package build.tools.releasetools

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Used in: ApexMetadata

• string package_name = 1

• int64 version = 2

• bool is_compressed = 3

• int64 decompressed_size = 4

• int64 source_version = 5

  Used in OTA

Just a container to hold repeated apex_info, so that we can easily serialize a list of apex_info to string.

• repeated ApexInfo apex_info = 1

The build information on the device. The bytes of the running images are thus inferred from the device state. For more information of the meaning of each subfield, check https://source.android.com/compatibility/android-cdd#3_2_2_build_parameters

Used in: OtaMetadata

• repeated string device = 1

  device name. i.e. ro.product.device; if the field has multiple values, it means the ota package supports multiple devices. This usually happens when we use the same image to support multiple skus.

• repeated string build = 2

  device fingerprint. Up to R build, the value reads from ro.build.fingerprint.

• string build_incremental = 3

  A value that specify a version of the android build.

• int64 timestamp = 4

  The timestamp when the build is generated.

• string sdk_level = 5

  The version of the currently-executing Android system.

• string security_patch_level = 6

  A value indicating the security patch level of a build.

• repeated PartitionState partition_state = 7

  The detailed state of each partition. For partial updates or devices with mixed build of partitions, some of the above fields may left empty. And the client will rely on the information of specific partitions to target the update.

The metadata of an OTA package. It contains the information of the package and prerequisite to install the update correctly.

• OtaMetadata.OtaType type = 1

• bool wipe = 2

  True if we need to wipe after the update.

• bool downgrade = 3

  True if the timestamp of the post build is older than the pre build.

• map<string, string> property_files = 4

  A map of name:content of property files, e.g. ota-property-files.

• optional DeviceState precondition = 5

  The required device state in order to install the package.

• optional DeviceState postcondition = 6

  The expected device state after the update.

• bool retrofit_dynamic_partitions = 7

  True if the ota that updates a device to support dynamic partitions, where the source build doesn't support it.

• int64 required_cache = 8

  The required size of the cache partition, only valid for non-A/B update.

• bool spl_downgrade = 9

  True iff security patch level downgrade is permitted on this OTA.

Used in: OtaMetadata

• UNKNOWN = 0

• AB = 1

• BLOCK = 2

• BRICK = 3

The build information of a particular partition on the device.

Used in: DeviceState

• string partition_name = 1

• repeated string device = 2

• repeated string build = 3

• string version = 4

  The version string of the partition. It's usually timestamp if present. One known exception is the boot image, who uses the kmi version, e.g. 5.4.42-android12-0