From a370d9865cfb7bb9cdc3359a0b9255b53711aef8 Mon Sep 17 00:00:00 2001
From: JBBgameich <jbbgameich@gmail.com>
Date: Tue, 2 Jan 2018 15:48:31 +0100
Subject: [PATCH] Support flashing the rootfs to the system partition

---
 functions/core.sh | 13 ++++++++++++-
 halium-install    |  4 ++++
 2 files changed, 16 insertions(+), 1 deletion(-)

diff --git a/functions/core.sh b/functions/core.sh
index c6a58c9..cf51193 100644
--- a/functions/core.sh
+++ b/functions/core.sh
@@ -17,6 +17,10 @@ function convert_androidimage() {
 	simg2img $AND_IMAGE system.img
 }
 
+function rootfs_sparse() {
+	img2simg rootfs.img rootfs.sparse.img
+}
+
 function shrink_images() {
 	sudo e2fsck -fy system.img >/dev/null
 	sudo resize2fs -p -M system.img
@@ -28,7 +32,13 @@ function unmount() {
 
 function flash() {
 	adb push system.img /data/system.img
-	adb push rootfs.img /data/rootfs.img
+
+	if [ -f rootfs.sparse.img ]; then
+		adb reboot bootloader
+		fastboot flash rootfs.sparse.img
+	else
+		adb push rootfs.img /data/rootfs.img
+	fi
 }
 
 function clean() {
@@ -36,5 +46,6 @@ function clean() {
 	sudo rm rootfs -rf
 
 	sudo rm rootfs.img
+	if [ -f rootfs.sparse.img ]; then rm rootfs.sparse.img; fi
 	sudo rm system.img
 }
diff --git a/halium-install b/halium-install
index 308adb6..f25c3dc 100755
--- a/halium-install
+++ b/halium-install
@@ -75,6 +75,10 @@ spinner $!
 echo "I: Shrinking images"
 shrink_images
 
+echo "I: Making rootfs.img sparse for flashing"
+rootfs_sparse &>/dev/null &
+spinner $!
+
 echo "I: Pushing rootfs and android image to /data via ADB"
 flash