#!/bin/bash

#

# cli_getFilesList.sh -- This function defines the list of FILES to

# process.

#

# Copyright (C) 2009-2011 Alain Reguera Delgado

# 

# 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307

# USA.

# 

# ----------------------------------------------------------------------

# $Id$

# ----------------------------------------------------------------------

function cli_getFilesList {

    local LOCATION=''

    local FILTER=''

    local FILES=''

    # If first argument is provided to cli_getFilesList, use it as

    # default location. Otherwise, if first argument is not provided,

    # location takes the action value (ACTIONVAL) as default.

    if [[ "$1" != '' ]];then

        LOCATION="$1"

    else

        LOCATION="$ACTIONVAL"

    fi

    # If second argument is provided to cli_getFilesList, use it as

    # default extension to look for files. Otherwise, if second

    # argument is not provided, use flag filter instead.

    if [[ "$2" != '' ]];then

        FILTER="$2"

    else

        FILTER="$FLAG_FILTER"

    fi

    # Define filter as regular expression pattern. When we use regular

    # expressions with find, regular expressions are evaluated against

    # the whole file path.  This way, when the regular expression is

    # specified, we need to build it in a way that matches the whole

    # path. Doing so, everytime we pass the `--filter' option in the

    # command-line might be a tedious task. Instead, in the sake of

    # reducing some typing, we prepare the regular expression here to

    # match the whole path using the regular expression provided by

    # the user as pattern.

    FILTER="^${LOCATION}/${FILTER}$"

    # Define list of files to process.

    if [[ -d $LOCATION ]];then

        FILES=$(find $LOCATION -regextype posix-egrep -type f -regex "${FILTER}" | sort)

    elif [[ -f $LOCATION ]];then

        FILES=$LOCATION

    fi

    # Check list of files to process. If we have an empty list of

    # files, inform about it and stop script execution. Otherwise

    # print list of files.

    if [[ "$FILES" == '' ]];then

        cli_printMessage "`gettext "There is no file to process."`" 'AsErrorLine'

        cli_printMessage "$(caller)" 'AsToKnowMoreLine'

    else

        echo "$FILES"

    fi

}