Metals lsp

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,
+})