Blame Scripts/Functions/cli_checkPathComponent.sh

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#!/bin/bash
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#
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# cli_checkPathComponent.sh -- This function checks parts/components
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# from repository paths. Generally, the path information is passed to
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# the function's first positional argument and the part/component we
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# want to check is passed to the function's second positional
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# argument. If the second argument is not passed, then the first
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# argument is assumed to be the part/component we want to check, and
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# the action value (ACTIONVAL) variable is used instead as source path
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# information.
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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 cli_checkPathComponent {
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    local -a PATTERNS
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    local LOCATION=''
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    local OPTION=''
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    local MESSAGE=''
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    # Define location which we retrive information from.
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    if [[ "$#" -eq 1 ]];then
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        LOCATION="$ACTIONVAL"
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        OPTION="$1"
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    elif [[ "$#" -eq 2 ]];then
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        LOCATION="$1"
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        OPTION="$2"
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    else
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        cli_printMessage "`gettext "Invalid arguments."`" --as-error-line
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    fi
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    # Define patterns.
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    PATTERNS[0]="^.+/$(cli_getPathComponent "${LOCATION}" '--release-pattern')/.*$"
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    PATTERNS[1]=$(cli_getPathComponent "${LOCATION}" '--release-architecture')
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    PATTERNS[2]=$(cli_getPathComponent "${LOCATION}" '--release-theme')
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    # Identify which part of the release we want to output.
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    case "$OPTION" in
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        '--release' )
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            if [[ $LOCATION =~ ${PATTERN[0]} ]];then
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                MESSAGE="`eval_gettext "The release \\\`\\\$LOCATION' is not valid."`"
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            fi
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            ;;
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        '--architecture' )
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            if [[ $LOCATION =~ ${PATTERN[1]} ]];then
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                MESSAGE="`eval_gettext "The architecture \\\`\\\$LOCATION' is not valid."`"
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            fi
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            ;;
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        '--theme' )
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            if [[ $LOCATION =~ ${PATTERN[2]} ]];then
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                MESSAGE="`eval_gettext "The theme \\\`\\\$LOCATION' is not valid."`"
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            fi
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            ;;
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        '--default' | * )
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            if [[ $LOCATION == '' ]] \
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                || [[ $LOCATION =~ '(\.\.(/)?)' ]] \
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                || [[ ! $LOCATION =~ '^[A-Za-z0-9\.:/_-]+$' ]]; then 
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                MESSAGE="`eval_gettext "The value \\\`\\\$LOCATION' is not valid."`"
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            fi
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            ;;
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    esac
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    # Output message.
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    if [[ $MESSAGE != '' ]];then
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        cli_printMessage "$MESSAGE" --as-error-line
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    fi
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}