Blame Scripts/Functions/Help/help.sh

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#!/bin/bash
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#
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# help.sh -- This function initializes the interface used by
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# centos-art.sh script to perform documentation tasks through
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# different documentation backends.
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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
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# (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., 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 help {
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    # Initialize action name with an empty value.
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    local ACTIONNAM=''
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    # Initialize search option (`--search'). This option is used to
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    # look for documentation inside documentation backends.
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    local FLAG_SEARCH=""
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    # Initialize the backend flag (`--backend'). This option sets the
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    # documentation backed used to perform documentation actions.
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    local FLAG_BACKEND='texinfo'
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    # Initialize manual's language.
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    local MANUAL_L10N=$(cli_getCurrentLocale)
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    # Initialize arrays related to documentation entries. Arrays
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    # defined here contain all the information needed to process
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    # documentation entries written in texinfo format.
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    local -a MANUAL_SLFN
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    local -a MANUAL_DIRN
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    local -a MANUAL_CHAN
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    local -a MANUAL_SECN
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    # Initialize counter of non-option arguments.
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    local MANUAL_DOCENTRY_COUNT=0
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    local MANUAL_DOCENTRY_ID=0
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    # Interpret option arguments passed through the command-line.
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    ${FUNCNAM}_getOptions
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    # Redefine arrays related to documentation entries using
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    # non-option arguments passed through the command-line. At this
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    # point all options have been removed from ARGUMENTS and
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    # non-option arguments remain. Evaluate ARGUMENTS to retrive the
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    # information related documentation entries from there.
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    ${FUNCNAM}_getEntries
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    # Syncronize changes between repository and working copy. At this
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    # point, changes in the repository are merged in the working copy
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    # and changes in the working copy committed up to repository.
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    cli_syncroRepoChanges ${MANUAL_BASEDIR}
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    # Initialize backend functionalities. At this point we load all
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    # functionalities required into the centos-art.sh's execution
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    # environment and make them available, this way, to perform
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    # backend-specific documentation tasks.
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    cli_exportFunctions "${FUNCDIR}/${FUNCDIRNAM}/$(cli_getRepoName \
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        ${FLAG_BACKEND} -d)" "${FLAG_BACKEND}"
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    # Execute backend-specific documentation tasks for each
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    # documentation entry specified in the command-line, individually.
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    # Notice that we've stored all documentation entries passed as
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    # non-option arguments in array variables in order to process them
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    # now, one by one.  This is particularily useful when we need to
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    # reach items in the array beyond the current iteration cycle. For
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    # example, when we perform actions that require source and target
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    # locations (e.g., copying and renaming): we use the current value
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    # as source location and the second value in the array as target
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    # location; both defined from the first iteration cycle.
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    while [[ $MANUAL_DOCENTRY_ID -lt $MANUAL_DOCENTRY_COUNT ]];do
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        # Define name used by manual's main definition file.
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        MANUAL_NAME=${MANUAL_SLFN[${MANUAL_DOCENTRY_ID}]}
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        # Define absolute path to directory holding manual's main
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        # definition file.
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        MANUAL_TLDIR="${HOME}/artwork/branches/Manuals/$(cli_getRepoName \
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            ${FLAG_BACKEND} -d)/${MANUAL_DIRN[${MANUAL_DOCENTRY_ID}]}"
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        # Define chapter name.
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        MANUAL_CHAPTER_NAME=${MANUAL_CHAN[${MANUAL_DOCENTRY_ID}]}
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        # Define section name.
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        MANUAL_SECTION_NAME=${MANUAL_SECN[${MANUAL_DOCENTRY_ID}]}
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        # Execute backend-specific documentation tasks.
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        ${FLAG_BACKEND}
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        # Increment documentation entry counter id.
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        MANUAL_DOCENTRY_ID=$(($MANUAL_DOCENTRY_ID + 1))
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    done
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    # Rebuild output files to propagate recent changes.
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    ${FLAG_BACKEND}_updateOutputFiles
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    # Commit changes from working copy to central repository only.  At
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    # this point, changes in the repository are not merged in the
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    # working copy, but chages in the working copy do are committed up
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    # to repository.
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    cli_commitRepoChanges ${MANUAL_BASEDIR}
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}