feat(desktop): consolidate declarative workstation profile

Capture desktop-specific system, session, Noctalia, and Pi integration alongside shared laptop support. Retire obsolete X11 configuration and make package ownership explicit for repeatable Decman deployments.
2026-08-24 20:20:58 +02:00
parent bfc5aa7933
commit ed063ab1fe
105 changed files with 1479 additions and 8826 deletions
@@ -0,0 +1,87 @@
+-- Sum each logical CPU's interval utilization.  Unlike the built-in average,
+-- this follows Unix tools by allowing the value to exceed 100%.
+local command = [[awk '
+/^cpu[0-9]+ / {
+  total = 0
+  for (i = 2; i <= NF; i++) total += $i
+  idle = $5 + $6
+  printf "%s %.0f %.0f\n", $1, total, idle
+}' /proc/stat]]
+
+local previous = {}
+local request_in_flight = false
+
+local function colorForUsage(percent)
+  if percent >= 85 then
+    return "#ff453a" -- red
+  end
+  if percent >= 70 then
+    return "#ff8800" -- orange
+  end
+  if percent >= 50 then
+    return "#ffd60a" -- yellow
+  end
+  return "#ffffff" -- white
+end
+
+local function renderStatus(text, color)
+  barWidget.render(ui.row({ gap = 4, align = "center" }, {
+    ui.glyph({ name = "cpu", size = 14, color = color }),
+    ui.label({ text = text, color = color }),
+  }))
+end
+
+function update()
+  noctalia.setUpdateInterval(2000)
+
+  if request_in_flight then
+    return
+  end
+
+  request_in_flight = true
+  noctalia.runAsync(command, function(result)
+    request_in_flight = false
+
+    if result.exitCode ~= 0 then
+      renderStatus("CPU —", "#fff1e6")
+      barWidget.setTooltip("Unable to read CPU utilization")
+      return
+    end
+
+    local utilization = 0
+    local sampled = 0
+    for line in string.gmatch(result.stdout, "[^\r\n]+") do
+      local name, total, idle = string.match(line, "^(cpu%d+) (%d+) (%d+)$")
+      total = tonumber(total)
+      idle = tonumber(idle)
+      local prior = previous[name]
+
+      if prior ~= nil then
+        local total_delta = total - prior.total
+        local idle_delta = idle - prior.idle
+        if total_delta > 0 then
+          utilization = utilization + (100 * (total_delta - idle_delta) / total_delta)
+          sampled = sampled + 1
+        end
+      end
+
+      previous[name] = { total = total, idle = idle }
+    end
+
+    if sampled > 0 then
+      -- Keep the aggregate display, but base its heat color on average
+      -- utilization per logical CPU so multicore systems do not stay red.
+      local per_cpu_utilization = utilization / sampled
+      renderStatus(string.format("%.0f%%", utilization), colorForUsage(per_cpu_utilization))
+      barWidget.setTooltip(
+        string.format(
+          "Aggregate CPU utilization (100%% per logical CPU) · %.0f%% average per CPU",
+          per_cpu_utilization
+        )
+      )
+    else
+      renderStatus("—", "#fff1e6")
+      barWidget.setTooltip("Sampling CPU utilization…")
+    end
+  end)
+end