lsp: use installed rust-analyzer instead of Mason

lua/lsp.lua

@@ -77,7 +77,7 @@ local servers = {
   clangd = {},
   -- gopls = {},
   pyright = {},
-  rust_analyzer = {},
+  -- rust_analyzer = {},
   tsserver = {},
   -- html = { filetypes = { 'html', 'twig', 'hbs'} },
   texlab = {},
@@ -116,3 +116,35 @@ mason_lspconfig.setup_handlers {
     }
   end,
 }
+
+-- System LSPs
+
+local lspconfig = require('lspconfig')
+servers = {
+  rust_analyzer = {
+    ["rust-analyzer"] = {
+      imports = {
+        granularity = {
+          group = "module",
+        },
+        prefix = "self",
+      },
+      cargo = {
+        buildScripts = {
+          enable = true,
+        },
+      },
+      procMacro = {
+        enable = true
+      },
+    }
+  },
+}
+
+for server_name, server_settings in pairs(servers) do
+  lspconfig[server_name].setup {
+    capabilities = capabilities,
+    on_attach = on_attach,
+    settings = server_settings,
+  }
+end