git-local-branches

#!/bin/sh

usage()
{
    cat >&2 << __EOF__
Usage: $(basename $0) repo

Options:
  repo      -- Location of the target git repository.
__EOF__
    exit ${1-1}
}

log()
{
    echo "$(basename $0): $1" >&2
}

while [ $# -gt 0 ]; do
    case $1 in
    -h)
        usage 0
        ;;
    *)
        break
        ;;
    esac
    shift
done

[ $# -eq 1 ] || usage

repodir="$1"
[ -d "$repodir" ] || usage
cd "$repodir"

if ! git status >/dev/null 2>&1; then
    log "'$repodir' isn't a git repository"
    exit 1
fi

for branch in $(git branch --remotes | grep -v HEAD); do
    localname=${branch##*/}
    if [ -z "$(git branch --list $localname)" ]; then
        errmsg=$(git branch --track "$localname" "$branch" 2>&1 >/dev/null)
        [ $? -ne 0 ] && log "failed to create '$localname': $errmsg"
    else
        log "local branch '$localname' already exists; skipping"
    fi
done

exit 0