Stdio mode broken since v3.0.0

Hi!

Kate is an awesome open source text editor made by the KDE folks, and it supports language servers. By default, they provide configurations for some popular languages, documented here: https://docs.kde.org/trunk5/en/kate/kate/kate-application-plugin-lspclient.html

I am trying to add PowerShell support in it, by using this config:

{
    "servers": {
        "powershell": {
            "command": ["pwsh", "-NoLogo", "-NoProfile", "-Command", "%{ENV:USERPROFILE}/Desktop/PowerShellEditorServices/PowerShellEditorServices/Start-EditorServices.ps1", "-BundledModulesPath", "%{ENV:USERPROFILE}/Desktop/PowerShellEditorServices", "-LogPath", "%{ENV:TEMP}/kate/logs.log", "-SessionDetailsPath", "%{ENV:TEMP}/kate/session.json", "-HostName", "Kate", "-HostProfileId", "KDE.Kate", "-HostVersion", "2.0.0", "-Stdio", "-LogLevel", "Normal"],
            "highlightingModeRegex": "^PowerShell$"
        }
    }
}

The server starts successfully, and recognizes symbols, but that's it. Nothing else seems to work, definitions go-to, hover etc. This is the log:

2022-02-02 12:11:37.835 +05:30 [INF] highlight handler loaded
2022-02-02 12:11:38.942 +05:30 [INF] PSScriptAnalyzer settings file not found. Falling back to default rules
2022-02-02 12:11:43.975 +05:30 [FTL] Failed to handle request textDocument/hover 3
System.InvalidOperationException: Stack empty.
   at System.Collections.Generic.Stack`1.ThrowForEmptyStack()
   at System.Collections.Generic.Stack`1.Peek()
   at Microsoft.PowerShell.EditorServices.Services.PowerShell.Host.PsesInternalHost.get_CurrentFrame() in D:\a\1\s\src\PowerShellEditorServices\Services\PowerShell\Host\PsesInternalHost.cs:line 153
   at Microsoft.PowerShell.EditorServices.Services.PowerShell.Host.PsesInternalHost.get_CurrentRunspace() in D:\a\1\s\src\PowerShellEditorServices\Services\PowerShell\Host\PsesInternalHost.cs:line 137
   at Microsoft.PowerShell.EditorServices.Services.PowerShell.Host.PsesInternalHost.Microsoft.PowerShell.EditorServices.Services.PowerShell.Runspace.IRunspaceContext.get_CurrentRunspace() in D:\a\1\s\src\PowerShellEditorServices\Services\PowerShell\Host\PsesInternalHost.cs:line 151
   at Microsoft.PowerShell.EditorServices.Services.SymbolsService.FindSymbolDetailsAtLocationAsync(ScriptFile scriptFile, Int32 lineNumber, Int32 columnNumber) in D:\a\1\s\src\PowerShellEditorServices\Services\Symbols\SymbolsService.cs:line 327
   at Microsoft.PowerShell.EditorServices.Handlers.PsesHoverHandler.Handle(HoverParams request, CancellationToken cancellationToken) in D:\a\1\s\src\PowerShellEditorServices\Services\TextDocument\Handlers\HoverHandler.cs:line 49
   at OmniSharp.Extensions.LanguageServer.Server.Pipelines.SemanticTokensDeltaPipeline`2.Handle(TRequest request, CancellationToken cancellationToken, RequestHandlerDelegate`1 next)
   at OmniSharp.Extensions.LanguageServer.Server.Pipelines.ResolveCommandPipeline`2.Handle(TRequest request, CancellationToken cancellationToken, RequestHandlerDelegate`1 next)
   at MediatR.Pipeline.RequestPreProcessorBehavior`2.Handle(TRequest request, CancellationToken cancellationToken, RequestHandlerDelegate`1 next)
   at MediatR.Pipeline.RequestPostProcessorBehavior`2.Handle(TRequest request, CancellationToken cancellationToken, RequestHandlerDelegate`1 next)
   at MediatR.Pipeline.RequestExceptionProcessorBehavior`2.Handle(TRequest request, CancellationToken cancellationToken, RequestHandlerDelegate`1 next)
   at MediatR.Pipeline.RequestExceptionProcessorBehavior`2.Handle(TRequest request, CancellationToken cancellationToken, RequestHandlerDelegate`1 next)
   at MediatR.Pipeline.RequestExceptionActionProcessorBehavior`2.Handle(TRequest request, CancellationToken cancellationToken, RequestHandlerDelegate`1 next)
   at MediatR.Pipeline.RequestExceptionActionProcessorBehavior`2.Handle(TRequest request, CancellationToken cancellationToken, RequestHandlerDelegate`1 next)
   at OmniSharp.Extensions.JsonRpc.RequestRouterBase`1.<RouteRequest>g__InnerRoute|7_0(IServiceScopeFactory serviceScopeFactory, Request request, TDescriptor descriptor, Object params, CancellationToken token, ILogger logger)
   at OmniSharp.Extensions.JsonRpc.RequestRouterBase`1.RouteRequest(IRequestDescriptor`1 descriptors, Request request, CancellationToken token)
   at OmniSharp.Extensions.JsonRpc.DefaultRequestInvoker.<>c__DisplayClass10_0.<<RouteRequest>b__5>d.MoveNext()

I'm using PowerShell 7.1.2 on Windows 10 21H2.

I had the same issue when trying to use the builtin Neovim LSP client. I tried some older versions of the PowerShell Editor Services, release 2.5.3 works fine for me so far. Seems like this is broken since 3.0

Wow! Thank you, you're a genius :)

2.5.3 works perfect.

Seems like this is broken since 3.0

It looks like there was a major refactor, which broke it for stdio mode.

Updated the title to be more specific

I think it's probably #1592

Interestingly though, we have a suite of LSP and DAP tests which use PSES over stdio, and they work. So we'll have to dig into what exactly is still broken.

Looking at that stack trace makes me wonder if we actually get into a command loop, since non-Code LSP clients don't usually start up an integrated console. 🤔

If it helps, Kate does have an integrated terminal, but only on Linux.

Hm, does it work on Linux just fine?

I have not tested it (don't have linux system).

Just had a chance to test on Linux and got the exact same behavior. 3.1.2 and 3.1.3 lead to the error message from the original post, 2.5.3 works.

I'm having the same issue using the Neovim LSP client and version 3.1.6 on Windows. Version 2.5.3 works just fine.

Because I didn't set up the project before, I spend hours troubleshooting this thing until I found this issue... Since LSP is just starting to take off in many editors, it is actually a bit frightening that stdio clients have been broken for so long, with many releases in between.

jflepp We are still working on getting v3 "released" into its main consumer, the VS Code extension. Once that work is done, we're slated to come back and get the stdio mode working again too 😊

Andy Jordan (@andschwa)

Andy Jordan (@andschwa) Appreciate the work, thanks for the update 👍

Sorry if I came off a bit judgy / demanding, I was just a bit frustrated. It's now working in the 2.5 release and I'm having a blast working with PowerShell completely in the console 😊

But if I understand this correctly, does this mean that the versions 3.0.0+ are neither working in VSCode nor in stdio based editors? Maybe it would then make sense to mark them as pre-releases so that people don't get confused.

3.0.0 is only in the preview channel for VS Code, and our top priority is to get that stable enough to release to the stable channel. So it's working (it uses named pipes) but we're working on sorting through our remaining MVP issues.

Getting to work on this now!

I think I got this solved! It was...a doozy. Had a few issues to fix. Tested successfully with eglot in Emacs. Will get a release out ASAP (today is the plan!) and hope you all can test in your various environments with different clients.

Rashil Gandhi (@rashil2000)

Heyo, sorry, that took a bit longer to get out than expected due to client-side tests failing. Rashil Gandhi (@rashil2000), fl3pp, Yannick Schneider (@ydschneider) Can you give v3.4.0 a try?

Andy Jordan (@andschwa)

Hi Andy Jordan (@andschwa), thanks for taking a look at the issue.

Unfortunately, the version you supplied doesn't work, although a behavior change was noticeable. In the log of NeoVim NVIM v0.7.0-dev+1385-g6786b6afa I can see following exceptions thrown by PowershellES:

2022-05-19 20:56:07.394 +02:00 [FTL] Failed to handle request initialize 1
System.Management.Automation.PSInvalidOperationException: No commands are specified.
   at System.Management.Automation.PowerShell.Prepare[TInput,TOutput](PSDataCollection`1 input, PSDataCollection`1 output, PSInvocationSettings settings, Boolean shouldCreateWorker)
   at System.Management.Automation.PowerShell.CoreInvokeHelper[TInput,TOutput](PSDataCollection`1 input, PSDataCollection`1 output, PSInvocationSettings settings)
   at System.Management.Automation.PowerShell.CoreInvoke[TInput,TOutput](PSDataCollection`1 input, PSDataCollection`1 output, PSInvocationSettings settings)
   at System.Management.Automation.PowerShell.CoreInvoke[TOutput](IEnumerable input, PSDataCollection`1 output, PSInvocationSettings settings)
   at System.Management.Automation.PowerShell.Invoke(IEnumerable input, PSInvocationSettings settings)
   at Microsoft.PowerShell.EditorServices.Services.PowerShell.Utility.PowerShellExtensions.InvokeAndClear(PowerShell pwsh, PSInvocationSettings invocationSettings) in D:\a\_work\1\s\src\PowerShellEditorServices\Services\PowerShell\Utility\PowerShellExtensions.cs:line 88
   at Microsoft.PowerShell.EditorServices.Services.PowerShell.Utility.PowerShellExtensions.InvokeCommand(PowerShell pwsh, PSCommand psCommand, PSInvocationSettings invocationSettings) in D:\a\_work\1\s\src\PowerShellEditorServices\Services\PowerShell\Utility\PowerShellExtensions.cs:line 105
   at Microsoft.PowerShell.EditorServices.Services.PowerShell.Utility.PowerShellExtensions.LoadProfiles(PowerShell pwsh, ProfilePathInfo profilePaths) in D:\a\_work\1\s\src\PowerShellEditorServices\Services\PowerShell\Utility\PowerShellExtensions.cs:line 214
   at Microsoft.PowerShell.EditorServices.Services.PowerShell.Host.PsesInternalHost.<LoadHostProfilesAsync>b__102_0(PowerShell pwsh, CancellationToken _) in D:\a\_work\1\s\src\PowerShellEditorServices\Services\PowerShell\Host\PsesInternalHost.cs:line 437
   at Microsoft.PowerShell.EditorServices.Services.PowerShell.Execution.SynchronousPSDelegateTask.Run(CancellationToken cancellationToken) in D:\a\_work\1\s\src\PowerShellEditorServices\Services\PowerShell\Execution\SynchronousDelegateTask.cs:line 95
   at Microsoft.PowerShell.EditorServices.Services.PowerShell.Execution.SynchronousTask`1.ExecuteSynchronously(CancellationToken executorCancellationToken) in D:\a\_work\1\s\src\PowerShellEditorServices\Services\PowerShell\Execution\SynchronousTask.cs:line 92
--- End of stack trace from previous location ---
   at Microsoft.PowerShell.EditorServices.Services.PowerShell.Host.PsesInternalHost.TryStartAsync(HostStartOptions startOptions, CancellationToken cancellationToken) in D:\a\_work\1\s\src\PowerShellEditorServices\Services\PowerShell\Host\PsesInternalHost.cs:line 250
   at OmniSharp.Extensions.LanguageServer.Server.LanguageServer.MediatR.IRequestHandler<OmniSharp.Extensions.LanguageServer.Protocol.Models.InternalInitializeParams,OmniSharp.Extensions.LanguageServer.Protocol.Models.InitializeResult>.Handle(InternalInitializeParams request, CancellationToken token)
   at OmniSharp.Extensions.LanguageServer.Server.Pipelines.SemanticTokensDeltaPipeline`2.Handle(TRequest request, CancellationToken cancellationToken, RequestHandlerDelegate`1 next)
   at OmniSharp.Extensions.LanguageServer.Server.Pipelines.ResolveCommandPipeline`2.Handle(TRequest request, CancellationToken cancellationToken, RequestHandlerDelegate`1 next)
   at MediatR.Pipeline.RequestPreProcessorBehavior`2.Handle(TRequest request, CancellationToken cancellationToken, RequestHandlerDelegate`1 next)
   at MediatR.Pipeline.RequestPostProcessorBehavior`2.Handle(TRequest request, CancellationToken cancellationToken, RequestHandlerDelegate`1 next)
   at MediatR.Pipeline.RequestExceptionProcessorBehavior`2.Handle(TRequest request, CancellationToken cancellationToken, RequestHandlerDelegate`1 next)
   at MediatR.Pipeline.RequestExceptionProcessorBehavior`2.Handle(TRequest request, CancellationToken cancellationToken, RequestHandlerDelegate`1 next)
   at MediatR.Pipeline.RequestExceptionActionProcessorBehavior`2.Handle(TRequest request, CancellationToken cancellationToken, RequestHandlerDelegate`1 next)
   at MediatR.Pipeline.RequestExceptionActionProcessorBehavior`2.Handle(TRequest request, CancellationToken cancellationToken, RequestHandlerDelegate`1 next)
   at OmniSharp.Extensions.JsonRpc.RequestRouterBase`1.<RouteRequest>g__InnerRoute|7_0(IServiceScopeFactory serviceScopeFactory, Request request, TDescriptor descriptor, Object params, CancellationToken token, ILogger logger)
   at OmniSharp.Extensions.JsonRpc.RequestRouterBase`1.RouteRequest(IRequestDescriptor`1 descriptors, Request request, CancellationToken token)
   at OmniSharp.Extensions.JsonRpc.DefaultRequestInvoker.<>c__DisplayClass10_0.<<RouteRequest>b__5>d.MoveNext()
2022-05-19 20:56:07.439 +02:00 [WRN] Tried to send request or notification before initialization was completed and will be sent later {"Id":1,"Error":{"Code":-32603,"Data":null,"Message":"Internal Error - System.Management.Automation.PSInvalidOperationException: No commands are specified.\r\n   at System.Management.Automation.PowerShell.Prepare[TInput,TOutput](PSDataCollection`1 input, PSDataCollection`1 output, PSInvocationSettings settings, Boolean shouldCreateWorker)\r\n   at System.Management.Automation.PowerShell.CoreInvokeHelper[TInput,TOutput](PSDataCollection`1 input, PSDataCollection`1 output, PSInvocationSettings settings)\r\n   at System.Management.Automation.PowerShell.CoreInvoke[TInput,TOutput](PSDataCollection`1 input, PSDataCollection`1 output, PSInvocationSettings settings)\r\n   at System.Management.Automation.PowerShell.CoreInvoke[TOutput](IEnumerable input, PSDataCollection`1 output, PSInvocationSettings settings)\r\n   at System.Management.Automation.PowerShell.Invoke(IEnumerable input, PSInvocationSettings settings)\r\n   at Microsoft.PowerShell.EditorServices.Services.PowerShell.Utility.PowerShellExtensions.InvokeAndClear(PowerShell pwsh, PSInvocationSettings invocationSettings) in D:\\a\\_work\\1\\s\\src\\PowerShellEditorServices\\Services\\PowerShell\\Utility\\PowerShellExtensions.cs:line 88\r\n   at Microsoft.PowerShell.EditorServices.Services.PowerShell.Utility.PowerShellExtensions.InvokeCommand(PowerShell pwsh, PSCommand psCommand, PSInvocationSettings invocationSettings) in D:\\a\\_work\\1\\s\\src\\PowerShellEditorServices\\Services\\PowerShell\\Utility\\PowerShellExtensions.cs:line 105\r\n   at Microsoft.PowerShell.EditorServices.Services.PowerShell.Utility.PowerShellExtensions.LoadProfiles(PowerShell pwsh, ProfilePathInfo profilePaths) in D:\\a\\_work\\1\\s\\src\\PowerShellEditorServices\\Services\\PowerShell\\Utility\\PowerShellExtensions.cs:line 214\r\n   at Microsoft.PowerShell.EditorServices.Services.PowerShell.Host.PsesInternalHost.<LoadHostProfilesAsync>b__102_0(PowerShell pwsh, CancellationToken _) in D:\\a\\_work\\1\\s\\src\\PowerShellEditorServices\\Services\\PowerShell\\Host\\PsesInternalHost.cs:line 437\r\n   at Microsoft.PowerShell.EditorServices.Services.PowerShell.Execution.SynchronousPSDelegateTask.Run(CancellationToken cancellationToken) in D:\\a\\_work\\1\\s\\src\\PowerShellEditorServices\\Services\\PowerShell\\Execution\\SynchronousDelegateTask.cs:line 95\r\n   at Microsoft.PowerShell.EditorServices.Services.PowerShell.Execution.SynchronousTask`1.ExecuteSynchronously(CancellationToken executorCancellationToken) in D:\\a\\_work\\1\\s\\src\\PowerShellEditorServices\\Services\\PowerShell\\Execution\\SynchronousTask.cs:line 92\r\n--- End of stack trace from previous location ---\r\n   at Microsoft.PowerShell.EditorServices.Services.PowerShell.Host.PsesInternalHost.TryStartAsync(HostStartOptions startOptions, CancellationToken cancellationToken) in D:\\a\\_work\\1\\s\\src\\PowerShellEditorServices\\Services\\PowerShell\\Host\\PsesInternalHost.cs:line 250\r\n   at OmniSharp.Extensions.LanguageServer.Server.LanguageServer.MediatR.IRequestHandler<OmniSharp.Extensions.LanguageServer.Protocol.Models.InternalInitializeParams,OmniSharp.Extensions.LanguageServer.Protocol.Models.InitializeResult>.Handle(InternalInitializeParams request, CancellationToken token)\r\n   at OmniSharp.Extensions.LanguageServer.Server.Pipelines.SemanticTokensDeltaPipeline`2.Handle(TRequest request, CancellationToken cancellationToken, RequestHandlerDelegate`1 next)\r\n   at OmniSharp.Extensions.LanguageServer.Server.Pipelines.ResolveCommandPipeline`2.Handle(TRequest request, CancellationToken cancellationToken, RequestHandlerDelegate`1 next)\r\n   at MediatR.Pipeline.RequestPreProcessorBehavior`2.Handle(TRequest request, CancellationToken cancellationToken, RequestHandlerDelegate`1 next)\r\n   at MediatR.Pipeline.RequestPostProcessorBehavior`2.Handle(TRequest request, CancellationToken cancellationToken, RequestHandlerDelegate`1 next)\r\n   at MediatR.Pipeline.RequestExceptionProcessorBehavior`2.Handle(TRequest request, CancellationToken cancellationToken, RequestHandlerDelegate`1 next)\r\n   at MediatR.Pipeline.RequestExceptionProcessorBehavior`2.Handle(TRequest request, CancellationToken cancellationToken, RequestHandlerDelegate`1 next)\r\n   at MediatR.Pipeline.RequestExceptionActionProcessorBehavior`2.Handle(TRequest request, CancellationToken cancellationToken, RequestHandlerDelegate`1 next)\r\n   at MediatR.Pipeline.RequestExceptionActionProcessorBehavior`2.Handle(TRequest request, CancellationToken cancellationToken, RequestHandlerDelegate`1 next)\r\n   at OmniSharp.Extensions.JsonRpc.RequestRouterBase`1.<RouteRequest>g__InnerRoute|7_0(IServiceScopeFactory serviceScopeFactory, Request request, TDescriptor descriptor, Object params, CancellationToken token, ILogger logger)\r\n   at OmniSharp.Extensions.JsonRpc.RequestRouterBase`1.RouteRequest(IRequestDescriptor`1 descriptors, Request request, CancellationToken token)\r\n   at OmniSharp.Extensions.JsonRpc.DefaultRequestInvoker.<>c__DisplayClass10_0.<<RouteRequest>b__5>d.MoveNext()","$type":"ErrorMessage"},"Method":"initialize","$type":"InternalError"}

The configuration I'm running works flawlessly with version 2.5.3:

local temp_path = vim.fn.stdpath 'cache'
local pes_path = vim.env.HOME .. '\\bin\\powershell-es'
local pes_template =
   [[& '%s\PowerShellEditorServices\Start-EditorServices.ps1' -BundledModulesPath '%s' -LogPath '%s\powershell_es.log' -SessionDetailsPath '%s\powershell_es.session.json' -FeatureFlags @() -AdditionalModules @() -HostName nvim -HostProfileId 0 -HostVersion 1.0.0 -Stdio -LogLevel Normal]]

require'lspconfig'.powershell_es.setup {
   on_attach = on_attach,
   capabilities = capabilities,
   shell = 'pwsh',
   cmd = {
      'pwsh',
      '-NoLogo',
      '-NoProfile',
      '-Command',
      pes_template:format(pes_path,pes_path,temp_path,temp_path)
}}

Interesting...I have it working with Emacs and eglot with this configuration:

(use-package eglot ; an LSP client in GNU ELPA
  :hook
  (powershell-mode . eglot-ensure)
  :custom
  (eglot-auto-display-help-buffer t)
  (eglot-autoshutdown t)
  (eglot-confirm-server-initiated-edits nil)
  (eglot-connect-timeout nil)
  :config
  (add-to-list 'eglot-server-programs '(powershell-mode . ("pwsh" "-NoLogo" "-NoProfile" "-Command" "~/src/PowerShellEditorServices/module/PowerShellEditorServices/Start-EditorServices.ps1" "-BundledModulesPath" "/Users/andschwa/src/PowerShellEditorServices/module" "-Stdio" "-LogPath" "/Users/andschwa/src/pses.log" "-SessionDetailsPath" "/Users/andschwa/src/session.json" "-HostName" "Emacs" "-HostProfileId" "Emacs" "-HostVersion" "1.0.0" "-LogLevel" "Diagnostic"))))

We figured it out! Fix incoming.

fl3pp

fl3pp thanks for that log, it was super helpful. #1807

fl3pp

Ok fl3pp Can you please test https://github.com/PowerShell/PowerShellEditorServices/releases/tag/v3.4.1? I fixed that issue, but wonder if you'll find another!

Andy Jordan (@andschwa)

Andy Jordan (@andschwa) didn't find anything, it just works!

Thanks for fixing and have a nice weekend 😄

Yay! Thank you for testing!!!

Hey all, I really didn't want this to happen again, so I've setup a full regression test against Eglot (an Emacs LSP client using PSES over stdio).

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Stdio mode broken since v3.0.0 #1695

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Stdio mode broken since v3.0.0 #1695

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