Load files from markdown

Author: aarondfrancis

CHANGELOG.md

@@ -1,5 +1,10 @@
 # Changelog
 
+## Unreleased
+
+### Added
+- You can now load files from markdown by using the `<<< file.php` convention.
+
 ## 0.4.1 - 2021-08-02
 
 ### Changed

composer.json

@@ -20,7 +20,7 @@
     "require": {
         "php": "^7.2|^8.0",
         "league/commonmark": "^1.5",
-        "torchlight/torchlight-laravel": "^0.5.0"
+        "torchlight/torchlight-laravel": "^0.5.5"
     },
     "require-dev": {
         "orchestra/testbench": "^5.0|^6.0",

src/TorchlightExtension.php

@@ -93,14 +93,32 @@ protected function makeTorchlightBlock($node)
         return Block::make()
             ->language($this->getLanguage($node))
             ->theme($this->getTheme($node))
-            ->code($node->getStringContent());
+            ->code($this->getContent($node));
     }
 
     protected function isCodeNode($node)
     {
         return $node instanceof FencedCode || $node instanceof IndentedCode;
     }
 
+    protected function getContent($node)
+    {
+        $content = $node->getStringContent();
+
+        if (!Str::startsWith($content, '<<<')) {
+            return $content;
+        }
+
+        $file = trim(Str::after($content, '<<<'));
+
+        // It must be only one line, because otherwise it might be a heredoc.
+        if (count(explode("\n", $file)) > 1) {
+            return $content;
+        }
+
+        return Torchlight::processFileContents($file) ?: $content;
+    }
+
     protected function getInfo($node)
     {
         if (!$this->isCodeNode($node) || $node instanceof IndentedCode) {

tests/CodeRendererTest.php

@@ -166,6 +166,68 @@ public function can_set_theme()
         });
     }
 
+    /** @test */
+    public function can_load_file()
+    {
+        config()->set('torchlight.snippet_directories', [
+            __DIR__
+        ]);
+
+        $markdown = <<<'EOT'
+``` 
+<<< Support/file1.php
+```
+EOT;
+
+        Http::fake();
+
+        $this->render($markdown);
+
+        Http::assertSent(function ($request) {
+            return $request['blocks'][0]['code'] === '// this is file 1';
+        });
+    }
+
+    /** @test */
+    public function non_existent_file_just_stays()
+    {
+        $markdown = <<<'EOT'
+``` 
+<<< Support/nonexistent.php
+```
+EOT;
+
+        Http::fake();
+
+        $this->render($markdown);
+
+        Http::assertSent(function ($request) {
+            return $request['blocks'][0]['code'] === '<<< Support/nonexistent.php';
+        });
+    }
+
+
+    /** @test */
+    public function doesnt_load_heredoc()
+    {
+        $markdown = <<<'EOT'
+``` 
+<<<SQL
+select 1;
+SQL;
+```
+EOT;
+
+        Http::fake();
+
+        $this->render($markdown);
+
+        Http::assertSent(function ($request) {
+            return $request['blocks'][0]['code'] === "<<<SQL\nselect 1;\nSQL;";
+        });
+    }
+
+
     /** @test */
     public function it_sends_one_request_only_and_matches_by_id()
     {

tests/Support/file1.php

@@ -0,0 +1 @@
+// this is file 1