Merge "ota_from_target_files: Add an option to not sign OTA packages"

tools/releasetools/ota_from_target_files

@@ -88,6 +88,7 @@ OPTIONS.omit_prereq = False
 OPTIONS.extra_script = None
 OPTIONS.aslr_mode = True
 OPTIONS.worker_threads = 3
+OPTIONS.no_signing = False
 
 def MostPopularKey(d, default):
   """Given a dict, return the key corresponding to the largest
@@ -822,6 +823,8 @@ def main(argv):
         OPTIONS.aslr_mode = False
     elif o in ("--worker_threads"):
       OPTIONS.worker_threads = int(a)
+    elif o in ("--no_signing"):
+      OPTIONS.no_signing = True
     else:
       return False
     return True
@@ -836,6 +839,7 @@ def main(argv):
                                               "extra_script=",
                                               "worker_threads=",
                                               "aslr_mode=",
+                                              "no_signing",
                                               ],
                              extra_option_handler=option_handler)
 
@@ -870,6 +874,9 @@ def main(argv):
     OPTIONS.device_specific = os.path.normpath(OPTIONS.device_specific)
     print "using device-specific extensions in", OPTIONS.device_specific
 
+  if OPTIONS.no_signing:
+    output_zip = zipfile.ZipFile(args[1], "w", compression=zipfile.ZIP_DEFLATED)
+  else:
     temp_zip_file = tempfile.NamedTemporaryFile()
     output_zip = zipfile.ZipFile(temp_zip_file, "w",
                                  compression=zipfile.ZIP_DEFLATED)
@@ -896,6 +903,7 @@ def main(argv):
 
   output_zip.close()
 
+  if not OPTIONS.no_signing:
     SignOutput(temp_zip_file.name, args[1])
     temp_zip_file.close()