I am trying to install grass7 addons locally. I have downloaded them and am using the url=path version of the g.extension command line. I get an error as follows:

g.extension url=/home/user/source/grass7-addons/grass7/ -g
List of available extensions (modules):
Fetching list of extensions from GRASS-Addons SVN repository (be patient)...
WARNING: Flag 'g' ignored, addons metadata file not available

I previously downloaded a metadata file from somewhere other than the svn repository. I am trying to find it again (and I hope this question will make it easier to find in future).