feat(fzf-lua): added smart open/add that will use selection or all wh…

…en nothing selected.

README.md

@@ -628,8 +628,7 @@ You can easily open any search results in **Trouble**, by defining a custom acti
 ```lua
 local config = require("fzf-lua.config")
 local actions = require("trouble.sources.fzf").actions
-config.defaults.actions.files["ctrl-t"] = actions.open_all
-config.defaults.actions.files["alt-t"] = actions.open
+config.defaults.actions.files["ctrl-t"] = actions.open
 ```
 
 When you open telescope, you can now hit `<c-t>` to open the results in **Trouble**

lua/trouble/sources/fzf.lua

@@ -107,10 +107,21 @@ function M.open(selected, fzf_opts, opts)
   M.add(selected, fzf_opts, opts)
 end
 
+local smart_prefix = require("trouble.util").is_win() and "IF %FZF_SELECT_COUNT% LEQ 0 (echo select-all)"
+  or "transform([ $FZF_SELECT_COUNT -eq 0 ] && echo select-all)"
+
 M.actions = {
-  open = M.open,
+  -- Open selected or all items in the trouble list.
+  open = { fn = M.open, prefix = smart_prefix },
+  -- Open selected items in the trouble list.
+  open_selected = M.open,
+  -- Open all items in the trouble list.
   open_all = { fn = M.open, prefix = "select-all" },
-  add = M.add,
+  -- Add selected or all items to the trouble list.
+  add = { fn = M.add, prefix = smart_prefix },
+  -- Add selected items to the trouble list.
+  add_selected = M.add,
+  -- Add all items to the trouble list.
   add_all = { fn = M.add, prefix = "select-all" },
 }
 

lua/trouble/util.lua

@@ -11,6 +11,10 @@ function M.noautocmd(fn)
   vim.o.eventignore = ei
 end
 
+function M.is_win()
+  return vim.uv.os_uname().sysname:find("Windows") ~= nil
+end
+
 ---@param opts? {msg?: string}
 function M.try(fn, opts)
   local ok, err = pcall(fn)