/*
* Copyright (C) 2011, Chris Aniszczyk <zx@redhat.com>
* Copyright (C) 2011, Abhishek Bhatnagar <abhatnag@redhat.com>
* and other copyright owners as documented in the project's IP log.
*
* This program and the accompanying materials are made available
* under the terms of the Eclipse Distribution License v1.0 which
* accompanies this distribution, is reproduced below, and is
* available at http://www.eclipse.org/org/documents/edl-v10.php
*
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or
* without modification, are permitted provided that the following
* conditions are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* - Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials provided
* with the distribution.
*
* - Neither the name of the Eclipse Foundation, Inc. nor the
* names of its contributors may be used to endorse or promote
* products derived from this software without specific prior
* written permission.
*
* 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.
*/
package org.eclipse.jgit.api;
import static org.eclipse.jgit.lib.Constants.DOT_GIT;
import java.io.File;
import java.io.IOException;
import java.util.Collections;
import java.util.Set;
import java.util.TreeSet;
import org.eclipse.jgit.api.errors.GitAPIException;
import org.eclipse.jgit.api.errors.JGitInternalException;
import org.eclipse.jgit.errors.NoWorkTreeException;
import org.eclipse.jgit.lib.Repository;
import org.eclipse.jgit.util.FS;
import org.eclipse.jgit.util.FileUtils;
/**
* Remove untracked files from the working tree
*
* @see <a
* href="http://www.kernel.org/pub/software/scm/git/docs/git-clean.html"
* >Git documentation about Clean</a>
*/
public class CleanCommand extends GitCommand<Set<String>> {
private Set<String> paths = Collections.emptySet();
private boolean dryRun;
private boolean directories;
private boolean ignore = true;
private boolean force = false;
/**
* @param repo
*/
protected CleanCommand(Repository repo) {
super(repo);
}
/**
* Executes the {@code clean} command with all the options and parameters
* collected by the setter methods of this class. Each instance of this
* class should only be used for one invocation of the command (means: one
* call to {@link #call()})
*
* @return a set of strings representing each file cleaned.
* @throws GitAPIException
* @throws NoWorkTreeException
*/
public Set<String> call() throws NoWorkTreeException, GitAPIException {
Set<String> files = new TreeSet<String>();
try {
StatusCommand command = new StatusCommand(repo);
Status status = command.call();
Set<String> untrackedAndIgnoredFiles = new TreeSet<String>(
status.getUntracked());
Set<String> untrackedAndIgnoredDirs = new TreeSet<String>(
status.getUntrackedFolders());
FS fs = getRepository().getFS();
for (String p : status.getIgnoredNotInIndex()) {
File f = new File(repo.getWorkTree(), p);
if (fs.isFile(f) || fs.isSymLink(f))
untrackedAndIgnoredFiles.add(p);
else if (fs.isDirectory(f))
untrackedAndIgnoredDirs.add(p);
}
Set<String> filtered = filterFolders(untrackedAndIgnoredFiles,
untrackedAndIgnoredDirs);
Set<String> notIgnoredFiles = filterIgnorePaths(filtered,
status.getIgnoredNotInIndex(), true);
Set<String> notIgnoredDirs = filterIgnorePaths(
untrackedAndIgnoredDirs,
status.getIgnoredNotInIndex(), false);
for (String file : notIgnoredFiles)
if (paths.isEmpty() || paths.contains(file)) {
files = cleanPath(file, files);
}
for (String dir : notIgnoredDirs)
if (paths.isEmpty() || paths.contains(dir)) {
files = cleanPath(dir, files);
}
} catch (IOException e) {
throw new JGitInternalException(e.getMessage(), e);
}
return files;
}
/**
* When dryRun is false, deletes the specified path from disk. If dryRun
* is true, no paths are actually deleted. In both cases, the paths that
* would have been deleted are added to inFiles and returned.
*
* Paths that are directories are recursively deleted when
* {@link #directories} is true.
* Paths that are git repositories are recursively deleted when
* {@link #directories} and {@link #force} are both true.
*
* @param path
* The path to be cleaned
* @param inFiles
* A set of strings representing the files that have been cleaned
* already, the path to be cleaned will be added to this set
* before being returned.
*
* @return a set of strings with the cleaned path added to it
* @throws IOException
*/
private Set<String> cleanPath(String path, Set<String> inFiles)
throws IOException {
File curFile = new File(repo.getWorkTree(), path);
if (curFile.isDirectory()) {
if (directories) {
// Is this directory a git repository?
if (new File(curFile, DOT_GIT).exists()) {
if (force) {
if (!dryRun) {
FileUtils.delete(curFile, FileUtils.RECURSIVE);
}
inFiles.add(path + "/"); //$NON-NLS-1$
}
} else {
if (!dryRun) {
FileUtils.delete(curFile, FileUtils.RECURSIVE);
}
inFiles.add(path + "/"); //$NON-NLS-1$
}
}
} else {
if (!dryRun) {
FileUtils.delete(curFile, FileUtils.NONE);
}
inFiles.add(path);
}
return inFiles;
}
private Set<String> filterIgnorePaths(Set<String> inputPaths,
Set<String> ignoredNotInIndex, boolean exact) {
if (ignore) {
Set<String> filtered = new TreeSet<String>(inputPaths);
for (String path : inputPaths)
for (String ignored : ignoredNotInIndex)
if ((exact && path.equals(ignored))
|| (!exact && path.startsWith(ignored))) {
filtered.remove(path);
break;
}
return filtered;
}
return inputPaths;
}
private Set<String> filterFolders(Set<String> untracked,
Set<String> untrackedFolders) {
Set<String> filtered = new TreeSet<String>(untracked);
for (String file : untracked)
for (String folder : untrackedFolders)
if (file.startsWith(folder)) {
filtered.remove(file);
break;
}
return filtered;
}
/**
* If paths are set, only these paths are affected by the cleaning.
*
* @param paths
* the paths to set (with <code>/</code> as separator)
* @return {@code this}
*/
public CleanCommand setPaths(Set<String> paths) {
this.paths = paths;
return this;
}
/**
* If dryRun is set, the paths in question will not actually be deleted.
*
* @param dryRun
* whether to do a dry run or not
* @return {@code this}
*/
public CleanCommand setDryRun(boolean dryRun) {
this.dryRun = dryRun;
return this;
}
/**
* If force is set, directories that are git repositories will also be
* deleted.
*
* @param force
* whether or not to delete git repositories
* @return {@code this}
* @since 4.5
*/
public CleanCommand setForce(boolean force) {
this.force = force;
return this;
}
/**
* If dirs is set, in addition to files, also clean directories.
*
* @param dirs
* whether to clean directories too, or only files.
* @return {@code this}
*/
public CleanCommand setCleanDirectories(boolean dirs) {
directories = dirs;
return this;
}
/**
* If ignore is set, don't report/clean files/directories that are ignored
* by a .gitignore. otherwise do handle them.
*
* @param ignore
* whether to respect .gitignore or not.
* @return {@code this}
*/
public CleanCommand setIgnore(boolean ignore) {
this.ignore = ignore;
return this;
}
}