Add R language server (#226)

1 files changed, 30 insertions, 0 deletions

diff --git a/lua/nvim_lsp/r_language_server.lua b/lua/nvim_lsp/r_language_server.lua
new file mode 100644
index 00000000..91c619c2
--- /dev/null
+++ b/lua/nvim_lsp/r_language_server.lua
@@ -0,0 +1,30 @@
+local util = require 'nvim_lsp/util'
+local configs = require 'nvim_lsp/configs'
+
+configs.r_language_server = {
+  default_config = {
+    cmd = {"R", "--slave", "-e", "languageserver::run()"};
+    filetypes = {"r", "rmd"};
+    root_dir = function(fname)
+      return util.find_git_ancestor(fname) or vim.loop.os_homedir()
+    end;
+    log_level = vim.lsp.protocol.MessageType.Warning;
+  };
+  docs = {
+  package_json = "https://raw.githubusercontent.com/REditorSupport/vscode-r-lsp/master/package.json";
+    description = [[
+    [languageserver](https://github.com/REditorSupport/languageserver) is an
+    implementation of the Microsoft's Language Server Protocol for the R
+    language.
+
+    It is released on CRAN and can be easily installed by
+
+    ```R
+    install.packages("languageserver")
+    ```
+    ]];
+    default_config = {
+      root_dir = [[root_pattern(".git") or os_homedir]]
+    };
+  };
+}