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#!/bin/bash
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#
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# render_getConfigOption.sh -- This function standardizes the
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# configuration fields are retrived from some action-specific
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# definitions.
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#
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# Copyright (C) 2009, 2010, 2011 The CentOS Project
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or (at
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# 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., 675 Mass Ave, Cambridge, MA 02139, USA.
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#
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# ----------------------------------------------------------------------
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# $Id$
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# ----------------------------------------------------------------------
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function render_getConfigOption {
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# Initialize action string.
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local ACTION="$1"
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# Initialize field definition.
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local FIELD="$2"
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# Initialize configuration options.
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local OPTION=''
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# Check action string. The action string must be present in order
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# for this function to work. It provides the information needed to
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# retrive configurantion options from.
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if [[ "$ACTION" == '' ]];then
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cli_printMessage "`gettext "There is no action string to work with."`" --as-error-line
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fi
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# Check field definition. The field definition must match any of
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# the formats specified by the `-f' option of `cut' command.
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if [[ ! "$FIELD" =~ '^([0-9]+|[0-9]+-|-[0-9]+|[0-9]+-[0-9]+)$' ]];then
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cli_printMessage "`gettext "The field definition is not valid."`" --as-error-line
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fi
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# Get configuration option from action string.
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OPTION=$(echo -n "$ACTION" | cut -d: -f${FIELD})
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# Sanitate configuration option retrived from action string.
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OPTION=$(echo -n "${OPTION}" \
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| sed -r 's!^ *!!g' \
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| sed -r 's!( |,|;) *! !g' \
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| sed -r 's! *$!!g')
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# Verify configuration option. It cannot be an empty value.
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if [[ $OPTION == '' ]];then
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cli_printMessage "`gettext "The configuration option cannot be empty."`" --as-error-line
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fi
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# Print out configuration options retrived from action string.
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cli_printMessage "$OPTION" --as-stdout-line
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}
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