Add Waybar disk list via HM

dotfiles/config/waybar/scripts/diskfree

@@ -0,0 +1,45 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+config_dir="${XDG_CONFIG_HOME:-$HOME/.config}/waybar"
+list_file="${config_dir}/disks"
+
+mounts=()
+
+if [[ -n "${WAYBAR_DISKS:-}" ]]; then
+  # Accept comma or space separated values.
+  IFS=', ' read -r -a mounts <<< "${WAYBAR_DISKS//:/,}"
+elif [[ -f "$list_file" ]]; then
+  while IFS= read -r line; do
+    line="${line%%#*}"
+    line="${line#"${line%%[![:space:]]*}"}"
+    line="${line%"${line##*[![:space:]]}"}"
+    [[ -z "$line" ]] && continue
+    mounts+=("$line")
+  done < "$list_file"
+fi
+
+if [[ ${#mounts[@]} -eq 0 ]]; then
+  mounts=("/")
+fi
+
+items=()
+for mount in "${mounts[@]}"; do
+  if df_out=$(df -h --output=avail,target "$mount" 2>/dev/null | awk 'NR==2 {print $2, $1}'); then
+    items+=("$df_out")
+  fi
+done
+
+if [[ ${#items[@]} -eq 0 ]]; then
+  exit 0
+fi
+
+output=""
+for item in "${items[@]}"; do
+  if [[ -n "$output" ]]; then
+    output+=" | "
+  fi
+  output+="$item"
+done
+
+printf '%s\n' "$output"

nixos/machines/strixi-minaj.nix

@@ -76,6 +76,7 @@
 
   swapDevices = [
     { device = "/dev/disk/by-uuid/27f277a0-b552-43a0-904d-625e48922bb9"; }
+    { device = "/swapfile"; size = 16384; } # size is in MiB (adds 16 GiB)
   ];
 
   networking.hostName = "strixi-minaj";
@@ -86,6 +87,10 @@
   home-manager.sharedModules = [
     {
       home.stateVersion = "23.05";
+      xdg.configFile."waybar/disks".text = ''
+        # One mountpoint per line (comments with # are ignored).
+        /
+      '';
     }
   ];