VACMS-14997: module shell for live migration module (#15140)

* VACMS-14997: Module shell for live migration module.

* Refactor to improve reliability and information.

config/sync/core.extension.yml

@@ -254,6 +254,7 @@ module:
   va_gov_graphql: 0
   va_gov_help_center: 0
   va_gov_links: 0
+  va_gov_live_field_migration: 0
   va_gov_login: 0
   va_gov_lovell: 0
   va_gov_magichead: 0

docroot/modules/custom/va_gov_live_field_migration/drush.services.yml

@@ -0,0 +1,6 @@
+services:
+  va_gov_live_field_migration.commands:
+    class: \Drupal\va_gov_live_field_migration\Commands\Commands
+    arguments: []
+    tags:
+      - { name: drush.command }

docroot/modules/custom/va_gov_live_field_migration/src/Commands/Commands.php

@@ -0,0 +1,130 @@
+<?php
+
+namespace Drupal\va_gov_live_field_migration\Commands;
+
+use Drush\Commands\DrushCommands;
+
+/**
+ * Drush commands for live field migrations.
+ */
+class Commands extends DrushCommands {
+
+  /**
+   * Perform an operation, such as migrating, rolling back, or verifying.
+   *
+   * @param callable $operation
+   *   The operation to perform.
+   */
+  public function performOperation(callable $operation) {
+    $startTime = microtime(TRUE);
+    try {
+      $operation();
+    }
+    catch (\Exception $exception) {
+      $this->output()->writeln('Error: ' . $exception->getMessage());
+    }
+    finally {
+      $elapsedTime = microtime(TRUE) - $startTime;
+      $peakMemoryUsage = memory_get_peak_usage();
+      $this->output()->writeln('Elapsed time: ' . number_format($elapsedTime, 2) . ' seconds');
+      $this->output()->writeln('Peak memory usage: ' . number_format($peakMemoryUsage / 1024 / 1024, 2) . ' MB');
+    }
+  }
+
+  /**
+   * Migrate a specific field on a specific content type.
+   *
+   * @param string $entityType
+   *   The entity type.
+   * @param string $bundle
+   *   The entity bundle or content type.
+   * @param string $fieldName
+   *   The field name.
+   *
+   * @command va-gov-live-field-migration:migrate-field
+   * @aliases va-gov-live-field-migration-migrate-field
+   */
+  public function migrateField(
+    string $entityType,
+    string $bundle,
+    string $fieldName
+  ) {
+    $this->performOperation(function () use ($entityType, $bundle, $fieldName) {
+      $this->output()->writeln('Migrating field ' . $fieldName . ' on ' . $entityType . ' ' . $bundle);
+      // Logic for the migration.
+      $this->output()->writeln('Migration successful.');
+    });
+  }
+
+  /**
+   * Rollback a specific field on a specific content type.
+   *
+   * @param string $entityType
+   *   The entity type.
+   * @param string $bundle
+   *   The entity bundle or content type.
+   * @param string $fieldName
+   *   The field name.
+   *
+   * @command va-gov-live-field-migration:rollback-field
+   * @aliases va-gov-live-field-migration-rollback-field
+   */
+  public function rollbackField(
+    string $entityType,
+    string $bundle,
+    string $fieldName
+  ) {
+    $this->performOperation(function () use ($entityType, $bundle, $fieldName) {
+      $this->output()->writeln('Rolling back field ' . $fieldName . ' on ' . $entityType . ' ' . $bundle);
+      // Logic for the rollback.
+      $this->output()->writeln('Rollback successful.');
+    });
+  }
+
+  /**
+   * Verify a migration completed successfully.
+   *
+   * @param string $entityType
+   *   The entity type.
+   * @param string $bundle
+   *   The entity bundle or content type.
+   * @param string $fieldName
+   *   The field name.
+   *
+   * @command va-gov-live-field-migration:verify
+   * @aliases va-gov-live-field-migration-verify
+   */
+  public function verify(
+    string $entityType,
+    string $bundle,
+    string $fieldName
+  ) {
+    $this->performOperation(function () use ($entityType, $bundle, $fieldName) {
+      $this->output()->writeln('Verifying field ' . $fieldName . ' on ' . $entityType . ' ' . $bundle);
+      // Logic for the verification.
+      $this->output()->writeln('Verification successful.');
+    });
+  }
+
+  /**
+   * Find fields that haven't been migrated yet.
+   *
+   * @param string $entityType
+   *   The entity type.
+   * @param string $bundle
+   *   The entity bundle or content type.
+   *
+   * @command va-gov-live-field-migration:find
+   * @aliases va-gov-live-field-migration-find
+   */
+  public function find(
+    string $entityType,
+    string $bundle
+  ) {
+    $this->performOperation(function () use ($entityType, $bundle) {
+      $this->output()->writeln('Finding fields on ' . $entityType . ' ' . $bundle);
+      // Logic for finding fields.
+    });
+  }
+
+}

docroot/modules/custom/va_gov_live_field_migration/va_gov_live_field_migration.info.yml

@@ -0,0 +1,6 @@
+name: 'VA.gov Live Field Migration'
+type: module
+description: 'Helper functionality for live field migrations.'
+core_version_requirement: ^9 || ^10
+package: 'Custom'
+dependencies: []

docroot/modules/custom/va_gov_live_field_migration/va_gov_live_field_migration.module

@@ -0,0 +1,6 @@
+<?php
+
+/**
+ * @file
+ * Contains va_gov_live_field_migration.module.
+ */