From 4685ff4145539ab4b3e67289668d1e8238dd9cb5 Mon Sep 17 00:00:00 2001
From: Bernd Bestel <bernd@berrnd.de>
Date: Wed, 25 Jul 2018 08:22:27 +0200
Subject: [PATCH] Add an update script for Linux

---
 README.md |  4 +++-
 update.sh | 34 ++++++++++++++++++++++++++++++++++
 2 files changed, 37 insertions(+), 1 deletion(-)
 create mode 100644 update.sh

diff --git a/README.md b/README.md
index b02b0ac7..f2246d3c 100644
--- a/README.md
+++ b/README.md
@@ -23,7 +23,9 @@ If you use nginx as your webserver, please include `try_files $uri /index.php;`
 If, however, your webserver does not support URL rewriting, set `DISABLE_URL_REWRITING` in `data/config.php` (`Setting('DISABLE_URL_REWRITING', true);`).
 
 ## How to update
-Just overwrite everything with the latest release while keeping the `/data` directory, check `config-dist.php` for new configuration options and add them to your `data/config.php` (the default from values `config-dist.php` will be used for not in `data/config.php` defined settings).
+Just overwrite everything with the latest release while keeping the `/data` directory, check `config-dist.php` for new configuration options and add them to your `data/config.php` (the default from values `config-dist.php` will be used for not in `data/config.php` defined settings). Just to be sure, please empty `/data/viewcache`.
+
+If you run grocy on Linux, there is also `/update.sh` (beside the basic tools `unzip` is needed) which does exact this and additionally creates a backup (`.tgz` archive) of the current installation in `/data/backups` (backups older than 60 days will be deleted during the update).
 
 ## Localization
 grocy is fully localizable - the default language is English (integrated into code), a German localization is always maintained by me. There is one file per language in the `localization` directory, if you want to create a translation, it's best to copy `localization/de.php` to a new one (e. g. `localization/it.php`) and translating all strings there. (Language can be changed in `data/config.php`, e. g. `Setting('CULTURE', 'it');`)
diff --git a/update.sh b/update.sh
new file mode 100644
index 00000000..a9602ace
--- /dev/null
+++ b/update.sh
@@ -0,0 +1,34 @@
+#!/bin/bash
+
+GROCY_RELEASE_URL=https://releases.grocy.info/latest
+
+
+echo Start updating grocy
+
+set -e
+shopt -s extglob
+pushd `dirname $0` > /dev/null
+
+backupBundleFileName="backup-`date +%d-%m-%Y-%H-%M-%S`.tgz"
+echo Making a backup of the current installation in /data/backups/$backupBundleFileName
+mkdir -p ./data/backups > /dev/null
+tar -zcvf ./data/backups/$backupBundleFileName --exclude ./data/backups . > /dev/null
+find ./data/backups/*.tgz -mtime +60 -type f -delete
+
+echo Deleting everything except /data and this script
+rm -rf !(data|update.sh) > /dev/null
+
+echo Emptying /data/viewcache
+rm -rf ./data/viewcache/* > /dev/null
+
+echo Downloading latest release
+rm -f ./grocy-latest.zip > /dev/null
+wget $GROCY_RELEASE_URL -q -O ./grocy-latest.zip > /dev/null
+
+echo Unzipping latest release
+unzip -o ./grocy-latest.zip > /dev/null
+rm -f ./grocy-latest.zip > /dev/null
+
+popd > /dev/null
+
+echo Finished updating grocy