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|
#!/bin/bash
#
# LinPac mail archivation tool
# (c) 1999 by Radek Burget OK2JBG
#
# This script archives messages older than specified number of days
# and deletes them
#
LIST_PATH="/var/ax25/ulistd"
MAIL_PATH="/var/ax25/mail"
###########################################################################
# Print a list of messages ################################################
message_list()
{
awk '
{
printf "%s ", $1
}
' ${LIST_PATH}/$BBS_CALL
}
###########################################################################
# List new messages #######################################################
list_new()
{
awk -v "LIMIT=$1" '
{
if (LIMIT <= $1) print $0
}
' ${LIST_PATH}/$BBS_CALL
}
###########################################################################
# List old messages #######################################################
list_old()
{
awk -v "LIMIT=$1" '
{
if (LIMIT > $1) print $0
}
' ${LIST_PATH}/$BBS_CALL
}
###########################################################################
# Print a list of messages older than $1 and files exist
###########################################################################
older_messages()
{
for NUM in `message_list`; do
if [ $1 -gt $NUM ]; then
if [ -e ${MAIL_PATH}/$BBS_CALL/$NUM ]; then
echo $NUM
fi
else
exit 0
fi
done
}
###########################################################################
# Print a date of this message ############################################
message_date()
{
awk '
BEGIN {
FS = "[:/]"
}
/^R:/ {
if (FNR == 1) print $2
}
' ${MAIL_PATH}/$BBS_CALL/$1
}
###########################################################################
# Print the first message number where the date of the message ############
# is newer than specified number of days. #################################
first_message()
{
# date of last message
LASTDATE="0"
# scan all messages
for NUM in `message_list`
do
if [ -r ${MAIL_PATH}/${BBS_CALL}/$NUM ]; then
LASTDATE=`message_date $NUM`
if [ ! $MDATE -gt $LASTDATE ]; then
echo $NUM
exit 0
fi
fi
done
# nothing has been found - return last+1
echo $(($NUM+1))
exit 0
}
###########################################################################
###########################################################################
if [ ! $# -eq 2 ]; then
echo 'Usage: archive_mail <bbs_callsign> <days>'
echo archives messages older than specified number of days and deletes them
exit 1
fi
BBS_CALL=`echo $1 | awk '{ print toupper($0) }'`
MDATE=`date --date "$2 days ago" '+%y%m%d'`
if [ ! -r ${LIST_PATH}/$BBS_CALL ]; then
echo List for $BBS_CALL doesn\'t exist
exit 2
fi
if [ ! -d ${MAIL_PATH}/$BBS_CALL ]; then
echo Mail directory for $BBS_CALL doesn\'t exist
exit 3
fi
echo Checking message dates
FIRSTNUM=`first_message`
echo Archiving messages up to number $FIRSTNUM
ARCNAME=${MAIL_PATH}/${BBS_CALL}/archive_`date +%y%m%d`.tar.gz
echo Archiving to "\"$ARCNAME\""
if [ -e $ARCNAME ]; then
echo Todays archive already exists - exiting
exit 1
fi
cd ${MAIL_PATH}/${BBS_CALL}
tar --remove-files -cvz -f $ARCNAME `older_messages $FIRSTNUM` >/dev/null
cd $OLDPWD
echo Updating mail index ${LIST_PATH}/${BBS_CALL}
if [ -e ${LIST_PATH}/${BBS_CALL}.old.gz ]; then
gzip -d ${LIST_PATH}/${BBS_CALL}.old.gz
fi
list_old $FIRSTNUM >>${LIST_PATH}/${BBS_CALL}.old
list_new $FIRSTNUM >>${LIST_PATH}/${BBS_CALL}.new
mv ${LIST_PATH}/${BBS_CALL}.new ${LIST_PATH}/${BBS_CALL}
gzip ${LIST_PATH}/${BBS_CALL}.old
echo Done.
|
