How to change the source code and how to document modifications

Only authorized users are allowed to commit changes to the repository. Rules given below are still preliminary (Sep 2010) and may undergo future changes.

1. Change source code in your current working copy. Document all changes in the respective file headers under "Current revisions:". Additionally, document all changes in a local file (e.g. ~/palm/current_version/CURRENT_MODIFICATIONS), including the names of those files that have been changed. Classify changes in three cases, new (N), changed (C), and bugfix (B). Try to be as short and as precise as possible in describing the changes!
   
   
2. Test the changed version, unless it works sufficiently.
   
   
3. Commit the changes to the repository

      svn commit -m "message string" trunk
   

   where "message string" is a short, meaningful summary of the changes.
   
   Alternatively, in case that you have made quite a lot of changes, you can also give the contents of your file CURRENT_MODIFICATIONS as the log message:

      svn commit -F CURRENT_MODIFICATIONS trunk
   

4. Enter the changes into the change log (doc/tec/changelog).
   
   
5. Move the change comments in the file headers from "Current revisions:" to "Former revisions:". Set the current svn id in front of that.
   
   Example:
   
   before move:

   ! Current revisions:
   ! -----------------
   ! new dummy argument abcd
   !
   ! Former revisions:
   ! -----------------
   ! $Id: init_3d_model.f90 425 2010-02-06 13:37:48Z raasch $
   !
   ! 407 2009-12-01 15:01:15Z maronga
   ! var_ts is replaced by dots_max
   

   after move:

   ! Current revisions:
   ! -----------------
   !
   !
   ! Former revisions:
   ! -----------------
   ! $Id: init_3d_model.f90 425 2010-02-06 13:37:48Z raasch $
   !
   ! 425 2010-02-06 13:37:48Z raasch
   ! new dummy argument abcd
   !
   ! 407 2009-12-01 15:01:15Z maronga
   ! var_ts is replaced by dots_max
   

6. Commit the changes in the technical documentation and the file headers:

      svn commit -m "last commit documented" trunk