Developing on a folder outside the svn local repository structure and copying back

I am using the SVN binary that comes with Mac OS X snow leopard. I am new to SVN and the learning path seems to be steep.

I have a local svn repository(or should i call it folder?) with the traditional structu开发者_C百科re,

+ Tags
   + 0.3
   + 0.3.2
   + 0.3.6 
+ Branches
+ Trunk
   + files.php
   + files.js
   + files.css
   + All other currently working files.

But i want to develop in a different folder outside this structure. Once i am done with that, i thought i could copy it's files back to trunk folder and run svn stat->diff->commit. But then sub folders i copied had had "S" as status, that is switched related to parent directory. But the files were showing "M" - modified.

What i want to do

svn/trunk ==copy=> outside developing folder ===Finish==> svn/trunk(same as 1st) => Commit

I tried to hard link the folder to the trunk directory, but it seems that there is no equivalent "mklink /J" in OS X.

Is there an alternate way to do this?

Situations Developing wordpress plugin, plugin needs to reside in the plugins directory. Other web applications i am developing.

Wordpress plugin is committed to SVN which is problematic. Second one is private svn server that i use for managing the apps for iOS & Android I'm developing.

What you checkout in svn terminology is called working copy.

You don't need to checkout the whole svn repository, but rather trunk only:

 cd desired_location
 svn co path_to_repo/Trunk

When you finish the work, you can checkin all changed files.