bicep console: Support piping and stdin/out redirection

[levimatheri]

Description

For #18410. Enables piping and stdin/out redirection into the bicep console (i.e. piping | or file redirection < & output redirection '>`).

Example Usage

Powershell:
Piping:

Bash:
Piping:

Std-in redirection from file:

Multi-line support:

Output redirection:

Checklist

• I have read and adhere to the contribution guide.

Microsoft Reviewers: Open in CodeFlow

[github-actions]

Test this change out locally with the following install scripts (Action run 20941660410)

VSCode

• Mac/Linux

  bash <(curl -Ls https://aka.ms/bicep/nightly-vsix.sh) --run-id 20941660410

• Windows

  iex "& { $(irm https://aka.ms/bicep/nightly-vsix.ps1) } -RunId 20941660410"

Azure CLI

• Mac/Linux

  bash <(curl -Ls https://aka.ms/bicep/nightly-cli.sh) --run-id 20941660410

• Windows

  iex "& { $(irm https://aka.ms/bicep/nightly-cli.ps1) } -RunId 20941660410"

[anthony-c-martin]

Should we always disable ANSI color mode for output if output is being redirected?

[levimatheri]

Good point, otherwise writing to a file looks weird and could complicate downstream pipelines consuming the output.

echo "split('foo,bar,baz', ',')" | bicep console > bicep_output.txt

Will make the change.