#61 monitor configuration and init, render engine started, dmesg changes, ppm monitor listing changes

coordinator/util/dialog.lua

@@ -0,0 +1,45 @@
+local completion = require("cc.completion")
+
+local util = require("scada-common.util")
+
+local print = util.print
+local println = util.println
+local print_ts = util.print_ts
+local println_ts = util.println_ts
+
+local dialog = {}
+
+function dialog.ask_y_n(question, default)
+    print(question)
+
+    if default == true then
+        print(" (Y/n)? ")
+    else
+        print(" (y/N)? ")
+    end
+
+    local response = read(nil, nil)
+
+    if response == "" then
+        return default
+    elseif response == "Y" or response == "y" then
+        return true
+    elseif response == "N" or response == "n" then
+        return false
+    else
+        return nil
+    end
+end
+
+function dialog.ask_options(options, cancel)
+    print("> ")
+    local response = read(nil, nil, function(text) return completion.choice(text, options) end)
+
+    if response == cancel then return false end
+
+    if util.table_contains(options, response) then
+        return response
+    else return nil end
+end
+
+return dialog