cmd SCNvimReboot (reboot interpreter) (#253)

Author: elgiano

doc/SCNvim.txt

@@ -123,6 +123,7 @@ Command                   Description
 `SCNvimStart`               Start SuperCollider
 `SCNvimStop`                Stop SuperCollider
 `SCNvimRecompile`           Recompile SCClassLibrary
+`SCNvimReboot`              Reboot sclang interpreter
 `SCNvimGenerateAssets`      Generate syntax highlightning and snippets
 `SCNvimHelp` <subject>      Open HelpBrowser or window split for <subject>
 `SCNvimStatusLine`          Display server status in 'statusline' if configured.

lua/scnvim.lua

@@ -99,6 +99,11 @@ function scnvim.recompile()
   sclang.recompile()
 end
 
+--- Reboot sclang.
+function scnvim.reboot()
+  sclang.reboot()
+end
+
 --- Determine if a sclang process is active.
 ---@return True if sclang is running otherwise false.
 function scnvim.is_running()

lua/scnvim/commands.lua

@@ -17,6 +17,7 @@ return function()
   add_command('SCNvimStart', sclang.start, 'Start the sclang interpreter')
   add_command('SCNvimStop', sclang.stop, 'Stop the sclang interpreter')
   add_command('SCNvimRecompile', sclang.recompile, 'Recompile the sclang interpreter')
+  add_command('SCNvimReboot', sclang.reboot, 'Reboot sclang interpreter')
   add_command('SCNvimStatusLine', sclang.poll_server_status, 'Display the server status')
   add_command('SCNvimGenerateAssets', function()
     local on_done = function()

lua/scnvim/sclang.lua

@@ -223,7 +223,7 @@ function M.start()
 end
 
 --- Stop the sclang process.
-function M.stop()
+function M.stop(callback)
   if not M.is_running() then
     return
   end
@@ -235,15 +235,25 @@ function M.stop()
       local ret = M.proc:kill 'sigkill'
       if ret == 0 then
         timer:close()
+        if callback then
+          vim.schedule(callback)
+        end
         M.proc = nil
       end
     else
       -- process exited during timer loop
       timer:close()
+      if callback then
+        vim.schedule(callback)
+      end
     end
   end)
 end
 
+function M.reboot()
+  M.stop(M.start)
+end
+
 --- Recompile the class library.
 function M.recompile()
   if not M.is_running() then

test/spec/automated/commands_spec.lua

@@ -8,6 +8,7 @@ describe('commands', function()
       'SCNvimGenerateAssets',
       'SCNvimHelp',
       'SCNvimRecompile',
+      'SCNvimReboot',
       'SCNvimStart',
       'SCNvimStatusLine',
       'SCNvimStop',