all: sync with master; upd chlog

internal/confmigrate/v24.go

@@ -0,0 +1,50 @@
+package confmigrate
+
+// migrateTo24 performs the following changes:
+//
+//	# BEFORE:
+//	'schema_version': 23
+//	'log_file': ""
+//	'log_max_backups': 0
+//	'log_max_size': 100
+//	'log_max_age': 3
+//	'log_compress': false
+//	'log_localtime': false
+//	'verbose': false
+//	# …
+//
+//	# AFTER:
+//	'schema_version': 24
+//	'log':
+//	  'file': ""
+//	  'max_backups': 0
+//	  'max_size': 100
+//	  'max_age': 3
+//	  'compress': false
+//	  'local_time': false
+//	  'verbose': false
+//	# …
+func migrateTo24(diskConf yobj) (err error) {
+	diskConf["schema_version"] = 24
+
+	logObj := yobj{}
+	err = coalesceError(
+		moveVal[string](diskConf, logObj, "log_file", "file"),
+		moveVal[int](diskConf, logObj, "log_max_backups", "max_backups"),
+		moveVal[int](diskConf, logObj, "log_max_size", "max_size"),
+		moveVal[int](diskConf, logObj, "log_max_age", "max_age"),
+		moveVal[bool](diskConf, logObj, "log_compress", "compress"),
+		moveVal[bool](diskConf, logObj, "log_localtime", "local_time"),
+		moveVal[bool](diskConf, logObj, "verbose", "verbose"),
+	)
+	if err != nil {
+		// Don't wrap the error, because it's informative enough as is.
+		return err
+	}
+
+	if len(logObj) != 0 {
+		diskConf["log"] = logObj
+	}
+
+	return nil
+}