add script to migrate schemas between registries

scripts/migrate-schemas.sh

@@ -0,0 +1,102 @@
+#!/bin/bash
+
+API_TOKEN="YOUR_API_TOKEN"
+
+SOURCE_REGISTRY="https://schemas.holaplex.tools"
+DEST_REGISTRY="https://schemas.holaplex.com"
+
+
+# Define the list of schemas to be migrated
+SCHEMAS=("google%2Fprotobuf%2Ftimestamp.proto" "credential" "credits" "credits_mpsc" "customer" "nfts" "organization" "solana_nfts" "timestamp" "treasury" "webhook" "analytics" "polygon_nfts")
+
+fetch_schema() {
+    local schema=$1
+    local version=$2
+
+    echo "Fetching version $version of schema $schema from source registry" >&2
+
+    local schema_data
+    schema_data=$(curl -s "$SOURCE_REGISTRY/subjects/$schema/versions/$version")
+
+    if ! echo "$schema_data" | jq -e . > /dev/null 2>&1; then
+        echo "Error: Fetched data is not valid JSON." >&2
+        echo "Fetched Data: $schema_data" >&2
+        exit 1
+    fi
+
+    echo "$schema_data"
+}
+
+schema_version_exists() {
+    local schema=$1
+    local version=$2
+
+    # Try to fetch the schema version from the given registry
+    response=$(curl -s "$DEST_REGISTRY/subjects/$schema/versions/$version")
+
+    # If the schema version exists, we'd get a JSON response with a non-null "id" field
+    if echo "$response" | jq -e '.id' > /dev/null 2>&1; then
+        return 0
+    else
+        return 1  # doesn't exist
+    fi
+}
+
+publish_schema() {
+    local schema=$1
+    local version=$2
+    local data=$3
+
+    local schemaType
+    local schemaContent
+    local references
+
+    schemaType=$(echo "$data" | jq -r '.schemaType')
+    schemaContent=$(echo "$data" | jq '.schema')
+    references=$(echo "$data" | jq '.references')
+
+    # Construct the payload based on the presence of references
+    if [[ "$references" != "null" ]]; then
+        schema_payload="{\"schemaType\": \"$schemaType\", \"schema\": $schemaContent, \"references\": $references}"
+    else
+        schema_payload="{\"schemaType\": \"$schemaType\", \"schema\": $schemaContent}"
+    fi
+
+    if [[ -z "$schema_payload" ]]; then
+        echo "Error reconstructing the payload."
+        exit 1
+    fi
+
+    echo "Payload: $schema_payload"
+
+    response=$(curl -s -X POST "$DEST_REGISTRY/subjects/$schema/versions" \
+                     -H "Authorization: $API_TOKEN" \
+                     -H "Content-Type: application/vnd.schemaregistry.v1+json" \
+                     -d "$schema_payload")
+
+    # Check if the POST request was successful
+    if [[ $(echo "$response" | jq -r '.id') == "null" ]]; then
+        echo "Error publishing version $version of schema $schema to destination."
+        echo "Response: $response"
+        exit 1
+    fi
+
+    echo "Successfully migrated version $version of schema $schema"
+}
+
+for schema in "${SCHEMAS[@]}"; do
+    versions=$(curl -s "$SOURCE_REGISTRY/subjects/$schema/versions" | jq '.[]')
+    for version in $versions; do
+        if schema_version_exists "$schema" "$version"; then
+            echo "Schema $schema version $version already exists in destination registry. Skipping."
+            continue
+        fi
+
+        schema_data=$(fetch_schema "$schema" "$version")
+        echo "Printing schema data"
+        echo "$schema_data" | jq
+        publish_schema "$schema" "$version" "$schema_data"
+    done
+done
+
+echo "Migration completed successfully!"