Blame Scripts/Functions/Help/Texinfo/texinfo_deleteEntry.sh

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#!/bin/bash
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#
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# texinfo_deleteEntry.sh -- This function removes a documentation entry
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# from documentation directory structure.
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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 texinfo_deleteEntry {
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    local MANUAL_ENTRY=''
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    local MANUAL_ENTRY_DIR=''
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    local MANUAL_ENTRY_SUBDIR=''
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    # Define list of entries to remove using the entry specified in
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    # the command line.
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    local MANUAL_ENTRIES=$(${MANUAL_BACKEND}_getEntry "$@")
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    # Print separator line.
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    cli_printMessage '-' --as-separator-line
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    # Define list of dependen entries. Dependent entries are stored
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    # inside a directory with the same name of the entry being
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    # removed.
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    for MANUAL_ENTRY in $MANUAL_ENTRIES;do
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        # Define directory where dependent documentation entries are
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        # stored in.
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        MANUAL_ENTRY_DIR=$(echo $MANUAL_ENTRY \
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            | sed -r "s/\.${MANUAL_EXTENSION}$//")
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        if [[ -d $MANUAL_ENTRY_DIR ]];then
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            # Add dependent documentation entries to the list of
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            # documentation entries that will be deleted.
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            MANUAL_ENTRIES="${MANUAL_ENTRIES} $(cli_getFilesList ${MANUAL_ENTRY_DIR} \
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                --pattern=".*\.${MANUAL_EXTENSION}")"
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            for MANUAL_ENTRY in $MANUAL_ENTRIES;do
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                # Define directory name for dependent documentation
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                # entries which have their own dependent directories.
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                MANUAL_ENTRY_SUBDIR=$(basename $MANUAL_ENTRY \
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                    | sed -r "s/\.${MANUAL_EXTENSION}$//")
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                # Add directory paths from dependent documentation
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                # entries which have their own dependent directories
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                # to the list of documentation entries that will be
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                # deleted.
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                MANUAL_ENTRIES="${MANUAL_ENTRIES} $(cli_getFilesList \
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                    ${MANUAL_ENTRY_DIR} \
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                    --pattern=".*/${MANUAL_ENTRY_SUBDIR}" \
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                    --type='d')"
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            done
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        fi
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    done
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    # Sanitate list of documentation entries that will be removed.
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    MANUAL_ENTRIES=$(echo ${MANUAL_ENTRIES} | tr ' ' "\n" | sort -r | uniq | tr "\n" ' ')
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    # Verify existence of entries before deleting them. We cannot
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    # delete an entry which doesn't exist. Assuming that an entry
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    # doesn't exist, end script execution with an error message.
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    cli_checkFiles "$MANUAL_ENTRIES"
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    # Remove documentation entry using Subversion's `delete' command
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    # to know when the action took place.  Do not use regular `rm'
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    # command here.
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    for MANUAL_ENTRY in $MANUAL_ENTRIES;do
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        cli_printMessage "$MANUAL_ENTRY" --as-deleting-line
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        svn del ${MANUAL_ENTRY} --quiet
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    done
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    # Verify exit status from subversion command to be sure everything
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    # went well. Otherwise stop script execution with an error
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    # message.
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    if [[ $? -ne 0 ]];then
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        cli_printMessage "`gettext "An error occurred when deleting entries."`" --as-toknowmore-line
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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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    # Print action message.
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    cli_printMessage "`gettext "Updating menus, nodes and cross-references."`" --as-response-line
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    # Process list of entries in order to update menus, nodes and
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    # cross references. Since we are verifying entry status before
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    # remove the we cannot update the information in the same loop we
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    # remove files. This would modify some file before be removed and
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    # that would stop script execution. Similary, if we do update
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    # menus, nodes and cross references before removing files it would
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    # be needed to remove farther status verification in order for the
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    # script to continue its execution. Thereby, I can't see a
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    # different way but removing files first using status verification
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    # and later go through entries list again to update menus, nodes
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    # and cross references in remaining files.
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    for MANUAL_ENTRY in ${MANUAL_ENTRIES};do
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        # Skip all directories, they are not documentation entries on
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        # themselves. Use documentation entries only.
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        if [[ ! $MANUAL_ENTRY =~ "\.${MANUAL_EXTENSION}$" ]];then
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            continue
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        fi
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        # Update menu and node definitions from manual sections to
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        # reflect the changes.
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        ${MANUAL_BACKEND}_updateMenu "remove-entry"
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        ${MANUAL_BACKEND}_updateNodes
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        # Update cross reference definitions from manual to reflect
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        # the changes.
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        ${MANUAL_BACKEND}_deleteCrossReferences $MANUAL_ENTRY
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    done
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}