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#!/bin/bash
#
# cli_checkFiles.sh -- This function standardizes file verifications
# inside centos-art.sh script.  If file verification fails in anyway,
# centos-art.sh script complains about it and ends up script
# execution.
#
# Usage:
#
# cli_checkFiles FILE [TYPE]
#
# Copyright (C) 2009, 2010, 2011 The CentOS Project
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or (at
# your option) any later version.
#
# This program is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
# General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
#
# ----------------------------------------------------------------------
# $Id$
# ----------------------------------------------------------------------

function cli_checkFiles {

    local FILE=''
    local FILES="$1"
    local TYPE="$2"
    local MESSAGE=''

    # Check number of paramaters passed to cli_checkFiles function. At
    # least one argument should be passed.
    if [[ $# -lt 1 ]];then
        cli_printMessage "${FUNCNAME}: `gettext "You need to provide one argument at least."`" 'AsErrorLine'
        cli_printMessage "${FUNCDIRNAM}" "AsToKnowMoreLine"
    fi

    for FILE in $FILES;do

        # Check value passed as file to cli_checkFiles function. The
        # file value cannot be empty nor have extrange values.
        cli_checkPathComponent "$FILE" '--default'

        # Perform file verification using FILE and TYPE variables.
        case $TYPE in

            d | directory )
                # File exists and is a directory
                if [[ ! -d $FILE ]];then
                    MESSAGE="`eval_gettext "The directory \\\"\\\$FILE\\\" doesn't exist."`"
                fi
                ;;

            f | regular-file )
                # File exists and is a regular file.
                if [[ ! -f $FILE ]];then
                    MESSAGE="`eval_gettext "The file \\\"\\\$FILE\\\" is not a regular file."`"
                fi
                ;;

            h | symbolic-link )
                # File exists and is a symbolic link.
                if [[ ! -h $FILE ]];then
                    MESSAGE="`eval_gettext "The file \\\"\\\$FILE\\\" is not a symbolic link."`"
                fi
                ;;

            x | execution )
                # To exist, file should be executable.
                if [[ ! -x $FILE ]];then
                    MESSAGE="`eval_gettext "The file \\\"\\\$FILE\\\" is not executable."`"
                fi
                ;;

            fh )
                # To exist, file should be a regular file or a symbolic link.
                if [[ ! -f $FILE ]];then
                    if [[ ! -h $FILE ]];then
                        MESSAGE="`eval_gettext "The path \\\"\\\$FILE\\\" doesn't exist."`"
                    fi
                fi
                ;;

            fd )
                # To exist, file should be a regular file or a directory.
                if [[ ! -f $FILE ]];then
                    if [[ ! -d $FILE ]];then
                        MESSAGE="`eval_gettext "The path \\\"\\\$FILE\\\" doesn't exist."`"
                    fi
                fi
                ;;

            isInWorkingCopy )
                # To exist, file should be inside the working copy.
                if [[ ! $FILE =~ "^/home/centos/artwork/.+$" ]];then
                    MESSAGE="`eval_gettext "The path \\\"\\\$FILE\\\" doesn't exist inside the working copy."`"
                fi
                ;;

            * )
                # File exists.
                if [[ ! -a $FILE ]];then
                    MESSAGE="`eval_gettext "The path \\\"\\\$FILE\\\" doesn't exist."`"
                fi

        esac

    done

    # If file verification fails in anyway, output message information
    # and end up script execution. Otherwise, continue with script
    # normal flow.
    if [[ "$MESSAGE" != '' ]];then
        cli_printMessage "$MESSAGE" "AsErrorLine"
        cli_printMessage "${FUNCDIRNAM}" "AsToKnowMoreLine"
    fi

}