Head.SmackOnTable();

I guess im a bit old fashioned, but I like to write code like:

public static List<string> CovertLongListToString(IEnumerable<long> param)
 {
 List<String> returnList = new List<string>();

 foreach (long l in param)
 {
 returnList.Add(l.ToString());
 }

 return returnList;
 }

But then resharper 5.0 gives me this lovely option of “Convert to LINQ Expression”, and it turns into:

public static List<string> CovertLongListToString(IEnumerable<long> param)
 {
 return param.Select(l => l.ToString()).ToList();
 }

Thats just brilliant! I LOVE YOU RESHARPER!

As I have mentioned earlier, I am using a NAnt script to do the building for CycleMania, as I believe that its more geared towards what I need it to do than TeamCity. While TeamCity is a great product in itself, I believe that it either cannot do, or doesn’t make clear, how to copy over files from the build directory into another directory (this being the wwwroot of the website).

The reason why I dont want to point the wwwroot at the subversion root, is for security (.svn folders are browsable by default, and not parsed by asp.net), and because of the way that TeamCity works – when it attempts to do an update, it isnt clear on how to get it to revert all changes made (i.e. to the database), and the database file will be locked, with no way of making it available on the fly.

So, in jumps in NAnt. I know, I could use MSBuild Scripts, or powershell scripting, but I have been using NAnt for some time, and I know it rather well, and its free and runs on machines fairly easily.

A run down of the CycleMania NAnt Script

To start off with, we build the solution file. There is no point doing anything at all if the solution does not compile, so we run the following, After setting a few variables:

<echo message="Building Target"/>
<exec program="${MSBuild.Path}"  basedir="${BaseDir}"  verbose="true" >
<arg value="${SolutionPath}"  />
</exec>

For most of the tasks here, I have verbose set to true, because I want as much information as possible in the log file to see if everything worked, and if it didn’t, why not.

After this, it calls deploy, which has a dependency on clean which does the following:

<target name="clean">
 <exec program="${AppCmdPath}"  verbose="true">
 <arg value="STOP apppool  &quot;${ApplicationPool.Name}&quot;" />
 </exec>
 <delete verbose="true">
 <fileset  basedir="${DestinationDirectory}">
 <include name="*.*"  />
 <include name="**/*.*" />
 </fileset>
 </delete>

<exec program="${AppCmdPath}" verbose="true">
 <arg  value="START apppool &quot;%{ApplicationPool.Name}&quot;" />
 </exec>
</target>

The reason why we insist on shutting down and starting the application pool back up is because of MSSQL and IIS and their relationship. For some reason, if you simply recycle the application pool, it dosent stop the database that is bound to it (a user instance), so you cannot simply update the file in the App_Data folder, as I found out the hard way, which eventually led me down this path. It seems that if you want to be able to properly delete everything, you can kill the app pool, and it will unlock all the files. Because we are ussing IIS 7.5 on this box, we have to ues appcmd (google for it!), which is alot better than using iisreset, especially since I have other sites running on the box

One thing I have considered doing, but dont really have time for, is maybe copying over an app_offline file, so that if someone does hit the site while its being wiped, they can see a friendly error page as opposed to an empty directory listing, or something worse than that, but at the moment, that is low priority for me.

And now, deploy gets called:

<target name="deploy" depends="clean">
 <copy  todir="${DestinationDirectory}" verbose="true">
 <fileset  basedir="%{BaseDir}\Cyclemania.Web">
 <include name="*.*"  />
 <include name="**/*.*" />
 <exclude name="*.cs" />
 <exclude name="*.resx" />
 <exclude name="*.csproj" />
 <exclude  name="*.projdata" />
 <exclude name="*.sln" />
 <exclude name="*.csproj.user" />
 <exclude name="*.suo" />
 <exclude name="*.scc" />
 <exclude name="*.load" />
 <exclude  name="*.vssscc" />
 <exclude name="*.vspscc" />
 <exclude name="obj\**" />
 </fileset>
 </copy>
</target>

Notice, it will only copy files that are not on the exclude list – 99.9% those files arnt needed on a live system, but you can tweak it as required. Im looking to keep the wwwroot of the application as clean as possible, and I dont see much need to copy those files over.

And there you have it! With this script (and the bits that I have missed out), you should have a fully functioning build script that will automatically build it for you, wipe the target directory, and copy over the new files. And yes, it works.

SELECT 'ALTER TABLE ' +  OBJECT_NAME(f.parent_object_id) + ' DROP CONSTRAINT [' + f.name + ']'
FROM sys.foreign_keys AS f
INNER JOIN sys.foreign_key_columns AS fc
ON f.OBJECT_ID = fc.constraint_object_id
UNION ALL
SELECT 'TRUNCATE TABLE ' + name FROM dbo.sysobjects WHERE (type = 'u') and name != 'sysdiagrams'
UNION ALL
SELECT 'ALTER TABLE ' +  OBJECT_NAME(f.parent_object_id) + ' ADD CONSTRAINT '  + f.name + ' FOREIGN KEY (' + COL_NAME(fc.parent_object_id, fc.parent_column_id) + ') REFERENCES ' + OBJECT_NAME (f.referenced_object_id) + '(' + COL_NAME(fc.referenced_object_id, fc.referenced_column_id) + ')' FROM sys.foreign_keys AS f INNER JOIN sys.foreign_key_columns AS fc ON f.OBJECT_ID = fc.constraint_object_id

Once you get your head around the DeepLoading and Inclusive/Exclusive Lists in NetTiers, its not too hard, but it isnt straightforward to start off with. Take this VERY simplified class, as an example:

class Product
{
public TList<Product> ChildrenProducts {get;set;}
public Product ParentProduct {get;set;}
}

If you want to deepload the ChildrenProducts collection, you think youd run the following:

DataRepository.ProductProvider.DeepLoad(product,true,DeepLoadType.IncludeChildren, new []{typeof(Product)});

But that will load the ParentProduct product, and not your ChildrenProducts collection, even though its just a list of Product.

What you want to do is:

DataRepository.ProductProvider.DeepLoad(product,true,DeepLoadType.IncludeChildren, new []{typeof(TList<Product>)});

Im guessing because the .net 4.0 framework is still in the beta stages, that’s why NAnt (and TeamCity) arnt supporting it, but from what I can tell, mstcthe method to build it hasnt changed since .net 2.0’s msbuild way of compiling a solution.  Basically, all you need to do is call msbuild from the command line, give it the path of the solution, and off it goes to build it. You can specify additional information such as the build target etc, but its not essential.

Whereas normally, within NAnt, you would run the following:

<solution configuration="release" solutionfile="test.sln" />

This aparently dosent work with the .net 4.0 framework, it seems to not detect it. From what I can tell, the quickest way around this is to do the following:

<exec program="c:\Windows\Microsoft.NET\Framework64\v4.0.21006\MSBuild.exe" basedir="C:\SVN\CycleMania\"  verbose="true" >
 <arg value="C:\SVN\CycleMania\CycleMania.sln" />
 </exec>

Obviously, change the path in the program attribute to suit where Windows is located, and change the Framework64 to simply Framework if you are not running on a 64bit platform. One quirk that I fonud is that you have to have the BaseDir as where the solution is based, otherwise it throws errors about it cannot build properly.

And that should be it! If you are still struggling to compile on the .net 4.0 framework from within Nant, give me a shout.

Its now public knowledge that I have been working on getting a decent CI integration for the CycleMania project working on a publicly accessable server.

For the record, we are using the following tech for the CI integration. Yes, I WILL write a very detailed how-to on how I set things up, but as I am on my lunchbreak here at work, heres a very quick overview of what we are using:

• TeamCity 5.0 Professional, a free download from JetBrains (Limit of 20 Projects and 20 Users)
• .Net framework 4.0 Beta 2 (obviously)
• Nant 0.85, not as a proper build script, but purely as a glorified as a batch script
• APPCMD command to control IIS7’s App recycling (From inside Nant)
• .Net 4.0’s MSBuild

All this running ontop of Windows 2008 R2 Web Edition, and SQL Server 2008 Express.

Things I have learned is:

• TeamCity 5.0 isnt geared up for .net 4.0 YET, which is fair enough, they said support will be included in 5.1
• TeamCity also seems to be simply geared for building projects and running unit tests, less so for copying files over to another directory with specific paths etc.
• Nant’s contrib project is crap. Fair enough last time it was updated was 3 years ago, but it dosent work.
• You cannot simply recycle an app pool to kill a user instance of SQL Server 2008, to update the .mdf file.
• You really shouldnt run a site from the same directory as SVN, if you plan to update it (re above)
• Nant is all good and well, but also dosent support .net 4.0.

I promise I will expand on most of these points when I have time!

Well after spending half an hour looking on the net on how to disable WarningAsError on a WEBSITE project, everyone kept saying the same thing – edit the project settings – WELL A WEBSITE PROJECT DOSENT HAVE PROJECT SETTINGS!

Anyway, here is the solution, you need to edit your web.config :

<system.codedom>
 <compilers>
 <compiler language="c#;cs;csharp" extension=".cs" type="Microsoft.CSharp.CSharpCodeProvider,System, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" warningLevel="3" compilerOptions="/d:DEBUG;TRACE">
 </compiler>
 </compilers>
</system.codedom>

Should turn into the following:

<system.codedom>
 <compilers>
 <compiler language="c#;cs;csharp" extension=".cs" type="Microsoft.CSharp.CSharpCodeProvider,System, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" warningLevel="3" compilerOptions="/d:DEBUG;TRACE">
 <providerOption name="WarnAsError" value="false"/>
 </compiler>
 </compilers>
</system.codedom>

The line you want in question is:

<providerOption name="WarnAsError" value="false"/>

And this baby will make it work! Enjoy!

private void outputValues(object inputObject)
{
List<PropertyInfo> propertyInfos = new List<PropertyInfo>(inputObject.GetType().GetProperties());

foreach (PropertyInfo info in propertyInfos)
{
try
{
object obj = info.GetValue(inputObject, null);
if (obj == null)
{
continue;
}
Console.WriteLine("[{0}]:{1}", info.Name, obj.ToString());

}
catch (Exception)
{
continue;
}

}

}

Replace the Console.WriteLine with whatever you want, log4net,  Debug, trace, etc, and it works!

SELECT 'ALTER TABLE ' +  OBJECT_NAME(f.parent_object_id) + ' DROP CONSTRAINT [' + f.name + ']' FROM sys.foreign_keys AS f INNER JOIN sys.foreign_key_columns AS fc ON f.OBJECT_ID = fc.constraint_object_id
union all
SELECT 'DROP TABLE '+ name FROM dbo.sysobjects WHERE (type = 'u') and name != 'sysdiagrams'