Move GetBootImageTimestamp to common.
Test: TH Bug: 162623577 Change-Id: Icbd8b07dce91006a1abca1f0dc40726de8a10219
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@@ -21,8 +21,7 @@ import zipfile
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import ota_metadata_pb2
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from common import (ZipDelete, ZipClose, OPTIONS, MakeTempFile,
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ZipWriteStr, BuildInfo, LoadDictionaryFromFile,
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SignFile, PARTITIONS_WITH_CARE_MAP, PartitionBuildProps,
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MakeTempDir, RunAndCheckOutput, ExternalError)
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SignFile, PARTITIONS_WITH_CARE_MAP, PartitionBuildProps)
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logger = logging.getLogger(__name__)
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@@ -41,10 +40,6 @@ METADATA_NAME = 'META-INF/com/android/metadata'
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METADATA_PROTO_NAME = 'META-INF/com/android/metadata.pb'
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UNZIP_PATTERN = ['IMAGES/*', 'META/*', 'OTA/*', 'RADIO/*']
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# See sysprop.mk. If file is moved, add new search paths here; don't remove
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# existing search paths.
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RAMDISK_BUILD_PROP_REL_PATHS = ['system/etc/ramdisk/build.prop']
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def FinalizeMetadata(metadata, input_file, output_file, needed_property_files):
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"""Finalizes the metadata and signs an A/B OTA package.
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@@ -567,55 +562,3 @@ def SignOutput(temp_zip_name, output_zip_name):
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SignFile(temp_zip_name, output_zip_name, OPTIONS.package_key, pw,
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whole_file=True)
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def GetBootImageTimestamp(boot_img):
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"""
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Get timestamp from ramdisk within the boot image
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Args:
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boot_img: the boot image file. Ramdisk must be compressed with lz4 format.
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Return:
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An integer that corresponds to the timestamp of the boot image, or None
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if file has unknown format. Raise exception if an unexpected error has
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occurred.
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"""
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tmp_dir = MakeTempDir('boot_', suffix='.img')
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try:
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RunAndCheckOutput(['unpack_bootimg', '--boot_img', boot_img, '--out', tmp_dir])
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ramdisk = os.path.join(tmp_dir, 'ramdisk')
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if not os.path.isfile(ramdisk):
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logger.warning('Unable to get boot image timestamp: no ramdisk in boot')
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return None
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uncompressed_ramdisk = os.path.join(tmp_dir, 'uncompressed_ramdisk')
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RunAndCheckOutput(['lz4', '-d', ramdisk, uncompressed_ramdisk])
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abs_uncompressed_ramdisk = os.path.abspath(uncompressed_ramdisk)
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extracted_ramdisk = MakeTempDir('extracted_ramdisk')
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# Use "toybox cpio" instead of "cpio" because the latter invokes cpio from
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# the host environment.
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RunAndCheckOutput(['toybox', 'cpio', '-F', abs_uncompressed_ramdisk, '-i'],
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cwd=extracted_ramdisk)
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prop_file = None
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for search_path in RAMDISK_BUILD_PROP_REL_PATHS:
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prop_file = os.path.join(extracted_ramdisk, search_path)
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if os.path.isfile(prop_file):
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break
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logger.warning('Unable to get boot image timestamp: no %s in ramdisk', search_path)
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if not prop_file:
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return None
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props = PartitionBuildProps.FromBuildPropFile('boot', prop_file)
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timestamp = props.GetProp('ro.bootimage.build.date.utc')
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if timestamp:
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return int(timestamp)
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logger.warning('Unable to get boot image timestamp: ro.bootimage.build.date.utc is undefined')
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return None
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except ExternalError as e:
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logger.warning('Unable to get boot image timestamp: %s', e)
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return None
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