Hyperswitch-FuncDiff: Function-Level PR-to-Commit Evolution Dataset

Overview

A comprehensive dataset of function-level code evolution from the Hyperswitch payment platform, tracking how individual functions, structs, and implementations evolve across PR commits. Includes both code diffs and PR metadata with commit timelines.

What's Inside

• Function-level granularity: Complete function definitions (before/after), not just line diffs
• Import tracking: Dependency changes captured separately
• PR-to-commit mapping: Track code evolution from PR through individual commits
• PR metadata: Full PR descriptions, labels, authors, and commit messages
• Merged PRs only: Only includes PRs that were successfully merged to the main branch
• Rust codebase: Real-world financial technology code

Data Structure

Folders

dataset/
├── diffs/                    # Function-level code changes
│   └── pr_{number}/         
│       └── {commit_sha}/     
│           └── diff.json     
└── prs/                      # PR metadata and descriptions
    └── pr_{number}.json      

1. Diffs Folder (diffs/)

Function-level code changes organized by PR and commit.

Example: diffs/pr_10115/1a5b4dd/diff.json

Schema:

{
  "commit_sha": "string",
  "pr_number": number,
  "rust_files": ["string"],
  "diffs": [{
    "id": "file::kind::name",
    "kind": "function_item|struct_item|impl_item",
    "status": "modified|added|deleted",
    "before_code": "string",
    "after_code": "string",
    "before_imports": ["string"],
    "after_imports": ["string"]
  }]
}

2. PRs Folder (prs/)

Pull request metadata including descriptions, labels, commits, and timelines.

Example: prs/pr_10115.json

Schema:

{
  "number": number,
  "title": "string",
  "description": "string",
  "author": "string",
  "created_at": "ISO8601",
  "merged_at": "ISO8601",
  "base_branch": "string",
  "labels": ["string"],
  "url": "string",
  "commits": [{
    "sha": "string",
    "message": "string",
    "author": "string",
    "date": "ISO8601",
    "url": "string"
  }]
}

Use Cases

1. Synthetic Data Generation: Generate realistic code modifications for training and testing
2. Time Series Analysis: Study code evolution patterns over time and across commits
3. Code Understanding Models: Train models to understand function-level changes and their context
4. Refactoring Detection: Identify and learn common refactoring patterns
5. Code Review Automation: Build systems that understand code change patterns
6. Dependency Analysis: Learn how code changes affect imports and dependencies
7. Software Evolution Research: Analyze how production codebases evolve

Statistics

• 1,000+ Pull Requests (merged to main branch only)
• Commit-level granularity tracking evolution within each PR
• Rust codebase from production payment platform
• Function/struct/impl level changes with full context
• Import tracking for dependency evolution
• Rich PR metadata including descriptions, labels, and commit messages

Example

Diff Example (diffs/pr_10115/1a5b4dd/diff.json):

{
  "id": "crates/router/src/core/webhooks/incoming.rs::function::payouts_incoming_webhook_flow",
  "kind": "function_item",
  "status": "modified",
  "before_code": "async fn payouts_incoming_webhook_flow(...) { ... }",
  "after_code": "async fn payouts_incoming_webhook_flow(...) { ... }",
  "before_imports": ["use api_models::{...};"],
  "after_imports": ["use api_models::{...};", "use hyperswitch_interfaces::webhooks::{...};"]
}

PR Metadata Example (prs/pr_10115.json):

{
  "number": 10115,
  "title": "fix(payouts): webhook error consumption",
  "description": "## Type of Change\n- [x] Bugfix\n...",
  "author": "Sakilmostak",
  "created_at": "2025-11-04T08:01:05+00:00",
  "merged_at": "2025-11-04T08:24:11+00:00",
  "labels": ["A-core", "C-bug", "Payouts"],
  "commits": [{
    "sha": "1a5b4dddf555c9ace61b528641cf118b4a67d988",
    "message": "fix(payouts): webhook error consumption",
    "author": "Sakil Mostak"
  }]
}

License

Apache 2.0 (same as Hyperswitch)

Author & Contact

Author: Sirajuddin Shaik
Organization: Juspay
Repository: https://huggingface.co/datasets/SirajRLX/hyperswitch-funcdiff

Citation

@dataset{hyperswitch_funcdiff_2025,
  title={Hyperswitch-FuncDiff: Function-Level PR-to-Commit Evolution Dataset},
  author={Shaik, Siraj},
  organization={Juspay},
  year={2025},
  publisher={Hugging Face},
  url={https://huggingface.co/datasets/SirajRLX/hyperswitch-funcdiff}
}