+#! /bin/sh
+#
+# Original script available in the libhybris project:
+# https://github.com/libhybris/libhybris/blob/master/utils/extract-headers.sh
+#
+
+ANDROID_ROOT=$1
+HEADERPATH=$2
+MAJOR=$3
+MINOR=$4
+
+PATCH=$5
+PATCH2=$6
+PATCH3=$7
+
+if [ x$ANDROID_ROOT = x -o "x$HEADERPATH" = x ]; then
+ echo "Syntax: extract-headers.sh ANDROID_ROOT HEADERPATH [MAJOR] [MINOR] [PATCH] [PATCH2] [PATCH3]"
+ exit 1
+fi
+
+
+if [ x$MAJOR = x -o x$MINOR = x -o x$PATCH = x ]; then
+ VERSION_DEFAULTS=$ANDROID_ROOT/build/core/version_defaults.mk
+
+ parse_defaults_failed() {
+ echo "Error: Cannot read PLATFORM_VERSION from ${VERSION_DEFAULTS}."
+ echo "Please specify MAJOR, MINOR and PATCH manually to continue."
+ exit 1
+ }
+
+ if [ ! -f $VERSION_DEFAULTS ]; then
+ parse_defaults_failed
+ fi
+
+ PLATFORM_VERSION=$(egrep -o "PLATFORM_VERSION := [0-9.]+" $VERSION_DEFAULTS | awk '{ print $3 }')
+ if [ x$PLATFORM_VERSION = x ]; then
+ parse_defaults_failed
+ fi
+
+ MAJOR=$(echo $PLATFORM_VERSION | cut -d. -f1)
+ MINOR=$(echo $PLATFORM_VERSION | cut -d. -f2)
+ PATCH=$(echo $PLATFORM_VERSION | cut -d. -f3)
+ PATCH2=$(echo $PLATFORM_VERSION | cut -d. -f4)
+ PATCH3=$(echo $PLATFORM_VERSION | cut -d. -f5)
+
+ if [ x$MAJOR = x -o x$MINOR = x -o x$PATCH = x ]; then
+ parse_defaults_failed
+ fi
+
+ echo -n "Auto-detected version: ${MAJOR}.${MINOR}.${PATCH}"
+ if [ x$PATCH3 != x ]; then
+ echo ".${PATCH2}.${PATCH3}"
+ elif [ x$PATCH2 != x ]; then
+ echo ".${PATCH2}"
+ else
+ echo ""
+ fi
+fi
+
+# Make sure that the dir given contains at least some of the assumed structures.
+if [ ! -d "$ANDROID_ROOT/hardware/libhardware/include/hardware/" ]; then
+ echo "Given Android root dir '$ANDROID_ROOT/hardware/libhardware/include/hardware/' doesn't exist."
+ exit 1
+fi
+
+mkdir -p $HEADERPATH
+
+if [ x$PATCH2 = x ]; then
+ PATCH2=0
+fi
+
+if [ x$PATCH3 = x ]; then
+ PATCH3=0
+fi
+
+cat > $HEADERPATH/android-version.h << EOF
+#ifndef ANDROID_VERSION_H_
+#define ANDROID_VERSION_H_
+
+#define ANDROID_VERSION_MAJOR $MAJOR
+#define ANDROID_VERSION_MINOR $MINOR
+#define ANDROID_VERSION_PATCH $PATCH
+#define ANDROID_VERSION_PATCH2 $PATCH2
+#define ANDROID_VERSION_PATCH3 $PATCH3
+
+#endif
+EOF
+
+mkdir -p $HEADERPATH/hardware/
+cp $ANDROID_ROOT/hardware/libhardware/include/hardware/* $HEADERPATH/hardware/
+
+mkdir -p $HEADERPATH/hardware_legacy/
+cp $ANDROID_ROOT/hardware/libhardware_legacy/include/hardware_legacy/audio_policy_conf.h $HEADERPATH/hardware_legacy/
+
+mkdir -p $HEADERPATH/cutils/
+cp $ANDROID_ROOT/system/core/include/cutils/* $HEADERPATH/cutils/
+
+mkdir -p $HEADERPATH/system/
+cp $ANDROID_ROOT/system/core/include/system/* $HEADERPATH/system/
+
+mkdir -p $HEADERPATH/android/
+cp $ANDROID_ROOT/system/core/include/android/* $HEADERPATH/android/
+
+if [ -e $ANDROID_ROOT/external/kernel-headers/original/linux/sync.h ]; then
+ mkdir -p $HEADERPATH/linux
+ cp $ANDROID_ROOT/external/kernel-headers/original/linux/sync.h $HEADERPATH/linux
+ cp $ANDROID_ROOT/external/kernel-headers/original/linux/sw_sync.h $HEADERPATH/linux
+fi
+
+if [ -e $ANDROID_ROOT/system/core/include/sync/sync.h ]; then
+ mkdir -p $HEADERPATH/sync/
+ cp $ANDROID_ROOT/system/core/include/sync/* $HEADERPATH/sync/
+fi
+
+if [ -e $ANDROID_ROOT/external/libnfc-nxp/inc/phNfcConfig.h ]; then
+ mkdir -p $HEADERPATH/libnfc-nxp/
+ cp $ANDROID_ROOT/external/libnfc-nxp/inc/*.h $HEADERPATH/libnfc-nxp/
+ cp $ANDROID_ROOT/external/libnfc-nxp/src/*.h $HEADERPATH/libnfc-nxp/
+fi
+
+mkdir -p $HEADERPATH/private
+cp $ANDROID_ROOT/system/core/include/private/android_filesystem_config.h $HEADERPATH/private
+
+exit 0