{'description': {'en': 'Experimental ebuilds for TeX Live'},
 'feed': ['https://cgit.gentoo.org/proj/tex-overlay.git/atom/'],
 'homepage': 'https://anongit.gentoo.org/git/proj/tex-overlay.git',
 'name': 'tex-overlay',
 'owner': [{'email': 'tex@gentoo.org', 'type': 'project'}],
 'quality': 'experimental',
 'source': [{'type': 'git',
             'uri': 'https://anongit.gentoo.org/git/proj/tex-overlay.git'}],
 'status': 'official'}
pkgcore 0.12.24

$ pmaint --config /var/lib/repo-mirror-ci/data-sync/etc/portage sync tex-overlay
WARNING:pkgcore:tex-overlay repo at '/var/lib/repo-mirror-ci/sync/tex-overlay', doesn't specify masters in metadata/layout.conf. Please explicitly set masters (use "masters =" if the repo is standalone).
WARNING:pkgcore:jkolo repo at '/var/lib/repo-mirror-ci/sync/jkolo', doesn't specify masters in metadata/layout.conf. Please explicitly set masters (use "masters =" if the repo is standalone).
WARNING:pkgcore:tex-overlay repo at '/var/lib/repo-mirror-ci/sync/tex-overlay', doesn't specify masters in metadata/layout.conf. Please explicitly set masters (use "masters =" if the repo is standalone).
*** syncing tex-overlay
Your configuration specifies to merge with the ref 'refs/heads/master'
from the remote, but no such ref was fetched.
!!! failed syncing tex-overlay
 * Sync failed with 1
 * Will try to re-create
$ pmaint --config /var/lib/repo-mirror-ci/data-sync/etc/portage sync tex-overlay
*** syncing tex-overlay
Cloning into '/var/lib/repo-mirror-ci/sync/tex-overlay'...
warning: remote HEAD refers to nonexistent ref, unable to checkout
*** synced tex-overlay
 * Sync succeeded after re-adding
$ git log --format=%ci -1
fatal: your current branch 'master' does not have any commits yet
$ git show -q --pretty=format:%G? HEAD
fatal: ambiguous argument 'HEAD': unknown revision or path not in the working tree.
Use '--' to separate paths from revisions, like this:
'git <command> [<revision>...] -- [<file>...]'
 * Missing profiles/repo_name, removing