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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,173 @@ | ||
| <?php | ||
| /** | ||
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | ||
| * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | ||
| * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | ||
| * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | ||
| * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | ||
| * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | ||
| * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | ||
| * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | ||
| * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | ||
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | ||
| * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | ||
| * | ||
| * This software consists of voluntary contributions made by many individuals | ||
| * and is licensed under the LGPL. For more information please see | ||
| * <http://phing.info>. | ||
| */ | ||
| include_once 'phing/Task.php'; | ||
| include_once 'phing/system/io/PhingFile.php'; | ||
| include_once 'phing/BuildException.php'; | ||
|
|
||
| /** | ||
| * @author Siad Ardroumli <siad.ardroumli@gmail.com> | ||
| * @package phing.tasks.system | ||
| */ | ||
| class TruncateTask extends Task | ||
| { | ||
| private $create = true; | ||
| private $mkdirs = false; | ||
|
|
||
| private $length; | ||
| private $adjust; | ||
| private $file; | ||
|
|
||
| /** | ||
| * Set a single target File. | ||
| * @param PhingFile|string $f the single File | ||
| * @throws \IOException | ||
| * @throws \NullPointerException | ||
| */ | ||
| public function setFile($f) | ||
| { | ||
| if (is_string($f)) { | ||
| $f = new PhingFile($f); | ||
| } | ||
| $this->file = $f; | ||
| } | ||
|
|
||
| /** | ||
| * Set the amount by which files' lengths should be adjusted. | ||
| * It is permissible to append K / M / G / T / P. | ||
| * @param $adjust (positive or negative) adjustment amount. | ||
| */ | ||
| public function setAdjust($adjust) | ||
| { | ||
| $this->adjust = $adjust; | ||
| } | ||
|
|
||
| /** | ||
| * Set the length to which files should be set. | ||
| * It is permissible to append K / M / G / T / P. | ||
| * @param $length (positive) adjustment amount. | ||
| * | ||
| * @throws \BuildException | ||
| */ | ||
| public function setLength($length) | ||
| { | ||
| $this->length = $length; | ||
| if ($this->length !== null && $this->length < 0) { | ||
| throw new BuildException('Cannot truncate to length ' . $this->length); | ||
| } | ||
| } | ||
|
|
||
| /** | ||
| * Set whether to create nonexistent files. | ||
| * @param boolean $create default <code>true</code>. | ||
| */ | ||
| public function setCreate($create) | ||
| { | ||
| $this->create = $create; | ||
| } | ||
|
|
||
| /** | ||
| * Set whether, when creating nonexistent files, nonexistent directories | ||
| * should also be created. | ||
| * @param boolean $mkdirs default <code>false</code>. | ||
| */ | ||
| public function setMkdirs($mkdirs) | ||
| { | ||
| $this->mkdirs = $mkdirs; | ||
| } | ||
|
|
||
| /** | ||
| * {@inheritDoc}. | ||
| * @throws \BuildException | ||
| */ | ||
| public function main() | ||
| { | ||
| if ($this->length !== null && $this->adjust !== null) { | ||
| throw new BuildException( | ||
| 'length and adjust are mutually exclusive options' | ||
| ); | ||
| } | ||
| if ($this->length === null && $this->adjust === null) { | ||
| $this->length = 0; | ||
| } | ||
| if ($this->file === null) { | ||
| throw new BuildException('No files specified.'); | ||
| } | ||
|
|
||
| if ($this->shouldProcess($this->file)) { | ||
| $this->process($this->file); | ||
| } | ||
| } | ||
|
|
||
| /** | ||
| * @param PhingFile $f | ||
| * @return bool | ||
| * @throws \BuildException | ||
| */ | ||
| private function shouldProcess(PhingFile $f) | ||
| { | ||
| if ($f->isFile()) { | ||
| return true; | ||
| } | ||
| if (!$this->create) { | ||
| return false; | ||
| } | ||
| $exception = null; | ||
| try { | ||
| /** @var PhingFile $parent */ | ||
| $parent = $f->getParentFile(); | ||
| if ($this->mkdirs && !$parent->exists()) { | ||
| $parent->mkdirs(); | ||
| } | ||
|
|
||
| if ($f->createNewFile()) { | ||
| return true; | ||
| } | ||
| } catch (IOException $e) { | ||
| $exception = $e; | ||
| } | ||
| $msg = "Unable to create " . $f; | ||
| if ($exception === null) { | ||
| $this->log($msg, Project::MSG_WARN); | ||
| return false; | ||
| } | ||
| throw new BuildException($msg, $exception); | ||
| } | ||
|
|
||
| private function process(PhingFile $f) | ||
| { | ||
| $len = $f->length(); | ||
| $newLength = $this->length === null | ||
| ? $len + $this->adjust | ||
| : $this->length; | ||
|
|
||
| if ($len === $newLength) { | ||
| //nothing to do! | ||
| return; | ||
| } | ||
|
|
||
| $splFile = new SplFileObject($f->getPath(), 'a+'); | ||
|
|
||
| if (!$splFile->ftruncate((int) $newLength)) { | ||
| throw new BuildException("Exception working with " . (string)$splFile); | ||
| } | ||
|
|
||
| $splFile->rewind(); | ||
| clearstatcache(); | ||
| } | ||
| } |
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