Merge pull request #127 from linuxserver/focal-migrations

Fix migrations

root/etc/cont-init.d/01-migrations

@@ -1,4 +1,5 @@
-#!/bin/bash
+#!/usr/bin/with-contenv bash
+# shellcheck shell=bash
 
 MIGRATIONS_DIR="/migrations"
 MIGRATIONS_HISTORY="/config/.migrations"
@@ -18,12 +19,14 @@ for MIGRATION in $(find ${MIGRATIONS_DIR}/* | sort -n); do
     fi
     echo "[migrations] ${NAME}: executing..."
     chmod +x "${MIGRATION}"
-  EXIT_CODE=$(/bin/bash "${MIGRATION}"; echo $?)
+    # Execute migration script in a subshell to prevent it from modifying the current environment
+    ("${MIGRATION}")
+    EXIT_CODE=$?
     if [[ ${EXIT_CODE} -ne 0 ]]; then
         echo "[migrations] ${NAME}: failed with exit code ${EXIT_CODE}, contact support"
         exit "${EXIT_CODE}"
     fi
-  echo "${NAME}" >> ${MIGRATIONS_HISTORY}
+    echo "${NAME}" >>${MIGRATIONS_HISTORY}
     echo "[migrations] ${NAME}: succeeded"
 done