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#!/bin/bash
#TODO(b/35570956): Do with Soong instead.
#Note: see do_makefiles_update below.
function package_root_to_package() {
echo $1 | cut -f1 -d:
}
function package_root_to_root() {
echo $1 | cut -f2 -d:
}
##
# Makes sure the appropriate directories are visible.
# Usage: check_dirs root_or_cwd [package:root ...]
function check_dirs() {
local root_or_cwd=$1
shift 1
for package_root in "$@"; do
dir=$(package_root_to_root $package_root)
if [ ! -d $root_or_cwd$dir ] ; then
echo "Where is $dir?";
return 1;
fi
done
}
##
# Gets all packages in a directory.
# Usage: get_packages package root
function get_packages() {
local current_dir=$1
local current_package=$2
pushd $current_dir > /dev/null;
find . -type f -name \*.hal -exec dirname {} \; | sort -u | \
cut -c3- | \
awk -F'/' \
'{printf("'$current_package'"); for(i=1;i<NF;i++){printf(".%s", $i);}; printf("@%s\n", $NF);}';
popd > /dev/null;
}
##
# Package roots to arguments.
# Usage: get_root_arguments [package:root ...]
function get_root_arguments() {
for package_root in "$@"; do
printf "%s" "-r$package_root "
done
}
##
# Returns directory path for a package
# Usage: get_package_dir package_root_dir package_prefix package
function get_package_dir() {
local package_dir=`echo $3 | cut -f1 -d@ | sed "s/$2\.//" | sed "s/\./\//g"`
local package_version=`echo $3 | cut -f2 -d@`
echo $1/$package_dir/$package_version
}
##
# Returns the number of processors to run on, on this machine
function get_num_processors() {
if command -v nproc >/dev/null 2>&1; then
PROCS=$(nproc --all 2>/dev/null) && echo $PROCS && return 0
elif command -v sysctl >/dev/null 2>&1; then
PROCS=$(sysctl -n hw.logicalcpu 2>/dev/null) && echo $PROCS && return 0
fi
echo 1
}
##
# Helps manage the package root of a HAL directory.
# Should be called from the android root directory.
#
# Usage: do_makefiles_update [-O owner-name] [package:root ...]
# Where the first package root is the current one.
#
function do_makefiles_update() {
if ! command -v hidl-gen 1>/dev/null; then
echo "Cannot find hidl-gen, try lunching or making it ('m hidl-gen')?"
exit 1
fi
local owner=
if [[ "$1" = "-O" ]]; then
owner="$2"
shift 2
fi
local root_or_cwd=${ANDROID_BUILD_TOP%%/}${ANDROID_BUILD_TOP:+/}
local current_package=$(package_root_to_package $1)
local current_dir=$root_or_cwd$(package_root_to_root $1)
echo "Updating makefiles for $current_package in $current_dir."
check_dirs "$root_or_cwd" $@ || return 1
local packages=$(get_packages $current_dir $current_package) || return 1
local root_arguments=$(get_root_arguments $@) || return 1
function __update_internal() {
local owner="$1"
local root_arguments="$2"
local package="$3"
echo "Updating $package"
hidl-gen -O "$owner" -Landroidbp $root_arguments $package || {
echo "Command failed: hidl-gen -O \"$owner\" -Landroidbp $root_arguments $package";
return 1;
}
}
export -f __update_internal
echo "$packages" |\
xargs -P $(get_num_processors) -I {} \
bash -c "__update_internal \"$owner\" \"$root_arguments\" \"{}\"" || return 1
}
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