clientcache commands now can output curl strings (#4042)

api/output_string.go

@@ -19,10 +19,18 @@ var LastOutputStringError *OutputStringError
 
 type OutputStringError struct {
 	*retryablehttp.Request
+	unixSocket       string
 	parsingError     error
 	parsedCurlString string
 }
 
+func NewOutputDomainSocketCurlStringError(req *retryablehttp.Request, socketAddr string) *OutputStringError {
+	return &OutputStringError{
+		Request:    req,
+		unixSocket: socketAddr,
+	}
+}
+
 func (d *OutputStringError) Error() string {
 	if d.parsedCurlString == "" {
 		d.parseRequest()
@@ -46,6 +54,9 @@ func (d *OutputStringError) parseRequest() {
 	if d.Request.Method != "GET" {
 		d.parsedCurlString = fmt.Sprintf("%s -X %s", d.parsedCurlString, d.Request.Method)
 	}
+	if d.unixSocket != "" {
+		d.parsedCurlString = fmt.Sprintf("%s --unix-socket %s", d.parsedCurlString, d.unixSocket)
+	}
 	for k, v := range d.Request.Header {
 		for _, h := range v {
 			if strings.ToLower(k) == "authorization" {