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modified AutoloadBuilder to atomic write operation

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This commit is contained in:
Anton Grebnev
2012-03-06 18:47:40 +04:00
parent 4d4e338611
commit 40b3e76c74
2 changed files with 25 additions and 36 deletions
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46
util/AutoloadBuilder.php
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@ -35,7 +35,7 @@ class AutoloadBuilder
public function build()
{
$this->openAutoload();
$array_string = "<?php\n// This file is autogenerated by \n// " . __FILE__ . " script.\nreturn array(\n";
// for dublicates check
$classes = array();
foreach ($this->dirs as $dir) {
@ -65,14 +65,29 @@ class AutoloadBuilder
if (array_key_exists($match[2], $classes)) {
continue;
}
$string = "'{$match[2]}'=>'" . $relative_path . "',\n";
$this->write($string);
$array_string .= "'{$match[2]}'=>'" . $relative_path . "',\n";
$classes[$match[2]] = $file->getRealPath();
}
}
}
}
$this->closeAutoload();
$array_string .= ');';
$this->writeAutoload($array_string);
$this->isFileConsistent();
}
protected function writeAutoload($string)
{
file_put_contents($this->autoload, $string);
}
protected function isFileConsistent()
{
$autoload_array = include($this->autoload);
if(!is_array($autoload_array)) {
unlink($this->autoload);
trigger_error("Error while generating autoload file.", E_USER_ERROR);
}
}
protected function isExcluded($file)
@ -85,29 +100,6 @@ class AutoloadBuilder
return false;
}
protected function openAutoload()
{
$this->write("<?php\n// This file is autogenerated by \n// " . __FILE__ . " script.\nreturn array(\n");
}
protected function closeAutoload()
{
if ($this->write(');')) {
fclose($this->handler);
}
}
protected function write($string)
{
if (!$this->handler) {
if (!$this->handler = fopen($this->autoload, 'w')) {
trigger_error("{$this->autoload} is not writable", E_USER_ERROR);
}
}
return (bool) fwrite($this->handler, $string);
}
protected function rightSubstr($string, $nchars)
{
$right = substr($string, strlen($string) - $nchars, $nchars);