#!/bin/bash
#
# $Id: repodiff 3 2006-09-21 18:48:39Z sevkin $
#
# subversion repository incremental backup over e-mail
#
# (c) 2006 Vsevolod Balashov under terms of GNU GPL v.2 or later

SVNROOT=/var/svn
EMAIL=your@email.here
STORE=`mktemp -d`
GPGCRYPT=n

for REPO in `ls $SVNROOT`; do 
	REPOPATH=$SVNROOT/$REPO;
	if [ -r $REPOPATH/youngest ]; then
		LATEST=`cat $REPOPATH/youngest`
		YOUNGEST=`svnlook youngest $REPOPATH`
		if [ $LATEST -lt $YOUNGEST ]; then
			svnadmin dump $REPOPATH --incremental -r $LATEST:$YOUNGEST >$STORE/$REPO 2>/dev/null
		fi
	else
		svnadmin dump $REPOPATH --incremental >$STORE/$REPO 2>/dev/null
	fi 
	echo $YOUNGEST >$REPOPATH/youngest 
done

if [ `ls $STORE | wc -w` -gt 0 ]; then
	BACKUP=repodiff_`date -u +%Y%m%d%H%M%S`.tar.bz2
	ATTACH=$STORE/../$BACKUP
	tar  -C $STORE -cjf $ATTACH .
	if [ $GPGCRYPT = y ]; then
		gpg -e -r $EMAIL $ATTACH
		ATTACH=$ATTACH.gpg
	fi
	echo "." | mutt -c $EMAIL -a $ATTACH -s "repository incremental backup"
	rm -f $ATTACH
fi

rm -rf $STORE

# useradd -g root -s /bin/false -d /dev/null -c "SubVersion Daemon" svnserve
# mkdir /var/svn
# chown -R svnserve /var/svn
# update-inetd --add 'svn\tstream\ttcp\tnowait\tsvnserve\t/usr/sbin/tcpd\t/usr/bin/svnserve --inetd --root /var/svn'

$ sudo sudo -u svnserve svnadmin <command>

# CONFIGURATION
# =============

# Where your httpd log file is
log="current-http-accesslog"

# What files to exclude (request for those files won't be shown)
exclude="\.gif|\.jpg|\.png|\.ico|\.css|\.js"

# Width of request and referer columns (set it to match your terminal)
col_width=35


# MAIN SCRIPT
# ===========

# Check if log file actually exists (and is readable)
if [ ! -r "${log}" ]; then
echo "Cannot access log file: $log"
exit 0
fi

# After startup we will output few lines
start=`wc -l < "${log}"`
start=$(( $start - 30 ))
if (( ${start} < 0 ))
then start=$((0))
fi

# Main loop
while :
do
  end=`wc -l < "${log}"`
  end="${end##* }"
  if (( ${end} > ${start} ))
  then
    start=$(( $start + 1 ))
    sed -n "${start},${end}p" "${log}" | egrep -v "${exclude}" | awk -v col_width=$col_width '{

      # we are only interested in GET/POST requests
      if ( match($0, /"(GET|POST).*?"/) > 0 )
      {
        split($0, fields, "\"")

        # IP_ADDRESS
        tmp = $1
        while ( length(tmp) < 15 ) tmp = tmp " "
        printf "%s", tmp " "
    
        # HTTP_REQUEST (GET/POST)
        tmp = substr(fields[2], 0, index(fields[2], "HTTP/") - 1 )
        tmp = substr(tmp, index(tmp, " ") + 1, col_width)
        while ( length(tmp) < col_width ) tmp = tmp " "
        printf "%s", tmp " "
    
        # REFERER (the juice)
        tmp = fields[4]
        while ( length(tmp) < col_width ) tmp = tmp " "
        printf "%s", tmp " "
    
        # USER_AGENT
        printf "%s", fields[6]
    
        # new line at the end
        printf "\n"
      }
    }'

    start=${end}
  fi

  # this is an endless loop that sleeps every second
  sleep 1
done