Sony 10 III - Dual SIM (arm64) | Sailfish OS 5.0.0.73 | Android 13 | MindTheGapps installation script

installgapps.sh

#!/bin/bash
set -e

WORKDIR=/home/.appsupport_systemimg_patch
TMPWORKDIR="$WORKDIR/tmp"
SQUASHFS_ROOT="$TMPWORKDIR/squashfs-root"
MOUNT_ROOT="$TMPWORKDIR/systemimg_mount"
SYSTEM_IMG=/opt/appsupport/system.img
ORIG_IMG_FILE=orig_img_path.txt

MINDTHEGAPPS_PATTERN='MindTheGapps-13.0.0-arm64-*.zip'

log() {
	printf '%s\n' "$1" > /dev/stderr
}

install_deps() {
	if ! rpm -q squashfs-tools > /dev/null; then
		log "squashfs-tools package not found. Installing..."
		pkcon -y install squashfs-tools
	fi

	if ! rpm -q rsync > /dev/null; then
		log "rsync package not found. Installing..."
		pkcon -y install rsync
	fi
}

extract_image() {
	mkdir "$MOUNT_ROOT"
	mount -o loop,ro "$SYSTEM_IMG" "$MOUNT_ROOT"

	if [ -f "$MOUNT_ROOT/$ORIG_IMG_FILE" ]; then
		orig_image="$(cat "$MOUNT_ROOT/$ORIG_IMG_FILE")"
		log "$SYSTEM_IMG already patched, using original from $orig_image"
	else
		img_md5="$(md5sum "$SYSTEM_IMG" | cut -d ' ' -f1)"
		orig_image="$WORKDIR/system.img.$img_md5"
		if [ -f "$orig_image" ]; then
			log "Backup already exists at $orig_image, skipping copy"
		else
			cp "$SYSTEM_IMG" "$orig_image"
			log "Copying original image $SYSTEM_IMG to $orig_image"
		fi
	fi
	umount "$MOUNT_ROOT"

	if [ ! -f "$orig_image" ]; then
		log "$orig_image not found"
		return 1
	fi

	mount -o loop,ro "$orig_image" "$MOUNT_ROOT"

	if [ -f "$MOUNT_ROOT/$ORIG_IMG_FILE" ]; then
		umount "$MOUNT_ROOT"
		rmdir "$MOUNT_ROOT"
		log "$orig_image already patched, please restore original image to $SYSTEM_IMG"
		return 1
	fi
	mkdir "$SQUASHFS_ROOT"
	rsync -aSHAX "$MOUNT_ROOT/" "$SQUASHFS_ROOT/"
	umount "$MOUNT_ROOT"
	rmdir "$MOUNT_ROOT"

	printf '%s' "$orig_image" > "$SQUASHFS_ROOT/$ORIG_IMG_FILE"
}

build_image() {
	cp "$SYSTEM_IMG" "$TMPWORKDIR/system.img.backup"
	mksquashfs "$SQUASHFS_ROOT" "$SYSTEM_IMG" -noappend -no-exports -no-duplicates -no-fragments
	rm "$TMPWORKDIR/system.img.backup"
	rm -r "$SQUASHFS_ROOT"
}

_find_mindthegapps() {
	downloads=/home/defaultuser/Downloads/
	log "Searching for MindTheGapps zip at $downloads/$MINDTHEGAPPS_PATTERN"
	find "$downloads" -maxdepth 1 -name "$MINDTHEGAPPS_PATTERN" | sort | tail -n 1
}

get_mindthegapps_zip() {
	mindthegapps_zip="$(_find_mindthegapps)"
	if [ -z "$mindthegapps_zip" ]; then
		log "MindTheGapps zip not found at /home/defaultuser/Downloads/"
		log "Please download a MindTheGapps zip from https://wiki.lineageos.org/gapps"
		return 1
	else
		log "Found MindTheGapps zip $mindthegapps_zip"
	fi
	printf '%s' "$mindthegapps_zip"
}

install_mindthegapps() {
	log "Unzip MindTheGapps archive"
	unzip -o "$mindthegapps_zip" 'system/*' -d "$TMPWORKDIR/mindthegapps/"

	# Remove VelvetTitan (tangorpro-specific Google app)
	rm -rf "$TMPWORKDIR/mindthegapps/system/product/priv-app/VelvetTitan"
	# Remove addon.d scripts (not needed outside Android recovery)
	rm -rf "$TMPWORKDIR/mindthegapps/system/addon.d"

	# In the SFOS image /system/product is a symlink to /product (an absolute
	# path). rsync would follow/replace that symlink, placing files where
	# Android never scans. Install product files directly to /product/.
	rsync -a "$TMPWORKDIR"/mindthegapps/system/product/ "$SQUASHFS_ROOT/product/"
	rm -rf "$TMPWORKDIR/mindthegapps/system/product"

	rsync -a "$TMPWORKDIR"/mindthegapps/system/ "$SQUASHFS_ROOT/system/"
	rm -r "$TMPWORKDIR/mindthegapps/"
}

set_traps() {
	# shellcheck disable=SC2064
	trap "$*" EXIT HUP INT QUIT PIPE TERM
}

# shellcheck disable=SC2329
cleanup() {
	if [ ! -f "$SYSTEM_IMG" ] && [ -f "$TMPWORKDIR/system.img.backup" ]; then
		mv "$TMPWORKDIR/system.img.backup" "$SYSTEM_IMG" || :
	fi
	umount "$MOUNT_ROOT" || :
	rm -r "$TMPWORKDIR" || :
	set_traps -
	exit 1
}

REQUIRED_VERSION_ID=5.0.0.73

# shellcheck source=/dev/null
. /etc/os-release
if [ "$VERSION_ID" != "$REQUIRED_VERSION_ID" ]; then
	log "Expected Sailfish OS VERSION_ID=$REQUIRED_VERSION_ID but found $VERSION_ID"
	exit 1
fi

mindthegapps_zip="$(get_mindthegapps_zip)"

set_traps cleanup
systemctl stop appsupport@defaultuser

mkdir -p "$WORKDIR"
mkdir -p "$TMPWORKDIR"

install_deps
log "extract image"
extract_image
log "image was extracted"
log "install MindTheGapps"
install_mindthegapps
log "MindTheGapps were installed"
log "build image"
build_image
log "image was built"

rmdir "$TMPWORKDIR"

set_traps -
exit 0

Ok, it`s work well :)

This is probably the last version, since I've converted to LXC mount-based strategy https://gist.github.com/lkraav/cde72215adfe0898f12798989f9606d8