From 923eb46350b1102749eb05cd2120c96cc6a715d0 Mon Sep 17 00:00:00 2001
From: Tim Keller <tjk@tjkeller.xyz>
Date: Fri, 18 Oct 2024 21:49:17 -0500
Subject: initial commit

---
 widgets/ram.lua | 34 ++++++++++++++++++++++++++++++++++
 1 file changed, 34 insertions(+)
 create mode 100644 widgets/ram.lua

(limited to 'widgets/ram.lua')

diff --git a/widgets/ram.lua b/widgets/ram.lua
new file mode 100644
index 0000000..44ab314
--- /dev/null
+++ b/widgets/ram.lua
@@ -0,0 +1,34 @@
+local wibox = require("wibox")
+local widgets = require("util.widgets")
+
+
+function linux_ram_usage(widget)
+	-- read meminfo
+	local meminfof = io.open("/proc/meminfo")
+
+	local total   = meminfof:read():match("%d+")
+	local free    = meminfof:read():match("%d+")
+
+	meminfof:read() -- memavailable not used
+
+	local buffers = meminfof:read():match("%d+")
+	local cached  = meminfof:read():match("%d+")
+
+	meminfof:close()
+
+	-- calc
+	if total == nil then
+		return
+	end
+
+	local used = (total - free - buffers - cached) * 100 / total
+
+	widget:set_text(math.floor(used))
+end
+
+-- return correct widget for os
+if osname == "Linux" then
+	return widgets.watchfn(linux_ram_usage, 5)
+end
+
+return wibox.widget.textbox("unsupported os")
-- 
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