infodir=/usr/share/info
infofiles=(ledger3.info.gz ledger-mode.info.gz)

post_install() {
    [ -x usr/bin/install-info ] || return 0
    for file in ${infofiles[@]}; do
        install-info $infodir/$file $infodir/dir 2> /dev/null
    done
}

post_upgrade() {
    post_install $1
}

pre_remove() {
    [ -x usr/bin/install-info ] || return 0
    for file in ${infofiles[@]}; do
        install-info --delete $infodir/$file $infodir/dir 2> /dev/null
    done
}