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In pch-bridging-header-deps test, the PathSanitizingFileCheck is used to check against YAML escaped paths. This works for Unix paths, since the slash doesn't need to be escaped, but doesn't work for Windows paths, because the path separator is escaped, and the replacement done by PathSanitizingFileCheck only looks for exact matches. To avoid changes in how Darwin/Linux execute the tests, this commit adds two options in PathSanitizingFileCheck: Windows compatibility makes the given paths match both forward and backward slashes; in the additional YAML compatibility is enabled, escaped backward slashes will also be matched. The Windows compatibility is enabled for all the test in case the tests are running on Windows (change done in lit.cfg), while the YAML compatibility is only enabled for those tests that might need it (like the PCH bridging header one). This is in order to not allow possible empty path components in tests that do not deal with YAML escaped paths.
89 lines
2.9 KiB
Python
Executable File
89 lines
2.9 KiB
Python
Executable File
#!/usr/bin/env python
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# utils/PathSanitizingFileCheck -*- python -*-
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#
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# This source file is part of the Swift.org open source project
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#
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# Copyright (c) 2014 - 2017 Apple Inc. and the Swift project authors
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# Licensed under Apache License v2.0 with Runtime Library Exception
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#
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# See https://swift.org/LICENSE.txt for license information
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# See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
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from __future__ import print_function
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import argparse
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import re
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import subprocess
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import sys
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def main():
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parser = argparse.ArgumentParser(
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formatter_class=argparse.RawDescriptionHelpFormatter,
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description="""
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PathSanitizingFileCheck is a wrapper around LLVM's FileCheck. In addition
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to all FileCheck features, PathSanitizingFileCheck can replace given
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strings in the input with other strings. This feature is used to replace
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paths to the source and build directories with path-independent
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constants.""")
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parser.add_argument(
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"--sanitize",
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help="replace the given string with another string",
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metavar="REPLACEMENT=SOURCE",
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action="append",
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dest="sanitize_strings",
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default=[])
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parser.add_argument(
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"--use-filecheck",
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help="path to LLVM FileCheck executable",
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metavar="PATH",
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action="store",
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dest="file_check_path",
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default="FileCheck")
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parser.add_argument(
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"--enable-windows-compatibility",
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help="Enable Windows path compatibility, which checks against both "
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"forward slashes and backward slashes.",
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action="store_true")
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parser.add_argument(
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"--enable-yaml-compatibility",
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help="Enable YAML path compatibility. Since YAML double escapes "
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"backward slashes, we need to check for them escaped. Only "
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"available if Windows compatibility is enabled.",
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action="store_true")
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args, unknown_args = parser.parse_known_args()
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if args.enable_windows_compatibility:
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if args.enable_yaml_compatibility:
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slashes_re = r'(/|\\\\|\\\\\\\\)'
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else:
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slashes_re = r'(/|\\\\)'
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else:
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slashes_re = r'/'
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stdin = sys.stdin.read()
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for s in args.sanitize_strings:
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replacement, pattern = s.split('=', 1)
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# We are replacing the Unix path separators in the paths passed as
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# arguments with a broader pattern to also allow forward slashes and
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# double escaped slashes in the result that we are checking. Sigh.
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stdin = re.sub(re.sub(r'/', slashes_re, pattern), replacement, stdin)
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p = subprocess.Popen(
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[args.file_check_path] + unknown_args, stdin=subprocess.PIPE)
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stdout, stderr = p.communicate(stdin)
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if stdout is not None:
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print(stdout)
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if stderr is not None:
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print(stderr, file=sys.stderr)
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return p.wait()
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if __name__ == '__main__':
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exit(main())
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