extract_files: Add initial blueprint creation

Start the copyrights for these at 2019 because the blueprints won't
have existed before then.

Change-Id: I5300109949785dd19555e35d17a1e80daef498b0

build/tools/extract_utils.sh

@@ -85,6 +85,7 @@ function setup_vendor() {
     fi
 
     export PRODUCTMK="$LINEAGE_ROOT"/"$OUTDIR"/"$VNDNAME"-vendor.mk
+    export ANDROIDBP="$LINEAGE_ROOT"/"$OUTDIR"/Android.bp
     export ANDROIDMK="$LINEAGE_ROOT"/"$OUTDIR"/Android.mk
     export BOARDMK="$LINEAGE_ROOT"/"$OUTDIR"/BoardConfigVendor.mk
 
@@ -456,8 +457,8 @@ function write_packages() {
 #
 # write_product_packages:
 #
-# This function will create BUILD_PREBUILT entries in the
-# Android.mk and associated PRODUCT_PACKAGES list in the
+# This function will create prebuilt entries in the
+# Android.bp and associated PRODUCT_PACKAGES list in the
 # product makefile for all files in the blob list which
 # start with a single dash (-) character.
 #
@@ -683,7 +684,7 @@ function write_product_packages() {
 }
 
 #
-# write_header:
+# write_blueprint_header:
 #
 # $1: file which will be written to
 #
@@ -691,7 +692,61 @@ function write_product_packages() {
 # note that this is not an append operation, and should
 # be executed first!
 #
-function write_header() {
+function write_blueprint_header() {
+    if [ -f $1 ]; then
+        rm $1
+    fi
+
+    YEAR=$(date +"%Y")
+
+    [ "$COMMON" -eq 1 ] && local DEVICE="$DEVICE_COMMON"
+
+    printf "/**\n" > $1
+    NUM_REGEX='^[0-9]+$'
+    if [[ ! $INITIAL_COPYRIGHT_YEAR =~ $NUM_REGEX ]] || [ $INITIAL_COPYRIGHT_YEAR -lt 2019 ]; then
+        BLUEPRINT_INITIAL_COPYRIGHT_YEAR=2019
+    else
+        BLUEPRINT_INITIAL_COPYRIGHT_YEAR=$INITIAL_COPYRIGHT_YEAR
+    fi
+
+    if [ $BLUEPRINT_INITIAL_COPYRIGHT_YEAR -eq $YEAR ]; then
+        printf " * Copyright (C) $YEAR The LineageOS Project\n" >> $1
+    elif [ $BLUEPRINT_INITIAL_COPYRIGHT_YEAR -le 2019 ]; then
+        printf " * Copyright (C) 2019-$YEAR The LineageOS Project\n" >> $1
+    else
+        printf " * Copyright (C) $BLUEPRINT_INITIAL_COPYRIGHT_YEAR-$YEAR The LineageOS Project\n" >> $1
+    fi
+
+    cat << EOF >> $1
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ * This file is generated by device/$VENDOR/$DEVICE/setup-makefiles.sh
+ */
+
+EOF
+}
+
+#
+# write_makefile_header:
+#
+# $1: file which will be written to
+#
+# writes out the copyright header with the current year.
+# note that this is not an append operation, and should
+# be executed first!
+#
+function write_makefile_header() {
     if [ -f $1 ]; then
         rm $1
     fi
@@ -745,12 +800,12 @@ EOF
 # $1: devices falling under common to be added to guard - optional
 # $2: custom guard - optional
 #
-# Calls write_header for each of the makefiles and creates
-# the initial path declaration and device guard for the
-# Android.mk
+# Calls write_makefile_header for each of the makefiles and
+# write_blueprint_header for Android.bp and creates the initial
+# path declaration and device guard for the Android.mk
 #
 function write_headers() {
-    write_header "$ANDROIDMK"
+    write_makefile_header "$ANDROIDMK"
 
     GUARD="$2"
     if [ -z "$GUARD" ]; then
@@ -777,8 +832,22 @@ ifneq (\$(filter $1,\$($GUARD)),)
 EOF
     fi
 
-    write_header "$BOARDMK"
-    write_header "$PRODUCTMK"
+    write_makefile_header "$BOARDMK"
+    write_makefile_header "$PRODUCTMK"
+    write_blueprint_header "$ANDROIDBP"
+
+    cat << EOF >> "$ANDROIDBP"
+soong_namespace {
+}
+
+EOF
+
+    [ "$COMMON" -eq 1 ] && local DEVICE="$DEVICE_COMMON"
+    cat << EOF >> "$PRODUCTMK"
+PRODUCT_SOONG_NAMESPACES += \\
+    vendor/$VENDOR/$DEVICE
+
+EOF
 }
 
 #
@@ -881,7 +950,7 @@ function parse_file_list() {
 # $2: make treble compatible makefile - optional
 #
 # Calls write_product_copy_files and write_product_packages on
-# the given file and appends to the Android.mk as well as
+# the given file and appends to the Android.bp as well as
 # the product makefile.
 #
 function write_makefiles() {