Implicit stashes

Hi,

  I was thinking that it would be nice if everything was undoable in
git.  Currently there are some easily typed by irreversible commands
that I keep seeing people doing.

For example:

$ git checkout folder

Now all changes that you just worked on are deleted, with no way of recovering.

$ git reset --hard

I know this seems very explicit to delete changes, but I myself have done this and accidentally lost changes. For example, I write a unit test and don't commit it in on purpose because I know that it currently fails and I want to test it against older versions. I carefully git checkout older versions to find if the unit test fails, then in stupidity reset back to origin/master ..

  Anyway, I think a nice solution is to have a separate stash for
implicit stashes.  Then irreversible commands would simply stash
before making the changes.
  It would also be nice to add a 'git undo' which just undoes whatever
the last operation was - i.e  unstash or reset to an earlier HEAD@{1}

John