How to use Beyond Compare 3 as external SVN (SlikSVN) merge and diff tool on Windows?

Question

I want to configure SVN command line client SlikSVN with Beyond Compare 3 as external diff and merge tool. How to do this?

Answer 1

1. Add Beyond Compare 3 folder to Windows PATH. If you don't know how check this answer - just replace Python path with Beyond Compare 3 path.

2. In Beyond Compare 3 folder create bcomp-diff.bat file:

   @ECHO OFF
   
   SET DIFF="bcomp.exe"
   
   SET LEFT=%6
   SET RIGHT=%7
   
   %DIFF% %LEFT% %RIGHT%
   

3. In Beyond Compare 3 folder create bcomp-merge.bat file:

   @ECHO OFF
   
   SET DIFF3=BComp.exe
   
   SET BASE=%1
   SET THEIRS=%2
   SET MINE=%3
   SET MERGED=%4
   
   REM left MINE
   REM center BASE
   REM right THEIRS
   %DIFF3% %MINE% %THEIRS% %BASE% %MERGED%
   

4. Now we need to edit SlikSVN config file. On Windows 7 it is located in %USERPROFILE%\AppData\Roaming\Subversion (source). Just paste this into Windows Explorer address bar and edit config file.

   In [helpers] section of config file add/modify as below:

   diff-cmd = bcomp-diff.bat
   merge-tool-cmd = bcomp-merge.bat
   

5. Restart cmd.exe so that PATH windows variable will be reloaded.

6. You're done! Try svn diff inside your repository and it should run Beyond Compare 3.

I've made a gist with above batch files.

Batch files are based on this website.