Add non-interactive mode

src/BigRunner.ConsoleApp/ArgsParser.cs

@@ -0,0 +1,87 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+
+namespace BigRunner.ConsoleApp
+{
+    public class ArgsParser
+    {
+        private List<string> unidentifiedArgs;
+        private Dictionary<string, string> identifiedArgs;
+        public ArgsParser(string[] args)
+        {
+            unidentifiedArgs = new List<string>();
+            identifiedArgs = new Dictionary<string, string>();
+            Parse(args);
+        }
+
+        private void Parse(string[] args)
+        {
+            string curr = String.Empty;
+            foreach (var arg in args)
+            {
+                if (IsCommand(arg))
+                {
+                    if (!String.IsNullOrWhiteSpace(curr))
+                    {
+                        // add value-less command to dictionary
+                        identifiedArgs.Add(curr, String.Empty);
+                    }
+                    curr = GetKey(arg);
+                }
+                else
+                {
+                    if (String.IsNullOrWhiteSpace(curr))
+                    {
+                        // if value without command was informed it goes to special values list
+                        unidentifiedArgs.Add(arg);
+                    }
+                    else
+                    {
+                        identifiedArgs.Add(curr, arg);
+                        curr = String.Empty;
+                    }
+                }
+            }
+            // add stand-alone option if it was the last cmd informed
+            if (!String.IsNullOrWhiteSpace(curr))
+            {
+                identifiedArgs.Add(curr, String.Empty);
+            }
+        }
+
+        private bool IsCommand(string arg)
+        {
+            return arg.StartsWith("-") || arg.StartsWith("--");
+        }
+
+        private string GetKey(string arg)
+        {
+            if (!IsCommand(arg))
+                return arg;
+            else
+                if (arg.StartsWith("-"))
+                    return arg.Substring(1);
+                else
+                    return arg.Substring(2);
+        }
+
+        public bool HasArg(string arg)
+        {
+            return identifiedArgs.ContainsKey(GetKey(arg));
+        }
+
+        public string GetArg(string arg)
+        {
+            if (!HasArg(arg))
+                throw new ArgumentException(String.Format("Argument %s not found.", arg));
+            return identifiedArgs[GetKey(arg)];
+        }
+
+        public List<string> GetArgs()
+        {
+            return unidentifiedArgs;
+        }
+    }
+}

src/BigRunner.ConsoleApp/BigRunner.ConsoleApp.csproj

@@ -41,6 +41,7 @@
     <Reference Include="System.Xml" />
   </ItemGroup>
   <ItemGroup>
+    <Compile Include="ArgsParser.cs" />
     <Compile Include="Program.cs" />
     <Compile Include="Properties\AssemblyInfo.cs" />
   </ItemGroup>

src/BigRunner.ConsoleApp/Program.cs

@@ -50,11 +50,27 @@ Make notes on console screen
 			Console.WriteLine("\t2. To terminate the console. Please press ESC key");
 		}
 
-		/// <summary>
-		/// Input connection string data
-		/// </summary>
-		/// <returns>Returns sql connection if okay, otherwise user will continue entering</returns>
-		private static SqlConnection InputConnectionStringData()
+
+        /// <summary>
+        /// Print argument help
+        /// </summary>
+        private static void PrintHelp()
+        {
+            /**********************************************
+				Make notes on console screen
+			**********************************************/
+            Console.WriteLine("Usage: BigRunner.ConsoleApp.exe -s -c <connection string> -l <output log file> [big script to be run.sql]");
+            Console.WriteLine("Command line arguments:");
+            Console.WriteLine("\t-s\tEnable silent mode. Will run the script and exit the application.");
+            Console.WriteLine("\t-c\tConnection string.");
+            Console.WriteLine("\t-l\tOutput log file.");
+        }
+
+        /// <summary>
+        /// Input connection string data
+        /// </summary>
+        /// <returns>Returns sql connection if okay, otherwise user will continue entering</returns>
+        private static SqlConnection InputConnectionStringData()
 		{
 			var sqlConnection = new SqlConnection();
 
@@ -320,6 +336,8 @@ private static string CalElapsedTime(Stopwatch stopWatch)
 		/// <param name="args">The parameters from command line are passed into this method</param>
 		static void Main(string[] args)
 		{
+            ArgsParser argsParser = new ArgsParser(args);
+
 			/**********************************************
 				Initialize these necessary input parameters
 			**********************************************/
@@ -328,19 +346,43 @@ Initialize these necessary input parameters
 			TextWriter logger = null;
 			StreamReader reader = null;
 
-			PrintNotes();
-			sqlConnection = InputConnectionStringData();
-			reader = InputBigSqlScriptFilePathData();
-			enabledLogToFile = InputEnabledLogToFileData();
-			if (enabledLogToFile)
-			{
-				logger = InputLogFilePathData();
-			}
-
-			/**********************************************
+            // silent mode (works off of command line arguments)
+            if (argsParser.HasArg("s"))
+            {
+                try
+                {
+                    sqlConnection = new SqlConnection(argsParser.GetArg("c"));
+                    sqlConnection.Open();
+                    reader = new StreamReader(argsParser.GetArgs().FirstOrDefault());
+                    enabledLogToFile = argsParser.HasArg("l");
+                    if (enabledLogToFile)
+                    {
+                        logger = new StreamWriter(argsParser.GetArg("l"));
+                    }
+                }
+                catch
+                {
+                    PrintHelp();
+                    return;
+                }
+            }
+            else
+            {
+                PrintNotes();
+
+                sqlConnection = InputConnectionStringData();
+                reader = InputBigSqlScriptFilePathData();
+                enabledLogToFile = InputEnabledLogToFileData();
+                if (enabledLogToFile)
+                {
+                    logger = InputLogFilePathData();
+                }
+            }
+
+            /**********************************************
 				Measure time of running sql script
 			**********************************************/
-			var stopWatch = new Stopwatch();
+            var stopWatch = new Stopwatch();
 			stopWatch.Start();
 
 			try
@@ -526,17 +568,20 @@ Stop watch and write the elapsed time to
 				stopWatch.Stop();
 				Console.WriteLine(CalElapsedTime(stopWatch));
 
-				/**********************************************
+                /**********************************************
 					Wait until user enter ENTER key to exit
 				**********************************************/
-				while (true)
-				{
-					var consoleKey = Console.ReadKey().Key;
-					if (consoleKey == ConsoleKey.Escape)
-					{
-						break;
-					}
-				}
+                if (!argsParser.HasArg("s"))
+                {
+                    while (true)
+                    {
+                        var consoleKey = Console.ReadKey().Key;
+                        if (consoleKey == ConsoleKey.Escape)
+                        {
+                            break;
+                        }
+                    }
+                }
 			}
 		}
 	}