contrib/README.mold_remover


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Mold Remover

Mold Remover is a short python script which integrates with fetchmail 
<http://fetchmail.berlios.de/> and allows the user to specify the 
number of days that mail should remain on the pop3 server before being 
deleted. 

It is released under the GNU GPL <http://www.gnu.org/copyleft/gpl.html>.

Usage: 
Set up fetchmail to run with keep and uidl options.
Edit the mold_remover.py file to specify the mailserver address
and login/password details. Also specify the UIDL file created by
fetchmail (this is created automatically by fetchmail when uidl option
is selected in the fetchmailrc file usually at
/var/mail/.fetchmail-UIDL-cache). Remember to chmod the moldremover
script to 700 so that passwords cannot be read. Next, edit the field to
set how many days you want the mail to be left on the server. Lastly
create a script to run moldremover.py with python which can either be
run as a cron job or as part of your connection script. It is advisable
to stop fetchmail before mold remover is run and then to restart
fetchmail afterwards. Here is an example /etc/cron.daily/ script:

#!/bin/bash
/etc/init.d/fetchmail stop >> /var/log/messages
/usr/bin/python /usr/local/bin/mold_remover.py >> /var/log/messages
/etc/init.d/fetchmail start >> /var/log/messages

Please feel free to email me (jmstone@dsl.pipex.com) if you have any questions or bugfixes!

James Stone
#!/bin/sh
#
# install - install a program, script, or datafile
# This comes from X11R5 (mit/util/scripts/install.sh).
#
# Copyright 1991 by the Massachusetts Institute of Technology
#
# Permission to use, copy, modify, distribute, and sell this software and its
# documentation for any purpose is hereby granted without fee, provided that
# the above copyright notice appear in all copies and that both that
# copyright notice and this permission notice appear in supporting
# documentation, and that the name of M.I.T. not be used in advertising or
# publicity pertaining to distribution of the software without specific,
# written prior permission.  M.I.T. makes no representations about the
# suitability of this software for any purpose.  It is provided "as is"
# without express or implied warranty.
#
# Calling this script install-sh is preferred over install.sh, to prevent
# `make' implicit rules from creating a file called install from it
# when there is no Makefile.
#
# This script is compatible with the BSD install script, but was written
# from scratch.  It can only install one file at a time, a restriction
# shared with many OS's install programs.


# set DOITPROG to echo to test this script

# Don't use :- since 4.3BSD and earlier shells don't like it.
doit="${DOITPROG-}"


# put in absolute paths if you don't have them in your path; or use env. vars.

mvprog="${MVPROG-mv}"
cpprog="${CPPROG-cp}"
chmodprog="${CHMODPROG-chmod}"
chownprog="${CHOWNPROG-chown}"
chgrpprog="${CHGRPPROG-chgrp}"
stripprog="${STRIPPROG-strip}"
rmprog="${RMPROG-rm}"
mkdirprog="${MKDIRPROG-mkdir}"

transformbasename=""
transform_arg=""
instcmd="$mvprog"
chmodcmd="$chmodprog 0755"
chowncmd=""
chgrpcmd=""
stripcmd=""
rmcmd="$rmprog -f"
mvcmd="$mvprog"
src=""
dst=""
dir_arg=""

while [ x"$1" != x ]; do
    case $1 in
	-c) instcmd="$cpprog"
	    shift
	    continue;;

	-d) dir_arg=true
	    shift
	    continue;;

	-m) chmodcmd="$chmodprog $2"
	    shift
	    shift
	    continue;;

	-o) chowncmd="$chownprog $2"
	    shift
	    shift
	    continue;;

	-g) chgrpcmd="$chgrpprog $2"
	    shift
	    shift
	    continue;;

	-s) stripcmd="$stripprog"
	    shift
	    continue;;

	-t=*) transformarg=`echo $1 | sed 's/-t=//'`
	    shift
	    continue;;

	-b=*) transformbasename=`echo $1 | sed 's/-b=//'`
	    shift
	    continue;;

	*)  if [ x"$src" = x ]
	    then
		src=$1
	    else
		# this colon is to work around a 386BSD /bin/sh bug
		:
		dst=$1
	    fi
	    shift
	    continue;;
    esac
done

if [ x"$src" = x ]
then
	echo "install:	no input file specified"
	exit 1
else
	true
fi

if [ x"$dir_arg" != x ]; then
	dst=$src
	src=""
	
	if [ -d $dst ]; then
		instcmd=:
	else
		instcmd=mkdir
	fi
else

# Waiting for this to be detected by the "$instcmd $src $dsttmp" command
# might cause directories to be created, which would be especially bad 
# if $src (and thus $dsttmp) contains '*'.

	if [ -f $src -o -d $src ]
	then
		true
	else
		echo "install:  $src does not exist"
		exit 1
	fi
	
	if [ x"$dst" = x ]
	then
		echo "install:	no destination specified"
		exit 1
	else
		true
	fi

# If destination is a directory, append the input filename; if your system
# does not like double slashes in filenames, you may need to add some logic

	if [ -d $dst ]
	then
		dst="$dst"/`basename $src`
	else
		true
	fi
fi

## this sed command emulates the dirname command
dstdir=`echo $dst | sed -e 's,[^/]*$,,;s,/$,,;s,^$,.,'`

# Make sure that the destination directory exists.
#  this part is taken from Noah Friedman's mkinstalldirs script

# Skip lots of stat calls in the usual case.
if [ ! -d "$dstdir" ]; then
defaultIFS='	
'
IFS="${IFS-${defaultIFS}}"

oIFS="${IFS}"
# Some sh's can't handle IFS=/ for some reason.
IFS='%'
set - `echo ${dstdir} | sed -e 's@/@%@g' -e 's@^%@/@'`
IFS="${oIFS}"

pathcomp=''

while [ $# -ne 0 ] ; do
	pathcomp="${pathcomp}${1}"
	shift

	if [ ! -d "${pathcomp}" ] ;
        then
		$mkdirprog "${pathcomp}"
	else
		true
	fi

	pathcomp="${pathcomp}/"
done
fi

if [ x"$dir_arg" != x ]
then
	$doit $instcmd $dst &&

	if [ x"$chowncmd" != x ]; then $doit $chowncmd $dst; else true ; fi &&
	if [ x"$chgrpcmd" != x ]; then $doit $chgrpcmd $dst; else true ; fi &&
	if [ x"$stripcmd" != x ]; then $doit $stripcmd $dst; else true ; fi &&
	if [ x"$chmodcmd" != x ]; then $doit $chmodcmd $dst; else true ; fi
else

# If we're going to rename the final executable, determine the name now.

	if [ x"$transformarg" = x ] 
	then
		dstfile=`basename $dst`
	else
		dstfile=`basename $dst $transformbasename | 
			sed $transformarg`$transformbasename
	fi

# don't allow the sed command to completely eliminate the filename

	if [ x"$dstfile" = x ] 
	then
		dstfile=`basename $dst`
	else
		true
	fi

# Make a temp file name in the proper directory.

	dsttmp=$dstdir/#inst.$$#

# Move or copy the file name to the temp name

	$doit $instcmd $src $dsttmp &&

	trap "rm -f ${dsttmp}" 0 &&

# and set any options; do chmod last to preserve setuid bits

# If any of these fail, we abort the whole thing.  If we want to
# ignore errors from any of these, just make sure not to ignore
# errors from the above "$doit $instcmd $src $dsttmp" command.

	if [ x"$chowncmd" != x ]; then $doit $chowncmd $dsttmp; else true;fi &&
	if [ x"$chgrpcmd" != x ]; then $doit $chgrpcmd $dsttmp; else true;fi &&
	if [ x"$stripcmd" != x ]; then $doit $stripcmd $dsttmp; else true;fi &&
	if [ x"$chmodcmd" != x ]; then $doit $chmodcmd $dsttmp; else true;fi &&

# Now rename the file to the real destination.

	$doit $rmcmd -f $dstdir/$dstfile &&
	$doit $mvcmd $dsttmp $dstdir/$dstfile 

fi &&


exit 0