guix

1 files changed, 58 insertions, 0 deletions

diff --git a/home-config/waybar/custom_cmus.lua b/home-config/waybar/custom_cmus.lua
new file mode 100755
index 0000000..d03eb9c
--- /dev/null
+++ b/home-config/waybar/custom_cmus.lua
@@ -0,0 +1,58 @@
+#!/usr/bin/lua
+
+json = require("dkjson")
+posix = require("posix")
+
+function htmlescape(s)
+    s = string.gsub(s, "&", "&")
+    s = string.gsub(s, "<", "&lt;")
+    s = string.gsub(s, ">", "&gt;")
+    return s
+end
+
+function timefmt(n)
+    local s = n % 60
+    local m = math.floor(n / 60)
+    return string.format("%d:%02d", m, s)
+end
+
+function output(text, tooltip)
+    text = htmlescape(text)
+    tooltip = htmlescape(tooltip)
+    print(json.encode{text=text, tooltip=tooltip, class="custom-cmus"})
+end
+
+function getstat(status, name)
+    for _, line in ipairs(status) do
+        if string.match(line, "^" .. name) then
+            return string.sub(line, string.len(name)+2)
+        end
+    end
+end
+
+while true do
+    local pipe = io.popen("cmus-remote -Q")
+    local status = {}
+    for line in pipe:lines() do
+        table.insert(status, line)
+    end
+    local success = pipe:close()
+    if not success then
+        output(" Not running", "Not running")
+    elseif getstat(status, "status") == "stopped" then
+        output(" Not running", "Not running")
+    else
+        local playing = getstat(status, "status")
+        local symbol = ({playing="", paused=""})[playing]
+        local title = getstat(status, "tag title")
+        local artist = getstat(status, "tag artist")
+        local duration = getstat(status, "duration")
+        local position = getstat(status, "position")
+        local text = string.format("%s %s (%s)", symbol, title, timefmt(position))
+        local tooltip = string.format("%s - %s (%s / %s)", 
+            artist, title, timefmt(position), timefmt(duration)
+        )
+        output(text, tooltip)
+    end
+    posix.sleep(1)
+end