On Fri, Aug 4, 2023 at 6:42 AM ZheNing Hu <adlternative@xxxxxxxxx> wrote: > Actually, there is no need to support a default empty blob. > For example, with the command "git diff --no-index <file> /dev/null", > it can compare a file with /dev/null, but it can only compare <file> > and not <oid>. > Therefore, using commands like "git diff <oid> /dev/null", > "git diff --no-index <oid> /dev/null", or even "git diff <oid> --stdin" > could potentially solve this issue. Maybe it would be clearer to have a new option, called for example "--blob-vs-file", for that then. It could support both: $ git diff --blob-vs-file <blob> <file> and: $ git diff --blob-vs-file <file> <blob>
