Replace inner variables first

[swissspidy]

This is a follow-up to #294

[github-actions]

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[codecov]

Codecov Report

❌ Patch coverage is 0% with 2 lines in your changes missing coverage. Please review.

Files with missing lines	Patch %	Lines
src/Context/FeatureContext.php	0.00%	2 Missing ⚠️

📢 Thoughts on this report? Let us know!

[gemini-code-assist]

Summary of Changes

Hello @swissspidy, 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 addresses an issue with variable replacement order, ensuring that inner variables are processed before outer ones. It also includes a new Behat test to validate this functionality and a null check to improve error handling.

Highlights

• Variable Replacement Order: The order of variable replacement in the replace_variables function has been adjusted to prioritize inner variables. This ensures that nested variables are correctly resolved.
• Behat Test: A new Behat test case has been added to verify the correct replacement of nested variables within the RUN_DIR context.
• Error Handling: A null check has been added to prevent errors when the shell_exec command returns null in the terminate_proc function.

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[gemini-code-assist]

Code Review

This pull request correctly addresses the issue of nested variable replacement by ensuring that general variables are processed before special INVOKE_WP_CLI_WITH_PHP_ARGS variables. Additionally, it includes a robust fix for handling potential null or false outputs from shell_exec to prevent runtime errors. The new test case in features/steps.feature validates the intended behavior, though a minor refinement to the regex pattern would improve its precision.