I skimmed the post, but it seems not much was said about how the original diffs are generated. Git generates diffs only on request with varying levels of accura

I skimmed the post, but it seems not much was said about how the original diffs are generated. Git generates diffs only on request with varying levels of accuracy depending on the options given. Sometimes the diff completely fails to capture the intent of the change - it shows the path from A to B but not in any semantically meaningful way.