How do you determine the latest SVN revision number rooted in a directory?

Question

I would like to start tagging my deployed binaries with the latest SVN revision number.

However, because SVN is file-based and not directory/project-based, I need to

Answer 1

"svn info" will show you the working copy's revision number (see the "Revision" line in the output from "svn info"). Your build system probably allows you to place the relevant part of "svn info"'s output somewhere where it will be reflected in your application. For example, you may specify that when building, a temporary (un-versioned) file should be created, containing output from "svn info"; and you then include this file when compiling.

Answer 2

This is ridiculous but svn info or svnversion wont take into consideration subdirectories; it's a feature called working 'Mixed Revisions' - I call it torture. I just needed to find the latest 'revision' of the live codebase and the hacked way below worked for me - it might take a while to run:

repo_root# find ./ | xargs -l svn info  | grep 'Revision: ' | sort
...
Revision: 86
Revision: 86
Revision: 89
Revision: 90
root@fairware:/home/stage_vancity#

Answer 3

For me the best way to find out the last revision number of the trunk/branch is to get it from the remote URL. It is important NOT to use the working dir because it may be obsolete. Here is a snippet with batch ( I hate a much ;-)):

@for /f "tokens=4" %%f in ('svn info %SVNURL% ^|find "Last Changed Rev:"') do set lastPathRev=%%f

echo trunk rev no: %lastPathRev%

Nevertheless I have a problem to hardcode this number as interim version into sources containing $Rev:$. The problem is that $Rev:$ contains the file rev. no. So if trunk rev no is larger then the rev no of version file, I need to modify this file "artificially" and to commit it to get the correct interim version (=trunk version). This is a pane! Does somebody has better idea? Many thanks

Answer 4

I don't know if you are using MSBuild(Visual Studio) to build your binaries. But if you would: there is a connection possible between Subverion and MSBuild through MSBuild Community Tasks Project

Here's part of our build script: our (C#) application gets the svn revision number included:

  <SvnVersion LocalPath="$(MSBuildProjectDirectory)" ToolPath="installationpath\of\subversion\bin">
     <Output TaskParameter="Revision" PropertyName="Revision" />
  </SvnVersion>
  <Message Text="Version: $(Major).$(Minor).$(Build).$(Revision)"/>
...
    AssemblyVersion="$(Major).$(Minor).$(Build).$(Revision)"
     AssemblyFileVersion="$(Major).$(Minor).$(Build).$(Revision)"

Jan