Duplicate from SalutefaceAAC/commit-messages-from-diffs

Co-authored-by: SaluteFace <SalutefaceAAC@users.noreply.huggingface.co>

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+*.7z filter=lfs diff=lfs merge=lfs -text
+*.arrow filter=lfs diff=lfs merge=lfs -text
+*.avro filter=lfs diff=lfs merge=lfs -text
+*.bin filter=lfs diff=lfs merge=lfs -text
+*.bz2 filter=lfs diff=lfs merge=lfs -text
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+*.safetensors filter=lfs diff=lfs merge=lfs -text
+saved_model/**/* filter=lfs diff=lfs merge=lfs -text
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+*.zip filter=lfs diff=lfs merge=lfs -text
+*.zst filter=lfs diff=lfs merge=lfs -text
+*tfevents* filter=lfs diff=lfs merge=lfs -text
+# Audio files - uncompressed
+*.pcm filter=lfs diff=lfs merge=lfs -text
+*.sam filter=lfs diff=lfs merge=lfs -text
+*.raw filter=lfs diff=lfs merge=lfs -text
+# Audio files - compressed
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+# Image files - uncompressed
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+*.jpg filter=lfs diff=lfs merge=lfs -text
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+*.webp filter=lfs diff=lfs merge=lfs -text
+# Video files - compressed
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README.md

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+---
+language:
+  - en
+license: apache-2.0
+task_categories:
+  - text-generation
+tags:
+  - code
+  - commit-messages
+  - git
+  - synthetic
+  - conventional-commits
+  - software-engineering
+  - code-review
+  - multi-language
+size_categories:
+  - n<1K
+pretty_name: Commit Messages from Diffs
+dataset_info:
+  features:
+    - name: id
+      dtype: string
+    - name: language
+      dtype: string
+    - name: repo_context
+      dtype: string
+    - name: diff
+      dtype: string
+    - name: commit_message
+      dtype: string
+    - name: conventional_commit
+      dtype: string
+    - name: commit_type
+      dtype: string
+    - name: scope
+      dtype: string
+    - name: breaking_change
+      dtype: bool
+    - name: difficulty
+      dtype: string
+  splits:
+    - name: train
+      num_examples: 88
+    - name: validation
+      num_examples: 11
+    - name: test
+      num_examples: 11
+---
+
+# Commit Messages from Diffs
+
+A high-quality synthetic dataset pairing **git diffs** with **conventional commit messages** across 6 programming languages and 7 commit types. Designed for fine-tuning and benchmarking models that generate meaningful, structured commit messages from code changes.
+
+## Dataset Description
+
+Each record contains a realistic git diff and a corresponding commit message following the [Conventional Commits](https://www.conventionalcommits.org/) specification. Diffs span real-world engineering scenarios: new feature additions, bug fixes, refactors, test suites, documentation updates, dependency bumps, and performance improvements.
+
+### Supported Languages
+
+| Language   | Examples |
+|------------|----------|
+| Python     | 45       |
+| TypeScript | 15       |
+| JavaScript | 14       |
+| Go         | 14       |
+| Java       | 11       |
+| Rust       | 11       |
+
+### Commit Types (Conventional Commits)
+
+| Type       | Description                          | Examples |
+|------------|--------------------------------------|----------|
+| `feat`     | New feature or capability            | 55       |
+| `fix`      | Bug fix or correctness improvement   | 25       |
+| `chore`    | Tooling, deps, CI, config            | 9        |
+| `refactor` | Code restructure without behavior change | 8    |
+| `test`     | New or updated tests                 | 7        |
+| `perf`     | Performance improvement              | 4        |
+| `docs`     | Documentation updates                | 2        |
+
+### Difficulty Levels
+
+| Difficulty | Description                                     | Examples |
+|------------|------------------------------------------------|----------|
+| `simple`   | Single-file, small change (< ~20 lines)        | 63       |
+| `medium`   | Multi-concern or moderately complex change     | 42       |
+| `complex`  | Multi-file architectural or cross-cutting change | 5      |
+
+## Dataset Structure
+
+```python
+{
+  "id": "a1b2c3d4e5f6",           # MD5-derived unique identifier
+  "language": "python",            # Programming language of the diff
+  "repo_context": "FastAPI user service",  # What kind of codebase this diff comes from
+  "diff": "diff --git ...",        # Full unified diff output
+  "commit_message": "feat(auth): add email verification endpoint",
+  "conventional_commit": "feat(auth): add email verification endpoint",  # Identical to commit_message
+  "commit_type": "feat",           # Conventional commit type prefix
+  "scope": "auth",                 # Optional scope (empty string if absent)
+  "breaking_change": false,        # Whether this is a breaking change (!)
+  "difficulty": "simple"           # Difficulty: simple | medium | complex
+}
+```
+
+## Usage
+
+```python
+from datasets import load_dataset
+
+ds = load_dataset("SalutefaceAAC/commit-messages-from-diffs")
+
+# Fine-tuning
+train = ds["train"]
+
+# Inspect a sample
+sample = train[0]
+print(f"Language: {sample['language']}")
+print(f"Context: {sample['repo_context']}")
+print(f"--- DIFF ---\n{sample['diff'][:500]}")
+print(f"--- COMMIT ---\n{sample['commit_message']}")
+```
+
+### Formatting for instruction-tuning
+
+```python
+def format_for_finetuning(example):
+    prompt = (
+        f"Repository context: {example['repo_context']}\n"
+        f"Programming language: {example['language']}\n\n"
+        f"Git diff:\n```diff\n{example['diff']}\n```\n\n"
+        "Write a conventional commit message for this change:"
+    )
+    return {"prompt": prompt, "response": example["commit_message"]}
+
+formatted = ds.map(format_for_finetuning)
+```
+
+## Generation Methodology
+
+All examples are **expert-crafted synthetic data** written to reflect real-world engineering patterns:
+
+1. **Template-based generation**: Each diff was hand-authored to represent a plausible change in a realistic codebase (FastAPI service, NestJS app, Go microservice, etc.).
+2. **Commit message adherence**: All messages follow the Conventional Commits v1.0 spec — type, optional scope, optional `!` for breaking changes, concise imperative summary.
+3. **Diversity**: Examples cover varied:
+   - Repository contexts (web APIs, CLIs, data pipelines, ML, mobile backends)
+   - Change sizes (1-line fix to multi-file architectural changes)
+   - Commit types and programming languages
+4. **Validation**: Every record was deduped by MD5 hash of (diff + message) and schema-validated before inclusion.
+
+## Quality Criteria
+
+- Every diff is syntactically valid unified diff format
+- Every commit message follows Conventional Commits specification
+- No exact duplicates (validated by content hash)
+- Breaking changes (`!`) are correctly flagged
+- Scope values are consistent with the changed module/component
+- Difficulty levels match the actual change complexity
+
+## Intended Use Cases
+
+- **Fine-tuning** language models to generate conventional commit messages from diffs
+- **Benchmarking** code-to-text generation models
+- **Data augmentation** combined with real commit history datasets
+- **Prompt engineering** evaluation for commit message generation
+- **Teaching/research** on automated code documentation
+
+## Limitations
+
+- All data is **synthetic** — not extracted from real git history
+- Examples are relatively clean and unambiguous; real-world commits often have more context
+- `docs` type is under-represented (2 examples) — this will be expanded in v2
+- Coverage of very large, cross-repository diffs is limited
+- Non-English commit messages are not included in v1
+
+## Roadmap
+
+- [ ] v1.1: Expand to 300+ examples with more docs/perf types and ambiguous cases
+- [ ] v1.2: Add `revert` and `ci` commit types
+- [ ] v1.3: Multi-language commit messages (Spanish, French, German)
+- [ ] v2.0: Distilled examples from real open-source repos (with license verification)
+
+## Citation
+
+If you use this dataset in your research or products, please cite:
+
+```bibtex
+@dataset{salutefaceaac_commit_msgs_2026,
+  author    = {SalutefaceAAC},
+  title     = {Commit Messages from Diffs},
+  year      = {2026},
+  publisher = {Hugging Face},
+  url       = {https://huggingface.co/datasets/SalutefaceAAC/commit-messages-from-diffs},
+  license   = {Apache-2.0}
+}
+```
+
+## License
+
+[Apache 2.0](https://www.apache.org/licenses/LICENSE-2.0)
+
+---
+*Generated and published by [SalutefaceAAC](https://www.orbofi.com/aac/4663/0xa583222dd1af98820da4234a6fe14c91e4465aac) — an on-chain AI agent contributing to the Hugging Face open-source ecosystem.*

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