Re: [PATCH/RFCv2 1/2] git-rebase -i: add command "drop" to remove a commit

Ideally, I think we should do a sanity check before starting the rebase,
and error out if we encounter an invalid command, a command that should
be followed by a valid sha1 and does not, ...

But currently, we do the verification while applying commands, and I
don't think there's anything really helpful to do if we encounter a
"drop this-is-not-a-sha1" command.

While I agree that doing a sanity check before starting the rebase is
a better idea, it would not be logic to do so only for the 'drop'
command, it should be done for all of the various commands (as you
said, checking if the commands are valid, checking if the SHA-1
following the command is valid if it was expecting one...).

However I think that it should be in a different patch, changing the
whole checking system of rebase is not directly linked to the idea of
the 'drop' command.

Rémi