dotnet/runtime

System.Console.ReadKey fails in MSYS' console mintty

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#49,210 opened on Mar 5, 2021

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area-System.Consolebughelp wantedos-linux

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Description

When using System.Console.ReadKey under mintty, the MSYS console, it raises an exception.

Configuration

.NET Core 3.1 Windows 10 x64 MSYS

Regression?

No

Other information

Unhandled exception: System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation.
 ---> System.InvalidOperationException: Cannot read keys when either application does not have a console or when console input has been redirected. Try Console.Read.
   at System.ConsolePal.ReadKey(Boolean intercept)
   at System.Console.ReadKey()

https://github.com/aaru-dps/Aaru/issues/562

Contributor guide

Research direction
Investigate System.ConsolePal.ReadKey implementation for Windows and determine why it throws InvalidOperationException when running under mintty. Consider how to detect mintty or handle console input redirection differently.
Tech stack
csharp
Domain
cli
Issue type
Bug
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
3
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-3 hours
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Clear
Prerequisites
C#Git
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
60