Created
March 1, 2014 23:15
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| #!/usr/bin/env python | |
| from __future__ import print_function | |
| import re, sys, os, os.path | |
| def looks_like_python_code(filename, file_str): | |
| if os.path.splitext(filename)[1] == '.py': | |
| return True | |
| elif file_str[:100].find(r'#!') != -1 and file_str[:100].find('python') != -1: | |
| return True | |
| else: | |
| return False | |
| def process_file(filename): | |
| try: | |
| f = open(filename) | |
| remaining_str = f.read() | |
| f.close() | |
| except UnicodeDecodeError: | |
| # binary files may fail to load in python3 | |
| return | |
| if not looks_like_python_code(filename, remaining_str): | |
| return | |
| processed_blocks = [] | |
| while len(remaining_str) > 0: | |
| m = publisher_re.search(remaining_str) | |
| if not m: | |
| processed_blocks.append(remaining_str) | |
| break | |
| # find closing paren | |
| paren_count = 1 | |
| arglist_start_i = m.start(1) | |
| arglist_end_i = arglist_start_i | |
| while paren_count != 0: | |
| if arglist_end_i >= len(remaining_str): | |
| print('Missing closing paren in %s, skipping...' % filename) | |
| return | |
| if remaining_str[arglist_end_i] == '(': | |
| paren_count += 1 | |
| elif remaining_str[arglist_end_i] == ')': | |
| paren_count -= 1 | |
| arglist_end_i += 1 | |
| processed_blocks.append(remaining_str[:arglist_end_i-1]) | |
| # nothing to do if queue_size already present | |
| if remaining_str[arglist_start_i:arglist_end_i].find('queue_size') != -1: | |
| pass | |
| else: | |
| processed_blocks.append(', queue_size=%d' % queue_size) | |
| processed_blocks.append(')') | |
| remaining_str = remaining_str[arglist_end_i:] | |
| # write corrected code out to same file | |
| f = open(filename, 'w') | |
| f.write(''.join(processed_blocks)) | |
| f.close() | |
| publisher_re = re.compile(r'rospy.Publisher\s*\(()') | |
| root_dir = sys.argv[1] | |
| if len(sys.argv) > 2: | |
| queue_size = int(sys.argv[2]) | |
| else: | |
| queue_size = 10 | |
| for root, dirs, files in os.walk(root_dir): | |
| for filename in files: | |
| process_file(os.path.join(root, filename)) | |
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