Upgrading to MoinMoin 1.6

, Will Kahn-Greene | share this (mastodon)
Note: This is an old post in a blog with a lot of posts over a long span of time. The world has changed, technologies have changed, and I've changed. It's likely this is out of date, the code doesn't work, the ideas haven't aged well, or the ideas were terrible to begin with. Let me know if you think this is something that needs updating.

A couple of days ago, I did a dist-upgrade on my server which runs Debian. I'm not sure what version I had prior to the upgrade, but after the upgrade I'm at 1.6.2. The problem is that the wiki syntax is different, so my wiki data was mildly hosed. I ended up spending 45 minutes to an hour trying to figure out how to migrate the data.

The magic script is /usr/share/python-support/python-moinmoin/MoinMoin/script/moin.py. You need to run it like this:

$ ./moin.py --config-dir=/path/to/wikiconfig.py/dir/ migration data

The other problem I had is that I had no meta file in my data directory and so the moin.py script would die with a stack trace like this:

Traceback (most recent call last):
  File "./moin.py", line 24, in ?
    run()
  File "./moin.py", line 15, in run
    MoinScript().run(showtime=0)
  File "./../../MoinMoin/script/__init__.py", line 138, in run
    self.mainloop()
  File "./../../MoinMoin/script/__init__.py", line 251, in mainloop
    plugin_class(args[2:], self.options).run() # all starts again there
  File "./../../MoinMoin/script/__init__.py", line 138, in run
    self.mainloop()
  File "./../../MoinMoin/script/migration/data.py", line 44, in mainloop
    curr_rev = meta['data_format_revision']
  File "./../../MoinMoin/wikiutil.py", line 472, in __getitem__
    return dict.__getitem__(self, key)
KeyError: 'data_format_revision'

I assumed that I had some version of 1.5 previously and so I created a meta file with this in it:

data_format_revision: 01050800

After doing that, the moin.py script worked nicely and all my wiki data is in the correct syntax now.

Update:

4/26/2008 - Fixed some words to make the meta file creation step clearer.

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