Some users may want to use authenticated SSH connections with credentials stored
in a keyring, such as gnome-keyring. These typically need a DBus session bus
connection, so pass DBUS_SESSION_BUS_ADDRESS into the fetcher environment.
To avoid the user needing to set it in their local.conf (which wouldn't be
usable) or adding it to the environment-cleansing whitelist (which would
potentially impact builds) allow the variables being passed to the fetchers to
come from the data store (first) or the original environment (second).
>From bitbake master rev: 20ad1ea87712d042bd5d89ce1957793f7ff71da0
(Bitbake rev: 26379ff2b686313c82af87a3a35b47adbc0183be)
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>