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<?php
/*
* $Id: SourceFileScanner.php,v 1.11 2005/05/26 13:10:53 mrook Exp $
*
* 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>.
*/
/**
* Utility class that collects the functionality of the various
* scanDir methods that have been scattered in several tasks before.
*
* The only method returns an array of source files. The array is a
* subset of the files given as a parameter and holds only those that
* are newer than their corresponding target files.
* @package phing.util
*/
class SourceFileScanner {
/** Instance of FileUtils */
private $fileUtils;
/** Task this class is working for -- for logging purposes. */
private $task;
/**
* @param task The task we should log messages through
*/
function __construct($task) {
$this->task = $task;
$this->fileUtils = new FileUtils();
}
/**
* Restrict the given set of files to those that are newer than
* their corresponding target files.
*
* @param files the original set of files
* @param srcDir all files are relative to this directory
* @param destDir target files live here. if null file names
* returned by the mapper are assumed to be absolute.
* @param FilenameMapper knows how to construct a target file names from
* source file names.
* @param force Boolean that determines if the files should be
* forced to be copied.
*/
function restrict(&$files, $srcDir, $destDir, $mapper, $force = false) {
$now = time();
$targetList = "";
/*
If we're on Windows, we have to munge the time up to 2 secs to
be able to check file modification times.
(Windows has a max resolution of two secs for modification times)
*/
$osname = strtolower(Phing::getProperty('os.name'));
// indexOf()
$index = ((($res = strpos($osname, 'win')) === false) ? -1 : $res);
if ($index >= 0 ) {
$now += 2000;
}
$v = array();
for ($i=0, $size=count($files); $i < $size; $i++) {
$targets = $mapper->main($files[$i]);
if (empty($targets)) {
$this->task->log($files[$i]." skipped - don't know how to handle it", PROJECT_MSG_VERBOSE);
continue;
}
$src = null;
try {
if ($srcDir === null) {
$src = new PhingFile($files[$i]);
} else {
$src = $this->fileUtils->resolveFile($srcDir, $files[$i]);
}
if ($src->lastModified() > $now) {
$this->task->log("Warning: ".$files[$i]." modified in the future (".$src->lastModified()." > ".$now.")", PROJECT_MSG_WARN);
}
} catch (IOException $ioe) {
$this->task->log("Unable to read file ".$files[$i]." (skipping): " . $ioe->getMessage());
continue;
}
$added = false;
$targetList = "";
for ($j=0,$_j=count($targets); (!$added && $j < $_j); $j++) {
$dest = null;
if ($destDir === null) {
$dest = new PhingFile($targets[$j]);
} else {
$dest = $this->fileUtils->resolveFile($destDir, $targets[$j]);
}
if (!$dest->exists()) {
$this->task->log($files[$i]." added as " . $dest->__toString() . " doesn't exist.", PROJECT_MSG_VERBOSE);
$v[] =$files[$i];
$added = true;
} elseif ($src->lastModified() > $dest->lastModified()) {
$this->task->log($files[$i]." added as " . $dest->__toString() . " is outdated.", PROJECT_MSG_VERBOSE );
$v[]=$files[$i];
$added = true;
} elseif ($force === true) {
$this->task->log($files[$i]." added as " . $dest->__toString() . " is forced to be overwritten.", PROJECT_MSG_VERBOSE );
$v[]=$files[$i];
$added = true;
} else {
if (strlen($targetList) > 0) {
$targetList .= ", ";
}
$targetList .= $dest->getAbsolutePath();
}
}
if (!$added) {
$this->task->log($files[$i]." omitted as ".$targetList." ".(count($targets) === 1 ? " is " : " are ")."up to date.", PROJECT_MSG_VERBOSE);
}
}
$result = array();
$result = $v;
return $result;
}
/**
* Convenience layer on top of restrict that returns the source
* files as PhingFile objects (containing absolute paths if srcDir is
* absolute).
*/
function restrictAsFiles(&$files, &$srcDir, &$destDir, &$mapper) {
$res = $this->restrict($files, $srcDir, $destDir, $mapper);
$result = array();
for ($i=0; $i<count($res); $i++) {
$result[$i] = new PhingFile($srcDir, $res[$i]);
}
return $result;
}
}
?>
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