1 #!/usr/bin/env python 2 # 3 # Copyright (C) 2009 The Android Open Source Project 4 # 5 # Licensed under the Apache License, Version 2.0 (the "License"); 6 # you may not use this file except in compliance with the License. 7 # You may obtain a copy of the License at 8 # 9 # http://www.apache.org/licenses/LICENSE-2.0 10 # 11 # Unless required by applicable law or agreed to in writing, software 12 # distributed under the License is distributed on an "AS IS" BASIS, 13 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 # See the License for the specific language governing permissions and 15 # limitations under the License. 16 17 import sys 18 19 # Put the modifications that you need to make into the /system/build.prop into this 20 # function. The prop object has get(name) and put(name,value) methods. 21 def mangle_build_prop(prop): 22 pass 23 24 # Put the modifications that you need to make into the /system/build.prop into this 25 # function. The prop object has get(name) and put(name,value) methods. 26 def mangle_default_prop(prop): 27 # If ro.debuggable is 1, then enable adb on USB by default 28 # (this is for userdebug builds) 29 if prop.get("ro.debuggable") == "1": 30 val = prop.get("persist.sys.usb.config") 31 if val == "": 32 val = "adb" 33 else: 34 val = val + ",adb" 35 prop.put("persist.sys.usb.config", val) 36 # UsbDeviceManager expects a value here. If it doesn't get it, it will 37 # default to "adb". That might not the right policy there, but it's better 38 # to be explicit. 39 if not prop.get("persist.sys.usb.config"): 40 prop.put("persist.sys.usb.config", "none"); 41 42 class PropFile: 43 def __init__(self, lines): 44 self.lines = [s[:-1] for s in lines] 45 46 def get(self, name): 47 key = name + "=" 48 for line in self.lines: 49 if line.startswith(key): 50 return line[len(key):] 51 return "" 52 53 def put(self, name, value): 54 key = name + "=" 55 for i in range(0,len(self.lines)): 56 if self.lines[i].startswith(key): 57 self.lines[i] = key + value 58 return 59 self.lines.append(key + value) 60 61 def write(self, f): 62 f.write("\n".join(self.lines)) 63 f.write("\n") 64 65 def main(argv): 66 filename = argv[1] 67 f = open(filename) 68 lines = f.readlines() 69 f.close() 70 71 properties = PropFile(lines) 72 if filename.endswith("/build.prop"): 73 mangle_build_prop(properties) 74 elif filename.endswith("/default.prop"): 75 mangle_default_prop(properties) 76 else: 77 sys.stderr.write("bad command line: " + str(argv) + "\n") 78 sys.exit(1) 79 80 f = open(filename, 'w+') 81 properties.write(f) 82 f.close() 83 84 if __name__ == "__main__": 85 main(sys.argv) 86
