Improving ghost install

src/freedombone-app-ghost

     install_nodejs ghost
 
     # now install ghost itself
-    npm install -g ghost-cli@1.4.1
+    npm install -g ghost-cli@latest
     if [ ! -f /usr/local/bin/ghost ]; then
         echo $'ghost was not installed'
         exit 738539
 
     GHOST_ONION_HOSTNAME=$(add_onion_service ghost 80 ${GHOST_ONION_PORT})
 
-    rm -rf /var/www/$GHOST_DOMAIN_NAME/htdocs/*
     npm install -g yarn
     yarn install --no-emoji --no-progress
     yarn cache clean
-    printf 'y' | ghost install ${GHOST_VERSION} --user ghost --db=sqlite3 --port ${GHOST_PORT} --verbose
     adduser --system --home=/var/www/${GHOST_DOMAIN_NAME}/htdocs/ --group ghost
+    rm -rf /var/www/$GHOST_DOMAIN_NAME/htdocs/*
+    printf 'y' | ghost install ${GHOST_VERSION} --user ghost --db=sqlite3 --port ${GHOST_PORT} --verbose
+
+    if [ ! -d /var/www/$GHOST_DOMAIN_NAME/htdocs/versions ]; then
+        echo $'versions directory was not found'
+        exit 782523462
+    fi
+    if [ ! -d /var/www/$GHOST_DOMAIN_NAME/htdocs/content ]; then
+        echo $'content directory was not found'
+        exit 68352682
+    fi
 
     npm install -g knex-migrator
+    if [ ! -f /var/www/$GHOST_DOMAIN_NAME/htdocs/versions/${GHOST_VERSION}/MigratorConfig.js ]; then
+        echo $'MigratorConfig.js was not found'
+        exit 62783538
+    fi
+    cp /var/www/$GHOST_DOMAIN_NAME/htdocs/versions/${GHOST_VERSION}/MigratorConfig.js /var/www/$GHOST_DOMAIN_NAME/htdocs
+    chown -R ghost: /var/www/$GHOST_DOMAIN_NAME/htdocs
+    cd /var/www/$GHOST_DOMAIN_NAME/htdocs/current
     knex-migrator init
 
     ghost_bust
 
     chown -R ghost: /var/www/${GHOST_DOMAIN_NAME}/htdocs
 
-    n ${NODEJS_VERSION}
-    npm upgrade -g npm@${NPM_VERSION} --save
-
     systemctl enable ghost
     systemctl daemon-reload
     systemctl start ghost