[FIXED] Creating a patch installer

Issue

I would like to create an install4j project that can:

• Copy some folders from an existing installation to a backup folder (for rollback if needed)
• Install new folders to replace the old.
• Create a rollback installer that would reverse this process.

Basically, a patch installer.

Is there already an example .install4j file I can use so I don't have to create all this from scratch?

Solution

Copy some folders from an existing installation to a backup folder (for >rollback if needed)

This can be done with a "Copy files and directories" action

Install new folders to replace the old.

This is done by the "Install files" action

Create a rollback installer that would reverse this process.

As of install4j 9, this is not available. The uninstaller will uninstall all files that the installer and any previous installer have installed, but it cannot roll back to a previous state.

Answered By - Ingo Kegel
Answer Checked By - Terry (JavaFixing Volunteer)