PlugUpdate fails on Windows with powershell

[fwy]

Explain the problem here ...

I use neovim and vim on both Windows 10 and Linux, with many plugins. Recently on Windows I switched from cmd.exe to powershell, and have been tweaking my _vimrc configuration to work correctly with various plugins including vim-plug. In neovim everything is working, but in vim the PlugUpdate and PlugInstall commands are not working. The following errors are shown by the messages command.

Below is the _vimrc fragment where powershell is configured, including fixes introduced to support other plugins.

" Use powershell on Windows
if has("win32")
" Extension exe required for vim-plug
set shell=powershell.exe
set shellcmdflag=-NoLogo\ -NoProfile\ -ExecutionPolicy\ RemoteSigned\ -Command
" set shellquote=(
" Required to run shell commands
if has("nvim")
set shellquote=
else
set shellquote="
endif
set shellxquote=
" set shellpipe=|
" Required for ack
if has("nvim")
set shellpipe=|\ Out-File\ -Encoding\ UTF8
else
set shellpipe=>
endif
if has("nvim")
set shellredir=|\ Out-File\ -Encoding\ UTF8
else
" Required for fzf
set shellredir=>
endif
endif

I have been trying combinations of values for these options, but with no luck. I also tried the recommended configuration introduced in commit 8a44109, but it did not help.

set shell=powershell shellquote=( shellpipe=\| shellxquote=
set shellcmdflag=-NoLogo\ -NoProfile\ -ExecutionPolicy\ RemoteSigned\ -Command
set shellredir=\|\ Out-File\ -Encoding\ UTF8

I thought it might be a filename escape problem as described in the 'Windows System Error E484' entry on the FAQ page, but haven't found a solution.

---

VIM - Vi IMproved 8.2 (2019 Dec 12, compiled Sep 25 2020 12:42:23)
MS-Windows 64-bit GUI/console version with OLE support
Included patches: 1-1738
Compiled by tux0r@ROSAELEFANTC33A
Huge version with GUI.  Features included (+) or not (-):
+acl                +eval               +multi_byte_ime/dyn -tag_old_static
+arabic             +ex_extra           +multi_lang         -tag_any_white
+autocmd            +extra_search       +mzscheme/dyn       +tcl/dyn
+autochdir          -farsi              +netbeans_intg      +termguicolors
+autoservername     +file_in_path       +num64              +terminal
+balloon_eval       +find_in_path       +ole                -termresponse
+balloon_eval_term  +float              +packages           +textobjects
+browse             +folding            +path_extra         +textprop
++builtin_terms     -footer             +perl/dyn           -tgetent
+byte_offset        +gettext/dyn        +persistent_undo    +timers
+channel            -hangul_input       +popupwin           +title
+cindent            +iconv/dyn          -postscript         +toolbar
+clientserver       +insert_expand      +printer            +user_commands
+clipboard          +ipv6               +profile            +vartabs
+cmdline_compl      +job                +python/dyn         +vertsplit
+cmdline_hist       +jumplist           +python3/dyn        +virtualedit
+cmdline_info       +keymap             +quickfix           +visual
+comments           +lambda             +reltime            +visualextra
+conceal            +langmap            +rightleft          +viminfo
+cryptv             +libcall            +ruby/dyn           +vreplace
+cscope             +linebreak          +scrollbind         +vtp
+cursorbind         +lispindent         +signs              +wildignore
+cursorshape        +listcmds           +smartindent        +wildmenu
+dialog_con_gui     +localmap           +sound              +windows
+diff               +lua/dyn            +spell              +writebackup
+digraphs           +menu               +startuptime        -xfontset
+directx            +mksession          +statusline         -xim
-dnd                +modify_fname       -sun_workshop       +xpm_w32
-ebcdic             +mouse              +syntax             -xterm_save
+emacs_tags         +mouseshape         +tag_binary         
   system vimrc file: "$VIM\vimrc"
     user vimrc file: "$HOME\_vimrc"
 2nd user vimrc file: "$HOME\vimfiles\vimrc"
 3rd user vimrc file: "$VIM\_vimrc"
      user exrc file: "$HOME\_exrc"
  2nd user exrc file: "$VIM\_exrc"
  system gvimrc file: "$VIM\gvimrc"
    user gvimrc file: "$HOME\_gvimrc"
2nd user gvimrc file: "$HOME\vimfiles\gvimrc"
3rd user gvimrc file: "$VIM\_gvimrc"
       defaults file: "$VIMRUNTIME\defaults.vim"
    system menu file: "$VIMRUNTIME\menu.vim"
Compilation: cl -c /W3 /nologo  -I. -Iproto -DHAVE_PATHDEF -DWIN32  -DFEAT_CSCOPE -DFEAT_TERMINAL 
-DFEAT_SOUND -DFEAT_NETBEANS_INTG -DFEAT_JOB_CHANNEL -DFEAT_IPV6   -DFEAT_XPM_W32   
-DWINVER=0x0501 -D_WIN32_WINNT=0x0501 /source-charset:utf-8 /MP -DHAVE_STDINT_H /Ox /GL -DNDEBUG 

• Type:
  • Bug
  • Enhancement
  • Feature Request
  • [ x] Question
• OS:
  • All/Other
  • Linux
  • OS X
  • [x ] Windows
• Vim:
  • Terminal Vim
  • [ x] GVim
  • Neovim

[fleetingbytes]

I am getting exact the same error. With the environment variable COMSPEC set to C:\Windows\System32\cmd.exe I can install Plugins just fine, but when I set it to C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe I get this:

Here is my version info, for what it's worth:

VIM - Vi IMproved 8.2 (2019 Dec 12, compiled Mar 29 2022 22:03:04)
MS-Windows 64-bit GUI version with OLE support
Included patches: 1-4647
Compiled by appveyor@APPVYR-WIN
Huge version with GUI.  Features included (+) or not (-):
+acl                +ex_extra           +mzscheme/dyn       -tcl
+arabic             +extra_search       +netbeans_intg      -termguicolors
+autocmd            -farsi              +num64              +terminal
+autochdir          +file_in_path       +ole                -termresponse
+autoservername     +find_in_path       +packages           +textobjects
+balloon_eval       +float              +path_extra         +textprop
-balloon_eval_term  +folding            +perl/dyn           -tgetent
+browse             -footer             +persistent_undo    +timers
++builtin_terms     +gettext/dyn        +popupwin           +title
+byte_offset        -hangul_input       -postscript         +toolbar
+channel            +iconv/dyn          +printer            +user_commands
+cindent            +insert_expand      +profile            +vartabs
+clientserver       +ipv6               +python/dyn         +vertsplit
+clipboard          +job                +python3/dyn        +vim9script
+cmdline_compl      +jumplist           +quickfix           +viminfo
+cmdline_hist       +keymap             +reltime            +virtualedit
+cmdline_info       +lambda             +rightleft          +visual
+comments           +langmap            +ruby/dyn           +visualextra
+conceal            +libcall            +scrollbind         +vreplace
+cryptv             +linebreak          +signs              -vtp
+cscope             +lispindent         +smartindent        +wildignore
+cursorbind         +listcmds           +sodium/dyn         +wildmenu
+cursorshape        +localmap           +sound              +windows
+dialog_con_gui     +lua/dyn            +spell              +writebackup
+diff               +menu               +startuptime        -xfontset
+digraphs           +mksession          +statusline         -xim
+directx            +modify_fname       -sun_workshop       +xpm_w32
-dnd                +mouse              +syntax             -xterm_save
-ebcdic             +mouseshape         +tag_binary         
+emacs_tags         +multi_byte_ime/dyn -tag_old_static     
+eval               +multi_lang         -tag_any_white      
   system vimrc file: "$VIM\vimrc"
     user vimrc file: "$HOME\_vimrc"
 2nd user vimrc file: "$HOME\vimfiles\vimrc"
 3rd user vimrc file: "$VIM\_vimrc"
      user exrc file: "$HOME\_exrc"
  2nd user exrc file: "$VIM\_exrc"
  system gvimrc file: "$VIM\gvimrc"
    user gvimrc file: "$HOME\_gvimrc"
2nd user gvimrc file: "$HOME\vimfiles\gvimrc"
3rd user gvimrc file: "$VIM\_gvimrc"
       defaults file: "$VIMRUNTIME\defaults.vim"
    system menu file: "$VIMRUNTIME\menu.vim"
Compilation: cl -c /W3 /GF /nologo -I. -Iproto -DHAVE_PATHDEF -DWIN32  -DFEAT_CSCOPE -DFEAT_TERMINAL 
-DFEAT_SOUND -DFEAT_NETBEANS_INTG -DFEAT_JOB_CHANNEL -DFEAT_IPV6   -DFEAT_XPM_W32 
-DHAVE_SODIUM -DDYNAMIC_SODIUM -DDYNAMIC_SODIUM_DLL=\"libsodium.dll\" /I "C:\libsodium\include" 
-DWINVER=0x0501 -D_WIN32_WINNT=0x0501 /source-charset:utf-8 /MP -DHAVE_STDINT_H /Ox /GL -DNDEBUG 
/Zl /MT /D_CRT_SECURE_NO_DEPRECATE /D_CRT_NONSTDC_NO_DEPRECATE -DFEAT_OLE -DFEAT_MBYTE_IME 
-DDYNAMIC_IME -DFEAT_GUI_MSWIN -DFEAT_DIRECTX -DDYNAMIC_DIRECTX -DFEAT_DIRECTX_COLOR_EMOJI 
-DDYNAMIC_ICONV -DDYNAMIC_GETTEXT -DFEAT_LUA -DDYNAMIC_LUA -DDYNAMIC_LUA_DLL=\"lua54.dll\" 
-DFEAT_PYTHON -DDYNAMIC_PYTHON -DDYNAMIC_PYTHON_DLL=\"python27.dll\" -DFEAT_PYTHON3 
-DDYNAMIC_PYTHON3 -DDYNAMIC_PYTHON3_DLL=\"python310.dll\" -DFEAT_MZSCHEME -I 
"C:\racket\include" -DMZ_PRECISE_GC -DDYNAMIC_MZSCHEME -DDYNAMIC_MZSCH_DLL=\"libracket3m_da32r
k.dll\" -DDYNAMIC_MZGC_DLL=\"libracket3m_da32rk.dll\" -DFEAT_PERL -DPERL_IMPLICIT_CONTEXT 
-DPERL_IMPLICIT_SYS -DDYNAMIC_PERL -DDYNAMIC_PERL_DLL=\"perl532.dll\" -DFEAT_RUBY 
-DDYNAMIC_RUBY -DDYNAMIC_RUBY_DLL=\"x64-msvcrt-ruby300.dll\" -DRUBY_VERSION=30 -DFEAT_HUGE 
/Fd.\ObjGXOULYHRZAMD64/ /Zi
Linking: link /nologo /opt:ref /LTCG /HIGHENTROPYVA:NO oldnames.lib kernel32.lib advapi32.lib shell32.lib 
gdi32.lib  comdlg32.lib ole32.lib netapi32.lib uuid.lib user32.lib  /machine:AMD64 version.lib  winspool.lib 
comctl32.lib  libcmt.lib oleaut32.lib  /nodefaultlib:lua54.lib  /STACK:8388608  /nodefaultlib:python27.lib 
/nodefaultlib:python310.lib    winmm.lib WSock32.lib Ws2_32.lib xpm\x64\lib-vc14\libXpm.lib  /PDB:gvim.pdb 
-debug