I have been developing my git tool (based on the git internal API) that
can find out all the commits that have changed a line for better

The reason is for my binary code authorship research, I use machine
learning to classify code authorship. To produce training data, I start
with a source code repository with well-known author labels for each line
and then compiling the project into binary. So, I am able to know the
authorship for binary code and then apply some machine learning

To get ground truth of authorship for each line, I start with git-blame.
But later I find this is not sufficient because the last commit may only
add comments or may only change a small part of the line, so that I
shouldn't attribute the line of code to the last author. Of course, there
must be some debates on who can be the representative of a line of code.
So what I would like to do is find out all the commits that have ever
changed a line, then I can try different approaches to summarize over all
these commits to produce my final authorship label (or even tuple).

I was wondering whether there have been similar debates over accurate
authorship in this community before and whether there may be other people
interested in this work.



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