Tommy/improve-ref-handling #851
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Pull Request Overview
This PR significantly improves the ref handling in the get_file_contents tool to better handle different ref formats that models commonly provide. The issue was that while the GitHub API's content endpoint can handle both fully-qualified refs (refs/heads/branch_name) and short names (branch_name), the reference endpoint requires fully-qualified refs, causing the tool to fail frequently.
Key changes:
- Enhanced
resolveGitReferencefunction with robust logic to handle fully-qualified, partially-qualified, and short name refs - Added comprehensive test coverage for all ref resolution scenarios
- Improved error handling and logging for better diagnostics
Reviewed Changes
Copilot reviewed 2 out of 2 changed files in this pull request and generated 3 comments.
| File | Description |
|---|---|
| pkg/github/repositories.go | Enhanced resolveGitReference function with improved ref resolution logic and detailed documentation |
| pkg/github/repositories_test.go | Added comprehensive test cases covering all ref format scenarios and error conditions |
almaleksia
reviewed
Aug 11, 2025
almaleksia
reviewed
Aug 11, 2025
…f in case definitions and some of the logic
almaleksia
reviewed
Aug 11, 2025
almaleksia
approved these changes
Aug 11, 2025
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Closes: #728
Overview
This PR significantly improves how we handle refs in the
get_file_contentstool, after users reported the tool being often broken from bad ref handling.The problem
Despite the tool description, models can pass as argument to the tool a
refformatted either as fully qualified (e.g.refs/heads/beanch_name) or as short user-friendly names (e.g.branch_name).The get_repository_content endpoint from the Github API is able to handle both flexibly:
However, the
get_referenceendpoint doesn't (it requires arefformatted in a specific way):Our previous logic would fail often because it uses both endpoints but it was not handling user-friendly refs (e.g.
branch_name,heads/branch_name,tag_name), which are often provided by models to the tool. This would thus break the tool.The Solution
This PR introduces new, robust logic to resolve a
refby identifying the format in which it was provided and constructing a fully qualifiedrefaccordingly. In short, the newresolveGitReferencefunction now handles:refs/heads/mainheads/mainmain(discovering automatically if it's a branch or a tag)This ensures that the tool can handle the most common ways in which the
refinput is provided by the user.Additionally, I added:
Demo
