Konstantin Khomoutov <kostix@xxxxxxxx> 于2023年7月28日周五 01:13写道： > > >> If you haven't created one, of course it would fail. It should help > >> to do > >> > >> $ git hash-object -w --stdin </dev/null > >> > >> before running > >> > >> $ git diff 00750edc e69de29bb > >> > > > > This is a viable solution, but it's a bit ugly since a read-only "diff" > > requires ”write“ an empty blob. > > You could probably just do > > git cat-file -s e69de29bb > > to figure out whether a blob is empty. > > What is your end goal? Do you indeed want to produce a "trivial patch" which > merely "adds" all the lines of the blob you'd like to compare to an empty one > (assuming the blob conains text)? > Yes, I need to compare the diff between multiple versions of blobs in real time (only given the blobID). Once a file is deleted or created, I have to perform this comparison with the "empty blob".
