841 lines
29 KiB
Python
Executable file
841 lines
29 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 OTA package that installs
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that build. An incremental OTA is produced if -i is given, otherwise
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a full OTA is produced.
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Usage: ota_from_target_files [flags] input_target_files output_ota_package
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-b (--board_config) <file>
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Deprecated.
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-k (--package_key) <key>
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Key to use to sign the package (default is
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"build/target/product/security/testkey").
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-i (--incremental_from) <file>
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Generate an incremental OTA using the given target-files zip as
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the starting build.
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-w (--wipe_user_data)
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Generate an OTA package that will wipe the user data partition
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when installed.
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-n (--no_prereq)
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Omit the timestamp prereq check normally included at the top of
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the build scripts (used for developer OTA packages which
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legitimately need to go back and forth).
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-e (--extra_script) <file>
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Insert the contents of file at the end of the update script.
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-a (--aslr_mode) <on|off>
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Specify whether to turn on ASLR for the package (on by default).
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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 copy
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import errno
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import os
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import re
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import sha
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import subprocess
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import tempfile
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import time
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import zipfile
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import common
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import edify_generator
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OPTIONS = common.OPTIONS
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OPTIONS.package_key = "build/target/product/security/testkey"
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OPTIONS.incremental_source = None
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OPTIONS.require_verbatim = set()
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OPTIONS.prohibit_verbatim = set(("system/build.prop",))
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OPTIONS.patch_threshold = 0.95
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OPTIONS.wipe_user_data = False
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OPTIONS.omit_prereq = False
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OPTIONS.extra_script = None
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OPTIONS.aslr_mode = True
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OPTIONS.worker_threads = 3
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def MostPopularKey(d, default):
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"""Given a dict, return the key corresponding to the largest
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value. Returns 'default' if the dict is empty."""
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x = [(v, k) for (k, v) in d.iteritems()]
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if not x: return default
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x.sort()
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return x[-1][1]
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def IsSymlink(info):
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"""Return true if the zipfile.ZipInfo object passed in represents a
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symlink."""
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return (info.external_attr >> 16) == 0120777
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def IsRegular(info):
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"""Return true if the zipfile.ZipInfo object passed in represents a
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symlink."""
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return (info.external_attr >> 28) == 010
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class Item:
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"""Items represent the metadata (user, group, mode) of files and
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directories in the system image."""
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ITEMS = {}
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def __init__(self, name, dir=False):
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self.name = name
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self.uid = None
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self.gid = None
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self.mode = None
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self.dir = dir
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if name:
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self.parent = Item.Get(os.path.dirname(name), dir=True)
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self.parent.children.append(self)
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else:
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self.parent = None
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if dir:
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self.children = []
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def Dump(self, indent=0):
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if self.uid is not None:
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print "%s%s %d %d %o" % (" "*indent, self.name, self.uid, self.gid, self.mode)
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else:
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print "%s%s %s %s %s" % (" "*indent, self.name, self.uid, self.gid, self.mode)
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if self.dir:
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print "%s%s" % (" "*indent, self.descendants)
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print "%s%s" % (" "*indent, self.best_subtree)
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for i in self.children:
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i.Dump(indent=indent+1)
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@classmethod
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def Get(cls, name, dir=False):
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if name not in cls.ITEMS:
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cls.ITEMS[name] = Item(name, dir=dir)
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return cls.ITEMS[name]
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@classmethod
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def GetMetadata(cls, input_zip):
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try:
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# See if the target_files contains a record of what the uid,
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# gid, and mode is supposed to be.
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output = input_zip.read("META/filesystem_config.txt")
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except KeyError:
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# Run the external 'fs_config' program to determine the desired
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# uid, gid, and mode for every Item object. Note this uses the
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# one in the client now, which might not be the same as the one
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# used when this target_files was built.
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p = common.Run(["fs_config"], stdin=subprocess.PIPE,
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stdout=subprocess.PIPE, stderr=subprocess.PIPE)
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suffix = { False: "", True: "/" }
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input = "".join(["%s%s\n" % (i.name, suffix[i.dir])
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for i in cls.ITEMS.itervalues() if i.name])
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output, error = p.communicate(input)
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assert not error
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for line in output.split("\n"):
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if not line: continue
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name, uid, gid, mode = line.split()
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i = cls.ITEMS.get(name, None)
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if i is not None:
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i.uid = int(uid)
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i.gid = int(gid)
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i.mode = int(mode, 8)
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if i.dir:
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i.children.sort(key=lambda i: i.name)
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# set metadata for the files generated by this script.
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i = cls.ITEMS.get("system/recovery-from-boot.p", None)
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if i: i.uid, i.gid, i.mode = 0, 0, 0644
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i = cls.ITEMS.get("system/etc/install-recovery.sh", None)
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if i: i.uid, i.gid, i.mode = 0, 0, 0544
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def CountChildMetadata(self):
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"""Count up the (uid, gid, mode) tuples for all children and
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determine the best strategy for using set_perm_recursive and
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set_perm to correctly chown/chmod all the files to their desired
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values. Recursively calls itself for all descendants.
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Returns a dict of {(uid, gid, dmode, fmode): count} counting up
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all descendants of this node. (dmode or fmode may be None.) Also
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sets the best_subtree of each directory Item to the (uid, gid,
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dmode, fmode) tuple that will match the most descendants of that
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Item.
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"""
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assert self.dir
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d = self.descendants = {(self.uid, self.gid, self.mode, None): 1}
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for i in self.children:
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if i.dir:
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for k, v in i.CountChildMetadata().iteritems():
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d[k] = d.get(k, 0) + v
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else:
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k = (i.uid, i.gid, None, i.mode)
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d[k] = d.get(k, 0) + 1
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# Find the (uid, gid, dmode, fmode) tuple that matches the most
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# descendants.
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# First, find the (uid, gid) pair that matches the most
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# descendants.
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ug = {}
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for (uid, gid, _, _), count in d.iteritems():
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ug[(uid, gid)] = ug.get((uid, gid), 0) + count
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ug = MostPopularKey(ug, (0, 0))
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# Now find the dmode and fmode that match the most descendants
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# with that (uid, gid), and choose those.
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best_dmode = (0, 0755)
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best_fmode = (0, 0644)
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for k, count in d.iteritems():
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if k[:2] != ug: continue
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if k[2] is not None and count >= best_dmode[0]: best_dmode = (count, k[2])
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if k[3] is not None and count >= best_fmode[0]: best_fmode = (count, k[3])
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self.best_subtree = ug + (best_dmode[1], best_fmode[1])
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return d
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def SetPermissions(self, script):
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"""Append set_perm/set_perm_recursive commands to 'script' to
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set all permissions, users, and groups for the tree of files
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rooted at 'self'."""
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self.CountChildMetadata()
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def recurse(item, current):
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# current is the (uid, gid, dmode, fmode) tuple that the current
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# item (and all its children) have already been set to. We only
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# need to issue set_perm/set_perm_recursive commands if we're
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# supposed to be something different.
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if item.dir:
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if current != item.best_subtree:
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script.SetPermissionsRecursive("/"+item.name, *item.best_subtree)
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current = item.best_subtree
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if item.uid != current[0] or item.gid != current[1] or \
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item.mode != current[2]:
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script.SetPermissions("/"+item.name, item.uid, item.gid, item.mode)
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for i in item.children:
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recurse(i, current)
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else:
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if item.uid != current[0] or item.gid != current[1] or \
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item.mode != current[3]:
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script.SetPermissions("/"+item.name, item.uid, item.gid, item.mode)
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recurse(self, (-1, -1, -1, -1))
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def CopySystemFiles(input_zip, output_zip=None,
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substitute=None):
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"""Copies files underneath system/ in the input zip to the output
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zip. Populates the Item class with their metadata, and returns a
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list of symlinks as well as a list of files that will be retouched.
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output_zip may be None, in which case the copy is skipped (but the
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other side effects still happen). substitute is an optional dict
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of {output filename: contents} to be output instead of certain input
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files.
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"""
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symlinks = []
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retouch_files = []
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for info in input_zip.infolist():
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if info.filename.startswith("SYSTEM/"):
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basefilename = info.filename[7:]
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if IsSymlink(info):
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symlinks.append((input_zip.read(info.filename),
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"/system/" + basefilename))
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else:
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info2 = copy.copy(info)
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fn = info2.filename = "system/" + basefilename
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if substitute and fn in substitute and substitute[fn] is None:
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continue
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if output_zip is not None:
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if substitute and fn in substitute:
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data = substitute[fn]
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else:
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data = input_zip.read(info.filename)
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if info.filename.startswith("SYSTEM/lib/") and IsRegular(info):
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retouch_files.append(("/system/" + basefilename,
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sha.sha(data).hexdigest()))
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output_zip.writestr(info2, data)
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if fn.endswith("/"):
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Item.Get(fn[:-1], dir=True)
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else:
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Item.Get(fn, dir=False)
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symlinks.sort()
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return (symlinks, retouch_files)
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def SignOutput(temp_zip_name, output_zip_name):
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key_passwords = common.GetKeyPasswords([OPTIONS.package_key])
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pw = key_passwords[OPTIONS.package_key]
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common.SignFile(temp_zip_name, output_zip_name, OPTIONS.package_key, pw,
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whole_file=True)
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def AppendAssertions(script, input_zip):
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device = GetBuildProp("ro.product.device", input_zip)
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script.AssertDevice(device)
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def MakeRecoveryPatch(output_zip, recovery_img, boot_img):
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"""Generate a binary patch that creates the recovery image starting
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with the boot image. (Most of the space in these images is just the
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kernel, which is identical for the two, so the resulting patch
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should be efficient.) Add it to the output zip, along with a shell
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script that is run from init.rc on first boot to actually do the
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patching and install the new recovery image.
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recovery_img and boot_img should be File objects for the
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corresponding images. info should be the dictionary returned by
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common.LoadInfoDict() on the input target_files.
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Returns an Item for the shell script, which must be made
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executable.
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"""
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d = common.Difference(recovery_img, boot_img)
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_, _, patch = d.ComputePatch()
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common.ZipWriteStr(output_zip, "recovery/recovery-from-boot.p", patch)
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Item.Get("system/recovery-from-boot.p", dir=False)
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# Images with different content will have a different first page, so
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# we check to see if this recovery has already been installed by
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# testing just the first 2k.
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HEADER_SIZE = 2048
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header_sha1 = sha.sha(recovery_img.data[:HEADER_SIZE]).hexdigest()
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sh = """#!/system/bin/sh
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if ! applypatch -c %(partition_type)s:%(partition_path)srecovery:%(header_size)d:%(header_sha1)s; then
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log -t recovery "Installing new recovery image"
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applypatch %(partition_type)s:%(partition_path)sboot:%(boot_size)d:%(boot_sha1)s %(partition_type)s:%(partition_path)srecovery %(recovery_sha1)s %(recovery_size)d %(boot_sha1)s:/system/recovery-from-boot.p
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else
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log -t recovery "Recovery image already installed"
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fi
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""" % { 'boot_size': boot_img.size,
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'boot_sha1': boot_img.sha1,
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'header_size': HEADER_SIZE,
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'header_sha1': header_sha1,
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'recovery_size': recovery_img.size,
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'recovery_sha1': recovery_img.sha1,
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'partition_type': OPTIONS.info_dict["partition_type"],
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'partition_path': OPTIONS.info_dict.get("partition_path", ""),
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}
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common.ZipWriteStr(output_zip, "recovery/etc/install-recovery.sh", sh)
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return Item.Get("system/etc/install-recovery.sh", dir=False)
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def WriteFullOTAPackage(input_zip, output_zip):
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# TODO: how to determine this? We don't know what version it will
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# be installed on top of. For now, we expect the API just won't
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# change very often.
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script = edify_generator.EdifyGenerator(3, OPTIONS.info_dict)
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metadata = {"post-build": GetBuildProp("ro.build.fingerprint", input_zip),
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"pre-device": GetBuildProp("ro.product.device", input_zip),
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"post-timestamp": GetBuildProp("ro.build.date.utc", input_zip),
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}
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device_specific = common.DeviceSpecificParams(
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input_zip=input_zip,
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input_version=GetRecoveryAPIVersion(input_zip),
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output_zip=output_zip,
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script=script,
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input_tmp=OPTIONS.input_tmp,
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metadata=metadata)
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if not OPTIONS.omit_prereq:
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ts = GetBuildProp("ro.build.date.utc", input_zip)
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script.AssertOlderBuild(ts)
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AppendAssertions(script, input_zip)
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device_specific.FullOTA_Assertions()
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script.ShowProgress(0.5, 0)
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if OPTIONS.wipe_user_data:
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script.FormatPartition("userdata")
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script.FormatPartition("system")
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script.Mount("system", "/system")
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script.UnpackPackageDir("recovery", "/system")
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script.UnpackPackageDir("system", "/system")
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(symlinks, retouch_files) = CopySystemFiles(input_zip, output_zip)
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script.MakeSymlinks(symlinks)
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if OPTIONS.aslr_mode:
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script.RetouchBinaries(retouch_files)
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else:
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script.UndoRetouchBinaries(retouch_files)
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boot_img = common.File("boot.img", common.BuildBootableImage(
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os.path.join(OPTIONS.input_tmp, "BOOT")))
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recovery_img = common.File("recovery.img", common.BuildBootableImage(
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os.path.join(OPTIONS.input_tmp, "RECOVERY")))
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MakeRecoveryPatch(output_zip, recovery_img, boot_img)
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Item.GetMetadata(input_zip)
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Item.Get("system").SetPermissions(script)
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common.CheckSize(boot_img.data, "boot.img")
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common.ZipWriteStr(output_zip, "boot.img", boot_img.data)
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script.ShowProgress(0.2, 0)
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script.ShowProgress(0.2, 10)
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script.WriteRawImage("boot", "boot.img")
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script.ShowProgress(0.1, 0)
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device_specific.FullOTA_InstallEnd()
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if OPTIONS.extra_script is not None:
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script.AppendExtra(OPTIONS.extra_script)
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script.UnmountAll()
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script.AddToZip(input_zip, output_zip)
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WriteMetadata(metadata, output_zip)
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def WriteMetadata(metadata, output_zip):
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common.ZipWriteStr(output_zip, "META-INF/com/android/metadata",
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"".join(["%s=%s\n" % kv
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for kv in sorted(metadata.iteritems())]))
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def LoadSystemFiles(z):
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"""Load all the files from SYSTEM/... in a given target-files
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ZipFile, and return a dict of {filename: File object}."""
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out = {}
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retouch_files = []
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for info in z.infolist():
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if info.filename.startswith("SYSTEM/") and not IsSymlink(info):
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basefilename = info.filename[7:]
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fn = "system/" + basefilename
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data = z.read(info.filename)
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out[fn] = common.File(fn, data)
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if info.filename.startswith("SYSTEM/lib/") and IsRegular(info):
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retouch_files.append(("/system/" + basefilename,
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out[fn].sha1))
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return (out, retouch_files)
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def GetBuildProp(property, z):
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"""Return the fingerprint of the build of a given target-files
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ZipFile object."""
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bp = z.read("SYSTEM/build.prop")
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if not property:
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return bp
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m = re.search(re.escape(property) + r"=(.*)\n", bp)
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if not m:
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raise common.ExternalError("couldn't find %s in build.prop" % (property,))
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return m.group(1).strip()
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def GetRecoveryAPIVersion(zip):
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"""Returns the version of the recovery API. Version 0 is the older
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amend code (no separate binary)."""
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try:
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version = zip.read("META/recovery-api-version.txt")
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return int(version)
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except KeyError:
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try:
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# version one didn't have the recovery-api-version.txt file, but
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# it did include an updater binary.
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zip.getinfo("OTA/bin/updater")
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return 1
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except KeyError:
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return 0
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def WriteIncrementalOTAPackage(target_zip, source_zip, output_zip):
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source_version = GetRecoveryAPIVersion(source_zip)
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target_version = GetRecoveryAPIVersion(target_zip)
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partition_type = OPTIONS.info_dict["partition_type"]
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|
partition_path = OPTIONS.info_dict.get("partition_path", "")
|
|
|
|
if source_version == 0:
|
|
print ("WARNING: generating edify script for a source that "
|
|
"can't install it.")
|
|
script = edify_generator.EdifyGenerator(source_version, OPTIONS.info_dict)
|
|
|
|
metadata = {"pre-device": GetBuildProp("ro.product.device", source_zip),
|
|
"post-timestamp": GetBuildProp("ro.build.date.utc", target_zip),
|
|
}
|
|
|
|
device_specific = common.DeviceSpecificParams(
|
|
source_zip=source_zip,
|
|
source_version=source_version,
|
|
target_zip=target_zip,
|
|
target_version=target_version,
|
|
output_zip=output_zip,
|
|
script=script,
|
|
metadata=metadata)
|
|
|
|
print "Loading target..."
|
|
(target_data, target_retouch_files) = LoadSystemFiles(target_zip)
|
|
print "Loading source..."
|
|
(source_data, source_retouch_files) = LoadSystemFiles(source_zip)
|
|
|
|
verbatim_targets = []
|
|
patch_list = []
|
|
diffs = []
|
|
largest_source_size = 0
|
|
for fn in sorted(target_data.keys()):
|
|
tf = target_data[fn]
|
|
assert fn == tf.name
|
|
sf = source_data.get(fn, None)
|
|
|
|
if sf is None or fn in OPTIONS.require_verbatim:
|
|
# This file should be included verbatim
|
|
if fn in OPTIONS.prohibit_verbatim:
|
|
raise common.ExternalError("\"%s\" must be sent verbatim" % (fn,))
|
|
print "send", fn, "verbatim"
|
|
tf.AddToZip(output_zip)
|
|
verbatim_targets.append((fn, tf.size))
|
|
elif tf.sha1 != sf.sha1:
|
|
# File is different; consider sending as a patch
|
|
diffs.append(common.Difference(tf, sf))
|
|
else:
|
|
# Target file identical to source.
|
|
pass
|
|
|
|
common.ComputeDifferences(diffs)
|
|
|
|
for diff in diffs:
|
|
tf, sf, d = diff.GetPatch()
|
|
if d is None or len(d) > tf.size * OPTIONS.patch_threshold:
|
|
# patch is almost as big as the file; don't bother patching
|
|
tf.AddToZip(output_zip)
|
|
verbatim_targets.append((tf.name, tf.size))
|
|
else:
|
|
common.ZipWriteStr(output_zip, "patch/" + tf.name + ".p", d)
|
|
patch_list.append((tf.name, tf, sf, tf.size, sha.sha(d).hexdigest()))
|
|
largest_source_size = max(largest_source_size, sf.size)
|
|
|
|
source_fp = GetBuildProp("ro.build.fingerprint", source_zip)
|
|
target_fp = GetBuildProp("ro.build.fingerprint", target_zip)
|
|
metadata["pre-build"] = source_fp
|
|
metadata["post-build"] = target_fp
|
|
|
|
script.Mount("system", "/system")
|
|
script.AssertSomeFingerprint(source_fp, target_fp)
|
|
|
|
source_boot = common.File("/tmp/boot.img",
|
|
common.BuildBootableImage(
|
|
os.path.join(OPTIONS.source_tmp, "BOOT")))
|
|
target_boot = common.File("/tmp/boot.img",
|
|
common.BuildBootableImage(
|
|
os.path.join(OPTIONS.target_tmp, "BOOT")))
|
|
updating_boot = (source_boot.data != target_boot.data)
|
|
|
|
source_recovery = common.File("system/recovery.img",
|
|
common.BuildBootableImage(
|
|
os.path.join(OPTIONS.source_tmp, "RECOVERY")))
|
|
target_recovery = common.File("system/recovery.img",
|
|
common.BuildBootableImage(
|
|
os.path.join(OPTIONS.target_tmp, "RECOVERY")))
|
|
updating_recovery = (source_recovery.data != target_recovery.data)
|
|
|
|
# Here's how we divide up the progress bar:
|
|
# 0.1 for verifying the start state (PatchCheck calls)
|
|
# 0.8 for applying patches (ApplyPatch calls)
|
|
# 0.1 for unpacking verbatim files, symlinking, and doing the
|
|
# device-specific commands.
|
|
|
|
AppendAssertions(script, target_zip)
|
|
device_specific.IncrementalOTA_Assertions()
|
|
|
|
script.Print("Verifying current system...")
|
|
|
|
script.ShowProgress(0.1, 0)
|
|
total_verify_size = float(sum([i[2].size for i in patch_list]) + 1)
|
|
if updating_boot:
|
|
total_verify_size += source_boot.size
|
|
so_far = 0
|
|
|
|
for fn, tf, sf, size, patch_sha in patch_list:
|
|
script.PatchCheck("/"+fn, tf.sha1, sf.sha1)
|
|
so_far += sf.size
|
|
script.SetProgress(so_far / total_verify_size)
|
|
|
|
if updating_boot:
|
|
d = common.Difference(target_boot, source_boot)
|
|
_, _, d = d.ComputePatch()
|
|
print "boot target: %d source: %d diff: %d" % (
|
|
target_boot.size, source_boot.size, len(d))
|
|
|
|
common.ZipWriteStr(output_zip, "patch/boot.img.p", d)
|
|
|
|
script.PatchCheck("%s:%sboot:%d:%s:%d:%s" %
|
|
(partition_type, partition_path,
|
|
source_boot.size, source_boot.sha1,
|
|
target_boot.size, target_boot.sha1))
|
|
so_far += source_boot.size
|
|
script.SetProgress(so_far / total_verify_size)
|
|
|
|
if patch_list or updating_recovery or updating_boot:
|
|
script.CacheFreeSpaceCheck(largest_source_size)
|
|
|
|
device_specific.IncrementalOTA_VerifyEnd()
|
|
|
|
script.Comment("---- start making changes here ----")
|
|
|
|
if OPTIONS.wipe_user_data:
|
|
script.Print("Erasing user data...")
|
|
script.FormatPartition("userdata")
|
|
|
|
script.Print("Removing unneeded files...")
|
|
script.DeleteFiles(["/"+i[0] for i in verbatim_targets] +
|
|
["/"+i for i in sorted(source_data)
|
|
if i not in target_data] +
|
|
["/system/recovery.img"])
|
|
|
|
script.ShowProgress(0.8, 0)
|
|
total_patch_size = float(sum([i[1].size for i in patch_list]) + 1)
|
|
if updating_boot:
|
|
total_patch_size += target_boot.size
|
|
so_far = 0
|
|
|
|
script.Print("Patching system files...")
|
|
for fn, tf, sf, size, _ in patch_list:
|
|
script.ApplyPatch("/"+fn, "-", tf.size, tf.sha1, sf.sha1, "patch/"+fn+".p")
|
|
so_far += tf.size
|
|
script.SetProgress(so_far / total_patch_size)
|
|
|
|
if updating_boot:
|
|
# Produce the boot image by applying a patch to the current
|
|
# contents of the boot partition, and write it back to the
|
|
# partition.
|
|
script.Print("Patching boot image...")
|
|
script.ApplyPatch("%s:%sboot:%d:%s:%d:%s"
|
|
% (partition_type, partition_path,
|
|
source_boot.size, source_boot.sha1,
|
|
target_boot.size, target_boot.sha1),
|
|
"-",
|
|
target_boot.size, target_boot.sha1,
|
|
source_boot.sha1, "patch/boot.img.p")
|
|
so_far += target_boot.size
|
|
script.SetProgress(so_far / total_patch_size)
|
|
print "boot image changed; including."
|
|
else:
|
|
print "boot image unchanged; skipping."
|
|
|
|
if updating_recovery:
|
|
# Is it better to generate recovery as a patch from the current
|
|
# boot image, or from the previous recovery image? For large
|
|
# updates with significant kernel changes, probably the former.
|
|
# For small updates where the kernel hasn't changed, almost
|
|
# certainly the latter. We pick the first option. Future
|
|
# complicated schemes may let us effectively use both.
|
|
#
|
|
# A wacky possibility: as long as there is room in the boot
|
|
# partition, include the binaries and image files from recovery in
|
|
# the boot image (though not in the ramdisk) so they can be used
|
|
# as fodder for constructing the recovery image.
|
|
MakeRecoveryPatch(output_zip, target_recovery, target_boot)
|
|
script.DeleteFiles(["/system/recovery-from-boot.p",
|
|
"/system/etc/install-recovery.sh"])
|
|
print "recovery image changed; including as patch from boot."
|
|
else:
|
|
print "recovery image unchanged; skipping."
|
|
|
|
script.ShowProgress(0.1, 10)
|
|
|
|
(target_symlinks, target_retouch_dummies) = CopySystemFiles(target_zip, None)
|
|
|
|
target_symlinks_d = dict([(i[1], i[0]) for i in target_symlinks])
|
|
temp_script = script.MakeTemporary()
|
|
Item.GetMetadata(target_zip)
|
|
Item.Get("system").SetPermissions(temp_script)
|
|
|
|
# Note that this call will mess up the tree of Items, so make sure
|
|
# we're done with it.
|
|
(source_symlinks, source_retouch_dummies) = CopySystemFiles(source_zip, None)
|
|
source_symlinks_d = dict([(i[1], i[0]) for i in source_symlinks])
|
|
|
|
# Delete all the symlinks in source that aren't in target. This
|
|
# needs to happen before verbatim files are unpacked, in case a
|
|
# symlink in the source is replaced by a real file in the target.
|
|
to_delete = []
|
|
for dest, link in source_symlinks:
|
|
if link not in target_symlinks_d:
|
|
to_delete.append(link)
|
|
script.DeleteFiles(to_delete)
|
|
|
|
if verbatim_targets:
|
|
script.Print("Unpacking new files...")
|
|
script.UnpackPackageDir("system", "/system")
|
|
|
|
if updating_recovery:
|
|
script.Print("Unpacking new recovery...")
|
|
script.UnpackPackageDir("recovery", "/system")
|
|
|
|
script.Print("Symlinks and permissions...")
|
|
|
|
# Create all the symlinks that don't already exist, or point to
|
|
# somewhere different than what we want. Delete each symlink before
|
|
# creating it, since the 'symlink' command won't overwrite.
|
|
to_create = []
|
|
for dest, link in target_symlinks:
|
|
if link in source_symlinks_d:
|
|
if dest != source_symlinks_d[link]:
|
|
to_create.append((dest, link))
|
|
else:
|
|
to_create.append((dest, link))
|
|
script.DeleteFiles([i[1] for i in to_create])
|
|
script.MakeSymlinks(to_create)
|
|
if OPTIONS.aslr_mode:
|
|
script.RetouchBinaries(target_retouch_files)
|
|
else:
|
|
script.UndoRetouchBinaries(target_retouch_files)
|
|
|
|
# Now that the symlinks are created, we can set all the
|
|
# permissions.
|
|
script.AppendScript(temp_script)
|
|
|
|
# Do device-specific installation (eg, write radio image).
|
|
device_specific.IncrementalOTA_InstallEnd()
|
|
|
|
if OPTIONS.extra_script is not None:
|
|
script.AppendExtra(OPTIONS.extra_script)
|
|
|
|
script.AddToZip(target_zip, output_zip)
|
|
WriteMetadata(metadata, output_zip)
|
|
|
|
|
|
def main(argv):
|
|
|
|
def option_handler(o, a):
|
|
if o in ("-b", "--board_config"):
|
|
pass # deprecated
|
|
elif o in ("-k", "--package_key"):
|
|
OPTIONS.package_key = a
|
|
elif o in ("-i", "--incremental_from"):
|
|
OPTIONS.incremental_source = a
|
|
elif o in ("-w", "--wipe_user_data"):
|
|
OPTIONS.wipe_user_data = True
|
|
elif o in ("-n", "--no_prereq"):
|
|
OPTIONS.omit_prereq = True
|
|
elif o in ("-e", "--extra_script"):
|
|
OPTIONS.extra_script = a
|
|
elif o in ("-a", "--aslr_mode"):
|
|
if a in ("on", "On", "true", "True", "yes", "Yes"):
|
|
OPTIONS.aslr_mode = True
|
|
else:
|
|
OPTIONS.aslr_mode = False
|
|
elif o in ("--worker_threads"):
|
|
OPTIONS.worker_threads = int(a)
|
|
else:
|
|
return False
|
|
return True
|
|
|
|
args = common.ParseOptions(argv, __doc__,
|
|
extra_opts="b:k:i:d:wne:a:",
|
|
extra_long_opts=["board_config=",
|
|
"package_key=",
|
|
"incremental_from=",
|
|
"wipe_user_data",
|
|
"no_prereq",
|
|
"extra_script=",
|
|
"worker_threads=",
|
|
"aslr_mode=",
|
|
],
|
|
extra_option_handler=option_handler)
|
|
|
|
if len(args) != 2:
|
|
common.Usage(__doc__)
|
|
sys.exit(1)
|
|
|
|
if OPTIONS.extra_script is not None:
|
|
OPTIONS.extra_script = open(OPTIONS.extra_script).read()
|
|
|
|
print "unzipping target target-files..."
|
|
OPTIONS.input_tmp = common.UnzipTemp(args[0])
|
|
|
|
if OPTIONS.device_specific is None:
|
|
# look for the device-specific tools extension location in the input
|
|
try:
|
|
f = open(os.path.join(OPTIONS.input_tmp, "META", "tool-extensions.txt"))
|
|
ds = f.read().strip()
|
|
f.close()
|
|
if ds:
|
|
ds = os.path.normpath(ds)
|
|
print "using device-specific extensions in", ds
|
|
OPTIONS.device_specific = ds
|
|
except IOError, e:
|
|
if e.errno == errno.ENOENT:
|
|
# nothing specified in the file
|
|
pass
|
|
else:
|
|
raise
|
|
|
|
OPTIONS.info_dict = common.LoadInfoDict()
|
|
common.LoadMaxSizes(OPTIONS.info_dict)
|
|
if not OPTIONS.max_image_size:
|
|
print
|
|
print " WARNING: Failed to load max image sizes; will not enforce"
|
|
print " image size limits."
|
|
print
|
|
|
|
OPTIONS.target_tmp = OPTIONS.input_tmp
|
|
input_zip = zipfile.ZipFile(args[0], "r")
|
|
if OPTIONS.package_key:
|
|
temp_zip_file = tempfile.NamedTemporaryFile()
|
|
output_zip = zipfile.ZipFile(temp_zip_file, "w",
|
|
compression=zipfile.ZIP_DEFLATED)
|
|
else:
|
|
output_zip = zipfile.ZipFile(args[1], "w",
|
|
compression=zipfile.ZIP_DEFLATED)
|
|
|
|
if OPTIONS.incremental_source is None:
|
|
WriteFullOTAPackage(input_zip, output_zip)
|
|
else:
|
|
print "unzipping source target-files..."
|
|
OPTIONS.source_tmp = common.UnzipTemp(OPTIONS.incremental_source)
|
|
source_zip = zipfile.ZipFile(OPTIONS.incremental_source, "r")
|
|
WriteIncrementalOTAPackage(input_zip, source_zip, output_zip)
|
|
|
|
output_zip.close()
|
|
if OPTIONS.package_key:
|
|
SignOutput(temp_zip_file.name, args[1])
|
|
temp_zip_file.close()
|
|
|
|
common.Cleanup()
|
|
|
|
print "done."
|
|
|
|
|
|
if __name__ == '__main__':
|
|
try:
|
|
main(sys.argv[1:])
|
|
except common.ExternalError, e:
|
|
print
|
|
print " ERROR: %s" % (e,)
|
|
print
|
|
sys.exit(1)
|