Blame Scripts/Functions/cli_getFilesList.sh

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#!/bin/bash
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#
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# cli_getFilesList.sh -- This function defines the list of FILES to
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# process.
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#
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# Copyright (C) 2009-2011 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 cli_getFilesList {
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    local LOCATION=''
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    local FILTER=''
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    local FILES=''
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    # If first argument is provided to cli_getFilesList, use it as
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    # default location. Otherwise, if first argument is not provided,
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    # location takes the action value (ACTIONVAL) as default.
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    if [[ "$1" != '' ]];then
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        LOCATION="$1"
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    else
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        LOCATION="$ACTIONVAL"
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    fi
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    # If second argument is provided to cli_getFilesList, use it as
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    # default extension to look for files. Otherwise, if second
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    # argument is not provided, use flag filter instead.
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    if [[ "$2" != '' ]];then
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        FILTER="$2"
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    else
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        FILTER="$FLAG_FILTER"
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    fi
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    # Define filter as regular expression pattern. When we use regular
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    # expressions with find, regular expressions are evaluated against
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    # the whole file path.  This way, when the regular expression is
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    # specified, we need to build it in a way that matches the whole
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    # path. Doing so, everytime we pass the `--filter' option in the
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    # command-line could be a tedious task. Instead, in the sake of
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    # reducing some typing, we prepare the regular expression here to
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    # match the whole path using the regular expression provided by
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    # the user as pattern. Do not use LOCATION variable as part of
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    # regular expresion so it could be possible to use path expansion.
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    # Using path expansion reduce the amount of places to find out
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    # things and so the time required to finish the task.
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    FILTER="^.+/${FILTER}$"
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    # Define list of files to process. At this point we cannot verify
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    # whether the LOCATION is a directory or a file since path
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    # expansion coul be introduced to it. The best we can do is
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    # verifying exit status and go on.
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    FILES=$(find ${LOCATION} -regextype posix-egrep -regex "${FILTER}" | sort | uniq)
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    # Output list of files to process.
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    if [[ $? -eq 0 ]];then
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        echo "$FILES"
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    fi
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}