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diff --git a/contrib/libdiff/README b/contrib/libdiff/README new file mode 100644 index 000000000000..4e99e6e3c2e2 --- /dev/null +++ b/contrib/libdiff/README @@ -0,0 +1,26 @@ +This is a collection of diff algorithms, to test various combinations. + +The initial aim was to provide a faster diff implementation for got +(gameoftrees.org) with a BSD license, at the u2k20 OpenBSD hackathon. +A side effect could be improving OpenBSD's /usr/bin/diff utility. + +At the time of writing, this is little more than a playground / benchmark basis +/ diff algorithm analysis platform. What could be done: +- add profiling and test series to rate diff algorithm combinations. +- interface with / merge into got. + +The Myers and Patience Diff algorithm implementations found here are based on +the explanations found in these blog post series: + https://blog.jcoglan.com/2017/02/12/the-myers-diff-algorithm-part-1/ ff. +and + https://blog.jcoglan.com/2017/09/19/the-patience-diff-algorithm/ ff. +-- possibly the single most comprehensive explanations of these algorithms. +Many thanks for this valuable door opener! +The source code itself is not based on the code found in those blogs, but +written from scratch with the knowledge gained. + +Compile: + make -C diff + +Test: + make -C test/ |