added go dap

.config/nvim/lua/dap/dap-go.lua

@@ -0,0 +1,53 @@
+local dap = require("dap")
+
+local M = {}
+
+-- Locate the delve binary (prefer mason, fall back to PATH).
+local function dlv_command()
+    local mason = vim.fn.expand("$HOME/.local/share/nvim/mason/bin/dlv")
+    if vim.fn.filereadable(mason) == 1 then
+        return mason
+    end
+    return "dlv"
+end
+
+-- Adapter: run delve in DAP server mode on a free port.
+dap.adapters.go = {
+    type = "server",
+    port = "${port}",
+    executable = {
+        command = dlv_command(),
+        args = { "dap", "-l", "127.0.0.1:${port}" },
+    },
+}
+
+-- Walk upwards from the current file to find the Go module root (go.mod).
+local function find_go_root()
+    local start = vim.fn.expand("%:p:h")
+    if start == "" then
+        start = vim.fn.getcwd()
+    end
+    local found = vim.fs.find("go.mod", { upward = true, path = start })[1]
+    if found then
+        return vim.fn.fnamemodify(found, ":h")
+    end
+    return nil
+end
+
+-- Find the module root and launch a delve debug session of the whole project.
+function M.debug_go()
+    local root = find_go_root()
+    if not root then
+        vim.notify("No go.mod found upwards from current file.", vim.log.levels.ERROR)
+        return
+    end
+    dap.run({
+        type = "go",
+        request = "launch",
+        name = "Debug project",
+        program = root,
+        cwd = root,
+    })
+end
+
+return M