#!/usr/bin/env python
#
# Copyright (C) 2014 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 that does not contain images (ie, does
not have an IMAGES/ top-level subdirectory), produce the images and
add them to the zipfile.
Usage: add_img_to_target_files target_files
"""
import sys
if sys.hexversion < 0x02070000:
print >> sys.stderr, "Python 2.7 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, prefix="IMAGES/"):
"""Turn the contents of SYSTEM into a system image and store it in
output_zip."""
block_list = common.MakeTempFile(prefix="system-blocklist-", suffix=".map")
imgname = BuildSystem(OPTIONS.input_tmp, OPTIONS.info_dict,
block_list=block_list)
with open(imgname, "rb") as f:
common.ZipWriteStr(output_zip, prefix + "system.img", f.read())
with open(block_list, "rb") as f:
common.ZipWriteStr(output_zip, prefix + "system.map", f.read())
def BuildSystem(input_dir, info_dict, block_list=None):
"""Build the (sparse) system image and return the name of a temp
file containing it."""
return CreateImage(input_dir, info_dict, "system", block_list=block_list)
def AddVendor(output_zip, prefix="IMAGES/"):
"""Turn the contents of VENDOR into a vendor image and store in it
output_zip."""
block_list = common.MakeTempFile(prefix="vendor-blocklist-", suffix=".map")
imgname = BuildVendor(OPTIONS.input_tmp, OPTIONS.info_dict,
block_list=block_list)
with open(imgname, "rb") as f:
common.ZipWriteStr(output_zip, prefix + "vendor.img", f.read())
with open(block_list, "rb") as f:
common.ZipWriteStr(output_zip, prefix + "vendor.map", f.read())
def BuildVendor(input_dir, info_dict, block_list=None):
"""Build the (sparse) vendor image and return the name of a temp
file containing it."""
return CreateImage(input_dir, info_dict, "vendor", block_list=block_list)
def CreateImage(input_dir, info_dict, what, block_list=None):
print "creating " + what + ".img..."
img = common.MakeTempFile(prefix=what + "-", suffix=".img")
# 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(input_dir, what.upper()),
os.path.join(input_dir, what))
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(info_dict, what)
fstab = info_dict["fstab"]
if fstab:
image_props["fs_type" ] = fstab["/" + what].fs_type
if what == "system":
fs_config_prefix = ""
else:
fs_config_prefix = what + "_"
fs_config = os.path.join(
input_dir, "META/" + fs_config_prefix + "filesystem_config.txt")
if not os.path.exists(fs_config): fs_config = None
fc_config = os.path.join(input_dir, "BOOT/RAMDISK/file_contexts")
if not os.path.exists(fc_config): fc_config = None
succ = build_image.BuildImage(os.path.join(input_dir, what),
image_props, img,
fs_config=fs_config,
fc_config=fc_config,
block_list=block_list)
assert succ, "build " + what + ".img image failed"
return img
def AddUserdata(output_zip, prefix="IMAGES/"):
"""Create an empty userdata image and store it in output_zip."""
image_props = build_image.ImagePropFromGlobalDict(OPTIONS.info_dict,
"data")
# We only allow yaffs to have a 0/missing partition_size.
# Extfs, f2fs must have a size. Skip userdata.img if no size.
if (not image_props.get("fs_type", "").startswith("yaffs") 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, prefix + "userdata.img")
img.close()
os.rmdir(user_dir)
os.rmdir(temp_dir)
def AddCache(output_zip, prefix="IMAGES/"):
"""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, prefix + "cache.img")
img.close()
os.rmdir(user_dir)
os.rmdir(temp_dir)
def AddImagesToTargetFiles(filename):
OPTIONS.input_tmp, input_zip = common.UnzipTemp(filename)
for n in input_zip.namelist():
if n.startswith("IMAGES/"):
print "target_files appears to already contain images."
sys.exit(1)
try:
input_zip.getinfo("VENDOR/")
has_vendor = True
except KeyError:
has_vendor = False
OPTIONS.info_dict = common.LoadInfoDict(input_zip)
if "selinux_fc" in OPTIONS.info_dict:
OPTIONS.info_dict["selinux_fc"] = os.path.join(
OPTIONS.input_tmp, "BOOT", "RAMDISK", "file_contexts")
input_zip.close()
output_zip = zipfile.ZipFile(filename, "a",
compression=zipfile.ZIP_DEFLATED)
def banner(s):
print "\n\n++++ " + s + " ++++\n\n"
banner("boot")
boot_image = common.GetBootableImage(
"IMAGES/boot.img", "boot.img", OPTIONS.input_tmp, "BOOT")
if boot_image:
boot_image.AddToZip(output_zip)
banner("recovery")
recovery_image = common.GetBootableImage(
"IMAGES/recovery.img", "recovery.img", OPTIONS.input_tmp, "RECOVERY")
if recovery_image:
recovery_image.AddToZip(output_zip)
banner("system")
AddSystem(output_zip)
if has_vendor:
banner("vendor")
AddVendor(output_zip)
banner("userdata")
AddUserdata(output_zip)
banner("cache")
AddCache(output_zip)
output_zip.close()
def main(argv):
args = common.ParseOptions(argv, __doc__)
if len(args) != 1:
common.Usage(__doc__)
sys.exit(1)
AddImagesToTargetFiles(args[0])
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)
finally:
common.Cleanup()