Post Generate: Add support for post_date_gmt

Set the GMT date of the generated posts. Default: value of post_date (or current date if it's not set)

Author: jblz

src/Post_Command.php

@@ -634,6 +634,9 @@ public function list_( $_, $assoc_args ) {
 	 * [--post_date=<yyyy-mm-dd-hh-ii-ss>]
 	 * : The date of the generated posts. Default: current date
 	 *
+	 * [--post_date_gmt=<yyyy-mm-dd-hh-ii-ss>]
+	 * : The GMT date of the generated posts. Default: value of post_date (or current date if it's not set)
+	 *
 	 * [--post_content]
 	 * : If set, the command reads the post_content from STDIN.
 	 *
@@ -681,11 +684,16 @@ public function generate( $args, $assoc_args ) {
 			'post_status' => 'publish',
 			'post_author' => false,
 			'post_date' => current_time( 'mysql' ),
+			'post_date_gmt' => false,
 			'post_content' => '',
 			'post_title' => '',
 		);
 		extract( array_merge( $defaults, $assoc_args ), EXTR_SKIP );
 
+		if ( $post_date_gmt === false ) {
+			$post_date_gmt = $post_date;
+		}
+
 		// @codingStandardsIgnoreStart
 		if ( !post_type_exists( $post_type ) ) {
 			WP_CLI::error( sprintf( "'%s' is not a registered post type.", $post_type ) );
@@ -745,6 +753,7 @@ public function generate( $args, $assoc_args ) {
 				'post_parent' => $current_parent,
 				'post_name' => ! empty( $post_title  ) ? sanitize_title( $post_title . ( $i === $total ) ? '' : '-$i' ) : "post-$i",
 				'post_date' => $post_date,
+				'post_date_gmt' => $post_date_gmt,
 				'post_content' => $post_content,
 			);