http://svnbook.red-bean.com/en/1.5/svn.reposadmin.maint.html#svn.reposadmin.maint.filtering
* dump the whole repository
** svnadmin dump repos_backup > repos_backup_dumpfile
*** No problem, reports on dumping from revision 1 to x

* svndumpfilter --drop-empty-revs --renumber-revs include plan < repos_backup_dumpfile >plan_dumpfile
** Gives a file with the size 3890 bytes
Nothing extracted, because I wrote the wrong path

* svndumpfilter --drop-empty-revs --renumber-revs include trunk/plan < repos_backup_dumpfile > plan_dumpfile2
** gives a file with size 18049903. Contains the plan directory
* bzip2 the dumpfile
* copy it to my machine
* sudo svnadmin create plan
* svnadmin load --ignore-uuid plan < /home/boerre/klovn/plan_dumpfile2
** svnadmin: Fant ikke filen: Transaksjon «12-c», sti «trunk/plan»
     * legger til sti : trunk/plan ...
*** so stops on revision 12. Last Revision-number: in the file is 263 ...

New stab at producing a plan_dumpfile.
* svndumpfilter include trunk/plan < repos_backup_dumpfile > plan_dumpfile3
** Gives a file with size 21671787
* svnadmin load --ignore-uuid plan < /home/boerre/klovn/plan_dumpfile3
** svnadmin: Fant ikke filen: Transaksjon «5874-4j7», sti «trunk/plan»
     * legger til sti : trunk/plan
	 
The reason for the error is that the trunk directory isn't made in the beginning. Adding the following block to the plan_dumpfile2 below Revision-number: 1 fixed the error (output of diff):

33a34,41
> Node-path: trunk
> Node-action: add
> Node-kind: dir
> Prop-content-length: 10
> Content-length: 10
>
> PROPS-END
>

* svnadmin load --ignore-uuid plan < /home/boerre/klovn/plan_dumpfile2
** the command works perfectly

Now exclude trunk/plan 
* svndumpfilter --drop-empty-revs --renumber-revs exclude trunk/plan < repos_backup_dumpfile > everything_else_dumpfile
** this fails because revision 21676 contains this:
Revision-number: 21676     
Prop-content-length: 104   
Content-length: 104

K 7
svn:log
V 5
moved
K 10
svn:author
V 5
trond
K 8
svn:date
V 27
2008-10-29T22:53:08.218285Z
PROPS-END

Node-path: trunk/plan/tts
Node-action: delete

Trying to delete a path that doesn't exist

*** grep -n Revision-number: 21676: 281632738
*** grep -n Revision-number: 21677: 281632760
*** wc -l repos_backup_dumpfile: 360453542
*** head -281632737 repos_backup_dumpfile > head_repos_backup_dumpfile
*** tail -78820783 repos_backup_dumpfile > tail_repos_backup_dumpfile

New try:
* cat head_repos_backup_dumpfile tail_repos_backup_dumpfile | svndumpfilter --drop-empty-revs --renumber-revs exclude trunk/plan > everything_else_dumpfile
** fails the same place, revision 21677 contains this:
Node-path: trunk/tts
Node-kind: dir
Node-action: add
Node-copyfrom-rev: 21675
Node-copyfrom-path: trunk/plan/tts

Probably the two last lines are the culprit, when we exclude trunk/plan we can't copy from that place.

removing them this way:
* head -21 tail_repos_backup_dumpfile > tail1
* tail -78820760 tail_repos_backup_dumpfile > tail2

New try
* cat head_repos_backup_dumpfile tail1 tail2 | svndumpfilter --drop-empty-revs --renumber-revs exclude trunk/plan > everything_else_dumpfile
** fail with:
Revision 23604 committed as 23125.
svndumpfilter: Invalid copy source path '/trunk/plan/mt'

Revision 23605 contains this:
52484487:Revision-number: 23605                                                            
52484488-Prop-content-length: 135                                                          
52484489-Content-length: 135                                                               
52484490-
52484491-K 7
52484492-svn:log
52484493-V 35
52484494-Moved the mt from plan to reality.
52484495-
52484496-K 10
52484497-svn:author
52484498-V 5
52484499-trond
52484500-K 8
52484501-svn:date
52484502-V 27
52484503-2009-01-20T12:10:38.618571Z
52484504-PROPS-END
52484505-
52484506-Node-path: trunk/mt
52484507-Node-kind: dir
52484508-Node-action: add
52484509-Node-copyfrom-rev: 23598
52484510-Node-copyfrom-path: trunk/plan/mt
52484511-
52484512-

Lines 52484509 and 52484510 refers to a directory which doesn't exist, must be removed

* head -52484508 tail2 > tail3
tail3 now doesn't contain these lines

* wc -l tail2: 78820760
* tail -26336250 tail2 > tail4

new try
* cat head_repos_backup_dumpfile tail1 tail3 tail4 | svndumpfilter --drop-empty-revs --renumber-revs exclude trunk/plan > everything_else_dumpfile 2> everything.log

Now everything works

Now a more realistic scenario, pick out everything deemed secret from all paths, and dump it to private.dump

* svndumpfilter --drop-empty-revs --renumber-revs include branches/make-redo/plan/admin branches/make-redo/plan/art branches/make-redo/plan/barents branches/make-redo/plan/cat branches/make-redo/plan/cooperation branches/make-redo/plan/dict branches/make-redo/plan/digivariet branches/make-redo/plan/faoproof branches/make-redo/plan/grc branches/make-redo/plan/mt branches/make-redo/plan/ped branches/make-redo/plan/strat branches/make-redo/plan/t9 trunk/plan/admin trunk/plan/art trunk/plan/barents trunk/plan/cat trunk/plan/cooperation trunk/plan/dict trunk/plan/digivariet trunk/plan/faoproof trunk/plan/grc trunk/plan/ped trunk/plan/strat trunk/plan/studentwork trunk/plan/t9 branches/Public_Beta_release_1/gt/smj/polderland/phonrules-smj.txt branches/Public_Beta_release_1/gt/sme/polderland/phonrules-sme.txtbranches/make-redo/gt/smj/polderland/phonrules-smj.txt trunk/gt/smj/polderland/phonrules-smj.txt trunk/gt/sme/polderland/phonrules-sme.txt < repos_backup.dump > private.dump
** failed with: Revision 20226 skipped.
svndumpfilter: Invalid copy source path '/trunk/gt/doc/admin/applications/komsjdyrk.jspwiki'

Include this path, as it won't matter if we include it.

* svndumpfilter --drop-empty-revs --renumber-revs include branches/make-redo/plan/admin branches/make-redo/plan/art branches/make-redo/plan/barents branches/make-redo/plan/cat branches/make-redo/plan/cooperation branches/make-redo/plan/dict branches/make-redo/plan/digivariet branches/make-redo/plan/faoproof branches/make-redo/plan/grc branches/make-redo/plan/mt branches/make-redo/plan/ped branches/make-redo/plan/strat branches/make-redo/plan/t9 trunk/plan/admin trunk/plan/art trunk/plan/barents trunk/plan/cat trunk/plan/cooperation trunk/plan/dict trunk/plan/digivariet trunk/plan/faoproof trunk/plan/grc trunk/plan/ped trunk/plan/strat trunk/plan/studentwork trunk/plan/t9 branches/Public_Beta_release_1/gt/smj/polderland/phonrules-smj.txt branches/Public_Beta_release_1/gt/sme/polderland/phonrules-sme.txtbranches/make-redo/gt/smj/polderland/phonrules-smj.txt trunk/gt/smj/polderland/phonrules-smj.txt trunk/gt/sme/polderland/phonrules-sme.txt trunk/gt/doc/admin/applications/komsjdyrk.jspwiki < repos_backup.dump > private.dump
** This command worked

Then, exclude these very paths. Try the first command, with exclude instead of include, without the --drop-empty-revs --renumber-revs options. This is done in the hope that this will work as a drop-in replacement for the original repos.

* svndumpfilter exclude branches/make-redo/plan/admin branches/make-redo/plan/art branches/make-redo/plan/barents branches/make-redo/plan/cat branches/make-redo/plan/cooperation branches/make-redo/plan/dict branches/make-redo/plan/digivariet branches/make-redo/plan/faoproof branches/make-redo/plan/grc branches/make-redo/plan/mt branches/make-redo/plan/ped branches/make-redo/plan/strat branches/make-redo/plan/t9 trunk/plan/admin trunk/plan/art trunk/plan/barents trunk/plan/cat trunk/plan/cooperation trunk/plan/dict trunk/plan/digivariet trunk/plan/faoproof trunk/plan/grc trunk/plan/ped trunk/plan/strat trunk/plan/studentwork trunk/plan/t9 branches/Public_Beta_release_1/gt/smj/polderland/phonrules-smj.txt branches/Public_Beta_release_1/gt/sme/polderland/phonrules-sme.txtbranches/make-redo/gt/smj/polderland/phonrules-smj.txt trunk/gt/smj/polderland/phonrules-smj.txt trunk/gt/sme/polderland/phonrules-sme.txt < repos_backup.dump > public2.dump
** Worked without problems

Next steps 
* import the original repos from repos_backup.dump to /home/svn/repos
* sudo svnadmin create repos
* sudo svnadmin load --ignore-uuid repos < /home/boerre/klovn/repos_backup.dump
** worked without a hitch
* check out from that
** works
* delete the original /home/svn/repos, replace it by public.dump
* sudo svn rm -rf repos
* sudo svnadmin create repos
* sudo svnadmin load --ignore-uuid repos < /home/boerre/klovn/public2.dump
** 
* update from that (go into repos, do a svn update, hope everything works)
* import the private part to /home/svn/private
* sudo svnadmin create private
* sudo svnadmin load private < /home/boerre/klovn/private.dump
** funker ikke

The errors are caused by directories that don't exist. Added the following to the private.dump file, and then the load worked.

280a281,297
> Node-path: trunk
> Node-action: add
> Node-kind: dir
> Prop-content-length: 10
> Content-length: 10
> 
> PROPS-END
> 
> Node-path: trunk/plan
> Node-action: add
> Node-kind: dir
> Prop-content-length: 10
> Content-length: 10
> 
> PROPS-END
> 
> 
5181a5199,5244
> Node-path: trunk/gt
> Node-action: add
> Node-kind: dir
> Prop-content-length: 10
> Content-length: 10
> 
> PROPS-END
> 
> 
> Node-path: trunk/gt/sme
> Node-action: add
> Node-kind: dir
> Prop-content-length: 10
> Content-length: 10
> 
> PROPS-END
> 
> 
> Node-path: trunk/gt/smj
> Node-action: add
> Node-kind: dir
> Prop-content-length: 10
> Content-length: 10
> 
> PROPS-END
> 
> 
> 
> Node-path: trunk/gt/smj/polderland
> Node-action: add
> Node-kind: dir
> Prop-content-length: 10
> Content-length: 10
> 
> PROPS-END
> 
> 
> Node-path: trunk/gt/sme/polderland
> Node-action: add
> Node-kind: dir
> Prop-content-length: 10
> Content-length: 10
> 
> PROPS-END
> 
> 
25279a25343,25367
> 
> Node-path: trunk/gt/doc
> Node-action: add
> Node-kind: dir
> Prop-content-length: 10
> Content-length: 10
> 
> PROPS-END
> 
> Node-path: trunk/gt/doc/admin
> Node-action: add
> Node-kind: dir
> Prop-content-length: 10
> Content-length: 10
> 
> PROPS-END
> 
> Node-path: trunk/gt/doc/admin/applications
> Node-action: add
> Node-kind: dir
> Prop-content-length: 10
> Content-length: 10
> 
> PROPS-END
> 

3rd time:
private according to tronds newsposting on the 2nd of April
svndumpfilter --drop-empty-revs --renumber-revs include branches/Public_Beta_release_1/gt/smj/polderland/phonrules-smj.txt branches/Public_Beta_release_1/gt/sme/polderland/phonrules-sme.txtbranches/make-redo/gt/smj/polderland/phonrules-smj.txt trunk/gt/smj/polderland/phonrules-smj.txt trunk/gt/sme/polderland/phonrules-sme.txt branches/make-redo/plan/admin trunk/plan/admin branches/make-redo/plan/art trunk/plan/art branches/make-redo/plan/barents trunk/plan/barents branches/make-redo/plan/cat trunk/plan/cat branches/make-redo/plan/cooperation trunk/plan/cooperation branches/make-redo/plan/dict trunk/plan/dict branches/make-redo/plan/faoproof trunk/plan/faoproof branches/make-redo/plan/grc trunk/plan/grc branches/make-redo/plan/ped trunk/plan/ped branches/make-redo/plan/strat trunk/plan/strat branches/make-redo/plan/t9 trunk/plan/t9 /plan/ped trunk/plan/strat trunk/plan/studentwork trunk/plan/t9 branches/Public_Beta_release_1/gt/smj/polderland/phonrules-smj.txt branches/Public_Beta_release_1/gt/sme/polderland/phonrules-sme.txtbranches/make-redo/gt/smj/polderland/phonrules-smj.txt trunk/gt/smj/polderland/phonrules-smj.txt trunk/gt/sme/polderland/phonrules-sme.txt trunk/gt/doc/admin/applications/komsjdyrk.jspwiki < repos_backup.dump > private.dump

biggies:
svndumpfilter --drop-empty-revs --renumber-revs include branches/make-redo/gt/sme/corp branches/gt-UTF-8-conversion-branch/gt/sme/corp trunk/gt/sme/corp tags/Root-of-gt-UTF-8-conversion/gt/sme/corp tags/gt-before-utf-8-merge/gt/sme/corp Root_gt-UTF-8-conversion-branch/gt/sme/corp branches/make-redo/techdoc/proof/testing branches/make-redo/gt/doc/proof/testing trunk/techdoc/proof/testing branches/make-redo/tts trunk/tts trunk/plan/tts trunk/gt/doc/admin/applications/smespeech.bib trunk/gt/doc/admin/applications/smespeechpre.tex trunk/gt/doc/admin/applications/.cvsignore trunk/gt/doc/proof/testing < repos_backup.dump > biggies.dump

the rest, aka repos:
svndumpfilter --drop-empty-revs --renumber-revs exclude  branches/make-redo/techdoc/proof/testing branches/make-redo/gt/doc/proof/testing trunk/techdoc/proof/testingbranches/make-redo/tts trunk/tts trunk/plan/tts trunk/gt/doc/admin/applications/smespeech.bib trunk/gt/doc/admin/applications/smespeechpre.tex trunk/gt/doc/admin/applications/.cvsignore trunk/gt/doc/proof/testing branches/Public_Beta_release_1/gt/smj/polderland/phonrules-smj.txt branches/Public_Beta_release_1/gt/sme/polderland/phonrules-sme.txtbranches/make-redo/gt/smj/polderland/phonrules-smj.txt trunk/gt/smj/polderland/phonrules-smj.txt trunk/gt/sme/polderland/phonrules-sme.txt branches/make-redo/plan/admin trunk/plan/admin branches/make-redo/plan/art trunk/plan/art branches/make-redo/plan/barents trunk/plan/barents branches/make-redo/plan/cat trunk/plan/cat branches/make-redo/plan/cooperation trunk/plan/cooperation branches/make-redo/plan/dict trunk/plan/dict branches/make-redo/plan/faoproof trunk/plan/faoproof branches/make-redo/plan/grc trunk/plan/grc branches/make-redo/plan/ped trunk/plan/ped branches/make-redo/plan/strat trunk/plan/strat branches/make-redo/plan/t9 trunk/plan/t9 /plan/ped trunk/plan/strat trunk/plan/studentwork trunk/plan/t9 branches/Public_Beta_release_1/gt/smj/polderland/phonrules-smj.txt branches/Public_Beta_release_1/gt/sme/polderland/phonrules-sme.txtbranches/make-redo/gt/smj/polderland/phonrules-smj.txt trunk/gt/smj/polderland/phonrules-smj.txt trunk/gt/sme/polderland/phonrules-sme.txt trunk/gt/doc/admin/applications/komsjdyrk.jspwiki < repos_backup.dump > therest.dump


Make the private repo
sudo svnadmin create /usr/local/svn/private
* Add the lacking dirs.
* save them in private.add
* find where revision 2 starts: grep -n "Revision-number: 2$" private.dump
* find how many lines private.dump has: wc -l private.dump

cat private.head private.add private.tail | svnadmin load --ignore-uuid private

sudo svnadmin create /usr/local/svn/therest
sudo svnadmin load --ignore-uuid /usr/local/svn/therest < 


sudo svnadmin create /usr/local/svn/biggies
cat biggies.head biggies.add biggies.tail | svnadmin load --ignore-uuid biggies
* Add trunk/gt/sme using the method above
* Add trunk/gt/doc/proof
* Add trunk/gt/doc/admin
* Add trunk/gt/doc/admin/applications
* Add trunk/plan
* Add trunk/techdoc

The real deal:
* Comment out the original part
* Restart apache
Now the original svn is closed down
* svnadmin dump /usr/local/svn/repos > repos.dump
* svndumpfilter --drop-empty-revs --renumber-revs include branches/Public_Beta_release_1/gt/smj/polderland/phonrules-smj.txt branches/Public_Beta_release_1/gt/sme/polderland/phonrules-sme.txtbranches/make-redo/gt/smj/polderland/phonrules-smj.txt trunk/gt/smj/polderland/phonrules-smj.txt trunk/gt/sme/polderland/phonrules-sme.txt branches/make-redo/plan/admin trunk/plan/admin branches/make-redo/plan/art trunk/plan/art branches/make-redo/plan/barents trunk/plan/barents branches/make-redo/plan/cat trunk/plan/cat branches/make-redo/plan/cooperation trunk/plan/cooperation branches/make-redo/plan/dict trunk/plan/dict branches/make-redo/plan/faoproof trunk/plan/faoproof branches/make-redo/plan/grc trunk/plan/grc branches/make-redo/plan/ped trunk/plan/ped branches/make-redo/plan/strat trunk/plan/strat branches/make-redo/plan/t9 trunk/plan/t9 /plan/ped trunk/plan/strat trunk/plan/studentwork trunk/plan/t9 branches/Public_Beta_release_1/gt/smj/polderland/phonrules-smj.txt branches/Public_Beta_release_1/gt/sme/polderland/phonrules-sme.txtbranches/make-redo/gt/smj/polderland/phonrules-smj.txt trunk/gt/smj/polderland/phonrules-smj.txt trunk/gt/sme/polderland/phonrules-sme.txt trunk/gt/doc/admin/applications/komsjdyrk.jspwiki < repos.dump > private.dump
* svndumpfilter --drop-empty-revs --renumber-revs include branches/make-redo/gt/sme/corp branches/gt-UTF-8-conversion-branch/gt/sme/corp trunk/gt/sme/corp tags/Root-of-gt-UTF-8-conversion/gt/sme/corp tags/gt-before-utf-8-merge/gt/sme/corp Root_gt-UTF-8-conversion-branch/gt/sme/corp branches/make-redo/techdoc/proof branches/make-redo/gt/doc/proof trunk/techdoc/proof branches/make-redo/tts trunk/tts trunk/plan/tts trunk/gt/doc/admin/applications/smespeech.bib trunk/gt/doc/admin/applications/smespeechpre.tex trunk/gt/doc/admin/applications/.cvsignore trunk/gt/doc/proof < repos.dump > biggies.dump
* svndumpfilter --drop-empty-revs --renumber-revs exclude  trunk/gt/doc/proof branches/Public_Beta_release_1/gt/smj/polderland/phonrules-smj.txt branches/Public_Beta_release_1/gt/sme/polderland/phonrules-sme.txtbranches/make-redo/gt/smj/polderland/phonrules-smj.txt trunk/gt/smj/polderland/phonrules-smj.txt trunk/gt/sme/polderland/phonrules-sme.txt branches/make-redo/plan/admin trunk/plan/admin branches/make-redo/plan/art trunk/plan/art branches/make-redo/plan/barents trunk/plan/barents branches/make-redo/plan/cat trunk/plan/cat branches/make-redo/plan/cooperation trunk/plan/cooperation branches/make-redo/plan/dict trunk/plan/dict branches/make-redo/plan/faoproof trunk/plan/faoproof branches/make-redo/plan/grc trunk/plan/grc branches/make-redo/plan/ped trunk/plan/ped branches/make-redo/plan/strat trunk/plan/strat branches/make-redo/plan/t9 trunk/plan/t9 /plan/ped trunk/plan/strat trunk/plan/studentwork trunk/plan/t9 branches/Public_Beta_release_1/gt/smj/polderland/phonrules-smj.txt branches/Public_Beta_release_1/gt/sme/polderland/phonrules-sme.txtbranches/make-redo/gt/smj/polderland/phonrules-smj.txt trunk/gt/smj/polderland/phonrules-smj.txt trunk/gt/sme/polderland/phonrules-sme.txt trunk/gt/doc/admin/applications/komsjdyrk.jspwiki < repos.dump > therest.dump
* grep -n "Revision-number: 2$" private.dump
** 34:Revision-number: 2
* head -33 private.dump > private.head
* wc -l private.dump
* tail -738935 private.dump > private.tail
* cp ../test_repo/private.add .
* svnadmin create private
* cat private.head private.add private.tail | svnadmin load --ignore-uuid private
* grep -n "Revision-number: 2$" biggies.dump
** 34:Revision-number: 2
* head -33 biggies.dump > biggies.head
* wc -l biggies.dump
** 56640915 biggies.dump
* tail -56640882 biggies.dump > biggies.tail
* cp ../test_repo/biggies.add .
* svnadmin create biggies
* cat biggies.head biggies.add biggies.tail | svnadmin load --ignore-uuid biggies
* grep -n "Revision-number: 11342$"  therest.dump
** 133516992:Revision-number: 11342
* head -133516991 therest.dump > therest.head
* wc -l therest.dump
** 303963966 therest.dump
* tail -170446975 therest.dump > therest.tail
* svnadmin create therest
* cat therest.head therest.add therest.tail | svnadmin load --ignore-uuid therest

* sudo mv biggies /usr/local/svn/.
* sudo mv -v private /usr/local/svn/.

Copied the /etc/subversion/svn-auth-file to /etc/subversion/svn-auth-file-private
Removed every user except those belonging to the divvun and giellatekno projects.

Edited /etc/httpd/conf.d/subversion.conf
The private repository is authorized against /etc/subversion/svn-auth-file-private

* sudo chown -R apache:apache /usr/local/svn/biggies/
* sudo chown -R apache:apache /usr/local/svn/private/
* sudo chown -R apache:apache /usr/local/svn/therest/