Basic use of SVN

Author: J. Ghattas Last revision: 2023/07/04, J. Ghattas See also the section svn on the Documentation/UserGuide.

Create a new file

Add a new file to the svn repository either by coping an existent, renaming or adding a new file.

svn cp file1 file2
or
svn mv file1 file2
or create first the file2 and then add it
svn add file2

All these commands will only add locally the file. To finally add them to the repository you must commit:

svn -u stat
svn ci

Example if you forgot to create ORCHIDEE_OL in your branch. First, under svn, copy ORCHIDEE_OL from a close version of your branch, then extract it to your working directory (where you develop your version). There copy/modify your configuration files, add them to svn and eventually commit:

svn cp svn://forge.ipsl.jussieu.fr/orchidee/branches/ORCHIDEE_2_2/ORCHIDEE_OL svn://forge.ipsl.jussieu.fr/orchidee/branches/ORCHIDEE-SP-MIP/ORCHIDEE_OL
cd $workdir/ORCHIDEE-SP-MIP/
svn co svn://forge.ipsl.jussieu.fr/orchidee/branches/ORCHIDEE-SP-MIP/ORCHIDEE_OL ORCHIDEE_OL 
cp -r $newconfig/OOL_SEC_STO_SPMIP ORCHIDEE_OL/OOL_SEC_STO_SPMIP
svn add ORCHIDEE_OL/OOL_SEC_STO_SPMIP
svn -u stat
svn ci

Activate revision information

If you added a new file, make sure also to activate the commit information in the header, after activation this should be done automatically at each commit. Add in the beginning of the file the following keywords :

!! $HeadURL$
!! $Date$
!! $Revision$

Activate substitution by using propset and commit the file:

svn propset svn:keywords "Date Revision HeadURL" file2.f90
svn ci file2.f90

After the commit it should look something like:

!! $HeadURL: svn://forge.ipsl.jussieu.fr/orchidee/trunk/ORCHIDEE/src_sechiba/file2.f90 $
!! $Date: 2015-09-21 13:37:38 +0200 (lun. 21 sept. 2015) $
!! $Revision: 2928 $

Update a branch with changes done in the trunk

First make sure that all changes in the branch have been committed. No local changes should exist in the folder. In a terminal, go to the directory with the source code for the branch:

cd modipsl/modeles/ORCHIDEE    # in the branch

Determine the revision interval x1:X2 with changes done on the trunk that you want to integrate in the branch Check first with --dry-run which files are affected:

svn merge --dry-run -r x1:x2 svn://forge.ipsl.jussieu.fr/orchidee/trunk/ORCHIDEE

Then do the real merge:

svn merge -r x1:x2 svn://forge.ipsl.jussieu.fr/orchidee/trunk/ORCHIDEE

If files gives conflicts, you can answer p for postpone and resolve them manually after finishing the command merge. The command svn merge will not commit any changes. All changes will be done locally and you need to validate by svn diff and svn ci to commit.

Merge changes done on a branch into the trunk

The same command svn merge can be used to merge a branch into the trunk. For this case, install locally the trunk and go to that folder. The svn command will look something like folllwing:

cd modipsl/modeles/ORCHIDEE    # in the trunk
svn merge -r x1:x2 svn://forge.ipsl.jussieu.fr/orchidee/branches/ORCHIDEE-TOTO/ORCHIDEE