feat: Add ability to clear notification history (#248)

Author: nullromo

README.md

@@ -165,6 +165,18 @@ You can get a list of past notifications with the history function
 require("notify").history()
 ```
 
+There is another command to clear the history.
+
+```vim
+:NotificationsClear
+```
+
+You can clear the notifications with the clear history function
+
+```lua
+require("notify").clear_history()
+```
+
 ## Configuration
 
 ### Setup

lua/notify/init.lua

@@ -23,6 +23,7 @@ function notify.setup(user_config)
     require("telescope").load_extension("notify")
   end
   vim.cmd([[command! Notifications :lua require("notify")._print_history()<CR>]])
+  vim.cmd([[command! NotificationsClear :lua require("notify").clear_history()<CR>]])
 end
 
 function notify._config()
@@ -110,6 +111,16 @@ end
 ---@class notify.HistoryOpts
 ---@field include_hidden boolean Include notifications hidden from history
 
+--- Clear records of all previous notifications
+---
+--- You can use the `:NotificationsClear` command to clear the log of previous notifications
+function notify.clear_history()
+  if not global_instance then
+    notify.setup()
+  end
+  return global_instance.clear_history()
+end
+
 --- Dismiss all notification windows currently displayed
 ---@param opts notify.DismissOpts
 function notify.dismiss(opts)

lua/notify/instance.lua

@@ -209,6 +209,10 @@ return function(user_config, inherit, global_config)
     return service and service:pending() or {}
   end
 
+  function instance.clear_history()
+    notifications = {}
+  end
+
   setmetatable(instance, {
     __call = function(_, m, l, o)
       if vim.in_fast_event() then