#!/bin/bash

#

# texinfo.sh -- This function initilializes the Texinfo documentation

# backend used by centos-art.sh script to produce and maintain Texinfo

# documentation manuals inside the working copy of The CentOS Artwork

# Repository.

#

# Copyright (C) 2009, 2010, 2011 The CentOS Artwork SIG

#

# This program is free software; you can redistribute it and/or modify

# it under the terms of the GNU General Public License as published by

# the Free Software Foundation; either version 2 of the License, or

# (at your option) any later version.

#

# This program is distributed in the hope that it will be useful, but

# WITHOUT ANY WARRANTY; without even the implied warranty of

# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

# General Public License for more details.

#

# You should have received a copy of the GNU General Public License

# along with this program; if not, write to the Free Software

# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.

#

# ----------------------------------------------------------------------

# $Id$

# ----------------------------------------------------------------------

function texinfo {

    # Define file extension used by source files inside manuals.

    MANUAL_EXTENSION='texinfo'

    # Define absolute path to chapter's directory. This is the place

    # where chapter-specific files are stored in.

    MANUAL_CHAPTER_DIR=${MANUAL_BASEDIR_L10N}/$(cli_getRepoName \

        "${MANUAL_CHAPTER_NAME}" -d | tr -d ' ' | sed -r 's!/$!!')

    # Define absolute path to template directory. This is the place

    # where we store locale directories (e.g., en_US, es_ES, etc.)

    # used to build manuals in texinfo format.

    MANUAL_TEMPLATE=${FUNCDIR}/${FUNCDIRNAM}/$(cli_getRepoName \

        ${FLAG_BACKEND} -d)/Templates

    # Define absolute path to language-specific template directory.

    # This is the place where we store locale-specific files used to

    # build manuals in texinfo format.

    MANUAL_TEMPLATE_L10N=${MANUAL_TEMPLATE}/${MANUAL_L10N}

    # Verify absolute path to language-speicific template directory.

    # If it doesn't exist, use English language as default location to

    # retrive template files.

    if [[ ! -d $MANUAL_TEMPLATE_L10N ]];then

        MANUAL_TEMPLATE_L10N=${MANUAL_TEMPLATE}/en_US

    fi

    # Define absolute path to manual's configuration file. This is the

    # file that controls the way texinfo template files are applied to

    # documentation entries once they have been created as well as the

    # style and order used for printing sections. There is one default

    # configuration file inside templates and, optionally, a

    # manual-specific configuration file.  When manual-specific

    # configuration file isn't found, the default configuration file

    # is used instead.

    if [[ -f ${MANUAL_BASEDIR_L10N}/${MANUAL_NAME}.conf ]];then

        MANUAL_CONFIG_FILE="${MANUAL_BASEDIR_L10N}/${MANUAL_NAME}.conf" 

    else

        MANUAL_CONFIG_FILE="${MANUAL_TEMPLATE}/manual.conf" 

    fi

    # Initialize document structure for new manuals.

    ${FLAG_BACKEND}_createStructure

    # Define documentation entry default values. To build the

    # documentation entry, we combine the manual's name, the chapter's

    # name and the section name retrived from the command-line.

    if [[ $MANUAL_CHAPTER_NAME == '' ]];then

        # When chapter option is not provided, discard the section

        # name and define documentation entry based on manual's main

        # definition file.

        MANUAL_ENTRY="${MANUAL_BASEFILE}.${MANUAL_EXTENSION}"

    elif [[ $MANUAL_CHAPTER_NAME != '' ]] && [[ $MANUAL_SECTION_NAME == '' ]];then

        # When chapter option is provided whith out a section name,

        # verify chapter's directory inside the manual,

        ${FLAG_BACKEND}_createChapter

        # and define documentation entry based on chapter's main

        # definition file.

        MANUAL_ENTRY="${MANUAL_BASEDIR_L10N}/${MANUAL_CHAPTER_NAME}/chapter.${MANUAL_EXTENSION}"

    elif [[ $MANUAL_CHAPTER_NAME != '' ]] && [[ $MANUAL_SECTION_NAME != '' ]];then

        # When both the chapter option and non-option arguments are

        # provided, define documentation entries based on manual,

        # chapter and non-option arguments.

        MANUAL_ENTRY="$(${FLAG_BACKEND}_getEntry "$MANUAL_SECTION_NAME")"

    else

        cli_printMessage "`gettext "The parameters you provided are not supported."`" --as-error-line

    fi

    # Execute action names. Notice that we've separated execution of

    # action names in order to control and save differences among

    # them.

    if [[ $ACTIONNAM == "" ]];then

        # When no action name is provided to `centos-art.sh' script,

        # read manual's output in info format in order to provide a

        # way for people to get oriented about The CentOS Artwork

        # Repository and its automation tool, the centos-art.sh

        # script. Be sure the manual's output file does exist and

        # terminate the script execution once the reading is done.

        # Update manual's info output format.

        ${FLAG_BACKEND}_updateOutputFiles

        # Read Top node from manual's info output format.

        info --node="Top" --file=${MANUAL_BASEFILE}.info.bz2

        # Terminate script execution right here.

        exit

    elif [[ $ACTIONNAM =~ "^(copy|rename)Entry$" ]];then

        # Both `--copy' and `--rename' actions interpret non-option

        # arguments passed to `centos-art.sh' script in a special way.

        # In this configuration, only two non-option arguments are

        # used and interpreted from the first loop of their

        # interpretation.

        ${FLAG_BACKEND}_${ACTIONNAM}

        # Break interpretation of non-option arguments, to prevent the

        # second non-option argument from be considered a source

        # location.

        break

    elif [[ $ACTIONNAM =~ "^(search(Node|Index)|updateOutputFiles)$" ]];then

        # The two final actions of help functionality are precisely to

        # update manual output files and commit all changes from

        # working copy to central repository. In this situation, when

        # the `--update' action name is provided to `centos-art.sh',

        # don't duplicate the rendition of manual output files (e.g.,

        # one as action name and another as help's normal execution

        # flow) nor commit any change form working copy to central

        # repository (e.g., output files are not under version

        # control).

        ${FLAG_BACKEND}_${ACTIONNAM}

        # Terminate script execution right here. Actions realized in

        # this configuration doesn't need to update manual output

        # files, nor commit changes from working copy up to central

        # repository.

        exit

    else

        # Execute action names that follow help's execution flow as it

        # is, without any modification.

        ${FLAG_BACKEND}_${ACTIONNAM}

    fi

}