Question 1

How to run a PowerShell command from F# using Fli?

Accepted Answer

Use the `Shell PWSH` operation in the `cli` computation expression, then provide the command string. For example, `cli { Shell PWSH; Command 'Get-Process' } |> Command.execute` executes the command and captures output, as shown in the README examples.

Question 2

Fli vs using System.Diagnostics.Process directly in F# – which is better?

Accepted Answer

Fli offers a more idiomatic F# syntax with computation expressions, making code cleaner and more maintainable for complex CLI interactions. However, for trivial cases, System.Diagnostics.Process might be simpler but less elegant and type-safe.

Question 3

How to handle errors when a CLI command fails in Fli?

Accepted Answer

Use `Output.throwIfErrored` or `Output.throw` with a custom condition to assert on the output, throwing exceptions on non-zero exit codes or specific errors. This is ideal for build scripts to fail fast, as demonstrated in the error handling examples.

Question 4

Can Fli execute commands as a different user on non-Windows systems?

Accepted Answer

On non-Windows systems, Fli supports setting a username via the `Username` operation but not full credentials with domain and password. Advanced authentication is limited to Windows, as noted in the README's credential section.

Question 5

How to redirect CLI output to a log file with Fli?

Accepted Answer

Use the `Output` operation with a file path, e.g., `Output @"C:\logs\output.txt"`. This writes standard output to the specified file, similar to the dotnet --list-sdks example in the README.

Question 6

Is Fli suitable for build automation in .NET Core projects?

Accepted Answer

Yes, Fli is compatible with .NET Core and can automate build tasks by executing commands like dotnet build, with error handling via Output.throwIfErrored to ensure scripts stop on failures, as highlighted in the features.

Fli

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