feat(server): handle working dir change

This should fix #246

Author: sudo-tee

lua/opencode/opencode_server.lua

@@ -34,7 +34,6 @@ end
 --- Create a new ServerJob instance
 --- @return OpencodeServer
 function OpencodeServer.new()
-  local log = require('opencode.log')
   ensure_vim_leave_autocmd()
 
   return setmetatable({

lua/opencode/ui/autocmds.lua

@@ -1,3 +1,4 @@
+local Promise = require('opencode.promise')
 local input_window = require('opencode.ui.input_window')
 local output_window = require('opencode.ui.output_window')
 local M = {}
@@ -48,6 +49,29 @@ function M.setup_autocmds(windows)
     end,
   })
 
+  vim.api.nvim_create_autocmd('DirChanged', {
+    callback = Promise.async(function(event)
+      local log = require('opencode.log')
+      local state = require('opencode.state')
+      local server_job = require('opencode.server_job')
+      local session = require('opencode.session')
+      local core = require('opencode.core')
+
+      if state.opencode_server then
+        vim.notify('Directory changed, restarting Opencode server...', vim.log.levels.INFO)
+        log.info('Shutting down Opencode server due to directory change...')
+        state.opencode_server:shutdown():await()
+        server_job.ensure_server():await()
+        state.active_session = nil
+        vim.notify('Loading last session for new working dir', vim.log.levels.INFO)
+        state.active_session = session.get_last_workspace_session():await()
+        if not state.active_session then
+          state.active_session = core.create_new_session():await()
+        end
+      end
+    end),
+  })
+
   if require('opencode.config').ui.position == 'current' then
     vim.api.nvim_create_autocmd('BufEnter', {
       group = group,