Can “git pull --all” update all my local branches?

Question

I often have at least 3 remote branches: master, staging and production. I have 3 local branches that track those remote branches.

Updating all my local branches is

Answer 1

To complete the answer by Matt Connolly, this is a safer way to update local branch references that can be fast-forwarded, without checking out the branch. It does not update branches that cannot be fast-forwarded (i.e. that have diverged), and it does not update the branch that is currently checked out (because then the working copy should be updated as well).

git fetch

head="$(git symbolic-ref HEAD)"
git for-each-ref --format="%(refname) %(upstream)" refs/heads | while read ref up; do
    if [ -n "$up" -a "$ref" != "$head" ]; then
        mine="$(git rev-parse "$ref")"
        theirs="$(git rev-parse "$up")"
        base="$(git merge-base "$ref" "$up")"
        if [ "$mine" != "$theirs" -a "$mine" == "$base" ]; then
            git update-ref "$ref" "$theirs"
        fi
    fi
done