Refactor: refactor golang flavor

.gitignore

@@ -20,10 +20,8 @@ gradle-app.setting
 *.iml
 /.idea/*
 !/.idea/codeStyles
-/core/src/foss/go/.idea/*
-!/core/src/foss/go/.idea/codeStyles
-/core/src/premium/go/.idea/*
-!/core/src/premium/go/.idea/codeStyles
+/core/src/main/golang/.idea/*
+!/core/src/main/golang/.idea/codeStyles
 
 # KeyStore
 *.keystore

.gitmodules

 [submodule "clash-foss"]
-	path = core/src/foss/go/clash
+	path = core/src/main/golang/core/foss
+	url = https://github.com/Kr328/clash.git
+[submodule "clash-premium"]
+	path = core/src/main/golang/core/premium
 	url = https://github.com/Kr328/clash.git

core/build.gradle.kts

@@ -18,13 +18,15 @@ val geoipOutput = buildDir.resolve("intermediates/golang_blob")
 golang {
     sourceSets {
         create("foss") {
-            srcDir.set(file("src/foss/go"))
+            tags.set(listOf("foss"))
         }
         create("premium") {
-            srcDir.set(file("src/premium/go"))
+            tags.set(listOf("premium"))
+            moduleFile.set("go.premium.mod")
         }
         all {
             fileName.set("libclash.so")
+            srcDir.set(file("src/main/golang"))
         }
     }
 }