feat: Add graph of download history

.github/workflows/update-download-stats.yml

@@ -0,0 +1,39 @@
+name: Update Download Statistics
+
+on:
+  schedule:
+    # Run daily at 00:00 UTC
+    - cron: "0 0 * * *"
+  workflow_dispatch:
+
+jobs:
+  update-stats:
+    name: Update download statistics and graph
+    runs-on: ubuntu-latest
+    permissions:
+      contents: write
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - name: Set up Python
+        uses: actions/setup-python@v5
+
+      - name: Install dependencies
+        run: |
+          pip install requests matplotlib
+
+      - name: Update download statistics
+        run: |
+          python update_download_stats.py
+
+      - name: Commit and push changes
+        run: |
+          git config --global user.name "github-actions[bot]"
+          git config --global user.email "41898282+github-actions[bot]@users.noreply.github.com"
+          git add docs/data/download_history.json docs/data/download_graph.png
+          git diff --staged --quiet || git commit -m "chore: update download statistics
+
+          Update download statistics and graph for $(date -u +%Y-%m-%d)"
+          git push

README.md

@@ -136,6 +136,34 @@ If you use this repository in your research and find it helpful, please cite the
 }
 ```
 
+## Star History and Download Statistics
+
+<div style="display: flex; flex-direction: row; gap: 24px; width: 100%;">
+  <a href="https://www.star-history.com/#mjun0812/flash-attention-prebuild-wheels&type=date&legend=top-left" style="display: inline-block;">
+    <picture>
+      <source media="(prefers-color-scheme: dark)" srcset="https://api.star-history.com/svg?repos=mjun0812/flash-attention-prebuild-wheels&type=date&theme=dark&legend=top-left" />
+      <source media="(prefers-color-scheme: light)" srcset="https://api.star-history.com/svg?repos=mjun0812/flash-attention-prebuild-wheels&type=date&legend=top-left" />
+      <img alt="Star History Chart" src="https://api.star-history.com/svg?repos=mjun0812/flash-attention-prebuild-wheels&type=date&legend=top-left" height="300"/>
+    </picture>
+  </a>
+  <img alt="Download Statistics" src="./docs/data/download_graph.png" height="300" style="display: inline-block;"/>
+</div>
+
 ## Original Repository
 
 [repo](https://github.com/Dao-AILab/flash-attention)
+
+```bibtex
+@inproceedings{dao2022flashattention,
+  title={Flash{A}ttention: Fast and Memory-Efficient Exact Attention with {IO}-Awareness},
+  author={Dao, Tri and Fu, Daniel Y. and Ermon, Stefano and Rudra, Atri and R{\'e}, Christopher},
+  booktitle={Advances in Neural Information Processing Systems (NeurIPS)},
+  year={2022}
+}
+@inproceedings{dao2023flashattention2,
+  title={Flash{A}ttention-2: Faster Attention with Better Parallelism and Work Partitioning},
+  author={Dao, Tri},
+  booktitle={International Conference on Learning Representations (ICLR)},
+  year={2024}
+}
+```

docs/data/download_history.json

@@ -0,0 +1,30 @@
+[
+  {
+    "timestamp": "2024-10-27T00:00:00+00:00",
+    "total_downloads": 0
+  },
+  {
+    "timestamp": "2025-12-04T13:25:33.785415+00:00",
+    "total_downloads": 906514
+  },
+  {
+    "timestamp": "2025-12-04T13:26:09.117076+00:00",
+    "total_downloads": 906524
+  },
+  {
+    "timestamp": "2025-12-04T13:46:48.639327+00:00",
+    "total_downloads": 906741
+  },
+  {
+    "timestamp": "2025-12-04T13:53:02.674280+00:00",
+    "total_downloads": 906828
+  },
+  {
+    "timestamp": "2025-12-04T13:53:35.050423+00:00",
+    "total_downloads": 906834
+  },
+  {
+    "timestamp": "2025-12-04T13:56:13.655744+00:00",
+    "total_downloads": 906837
+  }
+]

update_download_stats.py

@@ -0,0 +1,193 @@
+#!/usr/bin/env python3
+"""
+Fetch GitHub release download statistics and generate a graph.
+
+This script fetches download counts from GitHub API, stores historical data,
+and generates a graph showing download trends over time.
+"""
+
+import json
+from datetime import datetime, timezone
+from pathlib import Path
+
+import matplotlib.pyplot as plt
+import requests
+
+
+def fetch_download_stats(owner: str, repo: str) -> dict:
+    """
+    Fetch download statistics from GitHub API.
+
+    Args:
+        owner: Repository owner
+        repo: Repository name
+
+    Returns:
+        dict: Dictionary containing total downloads and timestamp
+    """
+    url = f"https://api.github.com/repos/{owner}/{repo}/releases"
+    headers = {}
+
+    # Fetch all releases with pagination
+    all_releases = []
+    page = 1
+    per_page = 100  # Maximum per page allowed by GitHub API
+
+    while True:
+        params = {"page": page, "per_page": per_page}
+        response = requests.get(url, headers=headers, params=params)
+        response.raise_for_status()
+
+        releases = response.json()
+        if not releases:
+            break
+
+        all_releases.extend(releases)
+        page += 1
+
+        # Check if there are more pages
+        if len(releases) < per_page:
+            break
+
+    print(f"Fetched {len(all_releases)} releases")
+
+    total_downloads = 0
+    release_data = []
+
+    for release in all_releases:
+        release_downloads = 0
+        for asset in release.get("assets", []):
+            release_downloads += asset.get("download_count", 0)
+
+        total_downloads += release_downloads
+        release_data.append(
+            {
+                "tag": release["tag_name"],
+                "name": release["name"],
+                "downloads": release_downloads,
+                "created_at": release["created_at"],
+            }
+        )
+
+    return {
+        "total_downloads": total_downloads,
+        "releases": release_data,
+    }
+
+
+def load_history(filepath: Path) -> list:
+    """
+    Load historical download statistics from JSON file.
+
+    Args:
+        filepath: Path to the history JSON file
+
+    Returns:
+        list: List of historical data points
+    """
+    if not filepath.exists():
+        return []
+
+    with open(filepath, "r") as f:
+        return json.load(f)
+
+
+def save_history(filepath: Path, history: list) -> None:
+    """
+    Save historical download statistics to JSON file.
+
+    Args:
+        filepath: Path to the history JSON file
+        history: List of historical data points
+    """
+    filepath.parent.mkdir(parents=True, exist_ok=True)
+    with open(filepath, "w") as f:
+        json.dump(history, f, indent=2)
+
+
+def generate_graph(history: list, output_path: Path, label: str = "") -> None:
+    """
+    Generate a download statistics graph in Star History (XKCD) style.
+    """
+    if len(history) < 2:
+        print("Not enough data to generate a graph (need at least 2 data points)")
+        return
+
+    dates = [datetime.fromisoformat(entry["timestamp"]) for entry in history]
+    downloads = [entry["total_downloads"] for entry in history]
+
+    # --- XKCD Style Context ---
+    # これにより手書き風のエフェクト（歪んだ線、手書きフォント）が適用されます
+    with plt.xkcd():
+        fig, ax = plt.subplots(figsize=(8, 6))
+
+        # Star History風の色（オレンジ/赤系）
+        line_color = "#f05133"
+
+        # プロット
+        ax.plot(
+            dates,
+            downloads,
+            color=line_color,
+            linewidth=3,
+            label=label if label else "Downloads",
+        )
+
+        if label:
+            legend = ax.legend(loc="upper left", frameon=True, fontsize=10)
+            legend.get_frame().set_edgecolor("black")
+            legend.get_frame().set_linewidth(1.5)
+
+        ax.spines["right"].set_color("none")
+        ax.spines["top"].set_color("none")
+
+        ax.spines["bottom"].set_linewidth(1.5)
+        ax.spines["left"].set_linewidth(1.5)
+
+        plt.title("Download History", fontsize=16, y=1.05)
+        plt.xlabel("Date", fontsize=12)
+        plt.ylabel("Total Downloads", fontsize=12)
+
+        ax.set_ylim(bottom=0)
+
+        ax.yaxis.set_major_formatter(plt.FuncFormatter(lambda x, p: f"{int(x):,}"))
+
+        fig.autofmt_xdate(rotation=0, ha="center")
+
+        plt.tight_layout()
+
+        output_path.parent.mkdir(parents=True, exist_ok=True)
+        plt.savefig(output_path, dpi=150, bbox_inches="tight", facecolor="white")
+        print(f"Graph saved to {output_path}")
+
+
+def main():
+    """Main function to update download statistics and generate graph."""
+    owner = "mjun0812"
+    repo = "flash-attention-prebuild-wheels"
+    history_file = Path("docs/data/download_history.json")
+    graph_output = Path("docs/data/download_graph.png")
+
+    # Fetch current stats
+    print("Fetching download statistics from GitHub API...")
+    current_stats = fetch_download_stats(owner, repo)
+    print(f"Total downloads: {current_stats['total_downloads']}")
+
+    # Load and update history
+    history = load_history(history_file)
+    history.append(
+        {
+            "timestamp": datetime.now(timezone.utc).isoformat(),
+            "total_downloads": current_stats["total_downloads"],
+        }
+    )
+
+    # Save updated history
+    save_history(history_file, history)
+    print(f"History saved to {history_file}")
+
+    generate_graph(history, graph_output, f"{owner}/{repo}")
+
+
+if __name__ == "__main__":
+    main()