The eclass reference doesn't mention how to work with local git repos EGIT_REPO_URI="git:///home/rabisg/repo" didnt work for me. Although EGIT_REPO_URI="/home/rabisg/repo" did. I guess it can added to the documentation as this is easier for local development Reproducible: Always
It's explained in 'git clone --help' (man git-clone). Not sure if I'm really able to add more than that.
28 Jul 2014; Michał Górny <mgorny@gentoo.org> git-r3.eclass: + Mention git-clone man page for URI syntax, bug #511636.