Plugin https://github.com/audrasjb/site-health-audit-enqueued-assets/…

…blob/master/site-health-audit-enqueued-assets.php imported as a module and some little refactoring.
WordPress · felixarntz · Jan 28, 2022 · Dec 8, 2021 · Dec 9, 2021 · Dec 9, 2021
commit a7883dc5e5e4ab82ecbd9f533f7d9ae5dfeeb194
diff --git a/modules/audit-enqueued-assets/load.php b/modules/audit-enqueued-assets/load.php
@@ -0,0 +1,208 @@
+<?php
+/**
+ * Module Name: Audit Enqueued Assets
+ * Description: Adds a CSS and JS resource checker in Site Health checks.
+ * Focus: site-health
+ * Experimental: No
+ *
+ * @package performance-lab
+ * @since 1.0.0
+ */
+
+/**
+ * Audit enqueued scripts in the frontend. Ignore /wp-includes scripts.
+ *
+ * It will save information in a transient for 12 hours.
+ *
+ * @since 1.0.0
+ */
+function aea_audit_enqueued_scripts() {
+	if ( ! is_admin() && ! get_transient( 'aea_enqueued_scripts' ) ) {
+		global $wp_scripts;
+		$enqueued_scripts = array();
+
+		foreach ( $wp_scripts->queue as $handle ) {
+			$src = $wp_scripts->registered[ $handle ]->src;
+			if ( $src && ! strpos( $src, 'wp-includes' ) ) {
+				$enqueued_scripts[] = $src;
+			}
+		}
+		set_transient( 'aea_enqueued_scripts', $enqueued_scripts, 12 * HOUR_IN_SECONDS );
+	}
+}
+add_action( 'wp_print_scripts', 'aea_audit_enqueued_scripts' );
+
+/**
+ * Audit enqueued styles in the frontend. Ignore /wp-includes styles.
+ *
+ * It will save information in a transient for 12 hours.
+ *
+ * @since 1.0.0
+ */
+function aea_audit_enqueued_styles() {
+	if ( ! is_admin() && ! get_transient( 'aea_enqueued_styles' ) ) {
+		global $wp_styles;
+		$enqueued_styles = array();
+		foreach ( $wp_styles->queue as $handle ) {
+			$src = $wp_styles->registered[ $handle ]->src;
+			if ( $src && ! strpos( $src, 'wp-includes' ) ) {
+				$enqueued_styles[] = $src;
+			}
+		}
+		set_transient( 'aea_enqueued_styles', $enqueued_styles, 12 * HOUR_IN_SECONDS );
+	}
+}
+add_action( 'wp_print_styles', 'aea_audit_enqueued_styles' );
+
+/**
+ * Gets total of enqueued scripts.
+ *
+ * @since 1.0.0
+ *
+ * @return int Number of total scripts.
+ */
+function aea_get_total_enqueued_scripts() {
+	$enqueued_scripts = false;
+	if ( get_transient( 'aea_enqueued_scripts' ) ) {
+		$list_enqueued_scripts = get_transient( 'aea_enqueued_scripts' );
+		$enqueued_scripts      = count( $list_enqueued_scripts );
+	}
+	return $enqueued_scripts;
+}
+
+/**
+ * Gets total of enqueued styles.
+ *
+ * @since 1.0.0
+ */
+function aea_get_total_enqueued_styles() {
+	$enqueued_styles = false;
+	if ( get_transient( 'aea_enqueued_styles' ) ) {
+		$list_enqueued_styles = get_transient( 'aea_enqueued_styles' );
+		$enqueued_styles      = count( $list_enqueued_styles );
+	}
+	return $enqueued_styles;
+}
+
+/**
+ * Adds tests to site health.
+ *
+ * @since 1.0.0
+ *
+ * @param array $tests Site Health Tests.
+ * @return array
+ */
+function aea_add_enqueued_assets_test( $tests ) {
+	$tests['direct']['enqueued_js_assets']  = array(
+		'label' => esc_html__( 'JS assets', 'performance-lab' ),
+		'test'  => 'aea_enqueued_js_assets_test',
+	);
+	$tests['direct']['enqueued_css_assets'] = array(
+		'label' => esc_html__( 'CSS assets', 'performance-lab' ),
+		'test'  => 'aea_enqueued_css_assets_test',
+	);
+
+	return $tests;
+}
+add_filter( 'site_status_tests', 'aea_add_enqueued_assets_test' );
+
+/**
+ * Callback for enqueued_js_assets test.
+ *
+ * @since 1.0.0
+ *
+ * @return array
+ */
+function aea_enqueued_js_assets_test() {
+	/**
+	 * If the test didn't run yet, deactivate.
+	 */
+	$enqueued_scripts = aea_get_total_enqueued_scripts();
+	if ( false === $enqueued_scripts ) {
+		return array();
+	}
+
+	$result = array(
+		'label'       => esc_html__( 'Enqueued JS assets', 'performance-lab' ),
+		'status'      => 'good',
+		'badge'       => array(
+			'label' => esc_html__( 'Performance', 'performance-lab' ),
+			'color' => 'blue',
+		),
+		'description' => sprintf(
+			'<p>%s</p>',
+			esc_html__( 'The amount of enqueued JS assets is acceptable.', 'performance-lab' )
+		),
+		'actions'     => '',
+		'test'        => 'enqueued_js_assets',
+	);
+
+	if ( $enqueued_scripts > 10 ) {
+		$result['status']         = 'recommended';
+		$result['badge']['color'] = 'orange';
+		$result['description']    = sprintf(
+			/* translators: %s: Number of enqueued scripts */
+			esc_html__( 'Your website enqueues %s scripts. Try to reduce the number of JS assets, or to concatenate them.', 'performance-lab' ),
+			$enqueued_scripts
+		);
+		$result['actions'] .= sprintf(
+			/* translators: 1: HelpHub URL. 2: Link description. */
+			'<p><a target="_blank" href="%1$s">%2$s</a></p>',
+			esc_url( __( 'https://wordpress.org/support/article/optimization/', 'performance-lab' ) ),
+			esc_html__( 'More info about performance optimization', 'performance-lab' )
+		);
+	}
+
+	return $result;
+}
+
+/**
+ * Callback for enqueued_css_assets test.
+ *
+ * @since 1.0.0
+ *
+ * @return array
+ */
+function aea_enqueued_css_assets_test() {
+	/**
+	 * If the test didn't run yet, deactivate.
+	 */
+	$enqueued_styles = aea_get_total_enqueued_styles();
+	if ( false === $enqueued_styles ) {
+		return array();
+	}
+
+	$result = array(
+		'label'       => esc_html__( 'Enqueued CSS assets', 'performance-lab' ),
+		'status'      => 'good',
+		'badge'       => array(
+			'label' => esc_html__( 'Performance', 'performance-lab' ),
+			'color' => 'blue',
+		),
+		'description' => sprintf(
+			'<p>%s</p>',
+			esc_html__( 'The amount of enqueued CSS assets is acceptable.', 'performance-lab' )
+		),
+		'actions'     => '',
+		'test'        => 'enqueued_css_assets',
+	);
+
+	if ( $enqueued_styles > 10 ) {
+		$result['status']         = 'recommended';
+		$result['badge']['color'] = 'orange';
+		$result['description']    = sprintf(
+			/* translators: %s: Number of enqueued styles */
+			esc_html__( 'Your website enqueues %s styles. Try to reduce the number of CSS assets, or to concatenate them.', 'performance-lab' ),
+			$enqueued_styles
+		);
+		$result['actions'] .= sprintf(
+			/* translators: 1: HelpHub URL. 2: Link description. */
+			'<p><a target="_blank" href="%1$s">%2$s</a></p>',
+			esc_url( __( 'https://wordpress.org/support/article/optimization/', 'performance-lab' ) ),
+			esc_html__( 'More info about performance optimization', 'performance-lab' )
+		);
+	}
+
+	return $result;
+}
+