Subversion supports automatic update of keywords in files that are
under revision control. For instance, it is possible to have
Subversion automatically update the revision number (keyword: "Revision")
or last modification date of a source file (keyword: "Date").
To set this up, you can either manually enable properties to be set
for each file using the propset command
svn propset svn:keywords "Date Revision" some_file.txt
To automatically set the properties on all newly added or imported files,
you can edit the subversion config file (typically located in the
$HOME/.subversion directory) so that
enable-auto-props = yes in the [miscellany] section
and the desired automatic properties are set in the [auto-props]
section.
