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path: root/waterfox-g/debian/waterfox-g.preinst
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#!/bin/sh

set -e

APP_DIR="/etc/apparmor.d"
APP_PROFILE="usr.bin.waterfox-g"
APP_CONFFILE="$APP_DIR/$APP_PROFILE"
APP_DISABLE="$APP_DIR/disable/$APP_PROFILE"
MOZ_PKG_NAME=waterfox-g
MOZ_LIBDIR=/usr/lib/waterfox-g

# Prepare to move a conffile without triggering a dpkg question
prepare_mv_conffile() {
    local PKGNAME="$1"
    local CONFFILE="$2"

    [ -e "$CONFFILE" ] || return 0

    local md5sum="$(md5sum $CONFFILE | sed -e 's/ .*//')"
    local old_md5sum="$(dpkg-query -W -f='${Conffiles}' $PKGNAME | \
            sed -n -e "\' $CONFFILE ' { s/ obsolete$//; s/.* //; p }")"
	#'
    if [ "$md5sum" = "$old_md5sum" ]; then
        mv -f "$CONFFILE" "$CONFFILE.dpkg-remove"
    fi
}

prepare_rm_conffile() {
    local PACKAGE="$1"
    local CONFFILE="$2"

    [ -e "$CONFFILE" ] || return 0

    local md5sum="$(md5sum $CONFFILE | sed -e 's/ .*//')"
    local old_md5sum="$(dpkg-query -W -f='${Conffiles}' $PACKAGE | \
        sed -n -e "\' $CONFFILE ' { s/ obsolete$//; s/.* //; p }")"
    if [ "$md5sum" != "$old_md5sum" ]; then
        echo "Obsolete conffile $CONFFILE has been modified by you."
        echo "Saving as $CONFFILE.dpkg-bak ..."
        mv -f "$CONFFILE" "$CONFFILE.dpkg-backup"
    else
        echo "Moving obsolete conffile $CONFFILE out of the way..."
        mv -f "$CONFFILE" "$CONFFILE.dpkg-remove"
    fi
}

disable_profile() {
    # Create a symlink to the yet-to-be-unpacked profile
    if [ ! -e "$APP_CONFFILE" ]; then
        mkdir -p `dirname $APP_DISABLE` 2>/dev/null || true
        ln -sf $APP_CONFFILE $APP_DISABLE
    fi
}

if [ "$1" = "install" ] || [ "$1" = "upgrade" ] ; then
        if [ "$1" = "install" ]; then
            # Disable AppArmor profile on install, unless the last profile they
            # modified is enabled.
            base=`echo $APP_PROFILE | cut -d '-' -f 1`
            last_modified=`ls -rt $APP_DIR/$base* 2>/dev/null | grep -v '\.dpkg' | tail -n1`
            if [ -s "$last_modified" ]; then
                if [ -e "$APP_DIR/disable/`basename $last_modified`" ]; then
                    disable_profile
                fi
            else
	        # Fresh install and no other waterfox profiles exist, so disable.
                disable_profile
            fi
        elif [ "$1" = "upgrade" ]; then
            # Disable AppArmor on upgrade from earlier than when we first shipped
            # the profile if the user does not already have a profile defined.
            if dpkg --compare-versions "$2" lt "56.2.5-0" ; then
                disable_profile
            fi
        fi

    prepare_rm_conffile "${MOZ_PKG_NAME}" "/etc/${MOZ_PKG_NAME}/profile/bookmarks.html"
    prepare_rm_conffile "${MOZ_PKG_NAME}" "/etc/${MOZ_PKG_NAME}/profile/localstore.rdf"
    prepare_rm_conffile "${MOZ_PKG_NAME}" "/etc/${MOZ_PKG_NAME}/profile/mimeTypes.rdf"
    prepare_rm_conffile "${MOZ_PKG_NAME}" "/etc/${MOZ_PKG_NAME}/profile/prefs.js"
    prepare_rm_conffile "${MOZ_PKG_NAME}" "/etc/${MOZ_PKG_NAME}/profile/chrome/userChrome-example.css"
    prepare_rm_conffile "${MOZ_PKG_NAME}" "/etc/${MOZ_PKG_NAME}/profile/chrome/userContent-example.css"

    prepare_mv_conffile "${MOZ_PKG_NAME}" "/etc/${MOZ_PKG_NAME}/pref/waterfox-g.js"

fi

#DEBHELPER#
bgstack15