threads / discuss / 18348

Mirroring repository state, with branches and submodules.

Subject: Mirroring repository state, with branches and submodules.

## tl;dr

2 messages between Mar 17, 2009 and Mar 17, 2009.

replies: 1people: 2as markdown or json

Toby White· Mar 17, 2009, 15:21 UTC · lore

I have a short script which does the following for a remote git rpository:

Clones it (checking out a working tree) Makes tracking local branches for all remote branches Init/updates all submodules.

This gives me an up-to-date mirror of a remote repository. I treat this as essentially read-only.

What I now want to do is have some command which will update this local mirror to reflect exactly the state of the remote mirror; even when the remote mirror may have rebased history.

So far, I'm doing the following:

git fetch
for BRANCH in $(git branch -r | cut -d / -f 2); do
   git checkout $BRANCH
   git reset --hard origin/$BRANCH
done
git submodule update --init

but I'm not sure if that's actually the right way to do it, or if I'm missing any corner cases. Am I safe to use it?

Thanks, Toby

Miklos Vajna· Mar 17, 2009, 16:56 UTC · re: Toby White · lore

Re: Mirroring repository state, with branches and submodules.

On Tue, Mar 17, 2009 at 03:21:40PM +0000, Toby White <toby.o.h.white@googlemail.com> wrote:

Show 6 quoted lines

> git fetch
> for BRANCH in $(git branch -r | cut -d / -f 2); do
>    git checkout $BRANCH
>    git reset --hard origin/$BRANCH
> done
> git submodule update --init

First, I think you don't handle the case when you have multiple remotes. I don't know if this is a problem for you or not.

Second, use plumbing in scripts, git for-each-ref has a stable output format, while git branch may change.