1#!/usr/bin/env python
2#
3# Copyright (C) 2008 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"""
18Given a target-files zipfile, produces an image zipfile suitable for
19use with 'fastboot update'.
20
21Usage:  img_from_target_files [flags] input_target_files output_image_zip
22
23  -z  (--bootable_zip)
24      Include only the bootable images (eg 'boot' and 'recovery') in
25      the output.
26
27"""
28
29from __future__ import print_function
30
31import sys
32
33if sys.hexversion < 0x02070000:
34  print("Python 2.7 or newer is required.", file=sys.stderr)
35  sys.exit(1)
36
37import os
38import shutil
39import zipfile
40
41import common
42
43OPTIONS = common.OPTIONS
44
45
46def CopyInfo(output_zip):
47  """Copy the android-info.txt file from the input to the output."""
48  common.ZipWrite(
49      output_zip, os.path.join(OPTIONS.input_tmp, "OTA", "android-info.txt"),
50      "android-info.txt")
51
52
53def main(argv):
54  bootable_only = [False]
55
56  def option_handler(o, _):
57    if o in ("-z", "--bootable_zip"):
58      bootable_only[0] = True
59    else:
60      return False
61    return True
62
63  args = common.ParseOptions(argv, __doc__,
64                             extra_opts="z",
65                             extra_long_opts=["bootable_zip"],
66                             extra_option_handler=option_handler)
67
68  bootable_only = bootable_only[0]
69
70  if len(args) != 2:
71    common.Usage(__doc__)
72    sys.exit(1)
73
74  OPTIONS.input_tmp, input_zip = common.UnzipTemp(args[0])
75  output_zip = zipfile.ZipFile(args[1], "w", compression=zipfile.ZIP_DEFLATED)
76  CopyInfo(output_zip)
77
78  try:
79    done = False
80    images_path = os.path.join(OPTIONS.input_tmp, "IMAGES")
81    if os.path.exists(images_path):
82      # If this is a new target-files, it already contains the images,
83      # and all we have to do is copy them to the output zip.
84      images = os.listdir(images_path)
85      if images:
86        for image in images:
87          if bootable_only and image not in ("boot.img", "recovery.img"):
88            continue
89          if not image.endswith(".img"):
90            continue
91          if image == "recovery-two-step.img":
92            continue
93          common.ZipWrite(
94              output_zip, os.path.join(images_path, image), image)
95        done = True
96
97    if not done:
98      # We have an old target-files that doesn't already contain the
99      # images, so build them.
100      import add_img_to_target_files
101
102      OPTIONS.info_dict = common.LoadInfoDict(input_zip, OPTIONS.input_tmp)
103
104      boot_image = common.GetBootableImage(
105          "boot.img", "boot.img", OPTIONS.input_tmp, "BOOT")
106      if boot_image:
107        boot_image.AddToZip(output_zip)
108
109      if OPTIONS.info_dict.get("no_recovery") != "true":
110        recovery_image = common.GetBootableImage(
111            "recovery.img", "recovery.img", OPTIONS.input_tmp, "RECOVERY")
112        if recovery_image:
113          recovery_image.AddToZip(output_zip)
114
115      def banner(s):
116        print("\n\n++++ " + s + " ++++\n\n")
117
118      if not bootable_only:
119        banner("AddSystem")
120        add_img_to_target_files.AddSystem(output_zip, prefix="")
121        try:
122          input_zip.getinfo("VENDOR/")
123          banner("AddVendor")
124          add_img_to_target_files.AddVendor(output_zip, prefix="")
125        except KeyError:
126          pass   # no vendor partition for this device
127        banner("AddUserdata")
128        add_img_to_target_files.AddUserdata(output_zip, prefix="")
129        banner("AddCache")
130        add_img_to_target_files.AddCache(output_zip, prefix="")
131
132  finally:
133    print("cleaning up...")
134    common.ZipClose(output_zip)
135    shutil.rmtree(OPTIONS.input_tmp)
136
137  print("done.")
138
139
140if __name__ == '__main__':
141  try:
142    common.CloseInheritedPipes()
143    main(sys.argv[1:])
144  except common.ExternalError as e:
145    print("\n   ERROR: %s\n" % (e,))
146    sys.exit(1)
147