[Monotone-devel] Re: address@hidden: data exchange between archives

[graydon hoare]

Gerhard Schuck wrote:

> Sorry for sending this to you directly. I tried to send it to the 
> monotone mailig list, but it never showed up there.

no problem, the developer list appears to be broken (well, lagging by 
3-4 days) for the past week. no explanation why. I'll cc: this back 
there just in case it comes to life again.

> Now my question: How do I change data between archives? More
> precicely, how do I transport a) one certain status of a branch (as
> described in a manifest, e.g. the head) or b) a whole branch (from
> initial import to head(s) including all changelogs) from one archive to
> another on the same computer. Let's say from 
> /home/gs/monotone/archive1.db to /home/gs/monotone/archive2.db. With tla 
> I think at least a) is done with tagging or star-merge.

well, there's not a good way for monotone to do (a) alone right now, but 
since it's subsumed in case (b) perhaps that'll be enough. you probably 
want to do a netsync, just between the two databases locally.

suppose your branch is called jp.ne.parkcity.geschu, then you would do 
something like this:


  $ monotone --db=archive1.db serve localhost jp.ne.parkcity.geschu &
  $ monotone --db=archive2.db sync localhost jp.ne.parkcity.geschu
  $ kill -QUIT %1


that's the general formula for netsync. the only tricky part is that you 
need to tell the server to accept reads and writes from the client 
(since it could potentially be serving to the whole internet otherwise). 
so, assuming your RSA keypair is called address@hidden, you need 
to put something like this in your ~/.monotonerc:


function get_netsync_read_permitted(collection, identity)
        return (identity == "address@hidden")
end

function get_netsync_write_permitted(collection, identity)
        return (identity == "address@hidden")
end


hope that helps. the netsync documentation was sort of intentionally 
obscure to avoid turning too many newcomers onto it before it had 
stabilized; it'll be elaborated a bit in the next release.

-graydon