I see that there is an environment variable SVN_EDITORto determine which editor to use with subversion, as well as SVN_MERGEan environment variable for merging files.
SVN_EDITOR
SVN_MERGE
Is there an environment variable for defining a demarcation tool ?
You can customize the difference tool used by the installation diff-cmdin your file ~/.subversion/config; see manual. You can also use the option --diff-cmdon the command line .
diff-cmd
~/.subversion/config
--diff-cmd
, , : alias svndiff = 'svn diff --diff-cmd/usr/bin/meld'