diff options
Diffstat (limited to 'framework/src/ant/apache-ant-1.9.6/src/main/org/apache/tools/ant/taskdefs/DependSet.java')
| -rw-r--r-- | framework/src/ant/apache-ant-1.9.6/src/main/org/apache/tools/ant/taskdefs/DependSet.java | 299 |
1 files changed, 0 insertions, 299 deletions
diff --git a/framework/src/ant/apache-ant-1.9.6/src/main/org/apache/tools/ant/taskdefs/DependSet.java b/framework/src/ant/apache-ant-1.9.6/src/main/org/apache/tools/ant/taskdefs/DependSet.java deleted file mode 100644 index dc42beb1..00000000 --- a/framework/src/ant/apache-ant-1.9.6/src/main/org/apache/tools/ant/taskdefs/DependSet.java +++ /dev/null @@ -1,299 +0,0 @@ -/* - * Licensed to the Apache Software Foundation (ASF) under one or more - * contributor license agreements. See the NOTICE file distributed with - * this work for additional information regarding copyright ownership. - * The ASF licenses this file to You under the Apache License, Version 2.0 - * (the "License"); you may not use this file except in compliance with - * the License. You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - * - */ - -package org.apache.tools.ant.taskdefs; - -import java.io.File; -import java.util.Date; -import java.util.Iterator; - -import org.apache.tools.ant.BuildException; -import org.apache.tools.ant.Project; -import org.apache.tools.ant.types.FileList; -import org.apache.tools.ant.types.FileSet; -import org.apache.tools.ant.types.Path; -import org.apache.tools.ant.types.Resource; -import org.apache.tools.ant.types.ResourceCollection; -import org.apache.tools.ant.types.TimeComparison; -import org.apache.tools.ant.types.resources.Resources; -import org.apache.tools.ant.types.resources.Restrict; -import org.apache.tools.ant.types.resources.Union; -import org.apache.tools.ant.types.resources.comparators.ResourceComparator; -import org.apache.tools.ant.types.resources.comparators.Reverse; -import org.apache.tools.ant.types.resources.selectors.Exists; -import org.apache.tools.ant.types.resources.selectors.Not; -import org.apache.tools.ant.types.resources.selectors.ResourceSelector; - -/** - * Examines and removes out of date target files. If any of the target files - * are out of date with respect to any of the source files, all target - * files are removed. This is useful where dependencies cannot be - * computed (for example, dynamically interpreted parameters or files - * that need to stay in synch but are not directly linked) or where - * the ant task in question could compute them but does not (for - * example, the linked DTD for an XML file using the XSLT task). - * - * nested arguments: - * <ul> - * <li>sources (resource union describing the source resources to examine) - * <li>srcfileset (fileset describing the source files to examine) - * <li>srcfilelist (filelist describing the source files to examine) - * <li>targets (path describing the target files to examine) - * <li>targetfileset (fileset describing the target files to examine) - * <li>targetfilelist (filelist describing the target files to examine) - * </ul> - * At least one of both source and target entities is required. - * <p> - * This task will examine each of the sources against each of the target files. If - * any target files are out of date with respect to any of the sources, all targets - * are removed. If any sources or targets do not exist, all targets are removed. - * Hint: If missing files should be ignored, specify them as include patterns - * in filesets, rather than using filelists. - * </p><p> - * This task attempts to optimize speed of dependency checking - * by comparing only the dates of the oldest target file and the newest source. - * </p><p> - * Example uses: - * <ul><li> - * Record the fact that an XML file must be up to date with respect to its XSD - * (Schema file), even though the XML file itself includes no reference to its XSD. - * </li><li> - * Record the fact that an XSL stylesheet includes other sub-stylesheets - * </li><li> - * Record the fact that java files must be recompiled if the ant build file changes - * </li></ul> - * - * @ant.task category="filesystem" - * @since Ant 1.4 - */ -public class DependSet extends MatchingTask { - - private static final ResourceSelector NOT_EXISTS = new Not(new Exists()); - private static final ResourceComparator DATE - = new org.apache.tools.ant.types.resources.comparators.Date(); - private static final ResourceComparator REVERSE_DATE = new Reverse(DATE); - - private static final class NonExistent extends Restrict { - private NonExistent(ResourceCollection rc) { - super.add(rc); - super.add(NOT_EXISTS); - } - } - - private static final class HideMissingBasedir - implements ResourceCollection { - private FileSet fs; - - private HideMissingBasedir(FileSet fs) { - this.fs = fs; - } - public Iterator<Resource> iterator() { - return basedirExists() ? fs.iterator() : Resources.EMPTY_ITERATOR; - } - public int size() { - return basedirExists() ? fs.size() : 0; - } - public boolean isFilesystemOnly() { - return true; - } - private boolean basedirExists() { - File basedir = fs.getDir(); - //trick to evoke "basedir not set" if null: - return basedir == null || basedir.exists(); - } - } - - private Union sources = null; - private Path targets = null; - - private boolean verbose; - - /** - * Create a nested sources element. - * @return a Union instance. - */ - public synchronized Union createSources() { - sources = (sources == null) ? new Union() : sources; - return sources; - } - - /** - * Add a set of source files. - * @param fs the FileSet to add. - */ - public void addSrcfileset(FileSet fs) { - createSources().add(fs); - } - - /** - * Add a list of source files. - * @param fl the FileList to add. - */ - public void addSrcfilelist(FileList fl) { - createSources().add(fl); - } - - /** - * Create a nested targets element. - * @return a Union instance. - */ - public synchronized Path createTargets() { - targets = (targets == null) ? new Path(getProject()) : targets; - return targets; - } - - /** - * Add a set of target files. - * @param fs the FileSet to add. - */ - public void addTargetfileset(FileSet fs) { - createTargets().add(new HideMissingBasedir(fs)); - } - - /** - * Add a list of target files. - * @param fl the FileList to add. - */ - public void addTargetfilelist(FileList fl) { - createTargets().add(fl); - } - - /** - * In verbose mode missing targets and sources as well as the - * modification times of the newest source and latest target will - * be logged as info. - * - * <p>All deleted files will be logged as well.</p> - * - * @since Ant 1.8.0 - */ - public void setVerbose(boolean b) { - verbose = b; - } - - /** - * Execute the task. - * @throws BuildException if errors occur. - */ - public void execute() throws BuildException { - if (sources == null) { - throw new BuildException( - "At least one set of source resources must be specified"); - } - if (targets == null) { - throw new BuildException( - "At least one set of target files must be specified"); - } - //no sources = nothing to compare; no targets = nothing to delete: - if (sources.size() > 0 && targets.size() > 0 && !uptodate(sources, targets)) { - log("Deleting all target files.", Project.MSG_VERBOSE); - if (verbose) { - String[] t = targets.list(); - for (int i = 0; i < t.length; i++) { - log("Deleting " + t[i]); - } - } - Delete delete = new Delete(); - delete.bindToOwner(this); - delete.add(targets); - delete.perform(); - } - } - - private boolean uptodate(ResourceCollection src, ResourceCollection target) { - org.apache.tools.ant.types.resources.selectors.Date datesel - = new org.apache.tools.ant.types.resources.selectors.Date(); - datesel.setMillis(System.currentTimeMillis()); - datesel.setWhen(TimeComparison.AFTER); - // don't whine because a file has changed during the last - // second (or whathever our current granularity may be) - datesel.setGranularity(0); - logFuture(targets, datesel); - - NonExistent missingTargets = new NonExistent(targets); - int neTargets = missingTargets.size(); - if (neTargets > 0) { - log(neTargets + " nonexistent targets", Project.MSG_VERBOSE); - logMissing(missingTargets, "target"); - return false; - } - Resource oldestTarget = getOldest(targets); - logWithModificationTime(oldestTarget, "oldest target file"); - - logFuture(sources, datesel); - - NonExistent missingSources = new NonExistent(sources); - int neSources = missingSources.size(); - if (neSources > 0) { - log(neSources + " nonexistent sources", Project.MSG_VERBOSE); - logMissing(missingSources, "source"); - return false; - } - Resource newestSource = (Resource) getNewest(sources); - logWithModificationTime(newestSource, "newest source"); - return oldestTarget.getLastModified() >= newestSource.getLastModified(); - } - - private void logFuture(ResourceCollection rc, ResourceSelector rsel) { - Restrict r = new Restrict(); - r.add(rsel); - r.add(rc); - for (Resource res : r) { - log("Warning: " + res + " modified in the future.", Project.MSG_WARN); - } - } - - private Resource getXest(ResourceCollection rc, ResourceComparator c) { - Iterator<Resource> i = rc.iterator(); - if (!i.hasNext()) { - return null; - - } - Resource xest = i.next(); - while (i.hasNext()) { - Resource next = i.next(); - if (c.compare(xest, next) < 0) { - xest = next; - } - } - return xest; - } - - private Resource getOldest(ResourceCollection rc) { - return getXest(rc, REVERSE_DATE); - } - - private Resource getNewest(ResourceCollection rc) { - return getXest(rc, DATE); - } - - private void logWithModificationTime(Resource r, String what) { - log(r.toLongString() + " is " + what + ", modified at " - + new Date(r.getLastModified()), - verbose ? Project.MSG_INFO : Project.MSG_VERBOSE); - } - - private void logMissing(ResourceCollection missing, String what) { - if (verbose) { - for (Resource r : missing) { - log("Expected " + what + " " + r.toLongString() - + " is missing."); - } - } - } -} |