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#!/bin/bash
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#
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# verify_doLinkCheck.sh -- This function receives a list of required
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# symbolic links and verifies them. This function enforces relation
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# between link names and their targets (previously defined in
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# verify_doLinks.sh function).
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#
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# Copyright (C) 2009-2011 Alain Reguera Delgado
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#
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License as
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# published by the Free Software Foundation; either version 2 of the
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# License, or (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful, but
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# WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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# General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
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# USA.
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#
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# ----------------------------------------------------------------------
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# $Id$
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# ----------------------------------------------------------------------
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function verify_doLinkCheck {
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local -a LINKS_TARGET
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local LINKS_COUNT=0
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until [[ $LINKS_COUNT -eq ${#LINKS[*]} ]];do
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if [[ -h ${LINKS[$LINKS_COUNT]} ]]; then
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# At this point the required link does exist but we don't
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# know if its target is the one it should be. Get target
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# from required link in order to check it later.
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LINKS_TARGET[$LINKS_COUNT]=$(stat --format='%N' ${LINKS[$LINKS_COUNT]} \
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| tr '`' ' ' | tr "'" ' ' | tr -s ' ' | cut -d' ' -f4)
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# Check required target from required link in order to
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# know if it is indeed the one it should be. Otherwise add
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# required link to list of missing links.
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if [[ ${LINKS_TARGET[$LINKS_COUNT]} != ${TARGETS[$LINKS_COUNT]} ]] ;then
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LINKS_MISSING[$LINKS_COUNT]=${LINKS[$LINKS_COUNT]}
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LINKS_MISSING_ID="$LINKS_MISSING_ID $LINKS_COUNT"
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fi
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else
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# At this point the required link doesn't exist at all.
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# Add required link to list of missing links.
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LINKS_MISSING[$LINKS_COUNT]=${LINKS[$LINKS_COUNT]}
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LINKS_MISSING_ID="$LINKS_MISSING_ID $LINKS_COUNT"
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fi
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# Increase link counter.
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LINKS_COUNT=$(($LINKS_COUNT + 1))
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done
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# Stript out leading spaces from missing links ids.
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LINKS_MISSING_ID=$(echo $LINKS_MISSING_ID | sed 's!^ +!!')
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# If there is no missing link, end script execution with a
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# descriptive output.
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if [[ ${#LINKS_MISSING[*]} -eq 0 ]];then
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cli_printMessage "`gettext "The required links are already installed."`"
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cli_printMessage "$(caller)" 'AsToKnowMoreLine'
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fi
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}
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