Bug 559136

Summary:	sys-apps/portage : emerge --sync doesn't honor FEATURES="usersync" when using the git sync method
Product:	Portage Development	Reporter:	Raymond Jennings <shentino>
Component:	Core - Configuration	Assignee:	Portage team <dev-portage>
Status:	RESOLVED WORKSFORME
Severity:	normal	CC:	esigra, om
Priority:	Normal
Version:	unspecified
Hardware:	All
OS:	Linux
Whiteboard:
Package list:		Runtime testing required:	---
Bug Depends on:
Bug Blocks:	240187, 941607

Description Raymond Jennings 2015-08-30 00:31:39 UTC

Just tested, and the git process spawned to do a git sync is running as root, not as portage.

Reproducible: Always

Comment 1 ephemer0l 2015-08-30 03:56:06 UTC

Poking through the wiki, it looks like a workaround would be to set 

'sync-user = root:portage' in your /../../repos.conf/gentoo.conf.

Comment 2 ephemer0l 2015-08-30 03:58:30 UTC

err, maybe 'sync-user = portage' in your /../../repos.conf/gentoo.conf would be better...

Comment 3 Zac Medico gentoo-dev

2015-09-01 16:27:01 UTC

Looking at the code, the rsync module uses self.spawn_kwargs which is supposed to make it drop privileges, but it only if you first chown the repository to whatever user you want it to sync as:

https://gitweb.gentoo.org/proj/portage.git/tree/pym/portage/sync/controller.py?h=v2.2.20.1#n276

So, you should run chown -R on the repository for the user that you want it to drop privileges to.

Comment 4 Raymond Jennings 2016-08-26 02:42:01 UTC

pebcak.

I have a hunch this would be better if it were documented in a man page or something but it doesn't appear to be an actual bug in the code.