Quote from: watashi-kokoto on June 27, 2021, 06:59:20 AM

Hello, the comb downloader started to sync correctly, so I thought I would share it.

https://bitbucket.org/watashi564/combdownloader/src/master/

If possible, It would be great to have it moved over to github and make a release!
The usage is pretty simple, the user just runs combdownloader.exe and the community series combfullui.exe and any recent version of bitcoin core.
It will make 8 connections to the bitcoin core (this could perhaps be decreased)
Then it will start pulling blocks into the comb wallet.

There is a distinct possibility to use this in a "lite" mode, that is without having bitcoin core installed. Although then the user would need to
download over +100gb of data still, of which +100 mb would be retained, so I don't know what the benefit would be.

To use in lite mode perhaps the ip address in main.go could be made configurable. That way you can connect to any online bitcoin core in the bitcoin swarm.

EDIT: Important! please do not use this comb downloader just yet. There is an off-by-one error in the code, it syncs block 481824 into the slot for height 481825 etc...

Each block gets synced at the wrong height (1 block higher) The wallet appears to be working fine despite of this error, and you will not lose any funds.

Problem will manifest if the user switches to a correct syncing method, that will cause a loss of one block chain block.

If you've used this comb downloader please delete your commits folder, to recover from the problem.

Cool! How does it handle the comb client trying to pull commits over the RPC?

Also just confirming, but it can maintain an up-to-date commits file without hosting a local node if you plug in an IP of a trusted BTC node? I know some people on the telegram were saying it's a bit of an inconvenience to run a BTC full node just to use Haircomb, even if it's just because of the HD space it takes up. Setting it up so they don't need to, even if it DOES still take bandwidth to download the commits, would still probably be pretty attractive to them.