Android Auto: Helper script to disable liboemcrypto.sh

liboemcrypto-disable.sh

@@ -0,0 +1,43 @@
+#!/bin/bash
+
+set -o errexit -o pipefail
+
+source "$(dirname ${BASH_SOURCE[0]})/common.sh"
+
+cd $(dirname ${BASH_SOURCE[0]})/..
+
+[[ ! -z "$TARGET_PRODUCT" ]] || user_error "TARGET_PRODUCT not set. Please prepare env."
+
+PROP_FILE=vendor/google_devices/$TARGET_PRODUCT/proprietary/Android.bp
+
+[[ -f "$PROP_FILE" ]] || user_error "Please download proprietary files for $TARGET_PRODUCT first."
+
+LINE_NUMBER=$(grep -n "name: \"liboemcrypto" vendor/google_devices/$TARGET_PRODUCT/proprietary/Android.bp | awk -F: '{print $1}')
+
+TMPFILE_PRE=$(mktemp)
+TMPFILE_POST=$(mktemp)
+TMPFILE_NEW=$(mktemp)
+trap 'rm -- "$TMPFILE_PRE" "$TMPFILE_POST" "$TMPFILE_NEW"' EXIT
+
+head -n $LINE_NUMBER $PROP_FILE > $TMPFILE_PRE
+tail -n +$((LINE_NUMBER+1)) $PROP_FILE > $TMPFILE_POST
+
+LAST_EMPTY_LINE=$(grep -E --line-number --with-filename '^$' $TMPFILE_PRE | tail -n1 | awk -F: '{print $2}')
+FIRST_EMPTY_LINE=$(grep -E --line-number --with-filename '^$' $TMPFILE_POST | head -n1 | awk -F: '{print $2}')
+
+if [ "$(tail -n +$((LAST_EMPTY_LINE+1)) $TMPFILE_PRE | head -n1)" = "/*" ] ; then
+    echo "Already disabled"
+    exit
+fi
+
+head $TMPFILE_PRE -n $LAST_EMPTY_LINE > $TMPFILE_NEW
+echo "/*" >> $TMPFILE_NEW
+tail -n +$((LAST_EMPTY_LINE+1)) $TMPFILE_PRE >> $TMPFILE_NEW
+
+head $TMPFILE_POST -n $((FIRST_EMPTY_LINE-1)) >> $TMPFILE_NEW
+echo "*/" >> $TMPFILE_NEW
+tail -n +$FIRST_EMPTY_LINE $TMPFILE_POST >> $TMPFILE_NEW
+
+cat $TMPFILE_NEW > $PROP_FILE
+
+echo "Successfully disabled"