v3.3.0

• Added:
  • Add the function ErrorHandler to wrap the error handler to ignore ErrNoOpt and ErrFrozenOpt.
• Changed:
  • The default error handler will ignore ErrFrozenOpt by using ErrorHandler.
  • Don't call the observers of the option register when registering the options of []Opt(nil) or []Opt{}.

v3.2.0

• Added:
  • Add the alias for the option. So you can migrate the old option to the new in the same group without changing the old code.

v3.1.0

• Added:
  • Add the callback for DataSet.
  • Add the close notice CloseNotice.

v3.0.0

• Added:
  • Add the zookeeper source.
• Changed:
  • Refactor the source and the watcher to make it simpler.

v2.2.0

Changed:

• The json decoder supports the comment line starting with //.

v2.1.1

• Fixed:
  • Fix the continuation line error about the ini decoder.

v2.1.0

• Added:
  • Add the function ConvertOptsToCliFlags to convert option group to []cli.Flag. (github.com/urfave/cli)

v2.0.1

• Fixed: Fix the option name when registering the struct.

v2.0.0

Release the v2 stable.

• Added:
  • Add the toml and yaml decoders.
  • Convert map[interface{}]interface{} to map[string]interface{} automatically when loading map.
• Changed:
  • The cli source NewCliSource can ignore the default group and appoints the groups as a whole group.

v2.0.0-beta.5

• Added:
  • Add the support for the snapshot for Config, Snapshot().
  • Add the support for the backup file to load and backup the whole last snapshot of configuration data, LoadBackupFile().
  • Add ObserveRegister to watch the option register.
  • Add UpdateValue to support the key-value way.
  • Add LoadMap to support the load way of map.
  • Add LoadSourceWithoutWatcher only to load the source, not add the watcher.
  • Add FreezeOpt, UnfreezeOpt, OptIsFrozen, FreezeGroup, UnfreezeGroup, GroupIsFrozen to freeze and unfreeze the whole group or the option.
• Changed:
  • Close returns error no longer.
  • Change Observe from asynchronizedly to synchronizedly.
  • Rename IsSet and HasAndIsNotSet to OptIsSet and HasOptAndIsNotSet
  • The URL source support to customize the interval duration and the data format.