From da8414b71a226ebdd055a8f88f5acb15c7771797 Mon Sep 17 00:00:00 2001
From: jacquarg <guillaume.jacquart@hoodbrains.com>
Date: Mon, 5 Sep 2022 09:08:41 +0200
Subject: [PATCH] 5710-Update trackers list only when it has changes.

---
 build_list.js | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/build_list.js b/build_list.js
index d1fb1cfa..6b986608 100644
--- a/build_list.js
+++ b/build_list.js
@@ -54,6 +54,11 @@ fetch(adawayUri)
     hostnames = createdLevel2Trackers(trackers, hostnames)
     console.log("Trackers list finished")
 })
+.then(toto => {
+    if (listHasNoChanges()) {
+        throw "No changes in trackers, abort updating."
+    }
+})
 .then(toto => {
     return printTrackers()
 })
@@ -147,6 +152,14 @@ function toLevel2Domain(hostname) {
     }
 }
 
+
+function listHasNoChanges() {
+    // Compare actual list with the builded one (without the createdAt field!)
+    const oldTrackers = require("./" + outputFile).trackers
+    return JSON.stringify(trackers) == JSON.stringify(oldTrackers)
+}
+
+
 function printTrackers() {    
     return JSON.stringify({
         trackers: trackers,
@@ -154,6 +167,8 @@ function printTrackers() {
     })
 }
 
+
+
 function saveTrackersFile(trackersJson) {
     fs.writeFileSync(outputFile, trackersJson)
 }
-- 
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