GitHub Экосистема 2025

#!/usr/bin/env python3
import requests
import json
from datetime import datetime, timedelta
import os

class DORAMetrics:
    def __init__(self, repo_owner, repo_name, token):
        self.repo_owner = repo_owner
        self.repo_name = repo_name
        self.token = token
        self.headers = {
            "Authorization": f"token {token}",
            "Accept": "application/vnd.github.v3+json"
        }

    def deployment_frequency(self, days=30):
        """Частота деплоев за указанный период"""
        url = f"https://api.github.com/repos/{self.repo_owner}/{self.repo_name}/deployments"
        since = datetime.now() - timedelta(days=days)
        params = {"since": since.isoformat()}
        
        response = requests.get(url, headers=self.headers, params=params)
        deployments = response.json()
        
        return {
            "total_deployments": len(deployments),
            "deployments_per_day": len(deployments) / days,
            "period_days": days
        }

    def lead_time_for_changes(self, days=30):
        """Время от коммита до деплоя"""
        # Получаем PR за период
        url = f"https://api.github.com/repos/{self.repo_owner}/{self.repo_name}/pulls"
        params = {"state": "closed", "per_page": 100}
        
        response = requests.get(url, headers=self.headers, params=params)
        pull_requests = response.json()
        
        lead_times = []
        for pr in pull_requests:
            if pr.get('merged_at'):
                created = datetime.fromisoformat(pr['created_at'].replace('Z', '+00:00'))
                merged = datetime.fromisoformat(pr['merged_at'].replace('Z', '+00:00'))
                lead_time = (merged - created).total_seconds() / 3600 # в часах
                lead_times.append(lead_time)
        
        if lead_times:
            return {
                "average_lead_time_hours": sum(lead_times) / len(lead_times),
                "median_lead_time_hours": sorted(lead_times)[len(lead_times) // 2],
                "total_prs": len(lead_times)
            }
        return {"error": "No merged PRs found"}

    def change_failure_rate(self, days=30):
        """Процент неудачных деплоев"""
        url = f"https://api.github.com/repos/{self.repo_owner}/{self.repo_name}/deployments"
        response = requests.get(url, headers=self.headers)
        deployments = response.json()
        
        failed_deployments = 0
        total_deployments = len(deployments)
        
        for deployment in deployments:
            status_url = f"https://api.github.com/repos/{self.repo_owner}/{self.repo_name}/deployments/{deployment['id']}/statuses"
            status_response = requests.get(status_url, headers=self.headers)
            statuses = status_response.json()
            
            if statuses and statuses[0].get('state') in ['failure', 'error']:
                failed_deployments += 1
        
        failure_rate = (failed_deployments / total_deployments * 100) if total_deployments > 0 else 0
        
        return {
            "failure_rate_percent": failure_rate,
            "failed_deployments": failed_deployments,
            "total_deployments": total_deployments
        }

if __name__ == "__main__":
    metrics = DORAMetrics("your-org", "your-repo", os.getenv("GITHUB_TOKEN"))
    
    print("=== DORA Metrics Report ===")
    print(f"Deployment Frequency: {metrics.deployment_frequency()}")
    print(f"Lead Time: {metrics.lead_time_for_changes()}")
    print(f"Change Failure Rate: {metrics.change_failure_rate()}")