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chore(lsp): clean up initialization process (#16369)

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* send vim.NIL instead of not sending workspaceFolders
* read fallback rootPath and rootUri from workspaceFolders
* update documentation
This commit is contained in:
Michael Lingelbach
2021-11-21 11:39:30 -05:00
committed by GitHub
parent 120a881630
commit a2749482d9
5 changed files with 65 additions and 53 deletions
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66
runtime/lua/vim/lsp.lua
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@@ -236,7 +236,6 @@ local function validate_client_config(config)
config = { config, 't' };
}
validate {
root_dir = { config.root_dir, optional_validator(is_dir), "directory" };
handlers = { config.handlers, "t", true };
capabilities = { config.capabilities, "t", true };
cmd_cwd = { config.cmd_cwd, optional_validator(is_dir), "directory" };
@@ -566,12 +565,10 @@ end
--
--- Starts and initializes a client with the given configuration.
---
--- Parameters `cmd` and `root_dir` are required.
--- Parameter `cmd` is required.
---
--- The following parameters describe fields in the {config} table.
---
---@param root_dir: (string) Directory where the LSP server will base
--- its rootUri on initialization.
---
---@param cmd: (required, string or list treated like |jobstart()|) Base command
--- that initiates the LSP client.
@@ -587,6 +584,11 @@ end
--- { "PRODUCTION=true"; "TEST=123"; PORT = 8080; HOST = "0.0.0.0"; }
--- </pre>
---
---@param workspace_folders (table) List of workspace folders passed to the
--- language server. For backwards compatibility rootUri and rootPath will be
--- derived from the first workspace folder in this list. See `workspaceFolders` in
--- the LSP spec.
---
---@param capabilities Map overriding the default capabilities defined by
--- |vim.lsp.protocol.make_client_capabilities()|, passed to the language
--- server on initialization. Hint: use make_client_capabilities() and modify
@@ -610,10 +612,6 @@ 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.
@@ -663,6 +661,11 @@ end
--- - exit_timeout (number, default 500): Milliseconds to wait for server to
-- exit cleanly after sending the 'shutdown' request before sending kill -15.
-- If set to false, nvim exits immediately after sending the 'shutdown' request to the server.
---
---@param root_dir string Directory where the LSP
--- server will base its workspaceFolders, rootUri, and rootPath
--- on initialization.
---
---@returns Client id. |vim.lsp.get_client_by_id()| Note: client may not be
--- fully initialized. Use `on_init` to do any actions once
--- the client has been initialized.
@@ -805,11 +808,24 @@ function lsp.start_client(config)
}
local version = vim.version()
if config.root_dir and not config.workspace_folders then
config.workspace_folders = {{
uri = vim.uri_from_fname(config.root_dir);
name = string.format("%s", config.root_dir);
}};
local workspace_folders
local root_uri
local root_path
if config.workspace_folders or config.root_dir then
if config.root_dir and not config.workspace_folders then
workspace_folders = {{
uri = vim.uri_from_fname(config.root_dir);
name = string.format("%s", config.root_dir);
}};
else
workspace_folders = config.workspace_folders
end
root_uri = workspace_folders[1].uri
root_path = vim.uri_to_fname(root_uri)
else
workspace_folders = vim.NIL
root_uri = vim.NIL
root_path = vim.NIL
end
local initialize_params = {
@@ -827,10 +843,15 @@ function lsp.start_client(config)
-- The rootPath of the workspace. Is null if no folder is open.
--
-- @deprecated in favour of rootUri.
rootPath = config.root_dir;
rootPath = root_path;
-- The rootUri of the workspace. Is null if no folder is open. If both
-- `rootPath` and `rootUri` are set `rootUri` wins.
rootUri = config.root_dir and vim.uri_from_fname(config.root_dir);
rootUri = root_uri;
-- The workspace folders configured in the client when the server starts.
-- This property is only available if the client supports workspace folders.
-- It can be `null` if the client supports workspace folders but none are
-- configured.
workspaceFolders = workspace_folders;
-- User provided initialization options.
initializationOptions = config.init_options;
-- The capabilities provided by the client (editor or tool)
@@ -838,21 +859,6 @@ function lsp.start_client(config)
-- The initial trace setting. If omitted trace is disabled ("off").
-- trace = "off" | "messages" | "verbose";
trace = valid_traces[config.trace] or 'off';
-- The workspace folders configured in the client when the server starts.
-- This property is only available if the client supports workspace folders.
-- It can be `null` if the client supports workspace folders but none are
-- configured.
--
-- Since 3.6.0
-- workspaceFolders?: WorkspaceFolder[] | null;
-- export interface WorkspaceFolder {
-- -- The associated URI for this workspace folder.
-- uri
-- -- The name of the workspace folder. Used to refer to this
-- -- workspace folder in the user interface.
-- name
-- }
workspaceFolders = config.workspace_folders,
}
if config.before_init then
-- TODO(ashkan) handle errors here.