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Add Ability for Leafo\ScssPhp\Server to display SASS errors via a psuedo-element #247

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khamer wants to merge 1 commit into from
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Add Ability for Leafo\ScssPhp\Server to display SASS errors via a psuedo-element #247

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42 changes: 39 additions & 3 deletions src/Server.php
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Original file line number Diff line number Diff line change
Expand Up @@ -21,6 +21,8 @@
*/
class Server
{
protected $showErrorsAsCSS = false;

/**
* Join path components
*
Expand Down Expand Up @@ -203,6 +205,35 @@ protected function compile($in, $out)
return array($css, $etag);
}

protected function createErrorCSS($error)
{
$message = str_replace(
array("'", "\n"),
array("\\'", "\\A"),
$error->getfile() . ":\n\n" . $error->getMessage()
);

return "body { display: none !important; }
html:after {
background: white;
color: black;
content: '$message';
display: block !important;
font-family: mono;
padding: 1em;
white-space: pre;
}";
}

/**
* Render errors as a psuedo-element within valid CSS, displaying the errors on any
* page that includes this CSS.
*/
public function showErrorsAsCSS()
{
$this->showErrorsAsCSS = true;
}

/**
* Compile requested scss and serve css. Outputs HTTP response.
*
Expand Down Expand Up @@ -231,10 +262,15 @@ public function serve($salt = '')
echo $css;

} catch (\Exception $e) {
header($protocol . ' 500 Internal Server Error');
header('Content-type: text/plain');
if ($this->showErrorsAsCSS) {
header('Content-type: text/css');
echo $this->createErrorCSS($e);
} else {
header($protocol . ' 500 Internal Server Error');
header('Content-type: text/plain');
echo 'Parse error: ' . $e->getMessage() . "\n";
}

echo 'Parse error: ' . $e->getMessage() . "\n";
}

return;
Expand Down