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Nano Sync

Continuous filter update delivery

A file based differential update system for filter lists.

WORK IN PROGRESS - DEVELOPERS ONLY

Usage

Install

npm install -g nano-sync

Command Line

nano-sync /path/to/filter.txt

Integration

"use strict";
 
const nsync = require("nano-sync");
nsync.ezPatch("filter.txt");

You need to commit ./nano-sync-data/config.json, although not other cache files in that directory, you should add the following line to .gitignore file:

nano-sync-data/*.txt

If you change your filter list very often, it is recommended to create only one to two patches per day.

Technical

Nano Sync will, by default, generate the following output structure:

filter.txt
filter-diff/
    meta.json
    checkpoint.txt
    1.patch
    2.patch
    3.patch
    4.patch

The structure of meta.json:

{
  "checkpoint": 35,
  "latest": 37
}

checkpoint denotes the version of the checkpoint, latest denotes the latest version.

In the above example, 1.patch then 2.patch need to be applied to checkpoint.txt to generate the latest filter.

3.patch and 4.patch are leftover patch files from last round.

This default mode is optimized for Git repository, you will get a spike in traffic on every checkpoint, but in return, generates the least amount of extra Git history.