add simple switch to l2geth script

Author: jonastheis

sequencer-migration/switch-to-l2geth.sh

@@ -0,0 +1,60 @@
+#!/bin/bash
+
+# Switch Sequencing to L2GETH Script
+# Disables L2RETH sequencing and enables L2GETH sequencing
+# Usage: ./switch-to-l2geth.sh
+
+set -euo pipefail
+
+# Source common functions
+source "$(dirname "$0")/common-functions.sh"
+
+# Global variables to track state
+START_TIME=$(date +%s)
+
+perform_sequencing_switch() {
+    log_info "=== SWITCHING SEQUENCING TO L2GETH ==="
+
+    # Phase 1: Disable L2RETH sequencing
+    log_info "--- Phase 1: Disabling L2RETH sequencing ---"
+    disable_l2reth_sequencing
+
+    # Phase 2: Enable L2GETH sequencing
+    log_info "--- Phase 2: Enabling L2GETH sequencing ---"
+    start_l2geth_mining
+
+    # Phase 3: Verify L2GETH is producing blocks
+    log_info "--- Phase 3: Verifying L2GETH block production ---"
+
+    # Get current block and wait for next block
+    local current_block=$(get_block_number "$L2GETH_RPC_URL")
+    local target_block=$((current_block + 1))
+
+    log_info "Current L2GETH block: #$current_block, waiting for block #$target_block..."
+
+    if wait_for_block "L2GETH" "$L2GETH_RPC_URL" "$target_block" ""; then
+        log_success "L2GETH is successfully producing blocks"
+    else
+        log_error "L2GETH failed to produce new blocks after sequencing was enabled"
+        exit 1
+    fi
+}
+
+main() {
+    log_info "Starting sequencer switch: L2RETH -> L2GETH"
+
+    check_env_vars
+    perform_pre_flight_checks
+
+    # Final confirmation
+    read -p "Proceed with switching sequencing to L2GETH? (y/N): " confirm
+    if [[ "$confirm" != "y" && "$confirm" != "Y" ]]; then
+        log_warning "Sequencing switch cancelled by user"
+        exit 0
+    fi
+
+    perform_sequencing_switch
+}
+
+# Run main function
+main "$@"