utils: use subshell to avoid eval in exec_cmd

[dougsland]

Summary by Sourcery

Enhancements:

• Improve safety and robustness of exec_cmd in e2e test utilities by replacing eval with a subshell-based approach.

[sourcery-ai]

Reviewer's guide (collapsed on small PRs)

Reviewer's Guide

Updates the e2e test utility exec_cmd implementation to execute commands in a subshell instead of using eval, improving safety and predictability of command execution in test utilities.

File-Level Changes

Change	Details	Files
Replace eval-based command execution in test utilities with a safer subshell-based approach.	Refactor exec_cmd to run provided commands in a subshell rather than via eval Adjust argument/quoting handling to be compatible with subshell execution semantics Ensure existing e2e utilities continue to work with the new exec_cmd behavior	tests/e2e/lib/utils

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[gemini-code-assist]

Summary of Changes

Hello @dougsland, I'm Gemini Code Assist¹! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request focuses on enhancing the exec_cmd utility function by replacing the eval command with a subshell execution, which significantly improves the security and reliability of command execution. Additionally, it introduces clearer logging for command operations and refines the associated success and error messages.

Highlights

• Security and Robustness: The exec_cmd function has been refactored to replace the potentially unsafe eval command with a more secure and controlled subshell execution using bash -o pipefail -c.
• Improved Logging: A new 'RUN' log message is now displayed before executing any command, providing better visibility into the command's execution flow.
• Enhanced Messaging: Error and success messages for command execution have been updated for improved clarity and conciseness.

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[sourcery-ai]

Hey - I've reviewed your changes and they look great!

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[gemini-code-assist]

Code Review

This pull request improves the exec_cmd utility function by replacing the potentially unsafe eval command with a safer bash -c execution in a subshell. This is a great change for security and robustness. The addition of the -o pipefail option is also a good practice. My review includes a minor suggestion to enhance the logging for successful commands to improve traceability.

[dougsland]

Resolves: #953

[Yarboa]

I do not understand the change, is it the eval as security concerns?
Why not using the if_err_exit?