From 710b9ed1c78484546376603c2874743dda201db8 Mon Sep 17 00:00:00 2001 From: sim Date: Tue, 20 Jul 2021 13:00:38 -0700 Subject: lsp(start_client): Allow passing custom workspaceFolders to the LSP (#15132) Some language servers *cough*rust-analyzer*cough* need an empty/custom workspaceFolders for certain usecases. For example, rust-analyzer needs an empty workspaceFolders table for standalone file support (See https://github.com/rust-analyzer/rust-analyzer/pull/8955). This can also be useful for other languages that need to commonly open a certain directory (like flutter or lua), which would help prevent spinning up a new language server altogether. In case no workspaceFolders are passed, we fallback to what we had before. --- runtime/lua/vim/lsp.lua | 17 +++++++++++++---- 1 file changed, 13 insertions(+), 4 deletions(-) diff --git a/runtime/lua/vim/lsp.lua b/runtime/lua/vim/lsp.lua index 75faf9bcc7..f5aefc8260 100644 --- a/runtime/lua/vim/lsp.lua +++ b/runtime/lua/vim/lsp.lua @@ -590,6 +590,10 @@ end --- as `initializationOptions`. See `initialize` in the LSP spec. --- --@param name (string, default=client-id) Name in log messages. +-- +--@param workspace_folders (table) List of workspace folders passed to the +--- language server. Defaults to root_dir if not set. See `workspaceFolders` in +--- the LSP spec --- --@param get_language_id function(bufnr, filetype) -> language ID as string. --- Defaults to the filetype. @@ -775,6 +779,14 @@ function lsp.start_client(config) off = 'off'; messages = 'messages'; verbose = 'verbose'; } local version = vim.version() + + if not config.workspace_folders then + config.workspace_folders = {{ + uri = vim.uri_from_fname(config.root_dir); + name = string.format("%s", config.root_dir); + }}; + end + local initialize_params = { -- The process Id of the parent process that started the server. Is null if -- the process has not been started by another process. If the parent @@ -815,10 +827,7 @@ function lsp.start_client(config) -- -- workspace folder in the user interface. -- name -- } - workspaceFolders = {{ - uri = vim.uri_from_fname(config.root_dir); - name = string.format("%s", config.root_dir); - }}; + workspaceFolders = config.workspace_folders, } if config.before_init then -- TODO(ashkan) handle errors here. -- cgit