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Diffstat (limited to 'buildscripts/phing/classes/phing/tasks/system/ReflexiveTask.php')
| -rwxr-xr-x | buildscripts/phing/classes/phing/tasks/system/ReflexiveTask.php | 155 |
1 files changed, 155 insertions, 0 deletions
diff --git a/buildscripts/phing/classes/phing/tasks/system/ReflexiveTask.php b/buildscripts/phing/classes/phing/tasks/system/ReflexiveTask.php new file mode 100755 index 00000000..d49c47f2 --- /dev/null +++ b/buildscripts/phing/classes/phing/tasks/system/ReflexiveTask.php @@ -0,0 +1,155 @@ +<?php +/* + * $Id: 3dcb1ad6e9fd3b2801c1fe3bcbaf2fcab8ea6018 $ + * + * 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>. + */ + +require_once 'phing/Task.php'; + +/** + * This task is for using filter chains to make changes to files and overwrite the original files. + * + * This task was created to serve the need for "cleanup" tasks -- e.g. a ReplaceRegexp task or strip task + * being used to modify files and then overwrite the modified files. In many (most?) cases you probably + * should just use a copy task to preserve the original source files, but this task supports situations + * where there is no src vs. build directory, and modifying source files is actually desired. + * + * <code> + * <reflexive> + * <fileset dir="."> + * <include pattern="*.html"> + * </fileset> + * <filterchain> + * <replaceregexp> + * <regexp pattern="\n\r" replace="\n"/> + * </replaceregexp> + * </filterchain> + * </reflexive> + * </code> + * + * @author Hans Lellelid <hans@xmpl.org> + * @version $Id$ + * @package phing.tasks.system + */ +class ReflexiveTask extends Task { + + /** Single file to process. */ + private $file; + + /** Any filesets that should be processed. */ + private $filesets = array(); + + /** Any filters to be applied before append happens. */ + private $filterChains = array(); + + /** Alias for setFrom() */ + function setFile(PhingFile $f) { + $this->file = $f; + } + + /** Nested creator, adds a set of files (nested fileset attribute). */ + function createFileSet() { + $num = array_push($this->filesets, new FileSet()); + return $this->filesets[$num-1]; + } + + /** + * Creates a filterchain + * + * @return object The created filterchain object + */ + function createFilterChain() { + $num = array_push($this->filterChains, new FilterChain($this->project)); + return $this->filterChains[$num-1]; + } + + /** Append the file(s). */ + function main() { + + if ($this->file === null && empty($this->filesets)) { + throw new BuildException("You must specify a file or fileset(s) for the <reflexive> task."); + } + + // compile a list of all files to modify, both file attrib and fileset elements + // can be used. + + $files = array(); + + if ($this->file !== null) { + $files[] = $this->file; + } + + if (!empty($this->filesets)) { + $filenames = array(); + foreach($this->filesets as $fs) { + try { + $ds = $fs->getDirectoryScanner($this->project); + $filenames = $ds->getIncludedFiles(); // get included filenames + $dir = $fs->getDir($this->project); + foreach ($filenames as $fname) { + $files[] = new PhingFile($dir, $fname); + } + } catch (BuildException $be) { + $this->log($be->getMessage(), Project::MSG_WARN); + } + } + } + + $this->log("Applying reflexive processing to " . count($files) . " files."); + + // These "slots" allow filters to retrieve information about the currently-being-process files + $slot = $this->getRegisterSlot("currentFile"); + $basenameSlot = $this->getRegisterSlot("currentFile.basename"); + + + foreach($files as $file) { + // set the register slots + + $slot->setValue($file->getPath()); + $basenameSlot->setValue($file->getName()); + + // 1) read contents of file, pulling through any filters + $in = null; + try { + $contents = ""; + $in = FileUtils::getChainedReader(new FileReader($file), $this->filterChains, $this->project); + while(-1 !== ($buffer = $in->read())) { + $contents .= $buffer; + } + $in->close(); + } catch (Exception $e) { + if ($in) $in->close(); + $this->log("Erorr reading file: " . $e->getMessage(), Project::MSG_WARN); + } + + try { + // now create a FileWriter w/ the same file, and write to the file + $out = new FileWriter($file); + $out->write($contents); + $out->close(); + $this->log("Applying reflexive processing to " . $file->getPath(), Project::MSG_VERBOSE); + } catch (Exception $e) { + if ($out) $out->close(); + $this->log("Error writing file back: " . $e->getMessage(), Project::MSG_WARN); + } + + } + + } + +} |