1 # Copyright (c) 2011 The Chromium Authors. All rights reserved. 2 # Use of this source code is governed by a BSD-style license that can be 3 # found in the LICENSE file. 4 5 import re 6 import sys 7 8 from http_client_local import HttpClientLocal 9 10 11 GIT_HASH_PATTERN = re.compile(r'^[0-9a-fA-F]{40}$') 12 13 14 def GetOSName(platform_name=sys.platform): 15 if platform_name == 'cygwin' or platform_name.startswith('win'): 16 return 'win' 17 elif platform_name.startswith('linux'): 18 return 'unix' 19 elif platform_name.startswith('darwin'): 20 return 'mac' 21 else: 22 return platform_name 23 24 25 def IsGitHash(revision): 26 return GIT_HASH_PATTERN.match(str(revision)) 27 28 29 def GetHttpClient(): 30 # TODO(stgao): return implementation for appengine when running on appengine. 31 return HttpClientLocal 32 33 34 def JoinLineNumbers(line_numbers, accepted_gap=1): 35 """Join line numbers into line blocks. 36 37 Args: 38 line_numbers: a list of line number. 39 accepted_gap: if two line numbers are within the give gap, 40 they would be combined together into a block. 41 Eg: for (1, 2, 3, 6, 7, 8, 12), if |accepted_gap| = 1, result 42 would be 1-3, 6-8, 12; if |accepted_gap| = 3, result would be 43 1-8, 12; if |accepted_gap| =4, result would be 1-12. 44 """ 45 if not line_numbers: 46 return '' 47 48 line_numbers = map(int, line_numbers) 49 line_numbers.sort() 50 51 block = [] 52 start_line_number = line_numbers[0] 53 last_line_number = start_line_number 54 for current_line_number in line_numbers[1:]: 55 if last_line_number + accepted_gap < current_line_number: 56 if start_line_number == last_line_number: 57 block.append('%d' % start_line_number) 58 else: 59 block.append('%d-%d' % (start_line_number, last_line_number)) 60 start_line_number = current_line_number 61 last_line_number = current_line_number 62 else: 63 if start_line_number == last_line_number: 64 block.append('%d' % start_line_number) 65 else: 66 block.append('%d-%d' % (start_line_number, last_line_number)) 67 68 return ', '.join(block) 69
