fix: secret referencing string matching #271
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- Modified regex patterns to improve handling of cross-application environment variables and local references, ensuring compatibility with various syntax formats. - Introduced checks to ignore Railway-style syntax, enhancing flexibility in environment variable parsing.
- Replaced local variable references for cross-environment and local reference patterns with constants for improved clarity and maintainability. - This change enhances the readability of the code and ensures consistent usage of the defined patterns throughout the module.
- Introduced new tests to ensure that Railway-style ${{...}} and GitHub Actions ${{ secrets.X }} syntax are preserved during secret resolution.
- Added tests for mixed references and secret values containing Railway syntax to validate correct behavior in various scenarios.
- These enhancements improve the robustness of the secret resolution functionality by preventing unintended alterations to specific syntax formats.
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rohan-chaturvedi
approved these changes
Dec 30, 2025
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Updated the CLIs secret referencing regex pattern matching logic to handle other alternative referencing syntax for platforms like Railway.
RAILWAY_REF="${{RAILWAY_REF}}"Before this change the CLI would handle it correctly from the users standpoint. But the actual implementation had a flaw which would partially match the secret and look it up, if not found return the original value as is (which is a reason why initially this was thought to be an non issue).High level explanation
SECRET_REF_REGEXcaptures${{RAILWAY_REF}}['{RAILWAY_REF']← with leading{![]← correctly ignored${RAILWAY_REF}['RAILWAY_REF']['RAILWAY_REF']${{RAILWAY_REF}(up to the first}){RAILWAY_REFas the "secret key" (including the leading{){RAILWAY_REF${{RAILWAY_REF}as the unresolved placeholder${{RAILWAY_REF}with${{RAILWAY_REF}${{RAILWAY_REF}}is preservedThe fragility:
If someone ever created a secret literally named
{RAILWAY_REF(with the brace), the current code would incorrectly substitute it:Changes made: