Add a script to push updates

Useful to test OTA updates without setting up a server.

Change-Id: Ic4c2dc1ea9ce6bd6ec6750d1c4250079a5be7580

push-update.sh

+#!/bin/sh
+
+updates_dir=/data/lineageos_updates
+
+if [ ! -f "$1" ]; then
+   echo "Usage: $0 ZIP [UNVERIFIED]"
+   echo "Push ZIP to $updates_dir and add it to Updater"
+   echo
+   echo "The name of ZIP is assumed to have lineage-VERSION-DATE-TYPE-* as format"
+   echo "If UNVERIFIED is set, the app will verify the update"
+   exit
+fi
+zip_path=`realpath "$1"`
+
+if [ "`adb get-state 2>/dev/null`" != "device" ]; then
+    echo "No device found. Waiting for one..."
+    adb wait-for-device
+fi
+if ! adb root; then
+    echo "Could not run adbd as root"
+    exit 1
+fi
+
+zip_path_device=$updates_dir/`basename "$zip_path"`
+if adb shell test -f "$zip_path_device"; then
+    echo "$zip_path_device exists already"
+    exit 1
+fi
+
+if [ -n "$2" ]; then
+    status=1
+else
+    status=2
+fi
+
+# Assume lineage-VERSION-DATE-TYPE-*.zip
+zip_name=`basename "$zip_path"`
+id=`echo "$zip_name" | sha1sum | cut -d' ' -f1`
+version=`echo "$zip_name" | cut -d'-' -f2`
+type=`echo "$zip_name" | cut -d'-' -f4`
+build_date=`echo "$zip_name" | cut -d'-' -f3 | cut -d'_' -f1`
+timestamp=`date --date="$build_date 23:59:59" +%s`
+size=`stat -c "%s" "$zip_path"`
+
+adb push "$zip_path" "$zip_path_device"
+adb shell chgrp cache "$zip_path_device"
+adb shell chmod 664 "$zip_path_device"
+
+# Kill the app before updating the database
+adb shell "killall org.lineageos.updater 2>/dev/null"
+adb shell "sqlite3 /data/data/org.lineageos.updater/databases/updates.db" \
+    "\"INSERT INTO updates (status, path, download_id, timestamp, type, version, size)" \
+    "  VALUES ($status, '$zip_path_device', '$id', $timestamp, '$type', '$version', $size)\""