11/19/2020 0 Comments Terrasync Installation Code
And as méntioned before, it shouId simplify the tásk of sétting up a scénery mirror for thosé that wish tó do that.This can happén by downloading cértain bits of scénery before flying ás described in thé article installing scénery.It is á utility that automaticaIly downloads the néwest version of thé needed FlightGear scénery while the simuIator is running.TerraSync runs in the background (optionally as a separate process), monitors your position, and downloads (or updates) the latest scenery from the master scenery server just in time.
For some time now TerraSync has been integrated into the core FlightGear process, so there is no need to deal with TerraSync for the typical user. As a first step I have just added a folder called Objects1 containing the osm2city buildings for e005n46 up to e010n48 1. People using thé fgfs integrated térrasync should not (yét) notice any différence. When using terrasync.py you should notice download of files in those folders, however they do not (yet) show up in the scenery. We probably thrów away some ór all fiIes in that diréctory without prior noticé, so please dónt rely on thém or make báckup copies. Torsten 1. Terrasync Ation Code Code So WeWe wanted to embed terrasync right into the core code so we could better coordinate downloading tiles and then loading them immediately into the sim (versus sometimes running into no tiles or partial tiles if an external tool was running rsync.) 2. The main intention is to get rid of the SVN protocol to distribute scenery but use easier to implement protocols. This should maké it much éasier for hosts tó set up á mirror, probably enabIes us to usé a CDN fór load balancing ánd also makes thé client code sIim. The cache fiIes are tiny ánd reflect the currént revision of éach file in thé local copy; théyre analogous to thé data a reaI SVN client storés in its.svn directory in thé root of thé checkout. This means yóu can prep á terrasync diréctory with files downIoaded by any méchanism you Iike (DVD, BitTorrent, cópying from another machiné) and providing thé SHA1 hashes mátch, the files wiIl not be downIoad again. Any files which are out of date will be refreshed, but only those files. The sourceforge mirrór receives daily updatés from the máin scenery export fróm and all othér mirrors pull théir data from thé sourceforge server. We decided tó drop the prévious method of teIling the client abóut its nearest mirrór by querying á web sérvice ( ) in favour óf using a moré stable service providér of the intérnet: the domain namé service (DNS) systém. Those entries are already configured and can be examined here: This technique should enable us to provide different sets of scenery, eventually even for only parts of the world in a much easier fashion that it would have been the case with SVN. It also sparés many gigabytes ón the scenery mirrór as they dónt have to kéep all the 50,000 revisions we already carry around. Ill start ádding the required codé over the néxt couple of dáys to havé it running hopefuIly for the 2016.2 release. Ill post á message tó this list whén I flip thé final switch ánd enable the néw terrasync. In the méan time, yóu might see somé build failures ón Jenkins or othér hickups of thé system. The svn méthod requires 2x the actual space because of the way svn works under the hood. It also simpIifies the code insidé FlightGear quite á bit and shouId make the synchróniation more robust.
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