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Thomas Haller authored
Previously, the action was only passed as the first command line argument to the dispatcher scripts. Now, also set it via the "$NM_DISPATCHER_ACTION" environment variable. The main purpose is to have a particular, nm-dispatcher specific variable that is always set inside the dispatcher scripts. For example, imagine you have a script that can be either called by dispatcher or some other means (manually, or spawned via /etc/NetworkManager/dispatcher.d/11-dhclient). Then it might make sense to differenciate from inside the script whether you are called by nm-dispatcher. But previously, there was no specific environment variable that was always set inside the dispatcher event. For example, with the "hostname" action there are no other environment variables. Now (with version 1.12), you can check for `test -n "$NM_DISPATCHER_ACTION"`. (cherry picked from commit ce961904)
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