#!/bin/bash

#

# help_removeEntry.sh -- This function removes a documentation entry

# from your working copy documentation structure.

#

# Copyright (C) 2009, 2010 Alain Reguera Delgado

# 

# 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307

# USA.

# 

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

# $Id$

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

function help_removeEntry {

    # Define variables as local to avoid conflicts outside.

    local ENTRIES=''

    local ENTRIES_COUNTER=0

    local LOCATION=''

    # Check if the entry has been already removed.

    if [[ ! -f $ENTRY ]];then

        cli_printMessage "`gettext "The following entry doesn't exist:"`"

        cli_printMessage "$ENTRY" "AsResponseLine"

        cli_printMessage "$(caller)" "AsToKnowMoreLine"

    fi

    # Define entries. Start with the one being processed currently.

    ENTRIES=$ENTRY

    # Define root location to look for entries.

    LOCATION=$(echo $ENTRY | sed -r 's!\.texi$!!')

    # Re-define location to match the chapter's root directory. This

    # applies when you try to remove the whole chapter from the

    # working copy (e.g., centos-art help --remove=/home/centos/artwork/trunk/).

    if [[ $ENTRY =~ "${MANUALS_FILE[7]}$" ]];then

        LOCATION=$(dirname $ENTRY)

    fi

    # Look for dependent entries. In this context, dependent entries

    # are all files ending in .texi which have a directory name that

    # matches the file name (without .texi extension) of the entry

    # being processed currently. See LOCATION default definition

    # above.  If location directory doesn't exist it is probably

    # because there is no dependent entries.

    if [[ -d $LOCATION ]];then

        for ENTRY in $(find $LOCATION -name '*.texi');do

            ENTRIES="$ENTRIES $ENTRY $(dirname $ENTRY)"

            ENTRIES_COUNTER=$(($ENTRIES_COUNTER + 1))

        done

    fi

    # Remove duplicated lines from entries list.

    ENTRIES=$(echo "$ENTRIES" | tr ' ' "\n" | sort -r | uniq)

    # Show a verification message before doing anything.

    cli_printMessage "`ngettext "The following entry will be removed:" \

                               "The following entries will be removed:" \

                               $ENTRIES_COUNTER`"

    # Show list of affected entries.

    for ENTRY in $ENTRIES;do

        cli_printMessage "$ENTRY" "AsResponseLine"

    done

    cli_printMessage "`gettext "Do you want to continue?"`" "AsYesOrNoRequestLine"

    # Re-define ENTRY using affected entries as reference.

    for ENTRY in $ENTRIES;do

        # Show which entry is being removed.

        cli_printMessage "$ENTRY" "AsRemovingLine"

        # Remove documentation entry. At this point, documentation

        # entry can be under version control or not versioned at all.

        # Here we need to decide how to remove documentation entries

        # based on whether they are under version control or not.

        if [[ "$(cli_getRepoStatus "$ENTRY")" == ' ' ]];then

            # Documentation entry is under version control and clean

            # of changes. Only if documentation entry is clean of

            # changes we can mark it for deletion. So use subversion's

            # `del' command to do so.

            eval svn del "$ENTRY" --quiet

        elif [[ "$(cli_getRepoStatus "$ENTRY")" == '?' ]] \

            || [[ "$(cli_getRepoStatus "$ENTRY")"  == '' ]] ;then

            # Documentation entry is not under version control, so we

            # don't care about changes inside unversioned

            # documentation entries at all. If you say centos-art.sh

            # script to remove an unversion documentation entry it

            # will do so, using convenctional `rm' command.

            if [[ -d "$ENTRY" ]];then

                rm -r "$ENTRY"

            else

                rm "$ENTRY"

            fi

        else

            # Documentation entry is under version control and it does

            # have changes. We don't remove a versioned documentation

            # entry with changes. So print a message about it and stop

            # script execution.

            cli_printMessage "`gettext "The documentation entry cannot be removed."`" 'AsErrorLine'

            cli_printMessage "$(caller)" 'AsToKnowMoreLine'

        fi

        # Update section's menu and nodes to reflect the fact that

        # documentation entry has been removed.

        help_updateMenu "remove-entry"

        help_updateNodes

    done

    # Update chapter's menu and nodes in the master texinfo document.

    # This is mainly applied when one of the chapters (e.g., trunk/,

    # tags/, or branches/) is removed.

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

        help_updateChaptersMenu 'remove-entry'

        help_updateChaptersNodes

    fi

    # Update manuals' related output files.

    help_updateOutputFiles

}