refactor: rename "server_configurations" => "configs" #3330

Problem:
The name `server_configurations` is extremely verbose and irritatingly
formal and dogmatic. This overlong name is a constant nuisance when
reading, writing, and coding.

It's also not even correct: these configurations are just as much
"client" configurations as they are "server" configurations.

Solution:
- Rename to a shorter name.
- Leave placeholder files for any old URLs that link to the old
  location.

1 files changed, 28 insertions, 0 deletions

diff --git a/lua/lspconfig/configs/r_language_server.lua b/lua/lspconfig/configs/r_language_server.lua
new file mode 100644
index 00000000..bd315390
--- /dev/null
+++ b/lua/lspconfig/configs/r_language_server.lua
@@ -0,0 +1,28 @@
+local util = require 'lspconfig.util'
+
+return {
+  default_config = {
+    cmd = { 'R', '--no-echo', '-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 = {
+    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]],
+    },
+  },
+}