1 files changed, 303 insertions, 0 deletions
diff --git a/tools/releasetools/img_from_target_files.py b/tools/releasetools/img_from_target_files.py
new file mode 100755
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+++ b/tools/releasetools/img_from_target_files.py
@@ -0,0 +1,303 @@
+#!/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 < 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, sparse=True):
+  """Turn the contents of SYSTEM into a system image and store it in
+  output_zip."""
+  data = BuildSystem(OPTIONS.input_tmp, OPTIONS.info_dict, sparse=sparse)
+  common.ZipWriteStr(output_zip, "system.img", data)
+
+def BuildSystem(input_dir, info_dict, sparse=True, map_file=None):
+  return CreateImage(input_dir, info_dict, "system",
+                     sparse=sparse, map_file=map_file)
+
+def AddVendor(output_zip, sparse=True):
+  data = BuildVendor(OPTIONS.input_tmp, OPTIONS.info_dict, sparse=sparse)
+  common.ZipWriteStr(output_zip, "vendor.img", data)
+
+def BuildVendor(input_dir, info_dict, sparse=True, map_file=None):
+  return CreateImage(input_dir, info_dict, "vendor",
+                     sparse=sparse, map_file=map_file)
+
+
+def CreateImage(input_dir, info_dict, what, sparse=True, map_file=None):
+  print "creating " + what + ".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(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.name,
+                                fs_config=fs_config,
+                                fc_config=fc_config)
+  assert succ, "build " + what + ".img image failed"
+
+  mapdata = None
+
+  if sparse:
+    data = open(img.name).read()
+    img.close()
+  else:
+    success, name = build_image.UnsparseImage(img.name, replace=False)
+    if not success:
+      assert False, "unsparsing " + what + ".img failed"
+
+    if map_file:
+      mmap = tempfile.NamedTemporaryFile()
+      mimg = tempfile.NamedTemporaryFile(delete=False)
+      success = build_image.MappedUnsparseImage(
+          img.name, name, mmap.name, mimg.name)
+      if not success:
+        assert False, "creating sparse map failed"
+      os.unlink(name)
+      name = mimg.name
+
+      with open(mmap.name) as f:
+        mapdata = f.read()
+
+    try:
+      with open(name) as f:
+        data = f.read()
+    finally:
+      os.unlink(name)
+
+  if mapdata is None:
+    return data
+  else:
+    return mapdata, data
+
+
+def AddUserdata(output_zip):
+  """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, "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)
+
+  boot_image = common.GetBootableImage(
+      "boot.img", "boot.img", OPTIONS.input_tmp, "BOOT")
+  if boot_image:
+      boot_image.AddToZip(output_zip)
+  recovery_image = common.GetBootableImage(
+      "recovery.img", "recovery.img", OPTIONS.input_tmp, "RECOVERY")
+  if recovery_image:
+    recovery_image.AddToZip(output_zip)
+
+  def banner(s):
+    print "\n\n++++ " + s + " ++++\n\n"
+
+  if not bootable_only:
+    banner("AddSystem")
+    AddSystem(output_zip)
+    try:
+      input_zip.getinfo("VENDOR/")
+      banner("AddVendor")
+      AddVendor(output_zip)
+    except KeyError:
+      pass   # no vendor partition for this device
+    banner("AddUserdata")
+    AddUserdata(output_zip)
+    banner("AddCache")
+    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)