{ config, lib, pkgs, ... }: with lib; let cfg = config.services.login-display; in { options.services.login-display = { enable = mkEnableOption "login information display on SSH sessions"; showSmartStatus = mkOption { type = types.bool; default = false; description = "Show SMART disk health status"; }; smartDrives = mkOption { type = types.attrsOf types.str; default = {}; description = "Drives to monitor for SMART status (device path -> name mapping)"; example = { "/dev/disk/by-id/ata-Samsung_SSD" = "System_SSD"; }; }; showSystemInfo = mkOption { type = types.bool; default = true; description = "Show basic system information (hostname, uptime, load)"; }; showDiskUsage = mkOption { type = types.bool; default = false; description = "Show disk usage information"; }; diskUsagePaths = mkOption { type = types.listOf types.str; default = [ "/" ]; description = "Paths to check for disk usage"; }; showBorgStatus = mkOption { type = types.bool; default = false; description = "Show last borg backup status"; }; showSnapraidStatus = mkOption { type = types.bool; default = false; description = "Show SnapRAID sync and scrub status"; }; }; config = mkIf cfg.enable { # Add smartmontools if SMART status is enabled environment.systemPackages = mkIf cfg.showSmartStatus [ pkgs.smartmontools ]; # Configure shell login initialization programs.zsh.loginShellInit = mkIf config.programs.zsh.enable ( let # ANSI color codes for truecolor (using \033 for better compatibility) # Gruvbox Hard Dark theme colors to match nvim colors = { reset = "\\033[0m"; dim = "\\033[2m"; aqua = "\\033[38;2;142;192;124m"; # Gruvbox aqua #8ec07c blue = "\\033[38;2;131;165;152m"; # Gruvbox blue #83a598 green = "\\033[38;2;184;187;38m"; # Gruvbox green #b8bb26 yellow = "\\033[38;2;250;189;47m"; # Gruvbox yellow #fabd2f orange = "\\033[38;2;254;128;25m"; # Gruvbox orange #fe8019 red = "\\033[38;2;251;73;52m"; # Gruvbox red #fb4934 gray = "\\033[38;2;146;131;116m"; # Gruvbox gray #928374 }; # Build SMART status display smartStatusCode = optionalString cfg.showSmartStatus '' ${concatStringsSep "\n" (mapAttrsToList (device: name: '' if [[ -e "${device}" ]]; then # Get health status if [[ "${device}" == *"nvme"* ]]; then HEALTH_OUTPUT=$(sudo ${pkgs.smartmontools}/bin/smartctl -d nvme -H "${device}" 2>/dev/null) else HEALTH_OUTPUT=$(sudo ${pkgs.smartmontools}/bin/smartctl -H "${device}" 2>/dev/null) fi if HEALTH=$(echo "$HEALTH_OUTPUT" | ${pkgs.gnugrep}/bin/grep -o "PASSED\|FAILED" | head -1); then : # HEALTH is set else HEALTH="UNKNOWN" fi # Get temperature TEMP="N/A" if [[ "$HEALTH" == "PASSED" ]]; then if [[ "${device}" == *"nvme"* ]]; then SMART_DATA=$(sudo ${pkgs.smartmontools}/bin/smartctl -d nvme -A "${device}" 2>/dev/null) TEMP=$(echo "$SMART_DATA" | ${pkgs.gawk}/bin/awk '/^Temperature:/ {print $2}' | head -1) [[ -n "$TEMP" && "$TEMP" =~ ^[0-9]+$ ]] && TEMP="''${TEMP}" || TEMP="N/A" else SMART_DATA=$(sudo ${pkgs.smartmontools}/bin/smartctl -A "${device}" 2>/dev/null) TEMP=$(echo "$SMART_DATA" | ${pkgs.gawk}/bin/awk '/Temperature_Celsius/ {print $10}' | head -1) [[ -n "$TEMP" && "$TEMP" =~ ^[0-9]+$ ]] && TEMP="''${TEMP}" || TEMP="N/A" fi fi # Color-code status and temperature if [[ "$HEALTH" == "PASSED" ]]; then STATUS="\\033[38;2;184;187;38m✓\\033[0m" HEALTH_COLOR="\\033[38;2;184;187;38m" # Color temp based on value if [[ "$TEMP" =~ ^[0-9]+$ ]]; then if [[ $TEMP -ge 70 ]]; then TEMP_COLOR="\\033[38;2;251;73;52m" elif [[ $TEMP -ge 50 ]]; then TEMP_COLOR="\\033[38;2;254;128;25m" else TEMP_COLOR="\\033[38;2;250;189;47m" fi TEMP_STR="$(printf "%b" "''${TEMP_COLOR}''${TEMP}°C\\033[0m")" else TEMP_STR="$(printf "%b" "\\033[2m$TEMP\\033[0m")" fi elif [[ "$HEALTH" == "FAILED" ]]; then STATUS="\\033[38;2;251;73;52m✗\\033[0m" HEALTH_COLOR="\\033[38;2;251;73;52m" TEMP_STR="$(printf "%b" "\\033[2m$TEMP\\033[0m")" else STATUS="\\033[38;2;250;189;47m⚠\\033[0m" HEALTH_COLOR="\\033[38;2;250;189;47m" TEMP_STR="$(printf "%b" "\\033[2m$TEMP\\033[0m")" fi printf " %b \\033[2m%-15s\\033[0m %b%-7s\\033[0m %s\n" "$STATUS" "${name}" "$HEALTH_COLOR" "$HEALTH" "$TEMP_STR" else printf " \\033[38;2;250;189;47m⚠\\033[0m \\033[2m%-15s\\033[0m \\033[38;2;251;73;52m%-20s\\033[0m\n" "${name}" "Not found" fi '') cfg.smartDrives)} ''; # Build system info display systemInfoCode = optionalString cfg.showSystemInfo '' # Parse uptime UPTIME_STR=$(uptime | ${pkgs.gawk}/bin/awk '{ match($0, /up\s+(.+?),\s+[0-9]+\s+user/, arr) if (arr[1] != "") { gsub(/^ +| +$/, "", arr[1]) # Shorten format: "5 days, 3:42" -> "5d 3h" gsub(/ days?,/, "d", arr[1]) gsub(/ hours?,/, "h", arr[1]) gsub(/ mins?,/, "m", arr[1]) gsub(/:[0-9]+$/, "", arr[1]) print arr[1] } }') LOAD=$(uptime | ${pkgs.gawk}/bin/awk -F'load average:' '{gsub(/^ +| +$/, "", $2); print $2}') printf " \\033[38;2;142;192;124m%s\\033[0m \\033[2m·\\033[0m \\033[2m↑\\033[0m %s \\033[2m· load\\033[0m %s\n" "$(hostname)" "$UPTIME_STR" "$LOAD" ''; # Build disk usage display with bar diskUsageCode = optionalString cfg.showDiskUsage '' ${concatMapStringsSep "\n" (path: '' DF_OUTPUT=$(df -h "${path}" | ${pkgs.gawk}/bin/awk 'NR==2 {print $3, $2, $5}') read -r USED TOTAL PCT <<< "$DF_OUTPUT" PCT_NUM=''${PCT%\%} # Create progress bar (10 chars) FILLED=$((PCT_NUM / 10)) EMPTY=$((10 - FILLED)) BAR="" for ((i=0; i/dev/null || echo "") SNAPRAID_SCRUB_LOG=$(journalctl -u snapraid-scrub.service -n 100 --no-pager --output=cat 2>/dev/null || echo "") # Parse sync status if [[ -n "$SNAPRAID_SYNC_LOG" ]]; then # Check for completion messages if echo "$SNAPRAID_SYNC_LOG" | ${pkgs.gnugrep}/bin/grep -q "Everything OK"; then SYNC_STATUS="✓" SYNC_COLOR="\\033[38;2;184;187;38m" # Get timestamp SYNC_TIMESTAMP=$(journalctl -u snapraid-sync.service --output=short-iso -n 100 --no-pager 2>/dev/null | ${pkgs.gnugrep}/bin/grep "Everything OK" | tail -1 | ${pkgs.gawk}/bin/awk '{print $1}') if [[ -n "$SYNC_TIMESTAMP" ]]; then SYNC_EPOCH=$(date -d "$SYNC_TIMESTAMP" +%s 2>/dev/null || echo "0") NOW_EPOCH=$(date +%s) DIFF_SECONDS=$((NOW_EPOCH - SYNC_EPOCH)) if [[ $DIFF_SECONDS -lt 3600 ]]; then SYNC_TIME="$((DIFF_SECONDS / 60))m ago" elif [[ $DIFF_SECONDS -lt 86400 ]]; then SYNC_TIME="$((DIFF_SECONDS / 3600))h ago" else SYNC_TIME="$((DIFF_SECONDS / 86400))d ago" fi # Adjust color if old if [[ $DIFF_SECONDS -gt 172800 ]]; then SYNC_STATUS="✗" SYNC_COLOR="\\033[38;2;251;73;52m" elif [[ $DIFF_SECONDS -gt 86400 ]]; then SYNC_STATUS="⚠" SYNC_COLOR="\\033[38;2;250;189;47m" fi else SYNC_TIME="Unknown" fi # Extract stats FILES_SYNCED=$(echo "$SNAPRAID_SYNC_LOG" | ${pkgs.gnugrep}/bin/grep -oP "equal\s+\K[0-9]+" | tail -1) FILES_ADDED=$(echo "$SNAPRAID_SYNC_LOG" | ${pkgs.gnugrep}/bin/grep -oP "added\s+\K[0-9]+" | tail -1) FILES_REMOVED=$(echo "$SNAPRAID_SYNC_LOG" | ${pkgs.gnugrep}/bin/grep -oP "removed\s+\K[0-9]+" | tail -1) FILES_UPDATED=$(echo "$SNAPRAID_SYNC_LOG" | ${pkgs.gnugrep}/bin/grep -oP "updated\s+\K[0-9]+" | tail -1) # Build sync details SYNC_DETAILS="" [[ -n "$FILES_ADDED" && "$FILES_ADDED" != "0" ]] && SYNC_DETAILS="$SYNC_DETAILS, $FILES_ADDED added" [[ -n "$FILES_REMOVED" && "$FILES_REMOVED" != "0" ]] && SYNC_DETAILS="$SYNC_DETAILS, $FILES_REMOVED removed" [[ -n "$FILES_UPDATED" && "$FILES_UPDATED" != "0" ]] && SYNC_DETAILS="$SYNC_DETAILS, $FILES_UPDATED updated" SYNC_DETAILS=$(echo "$SYNC_DETAILS" | sed 's/^, //') if [[ -n "$FILES_SYNCED" ]]; then if [[ -n "$SYNC_DETAILS" ]]; then printf " %b%s\\033[0m \\033[2mLast sync\\033[0m %b%s\\033[0m \\033[2m%s files (%s)\\033[0m\n" "$SYNC_COLOR" "$SYNC_STATUS" "$SYNC_COLOR" "$SYNC_TIME" "$FILES_SYNCED" "$SYNC_DETAILS" else printf " %b%s\\033[0m \\033[2mLast sync\\033[0m %b%s\\033[0m \\033[2m%s files\\033[0m\n" "$SYNC_COLOR" "$SYNC_STATUS" "$SYNC_COLOR" "$SYNC_TIME" "$FILES_SYNCED" fi else printf " %b%s\\033[0m \\033[2mLast sync\\033[0m %b%s\\033[0m\n" "$SYNC_COLOR" "$SYNC_STATUS" "$SYNC_COLOR" "$SYNC_TIME" fi elif echo "$SNAPRAID_SYNC_LOG" | ${pkgs.gnugrep}/bin/grep -q "error\|Error\|ERROR"; then SYNC_STATUS="✗" SYNC_COLOR="\\033[38;2;251;73;52m" printf " %b%s\\033[0m \\033[2mLast sync\\033[0m %bFAILED\\033[0m\n" "$SYNC_COLOR" "$SYNC_STATUS" "$SYNC_COLOR" else SYNC_STATUS="⚠" printf " %b%s\\033[0m \\033[2mLast sync\\033[0m \\033[38;2;250;189;47mUnknown\\033[0m\n" "$SYNC_STATUS" fi else printf " \\033[38;2;250;189;47m⚠\\033[0m \\033[2mLast sync\\033[0m \\033[2mNever run\\033[0m\n" fi # Parse scrub status if [[ -n "$SNAPRAID_SCRUB_LOG" ]]; then if echo "$SNAPRAID_SCRUB_LOG" | ${pkgs.gnugrep}/bin/grep -q "Everything OK"; then SCRUB_STATUS="✓" SCRUB_COLOR="\\033[38;2;184;187;38m" # Get timestamp SCRUB_TIMESTAMP=$(journalctl -u snapraid-scrub.service --output=short-iso -n 100 --no-pager 2>/dev/null | ${pkgs.gnugrep}/bin/grep "Everything OK" | tail -1 | ${pkgs.gawk}/bin/awk '{print $1}') if [[ -n "$SCRUB_TIMESTAMP" ]]; then SCRUB_EPOCH=$(date -d "$SCRUB_TIMESTAMP" +%s 2>/dev/null || echo "0") NOW_EPOCH=$(date +%s) DIFF_SECONDS=$((NOW_EPOCH - SCRUB_EPOCH)) if [[ $DIFF_SECONDS -lt 3600 ]]; then SCRUB_TIME="$((DIFF_SECONDS / 60))m ago" elif [[ $DIFF_SECONDS -lt 86400 ]]; then SCRUB_TIME="$((DIFF_SECONDS / 3600))h ago" else SCRUB_TIME="$((DIFF_SECONDS / 86400))d ago" fi # Adjust color if old (scrub is weekly so >10d is concerning) if [[ $DIFF_SECONDS -gt 864000 ]]; then SCRUB_STATUS="⚠" SCRUB_COLOR="\\033[38;2;250;189;47m" fi else SCRUB_TIME="Unknown" fi printf " %b%s\\033[0m \\033[2mLast scrub\\033[0m %b%s\\033[0m \\033[2mNo errors\\033[0m\n" "$SCRUB_COLOR" "$SCRUB_STATUS" "$SCRUB_COLOR" "$SCRUB_TIME" elif echo "$SNAPRAID_SCRUB_LOG" | ${pkgs.gnugrep}/bin/grep -q "error"; then ERROR_COUNT=$(echo "$SNAPRAID_SCRUB_LOG" | ${pkgs.gnugrep}/bin/grep -oP "[0-9]+\s+error" | ${pkgs.gawk}/bin/awk '{print $1}' | tail -1) SCRUB_STATUS="✗" SCRUB_COLOR="\\033[38;2;251;73;52m" if [[ -n "$ERROR_COUNT" ]]; then printf " %b%s\\033[0m \\033[2mLast scrub\\033[0m %b%s error(s)\\033[0m\n" "$SCRUB_COLOR" "$SCRUB_STATUS" "$SCRUB_COLOR" "$ERROR_COUNT" else printf " %b%s\\033[0m \\033[2mLast scrub\\033[0m %bErrors detected\\033[0m\n" "$SCRUB_COLOR" "$SCRUB_STATUS" "$SCRUB_COLOR" fi else printf " \\033[38;2;250;189;47m⚠\\033[0m \\033[2mLast scrub\\033[0m \\033[38;2;250;189;47mUnknown\\033[0m\n" fi else printf " \\033[38;2;250;189;47m⚠\\033[0m \\033[2mLast scrub\\033[0m \\033[2mNever run\\033[0m\n" fi ''; # Build borg backup status display borgStatusCode = optionalString cfg.showBorgStatus '' # Query journalctl for borg-backup.service BORG_LOG=$(journalctl -u borg-backup.service -n 100 --no-pager --output=cat 2>/dev/null || echo "") if [[ -z "$BORG_LOG" ]]; then # Service never ran printf " \\033[38;2;250;189;47m⚠\\033[0m \\033[2mNever run\\033[0m\n" else # Check if last backup succeeded if echo "$BORG_LOG" | ${pkgs.gnugrep}/bin/grep -q "Backup process completed successfully"; then STATUS_SYMBOL="\\033[38;2;184;187;38m✓\\033[0m" STATUS_COLOR="\\033[38;2;184;187;38m" # Get timestamp of last successful backup LAST_TIMESTAMP=$(journalctl -u borg-backup.service --output=short-iso -n 100 --no-pager 2>/dev/null | ${pkgs.gnugrep}/bin/grep "Backup process completed successfully" | tail -1 | ${pkgs.gawk}/bin/awk '{print $1}') if [[ -n "$LAST_TIMESTAMP" ]]; then # Calculate time ago LAST_EPOCH=$(date -d "$LAST_TIMESTAMP" +%s 2>/dev/null || date -j -f "%Y-%m-%dT%H:%M:%S%z" "$LAST_TIMESTAMP" +%s 2>/dev/null || echo "0") NOW_EPOCH=$(date +%s) DIFF_SECONDS=$((NOW_EPOCH - LAST_EPOCH)) if [[ $DIFF_SECONDS -lt 3600 ]]; then TIME_AGO="$((DIFF_SECONDS / 60))m ago" elif [[ $DIFF_SECONDS -lt 86400 ]]; then TIME_AGO="$((DIFF_SECONDS / 3600))h ago" else TIME_AGO="$((DIFF_SECONDS / 86400))d ago" fi # Adjust color based on age if [[ $DIFF_SECONDS -gt 172800 ]]; then # > 48h - red STATUS_SYMBOL="\\033[38;2;251;73;52m✗\\033[0m" STATUS_COLOR="\\033[38;2;251;73;52m" elif [[ $DIFF_SECONDS -gt 86400 ]]; then # 24-48h - yellow STATUS_SYMBOL="\\033[38;2;250;189;47m⚠\\033[0m" STATUS_COLOR="\\033[38;2;250;189;47m" fi else TIME_AGO="Unknown" fi # Extract archive statistics from borg output # Look for lines like: "Archive name: ..." and "This archive: X.XX GB" ARCHIVE_NAME=$(echo "$BORG_LOG" | ${pkgs.gnugrep}/bin/grep -oP "Archive name: \K.*" | tail -1) ARCHIVE_SIZE=$(echo "$BORG_LOG" | ${pkgs.gnugrep}/bin/grep -oP "(Original size|This archive):\s+\K[0-9.]+ [KMGT]?B" | tail -1) COMPRESSED_SIZE=$(echo "$BORG_LOG" | ${pkgs.gnugrep}/bin/grep -oP "Compressed size:\s+\K[0-9.]+ [KMGT]?B" | tail -1) DEDUPLICATED_SIZE=$(echo "$BORG_LOG" | ${pkgs.gnugrep}/bin/grep -oP "Deduplicated size:\s+\K[0-9.]+ [KMGT]?B" | tail -1) FILES_COUNT=$(echo "$BORG_LOG" | ${pkgs.gnugrep}/bin/grep -oP "Number of files:\s+\K[0-9]+" | tail -1) # Display main status line printf " %b \\033[2mLast backup\\033[0m %b%s\\033[0m" "$STATUS_SYMBOL" "$STATUS_COLOR" "$TIME_AGO" # Add archive size if available if [[ -n "$DEDUPLICATED_SIZE" ]]; then printf " \\033[2m%s\\033[0m" "$DEDUPLICATED_SIZE" elif [[ -n "$ARCHIVE_SIZE" ]]; then printf " \\033[2m%s\\033[0m" "$ARCHIVE_SIZE" fi printf "\n" # Display additional details if available if [[ -n "$ARCHIVE_SIZE" ]] && [[ -n "$COMPRESSED_SIZE" ]] && [[ -n "$DEDUPLICATED_SIZE" ]]; then printf " \\033[2m Original: %s Compressed: %s Dedup: %s\\033[0m\n" "$ARCHIVE_SIZE" "$COMPRESSED_SIZE" "$DEDUPLICATED_SIZE" fi if [[ -n "$FILES_COUNT" ]]; then printf " \\033[2m Files: %s\\033[0m\n" "$FILES_COUNT" fi else # Check for errors if echo "$BORG_LOG" | ${pkgs.gnugrep}/bin/grep -q "ERROR"; then STATUS_SYMBOL="\\033[38;2;251;73;52m✗\\033[0m" STATUS_TEXT="FAILED" ERROR_MSG=$(echo "$BORG_LOG" | ${pkgs.gnugrep}/bin/grep "ERROR" | tail -1 | ${pkgs.gawk}/bin/awk '{print substr($0, index($0,$2))}' | cut -c1-60) printf " %b \\033[2mLast backup\\033[0m \\033[38;2;251;73;52m%s\\033[0m\n" "$STATUS_SYMBOL" "$STATUS_TEXT" if [[ -n "$ERROR_MSG" ]]; then printf " \\033[2m %s\\033[0m\n" "$ERROR_MSG" fi else STATUS_SYMBOL="\\033[38;2;250;189;47m⚠\\033[0m" STATUS_TEXT="Unknown" printf " %b \\033[2mLast backup\\033[0m \\033[38;2;250;189;47m%s\\033[0m\n" "$STATUS_SYMBOL" "$STATUS_TEXT" fi fi fi ''; # Combine all sections hasDisks = cfg.showSmartStatus && (builtins.length (builtins.attrNames cfg.smartDrives) > 0); hasStorage = cfg.showDiskUsage && (builtins.length cfg.diskUsagePaths > 0); in '' if ([[ -n "$SSH_CONNECTION" ]] || [[ -n "$SSH_TTY" ]]) && [[ -z "$TMUX" ]]; then echo "" printf "\\033[38;2;142;192;124m━━ System ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━\\033[0m\n" ${systemInfoCode} ${optionalString hasDisks '' printf "\\033[38;2;131;165;152m━━ Disks ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━\\033[0m\n" ${smartStatusCode} ''} ${optionalString hasStorage '' printf "\\033[38;2;131;165;152m━━ Storage ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━\\033[0m\n" ${diskUsageCode} ''} ${optionalString cfg.showSnapraidStatus '' printf "\\033[38;2;131;165;152m━━ SnapRAID ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━\\033[0m\n" ${snapraidStatusCode} ''} ${optionalString cfg.showBorgStatus '' printf "\\033[38;2;131;165;152m━━ Backup ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━\\033[0m\n" ${borgStatusCode} ''} echo "" fi '' ); # Also support bash if needed programs.bash.loginShellInit = mkIf (!config.programs.zsh.enable) ( # Same content as zsh programs.zsh.loginShellInit ); }; }