Make git-send-branch recover/cache cover letters

[guludo]

When using git-send-branch and some error occurs when sending the e-mails, if the user issue the command again, the user has to rewrite the cover letter.

There's a workaround for that problem, which is by manually recovering what is inside .git/.send_branch/ before git-send-branch erases it.

It would be nice if git-send-branch was smart enough to recover the cover letter (notice the pun :P) when it realizes that it couldn't send e-mails the last time it was called for the same branch and base branch.

Or even better: it could maintain a cache of cover letters in case the user is with reviews in progress for multiple branches.

Does that make sense?

[lucasdemarchi]

@guludo nice. Will you do it? :)

[cmarcelo]

Both ideas sound good to me: recovering from error and reusing cover letter in new versions of a branch.

[guludo]

@lucasdemarchi tentatively ;-)