From e54b597f66c358eaaa1fbfb585db901bc741789b Mon Sep 17 00:00:00 2001
From: Miguel Fonseca <miguelcsf@gmail.com>
Date: Mon, 14 Sep 2020 19:48:35 +0100
Subject: [PATCH] try a rendering script

---
 lib/edit-site-export.php                      |  4 ++--
 lib/full-site-editing.php                     |  2 +-
 lib/render-script.php                         | 10 ++++++++
 lib/templates-sync.php                        | 23 ++++++++++++++-----
 lib/templates.php                             | 19 ---------------
 .../block-library/src/template-part/index.php |  4 ++--
 6 files changed, 32 insertions(+), 30 deletions(-)
 create mode 100644 lib/render-script.php

diff --git a/lib/edit-site-export.php b/lib/edit-site-export.php
index 14c0a756c57b3a..6fffe2e048bbc8 100644
--- a/lib/edit-site-export.php
+++ b/lib/edit-site-export.php
@@ -44,7 +44,7 @@ function gutenberg_edit_site_export() {
 	while ( $template_query->have_posts() ) {
 		$template = $template_query->next_post();
 		$zip->addFromString(
-			'theme/block-templates/' . $template->post_name . '.html',
+			'theme/block-templates/' . $template->post_name . '.php',
 			gutenberg_strip_post_ids_from_template_part_blocks( $template->post_content )
 		);
 	}
@@ -68,7 +68,7 @@ function gutenberg_edit_site_export() {
 	while ( $template_part_query->have_posts() ) {
 		$template_part = $template_part_query->next_post();
 		$zip->addFromString(
-			'theme/block-template-parts/' . $template_part->post_name . '.html',
+			'theme/block-template-parts/' . $template_part->post_name . '.php',
 			gutenberg_strip_post_ids_from_template_part_blocks( $template_part->post_content )
 		);
 	}
diff --git a/lib/full-site-editing.php b/lib/full-site-editing.php
index 059b39ccb971f0..8de9869dca73a7 100644
--- a/lib/full-site-editing.php
+++ b/lib/full-site-editing.php
@@ -11,7 +11,7 @@
  * @return boolean Whether the current theme is an FSE theme or not.
  */
 function gutenberg_is_fse_theme() {
-	return is_readable( get_stylesheet_directory() . '/block-templates/index.html' );
+	return is_readable( get_stylesheet_directory() . '/block-templates/index.php' );
 }
 
 /**
diff --git a/lib/render-script.php b/lib/render-script.php
new file mode 100644
index 00000000000000..752bc633fe9275
--- /dev/null
+++ b/lib/render-script.php
@@ -0,0 +1,10 @@
+<?php
+/**
+ * Script used to render a block based template passed as argument.
+ *
+ * @package gutenberg
+ */
+
+// Load the L10n library here.
+
+require $argv[1];
diff --git a/lib/templates-sync.php b/lib/templates-sync.php
index b5c1076f49ce8c..3a976c79b39aea 100644
--- a/lib/templates-sync.php
+++ b/lib/templates-sync.php
@@ -5,6 +5,18 @@
  * @package gutenberg
  */
 
+/**
+ * Render a Block Based template and returns its output.
+ *
+ * @access private
+ * @internal
+ *
+ * @param string $template_path Template file path.
+ */
+function _gutenberg_read_template( $template_path ) {
+	return shell_exec( 'php ' . __DIR__ . '/render-script.php ' . $template_path );
+}
+
 /**
  * Creates a template (or template part depending on the post type)
  * auto-draft if it doesn't exist yet.
@@ -78,7 +90,7 @@ function _gutenberg_get_template_paths( $base_directory ) {
 	$path_list = array();
 	if ( file_exists( $base_directory ) ) {
 		$nested_files      = new RecursiveIteratorIterator( new RecursiveDirectoryIterator( $base_directory ) );
-		$nested_html_files = new RegexIterator( $nested_files, '/^.+\.html$/i', RecursiveRegexIterator::GET_MATCH );
+		$nested_html_files = new RegexIterator( $nested_files, '/^.+\.php$/i', RecursiveRegexIterator::GET_MATCH );
 		foreach ( $nested_html_files as $path => $file ) {
 			$path_list[] = $path;
 		}
@@ -134,14 +146,13 @@ function _gutenberg_synchronize_theme_templates( $template_type ) {
 		$path               = $template_file['path'];
 		$theme              = $template_file['theme'];
 		$template_base_path = $template_base_paths[ $template_type ];
-
-		$content = file_get_contents( $path );
-		$slug    = substr(
+		$content            = _gutenberg_read_template( $path );
+		$slug               = substr(
 			$path,
 			// Starting position of slug.
 			strpos( $path, $template_base_path . DIRECTORY_SEPARATOR ) + 1 + strlen( $template_base_path ),
-			// Subtract ending '.html'.
-			-5
+			// Subtract ending '.php'.
+			-4
 		);
 		_gutenberg_create_auto_draft_for_template( $template_post_types[ $template_type ], $slug, $theme, $content );
 	}
diff --git a/lib/templates.php b/lib/templates.php
index aa085c0d54d125..9f0be1c3317121 100644
--- a/lib/templates.php
+++ b/lib/templates.php
@@ -5,25 +5,6 @@
  * @package gutenberg
  */
 
-/**
- * Returns all block template file path of the current theme and its parent theme.
- * Includes demo block template files if demo experiment is enabled.
- *
- * @return array $block_template_files A list of paths to all template files.
- */
-function gutenberg_get_template_paths() {
-	$block_template_files = glob( get_stylesheet_directory() . '/block-templates/*.html' );
-	$block_template_files = is_array( $block_template_files ) ? $block_template_files : array();
-
-	if ( is_child_theme() ) {
-		$child_block_template_files = glob( get_template_directory() . '/block-templates/*.html' );
-		$child_block_template_files = is_array( $child_block_template_files ) ? $child_block_template_files : array();
-		$block_template_files       = array_merge( $block_template_files, $child_block_template_files );
-	}
-
-	return $block_template_files;
-}
-
 /**
  * Registers block editor 'wp_template' post type.
  */
diff --git a/packages/block-library/src/template-part/index.php b/packages/block-library/src/template-part/index.php
index c19f23c7bd546b..c1c8fb8fe0afff 100644
--- a/packages/block-library/src/template-part/index.php
+++ b/packages/block-library/src/template-part/index.php
@@ -44,9 +44,9 @@ function render_block_core_template_part( $attributes ) {
 		} else {
 			// Else, if the template part was provided by the active theme,
 			// render the corresponding file content.
-			$template_part_file_path = get_stylesheet_directory() . '/block-template-parts/' . $attributes['slug'] . '.html';
+			$template_part_file_path = get_stylesheet_directory() . '/block-template-parts/' . $attributes['slug'] . '.php';
 			if ( 0 === validate_file( $template_part_file_path ) && file_exists( $template_part_file_path ) ) {
-				$content = file_get_contents( $template_part_file_path );
+				$content = _gutenberg_read_template( $template_part_file_path );
 			}
 		}
 	}