steam/lutris/i386 selected) and installs graphics drivers if `need_32bit=true`.
- New `_install_nvidia_32bit()` helper with proper driver detection, version pinning, and legacy/tesla variant handling.

Heroic & OpenRGB Downloads
- Heroic — fetches latest release from GitHub API using `jq` to extract amd64.deb URL, validates with `dpkg-deb --info`.
- OpenRGB — downloads from Codeberg Gitea API with SHA256 verification when available, fallback to `dpkg-deb` validation.
- Dynamic codename detection — now detects Bookworm vs Trixie at runtime instead of hardcoded static values for .deb download URLs.

|Other Improvements
- Renumbered main menu: 8=ZRAM, 9=Swap Management, 10=Extras, 11=Boot Rescue, 12=Exit.
- Improved `detect_storage()` — excludes loop/CD-ROM devices via `lsblk -e 7,11`, explicitly skips zram, detects USB/SD via `/sys/block/$name/removable`.
- Standardized SCROLL_HINT across all files with centralized readonly variable.
2026-07-10 01:42:57 -05:00

734 lines
22 KiB
Bash

#!/usr/bin/env bash
# Common utility functions for the post-install script
# ------------------
# Global variables
# ------------------
readonly SCROLL_HINT=" [↑↓]"
CPU_SUMMARY=""
RAM_SUMMARY=""
GPU_TYPE=""
GPU_DESC=""
GPU_VERSION=""
INTEL_GPU_DEVICE_ID=""
NVIDIA_GPU_DEVICE_ID=""
HAS_NVIDIA=false
HAS_AMD=false
HAS_INTEL=false
KERNEL_VERSION=""
DISPLAY_SERVER="unknown"
STORAGE_SUMMARY=""
WIFI_CHIPSET=""
DESKTOP_ENV=""
AUDIO_SERVER=""
# --------------------------
# Pre-flight checks
# --------------------------
check_root() {
if [ "$EUID" -eq 0 ]; then
echo -e "${RED}Do not run this script as root. Use a normal user with sudo.${NC}"
exit 1
fi
}
check_sudo() {
if ! sudo -v; then
echo -e "${RED}This script requires sudo privileges.${NC}"
exit 1
fi
}
# --------------------------------
# Time sync detection + NTP
# --------------------------------
check_system_time() {
command -v timedatectl &>/dev/null || return
local year
year=$(date +%Y)
if [ "$year" -lt 2025 ]; then
local msg="System date/time appears to be incorrect\n"
msg+="($(date '+%Y-%m-%d %H:%M')). This will prevent Debian\n"
msg+="repositories from working properly.\n\n"
msg+="Attempt automatic NTP synchronization?\n"
msg+="(requires network access and timedatectl)"
if _confirm "System Date" "$msg"; then
sync_system_time
else
echo -e "${YELLOW}Warning: System time is incorrect. Package installations may fail.${NC}"
fi
return
fi
local ntp_active
ntp_active=$(timedatectl show --property=NTP --value 2>/dev/null || echo "no")
if [ "$ntp_active" != "yes" ]; then
sync_system_time
fi
}
sync_system_time() {
command -v timedatectl &>/dev/null || return
if ! is_installed systemd-timesyncd; then
sudo DEBIAN_FRONTEND=noninteractive apt install -y systemd-timesyncd || true
fi
if ! systemctl is-enabled systemd-timesyncd &>/dev/null; then
sudo systemctl enable systemd-timesyncd || true
fi
if ! systemctl is-active systemd-timesyncd &>/dev/null; then
sudo systemctl start systemd-timesyncd || true
fi
sudo timedatectl set-ntp true || true
sleep 4
if timedatectl show --property=NTPSynchronized --value 2>/dev/null | grep -q yes; then
echo -e "${GREEN}Time synchronized: $(date '+%Y-%m-%d %H:%M')${NC}"
else
echo -e "${YELLOW}NTP sync did not complete.${NC}"
fi
}
# --------------------------------
# Debian version detection
# --------------------------------
detect_debian_version() {
if ! command -v lsb_release &> /dev/null; then
if [ -f /etc/os-release ]; then
DEBIAN_CODENAME=$(grep -oP 'VERSION_CODENAME=\K\w+' /etc/os-release 2>/dev/null || echo "")
fi
if [ -z "$DEBIAN_CODENAME" ]; then
sync_system_time || true
sudo apt update -qq 2>/dev/null && sudo apt install -y -qq lsb-release || true
fi
fi
if [ -z "$DEBIAN_CODENAME" ]; then
DEBIAN_CODENAME=$(lsb_release -cs 2>/dev/null || echo "")
fi
case "$DEBIAN_CODENAME" in
bullseye) DEBIAN_VERSION="11" ;;
bookworm) DEBIAN_VERSION="12" ;;
trixie) DEBIAN_VERSION="13" ;;
*)
echo -e "${RED}Unsupported Debian version: '$DEBIAN_CODENAME'. Only 11 (bullseye), 12 (bookworm) and 13 (trixie) are supported.${NC}"
exit 1
;;
esac
}
# ----------------------------------
# CPU and RAM info (cosmetic)
# ----------------------------------
detect_cpu_ram() {
CPU_SUMMARY=$(grep -m1 'model name' /proc/cpuinfo | sed 's/.*: //')
RAM_KB=$(grep MemTotal /proc/meminfo | awk '{print $2}')
RAM_GB=$(awk -v kb="$RAM_KB" 'BEGIN { printf "%.2f", kb / 1048576 }')
RAM_SUMMARY="${RAM_GB} GB"
}
get_cpu_summary() {
echo "$CPU_SUMMARY"
}
get_ram_summary() {
echo "$RAM_SUMMARY"
}
# ----------------------------------
# Check if running backports kernel
# ----------------------------------
is_backports_kernel() {
local kver
kver=$(uname -r)
if echo "$kver" | grep -q 'bpo'; then
echo true
else
echo false
fi
}
# ----------------------------------
# Package installed check
# ----------------------------------
is_installed() {
dpkg -l "$1" 2>/dev/null | grep -q '^ii'
}
_inst() {
if is_installed "$1"; then echo " *"; else echo ""; fi
}
_state() {
is_installed "$1" && echo "ON" || echo "OFF"
}
# ----------------------------------
# Package version lookup
# ----------------------------------
pkg_versions() {
local result=""
for pkg in "$@"; do
local ver
ver=$(apt-cache policy "$pkg" 2>/dev/null | awk 'NR==3 {print $2; exit}')
if [ -n "$ver" ] && [ "$ver" != "(none)" ]; then
result+=" - ${pkg} ${ver}\n"
else
result+=" - ${pkg}\n"
fi
done
echo -e "$result"
}
# ----------------------------------
# Kernel version
# ----------------------------------
detect_kernel() {
KERNEL_VERSION=$(uname -r)
}
# ----------------------------------
# GPU detection
# ----------------------------------
detect_gpu() {
local gpu_lines
gpu_lines=$(lspci -nn | grep -E "VGA|3D") || true
if [ -z "$gpu_lines" ]; then
GPU_TYPE="unknown"
GPU_DESC="No GPU detected"
return
fi
local has_nvidia=false has_amd=false has_intel=false
local desc_lines="" nvidia_dev_id="" intel_dev_id=""
while IFS= read -r line; do
local desc
desc=$(echo "$line" | sed -E 's/.*: //; s/ *\(rev.*//')
[ -n "$desc_lines" ] && desc_lines+=" + "
desc_lines+="$desc"
if echo "$line" | grep -qi "nvidia"; then
has_nvidia=true
[ -z "$nvidia_dev_id" ] && nvidia_dev_id=$(echo "$line" | grep -oP '10de:\K[0-9a-fA-F]+' | head -n1)
elif echo "$line" | grep -qi "amd"; then
has_amd=true
elif echo "$line" | grep -qi "intel"; then
has_intel=true
[ -z "$intel_dev_id" ] && intel_dev_id=$(echo "$line" | grep -oP '8086:\K[0-9a-fA-F]+' | head -n1)
fi
done <<< "$gpu_lines"
GPU_DESC="$desc_lines"
HAS_NVIDIA=$has_nvidia
HAS_AMD=$has_amd
HAS_INTEL=$has_intel
if $has_nvidia; then
GPU_TYPE="nvidia"
[ -n "$nvidia_dev_id" ] && NVIDIA_GPU_DEVICE_ID="$nvidia_dev_id"
elif $has_amd; then
GPU_TYPE="amd"
elif $has_intel; then
GPU_TYPE="intel"
if [ -n "$intel_dev_id" ]; then
INTEL_GPU_DEVICE_ID="0x${intel_dev_id,,}"
fi
else
GPU_TYPE="unknown"
fi
if [ "$GPU_TYPE" = "nvidia" ]; then
local nv_ver
nv_ver=$(nvidia-smi --query-gpu=driver_version --format=csv,noheader 2>/dev/null | head -1)
if [ -z "$nv_ver" ]; then
nv_ver=$(dpkg -l nvidia-driver 2>/dev/null | awk '/^ii/ {print $3}' | sed 's/-.*//')
fi
[ -n "$nv_ver" ] && GPU_VERSION="NVIDIA $nv_ver"
fi
if [ -z "$GPU_VERSION" ]; then
local mesa_ver
mesa_ver=$(dpkg -l libgl1-mesa-dri 2>/dev/null | awk '/^ii/ {print $3; exit}' | sed 's/-.*//')
[ -n "$mesa_ver" ] && GPU_VERSION="Mesa $mesa_ver"
fi
}
get_gpu_summary() {
if [ -n "$GPU_DESC" ]; then
echo "$GPU_DESC"
else
echo "Unknown/Rare"
fi
}
# -------------------------------------
# Network adapter detection
# -------------------------------------
WIFI_CHIPSET=""
WIFI_DESC=""
ETH_DESC=""
declare -a ETH_NAMES=()
declare -a ETH_DESCS=()
declare -a ETH_STATES=()
declare -a ETH_IPS=()
declare -a WIFI_NAMES=()
declare -a WIFI_DESCS=()
declare -a WIFI_STATES=()
declare -a WIFI_IPS=()
declare -a WIFI_SSIDS=()
detect_network() {
local eth_line
eth_line=$(lspci -nn | grep -i 'Ethernet controller' | head -n1) || true
if [ -n "$eth_line" ]; then
ETH_DESC=$(echo "$eth_line" | sed -E 's/^.*\]: //; s/ \[[0-9a-fA-F]{4}:[0-9a-fA-F]{4}\]//; s/ \(rev [0-9a-fA-F]+\)//')
fi
local wifi_line
# Layer 1: grep by PCI class description text
wifi_line=$(lspci -nn 2>/dev/null | grep -iE 'network controller|wireless|wi-fi|wlan|802\.11' | head -n1) || true
# Layer 2: grep by exact PCI class code 0x0280 (Network controller)
if [ -z "$wifi_line" ]; then
wifi_line=$(lspci -d ::0280 2>/dev/null | head -n1) || true
fi
# Layer 3: Broadcom vendor ID fallback (14e4)
if [ -z "$wifi_line" ]; then
wifi_line=$(lspci -nn 2>/dev/null | grep -i '14e4:' | head -n1) || true
fi
if [ -n "$wifi_line" ]; then
WIFI_CHIPSET="$wifi_line"
WIFI_DESC=$(echo "$wifi_line" | sed -E 's/^.*\]: //; s/ \[[0-9a-fA-F]{4}:[0-9a-fA-F]{4}\]//; s/ \(rev [0-9a-fA-F]+\)//')
fi
# Layer 4: USB WiFi adapter (no PCI device)
if [ -z "$wifi_line" ] && command -v lsusb &>/dev/null; then
local usb_wifi
usb_wifi=$(lsusb 2>/dev/null | grep -iE 'wireless|wifi|wlan|802\.11' | head -n1) || true
if [ -n "$usb_wifi" ]; then
WIFI_CHIPSET="$usb_wifi"
WIFI_DESC=$(echo "$usb_wifi" | sed 's/^.*ID //')
fi
fi
# ── Safeguard: if ip is not installed, skip runtime parsing ──
if ! command -v ip &>/dev/null; then
return
fi
local iface state ip4 ssid
while IFS= read -r line; do
iface=$(echo "$line" | awk -F': ' '{print $2}' | sed 's/@.*//')
state=$(echo "$line" | awk '{print $9}')
case "$iface" in
eth*|enp*|ens*|enx*|eno*)
ip4=$(ip -4 -o addr show "$iface" 2>/dev/null | awk '{print $4}')
ETH_NAMES+=("$iface")
ETH_STATES+=("$state")
ETH_IPS+=("${ip4:-}")
ETH_DESCS+=("${ETH_DESC:-}")
;;
wl*|wlp*|wlo*|wlan*)
ip4=$(ip -4 -o addr show "$iface" 2>/dev/null | awk '{print $4}')
ssid=""
[ "$state" = "UP" ] && ssid=$(iwgetid -r "$iface" 2>/dev/null || true)
WIFI_NAMES+=("$iface")
WIFI_STATES+=("$state")
WIFI_IPS+=("${ip4:-}")
WIFI_SSIDS+=("${ssid:-}")
WIFI_DESCS+=("${WIFI_DESC:-}")
;;
esac
done < <(ip -o link show 2>/dev/null)
}
# ---------------------------------------
# Display Server detection (Wayland / X11 / tty)
# ---------------------------------------
detect_displayserver() {
local st="${XDG_SESSION_TYPE:-}"
case "$st" in
wayland) DISPLAY_SERVER="Wayland" ;;
x11) DISPLAY_SERVER="X11" ;;
tty) DISPLAY_SERVER="none (tty)" ;;
*)
if [ -n "${WAYLAND_DISPLAY:-}" ]; then
DISPLAY_SERVER="Wayland"
elif [ -n "${DISPLAY:-}" ]; then
DISPLAY_SERVER="X11"
else
DISPLAY_SERVER="unknown"
fi
;;
esac
}
# ---------------------------------------
# Storage summary via lsblk (NVMe / SSD / HDD / USB-SD)
# ---------------------------------------
detect_storage() {
local parts=()
local name size rota type rm
while read -r name size rota type; do
[ "$name" = "NAME" ] && continue
echo "$name" | grep -q "zram" && continue
[ "$type" = "loop" ] || [ "$type" = "rom" ] && continue
if echo "$name" | grep -q "nvme"; then
type="NVMe"
elif [ "$rota" = "1" ]; then
type="HDD"
else
rm=$(cat /sys/block/"$name"/removable 2>/dev/null || echo 0)
if [ "$rm" = "1" ]; then
type="USB/SD"
else
type="SSD"
fi
fi
parts+=("${size} ${type}")
done < <(lsblk -d -o NAME,SIZE,ROTA,TYPE -e 7,11 2>/dev/null || true)
if [ ${#parts[@]} -eq 0 ]; then
STORAGE_SUMMARY="No disks detected"
return
fi
local result=""
local p
for p in "${parts[@]}"; do
[ -n "$result" ] && result+=" + "
result+="$p"
done
STORAGE_SUMMARY="$result"
}
# ---------------------------------------
# Desktop environment detection
# ---------------------------------------
detect_desktop_environment() {
case "${XDG_CURRENT_DESKTOP:-}" in
*GNOME*) DESKTOP_ENV="gnome" ;;
*KDE*) DESKTOP_ENV="kde" ;;
*XFCE*) DESKTOP_ENV="xfce" ;;
*) DESKTOP_ENV="other" ;;
esac
}
# ---------------------------------------
# Audio server detection (PipeWire / PulseAudio)
# ---------------------------------------
detect_audio_server() {
if command -v pw-cli &>/dev/null && pw-cli info &>/dev/null 2>&1; then
AUDIO_SERVER="pipewire"
elif command -v pactl &>/dev/null; then
AUDIO_SERVER="pulseaudio"
else
AUDIO_SERVER="none"
fi
}
# ---------------------------------------
# Intel HD Graphics generation detection
# ---------------------------------------
# Returns "gen7-" if Device ID < 0x1600, else "gen8+"
get_intel_generation() {
if [ -z "$INTEL_GPU_DEVICE_ID" ]; then
# fallback: assume gen8+
echo "gen8+"
return
fi
local dev_int
dev_int=$(printf "%d" "$INTEL_GPU_DEVICE_ID")
if [ "$dev_int" -lt 5632 ]; then # 0x1600 = 5632
echo "gen7-"
else
echo "gen8+"
fi
}
# ----------------------------------------------------------------------
# Check if backports repository is enabled (active line without #)
# ----------------------------------------------------------------------
is_backports_enabled() {
local codename="${DEBIAN_CODENAME:-}"
[ -z "$codename" ] && { echo false; return; }
local c_pattern="^[^#]*${codename}-backports[[:space:]]+"
local d_pattern="Suites:.*${codename}-backports"
# Classic embedded (sources.list)
if [ -f /etc/apt/sources.list ] && grep -Eq "$c_pattern" /etc/apt/sources.list 2>/dev/null; then
echo true; return
fi
# Classic standalone (new — debian-backports.list)
if [ -f /etc/apt/sources.list.d/debian-backports.list ] && \
grep -Eq "$c_pattern" /etc/apt/sources.list.d/debian-backports.list 2>/dev/null; then
echo true; return
fi
# Deb822 any .sources file
if grep -qr "$d_pattern" /etc/apt/sources.list.d/*.sources 2>/dev/null; then
echo true; return
fi
echo false
}
install_backports_or_stable() {
local pkg="$1"
local pkg_desc="${2:-$pkg}"
local bpo_ver=""
if [ "$(is_backports_enabled)" == true ]; then
bpo_ver=$(apt-cache madison "$pkg" 2>/dev/null | \
grep "${DEBIAN_CODENAME}-backports" | awk '{print $3}' | head -1)
fi
if is_installed "$pkg"; then
if [ -n "$bpo_ver" ]; then
local current_ver
current_ver=$(dpkg -l "$pkg" 2>/dev/null | awk '/^ii/{print $3}')
if _confirm "Backports: ${pkg}" \
"${pkg} ${current_ver} installed.\nUpgrade to backports ${bpo_ver}?"; then
_run_cmd "Backports" \
"sudo DEBIAN_FRONTEND=noninteractive apt install -y -t ${DEBIAN_CODENAME}-backports $pkg" \
"Upgrading $pkg..."
return
fi
fi
echo "$pkg already installed."
return
fi
if [ -n "$bpo_ver" ]; then
local stable_ver
stable_ver=$(apt-cache policy "$pkg" 2>/dev/null | awk 'NR==3 {print $2; exit}')
if _confirm_custom "${pkg}" "Install ${pkg_desc}?\n\n Backports: ${bpo_ver} (newer, recommended for gaming/newer HW)\n Stable: ${stable_ver:-N/A}\n\nChoose version:" "Backports" "Stable"; then
_run_cmd "Backports" \
"sudo DEBIAN_FRONTEND=noninteractive apt install -y -t ${DEBIAN_CODENAME}-backports $pkg" \
"Installing $pkg from backports..."
return
fi
_run_cmd "APT" "sudo DEBIAN_FRONTEND=noninteractive apt install -y $pkg" "Installing $pkg from stable..."
return
fi
local stable_ver
stable_ver=$(apt-cache policy "$pkg" 2>/dev/null | awk 'NR==3 {print $2; exit}')
if _confirm "Install: ${pkg}" "Install ${pkg} ${stable_ver:-}?"; then
_run_cmd "APT" "sudo DEBIAN_FRONTEND=noninteractive apt install -y $pkg" "Installing $pkg..."
fi
}
# ----------------------------------------------------------------------
# Whiptail helpers (4-block pattern)
# ----------------------------------------------------------------------
_confirm() {
whiptail --title "$1" --yes-button "Yes" --no-button "No" \
--yesno "$2" "${3:-10}" "${4:-65}"
}
_confirm_custom() {
local title="$1" text="$2" yes_btn="$3" no_btn="$4"
shift 4
local height="${1:-20}"
local width="${2:-78}"
whiptail --title "$title" --yes-button "$yes_btn" --no-button "$no_btn" \
--yesno "$text" "$height" "$width"
}
_msg() {
whiptail --title "$1" --msgbox "$2" "${3:-10}" "${4:-65}" || true
}
_menu() {
local title="$1" text="$2" h="$3" w="$4" lh="$5"; shift 5
whiptail --title "$title" --menu "$text" "$h" "$w" "$lh" "$@" 3>&1 1>&2 2>&3 || true
}
_checklist() {
local title="$1" text="$2" h="$3" w="$4" lh="$5"; shift 5
whiptail --title "$title" --checklist "$text" "$h" "$w" "$lh" "$@" 3>&1 1>&2 2>&3 || true
}
_inputbox() {
whiptail --title "$1" --inputbox "$2" "${3:-10}" "${4:-60}" "${5:-}" 3>&1 1>&2 2>&3 || true
}
_validate_sudoers() {
local content="$1" dest="$2"
local tmpfile
tmpfile=$(mktemp) || return 1
echo "$content" > "$tmpfile"
if ! visudo -cf "$tmpfile" &>/dev/null; then
local err
err=$(visudo -cf "$tmpfile" 2>&1 || true)
rm -f "$tmpfile"
_msg "Sudoers Error" "Invalid sudoers syntax in:\n\n${err}\n\nFile was NOT written.\nThis prevents broken sudo access." 12 70
return 1
fi
sudo cp "$tmpfile" "$dest"
sudo chmod 0440 "$dest"
rm -f "$tmpfile"
}
_pause() {
echo ""
echo "Press [ENTER] to continue..."
read -r
}
# Blocks 2-4: clear → run → pause
_run_cmd() {
local title="$1" command="$2" success_msg="${3:-Running...}"
clear
echo -e "${GREEN}[+]${NC} $success_msg"
echo "──────────────────────────────────────────────"
bash -c "$command"
local rc=$?
echo "──────────────────────────────────────────────"
if [ $rc -eq 0 ]; then
echo -e "${GREEN}[+]${NC} Done."
else
echo -e "${RED}[-]${NC} Failed (exit code: $rc)."
fi
_pause
}
# Blocks 1-4: confirm → clear → run → pause
_run() {
if _confirm "$1" "$2"; then
_run_cmd "$1" "$3" "$4"
fi
}
_is_headless() {
[ -z "${DISPLAY:-}" ] && [ -z "${WAYLAND_DISPLAY:-}" ]
}
_run_install() {
local pkg="$1"
local ver
ver=$(apt-cache policy "$pkg" 2>/dev/null | awk 'NR==3 {print $2; exit}')
[ -z "$ver" ] && ver="(version unknown)"
if _confirm "Install: ${pkg}" "Install ${pkg}\nVersion: ${ver}?"; then
_run_cmd "Install" "sudo DEBIAN_FRONTEND=noninteractive apt install -y $pkg" "Installing $pkg..."
fi
}
_run_install_batch() {
local pkgs=("$@")
[ ${#pkgs[@]} -eq 0 ] && return 0
local ver_list=""
for pkg in "${pkgs[@]}"; do
local ver
ver=$(apt-cache policy "$pkg" 2>/dev/null | awk 'NR==3 {print $2; exit}')
ver_list+=" - ${pkg} ${ver:-unknown}\n"
done
if _confirm "Install" "Install these packages?\n${ver_list}"; then
_run_cmd "Install" "sudo DEBIAN_FRONTEND=noninteractive apt install -y ${pkgs[*]}" "Installing..."
fi
}
_run_install_pkg() {
local pkg="$1"
local ver
ver=$(apt-cache policy "$pkg" 2>/dev/null | awk 'NR==3 {print $2; exit}')
[ -z "$ver" ] && ver="(unknown)"
if _confirm "Install: ${pkg}" "Package: ${pkg}\nVersion: ${ver}\n\nProceed with installation?"; then
_run_cmd "Install" "sudo DEBIAN_FRONTEND=noninteractive apt install -y $pkg" "Installing $pkg..."
fi
}
get_backports_kernel_version() {
local ver
ver=$(apt-cache policy linux-image-amd64 2>/dev/null | \
grep -E '^[[:space:]]+[0-9]+\.[0-9]+\.[0-9]+.*~bpo' | head -n1 | awk '{print $1}')
if [ -n "$ver" ]; then
echo "$ver"
else
echo "unknown"
fi
}
# ----------------------------------
# Language helpers
# ----------------------------------
_detect_lang() {
local sys_lang
sys_lang=$(echo "${LANG:-en}" | cut -c1-2 | tr '[:upper:]' '[:lower:]')
echo "$sys_lang"
}
_detect_lang_pkg() {
local base="$1"
local lang2
lang2=$(_detect_lang)
[ "$lang2" = "en" ] && echo "" && return
local full="${LANG%%.*}"
local hyphenated_full
hyphenated_full=$(echo "$full" | tr '[:upper:]' '[:lower:]' | tr '_' '-')
local pkg
pkg=$(apt-cache search "^${base}-${hyphenated_full}$" 2>/dev/null | awk 'NR==1{print $1}')
[ -z "$pkg" ] && pkg=$(apt-cache search "^${base}-${lang2}$" 2>/dev/null | awk 'NR==1{print $1}')
[ -z "$pkg" ] && pkg=$(apt-cache search "^${base}-all$" 2>/dev/null | awk 'NR==1{print $1}')
echo "$pkg"
}
# ----------------------------------
# Network connectivity check
# ----------------------------------
_check_network() {
local target="${1:-deb.debian.org}"
if command -v ping &>/dev/null; then
ping -c 1 -W 3 "$target" &>/dev/null && return 0
fi
if command -v wget &>/dev/null; then
wget -q --timeout=5 --spider "http://${target}" &>/dev/null && return 0
fi
if command -v curl &>/dev/null; then
curl -s --connect-timeout 5 -o /dev/null "http://${target}" &>/dev/null && return 0
fi
return 1
}
# ----------------------------------
# LightDM configuration
# ----------------------------------
_configure_lightdm() {
command -v lightdm &>/dev/null || return 0
if ! is_installed lightdm-gtk-greeter-settings; then
echo -e "${YELLOW}Installing lightdm-gtk-greeter-settings...${NC}"
sudo DEBIAN_FRONTEND=noninteractive apt install -y lightdm-gtk-greeter-settings
fi
local conf_dir="/etc/lightdm/lightdm.conf.d"
local conf_file="${conf_dir}/99-show-users.conf"
if [ -f "$conf_file" ] && grep -q '^greeter-hide-users=false' "$conf_file"; then
return
fi
sudo mkdir -p "$conf_dir"
printf '[Seat:*]\ngreeter-hide-users=false\n' | sudo tee "$conf_file" > /dev/null
echo -e "${GREEN}LightDM configured to show user list.${NC}"
}