x230: add package-upgrade script

x230/NEWS

@@ -1,4 +1,10 @@
 
+skulls-x230 0.0.9 - tbd
+---------------------------------------
+This release includes the following changes:
+* added script to check for new releases
+
+
 skulls-x230 0.0.8 - released 2018-07-06
 ---------------------------------------
 This release includes the following changes:

x230/README.md

@@ -36,6 +36,7 @@ Before starting, run Linux on your X230, install `dmidecode` and run
 `sudo ./x230_before_first_install.sh`. It simply prints system information and helps
 you find out your RAM voltage. Make sure you have RAM that uses
 [1,5V, not 1,35V](https://www.coreboot.org/Intel_Native_Raminit#Sandybridge.2FIvybridge).
+Also make sure you have the latest skulls-x230 package release by running `./upgrade.sh`.
 
 #### original BIOS update / EC firmware (optional)
 Before flashing coreboot, consider doing one original Lenovo upgrade process

x230/release.sh

@@ -116,6 +116,7 @@ tar -cJf skulls-x230-"${version}".tar.xz \
 	x230_heads.sh \
 	external_install_bottom.sh \
 	external_install_top.sh \
+	upgrade.sh \
 	SOURCE.md \
 	"${RELEASE_IMAGE_FILE}" \
 	"${RELEASE_IMAGE_FILE}.sha256"

x230/upgrade.sh

@@ -0,0 +1,83 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-3.0+
+# Copyright (C) 2018, Martin Kepplinger <martink@posteo.de>
+RED='\033[0;31m'
+GREEN='\033[0;32m'
+NC='\033[0m'
+
+set -e
+
+usage()
+{
+	echo "Skulls for the X230"
+	echo ""
+	echo "  This script checks if there's a newer"
+	echo "  release of the X230 Skulls package available."
+	echo ""
+	echo "Usage: $0"
+}
+
+args=$(getopt -o h -- "$@")
+if [ $? -ne 0 ] ; then
+	usage
+	exit 1
+fi
+
+eval set -- "$args"
+while [ $# -gt 0 ]
+do
+	case "$1" in
+	-h)
+		usage
+		exit 1
+		;;
+	--)
+		shift
+		break
+		;;
+	*)
+		echo "Invalid option: $1"
+		exit 1
+		;;
+	esac
+	shift
+done
+
+command -v curl >/dev/null 2>&1 || { echo -e >&2 "${RED}Please install curl.${NC}"; exit 1; }
+
+CURRENT_VERSION=$(head -2 NEWS | egrep -o "([0-9]{1,}\.)+[0-9]{1,}")
+
+UPSTREAM_FILE=$(curl -s https://api.github.com/repos/merge/skulls/releases/latest | grep browser_download_url | cut -d'"' -f4 | cut -d'/' -f9 | head -n 1)
+
+UPSTREAM_VERSION=$(curl -s https://api.github.com/repos/merge/skulls/releases/latest | grep browser_download_url | cut -d'"' -f4 | cut -d'/' -f9 | head -n 1 | egrep -o "([0-9]{1,}\.)+[0-9]{1,}")
+
+UPSTREAM_X230=$(echo ${UPSTREAM_FILE} | grep x230)
+if [[ -z "$UPSTREAM_X230" ]] ; then
+	echo "The latest release didn't include the X230"
+	exit 0
+fi
+
+if [[ "$CURRENT_VERSION" = "$UPSTREAM_VERSION" ]] ; then
+	echo -e "${GREEN}You are using the latest version of Skulls for the X230${NC}"
+	exit 0
+else
+	echo -e "${RED}You have ${CURRENT_VERSION} but there is version ${UPSTREAM_VERSIONJ} available for the X230. Please update.${NC}"
+	read -r -p "Download it to the parent directory now? [y/N] " response
+	case "$response" in
+		[yY][eE][sS]|[yY])
+			UPSTREAM_URL=$(curl -s https://api.github.com/repos/merge/skulls/releases/latest | grep browser_download_url | cut -d'"' -f4 | head -n 1)
+			UPSTREAM_URL_SHA256=$(curl -s https://api.github.com/repos/merge/skulls/releases/latest | grep browser_download_url | cut -d'"' -f4 | head -n 3 | tail -n 1)
+			cd ..
+			curl -LO ${UPSTREAM_URL}
+			curl -LO ${UPSTREAM_URL_SHA256}
+			sha256sum -c ${UPSTREAM_FILE}.sha256
+			mkdir skulls-x230-${UPSTREAM_VERSION}
+			cd skulls-x230-${UPSTREAM_VERSION}
+			tar -xf ${UPSTREAM_FILE} -C skulls-x230-${UPSTREAM_VERSION}/
+			echo "Version ${UPSTREAM_VERSION} extracted to ../skulls-x230-${UPSTREAM_VERSION}/"
+			;;
+		*)
+			exit 0
+		;;
+	esac
+fi