[mirror config] extra rsync options (#107)

* support "rsync_options" array in config

* add test for new options

* fix tests

worker/provider.go

@@ -126,19 +126,20 @@ func newMirrorProvider(mirror mirrorConfig, cfg *Config) mirrorProvider {
 		provider = p
 	case provRsync:
 		rc := rsyncConfig{
-			name:        mirror.Name,
-			upstreamURL: mirror.Upstream,
-			rsyncCmd:    mirror.Command,
-			username:    mirror.Username,
-			password:    mirror.Password,
-			excludeFile: mirror.ExcludeFile,
-			workingDir:  mirrorDir,
-			logDir:      logDir,
-			logFile:     filepath.Join(logDir, "latest.log"),
-			useIPv6:     mirror.UseIPv6,
-			useIPv4:     mirror.UseIPv4,
-			interval:    time.Duration(mirror.Interval) * time.Minute,
-			retry:       mirror.Retry,
+			name:         mirror.Name,
+			upstreamURL:  mirror.Upstream,
+			rsyncCmd:     mirror.Command,
+			username:     mirror.Username,
+			password:     mirror.Password,
+			excludeFile:  mirror.ExcludeFile,
+			extraOptions: mirror.RsyncOptions,
+			workingDir:   mirrorDir,
+			logDir:       logDir,
+			logFile:      filepath.Join(logDir, "latest.log"),
+			useIPv6:      mirror.UseIPv6,
+			useIPv4:      mirror.UseIPv4,
+			interval:     time.Duration(mirror.Interval) * time.Minute,
+			retry:        mirror.Retry,
 		}
 		p, err := newRsyncProvider(rc)
 		if err != nil {
@@ -155,6 +156,7 @@ func newMirrorProvider(mirror mirrorConfig, cfg *Config) mirrorProvider {
 			username:      mirror.Username,
 			password:      mirror.Password,
 			excludeFile:   mirror.ExcludeFile,
+			extraOptions:  mirror.RsyncOptions,
 			workingDir:    mirrorDir,
 			logDir:        logDir,
 			logFile:       filepath.Join(logDir, "latest.log"),