In this day and age of source control I don’t think this is fully necessary. If you want to know the why, you can look into the commit history and see which ticket is connected to it. There you might even see the discussions around the ticket as well. But this requires good source control discipline.
Why not put the “why” in a comment and save people the job of dredging through old commits and tickets to figure out what the code is for? I’d thank someone for saving me the hassle.
In any modern IDE “dredging through old commits” means clicking a single button to see who last changed the line. From there it often makes sense to go look at the PR to see a higher level of what was changed. You cannot include all of that context in a single comment.
Going back to the original ticket can offer far more info than what any “why” comment can give. You can see how old it is, if there are any connected tickets, who were involved with it, step by step instructions how to reproduce the bug, etc.
In this day and age of source control I don’t think this is fully necessary. If you want to know the why, you can look into the commit history and see which ticket is connected to it. There you might even see the discussions around the ticket as well. But this requires good source control discipline.
It has helped me many times.
Why not put the “why” in a comment and save people the job of dredging through old commits and tickets to figure out what the code is for? I’d thank someone for saving me the hassle.
In any modern IDE “dredging through old commits” means clicking a single button to see who last changed the line. From there it often makes sense to go look at the PR to see a higher level of what was changed. You cannot include all of that context in a single comment.
You can also do that if you think it’s useful.
Going back to the original ticket can offer far more info than what any “why” comment can give. You can see how old it is, if there are any connected tickets, who were involved with it, step by step instructions how to reproduce the bug, etc.