An O(ND) Difference Algorithm and its Variations (1986, Eugene W. Myers) is a fantastic paper and you may want to start there. It includes pseudo-code and a nice visualization of the graph traversals involved in doing the diff. Section 4 of the paper introduces some refinements to the algorithm that make it very effective. Successfully … Read more
I think the diff algo used for pack files was linked to one of the delta encoding out there: initially (2005) xdelta, and then libXDiff. But then, as detailed below, it shifted to a custom implementation. Anyway, as mentioned here: Git does deltification only in packfiles. But when you push via SSH git would generate … Read more
An O(ND) Difference Algorithm and its Variations (1986, Eugene W. Myers) is a fantastic paper and you may want to start there. It includes pseudo-code and a nice visualization of the graph traversals involved in doing the diff. Section 4 of the paper introduces some refinements to the algorithm that make it very effective. Successfully … Read more