Initial commit

Audio.nimble

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+# Package
+
+version       = "0.1.0"
+author        = "Hubert Van De Walle"
+description   = "A new awesome nimble package"
+license       = "Apache-2.0"
+srcDir        = "src"
+bin           = @["audio"]
+
+
+# Dependencies
+
+requires "nim >= 1.4.2"

src/audio.nim

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+import os, osproc, strutils, system
+
+type
+  SinkState = enum
+    Suspended, Running
+
+  Sink = tuple[index: int, description: string, state: SinkState]
+
+proc listSinks(): seq[Sink] =
+  let outp = execProcess("pactl", args = ["list", "sinks"], options = {poUsePath})
+  var sink: Sink
+  var done = false
+
+  for line in outp.splitLines():
+    if line.startsWith("Sink"):
+      done = false
+      sink.index = line.split("#")[1].parseInt()
+    elif not done:
+      let trim = line.strip(trailing = false)
+      if trim.startsWith("State"):
+        let stateStr = trim.split(": ")[1]
+        sink.state = if stateStr == "SUSPENDED": Suspended else: Running
+      elif trim.startsWith("Description"):
+        done = true
+        sink.description = trim.split(": ")[1]
+        result.add(sink)
+
+proc setDefaultSink(index: int): int =
+  let p = startProcess("pactl", args = ["set-default-sink", $index], options = {poUsePath})
+  result = p.waitForExit()
+
+const
+  reset = "\e[0m"
+  bold = "\e[1m"
+  green = "\e[32m"
+
+proc printSinks() =
+  for sink in listSinks():
+    if sink.state == Running:
+      echo bold & $sink.index & reset & " " & green & sink.description & reset
+    else:
+      echo bold & $sink.index & reset & " " & sink.description & reset
+
+if paramCount() < 1:
+  printSinks()
+else:
+  paramStr(1).parseInt().setDefaultSink().quit()