[script] Script for querying all reports

This script can query all reports for all products from a CodeChecker
server.

scripts/query_all_reports.py

@@ -0,0 +1,117 @@
+import argparse
+import functools
+import json
+import os
+import subprocess
+import sys
+from multiprocess import Pool
+from pathlib import Path
+from typing import List, Tuple
+
+
+def parse_args():
+    """
+    Initialize global variables based on command line arguments. These
+    variables are global because get_results() uses them. That function is used
+    as a callback which doesn't get this info as parameters.
+    """
+    parser = argparse.ArgumentParser(
+        description="Fetch all reports of products")
+
+    parser.add_argument(
+        '--url',
+        default='localhost:8001',
+        help='URL of a CodeChecker server.')
+
+    parser.add_argument(
+        '--output',
+        required=True,
+        help='Output folder for generated JSON files.')
+
+    parser.add_argument(
+        '-j', '--jobs',
+        default=1,
+        type=int,
+        help='Get reports in this many parallel jobs.')
+
+    parser.add_argument(
+        '--products',
+        nargs='+',
+        help='List of products to fetch reports for. By default, all products '
+             'are fetched.')
+
+    return parser.parse_args()
+
+
+def __get_keys_from_list(out) -> List[str]:
+    """
+    Get all keys from a JSON list.
+    """
+    return map(lambda prod: next(iter(prod.keys())), json.loads(out))
+
+
+def result_getter(args: argparse.Namespace):
+    def get_results(product_run: Tuple[str, str]):
+        product, run = product_run
+        print(product, run)
+
+        out, _ = subprocess.Popen([
+                'CodeChecker', 'cmd', 'results', run,
+                '-o', 'json',
+                '--url', f'{args.url}/{product}'],
+            stdout=subprocess.PIPE,
+            stderr=subprocess.PIPE).communicate()
+
+        reports = sorted(
+            json.loads(out), key=lambda report: report['reportId'])
+
+        run = run.replace('/', '_')
+        with open(Path(args.output) / f'{product}_{run}.json', 'w',
+                  encoding='utf-8') as f:
+            json.dump(reports, f)
+
+    return get_results
+
+
+def get_all_products(url: str) -> List[str]:
+    """
+    Get all products from a CodeChecker server.
+
+    :param url: URL of a CodeChecker server.
+    :return: List of product names.
+    """
+    out, _ = subprocess.Popen(
+        ['CodeChecker', 'cmd', 'products', 'list', '-o', 'json', '--url', url],
+        stdout=subprocess.PIPE,
+        stderr=subprocess.DEVNULL).communicate()
+
+    return __get_keys_from_list(out)
+
+
+def main():
+    args = parse_args()
+
+    os.makedirs(args.output, exist_ok=True)
+
+    if not args.products:
+        args.products = get_all_products(args.url)
+
+    for product in args.products:
+        f = functools.partial(lambda p, r: (p, r), product)
+        with subprocess.Popen([
+                'CodeChecker', 'cmd', 'runs',
+                '--url', f'{args.url}/{product}',
+                '-o', 'json'],
+            stdout=subprocess.PIPE,
+            stderr=subprocess.PIPE
+        ) as proc:
+            runs = list(__get_keys_from_list(proc.stdout.read()))
+
+            with Pool(args.jobs) as p:
+                p.map(result_getter(args), map(f, runs))
+
+    return 0
+
+
+if __name__ == '__main__':
+    sys.exit(main())