Blame Scripts/Bash/Functions/Render/Docbook/docbook_doTranslation.sh

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#!/bin/bash
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#
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# docbook_doTranslation.sh -- This function standardizes the way
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# translation files are applied to DocBook design models in order to
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# produce the translated instance that is used to expand translation
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# markers and produce different output formats.
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#
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# Assuming no translation file exists, an untranslated instance is
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# taken from the design model and created (i.e., just a copy) from it.
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# Using a design model instance (translated or not) is required in
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# order to expand translation markers safely.
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#
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# Copyright (C) 2009, 2010, 2011, 2012 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 docbook_doTranslation {
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    # Define which command will be used to output the template
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    # content. This is required because template files might be found
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    # as compressed files inside the repository.
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    local COMMAND="/bin/cat"
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    if [[ $(file -b -i $TEMPLATE) =~ '^application/x-gzip$' ]];then
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        COMMAND="/bin/zcat"
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    fi
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    # Move into template's directory in order to satisfy relative
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    # entities.  Take care that some XML documents (e.g., DocBook
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    # documents) can use entities relatively from their base
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    # locations. In order to process such documents, it is necessary
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    # to put the template directory up in the directory stack and
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    # create the instance from there. Thus, it is possible to expand
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    # relative entities correctly when validating the document.
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    pushd $(dirname $TEMPLATE) > /dev/null
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    # Verify translation file existence and create template
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    # instance accordingly.
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    if [[ -f ${TRANSLATION} ]];then
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        # Print final location of translation file.
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        cli_printMessage "${TRANSLATION}" --as-translation-line
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        # Create translation instance to combine both template
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        # translation and licenses translations.
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        local TRANSLATION_INSTANCE=${TMPDIR}/message.po
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        # Define path to DocBook locales using models as reference.
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        local DOCBOOK_LOCALES=$(echo $DOCBOOK_MODELS \
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            | sed 's!^!Locales/!')
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        # Define list of all locale files you want to combine.
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        local DOCBOOK_PO_FILES="${DOCBOOK_LOCALES}/Gpl/${CLI_LANG_LC}/messages.po \
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            ${DOCBOOK_LOCALES}/Gfdl/${CLI_LANG_LC}/messages.po \
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            ${TRANSLATION}"
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        # Be sure the files we want to combine do exist.
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        cli_checkFiles -e ${DOCBOOK_PO_FILES}
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        # Combine license translations with template translation in
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        # order to reuse licenses translations in template files
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        # without including them in template portable objects. In the
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        # case of DocBook templates, translations related to licenses
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        # are required because license content is expanded at
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        # execution time inside the DocBook instance used by XSL
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        # processor during transformation.
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        msgcat --output=${TRANSLATION_INSTANCE} \
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            --width=70 --no-location --use-first ${DOCBOOK_PO_FILES}
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        # Create the translated instance of design model.
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        ${COMMAND} ${TEMPLATE} | xml2po -a -l ${CLI_LANG_LL} \
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            -p ${TRANSLATION_INSTANCE} -o ${INSTANCE} -
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        # Remove .xml2po.mo temporal file.
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        if [[ -f ${PWD}/.xml2po.mo ]];then
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            rm ${PWD}/.xml2po.mo
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        fi
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        # Remove instance created to store both licenses and template
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        # translations.
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        if [[ -f ${TRANSLATION_INSTANCE} ]];then
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            rm ${TRANSLATION_INSTANCE}
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        fi
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    else
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        # Create the non-translated instance of design model. 
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        ${COMMAND} ${TEMPLATE} > ${INSTANCE}
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    fi
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    # Return to where we were.
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    popd > /dev/null
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    # Verify instance existence.
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    cli_checkFiles -e $INSTANCE
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}