add autoformatting for Ruby

README.md

@@ -24,6 +24,7 @@ Language Support:
   - Lua
   - Markdown
   - Python
+  - Ruby
   - SCSS
   - Terraform
   - YAML

configs/null-ls.lua

@@ -9,6 +9,7 @@ local opts = {
     null_ls.builtins.formatting.gofmt,
     null_ls.builtins.formatting.goimports,
     null_ls.builtins.formatting.prettierd,
+    null_ls.builtins.formatting.rubyfmt,
     null_ls.builtins.formatting.stylua,
     null_ls.builtins.formatting.terraform_fmt,
     null_ls.builtins.formatting.yamlfmt,

configs/overrides.lua

@@ -87,6 +87,7 @@ M.mason = {
     "debugpy",
     "delve",
     "gopls",
+    "ruby_fmt",
     "stylua",
     "terraform-ls",
     "lua-language-server",

plugins.lua

@@ -89,6 +89,7 @@ local plugins = {
       "lua",
       "markdown",
       "python",
+      "ruby",
       "scss",
       "sh",
       "terraform",