feat: add proxy name replacement functionality for override (#1481)

* feat: add proxy name replacement functionality for override

* style: modify `override schema` info and provider parse error message

---------

Co-authored-by: chun <pujichun@outlook.com>

adapter/provider/parser.go

@@ -26,6 +26,13 @@ type healthCheckSchema struct {
 	ExpectedStatus string `provider:"expected-status,omitempty"`
 }
 
+type OverrideProxyNameSchema struct {
+	// matching expression for regex replacement
+	Pattern string `provider:"pattern"`
+	// the new content after regex matching
+	Target string `provider:"target"`
+}
+
 type OverrideSchema struct {
 	TFO              *bool   `provider:"tfo,omitempty"`
 	MPTcp            *bool   `provider:"mptcp,omitempty"`
@@ -40,6 +47,8 @@ type OverrideSchema struct {
 	IPVersion        *string `provider:"ip-version,omitempty"`
 	AdditionalPrefix *string `provider:"additional-prefix,omitempty"`
 	AdditionalSuffix *string `provider:"additional-suffix,omitempty"`
+
+	ProxyName []OverrideProxyNameSchema `provider:"proxy-name,omitempty"`
 }
 
 type proxyProviderSchema struct {

adapter/provider/provider.go

@@ -403,6 +403,24 @@ func proxiesParseAndFilter(filter string, excludeFilter string, excludeTypeArray
 					case "additional-suffix":
 						name := mapping["name"].(string)
 						mapping["name"] = name + *field.Interface().(*string)
+					case "proxy-name":
+						exprList, ok := field.Interface().([]OverrideProxyNameSchema)
+						if !ok {
+							return nil, fmt.Errorf("can't parse proxy-provider override proxy-name, please see the docs example config")
+						}
+						// Iterate through all naming replacement rules and perform the replacements.
+						for _, expr := range exprList {
+							name := mapping["name"].(string)
+							nameReg, err := regexp2.Compile(expr.Pattern, regexp2.None)
+							if err != nil {
+								return nil, fmt.Errorf("parse proxy name regular expression %q error: %w", expr.Pattern, err)
+							}
+							newName, err := nameReg.Replace(name, expr.Target, 0, -1)
+							if err != nil {
+								return nil, fmt.Errorf("proxy name replace error: %w", err)
+							}
+							mapping["name"] = newName
+						}
 					default:
 						mapping[fieldName] = field.Elem().Interface()
 					}

docs/config.yaml

@@ -929,6 +929,13 @@ proxy-providers:
       # ip-version: ipv4-prefer
       # additional-prefix: "[provider1]"
       # additional-suffix: "test"
+      # # 名字替换，支持正则表达式
+      # proxy-name:
+      #   - pattern: "test"
+      #     target: "TEST"
+      #   - pattern: "IPLC-(.*?)倍"
+      #     target: "iplc x $1"
+
   test:
     type: file
     path: /test.yaml