teak-llvm/llvm/utils/sort_includes.py
Chandler Carruth 2aa2a9bf2b Teach the include sorter to skip files under test trees and under INPUTS
trees. This allows running the input sorter on the entire clang
repository cleanly now.

llvm-svn: 169247
2012-12-04 09:59:54 +00:00

84 lines
2.4 KiB
Python
Executable File

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