How Environment Variables Indicate Deployment State

Once invoked, a pre- or post-processing script can determine in which deployment state (install, import, delete, uninstall, import rollback, or install rollback) it is running by checking the environment variables BTAD_ChangeRequestAction, BTAD_InstallMode and BTAD_HostClass.

The following table describes the combinations of the three variables that indicate the different deployment states.

Deployment State	Expected Values
	BTAD_ChangeRequestAction
Import without overwrite flag	Create
Import with overwrite flag	Update
Install	Update
Uninstall	Delete
Import rollback	Delete
Install rollback	Delete

See Also

Using Pre- and Post-processing Scripts to Customize Application Deployment
BTAD_ChangeRequestAction
BTAD_InstallMode
BTAD_HostClass