VCS_INFO_git_getaction () { #{{{
    local gitaction='' gitdir=$1
    local tmp

    for tmp in "${gitdir}/rebase-apply" \
               "${gitdir}/rebase"       \
               "${gitdir}/../.dotest" ; do
        if [[ -d ${tmp} ]] ; then
            if   [[ -f "${tmp}/rebasing" ]] ; then
                gitaction="rebase"
            elif [[ -f "${tmp}/applying" ]] ; then
                gitaction="am"
            else
                gitaction="am/rebase"
            fi
            printf '%s' ${gitaction}
            return 0
        fi
    done

    for tmp in "${gitdir}/rebase-merge/interactive" \
               "${gitdir}/.dotest-merge/interactive" ; do
        if [[ -f "${tmp}" ]] ; then
            printf '%s' "rebase-i"
            return 0
        fi
    done

    for tmp in "${gitdir}/rebase-merge" \
               "${gitdir}/.dotest-merge" ; do
        if [[ -d "${tmp}" ]] ; then
            printf '%s' "rebase-m"
            return 0
        fi
    done

    if [[ -f "${gitdir}/MERGE_HEAD" ]] ; then
        printf '%s' "merge"
        return 0
    fi

    if [[ -f "${gitdir}/BISECT_LOG" ]] ; then
        printf '%s' "bisect"
        return 0
    fi
    return 1
}