#!/bin/bash

#

# cli_checkFiles.sh -- This function standardizes the way file

# conditional expressions are applied inside centos-art.sh script.

# Here is where we answer questions like: is the file a regular file

# or a directory?  Or, is it a symbolic link? Or even, does it have

# execution rights, etc.  If the verification fails somehow at any

# point, an error message is output and centos-art.sh script finishes

# its execution. 

#

# Copyright (C) 2009-2013 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 {

    # Define short options.

    local ARGSS='i:,r,m:,n,d,e,f,h,x'

    # Define long options.

    local ARGSL='mime:,is-versioned,match:,is-installed'

    # Initialize array variables.

    local -a CONDITION_COMMAND

    local -a CONDITION_PATTERN

    local -a CONDITION_MESSAGE

    # Initialize array variable counter.

    local COUNTER=0

    # Initialize arguments with an empty value and set it as local

    # variable to this function scope. Doing this is very important to

    # avoid any clash with higher execution environments.

    local ARGUMENTS=''

    # Prepare ARGUMENTS for getopt.

    cli_parseArgumentsReDef "$@"

    # Redefine ARGUMENTS using getopt(1) command parser.

    cli_parseArguments

    # Redefine positional parameters using ARGUMENTS variable.

    eval set -- "$ARGUMENTS"

    # Look for options passed through positional parameters.

    while true; do

        case "$1" in

            -d )

                CONDITION_COMMAND[((++${#CONDITION_COMMAND[*]}))]='test'

                CONDITION_PATTERN[((++${#CONDITION_PATTERN[*]}))]='-d'

                CONDITION_MESSAGE[((++${#CONDITION_MESSAGE[*]}))]="`gettext "isn't a directory."`"

                shift 1

                ;;

            -e )

                CONDITION_COMMAND[((++${#CONDITION_COMMAND[*]}))]='test'

                CONDITION_PATTERN[((++${#CONDITION_PATTERN[*]}))]='-e'

                CONDITION_MESSAGE[((++${#CONDITION_MESSAGE[*]}))]="`gettext "doesn't exist."`"

                shift 1

                ;;

            -f )

                CONDITION_COMMAND[((++${#CONDITION_COMMAND[*]}))]='test'

                CONDITION_PATTERN[((++${#CONDITION_PATTERN[*]}))]='-f'

                CONDITION_MESSAGE[((++${#CONDITION_MESSAGE[*]}))]="`gettext "isn't a regular file."`"

                shift 1

                ;;

            -h )

                CONDITION_COMMAND[((++${#CONDITION_COMMAND[*]}))]='test'

                CONDITION_PATTERN[((++${#CONDITION_PATTERN[*]}))]='-h'

                CONDITION_MESSAGE[((++${#CONDITION_MESSAGE[*]}))]="`gettext "isn't a symbolic link."`"

                shift 1

                ;;

            -x )

                CONDITION_COMMAND[((++${#CONDITION_COMMAND[*]}))]='test'

                CONDITION_PATTERN[((++${#CONDITION_PATTERN[*]}))]='-x'

                CONDITION_MESSAGE[((++${#CONDITION_MESSAGE[*]}))]="`gettext "isn't an executable file."`"

                shift 1

                ;;

            -i | --mime )

                local MIME=$2

                CONDITION_COMMAND[((++${#CONDITION_COMMAND[*]}))]='file'

                CONDITION_PATTERN[((++${#CONDITION_PATTERN[*]}))]='-bi'

                CONDITION_MESSAGE[((++${#CONDITION_MESSAGE[*]}))]="`eval_gettext "isn't a \\\"\\\$MIME\\\" file."`"

                shift 2

                ;;

            -m | --match )

                CONDITION_COMMAND[((++${#CONDITION_COMMAND[*]}))]='match'

                CONDITION_PATTERN[((++${#CONDITION_PATTERN[*]}))]="$2"

                CONDITION_MESSAGE[((++${#CONDITION_MESSAGE[*]}))]="`eval_gettext "doesn't match its pattern."`"

                shift 2

               ;;

            -r | --is-versioned )

                CONDITION_COMMAND[((++${#CONDITION_COMMAND[*]}))]="centos-art"

                CONDITION_PATTERN[((++${#CONDITION_PATTERN[*]}))]="vcs --is-versioned"

                CONDITION_MESSAGE[((++${#CONDITION_MESSAGE[*]}))]=""

                shift 1

                ;;

            -n | --is-installed )

                CONDITION_COMMAND[((++${#CONDITION_COMMAND[*]}))]="rpm"

                CONDITION_PATTERN[((++${#CONDITION_PATTERN[*]}))]="-q --quiet"

                CONDITION_MESSAGE[((++${#CONDITION_MESSAGE[*]}))]="`gettext "isn't installed in the system."`"

                shift 1

                ;;

            -- )

                shift 1

                break

                ;;

        esac

    done

    # Define list of files we want to apply verifications to, now that

    # all option-like arguments have been removed from positional

    # parameters list so we are free to go with the verifications.

    local FILE=''

    local FILES=$@

    for FILE in $FILES;do

        until [[ ${COUNTER} -eq ${#CONDITION_PATTERN[*]} ]];do

            case ${CONDITION_COMMAND[$COUNTER]} in

                "test" | "rpm" )

                ${CONDITION_COMMAND[$COUNTER]} ${CONDITION_PATTERN[$COUNTER]} ${FILE} \

                    || cli_printMessage "${FILE} ${CONDITION_MESSAGE[$COUNTER]}" --as-error-line

                ;;

                "centos-art" )

                # Don't create another level for error messages here

                # (that would duplicate them unnecessarily).  Instead,

                # set error messages inside specific functionalities

                # and use them directly from there.

                cli_runFnEnvironment ${CONDITION_PATTERN[$COUNTER]} ${FILE}

                ;;

                "file" )

                if [[ ! $(${CONDITION_COMMAND[$COUNTER]} ${CONDITION_PATTERN[$COUNTER]} ${FILE}) == "$MIME" ]];then

                    cli_printMessage "${FILE} ${CONDITION_MESSAGE[$COUNTER]}" --as-error-line

                fi

                ;;

                "match" )

                if [[ ! ${FILE} =~ "${CONDITION_PATTERN[$COUNTER]}" ]];then

                    cli_printMessage "${FILE} ${CONDITION_MESSAGE[$COUNTER]}" --as-error-line

                fi

                ;;

                * )

                cli_printMessage "`gettext "The condition command provided isn't supported."`" --as-error-line

                ;;

            esac

            COUNTER=$(($COUNTER + 1))

        done

    done

}