[Tilesathome] Better update mechanism

[Matthias Julius]

Knut Arne Bjørndal <bob+osm at cakebox.net> writes:

> On Sun, Oct 26, 2008 at 02:08:51PM -0400, Matthias Julius wrote:
>> Knut Arne Bjørndal <bob+osm at cakebox.net> writes:
>> 
>> > I've recently seen some old bugs rear their heads long after they were
>> > fixed and the version date thing updated, so I think there are some
>> > ways in which clients can avoid updating.
>> 
>> What do you think those ways could be?
>> 
>> I would think svn is doing a pretty good job synchronising with the
>> repository.  I don't think it is likely that svn is skipping some
>> files.
>> 
>> What is much more likely is that users are tampering with either
>> version.txt or some source files.  In the first case the client might
>> never update itself and in the latter svn will try to keep the local
>> edits.  Svn will only fail if there is a conflict it can not resolve.
>
> I think it's much more likely the update mechanism isn't working than
> that users are sabotaging it. Adding --subversion /bin/true to the
> client command line makes it not mess up my checkout when developing.

I didn't mean that people are sabotaging their client installation,
but people might play with the code a little bit to work around bugs
or whatever.  We had reports from people reporting about perl
complaining about syntax errors resulting form the > or < inserted by
svn on merge conflicts.

I don't actually know what happens if svn fails (e.g. due to network
problems) during auto-update.  Maybe this can cause those problems.

Matthias