broke the tele picker, fix pt 1

lua/custom/plugins/debug.lua

@@ -55,6 +55,7 @@ return {
     },
     config = function()
       local dap = require 'dap'
+      local utils = require 'custom.utils'
 
       -- Configure the LLDB DAP adapter for C/C++
       -- Assumes 'lldb-dap' executable is in PATH (from pkgs.llvmPackages_XX.lldb)
@@ -63,19 +64,15 @@ return {
         command = 'lldb-dap',
         name = 'lldb-dap (Nix)',
       }
+
       dap.configurations.cpp = {
         {
           name = 'Launch C/C++ (lldb-dap)',
           type = 'lldb',
           request = 'launch',
-          program = coroutine.wrap(function()
-            local exe = require('custom.utils').pick_executable(vim.fn.getcwd() .. '/build')
-            if not exe then
-              vim.notify('Debug session cancelled: executable not selected', vim.log.levels.INFO)
-              return nil
-            end
-            return exe
-          end),
+          program = function()
+            return utils.pick_executable_for_dap(vim.fn.getcwd() .. '/build')
+          end,
           cwd = '${workspaceFolder}',
           stopOnEntry = false,
           args = {},

lua/custom/utils.lua

@@ -1,64 +1,70 @@
-local function is_executable(path)
-  -- Use `file` command to identify Mach-O or ELF binaries
-  local output = vim.fn.system { 'file', '-b', path }
-  return output:match 'Mach%-O' or output:match 'ELF'
-end
-
-local function collect_executables(dir)
-  local files = vim.fn.globpath(dir, '**', true, true)
-  local binaries = {}
-  for _, path in ipairs(files) do
-    if vim.fn.filereadable(path) == 1 and is_executable(path) and not path:match 'CMakeFiles' then
-      table.insert(binaries, path)
-    end
-  end
-  return binaries
-end
-
-local function pick_executable(start_dir)
-  local co = coroutine.running()
-  if not co then
-    error 'pick_executable must be called from a coroutine'
+local async = require 'plenary.async.util'
+local pickers = require 'telescope.pickers'
+local finders = require 'telescope.finders'
+local sorters = require('telescope.config').values
+local actions = require 'telescope.actions'
+local action_state = require 'telescope.actions.state'
+local Path = require 'plenary.path'
+
+local function collect_executables(start_dir)
+  local results = {}
+  local fd = vim.fn.systemlist { 'fd', '--type', 'x', '--exec', 'file', '{}', start_dir }
+  for _, line in ipairs(fd) do
+    local path, typeinfo = line:match '^(.-):%s*(.+)$'
+    if path and not path:match 'CMakeFiles' and typeinfo and typeinfo:match 'Mach%-O' or typeinfo:match 'ELF' then
+      table.insert(results, path)
+    end
+  end
+  return results
 end
 
+local function pick_executable(start_dir, on_choice)
   local executables = collect_executables(start_dir)
   if #executables == 0 then
     vim.notify('No executables found in ' .. start_dir, vim.log.levels.WARN)
+    on_choice(nil)
     return
   end
 
-  local actions = require 'telescope.actions'
-  local action_state = require 'telescope.actions.state'
-
-  require('telescope.pickers')
+  pickers
     .new({}, {
       prompt_title = 'Select Executable',
-      finder = require('telescope.finders').new_table {
-        results = executables,
-      },
-      sorter = require('telescope.config').values.generic_sorter {},
+      finder = finders.new_table { results = executables },
+      sorter = sorters.generic_sorter {},
       attach_mappings = function(_, map)
-        map('i', '<CR>', function(prompt_bufnr)
+        actions.select_default:replace(function(prompt_bufnr)
           local entry = action_state.get_selected_entry()
           actions.close(prompt_bufnr)
-          coroutine.resume(co, entry.value)
+          on_result(entry.value)
         end)
-        map('i', '<Esc>', function(prompt_bufnr)
-          actions.close(prompt_bufnr)
-          coroutine.resume(co, nil)
+        map('i', '<Esc>', function(buf)
+          actions.close(buf)
+          on_result(nil)
         end)
-        map('n', 'q', function(prompt_bufnr)
-          actions.close(prompt_bufnr)
-          coroutine.resume(co, nil)
+        map('n', 'q', function(buf)
+          actions.close(buf)
+          on_result(nil)
         end)
         return true
       end,
     })
     :find()
+end
 
-  return coroutine.yield()
+local function pick_executable_for_dap(start_dir)
+  return async.void(function()
+    local co = coroutine.running()
+    pick_executable(start_dir, function(choice)
+      coroutine.resume(co, choice)
+    end)
+    local result = coroutine.yield()
+    if not result then
+      vim.notify('Debug launch cancelled', vim.log.levels.INFO)
+    end
+    return result
+  end)()
 end
 
 return {
-  pick_executable = pick_executable,
+  pick_executable_for_dap = pick_executable_for_dap,
 }