1 files changed, 127 insertions, 0 deletions
diff --git a/util/cmake/cmakeconversionrate.py b/util/cmake/cmakeconversionrate.py
new file mode 100755
index 0000000000..3496ed1b91
--- /dev/null
+++ b/util/cmake/cmakeconversionrate.py
@@ -0,0 +1,127 @@
+#!/usr/bin/env python3
+#############################################################################
+##
+## Copyright (C) 2018 The Qt Company Ltd.
+## Contact: https://www.qt.io/licensing/
+##
+## This file is part of the plugins of the Qt Toolkit.
+##
+## $QT_BEGIN_LICENSE:GPL-EXCEPT$
+## Commercial License Usage
+## Licensees holding valid commercial Qt licenses may use this file in
+## accordance with the commercial license agreement provided with the
+## Software or, alternatively, in accordance with the terms contained in
+## a written agreement between you and The Qt Company. For licensing terms
+## and conditions see https://www.qt.io/terms-conditions. For further
+## information use the contact form at https://www.qt.io/contact-us.
+##
+## GNU General Public License Usage
+## Alternatively, this file may be used under the terms of the GNU
+## General Public License version 3 as published by the Free Software
+## Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
+## included in the packaging of this file. Please review the following
+## information to ensure the GNU General Public License requirements will
+## be met: https://www.gnu.org/licenses/gpl-3.0.html.
+##
+## $QT_END_LICENSE$
+##
+#############################################################################
+
+from argparse import ArgumentParser
+
+import os
+import re
+import subprocess
+import sys
+import typing
+
+
+def _parse_commandline():
+    parser = ArgumentParser(description='Calculate the conversion rate to cmake.')
+    parser.add_argument('--debug', dest='debug', action='store_true',
+                        help='Turn on debug output')
+    parser.add_argument('source_directory', metavar='<Source Directory>', type=str,
+                        help='The Qt module source directory')
+    parser.add_argument('binary_directory', metavar='<CMake build direcotry>', type=str,
+                        help='The CMake build directory (might be empty)')
+
+    return parser.parse_args()
+
+
+def calculate_baseline(source_directory: str, *, debug: bool=False) -> int:
+    if debug:
+        print('Scanning "{}" for qmake-based tests.'.format(source_directory))
+    result = subprocess.run('/usr/bin/git grep -E "^\\s*CONFIG\\s*\\+?=.*\\btestcase\\b" | sort -u | wc -l',
+        shell=True, capture_output=True, cwd=source_directory)
+    return int(result.stdout)
+
+
+def build(source_directory: str, binary_directory: str, *, debug=False) -> None:
+    abs_source = os.path.abspath(source_directory)
+    if not os.path.isdir(binary_directory):
+        os.makedirs(binary_directory)
+    if not os.path.exists(os.path.join(binary_directory, 'CMakeCache.txt')):
+
+        if debug:
+            print('Running cmake in "{}".'.format(binary_directory))
+        result = subprocess.run(['/usr/bin/cmake', '-GNinja', abs_source], cwd=binary_directory)
+        if debug:
+            print('CMake return code: {}.'.format(result.returncode))
+
+        assert result.returncode == 0
+
+    if debug:
+        print('Running ninja in "{}".'.format(binary_directory))
+    result = subprocess.run('/usr/bin/ninja', cwd=binary_directory)
+    if debug:
+        print('Ninja return code: {}.'.format(result.returncode))
+
+    assert result.returncode == 0
+
+
+def test(binary_directory: str, *, debug=False) -> typing.Tuple[int, int]:
+    if debug:
+        print('Running ctest in "{}".'.format(binary_directory))
+    result = subprocess.run('/usr/bin/ctest -j 250 | grep "tests passed, "',
+                            shell=True, capture_output=True, cwd=binary_directory)
+    summary = result.stdout.decode('utf-8').replace('\n', '')
+    if debug:
+        print('Test summary: {} ({}).'.format(summary, result.returncode))
+
+    matches = re.fullmatch(r'\d+% tests passed, (\d+) tests failed out of (\d+)', summary)
+    if matches:
+        if debug:
+            print('Matches: failed {}, total {}.'.format(matches.group(1), matches.group(2)))
+        return (int(matches.group(2)), int(matches.group(2)) - int(matches.group(1)), )
+
+    return (0, 0,)
+
+
+def main() -> int:
+    args = _parse_commandline()
+
+    base_line = calculate_baseline(args.source_directory, debug=args.debug)
+    if base_line <= 0:
+        print('Could not find the qmake baseline in {}.'.format(args.source_directory))
+        return 1
+
+    if args.debug:
+        print('qmake baseline: {} test binaries.'.format(base_line))
+
+    cmake_total = 0
+    cmake_success = 0
+    try:
+        build(args.source_directory, args.binary_directory, debug=args.debug)
+        (cmake_total, cmake_success, ) = test(args.binary_directory, debug=args.debug)
+    finally:
+        if cmake_total == 0:
+            print('\n\n\nCould not calculate the cmake state.')
+            return 2
+        else:
+            print('\n\n\nCMake test conversion rate: {:.2%}.'.format(cmake_total / base_line))
+            print('CMake test success rate   : {:.2%}.'.format(cmake_success / base_line))
+            return 0
+
+
+if __name__ == '__main__':
+    main()