blocktube-list-deduplicator.jshell

// Clear duplicated records
// Usage: jshell -v -R-Dlist=list.txt blocktube-list-deduplicator.jshell

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.util.LinkedHashMap;

String fileName = System.getProperty("list");
int count = 0;
var map = new LinkedHashMap<>();
try (var br = new BufferedReader(new FileReader(fileName))) {
    for (String line; (line = br.readLine()) != null; ) {
        try {
            String channelName;
            String channelId;

            if (line.startsWith("// Blocked")) {
                int start = line.indexOf("(") + 1;
                int end = line.indexOf(")");
                channelName = line.substring(start, end);
                channelId = br.readLine();
                map.put(channelId, channelName);
                br.readLine();
                count++;
            }
        } catch (Exception e) {
            System.out.println("Error " + e + " with line \n" + line);
        }
    }
}
System.out.println("Count of channels: " + count + ". After deduplicate: " + map.size());
var sb = new StringBuilder(
        "// BlockTube https://chrome.google.com/webstore/detail/blocktube/bbeaicapbccfllodepmimpkgecanonai")
sb.append("\n");

for (var entry : map.entrySet()) {
    sb.append("\n").append("// Blocked by context menu (").append(entry.getValue()).append(")");
    sb.append("\n").append(entry.getKey());
    sb.append("\n");
}

var deduplicatedFilename = "deduplicated-" + fileName;
var writer = new BufferedWriter(new FileWriter(deduplicatedFilename));
writer.write(sb.toString());
writer.close();
System.out.println("Created file: " + deduplicatedFilename);
/exit