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88 lines
2.5 KiB
Python
Executable File
88 lines
2.5 KiB
Python
Executable File
#!/usr/bin/env python
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"""Script to sort the top-most block of #include lines.
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Assumes the LLVM coding conventions.
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Currently, this script only bothers sorting the llvm/... headers. Patches
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welcome for more functionality, and sorting other header groups.
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"""
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import argparse
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import os
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def sort_includes(f):
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"""Sort the #include lines of a specific file."""
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# Skip files which are under INPUTS trees or test trees.
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if 'INPUTS/' in f.name or 'test/' in f.name:
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return
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ext = os.path.splitext(f.name)[1]
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if ext not in ['.cpp', '.c', '.h', '.inc', '.def']:
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return
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lines = f.readlines()
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look_for_api_header = ext in ['.cpp', '.c']
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found_headers = False
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headers_begin = 0
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headers_end = 0
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api_headers = []
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local_headers = []
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project_headers = []
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system_headers = []
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for (i, l) in enumerate(lines):
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if l.strip() == '':
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continue
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if l.startswith('#include'):
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if not found_headers:
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headers_begin = i
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found_headers = True
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headers_end = i
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header = l[len('#include'):].lstrip()
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if look_for_api_header and header.startswith('"'):
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api_headers.append(header)
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look_for_api_header = False
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continue
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if header.startswith('<') or header.startswith('"gtest/'):
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system_headers.append(header)
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continue
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if (header.startswith('"llvm/') or header.startswith('"llvm-c/') or
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header.startswith('"clang/') or header.startswith('"clang-c/')):
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project_headers.append(header)
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continue
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local_headers.append(header)
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continue
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# Only allow comments and #defines prior to any includes. If either are
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# mixed with includes, the order might be sensitive.
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if found_headers:
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break
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if l.startswith('//') or l.startswith('#define') or l.startswith('#ifndef'):
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continue
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break
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if not found_headers:
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return
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local_headers = sorted(set(local_headers))
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project_headers = sorted(set(project_headers))
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system_headers = sorted(set(system_headers))
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headers = api_headers + local_headers + project_headers + system_headers
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header_lines = ['#include ' + h for h in headers]
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lines = lines[:headers_begin] + header_lines + lines[headers_end + 1:]
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f.seek(0)
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f.truncate()
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f.writelines(lines)
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def main():
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parser = argparse.ArgumentParser(description=__doc__)
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parser.add_argument('files', nargs='+', type=argparse.FileType('r+'),
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help='the source files to sort includes within')
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args = parser.parse_args()
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for f in args.files:
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sort_includes(f)
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if __name__ == '__main__':
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main()
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