[dba-VB] C# programming exercises in LINQPad: Sample 2 - looking for a text string in code files

Hi Gustav --

Yes, I have used this utility code several times already to quickly find code files...

Thank you.

-- Shamil

Sat, 23 Jun 2012 19:18:49 +0200 от "Gustav Brock" <gustav at cactus.dk>:
> Hi Shamil
> 
> I just tested this in LINQPad and it runs fine. Could be very useful.
> 
> /gustav
> 
> 
> >>> Salakhetdinov Shamil <mcp2004 at mail.ru> 19-06-12 22:14 >>>
> Hi All --
> 
> Here is a code snippet  from my LINQPad utility code snippets collection to look for a text string in all the files of a directory (including subdirectories) 
> I know there exists a grep (but I can't find it here on my system) utility or windows explorer advanced search but the sample code (see P.S.) seems to be working much quicker(?),
> also this code snippets is not a bad example of modern C# development techniques - try:
> 
> Here are the results for my real life case - I have just needed to find a text in 3765  .cs files.
> 
> 1. first run took 30 seconds
> start: 19.06.2012 23:36:06 
> end:  19.06.2012 23:36:34 
> 
>  2. subsequent runs
> Total files count 
> 3765 
> 
> Start Time 
> 19.06.2012 23:59:39 
> 
> e:\projects\code\TestSolution\Test.BLL\Reports Import\TestApiAgent.cs
> e:\projects\code\TestSolution\Test.Core\Settings\General Settings\GeneralSettings.cs
> 
> Total files length 
> 39905062 
> 
> End Time 
> 19.06.2012 23:59:42 
> 
> Elapsed time (ms) 
> 2483.1421 
> 
> Processing speed (chars/ms) 
> 16070.3900111073 
> 
> Thank you.
> 
> -- Shamil
> 
> P.S. Code snippet
> 
> // Search for a text string in all the *.cs files of a directory
> // including its subdirectories
> //
> 
> // folder to search code files in
> string folderName = @"e:\projects\code";
> // search string
> string searchFor = "test.com";
> 
> var folder = new System.IO.DirectoryInfo(folderName);
> var files = folder.GetFiles("*.cs", SearchOption.AllDirectories);
> 
> files.Length.Dump("Total files count"); 
> 
> var startTime = DateTime.Now;  
> startTime.Dump("Start Time"); 
> 
> int totalLength = 0;
> files.AsParallel().ForAll(x => 
> {
>   Interlocked.Add(ref totalLength,   
>     (int)(new System.IO.FileInfo(x.FullName)).Length);  
>   string code = System.IO.File.ReadAllText(x.FullName, Encoding.UTF8);
>   if (code.IndexOf(searchFor,StringComparison.InvariantCultureIgnoreCase)>-1)
>     System.Console.WriteLine(x.FullName);   
> });
> 
> 
> totalLength.Dump("Total files length");
> var endTime = DateTime.Now;  
> endTime.Dump("End Time"); 
> 
> (endTime - startTime).TotalMilliseconds.Dump("Elapsed time (ms)");
> (totalLength / (endTime - startTime).TotalMilliseconds).Dump("Processing speed (chars/ms)");  
> 
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