wp-cli-import.php

<?php
/**
 * Import Specs CLI
 * 
 * @subcommand specs
 *
 * ## EXAMPLES
 *
 *     wp import file
 *
 * @when after_wp_load
 */
function file( $args, $assoc_args ) {
    list( $filename ) = $args;
    $fields   = $assoc_args['fields'] ?? 'ID';
    $format   = $assoc_args['format'] ?? 'table';
    $test_run = $assoc_args['test-run'] ?? false;
    $dry_run  = $assoc_args['dry-run'] ?? false;

    if ( ! file_exists( $filename ) ) {
        \WP_CLI::error( "Missing file: {$filename}" );
    }

    $rows = new \WP_CLI\Iterators\CSV($filename);

    $items = [];
    foreach ($rows as $index => $row) {

        $items[] = [
            'ID' => $row['ID']
        ];

        if ( $test_run ) break;
    }

    \WP_CLI\Utils\format_items( $format, $items, $fields );
}