Issue 3673 - Merge closely matching rules

abp2blocklist.js

Index: abp2blocklist.js
===================================================================
--- a/abp2blocklist.js
+++ b/abp2blocklist.js
@@ -17,33 +17,34 @@
 
 "use strict";
 
 let readline = require("readline");
 let Filter = require("filterClasses").Filter;
 let ContentBlockerList = require("./lib/abp2blocklist.js").ContentBlockerList;
 
 var rl = readline.createInterface({input: process.stdin, terminal: false});
-var blockerList = new ContentBlockerList();
+var blockerList = new ContentBlockerList({merge: "all"});
 
 rl.on("line", line =>
 {
   if (/^\s*[^\[\s]/.test(line))
     blockerList.addFilter(Filter.fromText(Filter.normalize(line)));
 });
 
 rl.on("close", () =>
 {
-  let rules = blockerList.generateRules();
-
-  // If the rule set is too huge, JSON.stringify throws
-  // "RangeError: Invalid string length" on Node.js. As a workaround, print
-  // each rule individually.
-  console.log("[");
-  if (rules.length > 0)
+  blockerList.generateRules().then(rules =>
   {
-    let stringifyRule = rule => JSON.stringify(rule, null, "\t");
-    for (let i = 0; i < rules.length - 1; i++)
-      console.log(stringifyRule(rules[i]) + ",");
-    console.log(stringifyRule(rules[rules.length - 1]));
-  }
-  console.log("]");
+    // If the rule set is too huge, JSON.stringify throws
+    // "RangeError: Invalid string length" on Node.js. As a workaround, print
+    // each rule individually.
+    console.log("[");
+    if (rules.length > 0)
+    {
+      let stringifyRule = rule => JSON.stringify(rule, null, "\t");
+      for (let i = 0; i < rules.length - 1; i++)
+        console.log(stringifyRule(rules[i]) + ",");
+      console.log(stringifyRule(rules[rules.length - 1]));
+    }
+    console.log("]");
+  });
 });