feat(commands): complete quick peek providers dynamically

Author: mhiro2

lua/peekstack/commands.lua

@@ -177,21 +177,7 @@ function M.setup()
   end, {
     nargs = "?",
     complete = function()
-      return {
-        "lsp.definition",
-        "lsp.implementation",
-        "lsp.references",
-        "lsp.type_definition",
-        "lsp.declaration",
-        "lsp.symbols_document",
-        "diagnostics.under_cursor",
-        "diagnostics.in_buffer",
-        "file.under_cursor",
-        "grep.search",
-        "marks.buffer",
-        "marks.global",
-        "marks.all",
-      }
+      return require("peekstack").list_providers()
     end,
   })
 end

lua/peekstack/init.lua

@@ -43,6 +43,13 @@ function M.register_provider(name, fn)
   providers[name] = fn
 end
 
+---@return string[]
+function M.list_providers()
+  local names = vim.tbl_keys(providers)
+  table.sort(names)
+  return names
+end
+
 ---@param name string
 ---@param fn PeekstackPicker
 function M.register_picker(name, fn)