feat(lsp): apply changes to related files when a file is deleted

lua/yazi/event_handling.lua

@@ -1,5 +1,6 @@
 local utils = require('yazi.utils')
 local plenaryIterators = require('plenary.iterators')
+local lsp_delete = require('yazi.lsp.delete')
 
 local M = {}
 
@@ -24,6 +25,7 @@ function M.process_delete_event(event, remaining_events)
           break
         else
           vim.api.nvim_buf_delete(buffer.bufnr, { force = false })
+          lsp_delete.file_deleted(buffer.path.filename)
         end
       end
     end

lua/yazi/lsp/delete.lua

@@ -0,0 +1,57 @@
+local M = {}
+
+---@param path string
+local function notify_file_was_deleted(path)
+  -- https://microsoft.github.io/language-server-protocol/specifications/lsp/3.17/specification/#workspace_willDeleteFiles
+  local method = 'workspace/willDeleteFiles'
+
+  local clients = vim.lsp.get_clients({
+    method = method,
+    bufnr = vim.api.nvim_get_current_buf(),
+  })
+
+  for _, client in ipairs(clients) do
+    local resp = client.request_sync(method, {
+      files = {
+        {
+          uri = vim.uri_from_fname(path),
+        },
+      },
+    }, 1000, 0)
+
+    if resp and resp.result ~= nil then
+      vim.lsp.util.apply_workspace_edit(resp.result, client.offset_encoding)
+    end
+  end
+end
+
+---@param path string
+local function notify_delete_complete(path)
+  -- https://microsoft.github.io/language-server-protocol/specifications/lsp/3.17/specification/#workspace_didDeleteFiles
+  local method = 'workspace/didDeleteFiles'
+
+  local clients = vim.lsp.get_clients({
+    method = method,
+    bufnr = vim.api.nvim_get_current_buf(),
+  })
+
+  for _, client in ipairs(clients) do
+    -- NOTE: this returns nothing, so no need to do anything with the response
+    client.request_sync(method, {
+      files = {
+        {
+          uri = vim.uri_from_fname(path),
+        },
+      },
+    }, 1000, 0)
+  end
+end
+
+-- Send a notification to LSP servers, letting them know that yazi just deleted some files
+---@param path string
+function M.file_deleted(path)
+  notify_file_was_deleted(path)
+  notify_delete_complete(path)
+end
+
+return M

tests/yazi/lsp_delete_spec.lua

@@ -0,0 +1,14 @@
+local luassert = require('luassert')
+local lsp_delete = require('yazi.lsp.delete')
+
+describe('renaming files with LSP support', function()
+  -- It's pretty hard to test this as it would require a running LSP server.
+  -- There are some examples of this, e.g.
+  -- https://github.com/pmizio/typescript-tools.nvim/blob/master/tests/editor_spec.lua
+  --
+  -- Maybe more testing could be added later.
+  it('does nothing if no LSP is running', function()
+    local result = lsp_delete.file_deleted('test-file.txt')
+    luassert.is_nil(result)
+  end)
+end)