git-stash

Hi,

I just was in the need for git-stash (for the 1e6th time this year), but instead of writing a script, I though I'd try the "!" convention for aliases. Works quite well for me:

git config alias.stash '!git diff-files --name-only -z | git update-index -z --stdin && tree=$(git-write-tree) && commit=$(echo stash $(date) | git-commit-tree $tree) && git-update-ref refs/heads/stash $commit && git-reset --hard'

(This is one long line.)

With this, I can now say "git stash" with a dirty working directory, and it will have the same effect as "git reset --hard", i.e. reset to the clean state in HEAD.

Except that all my changes are stashed away in the branch "stash". It is not really a branch, as I expect it to jump from loose end to loose end, like this:

A - B - C - D - E - F - G - H - ...  (master branch)
  \               \       \
    A'  ..          E'  ..  G'       (stash branch)

The ".." denote reflog connections: "git log stash" will show G' and as its parent G with its history, while "git reflog stash" will show G', and then E', and then A'.

Maybe it is not only useful for me...

Ciao, Dscho