Text* Snippets: TextDrive Snippets courtesy of Peter Coopers handy little app

Add missing empty directories in .svn

steveh (Steve Hoeksema) — Thu, 28 Feb 2008 07:58:14 GMT

Fix errors like
svn: Your .svn/text-base directory may be missing or corrupt; run 'svn cleanup' and try again
svn: Can't open file 'blabla/.svn/text-base/entries': No such file or directory



require 'pathname'



def recurse(dir)

  for child in dir.children

    next unless child.directory?              # ignore files

    next if child.basename.to_s == '.svn'     # ignore .svn directory

    next unless (child + '.svn').exist?       # ignore unadded directories

    text_base_dir = child + '.svn/text-base'  # path to text-base dir

    next if text_base_dir.exist?              # ignore existing text-base dirs

    text_base_dir.mkdir

    puts text_base_dir

    recurse child

  end

end



recurse Pathname.new('.')

moving subversion server to another machine

deckard () — Wed, 27 Feb 2008 14:28:10 GMT

dump the repository to a text file



svnadmin dump repositoryPath > repository.dumpfile

create the new repository on the new machine



cd /path/to/new-repository-parent-directory

svnadmin create repository-name

svnadmin load repository-name < repository.dumpfile

transfer your local svn project to the new machine. Use absolute paths!



svn switch --relocate oldurl newurl

Example:



svn switch --relocate http://myoldcrapserver.com/svn/myfunkyproj svn+ssh://mykickingnewserver.com/var/svn/myfunkyproj



Tomcat connector for lighttpd:
mork554 () — Mon, 25 Feb 2008 11:04:32 GMT
To connect Tomcat to lighttpd use the following code:









server.modules  += ( "mod_proxy_backend_ajp13" )

$HTTP["url"] =~ "^/tomcat/" {

  proxy-core.balancer = "round-robin"

  proxy-core.protocol = "ajp13"

  proxy-core.backends = ( "localhost:8009" )

  proxy-core.max-pool-size = 16

}




export certain revision of file from svn
deckard () — Fri, 22 Feb 2008 14:08:47 GMT
Easier to just cat the revision you want and copy it over rather than try to check out a certain revision.





svn cat -r [REV] mydir/myfile > mydir/myfile




sort installed packages by size
hostmaster (hostmaster) — Fri, 22 Feb 2008 09:08:17 GMT
// sort installed packages by size





rpm -qa --queryformat="%{size} %{name}-%{version}-%{release}\n" | sort -rn | less




Django and Open-flash-charts
knmurphy () — Thu, 21 Feb 2008 17:55:56 GMT
// Found this on the django-users mailing list, need to test



ok, I finally got open-flash-chart to work.



1. create an xhtml-file and insert (something like) this:



            codebase="http://fpdownload.macromedia.com/pub/shockwave/cabs/

flash/swflash.cab#version=8,0,0,0"

        width="600"

        height="400"

        id="graph-2"

        align="middle">

    

    

    

    

    width=600&height=400&data=/chart_data/"

        quality="high"

        bgcolor="#FFFFFF"

        width="600"

        height="400"

        name="open-flash-chart"

        align="middle"

        allowScriptAccess="sameDomain"

        type="application/x-shockwave-flash"

        pluginspage="http://www.macromedia.com/go/getflashplayer"; />

    



2. define the url for the chart, eg: (r'^chart/$',

'www.views.charts.chart'),



3. define the url for the chart-data, e.g.: (r'^chart_data/$',

'www.views.charts.chart_data'),



4. the views:



def chart(request):



   ### nothing really required. whatever you want to do here. points

to the html-file created above



    return render_to_response('site/charts/chart.html', {

        'var': 'var',

    }, context_instance=RequestContext(request) )





def chart_data(request):



    import random



    g = graph()



    data_1 = []

    data_2 = []

    data_3 = []

    for i in range(12):

      data_1.append( random.randint(14,19) )

      data_2.append( random.randint(8,13) )

      data_3.append( random.randint(1,7) )



    g.title('PageViews (2007)', '{color: #999999; font-size: 16; text-

align: center}' );

    g.bg_colour = '#ffffff'



    # we add 3 sets of data:

    g.set_data( data_1 )

    g.set_data( data_2 )

    g.set_data( data_3 )



    # we add the 3 line types and key labels

    g.line_dot( 3, 5, '#333333', 'Page views', 10 )

    g.line_dot( 3, 5, '#666666', 'Visits', 10)    # <-- 3px thick +

dots

    g.line_hollow( 2, 4, '#999999', 'Unique visitors', 10 )





g.set_x_labels( 

'Jänner,Februar,März,April,Mai,Juni,Juli,August,September,Oktober,November,Dezember'.split(',')

 )

    g.set_x_label_style( 11, '0x666666', 2, 1)



    g.set_y_max(20)

    g.y_label_steps(4)

    g.set_y_label_style( 10, '0x666666')



    return HttpResponse(g.render())








script for migrating from UW-IMAP to Dovecot [PATCHED]
hostmaster (hostmaster) — Thu, 21 Feb 2008 15:32:33 GMT


#!/bin/bash



# A script for migrating from UW-IMAP to Dovecot

#

# By Andrew Ziem

# Copyright (c) 2007 Springs Rescue Mission.  All rights reserved.

#

#

# Moves UW-IMAP mboxes from two locations to ~/mail so that Dovecot

# can easily convert mboxes to Maildirs.  Mailboxes with whitespace

# should be handled properly, and IMAP subscriptions should be preserved.

#

#





# Edit the below variables



#HOME_USERS=/home

HOME_USERS=/home/users



#MAIL_SPOOL=/var/mail

MAIL_SPOOL=/var/spool/mail







# to this function pass the user name

function move_mailboxlist

{

	if [ ! -d "$HOME_USERS/$1" ];

	then

		echo "Error: $HOME_USERS/$1 does not exist"

		return 0

	fi



	# make ~/mail

	cd "$HOME_USERS/$1"

	mkdir mail

	chown "$1" mail



	# find each mbox and move it to ~/mail

	if [ ! -f ".mailboxlist" ];

	then

		echo "Warning: .mailboxlist does not exist for $1"

		return 0

	fi

	

	# cat .mailboxlist | while read line; do mv "${line}" ./mail/; done

	cat .mailboxlist | tr '\n' '\0' | xargs -0 mv -t ./mail/



	# preserve subscriptions (to prevent manual resubscriptions)

	mkdir Maildir

	chown "$1" Maildir

	cp -a .mailboxlist Maildir/subscriptions

}



# move inbox from $MAIL_SPOOL to ~/mail/inbox

function move_inbox

{

	if [ ! -f "${MAIL_SPOOL}/$1" ];

	then

		echo "Error: ${MAIL_SPOOL}/$1 does not exist"

		return 0

	fi

	cp "${MAIL_SPOOL}/$1" "${HOME_USERS}/$1/mail/inbox"

	chown "$1" "${HOME_USERS}/$1/mail/inbox"

}



if [ $# -eq 0 ];

then

	echo "First, did you edit the directory names in the script?"

	echo "Then, if you want to do a dry run, prefix mv and cp with echo."

	echo "Then, invoke $0 by passing one or more user names."

	exit

fi



for user in $@

do

	echo "*** Processing user $user"

	move_mailboxlist $user

	move_inbox $user

done




import data into mysql
deckard () — Wed, 20 Feb 2008 11:41:14 GMT
Things to note:

Mysql may not have access to the directory you've put the datafile. Use /tmp to overcome this problem.

Datafile name must be the same as the mysql table you're importing to.





mysqlimport -u username -p --columns=column_1,column_2 --fields-terminated-by=',' databasename /tmp/data_file_same_as_mysql_table_name




add apache to users group
dallas (dallas) — Tue, 19 Feb 2008 03:57:43 GMT
// this handy one liner is used on any new webserver..

// puts apache into the users group to allow dev teams etc..





sed -i 's/users:x:1000:admin/users:x:1000:admin,wwwrun/' /etc/group




Run ClamAV from a system service agent account
jv () — Fri, 15 Feb 2008 20:54:31 GMT
The following instructions on how to run ClamAV from a system service agent account (non-root) require an admin user account, a ClamAV setup as described here and the creation of a clamavadmin system service agent account as described here.



Use at your own risk!





First uncomment the following lines of code in the first script at http://textsnippets.com/posts/show/1405:





# create further subdirectories if necessary

...

#fi

#

#fi





Then save the file, start the script and enter the following:





You are going to create a system service agent account!



Enter first name: clamavadmin



Note: The last name is optional and defaults to "agent" if you just press !

Enter last name: 



Note: The user shell is optional and defaults to "/usr/bin/false" if you just press !

Enter user shell: /bin/bash



Note: The home directory is optional and defaults to "/private/var/empty" if you just press !

Enter home directory: /private/var/clamavadmin



System service agent account:  clamavadmin  successfully created!







# test



dscl . list /Groups GroupMembership

dscl . -read /Users/clamavadmin

dscl . -read /Groups/clamavadmin

sudo ls -ld /private/var/clamavadmin

sudo ls -l /private/var/clamavadmin/log/clamd.log

sudo ls -ld /private/var/clamavadmin/tmp

#sudo ls -l /private/var/clamavadmin/tmp/clamd   # will be created later by man clamd

sudo find /private/var/clamavadmin \( -type f -or -type d -or -type s \) -print0 | xargs -0 sudo ls -ldG







# add clamavadmin to group admin and group $(logname)

# add $(logname) to group clamavadmin

sudo dscl . -append /Groups/admin GroupMembership clamavadmin

sudo dscl . -append /Groups/$(logname) GroupMembership clamavadmin

sudo dscl . -append /Groups/clamavadmin GroupMembership $(logname)



#sudo dscl . -delete /Groups/admin GroupMembership clamavadmin 

#sudo dscl . -delete /Groups/$(logname) GroupMembership clamavadmin  

#sudo dscl . -delete /Groups/clamavadmin GroupMembership $(logname)   



# cf. http://textsnippets.com/posts/show/1402

dirmodes ~/Documents/ClamAV/Downloads/QueueDirectory





# copy update_clamd_db.sh

sudo cp /usr/local/sbin/update_clamd_db.sh /private/var/clamavadmin/update_clamd_db.sh

sudo chown clamavadmin:clamavadmin /private/var/clamavadmin/update_clamd_db.sh

sudo chmod 0750 /private/var/clamavadmin/update_clamd_db.sh

ls -l /private/var/clamavadmin/update_clamd_db.sh



# then change the following line in sudo nano  /private/var/clamavadmin/update_clamd_db.sh

/opt/local/bin/freshclam -u root

# ... to read ...

/opt/local/bin/freshclam -u clamavadmin





# get an overview of your ClamAV file & folder permissions in /opt

sudo find /opt \( -type f -or -type d \) -iregex ".*clam.*" -print0 | xargs -0 sudo ls -ldG



# set new ClamAV file & folder permissions

sudo find /opt  \( -type f -or -type d \) -iregex ".*clam.*" -print0 | xargs -0 sudo chown clamavadmin:clamavadmin

sudo find /opt  \( -type f -or -type d \) -iregex ".*clam.*" -print0 | xargs -0 sudo chmod 0750



# reset permissions

#sudo find /opt  \( -type f -or -type d \) -iregex ".*clam.*" -print0 | xargs -0 sudo chown root:wheel  

#sudo find /opt  \( -type f -or -type d \) -iregex ".*clam.*" -print0 | xargs -0 sudo chmod 0755





# test

sudo find /opt \( -type f -or -type d \) -iregex ".*clam.*" -print0 | xargs -0 sudo ls -ldG

sudo find /opt -not -user clamavadmin \( -type f -or -type d \) -iregex ".*clam.*" -print0 | xargs -0 sudo ls -ldG





# then modify clamd.conf

sudo nano /opt/local/etc/clamd.conf



LogFileMaxSize 10M

LogTime yes

FixStaleSocket yes

TCPAddr 127.0.0.1

MaxConnectionQueueLength 30

MaxThreads 20

ExitOnOOM yes

ScanOLE2 yes  # Microsoft Office documents and .msi files

ScanPDF yes

ArchiveMaxFileSize 100M

ArchiveMaxCompressionRatio 0

#VirusEvent echo virus: %v >> /path/to/file.txt



DatabaseDirectory /opt/local/share/clamav    # hardcoded

#LogFile /private/var/log/clamd.log

#TemporaryDirectory /private/var/tmp

#DatabaseDirectory /opt/local/share/clamav

#LocalSocket /tmp/clamd



#DatabaseDirectory /private/var/clamavadmin/share/clamav

LogFile /private/var/clamavadmin/log/clamd.log

TemporaryDirectory /private/var/clamavadmin/tmp

LocalSocket /private/var/clamavadmin/tmp/clamd







# modify net.clamav.clamd.plist



sudo launchctl unload -w /Library/LaunchDaemons/net.clamav.clamd.plist 2>/dev/null

sudo cp -p /Library/LaunchDaemons/net.clamav.clamd.plist /Library/LaunchDaemons/net.clamav.clamd.root-wheel



sudo nano /Library/LaunchDaemons/net.clamav.clamd.plist









        Disabled

        

        GroupName

        clamavadmin

        Label

        net.clamav.clamd

        ProgramArguments

        

                /opt/local/sbin/clamd

                -c

                /opt/local/etc/clamd.conf

        

        RunAtLoad

        

        UserName

        clamavadmin





sudo launchctl load -w /Library/LaunchDaemons/net.clamav.clamd.plist 2>/dev/null







# modify net.clamav.update.clamd.db.plist



sudo launchctl unload -w /Library/LaunchDaemons/net.clamav.update.clamd.db.plist 2>/dev/null

sudo cp -p /Library/LaunchDaemons/net.clamav.update.clamd.db.plist /Library/LaunchDaemons/net.clamav.update.clamd.db.plist.root-wheel



sudo nano /Library/LaunchDaemons/net.clamav.update.clamd.db.plist









        Disabled

        

        GroupName

        clamavadmin

        Label

        net.clamav.update.clamd.db

        ProgramArguments

        

                /private/var/clamavadmin/update_clamd_db.sh

        

        RunAtLoad

        

        StartInterval

        20000

        UserName

        clamavadmin







sudo launchctl load -w /Library/LaunchDaemons/net.clamav.update.clamd.db.plist 2>/dev/null







# watch clamd.log in a second Terminal window

open /bin/bash

sudo tail -n 50 -f /private/var/clamavadmin/log/clamd.log





# now restart clamd

if [[ -e "/private/var/clamavadmin/tmp/clamd" ]]; then sudo /bin/rm -f "/private/var/clamavadmin/tmp/clamd" ; fi

sudo /opt/local/sbin/clamd -c /opt/local/etc/clamd.conf





# test

(sleep 3; echo PING; sleep 3; echo exit) | sudo telnet -u /private/var/clamavadmin/tmp/clamd

echo PING | /opt/local/bin/socat - /private/var/clamavadmin/tmp/clamd    # requires: sudo port install socat

sudo find /private/var/clamavadmin \( -type f -or -type d -or -type s \) -print0 | xargs -0 sudo ls -ldG   # /private/var/clamavadmin/tmp/clamd