From 1d784231b09597d6bff17689c0149fe31bc18cb7 Mon Sep 17 00:00:00 2001
From: wwqgtxx <wwqgtxx@gmail.com>
Date: Wed, 9 Nov 2022 08:41:30 +0800
Subject: [PATCH] fix: exclude-filter not work when filter is empty

---
 adapter/outboundgroup/groupbase.go | 69 ++++++++++++++----------------
 1 file changed, 32 insertions(+), 37 deletions(-)

diff --git a/adapter/outboundgroup/groupbase.go b/adapter/outboundgroup/groupbase.go
index 8dd57861..426a1282 100644
--- a/adapter/outboundgroup/groupbase.go
+++ b/adapter/outboundgroup/groupbase.go
@@ -71,59 +71,54 @@ func (gb *GroupBase) Touch() {
 }
 
 func (gb *GroupBase) GetProxies(touch bool) []C.Proxy {
+	var proxies []C.Proxy
 	if len(gb.filterRegs) == 0 {
-		var proxies []C.Proxy
 		for _, pd := range gb.providers {
 			if touch {
 				pd.Touch()
 			}
 			proxies = append(proxies, pd.Proxies()...)
 		}
-		if len(proxies) == 0 {
-			return append(proxies, tunnel.Proxies()["COMPATIBLE"])
-		}
-		return proxies
-	}
+	} else {
+		for i, pd := range gb.providers {
+			if touch {
+				pd.Touch()
+			}
 
-	for i, pd := range gb.providers {
-		if touch {
-			pd.Touch()
-		}
+			if pd.VehicleType() == types.Compatible {
+				gb.versions[i].Store(pd.Version())
+				gb.proxies[i] = pd.Proxies()
+				continue
+			}
 
-		if pd.VehicleType() == types.Compatible {
-			gb.versions[i].Store(pd.Version())
-			gb.proxies[i] = pd.Proxies()
-			continue
-		}
+			version := gb.versions[i].Load()
+			if version != pd.Version() && gb.versions[i].CompareAndSwap(version, pd.Version()) {
+				var (
+					proxies    []C.Proxy
+					newProxies []C.Proxy
+				)
 
-		version := gb.versions[i].Load()
-		if version != pd.Version() && gb.versions[i].CompareAndSwap(version, pd.Version()) {
-			var (
-				proxies    []C.Proxy
-				newProxies []C.Proxy
-			)
-
-			proxies = pd.Proxies()
-			proxiesSet := map[string]struct{}{}
-			for _, filterReg := range gb.filterRegs {
-				for _, p := range proxies {
-					name := p.Name()
-					if mat, _ := filterReg.FindStringMatch(name); mat != nil {
-						if _, ok := proxiesSet[name]; !ok {
-							proxiesSet[name] = struct{}{}
-							newProxies = append(newProxies, p)
+				proxies = pd.Proxies()
+				proxiesSet := map[string]struct{}{}
+				for _, filterReg := range gb.filterRegs {
+					for _, p := range proxies {
+						name := p.Name()
+						if mat, _ := filterReg.FindStringMatch(name); mat != nil {
+							if _, ok := proxiesSet[name]; !ok {
+								proxiesSet[name] = struct{}{}
+								newProxies = append(newProxies, p)
+							}
 						}
 					}
 				}
+
+				gb.proxies[i] = newProxies
 			}
-
-			gb.proxies[i] = newProxies
 		}
-	}
 
-	var proxies []C.Proxy
-	for _, p := range gb.proxies {
-		proxies = append(proxies, p...)
+		for _, p := range gb.proxies {
+			proxies = append(proxies, p...)
+		}
 	}
 
 	if len(proxies) == 0 {