Blame Scripts/Functions/Render/render_doBaseActions.sh

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#!/bin/bash
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#
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# render_doBaseActions.sh -- This function performs base-rendition
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# action for all files.
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#
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# Copyright (C) 2009, 2010, 2011 The CentOS Artwork SIG
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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 render_doBaseActions {
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    local -a FILES
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    local FILE=''
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    local OUTPUT=''
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    local TEMPLATE=''
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    local TEMPLATE_HAS_DOCTYPE=''
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    local PARENTDIR=''
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    local TRANSLATION=''
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    local EXTERNALFILE=''
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    local EXTERNALFILES=''
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    local THIS_FILE_DIR=''
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    local NEXT_FILE_DIR=''
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    local RENDER_EXTENSION=''
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    local COUNT=0
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    # Verify default directory where design models are stored in.
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    cli_checkFiles "$(cli_getRepoTLDir)/Identity/Models/Themes/${FLAG_THEME_MODEL}" --directory
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    # Redefine parent directory for current workplace.
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    PARENTDIR=$(basename "${ACTIONVAL}")
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    # Define base location of template files.
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    render_getDirTemplate
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    # Loop through list of supported file extensions. 
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    for RENDER_EXTENSION in ${RENDER_EXTENSIONS};do
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        # Redefine name of rendition backend based on supported file
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        # extension.
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        if [[ $RENDER_EXTENSION == 'svg' ]];then
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            RENDER_BACKEND='svg'
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        elif [[ $RENDER_EXTENSION == 'docbook' ]];then
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            RENDER_BACKEND='docbook'
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        else
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           cli_printMessage "`eval_gettext "The \\\"\\\$RENDER_EXTENSION\\\" file extension is not supported yet."`" --as-error-line 
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        fi
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        # Define the list of files to process. Use an array variable
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        # to store the list of files to process. This make posible to
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        # realize verifications like: is the current base directory
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        # equal to the next one in the list of files to process?
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        # Questions like this is let us to know when centos-art.sh is
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        # leaving a directory structure and entering another. This
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        # information is required in order for centos-art.sh to know
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        # when to apply last-rendition actions.
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        #
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        # Another issue is that some directories might be named as if
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        # they were files (e.g., using a renderable extension like
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        # .docbook).  In these situations we need to avoid such
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        # directories from being interpreted as a renderable file. For
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        # this, pass the `--type="f"' option when building the list of
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        # files to process in order to retrive regular files only.
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        #
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        # Another issue to consider here, is that in some cases both
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        # templates and outputs might be in the same location. In
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        # these cases localized content are stored in the same
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        # location where template files are retrived from and we need
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        # to avoid using localized content from being interpreted as
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        # design models. In that sake, supress language-specific files
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        # from the list of files to process.
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        #
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        # Another issue to consider here, is the way of filtering. We
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        # cannot expand the pattern specified by FLAG_FILTER with a
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        # `.*' here (e.g., "${FLAG_FILTER}.*\.${RENDER_EXTENSION}")
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        # because that would suppress any possibility from the user to
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        # specifiy just one file name in locations where more than one
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        # file with the same name as prefix exists (e.g.,
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        # `repository.docbook', `repository-preamble.docbook' and
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        # `repository-parts.docbook').  Instead, pass filtering
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        # control to the user whom can use regular expression markup
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        # in the `--filter' option to decide whether to match
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        # `repository.docbook' only (e.g., through
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        # `--filter="repository"') or `repository-preamble.docbook'
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        # and `repository-parts.docbook' but not `repository.docbook'
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        # (e.g., through `--filter="repository-.*"').
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        for FILE in $(cli_getFilesList ${TEMPLATE} \
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            --pattern="${FLAG_FILTER}\.${RENDER_EXTENSION}" --type="f" \
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            | egrep -v '/[[:alpha:]]{2}_[[:alpha:]]{2}/');do
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            FILES[((++${#FILES[*]}))]=$FILE
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        done
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        # Verify list of files to process. Assuming no file is found,
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        # evaluate the next supported file extension.
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        if [[ ${#FILES[*]} -eq 0 ]];then
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            continue
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        fi
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        # Initialize backend-specific functionalities.
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        cli_exportFunctions "${RENDER_BACKEND_DIR}/$(cli_getRepoName \
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            ${RENDER_BACKEND} -d)" "${RENDER_BACKEND}"
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        # Start processing the base rendition list of FILES. Fun part
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        # approching :-).
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        while [[ $COUNT -lt ${#FILES[*]} ]];do
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            # Define base file.
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            FILE=${FILES[$COUNT]}
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            # Define the base directory path for the current file being
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            # process.
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            THIS_FILE_DIR=$(dirname ${FILES[$COUNT]})
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            # Define the base directory path for the next file that will
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            # be process.
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            if [[ $(($COUNT + 1)) -lt ${#FILES[*]} ]];then
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                NEXT_FILE_DIR=$(dirname ${FILES[$(($COUNT + 1))]})
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            else
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                NEXT_FILE_DIR=''
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            fi
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            # Print separator line.
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            cli_printMessage '-' --as-separator-line
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            # Define final location of translation file.
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            TRANSLATION=$(dirname $FILE \
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               | sed -r 's!trunk/(Manuals|Identity)!trunk/L10n/\1!')/$(cli_getCurrentLocale)/messages.po
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            # Define final location of template file.
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            TEMPLATE=${FILE}
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            # Verify design models file existence. We cannot continue
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            # with out it.
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            if [[ ! -f $TEMPLATE ]];then
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                cli_printMessage "`gettext "The template file doesn't exist."`" --as-error-line
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            fi
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            # Verify whether the design model uses DOCTYPE definition
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            # or not; and redefine related variable for further using.
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            egrep '^ /dev/null
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            TEMPLATE_HAS_DOCTYPE=$?
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            # Validate design model before processing it. This step is
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            # very important in order to detect document's
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            # malformations and warn you about it, so you can correct
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            # them before processing the document as input.  Notice
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            # that, here, validation is possible only for documents
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            # which have a DOCTYPE definition inside.
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            if [[ $TEMPLATE_HAS_DOCTYPE -eq 0 ]];then
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                # Print action message.
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                cli_printMessage "$TEMPLATE" --as-validating-line
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                # Validate document before processing it.  
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                xmllint --valid --noent --noout $TEMPLATE
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                if [[ $? -ne 0 ]];then
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                    cli_printMessage "`gettext "Validation failed."`" --as-error-line
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                fi
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            else
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                # Print action message.
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                cli_printMessage "$TEMPLATE" --as-template-line
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            fi
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            # Define final location of output directory.
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            render_getDirOutput
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            # Get relative path to file. The path string (stored in
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            # FILE) has two parts: 1. the variable path and 2. the
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            # common path.  The variable path is before the common
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            # point in the path string. The common path is after the
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            # common point in the path string. The common point is the
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            # name of the parent directory (stored in PARENTDIR).
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            #
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            # Identity/Models/Themes/.../Firstboot/3/splash-small.svg
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            # -------------------------^| the     |^------------^
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            # variable path             | common  |    common path
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            # -------------------------v| point   |    v------------v
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            # Identity/Images/Themes/.../Firstboot/Img/3/splash-small.png
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            #
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            # What we do here is remove the varibale path, the common
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            # point, and the file extension parts in the string
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            # holding the path retrived from design models directory
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            # structure.  Then we use the common path as relative path
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            # to store the the final image file.
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            #
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            # The file extension is removed from the common path
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            # because it is set when we create the final image file.
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            # This configuration let us use different extensions for
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            # the same file name.
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            #
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            # When we render using base-rendition action, the
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            # structure of files under the output directory will be
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            # the same used after the common point in the related
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            # design model directory structure.
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            FILE=$(echo ${FILE} \
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                | sed -r "s!.*${PARENTDIR}/!!" \
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                | sed -r "s/\.${RENDER_EXTENSION}$//")
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            # Define absolute path to final file (without extension).
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            FILE=${OUTPUT}/$(basename "${FILE}")
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            # Define instance name from design model.
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            INSTANCE=$(cli_getTemporalFile ${TEMPLATE})
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            # Apply translation file to design model to produce the design
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            # model translated instance. 
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            render_doTranslation
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            # Expand translation markers inside design model instance.
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            cli_expandTMarkers ${INSTANCE}
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            # Perform backend base-rendition.
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            ${RENDER_BACKEND}
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            # Remove template instance. 
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            if [[ -f $INSTANCE ]];then
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                rm $INSTANCE
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            fi
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            # Increment file counter.
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            COUNT=$(($COUNT + 1))
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        done
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        # Unset backend-specific functionalities.
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        cli_unsetFunctions "${RENDER_BACKEND_DIR}/$(cli_getRepoName \
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            ${RENDER_BACKEND} -d)" "${RENDER_BACKEND}"
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    done
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}