Merge "Update kzip script to support superproject revision environment variable"

# The following environment variables affect the result:

#   BUILD_NUMBER          build number, used to generate unique ID (will use UUID if not set)

#   SUPERPROJECT_SHA      superproject sha, used to generate unique id (will use BUILD_NUMBER if not set)

#   SUPERPROJECT_REVISION superproject revision, used for unique id if defined as a sha

#   KZIP_NAME             name of the output file (will use SUPERPROJECT_REVISION|SUPERPROJECT_SHA|BUILD_NUMBER|UUID if not set)

#   DIST_DIR              where the resulting all.kzip will be placed

#   KYTHE_KZIP_ENCODING   proto or json (proto is default)

#   KYTHE_JAVA_SOURCE_BATCH_SIZE maximum number of the Java source files in a compilation unit

#   TARGET_PRODUCT        target device name, e.g., 'aosp_blueline'

#   XREF_CORPUS           source code repository URI, e.g., 'android.googlesource.com/platform/superproject'

: ${BUILD_NUMBER:=$(uuidgen)}

: ${SUPERPROJECT_SHA:=$BUILD_NUMBER}

# If the SUPERPROJECT_REVISION is defined as a sha, use this as the default value if no

# SUPERPROJECT_SHA is specified.

if [[ $SUPERPROJECT_REVISION =~ [0-9a-f]{40} ]]; then

  : ${KZIP_NAME:=${SUPERPROJECT_REVISION:-}}

fi

: ${KZIP_NAME:=${SUPERPROJECT_SHA:-}}

: ${KZIP_NAME:=${BUILD_NUMBER:-}}

: ${KZIP_NAME:=$(uuidgen)}

: ${KYTHE_JAVA_SOURCE_BATCH_SIZE:=500}

: ${KYTHE_KZIP_ENCODING:=proto}

: ${XREF_CORPUS:?should be set}

# Pack

# TODO(asmundak): this should be done by soong.

declare -r allkzip="$SUPERPROJECT_SHA.kzip"

declare -r allkzip="$KZIP_NAME.kzip"

"$out/soong/host/linux-x86/bin/merge_zips" "$DIST_DIR/$allkzip" @<(find "$out" -name '*.kzip')