#!/bin/bash

#

# cli_getRepoStatus.sh -- This function requests the working copy

# using the svn status command and returns the first character in the

# output line, as described in svn help status, for the LOCATION

# specified. Use this function to perform verifications based a

# repository LOCATION status. 

#

# 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 cli_getRepoStatus {

    local LOCATION="$1"

    local STATUS=''

    # Define regular expression pattern to retrive first column,

    # returned by subversion status command. This column is one

    # character column as describes `svn help status' command.

    local PATTERN="^( |A|C|D|I|M|R|X|\?|!|~).+$"

    # Verify the file used as source to retrive its status

    # information. We only use regular files or directories inside the

    # working copy.

    cli_checkFiles "$LOCATION" 'fd'

    cli_checkFiles "$LOCATION" 'isInWorkingCopy'

    # Use subversion `status' command to retrive the first character

    # in the output.

    STATUS="$(svn status "$LOCATION" --quiet | sed -r "s/${PATTER}/\1/")"

    # Sanitate status output.

    if [[ "$STATUS" == '' ]];then

        # If status is empty, there is no output error and we assume

        # file being checked doesn't have changes either, so redefine

        # status as `no modification'.

        STATUS=' '

    elif [[ ! "$STATUS" =~ "$PATTERN" ]];then

        # If status doesn't match the regular expression pattern

        # defined previusly, we assume file being checked is not under

        # version control, so we redefine status as `item is not under

        # version control'.

        STATUS='?'

    fi

    # Outout status information.

    echo -n "$STATUS"

}