Replace asset-tag in the composer archive step (fixes: #1869)

Author: baszoetekouw

composer.json

@@ -74,6 +74,9 @@
         ],
         "post-update-cmd": [
             "Incenteev\\ParameterHandler\\ScriptHandler::buildParameters"
+        ],
+        "pre-archive-cmd": [
+            "bash -c 'if [ -z \"${ASSET_TAG}\" ]; then export ASSET_TAG=$(tr -dc A-Za-z0-9 < /dev/urandom | head -c 16); echo \"ASSET_TAG not set, using random value: ${ASSET_TAG}\"; fi; sed -i -e s,#ASSET_VERSION#,${ASSET_TAG},g ./app/config/config.yml'"
         ]
     },
     "autoload": {