Commits on Jul 31, 2023

1. client: Export public API. …

   This patch, similar in spirit to canonical#238, introduces a new public API for
   extending the Pebble client. The basic idea behind this patch is the client mixin
   struct embedded in commands' structs no longer holds an instance of the
   Pebble-specific `client.Client` struct, but instead take a `ClientGetter` interface
   that implements a `Client()` method. `ClientGetter.Client()` always returns a
   Pebble-specific `client.Client` struct.
   
   For applications that indent to extend Pebble, this means that either the Pebble
   client or a new, application-specific client can be used. In the latter case,
   the application-specific client must implement the `ClientGetter` interface so
   that a Pebble-specific `client.Client` struct can always be derived by the
   facilities consuming the `ClientGetter` interface. The easiest way to implement
   this is to embed the Pebble client:
   
       type PebbleClient = client.Client
       type MyClient struct {
           *PebbleClient
       }
   
   Since the Pebble-specific `client.Client` is embedded, and the `ClientGetter`
   interface requires `Client()` to be implemented with a pointer receiver, the
   snippet above suffices to implement a client based off the Pebble-supplied one
   without much hassle, and that provides lower-level facilities for communicating
   with the daemon, such as `DoSync()`, `DoAsync()` and `DoAsyncFull()`.

   

   anpep committed Jul 31, 2023
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