add prechecks

update_misskey_git.sh

@@ -16,7 +16,8 @@ COMPOSE=docker-compose.yml
 # Backup destination directory
 DST=/usr/local/backup
 # Automatically stop, update and start the running instance
-AUTOUPDATE=0
+AUTOUPDATE=1
+TMP=/tmp/.update_misskey.$$
 ###
 
 if [ ! -d $CODE ] || [ ! -d $DATA ]; then
@@ -24,8 +25,9 @@ if [ ! -d $CODE ] || [ ! -d $DATA ]; then
   exit 1
 fi
 
-# Take some care
+# Take some care before upgrading
 echo "Backing up current code... (you really should have done yourself a data backup before upgrading, something like backup_postgres.sh)"
+echo "$CODE will be archived in $DST/backup-code.tgz"
 tar -czf $DST/backup-code.tgz $CODE
 if [ $? -ne 0 ]; then
   echo "ERROR: something went wrong during backup..."
@@ -33,11 +35,52 @@ if [ $? -ne 0 ]; then
 fi
 
 echo "Updating codebase with git..."
-#git stash
-#git checkout master
-#git pull
-#git submodule update --init
-#git stash pop
+cd $CODE
+
+git stash
+if [ $? -ne 0 ]; then
+  echo "Error, bailing out"
+  exit 1
+fi
+
+git checkout master
+if [ $? -ne 0 ]; then
+  echo "Error, bailing out"
+  exit 1
+fi
+
+# Compare version before/after pulling files
+currentVersion=`grep version package.json | awk '{ print $2 }' | sed 's/\"//g' | sed 's/,//'`
+
+git pull | tee -a $TMP
+if [ $? -ne 0 ]; then
+  echo "Error, bailing out"
+  exit 1
+fi
+
+grep -q "Already up to date." $TMP
+if [ $? -eq 0 ]; then
+  echo "Your Misskey code is already up to date, version:$currentVersion."
+  rm -f $TMP
+  exit 0
+fi
+rm -f $TMP
+
+latestVersion=`grep version package.json | awk '{ print $2 }' | sed 's/\"//g' | sed 's/,//'`
+echo "Upgrade needed, current:$currentVersion latest:$latestVersion."
+
+git submodule update --init
+if [ $? -ne 0 ]; then
+  echo "Error, bailing out"
+  exit 1
+fi
+
+git stash pop
+if [ $? -ne 0 ]; then
+  echo "Error, bailing out"
+  exit 1
+fi
+
 echo "Building new images... (it will take some time)"
 docker-compose --project-directory=$DATA --file $DATA/$COMPOSE build
 
@@ -48,16 +91,20 @@ if [ $AUTOUPDATE -eq 0 ]; then
   echo "start_misskey.sh"
 else
   echo "Automatically updating the instance, fingers crossed"
+  echo -n "Stopping..."
   stop_misskey.sh
   if [ $? -ne 0 ]; then
     echo "ERROR: something went wrong when stopping the instance"
     exit 1
   fi
+  echo "done."
+  echo -n "Starting..."
   start_misskey.sh
   if [ $? -ne 0 ]; then
     echo "ERROR: something went wrong when starting the instance"
     exit 1
   fi
+  echo "done."
 fi
 
 exit 0