Update Sun Schedule #265
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| name: "Update Sun Schedule" | |
| on: | |
| schedule: | |
| # Run once daily at 02:00 UTC (3 AM Oslo time in winter) | |
| - cron: "0 2 * * *" | |
| workflow_dispatch: # Manual trigger for testing | |
| jobs: | |
| update-schedule: | |
| runs-on: ubuntu-latest | |
| timeout-minutes: 5 | |
| steps: | |
| - name: Checkout repository | |
| uses: actions/checkout@v4 | |
| with: | |
| token: ${{ secrets.PAT_TOKEN }} | |
| - name: Set up Python 3.11 | |
| uses: actions/setup-python@v4 | |
| with: | |
| python-version: '3.11' | |
| - name: Install dependencies | |
| run: | | |
| python -m pip install --upgrade pip | |
| pip install requests PyYAML | |
| - name: Fetch sun times and update schedule | |
| run: | | |
| python3 << 'EOF' | |
| import json | |
| import requests | |
| from datetime import datetime, time | |
| # Load configuration | |
| with open('config.json', 'r') as f: | |
| config = json.load(f) | |
| # Fetch sun times | |
| LAT = config['location']['latitude'] | |
| LNG = config['location']['longitude'] | |
| url = config['api']['sunrise_sunset_url'].format(lat=LAT, lng=LNG) | |
| response = requests.get(url, timeout=15) | |
| response.raise_for_status() | |
| data = response.json() | |
| if data.get("status") != "OK": | |
| raise Exception(f"API returned status: {data.get('status')}") | |
| results = data["results"] | |
| # Parse times (ISO format from API when formatted=0) | |
| def parse_time(time_str): | |
| """Extract hour and minute from ISO datetime string""" | |
| dt = datetime.fromisoformat(time_str.replace('Z', '+00:00')) | |
| return dt.hour, dt.minute | |
| # Get astronomical twilight times (darkest) | |
| twilight_end_h, twilight_end_m = parse_time(results["astronomical_twilight_end"]) | |
| twilight_begin_h, twilight_begin_m = parse_time(results["astronomical_twilight_begin"]) | |
| # Generate cron schedule for dark hours | |
| # Run every 15 minutes during astronomical darkness | |
| # Cron format: minute hour * * * | |
| # If twilight_end is 17:44:59 (5:44 PM), start at 18:00 | |
| # If twilight_begin is 4:18:25 AM, end at 4:00 AM | |
| start_hour = twilight_end_h + 1 if twilight_end_m > 30 else twilight_end_h | |
| end_hour = twilight_begin_h | |
| # Handle case where darkness spans midnight | |
| if start_hour >= end_hour: | |
| # Example: 18:00-23:59 and 00:00-04:00 | |
| cron_evening = f"*/15 {start_hour}-23 * * *" | |
| cron_morning = f"*/15 0-{end_hour} * * *" if end_hour > 0 else None | |
| cron_schedule = [cron_evening] | |
| if cron_morning: | |
| cron_schedule.append(cron_morning) | |
| else: | |
| # Continuous dark period (rare in Lommedalen) | |
| cron_schedule = [f"*/15 {start_hour}-{end_hour} * * *"] | |
| # Save schedule info | |
| schedule_info = { | |
| "updated_at": datetime.utcnow().isoformat() + "Z", | |
| "location": config['location'], | |
| "sun_times": results, | |
| "dark_hours": { | |
| "start_hour": start_hour, | |
| "end_hour": end_hour, | |
| "spans_midnight": start_hour >= end_hour | |
| }, | |
| "cron_schedules": cron_schedule | |
| } | |
| schedule_file = config['data']['sun_schedule_file'] | |
| with open(schedule_file, 'w') as f: | |
| json.dump(schedule_info, f, indent=2) | |
| print(f"✅ Updated sun schedule") | |
| print(f" Astronomical darkness: {start_hour}:00 - {end_hour}:00 UTC") | |
| print(f" Cron schedules: {', '.join(cron_schedule)}") | |
| EOF | |
| - name: Update workflow schedule | |
| run: | | |
| python3 << 'EOF' | |
| import json | |
| import re | |
| # Load config | |
| with open('config.json', 'r') as f: | |
| config = json.load(f) | |
| # Load schedule info | |
| schedule_file = config['data']['sun_schedule_file'] | |
| with open(schedule_file, 'r') as f: | |
| schedule_info = json.load(f) | |
| cron_schedules = schedule_info['cron_schedules'] | |
| # Read the workflow file | |
| with open('.github/workflows/post.yml', 'r') as f: | |
| content = f.read() | |
| # Find and replace the schedule section using regex | |
| # This preserves comments and formatting | |
| schedule_pattern = r'(on:\s*\n\s+schedule:\s*\n(?:\s+#[^\n]*\n)*)((?:\s+-\s+cron:\s+[^\n]+\n)+)' | |
| # Build new schedule lines | |
| new_schedule_lines = [] | |
| for cron in cron_schedules: | |
| new_schedule_lines.append(f' - cron: "{cron}"\n') | |
| new_schedule_section = ''.join(new_schedule_lines) | |
| # Replace the schedule section | |
| def replacer(match): | |
| return match.group(1) + new_schedule_section | |
| updated_content = re.sub(schedule_pattern, replacer, content) | |
| # Write back | |
| with open('.github/workflows/post.yml', 'w') as f: | |
| f.write(updated_content) | |
| print(f"✅ Updated post.yml with {len(cron_schedules)} cron schedule(s)") | |
| print(f" Schedules: {', '.join(cron_schedules)}") | |
| EOF | |
| - name: Commit and push changes | |
| run: | | |
| git config user.name "github-actions[bot]" | |
| git config user.email "github-actions[bot]@users.noreply.github.com" | |
| # Get schedule file from config | |
| SCHEDULE_FILE=$(jq -r '.data.sun_schedule_file' config.json) | |
| git add "$SCHEDULE_FILE" .github/workflows/post.yml | |
| if git diff --staged --quiet; then | |
| echo "No changes to commit" | |
| else | |
| START_HOUR=$(jq -r '.dark_hours.start_hour' "$SCHEDULE_FILE") | |
| END_HOUR=$(jq -r '.dark_hours.end_hour' "$SCHEDULE_FILE") | |
| UPDATED_AT=$(jq -r '.updated_at' "$SCHEDULE_FILE") | |
| CRON_SCHEDULES=$(jq -r '.cron_schedules | join(", ")' "$SCHEDULE_FILE") | |
| git commit -m "chore: update sun schedule and workflow timing [automated]" \ | |
| -m "Dark hours: ${START_HOUR}:00 - ${END_HOUR}:00 UTC" \ | |
| -m "Cron: ${CRON_SCHEDULES}" \ | |
| -m "Updated: ${UPDATED_AT}" | |
| git push | |
| fi |