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#!/usr/bin/env python
"""Download artifacts from GitHub Actions workflow runs for given run IDs."""
import argparse
import json
import os
import subprocess
import sys
from pathlib import Path
def get_artifacts_for_run(run_id, repo, token):
"""
Get list of artifacts for a workflow run.
Args:
run_id: Workflow run ID
repo: Repository in format 'owner/repo'
token: GitHub token for API authentication
Returns:
List of artifact dictionaries with 'name' and 'id'
"""
print(f"Fetching artifacts for run ID {run_id}", file=sys.stderr)
env = os.environ.copy()
env['GH_TOKEN'] = token
try:
result = subprocess.run(
[
"gh", "api",
"-H", "Accept: application/vnd.github+json",
"-H", "X-GitHub-Api-Version: 2022-11-28",
f"/repos/{repo}/actions/runs/{run_id}/artifacts",
"--jq", '.artifacts[] | {name: .name, id: .id}'
],
capture_output=True,
text=True,
check=True,
env=env
)
artifacts = []
for line in result.stdout.strip().split('\n'):
if line:
artifacts.append(json.loads(line))
print(f"Found {len(artifacts)} artifacts for run {run_id}", file=sys.stderr)
return artifacts
except subprocess.CalledProcessError as e:
print(f"ERROR: Failed to fetch artifacts: {e}", file=sys.stderr)
print(f"stderr: {e.stderr}", file=sys.stderr)
return []
def download_artifact(artifact_name, artifact_id, repo, token, output_dir):
"""
Download a single artifact and extract directly to output_dir.
Args:
artifact_name: Name of the artifact
artifact_id: Artifact ID
repo: Repository in format 'owner/repo'
token: GitHub token for API authentication
output_dir: Directory to download artifact to
Returns:
True if successful, False otherwise
"""
print(f"Downloading artifact: {artifact_name}", file=sys.stderr)
output_path = Path(output_dir)
output_path.mkdir(parents=True, exist_ok=True)
env = os.environ.copy()
env['GH_TOKEN'] = token
try:
# Use gh CLI to download artifact
zip_path = output_path / f"{artifact_name}.zip"
result = subprocess.run(
[
"gh", "api",
"-H", "Accept: application/vnd.github+json",
"-H", "X-GitHub-Api-Version: 2022-11-28",
f"/repos/{repo}/actions/artifacts/{artifact_id}/zip"
],
check=True,
env=env,
capture_output=True
)
# Write the binary output to file
with open(zip_path, 'wb') as f:
f.write(result.stdout)
# Unzip artifact directly to output_dir (flat structure)
subprocess.run(
["unzip", "-q", "-o", str(zip_path), "-d", str(output_path)],
check=True
)
# Remove the zip file
zip_path.unlink()
print(f"Successfully downloaded: {artifact_name}", file=sys.stderr)
return True
except subprocess.CalledProcessError as e:
print(f"ERROR: Failed to download {artifact_name}: {e}", file=sys.stderr)
if e.stderr:
print(f"stderr: {e.stderr}", file=sys.stderr)
if e.stdout:
print(f"stdout: {e.stdout}", file=sys.stderr)
return False
def main():
parser = argparse.ArgumentParser(
description='Download artifacts from workflow runs'
)
parser.add_argument(
'--run-ids',
nargs='+',
required=True,
help='List of workflow run IDs to download artifacts from'
)
parser.add_argument(
'--repo',
default=os.environ.get('GITHUB_REPOSITORY', ''),
help='Repository in format owner/repo (default: GITHUB_REPOSITORY env var)'
)
parser.add_argument(
'--token',
default=os.environ.get('GH_TOKEN', os.environ.get('GITHUB_TOKEN', '')),
help='GitHub token for API authentication (default: GH_TOKEN or GITHUB_TOKEN env var)'
)
parser.add_argument(
'--output-dir',
required=True,
help='Output directory for artifacts'
)
args = parser.parse_args()
if not args.repo:
parser.error("Repository is required (via --repo or GITHUB_REPOSITORY env var)")
if not args.token:
parser.error("GitHub token is required (via --token or GH_TOKEN/GITHUB_TOKEN env var)")
print(f"=== Downloading artifacts from {len(args.run_ids)} workflow runs ===", file=sys.stderr)
for run_id in args.run_ids:
print(f"\n--- Processing run ID: {run_id} ---", file=sys.stderr)
artifacts = get_artifacts_for_run(run_id, args.repo, args.token)
if not artifacts:
print(f"\nERROR: No artifacts found for run ID {run_id}", file=sys.stderr)
sys.exit(1)
for artifact in artifacts:
success = download_artifact(
artifact['name'],
artifact['id'],
args.repo,
args.token,
args.output_dir
)
if not success:
print(f"\nERROR: Failed to download artifact '{artifact['name']}'", file=sys.stderr)
sys.exit(1)
print(f"\n All artifacts downloaded successfully", file=sys.stderr)
if __name__ == "__main__":
main()
|
