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GitOrigin-RevId: 6370f6ea785709295b6abcf9c60717cacf3ac432
103 lines
3 KiB
Python
103 lines
3 KiB
Python
import yaml
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import json
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import requests
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import sys
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import os
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from urllib.parse import urljoin
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def load_yaml(path):
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with open(path, 'r') as f:
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return yaml.safe_load(f)
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def fetch_index(repo_url):
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index_url = urljoin(repo_url + '/', 'index.yaml')
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print(f"Fetching index from {index_url}...")
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try:
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r = requests.get(index_url)
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r.raise_for_status()
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return yaml.safe_load(r.text)
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except Exception as e:
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print(f"Error fetching {index_url}: {e}")
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return None
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def main():
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if len(sys.argv) < 2:
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print("Usage: python helm_sync.py <path_to_chartfile.yaml> [output_lock_file]")
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sys.exit(1)
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chartfile_path = sys.argv[1]
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lockfile_path = sys.argv[2] if len(sys.argv) > 2 else chartfile_path.replace('.yaml', '.lock.json')
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print(f"Reading {chartfile_path}...")
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chartfile = load_yaml(chartfile_path)
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repos = {r['name']: r['url'] for r in chartfile.get('repositories', [])}
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indices = {}
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lock_data = {"charts": {}}
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for req in chartfile.get('requires', []):
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chart_ref = req['chart']
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version = req['version']
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if '/' not in chart_ref:
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print(f"Invalid chart reference: {chart_ref}. Expected repo/name.")
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continue
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repo_name, chart_name = chart_ref.split('/', 1)
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if repo_name not in repos:
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print(f"Repository '{repo_name}' not found for chart {chart_ref}")
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continue
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repo_url = repos[repo_name]
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if repo_name not in indices:
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indices[repo_name] = fetch_index(repo_url)
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index = indices[repo_name]
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if not index:
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print(f"Skipping {chart_ref} due to missing index.")
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continue
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entries = index.get('entries', {}).get(chart_name, [])
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# Find exact version
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matched_entry = None
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for entry in entries:
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if entry['version'] == version:
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matched_entry = entry
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break
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if not matched_entry:
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print(f"Version {version} not found for chart {chart_ref}")
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continue
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# Resolve URL
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urls = matched_entry.get('urls', [])
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if not urls:
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print(f"No URLs found for {chart_ref} version {version}")
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continue
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# URL can be relative or absolute
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chart_url = urls[0]
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if not chart_url.startswith('http'):
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chart_url = urljoin(repo_url + '/', chart_url)
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digest = matched_entry.get('digest')
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print(f"Resolved {chart_ref} {version} -> {chart_url}")
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lock_data["charts"][chart_ref] = {
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"version": version,
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"url": chart_url,
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"digest": digest
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}
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print(f"Writing lockfile to {lockfile_path}...")
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with open(lockfile_path, 'w') as f:
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json.dump(lock_data, f, indent=2, sort_keys=True)
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f.write('\n')
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if __name__ == "__main__":
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main()
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