This explains how to stay up to date with your sources using [mercurial](http://www.selenic.com/mercurial/) (a.k. hg).
The repo on ftp.fortunaty.net is used, which replicates corecode's (http://chlamydia.fs.ei.tum.de/hg/dragonfly-src) hourly.

Install mercurial 
    
    cd /usr/pkgsrc/devel/mercurial && bmake install


If you need only one source tree around 
    
    cd /usr
    hg clone http://ftp.fortunaty.net/DragonFly/dragonfly-src.hg src


Later you update with
    
    cd /usr/src && hg pull -u


If you need more than one, maybe for developement 
    
    hg clone -U http://ftp.fortunaty.net/DragonFly/dragonfly-src.hg /home/dsrc.hg
    hg clone /home/dsrc.hg /usr/src


Later you update your local master repo with
    
    cd /home/dsrc.hg
    hg pull


Then your slave trees
    
    cd /usr/src
    hg pull -u