add the beep app

halyde/apps/beep.lua

@@ -0,0 +1,19 @@
+local computer = require("computer")
+local cliparse = require("cliparse")
+
+cliparse.config({
+  ["f"] = 1,
+  ["frequency"] = 1,
+  ["t"] = 1,
+  ["time"] = 1,
+})
+local parsed, err = cliparse.parse(...)
+if not parsed then
+  return print("\x1b[91m" .. err)
+end
+
+local freq =
+  tonumber(parsed.flags.f and parsed.flags.f[1] or parsed.flags.frequency and parsed.flags.frequency[1] or "440")
+local time = tonumber(parsed.flags.t and parsed.flags.t[1] or parsed.flags.time and parsed.flags.time[1] or "0.1")
+
+computer.beep(freq, time)

halyde/apps/helpdb/beep.txt

@@ -0,0 +1,6 @@
+Usage: beep [FLAGS]
+Make the computer beep.
+
+  FLAGS
+    -f, --frequency   Specifies the frequency, in Hz. Defaults to 440Hz.
+    -t, --time        Specifies how long, in seconds, the computer should beep. Defaults to 0.1s.