added go dap

2026-07-16 10:38:46 +00:00 · 2026-06-26 10:29:35 +02:00
parent c6739ea0da
commit 287defca42
2 changed files with 123 additions and 1 deletions
@@ -0,0 +1,115 @@
+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:${port}" },
+    },
+}
+
+-- Configurations
+dap.configurations.go = {
+    {
+        type = "go",
+        request = "launch",
+        name = "Debug (current file)",
+        program = "${file}",
+    },
+    {
+        type = "go",
+        request = "launch",
+        name = "Debug package",
+        program = "${fileDirname}",
+    },
+    {
+        type = "go",
+        request = "launch",
+        name = "Debug package (with args)",
+        program = "${fileDirname}",
+        args = function()
+            local input = vim.fn.input("Args: ")
+            return vim.split(input, " ", { trimempty = true })
+        end,
+    },
+    {
+        type = "go",
+        request = "launch",
+        mode = "test",
+        name = "Debug test (current file)",
+        program = "${file}",
+    },
+    {
+        type = "go",
+        request = "launch",
+        mode = "test",
+        name = "Debug test (package)",
+        program = "${fileDirname}",
+    },
+    {
+        type = "go",
+        request = "attach",
+        mode = "local",
+        name = "Attach to process",
+        processId = require("dap.utils").pick_process,
+    },
+}
+
+-- Debug the test function under the cursor using delve's -test.run filter.
+local function debug_test_at_cursor()
+    local ok, node = pcall(vim.treesitter.get_node)
+    if not ok or not node then
+        vim.notify("Tree-sitter parser not found. Ensure you are in a Go buffer.", vim.log.levels.ERROR)
+        return
+    end
+
+    local func_name = nil
+    local attempts = 0
+    while node do
+        if node:type() == "function_declaration" then
+            for child in node:iter_children() do
+                if child:type() == "identifier" then
+                    func_name = vim.treesitter.get_node_text(child, 0)
+                    break
+                end
+            end
+            break
+        end
+        node = node:parent()
+        attempts = attempts + 1
+        if attempts > 50 then
+            break
+        end
+    end
+
+    if not func_name then
+        vim.notify("Cursor is not inside a test function.", vim.log.levels.WARN)
+        return
+    end
+
+    dap.run({
+        type = "go",
+        request = "launch",
+        mode = "test",
+        name = "Debug test: " .. func_name,
+        program = "${fileDirname}",
+        args = { "-test.run", "^" .. func_name .. "$" },
+    })
+end
+
+M.debug_test_at_cursor = debug_test_at_cursor
+
+return M