79da079239
This commit also converts our own copyright headers to directly use SPDX, but leaves all other copyright header intact, only adding the SPDX ident. As far as possible this commit also merges multiple Data61 copyright statements/headers into one for consistency.
74 lines
1.9 KiB
Python
Executable file
74 lines
1.9 KiB
Python
Executable file
#!/usr/bin/env python3
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#
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# Copyright 2020, Data61, CSIRO (ABN 41 687 119 230)
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#
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# SPDX-License-Identifier: BSD-2-Clause
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#
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"""
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Script for reporting circular #includes in pre-processed sel4 source.
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Exits with a status of 0 if no circular dependencies are found, otherwise
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prints circular dependency and exits with a status of -1.
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"""
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import sys
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import re
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import argparse
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def main(parse_args):
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"""
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Reads pre-processed sel4 source from standard input.
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If a circular dependency is found, the chain of includes
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resulting in the loop is printed out.
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"""
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ignore_re = None
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ignore_args = parse_args.ignore
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if ignore_args and len(ignore_args):
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ignore_args = [re.escape(ignore) for ignore in ignore_args]
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ignore_re_string = '(' + '|'.join(ignore_args) + ')'
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ignore_re = re.compile(r'^# 1 ".*' + ignore_re_string + '"')
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header_re = re.compile(r'^# (\d+) "(.*\..)"')
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file_stack = []
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for line in sys.stdin:
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if ignore_re and ignore_re.match(line):
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continue
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match = header_re.match(line)
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if match is None:
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continue
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depth = int(match.group(1))
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header = match.group(2)
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if depth == 1:
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# found a new header
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if header in file_stack:
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print("Circular includes found:")
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print("\n".join(file_stack))
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print(header)
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return -1
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else:
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file_stack.append(header)
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else:
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# popped back up to an earlier header
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while file_stack[-1] != header:
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file_stack.pop()
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return 0
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if __name__ == "__main__":
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parser = argparse.ArgumentParser()
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parser.add_argument('--ignore', nargs='+',
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help="Files to ignore when parsing the sel4 source")
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args = parser.parse_args()
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sys.exit(main(args))
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