| #!/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 OTA package that installs |
| that build. An incremental OTA is produced if -i is given, otherwise |
| a full OTA is produced. |
| |
| Usage: ota_from_target_files [flags] input_target_files output_ota_package |
| |
| -b (--board_config) <file> |
| Specifies a BoardConfig.mk file containing image max sizes |
| against which the generated image files are checked. |
| |
| -k (--package_key) <key> |
| Key to use to sign the package (default is |
| "build/target/product/security/testkey"). |
| |
| -i (--incremental_from) <file> |
| Generate an incremental OTA using the given target-files zip as |
| the starting build. |
| |
| -w (--wipe_user_data) |
| Generate an OTA package that will wipe the user data partition |
| when installed. |
| |
| -n (--no_prereq) |
| Omit the timestamp prereq check normally included at the top of |
| the build scripts (used for developer OTA packages which |
| legitimately need to go back and forth). |
| |
| -e (--extra_script) <file> |
| Insert the contents of file at the end of the update script. |
| |
| """ |
| |
| import sys |
| |
| if sys.hexversion < 0x02040000: |
| print >> sys.stderr, "Python 2.4 or newer is required." |
| sys.exit(1) |
| |
| import copy |
| import os |
| import re |
| import sha |
| import subprocess |
| import tempfile |
| import time |
| import zipfile |
| |
| import common |
| |
| OPTIONS = common.OPTIONS |
| OPTIONS.package_key = "build/target/product/security/testkey" |
| OPTIONS.incremental_source = None |
| OPTIONS.require_verbatim = set() |
| OPTIONS.prohibit_verbatim = set(("system/build.prop",)) |
| OPTIONS.patch_threshold = 0.95 |
| OPTIONS.wipe_user_data = False |
| OPTIONS.omit_prereq = False |
| OPTIONS.extra_script = None |
| |
| def MostPopularKey(d, default): |
| """Given a dict, return the key corresponding to the largest |
| value. Returns 'default' if the dict is empty.""" |
| x = [(v, k) for (k, v) in d.iteritems()] |
| if not x: return default |
| x.sort() |
| return x[-1][1] |
| |
| |
| def IsSymlink(info): |
| """Return true if the zipfile.ZipInfo object passed in represents a |
| symlink.""" |
| return (info.external_attr >> 16) == 0120777 |
| |
| |
| |
| class Item: |
| """Items represent the metadata (user, group, mode) of files and |
| directories in the system image.""" |
| ITEMS = {} |
| def __init__(self, name, dir=False): |
| self.name = name |
| self.uid = None |
| self.gid = None |
| self.mode = None |
| self.dir = dir |
| |
| if name: |
| self.parent = Item.Get(os.path.dirname(name), dir=True) |
| self.parent.children.append(self) |
| else: |
| self.parent = None |
| if dir: |
| self.children = [] |
| |
| def Dump(self, indent=0): |
| if self.uid is not None: |
| print "%s%s %d %d %o" % (" "*indent, self.name, self.uid, self.gid, self.mode) |
| else: |
| print "%s%s %s %s %s" % (" "*indent, self.name, self.uid, self.gid, self.mode) |
| if self.dir: |
| print "%s%s" % (" "*indent, self.descendants) |
| print "%s%s" % (" "*indent, self.best_subtree) |
| for i in self.children: |
| i.Dump(indent=indent+1) |
| |
| @classmethod |
| def Get(cls, name, dir=False): |
| if name not in cls.ITEMS: |
| cls.ITEMS[name] = Item(name, dir=dir) |
| return cls.ITEMS[name] |
| |
| @classmethod |
| def GetMetadata(cls): |
| """Run the external 'fs_config' program to determine the desired |
| uid, gid, and mode for every Item object.""" |
| p = common.Run(["fs_config"], stdin=subprocess.PIPE, |
| stdout=subprocess.PIPE, stderr=subprocess.PIPE) |
| suffix = { False: "", True: "/" } |
| input = "".join(["%s%s\n" % (i.name, suffix[i.dir]) |
| for i in cls.ITEMS.itervalues() if i.name]) |
| output, error = p.communicate(input) |
| assert not error |
| |
| for line in output.split("\n"): |
| if not line: continue |
| name, uid, gid, mode = line.split() |
| i = cls.ITEMS[name] |
| i.uid = int(uid) |
| i.gid = int(gid) |
| i.mode = int(mode, 8) |
| if i.dir: |
| i.children.sort(key=lambda i: i.name) |
| |
| def CountChildMetadata(self): |
| """Count up the (uid, gid, mode) tuples for all children and |
| determine the best strategy for using set_perm_recursive and |
| set_perm to correctly chown/chmod all the files to their desired |
| values. Recursively calls itself for all descendants. |
| |
| Returns a dict of {(uid, gid, dmode, fmode): count} counting up |
| all descendants of this node. (dmode or fmode may be None.) Also |
| sets the best_subtree of each directory Item to the (uid, gid, |
| dmode, fmode) tuple that will match the most descendants of that |
| Item. |
| """ |
| |
| assert self.dir |
| d = self.descendants = {(self.uid, self.gid, self.mode, None): 1} |
| for i in self.children: |
| if i.dir: |
| for k, v in i.CountChildMetadata().iteritems(): |
| d[k] = d.get(k, 0) + v |
| else: |
| k = (i.uid, i.gid, None, i.mode) |
| d[k] = d.get(k, 0) + 1 |
| |
| # Find the (uid, gid, dmode, fmode) tuple that matches the most |
| # descendants. |
| |
| # First, find the (uid, gid) pair that matches the most |
| # descendants. |
| ug = {} |
| for (uid, gid, _, _), count in d.iteritems(): |
| ug[(uid, gid)] = ug.get((uid, gid), 0) + count |
| ug = MostPopularKey(ug, (0, 0)) |
| |
| # Now find the dmode and fmode that match the most descendants |
| # with that (uid, gid), and choose those. |
| best_dmode = (0, 0755) |
| best_fmode = (0, 0644) |
| for k, count in d.iteritems(): |
| if k[:2] != ug: continue |
| if k[2] is not None and count >= best_dmode[0]: best_dmode = (count, k[2]) |
| if k[3] is not None and count >= best_fmode[0]: best_fmode = (count, k[3]) |
| self.best_subtree = ug + (best_dmode[1], best_fmode[1]) |
| |
| return d |
| |
| def SetPermissions(self, script, renamer=lambda x: x): |
| """Append set_perm/set_perm_recursive commands to 'script' to |
| set all permissions, users, and groups for the tree of files |
| rooted at 'self'. 'renamer' turns the filenames stored in the |
| tree of Items into the strings used in the script.""" |
| |
| self.CountChildMetadata() |
| |
| def recurse(item, current): |
| # current is the (uid, gid, dmode, fmode) tuple that the current |
| # item (and all its children) have already been set to. We only |
| # need to issue set_perm/set_perm_recursive commands if we're |
| # supposed to be something different. |
| if item.dir: |
| if current != item.best_subtree: |
| script.append("set_perm_recursive %d %d 0%o 0%o %s" % |
| (item.best_subtree + (renamer(item.name),))) |
| current = item.best_subtree |
| |
| if item.uid != current[0] or item.gid != current[1] or \ |
| item.mode != current[2]: |
| script.append("set_perm %d %d 0%o %s" % |
| (item.uid, item.gid, item.mode, renamer(item.name))) |
| |
| for i in item.children: |
| recurse(i, current) |
| else: |
| if item.uid != current[0] or item.gid != current[1] or \ |
| item.mode != current[3]: |
| script.append("set_perm %d %d 0%o %s" % |
| (item.uid, item.gid, item.mode, renamer(item.name))) |
| |
| recurse(self, (-1, -1, -1, -1)) |
| |
| |
| def CopySystemFiles(input_zip, output_zip=None, |
| substitute=None): |
| """Copies files underneath system/ in the input zip to the output |
| zip. Populates the Item class with their metadata, and returns a |
| list of symlinks. output_zip may be None, in which case the copy is |
| skipped (but the other side effects still happen). substitute is an |
| optional dict of {output filename: contents} to be output instead of |
| certain input files. |
| """ |
| |
| symlinks = [] |
| |
| for info in input_zip.infolist(): |
| if info.filename.startswith("SYSTEM/"): |
| basefilename = info.filename[7:] |
| if IsSymlink(info): |
| symlinks.append((input_zip.read(info.filename), |
| "SYSTEM:" + basefilename)) |
| else: |
| info2 = copy.copy(info) |
| fn = info2.filename = "system/" + basefilename |
| if substitute and fn in substitute and substitute[fn] is None: |
| continue |
| if output_zip is not None: |
| if substitute and fn in substitute: |
| data = substitute[fn] |
| else: |
| data = input_zip.read(info.filename) |
| output_zip.writestr(info2, data) |
| if fn.endswith("/"): |
| Item.Get(fn[:-1], dir=True) |
| else: |
| Item.Get(fn, dir=False) |
| |
| symlinks.sort() |
| return symlinks |
| |
| |
| def AddScript(script, output_zip): |
| common.ZipWriteStr(output_zip, "META-INF/com/google/android/update-script", |
| "\n".join(script) + "\n") |
| |
| |
| def SignOutput(temp_zip_name, output_zip_name): |
| key_passwords = common.GetKeyPasswords([OPTIONS.package_key]) |
| pw = key_passwords[OPTIONS.package_key] |
| |
| common.SignFile(temp_zip_name, output_zip_name, OPTIONS.package_key, pw) |
| |
| |
| def SubstituteRoot(s): |
| if s == "system": return "SYSTEM:" |
| assert s.startswith("system/") |
| return "SYSTEM:" + s[7:] |
| |
| def FixPermissions(script): |
| Item.GetMetadata() |
| root = Item.Get("system") |
| root.SetPermissions(script, renamer=SubstituteRoot) |
| |
| def DeleteFiles(script, to_delete): |
| line = [] |
| t = 0 |
| for i in to_delete: |
| line.append(i) |
| t += len(i) + 1 |
| if t > 80: |
| script.append("delete " + " ".join(line)) |
| line = [] |
| t = 0 |
| if line: |
| script.append("delete " + " ".join(line)) |
| |
| def AppendAssertions(script, input_zip): |
| script.append('assert compatible_with("0.2") == "true"') |
| |
| device = GetBuildProp("ro.product.device", input_zip) |
| script.append('assert getprop("ro.product.device") == "%s" || ' |
| 'getprop("ro.build.product") == "%s"' % (device, device)) |
| |
| info = input_zip.read("OTA/android-info.txt") |
| m = re.search(r"require\s+version-bootloader\s*=\s*(\S+)", info) |
| if m: |
| bootloaders = m.group(1).split("|") |
| script.append("assert " + |
| " || ".join(['getprop("ro.bootloader") == "%s"' % (b,) |
| for b in bootloaders])) |
| |
| |
| def IncludeBinary(name, input_zip, output_zip, input_path=None): |
| try: |
| if input_path is not None: |
| data = open(input_path).read() |
| else: |
| data = input_zip.read(os.path.join("OTA/bin", name)) |
| common.ZipWriteStr(output_zip, name, data, perms=0755) |
| except IOError: |
| raise ExternalError('unable to include device binary "%s"' % (name,)) |
| |
| |
| def WriteFullOTAPackage(input_zip, output_zip): |
| script = [] |
| |
| if not OPTIONS.omit_prereq: |
| ts = GetBuildProp("ro.build.date.utc", input_zip) |
| script.append("run_program PACKAGE:check_prereq %s" % (ts,)) |
| IncludeBinary("check_prereq", input_zip, output_zip) |
| |
| AppendAssertions(script, input_zip) |
| |
| script.append("format BOOT:") |
| script.append("show_progress 0.1 0") |
| |
| try: |
| common.ZipWriteStr(output_zip, "radio.img", input_zip.read("RADIO/image")) |
| script.append("write_radio_image PACKAGE:radio.img") |
| except KeyError: |
| pass |
| |
| script.append("show_progress 0.5 0") |
| |
| if OPTIONS.wipe_user_data: |
| script.append("format DATA:") |
| |
| script.append("format SYSTEM:") |
| script.append("copy_dir PACKAGE:system SYSTEM:") |
| |
| symlinks = CopySystemFiles(input_zip, output_zip) |
| script.extend(["symlink %s %s" % s for s in symlinks]) |
| |
| common.BuildAndAddBootableImage(os.path.join(OPTIONS.input_tmp, "RECOVERY"), |
| "system/recovery.img", output_zip) |
| Item.Get("system/recovery.img", dir=False) |
| |
| FixPermissions(script) |
| |
| common.AddBoot(output_zip) |
| script.append("show_progress 0.2 0") |
| script.append("write_raw_image PACKAGE:boot.img BOOT:") |
| script.append("show_progress 0.2 10") |
| |
| if OPTIONS.extra_script is not None: |
| script.append(OPTIONS.extra_script) |
| |
| AddScript(script, output_zip) |
| |
| |
| class File(object): |
| def __init__(self, name, data): |
| self.name = name |
| self.data = data |
| self.size = len(data) |
| self.sha1 = sha.sha(data).hexdigest() |
| |
| def WriteToTemp(self): |
| t = tempfile.NamedTemporaryFile() |
| t.write(self.data) |
| t.flush() |
| return t |
| |
| def AddToZip(self, z): |
| common.ZipWriteStr(z, self.name, self.data) |
| |
| |
| def LoadSystemFiles(z): |
| """Load all the files from SYSTEM/... in a given target-files |
| ZipFile, and return a dict of {filename: File object}.""" |
| out = {} |
| for info in z.infolist(): |
| if info.filename.startswith("SYSTEM/") and not IsSymlink(info): |
| fn = "system/" + info.filename[7:] |
| data = z.read(info.filename) |
| out[fn] = File(fn, data) |
| return out |
| |
| |
| def Difference(tf, sf, diff_program): |
| """Return the patch (as a string of data) needed to turn sf into tf. |
| diff_program is the name of an external program (or list, if |
| additional arguments are desired) to run to generate the diff. |
| """ |
| |
| ttemp = tf.WriteToTemp() |
| stemp = sf.WriteToTemp() |
| |
| ext = os.path.splitext(tf.name)[1] |
| |
| try: |
| ptemp = tempfile.NamedTemporaryFile() |
| if isinstance(diff_program, list): |
| cmd = copy.copy(diff_program) |
| else: |
| cmd = [diff_program] |
| cmd.append(stemp.name) |
| cmd.append(ttemp.name) |
| cmd.append(ptemp.name) |
| p = common.Run(cmd) |
| _, err = p.communicate() |
| if err or p.returncode != 0: |
| print "WARNING: failure running %s:\n%s\n" % (diff_program, err) |
| return None |
| diff = ptemp.read() |
| finally: |
| ptemp.close() |
| stemp.close() |
| ttemp.close() |
| |
| return diff |
| |
| |
| def GetBuildProp(property, z): |
| """Return the fingerprint of the build of a given target-files |
| ZipFile object.""" |
| bp = z.read("SYSTEM/build.prop") |
| if not property: |
| return bp |
| m = re.search(re.escape(property) + r"=(.*)\n", bp) |
| if not m: |
| raise ExternalException("couldn't find %s in build.prop" % (property,)) |
| return m.group(1).strip() |
| |
| |
| def WriteIncrementalOTAPackage(target_zip, source_zip, output_zip): |
| script = [] |
| |
| print "Loading target..." |
| target_data = LoadSystemFiles(target_zip) |
| print "Loading source..." |
| source_data = LoadSystemFiles(source_zip) |
| |
| verbatim_targets = [] |
| patch_list = [] |
| largest_source_size = 0 |
| for fn in sorted(target_data.keys()): |
| tf = target_data[fn] |
| 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 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 |
| diff_method = "bsdiff" |
| if tf.name.endswith(".gz"): |
| diff_method = "imgdiff" |
| d = Difference(tf, sf, diff_method) |
| if d is not None: |
| print fn, tf.size, len(d), (float(len(d)) / tf.size) |
| 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((fn, tf.size)) |
| else: |
| common.ZipWriteStr(output_zip, "patch/" + fn + ".p", d) |
| patch_list.append((fn, tf, sf, tf.size)) |
| largest_source_size = max(largest_source_size, sf.size) |
| else: |
| # Target file identical to source. |
| pass |
| |
| total_verbatim_size = sum([i[1] for i in verbatim_targets]) |
| total_patched_size = sum([i[3] for i in patch_list]) |
| |
| source_fp = GetBuildProp("ro.build.fingerprint", source_zip) |
| target_fp = GetBuildProp("ro.build.fingerprint", target_zip) |
| |
| script.append(('assert file_contains("SYSTEM:build.prop", ' |
| '"ro.build.fingerprint=%s") == "true" || ' |
| 'file_contains("SYSTEM:build.prop", ' |
| '"ro.build.fingerprint=%s") == "true"') % |
| (source_fp, target_fp)) |
| |
| source_boot = File("/tmp/boot.img", |
| common.BuildBootableImage( |
| os.path.join(OPTIONS.source_tmp, "BOOT"))) |
| target_boot = File("/tmp/boot.img", |
| common.BuildBootableImage( |
| os.path.join(OPTIONS.target_tmp, "BOOT"))) |
| updating_boot = (source_boot.data != target_boot.data) |
| |
| source_recovery = File("system/recovery.img", |
| common.BuildBootableImage( |
| os.path.join(OPTIONS.source_tmp, "RECOVERY"))) |
| target_recovery = File("system/recovery.img", |
| common.BuildBootableImage( |
| os.path.join(OPTIONS.target_tmp, "RECOVERY"))) |
| updating_recovery = (source_recovery.data != target_recovery.data) |
| |
| source_radio = source_zip.read("RADIO/image") |
| target_radio = target_zip.read("RADIO/image") |
| updating_radio = (source_radio != target_radio) |
| |
| # The last 0.1 is reserved for creating symlinks, fixing |
| # permissions, and writing the boot image (if necessary). |
| progress_bar_total = 1.0 |
| if updating_boot: |
| progress_bar_total -= 0.1 |
| if updating_radio: |
| progress_bar_total -= 0.3 |
| |
| AppendAssertions(script, target_zip) |
| |
| pb_verify = progress_bar_total * 0.3 * \ |
| (total_patched_size / |
| float(total_patched_size+total_verbatim_size+1)) |
| |
| for i, (fn, tf, sf, size) in enumerate(patch_list): |
| if i % 5 == 0: |
| next_sizes = sum([i[3] for i in patch_list[i:i+5]]) |
| script.append("show_progress %f 1" % |
| (next_sizes * pb_verify / (total_patched_size+1),)) |
| script.append("run_program PACKAGE:applypatch -c /%s %s %s" % |
| (fn, tf.sha1, sf.sha1)) |
| |
| if updating_recovery: |
| d = Difference(target_recovery, source_recovery, "imgdiff") |
| print "recovery target: %d source: %d diff: %d" % ( |
| target_recovery.size, source_recovery.size, len(d)) |
| |
| common.ZipWriteStr(output_zip, "patch/recovery.img.p", d) |
| |
| script.append(("run_program PACKAGE:applypatch -c " |
| "MTD:recovery:%d:%s:%d:%s") % |
| (source_recovery.size, source_recovery.sha1, |
| target_recovery.size, target_recovery.sha1)) |
| |
| if updating_boot: |
| d = Difference(target_boot, source_boot, "imgdiff") |
| 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.append(("run_program PACKAGE:applypatch -c " |
| "MTD:boot:%d:%s:%d:%s") % |
| (source_boot.size, source_boot.sha1, |
| target_boot.size, target_boot.sha1)) |
| |
| if patch_list or updating_recovery or updating_boot: |
| script.append("run_program PACKAGE:applypatch -s %d" % |
| (largest_source_size,)) |
| script.append("copy_dir PACKAGE:patch CACHE:../tmp/patchtmp") |
| IncludeBinary("applypatch", target_zip, output_zip) |
| |
| script.append("\n# ---- start making changes here\n") |
| |
| if OPTIONS.wipe_user_data: |
| script.append("format DATA:") |
| |
| DeleteFiles(script, [SubstituteRoot(i[0]) for i in verbatim_targets]) |
| |
| 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.append(("run_program PACKAGE:applypatch " |
| "MTD:boot:%d:%s:%d:%s - " |
| "%s %d %s:/tmp/patchtmp/boot.img.p") |
| % (source_boot.size, source_boot.sha1, |
| target_boot.size, target_boot.sha1, |
| target_boot.sha1, |
| target_boot.size, |
| source_boot.sha1)) |
| print "boot image changed; including." |
| else: |
| print "boot image unchanged; skipping." |
| |
| if updating_recovery: |
| # Produce /system/recovery.img by applying a patch to the current |
| # contents of the recovery partition. |
| script.append(("run_program PACKAGE:applypatch MTD:recovery:%d:%s:%d:%s " |
| "/system/recovery.img %s %d %s:/tmp/patchtmp/recovery.img.p") |
| % (source_recovery.size, source_recovery.sha1, |
| target_recovery.size, target_recovery.sha1, |
| target_recovery.sha1, |
| target_recovery.size, |
| source_recovery.sha1)) |
| print "recovery image changed; including." |
| else: |
| print "recovery image unchanged; skipping." |
| |
| if updating_radio: |
| script.append("show_progress 0.3 10") |
| script.append("write_radio_image PACKAGE:radio.img") |
| common.ZipWriteStr(output_zip, "radio.img", target_radio) |
| print "radio image changed; including." |
| else: |
| print "radio image unchanged; skipping." |
| |
| pb_apply = progress_bar_total * 0.7 * \ |
| (total_patched_size / |
| float(total_patched_size+total_verbatim_size+1)) |
| for i, (fn, tf, sf, size) in enumerate(patch_list): |
| if i % 5 == 0: |
| next_sizes = sum([i[3] for i in patch_list[i:i+5]]) |
| script.append("show_progress %f 1" % |
| (next_sizes * pb_apply / (total_patched_size+1),)) |
| script.append(("run_program PACKAGE:applypatch " |
| "/%s - %s %d %s:/tmp/patchtmp/%s.p") % |
| (fn, tf.sha1, tf.size, sf.sha1, fn)) |
| |
| target_symlinks = CopySystemFiles(target_zip, None) |
| |
| target_symlinks_d = dict([(i[1], i[0]) for i in target_symlinks]) |
| temp_script = [] |
| FixPermissions(temp_script) |
| |
| # Note that this call will mess up the tree of Items, so make sure |
| # we're done with it. |
| source_symlinks = 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) |
| DeleteFiles(script, to_delete) |
| |
| if verbatim_targets: |
| pb_verbatim = progress_bar_total * \ |
| (total_verbatim_size / |
| float(total_patched_size+total_verbatim_size+1)) |
| script.append("show_progress %f 5" % (pb_verbatim,)) |
| script.append("copy_dir PACKAGE:system SYSTEM:") |
| |
| # 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)) |
| DeleteFiles(script, [i[1] for i in to_create]) |
| script.extend(["symlink %s %s" % s for s in to_create]) |
| |
| # Now that the symlinks are created, we can set all the |
| # permissions. |
| script.extend(temp_script) |
| |
| if OPTIONS.extra_script is not None: |
| script.append(OPTIONS.extra_script) |
| |
| AddScript(script, output_zip) |
| |
| |
| def main(argv): |
| |
| def option_handler(o, a): |
| if o in ("-b", "--board_config"): |
| common.LoadBoardConfig(a) |
| 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 |
| else: |
| return False |
| return True |
| |
| args = common.ParseOptions(argv, __doc__, |
| extra_opts="b:k:i:d:wne:", |
| extra_long_opts=["board_config=", |
| "package_key=", |
| "incremental_from=", |
| "wipe_user_data", |
| "no_prereq", |
| "extra_script="], |
| extra_option_handler=option_handler) |
| |
| if len(args) != 2: |
| common.Usage(__doc__) |
| sys.exit(1) |
| |
| if not OPTIONS.max_image_size: |
| print |
| print " WARNING: No board config specified; will not check image" |
| print " sizes against limits. Use -b to make sure the generated" |
| print " images don't exceed partition sizes." |
| print |
| |
| 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]) |
| 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) |
