How to merge branch back to trunk in SVN with all commit history?

Question

How to merge branch back to trunk in SVN with all commit history? I know in Git I can use

merge -squash

Is there any equivalent command in SVN?

Answer 1

With Subversion 1.5 or later the merge is recorded on your local working copy in the svn:mergeinfo property. So this information is not lost.

You can see the merged revisions if you use svn log -g instead of the normal svn log.

Normal merges are performed as

svn merge -rREV1:REV2 svn://server/branch my_trunk_wc 

But if you use a branch it is sometimes more convenient to use a reintegration merge. In this case you should first merge all trunk changes to the branch using something like

svn merge svn://server/trunk my_branch_wc

(This merges everything that is not already merged)

And after you commit this change to the branch you can use

svn merge --reintegrate svn://server/branch my_trunk_wc

To move all changes over as a single commit. (After this operation you should remove the branch)