cache pkg_mode

stdlib/REPL/src/REPL.jl

@@ -1080,6 +1080,9 @@ setup_interface(
  extra_repl_keymap::Any = repl.options.extra_keymap
 ) = setup_interface(repl, hascolor, extra_repl_keymap)
 
+# we have to grab this after Pkg is loaded so cache it
+pkg_mode::Union{Nothing,LineEdit.Prompt} = nothing
+
 # This non keyword method can be precompiled which is important
 function setup_interface(
  repl::LineEditREPL,
@@ -1225,18 +1228,20 @@ function setup_interface(
  end,
  ']' => function (s::MIState,o...)
  if isempty(s) || position(LineEdit.buffer(s)) == 0
- pkgid = Base.PkgId(Base.UUID("44cfe95a-1eb2-52ea-b672-e2afdf69b78f"), "Pkg")
- REPLExt = Base.require_stdlib(pkgid, "REPLExt")
- pkg_mode = nothing
- if REPLExt isa Module && isdefined(REPLExt, :PkgCompletionProvider)
- for mode in repl.interface.modes
- if mode isa LineEdit.Prompt && mode.complete isa REPLExt.PkgCompletionProvider
- pkg_mode = mode
- break
+ global pkg_mode
+ if pkg_mode === nothing
+ pkgid = Base.PkgId(Base.UUID("44cfe95a-1eb2-52ea-b672-e2afdf69b78f"), "Pkg")
+ REPLExt = Base.require_stdlib(pkgid, "REPLExt")
+ pkg_mode = nothing
+ if REPLExt isa Module && isdefined(REPLExt, :PkgCompletionProvider)
+ for mode in repl.interface.modes
+ if mode isa LineEdit.Prompt && mode.complete isa REPLExt.PkgCompletionProvider
+ pkg_mode = mode
+ break
+ end
  end
  end
  end
- # TODO: Cache the `pkg_mode`?
  if pkg_mode !== nothing
  buf = copy(LineEdit.buffer(s))
  transition(s, pkg_mode) do