[OSM-dev] osm2pgsql can parse diffs now (for testing anyway)

[Dave Stubbs]

On Wed, Jul 9, 2008 at 5:09 PM, Andy Allan <gravitystorm at gmail.com> wrote:
> On Wed, Jul 9, 2008 at 4:43 PM, Martijn van Oosterhout
> <kleptog at gmail.com> wrote:
>> After a kind reminder this morning that this hadn't been done yet I
>> spent the day coding this. Basically it all works except for two
>> things:
>> - If a member of a relation changes, the relation isn't updated (can
>> be worked around)
>> - If a parking area changes, it doesn't delete the old parking node.
>>
>> Modulo plain bugs ofcourse!
>>
>> The first issue is a Simple Matter Of Programming, which I hope to get
>> around to soon. The second issue is thornier and I havn't got a good
>> solution for that yet. I have a possible ugly solution though, if it
>> comes down to it :)
>>
>> Usage is simple enough. first load your planet dump with --slim mode
>> (if you have the memory, give it a big cache):
>> osm2pgsql --slim my-planet-extract.osm.gz
>> After that you can use:
>> osm2pgsql --slim -a my-daily-diff.osc.gz
>> To apply the patch.
>> Don't forget the -a, or you'll blow away the database you've got.
>
> Is chaining multiple diffs supported? E.g.
>
> osm2pgsql --slim planet.osm.gz
> osm2pgsql --slim -a thursday.osc.gz
> osm2pgsql --slim -a friday.osc.gz
>
> ...etc?
>


Just had a quick gander at the code, and yes, that should work.

So awesome! Thanks Martijn.
I'll probably give it a spin later this evening.

Dave