From 4cf28bf0e92127e2fdc636e411fff043bb0c6e0f Mon Sep 17 00:00:00 2001
From: Matt Joiner <anacrolix@gmail.com>
Date: Sat, 31 Jan 2015 01:53:42 +1100
Subject: [PATCH] Deduplicate iplist range descriptions, saves another 2.8MB
 heap

---
 client.go | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/client.go b/client.go
index 513e7871..cb66b565 100644
--- a/client.go
+++ b/client.go
@@ -345,6 +345,7 @@ func (cl *Client) setEnvBlocklist() (err error) {
 	}
 	defer f.Close()
 	var ranges []iplist.Range
+	uniqStrs := make(map[string]string)
 	scanner := bufio.NewScanner(f)
 	for scanner.Scan() {
 		r, ok, lineErr := iplist.ParseBlocklistP2PLine(scanner.Bytes())
@@ -355,6 +356,11 @@ func (cl *Client) setEnvBlocklist() (err error) {
 		if !ok {
 			continue
 		}
+		if s, ok := uniqStrs[r.Description]; ok {
+			r.Description = s
+		} else {
+			uniqStrs[r.Description] = r.Description
+		}
 		ranges = append(ranges, r)
 	}
 	err = scanner.Err()
-- 
2.48.1