Use SVN Revision to label build in CCNET

Question

I am using CCNET on a sample project with SVN as my source control. CCNET is configured to create a build on every check in. CCNET uses MSBuild to build the source code.

I would like to use the latest revision number to generate AssemblyInfo.cs while compiling. How can I retrieve the latest revision from subversion and use the value in CCNET?

Edit: I'm not using NAnt - only MSBuild.

Answer 1

I am currently "manually" doing it through a prebuild-exec Task, using my cmdnetsvnrev tool, but if someone knows a better ccnet-integrated way of doing it, i'd be happy to hear :-)

Answer 2

Customizing csproj files to autogenerate AssemblyInfo.cs
http://www.codeproject.com/KB/dotnet/Customizing_csproj_files.aspx

Every time we create a new C# project, Visual Studio puts there the AssemblyInfo.cs file for us. The file defines the assembly meta-data like its version, configuration, or producer.

Found the above technique to auto-gen AssemblyInfo.cs using MSBuild. Will post sample shortly.

Answer 3

Be careful. The structure used for build numbers is only a short so you have a ceiling on how high your revision can go.

In our case, we've already exceeded the limit.

If you attempt to put in the build number 99.99.99.599999, the file version property will actually come out as 99.99.99.10175.

Answer 4

I have written a NAnt build file that handles parsing SVN information and creating properties. I then use those property values for a variety of build tasks, including setting the label on the build. I use this target combined with the SVN Revision Labeller mentioned by lubos hasko with great results.

<target name="svninfo" description="get the svn checkout information">
    <property name="svn.infotempfile" value="${build.directory}\svninfo.txt" />
    <exec program="${svn.executable}" output="${svn.infotempfile}">
        <arg value="info" />
    </exec>
    <loadfile file="${svn.infotempfile}" property="svn.info" />
    <delete file="${svn.infotempfile}" />

    <property name="match" value="" />

    <regex pattern="URL: (?'match'.*)" input="${svn.info}" />
    <property name="svn.info.url" value="${match}"/>

    <regex pattern="Repository Root: (?'match'.*)" input="${svn.info}" />
    <property name="svn.info.repositoryroot" value="${match}"/>

    <regex pattern="Revision: (?'match'\d+)" input="${svn.info}" />
    <property name="svn.info.revision" value="${match}"/>

    <regex pattern="Last Changed Author: (?'match'\w+)" input="${svn.info}" />
    <property name="svn.info.lastchangedauthor" value="${match}"/>

    <echo message="URL: ${svn.info.url}" />
    <echo message="Repository Root: ${svn.info.repositoryroot}" />
    <echo message="Revision: ${svn.info.revision}" />
    <echo message="Last Changed Author: ${svn.info.lastchangedauthor}" />
</target>

Answer 5

If you prefer doing it on the MSBuild side over the CCNet config, looks like the MSBuild Community Tasks extension's SvnVersion task might do the trick.

Answer 6

Based on skolimas solution I updated the NAnt script to also update the AssemblyFileVersion. Thanks to skolima for the code!

<target name="setversion" description="Sets the version number to current label.">
        <script language="C#">
            <references>
                    <include name="System.dll" />
            </references>
            <imports>
                    <import namespace="System.Text.RegularExpressions" />
            </imports>
            <code><![CDATA[
                     [TaskName("setversion-task")]
                     public class SetVersionTask : Task
                     {
                      protected override void ExecuteTask()
                      {
                       StreamReader reader = new StreamReader(Project.Properties["filename"]);
                       string contents = reader.ReadToEnd();
                       reader.Close();                     
                       // replace assembly version
                       string replacement = "[assembly: AssemblyVersion(\"" + Project.Properties["label"] + "\")]";
                       contents = Regex.Replace(contents, @"\[assembly: AssemblyVersion\("".*""\)\]", replacement);                                        
                       // replace assembly file version
                       replacement = "[assembly: AssemblyFileVersion(\"" + Project.Properties["label"] + "\")]";
                       contents = Regex.Replace(contents, @"\[assembly: AssemblyFileVersion\("".*""\)\]", replacement);                                        
                       StreamWriter writer = new StreamWriter(Project.Properties["filename"], false);
                       writer.Write(contents);
                       writer.Close();
                      }
                     }
                     ]]>
            </code>
        </script>
        <foreach item="File" property="filename">
            <in>
                    <items basedir="${srcDir}">
                            <include name="**\AssemblyInfo.cs"></include>
                    </items>
            </in>
            <do>
                    <setversion-task />
            </do>
        </foreach>
    </target>