edeliver v1.5.1 Edeliver.Relup.Instructions.CodeChangeOnAppProcesses
This upgrade instruction does nothing
but can be used in an Edeliver.Relup.Modification
to indicate
that the code_change
function is invoked for suspended modules
which changed. See Edeliver.Relup.Instructions.SuspendAppProcesses
.
In a future step it might remove code_change
instructions from
modules which does not change exported functions.
Link to this section Summary
Functions
Modifies the relup file
Link to this section Functions
Modifies the relup file.
Modifies the relup
file which will be used to upgrade (or downgrade) from one version to another
by inserting, removing, or shifting appup instructions.
See Edeliver.Relup.InsertInstruction
and Edeliver.Relup.ShiftInstruction
for useful helpers to
insert / position the instructions and Edeliver.Relup.RunnableInstruction
to execute custom code
during the upgrade.
Callback implementation for Edeliver.Relup.Instruction.modify_relup/2
.