Metals lsp

lua/plugins/init.lua

@@ -11,3 +11,4 @@ require("plugins.flash")
 require("plugins.git")
 require("plugins.conform")
 require("plugins.neogen")
+require("plugins.metals")

lua/plugins/lsp.lua

@@ -1,6 +1,11 @@
 vim.pack.add({ 'https://github.com/neovim/nvim-lspconfig' })
+vim.pack.add({ 'https://github.com/j-hui/fidget.nvim' })
+
+require("fidget").setup()
+
 vim.lsp.enable({ 'lua_ls' })
 vim.lsp.enable({ 'clangd' })
+-- vim.lsp.enable({ 'metals' })
 
 vim.lsp.config("rust_analyzer", {
     settings = {
@@ -9,12 +14,12 @@ vim.lsp.config("rust_analyzer", {
             {
                 postfix = { enable = true, },
             },
-                check = {
-                    command = "clippy",
-                },
-            }
-        },
-    }
+            check = {
+                command = "clippy",
+            },
+        }
+    },
+}
 )
 vim.lsp.enable('rust_analyzer')
 

lua/plugins/metals.lua

@@ -0,0 +1,33 @@
+vim.pack.add({ "https://github.com/scalameta/nvim-metals" })
+local metals_config = require("metals").bare_config()
+
+metals_config.capabilities = require("blink.cmp").get_lsp_capabilities()
+metals_config.on_attach = function(client, bufnr)
+    -- Your existing keymaps, scoped to the buffer
+    local opts = { buffer = bufnr }
+
+    vim.keymap.set("n", "<leader>t", vim.diagnostic.open_float, opts)
+    vim.keymap.set("n", "<leader>sr", vim.lsp.buf.rename, opts)
+    vim.keymap.set("n", "<leader>gD", vim.lsp.buf.declaration, opts)
+    vim.keymap.set("n", "<leader>gd", vim.lsp.buf.definition, opts)
+    vim.keymap.set("n", "<leader>gi", vim.lsp.buf.implementation, opts)
+    vim.keymap.set("n", "<leader>ca", vim.lsp.buf.code_action, opts)
+    vim.keymap.set("v", "<leader>ca", vim.lsp.buf.code_action, opts)
+    vim.keymap.set("n", "<leader>f", function()
+        vim.lsp.buf.format({ async = true })
+    end, opts)
+    vim.keymap.set("n", "K", vim.lsp.buf.hover, opts)
+
+    -- Inlay hints
+    vim.lsp.inlay_hint.enable(false, { bufnr = bufnr })
+end
+
+local ft = { "scala", "sbt", "java" }
+local nvim_metals_group = vim.api.nvim_create_augroup("nvim-metals", { clear = true })
+vim.api.nvim_create_autocmd("FileType", {
+    pattern = ft,
+    callback = function()
+        require("metals").initialize_or_attach(metals_config)
+    end,
+    group = nvim_metals_group,
+})