Git: How to reset hard to refspec

Im doing some work with gerrit, and with gerrit you only get the refspec of a commit. Something like:

refs/changes/01/15501/2

How do I reset hard to this?

I tried to play nice

[me@server code ((7deac0e...))]$ git reset --hard refs/changes/01/15501/2
fatal: ambiguous argument 'refs/changes/01/15501/2': unknown revision or path not in the working tree.
Use '--' to separate paths from revisions

This was not the best error message, so I tried agian...

[me@server code ((7deac0e...))]$ git reset --hard -- refs/changes/01/15501/2
fatal: Cannot do hard reset with paths.

I dont need to use reset --hard, but it would work well in my situation. My script runs in the code repo, but I have no idea what state it is in. There is only one开发者_开发百科 file which is reliable and doesn't change, which is the reset_to_gerrit script.

I tell that script to reset to some refspec, and that puts my code repo in a place that i atleast know what to expect. There is a very high possibility of merge conflicts between the original and final state, and reset hard should avoid all of that.

You can do it in two steps.

1. First fetch the change
2. Then hard reset to FETCH_HEAD

Something like:

git fetch origin refs/changes/01/15501/2
git reset --hard FETCH_HEAD