Blame Scripts/Functions/Help/help_getOptions.sh

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#!/bin/bash
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#
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# help_getOptions.sh -- This function interpretes arguments passed to
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# `manual' functionality and calls actions accordingly.
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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 help_getOptions {
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    # Define short options we want to support.
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    local ARGSS=""
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    # Define long options we want to support.
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    local ARGSL="quiet,answer-yes,dont-commit-changes,read,search:,edit,update,copy,delete,rename,backend:"
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    # Parse arguments using getopt(1) command parser.
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    cli_parseArguments
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    # Reset positional parameters using output from (getopt) argument
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    # parser.
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    eval set -- "$ARGUMENTS"
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    # Define default action for help functionality.  This is, the
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    # action performed when no non-option argument is passed to
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    # `centos-art.sh' script command-line internface.
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    if [[ $# -le 1 ]];then
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        /usr/bin/info --node="Top" --file=${MANUAL_BASEFILE}.info.bz2
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        exit
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    fi
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    # Define action to take for each option passed.
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    while true; do
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        case "$1" in
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            --quiet )
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                FLAG_QUIET="true"
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                FLAG_DONT_COMMIT_CHANGES="true"
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                shift 1
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                ;;
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            --answer-yes )
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                FLAG_ANSWER="true"
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                shift 1
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                ;;
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            --dont-commit-changes )
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                FLAG_DONT_COMMIT_CHANGES="true"
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                shift 1
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                ;;
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            --search )
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                ACTIONNAM="searchIndex"
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                FLAG_SEARCH="$2"
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                shift 2
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                ;;
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            --edit )
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                ACTIONNAM="editEntry"
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                shift 1
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                ;;
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            --copy )
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                ACTIONNAM="copyEntry"
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                shift 1
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                ;;
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            --delete )
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                ACTIONNAM="deleteEntry"
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                shift 1
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                ;;
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            --rename )
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                ACTIONNAM="renameEntry"
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                shift 1
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                ;;
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            --update )
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                ACTIONNAM="updateOutputFiles"
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                shift 1
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                ;;
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            --read )
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                ACTIONNAM="searchNode"
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                shift 1
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                ;;
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            --backend )
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                FLAG_BACKEND=$(cli_getRepoName ${2} -f)
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                shift 2
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                ;;
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            -- )
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                # Remove the `--' argument from the list of arguments
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                # in order for processing non-option arguments
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                # correctly. At this point all option arguments have
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                # been processed already but the `--' argument still
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                # remains to mark ending of option arguments and
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                # begining of non-option arguments. The `--' argument
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                # needs to be removed here in order to avoid
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                # centos-art.sh script to process it as a path inside
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                # the repository, which obviously is not.
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                shift 1
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                break
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                ;;
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        esac
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    done
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    # Redefine name of function directory to point the module
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    # specified by `--backend' option.
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    FUNCDIRNAM="$(cli_getRepoName ${FUNCNAM} -d)/Backends/$(cli_getRepoName ${FLAG_BACKEND} -d)"
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    # Redefine action name using function name.  From this point on,
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    # control is given to modules. No function outside modules can be
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    # loaded from now on. If you need to execute one, then you can't
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    # use the FUNCNAM variable for that. Instead, use the full name of
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    # the function (e.g., help_getEntry).
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    ACTIONNAM="${FLAG_BACKEND}_${ACTIONNAM}"
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    # Verify action name. It is required that the action name
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    # specified does have a definition file. Otherwise it is a action
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    # name valid, but not supported yet (e.g., it needs to be
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    # written).
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    if [[ ! -f ${FUNCDIR}/${FUNCDIRNAM}/${ACTIONNAM}.sh ]];then
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        cli_printMessage "`gettext "The action provided is not supported yet."`" --as-error-line
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    fi
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    # Redefine ARGUMENTS variable using current positional parameters. 
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    cli_parseArgumentsReDef "$@"
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}