Created
February 14, 2015 20:15
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Diffs a C++ file, or directory of C++ files with the results of running those files through clang-format.
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| #! /usr/bin/env python | |
| # Author: Joseph Lisee <jlisee@gmail.com> | |
| # Purpose: Test out various clang formatting options | |
| # Usage: compare-format.py <diff-tool> <input-path> [<clang-options] | |
| # Example: | |
| # compare-format.py meld file.cpp "-style={BasedOnStyle: Google, IndentWidth: 4}" | |
| import os | |
| import subprocess | |
| import sys | |
| import tempfile | |
| # Generate a temporary file | |
| diff_tool = sys.argv[1].split(' ') | |
| input_path = sys.argv[2] | |
| clang_opts = sys.argv[3:] | |
| # Get the list of files to process | |
| valid_extension = set(['hh', 'h', 'hpp', 'c++', 'c', 'cpp', 'cc', 'C', 'H']) | |
| if os.path.isdir(input_path): | |
| to_process = [] | |
| for root, dirs, files in os.walk(input_path, topdown=True): | |
| for name in files: | |
| _, ext = os.path.splitext(name) | |
| if ext[1:] in valid_extension: | |
| to_process.append(os.path.join(root, name)) | |
| else: | |
| to_process = [input_path] | |
| # Process our files: | |
| for file_path in to_process: | |
| #print file_path | |
| with tempfile.NamedTemporaryFile() as ofile: | |
| # Run clang format sending output to temp | |
| subprocess.check_call(['clang-format', file_path] + clang_opts, | |
| stdout=ofile) | |
| # Run meld to compare the results | |
| subprocess.call(diff_tool + [file_path, ofile.name]) |
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