Created
August 24, 2019 13:00
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Fix case of filenames in #include statements in C/C++ source code
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| #!/usr/bin/python | |
| import sys, re, os, fnmatch, collections, string, chardet | |
| REGEX_INCLUDE_FILE = re.compile(r"\s*(?:#include\s*\"([^\"]+)\")|\s*(?:#include\s*\<([^\"]+)\>)") | |
| def fixcase(path): | |
| (dirname, filename) = os.path.split(path) | |
| if dirname and filename: | |
| try: | |
| fixed_filename = [f for f in os.listdir(dirname) if f.lower() == filename.lower()][0] | |
| return os.path.join(fixcase(dirname), fixed_filename) | |
| except: | |
| print("ERROR ", path, dirname, filename) | |
| else: | |
| return filename or dirname | |
| def find_in_paths(include, include_paths): | |
| for include_path in include_paths: | |
| full_path = os.path.abspath(os.path.join(include_path, include)) | |
| if os.path.exists(full_path): | |
| fixed_case = fixcase(full_path) | |
| return os.path.relpath(fixed_case, include_path).replace('\\','/') | |
| return None | |
| def fix_include_case(source_file, include_paths): | |
| source_dir = os.path.dirname(source_file) | |
| include_paths_with_local = include_paths + [source_dir] | |
| e = chardet.detect(open(source_file, 'rb').read())['encoding'] | |
| with open(source_file, 'r', encoding=e) as f: | |
| try: | |
| lines = f.readlines() | |
| except: | |
| print("ERROR reading file ", source_file, e) | |
| raise | |
| changed = False | |
| for ln in range(len(lines)): | |
| line = lines[ln] | |
| match = REGEX_INCLUDE_FILE.match(line) | |
| if match: | |
| include = match.group(1) or match.group(2) | |
| (left_delim, right_delim) = ('"', '"') if match.group(1) else ('<', '>') | |
| found = find_in_paths(include, include_paths_with_local) | |
| if found and found != include: | |
| if not changed: | |
| print(source_file) | |
| changed = True | |
| newline = "#include " + left_delim + found + right_delim + "\n" | |
| print(line + " ==> " + newline) | |
| lines[ln] = newline | |
| if changed: | |
| with open(source_file, 'w', encoding=e) as f: | |
| for line in lines: | |
| f.write(line) | |
| def main(argv): | |
| if len(argv) < 2: | |
| print("Usage: " + argv[0] + " <directory> <include_paths>") | |
| sys.exit(2) | |
| root_dir = argv[1] | |
| include_paths = argv[2:] | |
| for root, dirnames, filenames in os.walk(root_dir): | |
| for filename in filenames: | |
| if filename.endswith(('.h', '.cpp')): | |
| fix_include_case(os.path.join(root, filename), include_paths) | |
| if __name__ == "__main__": | |
| main(sys.argv) |
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