upload android base code part6

android/system/tools/hidl/update-makefiles-helper.sh

@@ -0,0 +1,126 @@
+#!/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
+      echo "-r $package_root"
+  done
+}
+
+##
+# Subdirectories of a directory which contain Android.bps
+# Note, does not return Android.bp in the current directory.
+#
+# Usage: get_bp_dirs dir
+function get_bp_dirs() {
+  find $1/*                          \
+    -mindepth 1                      \
+    -name "Android.bp"               \
+    -printf "%H\n"                   \
+    | sort | uniq
+}
+
+##
+# 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/$package_version
+}
+
+##
+# Helps manage the package root of a HAL directory.
+# Should be called from the android root directory.
+#
+# Usage: do_makefiles_update [package:root ...]
+# Where the first package root is the current one.
+#
+function do_makefiles_update() {
+  local root_or_cwd=${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
+
+  for p in $packages; do
+    echo "Updating $p";
+    local additional_options=
+    if [[ -f $(get_package_dir $current_dir $current_package $p)/.hidl_for_test ]]; then additional_options="-t"; fi
+    hidl-gen -Lmakefile $root_arguments $p;
+    rc=$?; if [[ $rc != 0 ]]; then return $rc; fi
+    hidl-gen -Landroidbp $root_arguments $additional_options $p;
+    rc=$?; if [[ $rc != 0 ]]; then return $rc; fi
+  done
+
+  local android_dirs=$(get_bp_dirs $current_dir) || return 1
+
+  echo "Updating Android.bp files."
+
+  for bp_dir in $android_dirs; do
+    bp="$bp_dir/Android.bp"
+    # locations of Android.bp files in specific subdirectory of frameworks/hardware/interfaces
+    android_bps=$(find $bp_dir                   \
+                  -name "Android.bp"             \
+                  ! -path $bp_dir/Android.bp     \
+                  -printf "%h\n"                 \
+                  | sort)
+
+    echo "// This is an autogenerated file, do not edit." > "$bp";
+    echo "subdirs = [" >> "$bp";
+    for a in $android_bps; do
+      echo "    \"${a#$bp_dir/}\"," >> "$bp";
+    done
+    echo "]" >> "$bp";
+  done
+}