Blame Scripts/Bash/Functions/cli_checkRepoDirTarget.sh

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#!/bin/bash
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#
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# cli_checkRepoDirTarget.sh -- This function provides input validation
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# to repository entries considered as target location.
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#
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# Copyright (C) 2009-2011 Alain Reguera Delgado
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# 
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License as
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# published by the Free Software Foundation; either version 2 of the
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# License, or (at 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307
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# USA.
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# 
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# ----------------------------------------------------------------------
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# $Id$
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# ----------------------------------------------------------------------
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function cli_checkRepoDirTarget {
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    # Check target value before making an absolute path from it. 
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    if [[ $FLAG_TO == '' ]];then
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        cli_printMessage "`gettext "There is no destination to work with."`" 'AsErrorLine'
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        cli_printMessage "$(caller)" "AsToKnowMoreLine"
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    fi
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    if [[ $FLAG_TO =~ '(\.\.(/)?)' ]] \
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        || [[ ! $FLAG_TO =~ '^[A-Za-z0-9\.:/-]+$' ]];then
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        cli_printMessage "`eval_gettext "The value \\\`\\\$FLAG_TO' is not valid destination value."`" 'AsErrorLine'
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        cli_printMessage "$(caller)" "AsToKnowMoreLine"
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    fi
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    # Redefine target value to build repository absolute path from
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    # repository top level on. As we are removing
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    # /home/centos/artwork/ from all centos-art.sh output (in order to
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    # save horizontal output space), we need to be sure that all
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    # strings begining with trunk/..., branches/..., and tags/... use
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    # the correct absolute path. That is, you can refer trunk's
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    # entries using both /home/centos/artwork/trunk/... or just
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    # trunk/..., the /home/centos/artwork/ part is automatically added
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    # here. 
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    if [[ $FLAG_TO =~ '^(trunk|branches|tags)/.+$' ]];then
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        FLAG_TO=/home/centos/artwork/$FLAG_TO 
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    fi
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    # Check target value.
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    if [[ -a ${FLAG_TO} ]];then
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        # At this point target value does existent as working copy
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        # entry. We don't use existent locations as target.  So, print
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        # a message and stop script execution.
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        cli_printMessage "`eval_gettext "The location \\\`\\\$FLAG_TO' already exists."`" 'AsErrorLine'
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        cli_printMessage "$(caller)" 'AsToKnowMoreLine'
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    else
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        # At this point existent locations inside working copy and
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        # invalid urls have been discarded. Assume a new target
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        # location has being specified. So, build the absolute path
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        # for it.
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        # Add directory to the top of the directory stack.
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        pushd "$(dirname $FLAG_TO)" > /dev/null
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        # Check directory existence inside the repository.
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        if [[ $(pwd) =~ '^/home/centos/artwork' ]];then
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            # Re-define target value using absolute path.
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            FLAG_TO=$(pwd)/$(basename $FLAG_TO)
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        fi
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        # Remove directory from the directory stack.
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        popd > /dev/null
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        # Verify target location. It is required that target location
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        # points to an entry under (trunk|branches|tags)/Identity/...
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        # directory structure *only*.  Remember that Identity parent
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        # directory structure is the reference used to create parallel
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        # directories (i.e., documentation, configuration scripts,
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        # translations, etc.). We don't manipulate parallel
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        # directories with path ---or any other--- functionality
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        # directly.  Consider manipulation of parallel directories as
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        # a consequence of a previous manipulation of Identity parent
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        # directory structure.
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        if [[ ! ${FLAG_TO} =~ '^.+/(trunk|branches|tags)/Identity/.+$' ]];then
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            cli_printMessage "`eval_gettext "cannot create \\\`\\\$FLAG_TO': It isn't an identity directory structure."`" 'AsErrorLine'
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            cli_printMessage "$(caller)" 'AsToKnowMoreLine'
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        fi
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    fi
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}