WSL2+ale-lint-other-machines (Windows)

[gastmaier]

I want to use vim ALE in the same way VSCode server works in WSL2, by running the linters in the container and the IDE in the Host.

At Linting On Other Machines - doc/ale.txt I thought I got what I wanted,
however I can't figure out how to change the "docker in bash" example by a "wsl2 in powershell".

What I tried (targeting only one container):
At .vimrc:

if has("win32")
	set shell=powershell
	set shellcmdflag=-command
	let g:ale_cpp_clangd_executable = 'C:\Users\me\work\share\linters\clangd.ps1'
	let g:ale_linters = { 'cpp':['clangd'],}
	let g:ale_filename_mappings = {
	\ 'clangd': [
	\   ['\\wsl.localhost\Ubuntu-22.04\home\me\dev', '/home/me/dev'],
	\ ],
	\}
endif

At clangd.ps1:

wsl --setdefault Ubuntu-22.04 | out-null
Write-Host "Got command $args"
bash -c $args

Sequence of commands after launching vim.exe:

:cd \\wsl.localhost\Ubuntu-22.04\home\me\dev
:o src\main.cpp
:ALEInfoClipboard

ALEInfoClipboard output:

 Current Filetype: cpp
Available Linters: ['cc', 'ccls', 'clangcheck', 'clangd', 'clangtidy', 'clazy', 'cppcheck', 'cpplint', 'cquery', 'cspell', 'flawfinder']
   Linter Aliases:
'cc' -> ['gcc', 'clang', 'g++', 'clang++']
  Enabled Linters: ['clangd']
  Ignored Linters: []
 Suggested Fixers: 
  'astyle' - Fix C/C++ with astyle.
  'clang-format' - Fix C, C++, C#, CUDA, Java, JavaScript, JSON, ObjectiveC and Protobuf files with clang-format.
  'clangtidy' - Fix C/C++ and ObjectiveC files with clang-tidy.
  'remove_trailing_lines' - Remove all blank lines at the end of a file.
  'trim_whitespace' - Remove all trailing whitespace characters at the end of every line.
  'uncrustify' - Fix C, C++, C#, ObjectiveC, ObjectiveC++, D, Java, Pawn, and VALA files with uncrustify.
 Linter Variables:

let g:ale_cpp_clangd_executable = 'C:\Users\me\work\share\linters\clangd.ps1'
let g:ale_cpp_clangd_options = ''
 Global Variables:

let g:ale_cache_executable_check_failures = v:null
let g:ale_change_sign_column_color = 0
let g:ale_command_wrapper = v:null
let g:ale_completion_delay = 100
let g:ale_completion_enabled = 1
let g:ale_completion_max_suggestions = 50
let g:ale_disable_lsp = 0
let g:ale_echo_cursor = 1
let g:ale_echo_msg_error_str = 'Error'
let g:ale_echo_msg_format = '%code: %%s'
let g:ale_echo_msg_info_str = 'Info'
let g:ale_echo_msg_warning_str = 'Warning'
let g:ale_enabled = 1
let g:ale_fix_on_save = 0
let g:ale_fixers = {'c': ['clang-format'], 'json': ['jq'], '*': ['remove_trailing_lines', 'trim_whitespace'], 'ruby': ['rubocop'], 'python': ['flake8'], 'c++': ['clang-format']}
let g:ale_history_enabled = 1
let g:ale_history_log_output = 1
let g:ale_keep_list_window_open = 0
let g:ale_lint_delay = 200
let g:ale_lint_on_enter = 1
let g:ale_lint_on_filetype_changed = 1
let g:ale_lint_on_insert_leave = 1
let g:ale_lint_on_save = 1
let g:ale_lint_on_text_changed = 'never'
let g:ale_linter_aliases = {}
let g:ale_linters = {'cpp': ['clangd']}
let g:ale_linters_explicit = 0
let g:ale_linters_ignore = {}
let g:ale_list_vertical = 0
let g:ale_list_window_size = 10
let g:ale_loclist_msg_format = '%code: %%s'
let g:ale_max_buffer_history_size = 20
let g:ale_max_signs = -1
let g:ale_maximum_file_size = v:null
let g:ale_open_list = 0
let g:ale_pattern_options = v:null
let g:ale_pattern_options_enabled = v:null
let g:ale_root = {}
let g:ale_set_balloons = 0
let g:ale_set_highlights = 1
let g:ale_set_loclist = 1
let g:ale_set_quickfix = 0
let g:ale_set_signs = 1
let g:ale_sign_column_always = 0
let g:ale_sign_error = '●'
let g:ale_sign_info = '.'
let g:ale_sign_offset = 1000000
let g:ale_sign_style_error = '●'
let g:ale_sign_style_warning = '.'
let g:ale_sign_warning = '.'
let g:ale_sign_highlight_linenrs = 0
let g:ale_statusline_format = v:null
let g:ale_type_map = {}
let g:ale_use_global_executables = v:null
let g:ale_virtualtext_cursor = 'disabled'
let g:ale_warn_about_trailing_blank_lines = 1
let g:ale_warn_about_trailing_whitespace = 1
  Command History:

(executable check - failure) C:\Users\me\work\share\linters\clangd.ps1

The g:ale_cpp_clangd_executable and g:ale_linters enabled just fine, but the powershell script does not seem to be being called...

With !C:\Users\me\work\share\linters\clangd.ps1 ls I get:

Got command ls
<ls from inside the container>

just as I expected.

How can I debug if ALE is calling my powershell script? Does it even support it?

[gastmaier]

I think I made progress replacing the PowerShell script by this gorgeous clangd.bat:

echo off
wsl --setdefault Ubuntu-22.04  /f > nul
bash -c "%*"

which indicates that ALE will use cmd.exe even if the shell is set to PowerShell.
The progress itself is that, at :ALEinfo, now I get:

(executable check - success) C:\Users\me\work\share\linters\clangd.bat

instead of (executable check - failure)...
But I get no output, is there a way to capture everything in the "executable check" run?

Note: %* in the bat should be the same as $@ in .sh, right?

[w0rp]

It would be good if you could open an issue for making this kind of a thing a little bit easier. This is the kind of thing I like to try to make a bit easier to do.