[BUG] Unnecessary File System Reads

[ANSHIKATYAGI30]

Describe the Bug

The collectMissingDeps() function repeatedly calls loadInternalAliases(cwd) inside the nested import-processing loop for every imported module in every scanned file.
This causes unnecessary repeated reads and parsing of tsconfig.json / jsconfig.json, which can significantly slow down dependency scanning in larger projects with many files and imports.
Additionally, malformed or dynamically-generated import statements may still be incorrectly matched by the current regex-based parser, leading to potential false positives during dependency validation.

Steps to Reproduce

1. Add multiple .js, .ts, or .tsx files inside the src/ directory.
2. Include many imports across those files.
3. Run the dependency validation script.
4. Observe repeated filesystem access and slower execution times due to repeated config parsing

Expected Behavior

1. Internal aliases from tsconfig.json / jsconfig.json should be loaded only once during execution.
2. The dependency scan should avoid unnecessary filesystem operations.
3. Import extraction should remain efficient and reliable for large codebases.

Additional Context

Suggested improvement:

• Move const INTERNAL_ALIASES = loadInternalAliases(cwd); outside the nested loop.
• Cache aliases once before processing files.
• This reduces repeated JSON parsing and improves scalability for larger repositories.

@Priyanshu-byte-coder I would like to contribute a fix for this issue. Kindly this issue to me under GSSoc'26.

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[gitsofyash]

Hi @Priyanshu-byte-coder 👋

I'd love to work on this issue under GSSoc'26! Could you please assign it to me?

🔍 Root Cause

The loadInternalAliases(cwd) call inside the nested loop causes repeated reads and JSON parsing of tsconfig.json / jsconfig.json — once per imported module, per file. In large codebases, this adds significant I/O overhead unnecessarily.

🛠️ Planned Fix

• Move const INTERNAL_ALIASES = loadInternalAliases(cwd); outside the nested loop, so aliases are loaded exactly once before file processing begins.
• Cache the result and pass it through to wherever it's consumed inside the loop.
• Additionally, review the regex-based import parser for edge cases with malformed or dynamic imports, and add test coverage for these scenarios.

✅ Expected Outcome

• tsconfig.json / jsconfig.json is parsed only once per execution.
• Dependency scanning performance improves noticeably on large projects.
• No regression in alias resolution accuracy.

Let me know if you'd like me to go ahead — happy to submit a PR once assigned! 🙌