#!/usr/bin/env python
#
# Copyright (C) 2008 The Android Open Source Project
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""
Given a target-files zipfile, produces an image zipfile suitable for
use with 'fastboot update'.
Usage: img_from_target_files [flags] input_target_files output_image_zip
-b (--board_config) <file>
Deprecated.
-z (--bootable_zip)
Include only the bootable images (eg 'boot' and 'recovery') in
the output.
"""
import sys
if sys.hexversion < 0x02040000:
print >> sys.stderr, "Python 2.4 or newer is required."
sys.exit(1)
import errno
import os
import re
import shutil
import subprocess
import tempfile
import zipfile
# missing in Python 2.4 and before
if not hasattr(os, "SEEK_SET"):
os.SEEK_SET = 0
import build_image
import common
OPTIONS = common.OPTIONS
def AddSystem(output_zip):
"""Turn the contents of SYSTEM into a system image and store it in
output_zip."""
print "creating system.img..."
img = tempfile.NamedTemporaryFile()
# The name of the directory it is making an image out of matters to
# mkyaffs2image. It wants "system" but we have a directory named
# "SYSTEM", so create a symlink.
try:
os.symlink(os.path.join(OPTIONS.input_tmp, "SYSTEM"),
os.path.join(OPTIONS.input_tmp, "system"))
except OSError, e:
# bogus error on my mac version?
# File "./build/tools/releasetools/img_from_target_files", line 86, in AddSystem
# os.path.join(OPTIONS.input_tmp, "system"))
# OSError: [Errno 17] File exists
if (e.errno == errno.EEXIST):
pass
image_props = build_image.ImagePropFromGlobalDict(OPTIONS.info_dict,
"system")
fstab = OPTIONS.info_dict["fstab"]
if fstab:
image_props["fs_type" ] = fstab["/system"].fs_type
succ = build_image.BuildImage(os.path.join(OPTIONS.input_tmp, "system"),
image_props, img.name)
assert succ, "build system.img image failed"
img.seek(os.SEEK_SET, 0)
data = img.read()
img.close()
common.CheckSize(data, "system.img", OPTIONS.info_dict)
common.ZipWriteStr(output_zip, "system.img", data)
def AddVendor(output_zip):
"""Turn the contents of VENDOR into vendor.img and store it in
output_zip."""
image_props = build_image.ImagePropFromGlobalDict(OPTIONS.info_dict,
"vendor")
# The build system has to explicitly request for vendor.img.
if "fs_type" not in image_props:
return
print "creating vendor.img..."
img = tempfile.NamedTemporaryFile()
# The name of the directory it is making an image out of matters to
# mkyaffs2image. It wants "vendor" but we have a directory named
# "VENDOR", so create a symlink or an empty directory if VENDOR does not
# exist.
if not os.path.exists(os.path.join(OPTIONS.input_tmp, "vendor")):
if os.path.exists(os.path.join(OPTIONS.input_tmp, "VENDOR")):
os.symlink(os.path.join(OPTIONS.input_tmp, "VENDOR"),
os.path.join(OPTIONS.input_tmp, "vendor"))
else:
os.mkdir(os.path.join(OPTIONS.input_tmp, "vendor"))
img = tempfile.NamedTemporaryFile()
fstab = OPTIONS.info_dict["fstab"]
if fstab:
image_props["fs_type" ] = fstab["/vendor"].fs_type
succ = build_image.BuildImage(os.path.join(OPTIONS.input_tmp, "vendor"),
image_props, img.name)
assert succ, "build vendor.img image failed"
common.CheckSize(img.name, "vendor.img", OPTIONS.info_dict)
output_zip.write(img.name, "vendor.img")
img.close()
def AddUserdata(output_zip):
"""Create an empty userdata image and store it in output_zip."""
image_props = build_image.ImagePropFromGlobalDict(OPTIONS.info_dict,
"data")
# If no userdata_size is provided for extfs, skip userdata.img.
if (image_props.get("fs_type", "").startswith("ext") and
not image_props.get("partition_size")):
return
print "creating userdata.img..."
# The name of the directory it is making an image out of matters to
# mkyaffs2image. So we create a temp dir, and within it we create an
# empty dir named "data", and build the image from that.
temp_dir = tempfile.mkdtemp()
user_dir = os.path.join(temp_dir, "data")
os.mkdir(user_dir)
img = tempfile.NamedTemporaryFile()
fstab = OPTIONS.info_dict["fstab"]
if fstab:
image_props["fs_type" ] = fstab["/data"].fs_type
succ = build_image.BuildImage(user_dir, image_props, img.name)
assert succ, "build userdata.img image failed"
common.CheckSize(img.name, "userdata.img", OPTIONS.info_dict)
output_zip.write(img.name, "userdata.img")
img.close()
os.rmdir(user_dir)
os.rmdir(temp_dir)
def AddCache(output_zip):
"""Create an empty cache image and store it in output_zip."""
image_props = build_image.ImagePropFromGlobalDict(OPTIONS.info_dict,
"cache")
# The build system has to explicitly request for cache.img.
if "fs_type" not in image_props:
return
print "creating cache.img..."
# The name of the directory it is making an image out of matters to
# mkyaffs2image. So we create a temp dir, and within it we create an
# empty dir named "cache", and build the image from that.
temp_dir = tempfile.mkdtemp()
user_dir = os.path.join(temp_dir, "cache")
os.mkdir(user_dir)
img = tempfile.NamedTemporaryFile()
fstab = OPTIONS.info_dict["fstab"]
if fstab:
image_props["fs_type" ] = fstab["/cache"].fs_type
succ = build_image.BuildImage(user_dir, image_props, img.name)
assert succ, "build cache.img image failed"
common.CheckSize(img.name, "cache.img", OPTIONS.info_dict)
output_zip.write(img.name, "cache.img")
img.close()
os.rmdir(user_dir)
os.rmdir(temp_dir)
def CopyInfo(output_zip):
"""Copy the android-info.txt file from the input to the output."""
output_zip.write(os.path.join(OPTIONS.input_tmp, "OTA", "android-info.txt"),
"android-info.txt")
def main(argv):
bootable_only = [False]
def option_handler(o, a):
if o in ("-b", "--board_config"):
pass # deprecated
if o in ("-z", "--bootable_zip"):
bootable_only[0] = True
else:
return False
return True
args = common.ParseOptions(argv, __doc__,
extra_opts="b:z",
extra_long_opts=["board_config=",
"bootable_zip"],
extra_option_handler=option_handler)
bootable_only = bootable_only[0]
if len(args) != 2:
common.Usage(__doc__)
sys.exit(1)
OPTIONS.input_tmp, input_zip = common.UnzipTemp(args[0])
OPTIONS.info_dict = common.LoadInfoDict(input_zip)
# If this image was originally labelled with SELinux contexts, make sure we
# also apply the labels in our new image. During building, the "file_contexts"
# is in the out/ directory tree, but for repacking from target-files.zip it's
# in the root directory of the ramdisk.
if "selinux_fc" in OPTIONS.info_dict:
OPTIONS.info_dict["selinux_fc"] = os.path.join(OPTIONS.input_tmp, "BOOT", "RAMDISK",
"file_contexts")
output_zip = zipfile.ZipFile(args[1], "w", compression=zipfile.ZIP_DEFLATED)
common.GetBootableImage(
"boot.img", "boot.img", OPTIONS.input_tmp, "BOOT").AddToZip(output_zip)
common.GetBootableImage(
"recovery.img", "recovery.img", OPTIONS.input_tmp,
"RECOVERY").AddToZip(output_zip)
if not bootable_only:
AddSystem(output_zip)
AddVendor(output_zip)
AddUserdata(output_zip)
AddCache(output_zip)
CopyInfo(output_zip)
print "cleaning up..."
output_zip.close()
shutil.rmtree(OPTIONS.input_tmp)
print "done."
if __name__ == '__main__':
try:
common.CloseInheritedPipes()
main(sys.argv[1:])
except common.ExternalError, e:
print
print " ERROR: %s" % (e,)
print
sys.exit(1)