1#!/usr/bin/python 2# Copyright 2014 Google Inc. All rights reserved. 3# 4# Licensed under the Apache License, Version 2.0 (the "License"); 5# you may not use this file except in compliance with the License. 6# You may obtain a copy of the License at 7# 8# http://www.apache.org/licenses/LICENSE-2.0 9# 10# Unless required by applicable law or agreed to in writing, software 11# distributed under the License is distributed on an "AS IS" BASIS, 12# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13# See the License for the specific language governing permissions and 14# limitations under the License. 15 16"""Simple script that locates the newest MSBuild in one of several locations. 17 18This script will find the highest version number of MSBuild and run it, 19passing its arguments through to MSBuild. 20""" 21 22import glob 23import os 24import re 25import string 26import subprocess 27import sys 28 29SYSTEMROOT = os.getenv("SYSTEMROOT", "c:\\windows") 30PROGRAM_FILES = os.getenv("ProgramFiles", "c:\\Program Files") 31PROGRAM_FILES_X86 = os.getenv("ProgramFiles(x86)", "c:\\Program Files (x86)") 32 33SEARCH_FOLDERS = [ PROGRAM_FILES + "\\MSBuild\\*\\Bin\\MSBuild.exe", 34 PROGRAM_FILES_X86 + "\\MSBuild\\*\\Bin\\MSBuild.exe", 35 SYSTEMROOT + "\\Microsoft.NET\Framework\\*\\MSBuild.exe" ] 36 37def compare_version(a, b): 38 """Compare two version number strings of the form W.X.Y.Z. 39 40 The numbers are compared most-significant to least-significant. 41 For example, 12.345.67.89 > 2.987.88.99. 42 43 Args: 44 a: First version number string to compare 45 b: Second version number string to compare 46 47 Returns: 48 0 if the numbers are identical, a positive number if 'a' is larger, and 49 a negative number if 'b' is larger. 50 """ 51 aa = string.split(a, ".") 52 bb = string.split(b, ".") 53 for i in range(0, 4): 54 if aa[i] != bb[i]: 55 return cmp(int(aa[i]), int(bb[i])) 56 return 0 57 58def main(): 59 msbuilds = [] 60 61 for folder in SEARCH_FOLDERS: 62 for file in glob.glob(folder): 63 p = subprocess.Popen([file, "/version"], stdout=subprocess.PIPE) 64 out, err = p.communicate() 65 match = re.search("^[0-9]+\\.[0-9]+\\.[0-9]+\\.[0-9]+$", out, re.M) 66 if match: 67 msbuilds.append({ 'ver':match.group(), 'exe':file }) 68 msbuilds.sort(lambda x, y: compare_version(x['ver'], y['ver']), reverse=True) 69 if len(msbuilds) == 0: 70 print "Unable to find MSBuild.\n" 71 return -1; 72 cmd = [msbuilds[0]['exe']] 73 cmd.extend(sys.argv[1:]) 74 return subprocess.call(cmd) 75 76if __name__ == '__main__': 77 sys.exit(main()) 78