Blame Scripts/Bash/Functions/Commons/cli_getConfigValue.sh

878a2b
#!/bin/bash
878a2b
#
6eac95
# cli_getConfigValue.sh -- This function standardizes the way are
6eac95
# retrieved from configuration files. As arguments, the configuration
6eac95
# file absolute path, the configuration section name, and the
6eac95
# configuration option name must be provided.
878a2b
#
03486a
# Copyright (C) 2009, 2010, 2011, 2012 The CentOS Project
878a2b
#
878a2b
# This program is free software; you can redistribute it and/or modify
878a2b
# it under the terms of the GNU General Public License as published by
878a2b
# the Free Software Foundation; either version 2 of the License, or (at
878a2b
# your option) any later version.
878a2b
#
878a2b
# This program is distributed in the hope that it will be useful, but
878a2b
# WITHOUT ANY WARRANTY; without even the implied warranty of
878a2b
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
878a2b
# General Public License for more details.
878a2b
#
878a2b
# You should have received a copy of the GNU General Public License
878a2b
# along with this program; if not, write to the Free Software
878a2b
# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
878a2b
#
878a2b
# ----------------------------------------------------------------------
878a2b
# $Id$
878a2b
# ----------------------------------------------------------------------
878a2b
    
878a2b
function cli_getConfigValue {
878a2b
878a2b
    # Initialize absolute path to configuration file.
878a2b
    local CONFIG_ABSPATH="$1"
878a2b
878a2b
    # Initialize configuration section name where the variable value
878a2b
    # we want to to retrive is set in.
878a2b
    local CONFIG_SECTION="$2"
878a2b
878a2b
    # Initialize variable name we want to retrive value from.
6eac95
    local CONFIG_OPTION="$3"
878a2b
878a2b
    # Retrive configuration lines from configuration file.
878a2b
    local CONFIG_LINES=$(cli_getConfigLines \
6eac95
        "$CONFIG_ABSPATH" "$CONFIG_SECTION" "$CONFIG_OPTION")
878a2b
878a2b
    # Parse configuration lines to retrive the values of variable
878a2b
    # names.
6eac95
    local CONFIG_VALUE=$(echo $CONFIG_LINES \
78e112
        | gawk 'BEGIN{FS="="}; { print $2 }' \
78e112
        | sed -r -e 's![[:space:]]*!!g' -e 's!^"(.+)"$!\1!')
878a2b
878a2b
    # Output values related to variable name.
6eac95
    echo "$CONFIG_VALUE"
878a2b
878a2b
}