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<?php
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/**
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* This software consists of voluntary contributions made by many individuals
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* and is licensed under the LGPL. For more information please see
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* <http://phing.info>.
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*/
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/**
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* Condition returns true if selected partition has the requested space, false otherwise.
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*
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* @author Siad Ardroumli <siad.ardroumli@gmail.com>
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* @package phing.tasks.system.condition
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*/
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class HasFreeSpaceCondition implements Condition
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{
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/**
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* @var string $partition
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*/
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private $partition;
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/**
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* @var string $needed
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*/
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private $needed;
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/**
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* {@inheritdoc}
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*
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* @throws BuildException
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*
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* @return boolean
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*/
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public function evaluate()
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{
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$this->validate();
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$free = disk_free_space($this->partition);
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return $free >= $this->parseHumanSizes($this->needed);
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}
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/**
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* @return void
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*
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* @throws BuildException
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*/
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private function validate()
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{
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if (null == $this->partition) {
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throw new BuildException("Please set the partition attribute.");
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}
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if (null == $this->needed) {
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throw new BuildException("Please set the needed attribute.");
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}
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}
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/**
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* Set the partition/device to check.
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*
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* @param $partition
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*
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* @return void
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*/
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public function setPartition($partition)
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{
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$this->partition = $partition;
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}
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/**
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* Set the amount of free space required.
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*
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* @return void
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*/
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public function setNeeded($needed)
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{
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$this->needed = $needed;
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}
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/**
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* @param string $humanSize
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*
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* @return float
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*/
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private function parseHumanSizes($humanSize)
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{
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if (ctype_alpha($char = $humanSize[strlen($humanSize - 1)])) {
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$value = (float) substr($humanSize, 0, strlen($humanSize - 1));
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switch ($char) {
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case 'K':
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return $value * 1024;
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case 'M':
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return $value * 1024 * 1024;
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case 'G':
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return $value * 1024 * 1024 * 1024;
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case 'T':
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return $value * 1024 * 1024 * 1024 * 1024;
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case 'P':
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return $value * 1024 * 1024 * 1024 * 1024 * 1024;
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default:
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return $value;
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}
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} else {
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return (float) $humanSize;
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}
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}
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}
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siad007