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