сравнивает содержимое и режим BLOB-объектов, найденных с помощью двух древовидных объектов (Compares the content and mode of blobs found via two tree objects)
Синопсис (Synopsis)
git diff-tree [--stdin] [-m] [-s] [-v] [--no-commit-id] [--pretty]
[-t] [-r] [-c | --cc] [--combined-all-paths] [--root] [--merge-base]
[<common diff options>] <tree-ish> [<tree-ish>] [<path>...]