При переустановке eclips'а слетают настройки плагинов

# Copyright 1999-2012 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: $

EAPI=5

inherit eutils

DESCRIPTION="Eclipse SDK"
HOMEPAGE="http://www.eclipse.org"

TYPE_V="S"
MY_PV="4.4M1"
POST_V="201308072000"
CDNAME="luna"

SRC_BASE="http://www.eclipse.org/downloads/download.php?file=/eclipse/downloads/drops4/${TYPE_V}-${MY_PV}-${POST_V}/eclipse-SDK-${MY_PV}-linux-gtk"

SRC_URI="
        amd64? ( ${SRC_BASE}-x86_64.tar.gz&r=1 -> eclipse-${CDNAME}-${MY_PV}-gtk-x86_64.tar.gz )
        x86? ( ${SRC_BASE}.tar.gz&r=1 -> eclipse-${CDNAME}-${MY_PV}-gtk.tar.gz )
"

LICENSE="EPL-1.0"
SLOT="4.4"
KEYWORDS="-* ~amd64 ~x86"

RDEPEND="
        >=virtual/jdk-1.6
        x11-libs/gtk+:2"

S=${WORKDIR}/eclipse

src_install() {
        local dest=/opt/${PN}-${SLOT}

        insinto ${dest}
        doins -r features icon.xpm plugins artifacts.xml p2 eclipse.ini configuration dropins

        exeinto ${dest}
        doexe eclipse

        dohtml -r about.html about_files epl-v10.html notice.html readme/*

        insinto /etc
        doins "${FILESDIR}"/${SLOT}/eclipserc-bin-${SLOT}

        dobin "${FILESDIR}"/${SLOT}/eclipse-bin-${SLOT}
        make_desktop_entry "eclipse-bin-${SLOT}" "Eclipse ${SLOT} ${CDNAME} (bin)" "${dest}/icon.xpm" "Comment=Eclipse IDE"
}

pkg_postinst () {
    elog "Install marketplace:"
    elog "  Help → Install new Software → Switch to the Luna → General Purpose Tools → Marketplace Client"
    elog "Install ui themes:"
    elog "  Visit to https://github.com/jeeeyul/eclipse-themes and install \"Eclipse 4 Chrome Theme\" plugin."
    elog "  For change vertical bar color please add to your css style: \"#org-eclipse-e4-ui-compatibility-editor * { background-color: #RRGGBB; }\"."
}