Automatic and programmatic modifications to MantisBT core files

[CarlosFeitozaFilho]

Hello!

I know my question isn't about plugins, but I'd like to implement something in my plugins, and perhaps some of you have already created a clever solution.

The problem:

Recently, I needed to indicate next to the MantisBT name, in the title bar, whether the user was connected to was the development environment. Therefore, I had to modify a core MantisBT file because there was no way to use hooks/events. I wondered if there was a solution where a plugin, upon installation, could "patch" specific files using some technique to modify them and achieve customized behavior. When the plugin is uninstalled, the patch would be removed.

I KNOW there's the problem of MantisBT updates reverting these changes, but that would be the second problem. Initially, I wanted to know if anyone has done this before, and if so, how they did it.