2011 - migrating moinmoin 1.7 -> 1.9+

This is a list of action for the next migration (lenny -> squeeze!) (completed).

TODO / Ideas

Actual wiki Migration steps


  1. Get the list of EditedSystemPages (they may need to be updated after the upgrade)

  2. Update the links, to use <<Anchor(foo)>> instead of #head-1234567, anchors auto-generated by moinmoin's <TableOfContents> feature.

Update blockquote starting with { {{{ } followed by #!foo

Drop { {{{#!plain } Introduced during moinmoin 1.7 migration :-(


The pages folder is quite large... make sure it's in the cache...

  1. for x in 1 2 3 4 5 6 7 8 9 ; do ls /srv/wiki.debian.org/var/moin/data/pages > /dev/null ; done &

And Meanwhile...

Turn the wiki read-only

  1. edit /srv/wiki.debian.org/etc/moin/wikiconfig.py and append:

        page_header1 = """<table width='100%'><tr><td style="background:#ffd0d0; text-align: center;padding:15pt">wiki.debian.org is in read-only mode for a maintenance operation. We will be back in 60 minutes. </td></tr></table>"""
        acl_rights_default = 'Known:read All:read'

Upgrade moinmoin

  1. aptitude install --without-recommends python-flup python-tz python-xapian python-xappy poppler-utils
    aptitude remove python-4suite-xml

Migrate moinmoin data (i.e update existing pages, for new syntax) :

#Estimated time for migration: ~~10minutes (continue the steps below).
/srv/wiki.debian.org/bin/moin --config-dir=/srv/wiki.debian.org/etc/moin/ --wiki-url=wiki.debian.org migration data

Update WSGI application name:

  1. Edit /srv/wiki.debian.org/bin/moin.wsgi:

    import sys
    sys.path.insert(0, '/srv/wiki.debian.org/etc/moin')
    # moinmoin application name has changed between v1.7 and v1.9
    #from MoinMoin.server.server_wsgi import moinmoinApp
    #application = moinmoinApp
    from MoinMoin.web.serving import make_application
    application = make_application(shared=True)

Publish (the new) theme using apache. Enable client-side caching.

  1. Enable content expiration in apache (execute a2enmod expires)

  2. Edit /srv/wiki.debian.org/etc/moin/wikiconfig.py, replace url_prefix = '/htdocs', with:

    url_prefix_local = '/htdocs'
    # Moin (>=1.6) use a prefix like '/moin_static160' to ensure file versioning
    # (en therefore avoid client file caching issue). So we stop forcing the prefix.
    #url_prefix_static = '/htdocs'
  3. Edit /srv/wiki.debian.org/etc/apache2/apache2.conf, add this alias

    # This alias needs to be updated on wiki upgrade, according to "release_short" in
    # /usr/share/pyshared/MoinMoin/version.py
      Alias /moin_static191    /usr/share/moin/htdocs/
      ExpiresActive On
      <Directory /usr/share/moin/htdocs>
        Order allow,deny
        Allow from all
        # Moinmoin use file-versioning, so we can cache agressively.
        ExpiresDefault "access plus 1 week"
      <Directory /srv/wiki.debian.org/usr/htdocs>
        Order allow,deny
        Allow from all
        ExpiresDefault "access plus 1 day"
  4. We can get rid of the old symlinks in /srv/wiki.debian.org/usr/htdocs/:

    rm /srv/wiki.debian.org/usr/htdocs/common
    rm /srv/wiki.debian.org/usr/htdocs/classic
    rm /srv/wiki.debian.org/usr/htdocs/modern
    rm /srv/wiki.debian.org/usr/htdocs/rightsidebar

Fix account & password pre-validation stuffs /srv/wiki.debian.org/etc/moin/wikiconfig.py ( <!> Ideally, we should keep ?DefaultConfig.password_checker):

diff --git a/etc/moin/wikiconfig.py b/etc/moin/wikiconfig.py
index 5dea400..f53a88b 100644
--- a/etc/moin/wikiconfig.py
+++ b/etc/moin/wikiconfig.py
@@ -50,11 +50,11 @@ class Config(DefaultConfig):
     # Spammers
     hosts_deny = local_secrets.hosts_deny
-    def password_checker(username, passwd):
+    def password_checker(request, username, passwd):
         result = local_secrets.password_checker(username, passwd)
         if result != None:
             return result
-        return DefaultConfig.password_checker(username, passwd)
+        return None
     password_checker = staticmethod(password_checker)

Get rid of some obsolete configuration statements. Edit /srv/wiki.debian.org/etc/moin/wikiconfig.py

Update wiki underlay:

  1. mv /srv/wiki.debian.org/var/moin/underlay/pages/ /srv/wiki.debian.org/var/moin/underlay/pages.pre-19

  2. cp -R /usr/share/moin/underlay/pages /srv/wiki.debian.org/var/moin/underlay/

  3. chown -R wiki:wikiadm /srv/wiki.debian.org/var/moin/underlay/pages

  4. chmod ug+wX /srv/wiki.debian.org/var/moin/underlay/pages

  5. find /srv/wiki.debian.org/var/moin/underlay/pages -type d | xargs chmod g+s

  6. A Wiki admin (with an account declared in wikiconfig.py's superuser=), And install the languages packs below (more on LanguageSetup):

Update Interwiki

  1. mv /srv/wiki.debian.org/var/moin/data/intermap.txt /srv/wiki.debian.org/var/moin/data/intermap.pre-19

  2. ln -s /usr/share/moin/data/intermap.txt  /srv/wiki.debian.org/var/moin/data/

Cleanup moinmoin's cache

  1. /srv/wiki.debian.org/bin/moin maint cleancache (Estimated time for migration: 5~10minutes)

Update (or Rebuild??) Xapian index:

  1. /srv/wiki.debian.org/bin/moin index build --mode=update

Post upgrade

2009 - migrating moinmoin 1.5 -> 1.7

The system hosting the wiki has been migrated to Lenny, so Moinmoin was upgraded (DebianWiki/MigratedToMoinmoin17), (see DebianWiki/History).

Remaining ideas/tasks to do:

2005 - migrating from wiki.debian.net

When Debian wiki became an official service in 2005, it was migrated from wiki.debian.net to wiki.debian.org (see DebianWiki/History).

Remaining ideas/tasks to do:

See also