csharp and neotree diags

vim/.vim/lua/plugins/mason.lua

@@ -54,6 +54,46 @@ return {
 			["rust_analyzer"] = function()
 				require("rust-tools").setup({})
 			end,
+			["omnisharp_mono"] = function()
+				require("lspconfig").omnisharp_mono.setup({
+					-- cmd = { "dotnet", "/path/to/omnisharp/OmniSharp.dll" },
+
+					-- Enables support for reading code style, naming convention and analyzer
+					-- settings from .editorconfig.
+					enable_editorconfig_support = true,
+
+					-- If true, MSBuild project system will only load projects for files that
+					-- were opened in the editor. This setting is useful for big C# codebases
+					-- and allows for faster initialization of code navigation features only
+					-- for projects that are relevant to code that is being edited. With this
+					-- setting enabled OmniSharp may load fewer projects and may thus display
+					-- incomplete reference lists for symbols.
+					enable_ms_build_load_projects_on_demand = false, -- default false
+
+					-- Enables support for roslyn analyzers, code fixes and rulesets.
+					enable_roslyn_analyzers = true, -- default false
+
+					-- Specifies whether 'using' directives should be grouped and sorted during
+					-- document formatting.
+					organize_imports_on_format = true, -- default false
+
+					-- Enables support for showing unimported types and unimported extension
+					-- methods in completion lists. When committed, the appropriate using
+					-- directive will be added at the top of the current file. This option can
+					-- have a negative impact on initial completion responsiveness,
+					-- particularly for the first few completion sessions after opening a
+					-- solution.
+					enable_import_completion = true, -- default false
+
+					-- Specifies whether to include preview versions of the .NET SDK when
+					-- determining which version to use for project loading.
+					sdk_include_prereleases = true,
+
+					-- Only run analyzers against open files when 'enableRoslynAnalyzers' is
+					-- true
+					analyze_open_documents_only = true, -- default false
+				})
+			end,
 			["lua_ls"] = function()
 				require("lspconfig").lua_ls.setup({
 					settings = {
@@ -71,9 +111,13 @@ return {
 								},
 							},
 							workspace = {
-								checkThirdParty = false, --# stop a anoying dialog on startup
+								checkThirdParty = false, -- stop a annoying dialog on startup
 								-- Make the server aware of Neovim runtime files
-								library = vim.api.nvim_get_runtime_file("", true),
+								-- library = vim.api.nvim_get_runtime_file("", true),
+								library = {
+									[vim.fn.expand("$VIMRUNTIME/lua")] = true,
+									[vim.fn.expand("$VIMRUNTIME/lua/vim/lsp")] = true,
+								},
 							},
 							-- Do not send telemetry data containing a randomized but unique identifier
 							telemetry = {