add river config

chezmoi/dot_config/river/logger.lua

@@ -0,0 +1,48 @@
+--- Logger interface
+---@class Logger
+---@field available_outputs table<string, file*> Available outputs to use in the logger
+---@field output file* The open file to write to
+local Logger = {
+  available_outputs = {
+    stdout = io.stdout
+  },
+}
+
+Logger.__index = Logger
+
+--- Create a new logger instance
+---@param output? file* io.stdout by default, [see Logger.available_outputs](lua://Logger.available_outputs) for possible values
+---@return Logger
+function Logger:new(output)
+  local obj = {
+    output = output or Logger.available_outputs.stdout
+  }
+
+  setmetatable(obj, self)
+  self.__index = self
+
+  self:open()
+
+  return obj
+end
+
+function Logger:open()
+  self:log("\n\n\n")
+  self:log("Opening logger...")
+end
+
+function Logger:close()
+  self:log("Closing logger...")
+  self:log("\n\n\n")
+  self.output:close()
+end
+
+--- Write data to ouput, it passes the arguments directly to file:write(...)
+---@param ... string|number the data to write
+function Logger:log(...)
+  self.output:write(arg)
+  self.output:write("\n")
+  self.output:flush()
+end
+
+return Logger