[PATCH v4] kunit: tool: add ability to parse multiple files

From: Rae Moar
Date: Mon Mar 18 2024 - 17:27:55 EST


Add ability to parse multiple files. Additionally add the
ability to parse all results in the KUnit debugfs repository.

How to parse multiple files:

/tools/testing/kunit/kunit.py parse results.log results2.log

How to parse all files in directory:

/tools/testing/kunit/kunit.py parse directory_path/*

How to parse KUnit debugfs repository:

/tools/testing/kunit/kunit.py parse debugfs

For each file, the parser outputs the file name, results, and test
summary. At the end of all parsing, the parser outputs a total summary
line.

This feature can be easily tested on the tools/testing/kunit/test_data/
directory.

Signed-off-by: Rae Moar <rmoar@xxxxxxxxxx>
---
Changes since v3:
- Changing from input() to stdin
- Add checking for non-regular files
- Spacing fix
- Small printing fix

tools/testing/kunit/kunit.py | 54 +++++++++++++++++++++++++-----------
1 file changed, 38 insertions(+), 16 deletions(-)

diff --git a/tools/testing/kunit/kunit.py b/tools/testing/kunit/kunit.py
index bc74088c458a..641b8ca83e3e 100755
--- a/tools/testing/kunit/kunit.py
+++ b/tools/testing/kunit/kunit.py
@@ -511,19 +511,40 @@ def exec_handler(cli_args: argparse.Namespace) -> None:


def parse_handler(cli_args: argparse.Namespace) -> None:
- if cli_args.file is None:
- sys.stdin.reconfigure(errors='backslashreplace') # type: ignore
- kunit_output = sys.stdin # type: Iterable[str]
- else:
- with open(cli_args.file, 'r', errors='backslashreplace') as f:
- kunit_output = f.read().splitlines()
- # We know nothing about how the result was created!
- metadata = kunit_json.Metadata()
- request = KunitParseRequest(raw_output=cli_args.raw_output,
- json=cli_args.json)
- result, _ = parse_tests(request, metadata, kunit_output)
- if result.status != KunitStatus.SUCCESS:
- sys.exit(1)
+ parsed_files = cli_args.files # type: List[str]
+ total_test = kunit_parser.Test()
+ total_test.status = kunit_parser.TestStatus.SUCCESS
+ if not parsed_files:
+ parsed_files.append('/dev/stdin')
+ elif len(parsed_files) == 1 and parsed_files[0] == "debugfs":
+ parsed_files.pop()
+ for (root, _, files) in os.walk("/sys/kernel/debug/kunit"):
+ parsed_files.extend(os.path.join(root, f) for f in files if f == "results")
+ if not parsed_files:
+ print("No files found.")
+
+ for file in parsed_files:
+ if os.path.isdir(file):
+ print(f'Ignoring directory "{file}"')
+ elif os.path.exists(file):
+ print(file)
+ with open(file, 'r', errors='backslashreplace') as f:
+ kunit_output = f.read().splitlines()
+ # We know nothing about how the result was created!
+ metadata = kunit_json.Metadata()
+ request = KunitParseRequest(raw_output=cli_args.raw_output,
+ json=cli_args.json)
+ _, test = parse_tests(request, metadata, kunit_output)
+ total_test.subtests.append(test)
+ else:
+ print(f'Could not find "{file}"')
+
+ if len(parsed_files) > 1: # if more than one file was parsed output total summary
+ print('All files parsed.')
+ if not request.raw_output:
+ stdout.print_with_timestamp(kunit_parser.DIVIDER)
+ kunit_parser.bubble_up_test_results(total_test)
+ kunit_parser.print_summary_line(total_test)


subcommand_handlers_map = {
@@ -569,9 +590,10 @@ def main(argv: Sequence[str]) -> None:
help='Parses KUnit results from a file, '
'and parses formatted results.')
add_parse_opts(parse_parser)
- parse_parser.add_argument('file',
- help='Specifies the file to read results from.',
- type=str, nargs='?', metavar='input_file')
+ parse_parser.add_argument('files',
+ help='List of file paths to read results from or keyword'
+ '"debugfs" to read all results from the debugfs directory.',
+ type=str, nargs='*', metavar='input_files')

cli_args = parser.parse_args(massage_argv(argv))


base-commit: 806cb2270237ce2ec672a407d66cee17a07d3aa2
--
2.44.0.291.gc1ea87d7ee-goog