Add support for ELixir LS (#149)

README.md

@@ -317,7 +317,7 @@ local servers = {
   "jedi_language_server", "jdtls", "sumneko_lua", "vimls", "html", "jsonls", "solargraph", "cssls",
   "yamlls", "clangd", "ccls", "sqls", "denols", "graphql", "dartls", "dotls",
   "kotlin_language_server", "nimls", "intelephense", "vuels", "phpactor", "omnisharp",
-  "r_language_server", "rust_analyzer", "terraformls", "svelte", "texlab", "clojure_lsp"
+  "r_language_server", "rust_analyzer", "terraformls", "svelte", "texlab", "clojure_lsp", "elixirls"
 }
 
 ```
@@ -759,4 +759,5 @@ end
 - Check `LspInfo` and treesitter status with `checkhealth`
 - Turn on log and attach the log to your issue if possible you can remove any personal/company info in the log
 - Submit Issue with minium vimrc. Please check playground/init.lua as a vimrc template. !!!Please DONOT use a packer vimrc
-that installs everything to default folder!!! Also check this repo [navigator bug report](https://github.com/fky2015/navigator.nvim-bug-report)
+
+  that installs everything to default folder!!! Also check this repo [navigator bug report](https://github.com/fky2015/navigator.nvim-bug-report)

lua/navigator/lspclient/clients.lua

@@ -111,6 +111,22 @@ local setups = {
     cmd = { 'clojure-lsp' },
   },
 
+  elixirls = {
+    on_attach = on_attach,
+    filetypes = { 'elixir', 'eelixir'},
+    cmd = {'elixir-ls'},
+    message_level = vim.lsp.protocol.MessageType.error,
+    settings = {
+      elixirLS = {
+        dialyzerEnabled = true, fetchDeps = false
+      }
+    },
+    root_dir = function(fname)
+      return util.root_pattern('mix.exs', '.git')(fname)
+        or util.path.dirname(fname)
+    end,
+  },
+
   gopls = {
     on_attach = on_attach,
     -- capabilities = cap,
@@ -317,6 +333,7 @@ local servers = {
   'svelte',
   'texlab',
   'clojure_lsp',
+  'elixirls'
 }
 
 local lsp_installer_servers = {}