如何从存储库更新时有效地处理生产和开发之间的更改

I have inherited a project with a local development environment that has code specific to that machine, and which is different for the production server. Even though the majority of it is contained in constants and the rest is in the tests, every time I commit from development and update in production I'm going to have to make the same changes in production. Fortunately this is an internal tool with low volume.I have inherited a project with a local develop