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#!/bin/bash
# Copyright (c) 2018, The Linux Foundation. All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are
# met:
# * Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# * Redistributions in binary form must reproduce the above
# copyright notice, this list of conditions and the following
# disclaimer in the documentation and/or other materials provided
# with the distribution.
# * Neither the name of The Linux Foundation nor the names of its
# contributors may be used to endorse or promote products derived
# from this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
# WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
# BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
# BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
# OR OTHERWISE) ARISING IN ANY WAY OUT OF THE US
# This file is used to generate blueprint/makefiles for the vendor hals
# Sanitize host tools
LS=`which ls`
LS=${LS:-ls}
MV=`which mv`
MV=${MV:-mv}
CAT=`which cat`
CAT=${CAT:-cat}
CUT=`which cut`
CUT=${CUT:-cut}
REV=`which rev`
REV=${REV:-rev}
SED=`which sed`
SED=${SED:-sed}
DIFF=`which diff`
DIFF=${DIFF:-diff}
ECHO=`which echo`
ECHO=${ECHO:-echo}
FIND=`which find`
FIND=${FIND:-find}
GREP=`which grep`
GREP=${GREP:-grep}
SORT=`which sort`
SORT=${SORT:-sort}
TOUCH=`which touch`
TOUCH=${TOUCH:-touch}
function generate_make_files() {
local dir_path="$ANDROID_BUILD_TOP/$1"
pushd $dir_path > /dev/null
# Due to same package name in different folders we need to detect
# opensource case so that it can be handled.
local flag_opensource=false
if ${ECHO} "$dir_path" | ${GREP} "opensource" > /dev/null;then
flag_opensource=true
fi
# Search for all HAL files in given dir.
local halFilePaths=`${ECHO} $(${FIND} -iname "*.hal" | ${SORT})`
#Store package name in below array to create a unique set so that we trigger
#hidl-gen only once for a given package.
package_collection=()
#Iterate over identified .hal Paths
local prev_path=""
for file in $halFilePaths; do
local hal_path=`${ECHO} "$file" | ${REV} | ${CUT} -d"/" -f2- | ${REV}`
if [ -e "$hal_path/Android.bp" ] && [ ! -e "$hal_path/.hidl-autogen" ]; then
if [ ! "$hal_path" = "$prev_path" ]; then
${ECHO} "Skipping hidl-gen on $1/$hal_path as Android.bp is not compile-time generated"
prev_path="$hal_path"
fi
continue;
fi
prev_path="$hal_path"
# Find out package name from HAL file
local hal_package=`${ECHO} $(${CAT} $file | ${GREP} -E -m 1 "^package ") | ${CUT} -d' ' -f2`
# Get rid of extra delimter
hal_package=${hal_package%?}
#Check if we already executed hidl-gen for a given package
if ${ECHO} "${package_collection[@]}" | ${GREP} -w $hal_package > /dev/null; then
continue;
else
package_collection+=($hal_package)
local delimeter=`${ECHO} "$file" | ${CUT} -d'/' -f2`
local root=`${ECHO} "$hal_package" | ${SED} "s/$delimeter/#/g" | ${CUT} -d'#' -f1`
#Identify Package Root
root=${root%?}
#Create root arguments for hidl-command
local root_arguments="-r $root:$1 -r $2"
fi
local hal_path2=$1;
#Handling for opensource HAL to solve package name conflict
if [ "$flag_opensource" = true ]; then
root="$root.$delimeter"
hal_path2="$hal_path2/$delimeter"
fi
local root_arguments="-r $root:$hal_path2 -r $2"
update_check=0
if [ -e "$hal_path/Android.bp" ]; then
${MV} $hal_path/Android.bp $hal_path/.hidl-autogen
update_check=1
fi
${TOUCH} $hal_path/.hidl-autogen
${ECHO} -n "Running hidl-gen on $hal_package: "
hidl-gen -Landroidbp $root_arguments $hal_package;
rc=$?; if [[ $rc != 0 ]]; then return $rc; fi
if [ "$update_check" -eq 1 ]; then
${DIFF} -q $hal_path/Android.bp $hal_path/.hidl-autogen > /dev/null
if [ $? -eq 0 ]; then
${ECHO} "no changes"
${MV} $hal_path/.hidl-autogen $hal_path/Android.bp
else
${ECHO} "updated"
fi
else
${ECHO} "created"
fi
${TOUCH} $hal_path/.hidl-autogen
done
popd > /dev/null
}
function start_script_for_interfaces {
#Find interfaces in workspace
local interfaces=$(${LS} -d ${ANDROID_BUILD_TOP}/vendor/qcom/*/interfaces)
${ECHO} "HIDL interfaces: Scanning for changes..."
for interface in $interfaces; do
#generate interfaces
local relative_interface=${interface#${ANDROID_BUILD_TOP}/}
generate_make_files $relative_interface "android.hidl:system/libhidl/transport"
if [ $? -ne 0 ] ; then
${ECHO} "HIDL interfaces: Update Failed"
return 1;
fi
done
${ECHO} "HIDL interfaces: Update complete."
}
#Start script for interfaces
start_script_for_interfaces
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