feat: add regal (#3071)

1 files changed, 28 insertions, 0 deletions

diff --git a/lua/lspconfig/server_configurations/regal.lua b/lua/lspconfig/server_configurations/regal.lua
new file mode 100644
index 00000000..24ec0928
--- /dev/null
+++ b/lua/lspconfig/server_configurations/regal.lua
@@ -0,0 +1,28 @@
+local util = require 'lspconfig.util'
+
+return {
+  default_config = {
+    cmd = { 'regal', 'language-server' },
+    filetypes = { 'rego' },
+    root_dir = function(fname)
+      return util.root_pattern '*.rego'(fname) or util.find_git_ancestor(fname)
+    end,
+    single_file_support = true,
+  },
+  docs = {
+    description = [[
+https://github.com/StyraInc/regal
+
+A linter for Rego, with support for running as an LSP server.
+
+`regal` can be installed by running:
+```sh
+go install github.com/StyraInc/regal@latest
+```
+    ]],
+    default_config = {
+      root_dir = [[root_pattern("*.rego", ".git")]],
+      single_file_support = true,
+    },
+  },
+}