我有一个看起来很简单的任务,
我希望最终得到的是这个数组(请注意,我在此处截断了路径,只是为了更容易阅读)
现在我有以下代码,但我认为这并不是很优化,例如,我知道有
- 给定一个路径,搜索所有子目录(仅一层)中的
less
目录。 - 如果找到该目录,则将其完整路径添加为数组的键。
- 将该键的值设置为相同的路径,但将
less
替换为css
- 在 less 目录内递归遍历所有子目录。
- 像处理原始目录一样添加子目录。
因此,给定以下结构:
注意:下面的所有项(除了 randomfile)都是目录
matthew@vaio:/var/www/constructor/public/bundles$ tree
.
├── first
│ └── less
│ ├── secondtester
│ └── tester
│ ├── anothersubtester
│ ├── randomfile
│ └── subtester
├── second
│ └── less
│ ├── secondtester
│ └── tester
│ ├── anothersubtester
│ ├── randomfile
│ └── subtester
└── third
└── noless
├── secondtester
└── tester
├── anothersubtester
├── randomfile
└── subtester
18 directories, 3 files
我希望最终得到的是这个数组(请注意,我在此处截断了路径,只是为了更容易阅读)
Array
(
[/b/second/less] => /b/second/css
[/b/second/less/secondtester] => /b/second/css/secondtester
[/b/second/less/tester] => /b/second/css/tester
[/b/second/less/tester/subtester] => /b/second/css/tester/subtester
[/b/second/less/tester/anothersubtester] => /b/second/css/tester/anothersubtester
[/b/first/less] => /b/first/css
[/b/first/less/secondtester] => /b/first/css/secondtester
[/b/first/less/tester] => /b/first/css/tester
[/b/first/less/tester/subtester] => /b/first/css/tester/subtester
[/b/first/less/tester/anothersubtester] => /b/first/css/tester/anothersubtester
)
现在我有以下代码,但我认为这并不是很优化,例如,我知道有
RecursiveIteratorIterators
等东西,但我无法想出如何将它们用于此任务,因此不得不使用递归函数来完成。基本上,我想知道如何更好地编写此代码以获得更好的性能:$directories = array();
$bundlePath = realpath('/public/bundles');
function lessSearcher($lessPath, $cssPath){
$directories = array($lessPath => $cssPath);
$lessDirs = new DirectoryIterator($lessPath);
foreach ($lessDirs as $lessDir) {
//we only want the directories and not the .'s
if ($lessDir->isDot() || !$lessDir->isDir()) continue;
$lessCurrent = $lessPath . '/' . $lessDir->getFileName();
$cssCurrent = $cssPath . '/' . $lessDir->getFileName();
$directories[$lessCurrent] = $cssCurrent;
$directories = array_merge($directories, lessSearcher($lessCurrent, $cssCurrent));
}
return $directories;
}
$bundles = new DirectoryIterator($bundlePath);
foreach ($bundles as $bundle) {
//we only want the directories and not the .'s
if($bundle->isDot() || !$bundle->isDir()) continue;
//we only want the directories that have a less directory
if(!realpath($bundlePath.'/'.$bundle->getFileName().'/less')) continue;
$lessPath = realpath($bundlePath . '/' . $bundle->getFileName()) . '/less';
$cssPath = realpath($bundlePath . '/' . $bundle->getFileName()) . '/css';
$directories = array_merge($directories, lessSearcher($lessPath, $cssPath));
}
RecursiveDirectoryIterator
可能会更好,但是我无法弄清楚如何实际使用它们。 - Hailwood