1 /*
2 * Copyright (C) 2011, Chris Aniszczyk <zx@redhat.com>
3 * Copyright (C) 2011, Abhishek Bhatnagar <abhatnag@redhat.com>
4 * and other copyright owners as documented in the project's IP log.
5 *
6 * This program and the accompanying materials are made available
7 * under the terms of the Eclipse Distribution License v1.0 which
8 * accompanies this distribution, is reproduced below, and is
9 * available at http://www.eclipse.org/org/documents/edl-v10.php
10 *
11 * All rights reserved.
12 *
13 * Redistribution and use in source and binary forms, with or
14 * without modification, are permitted provided that the following
15 * conditions are met:
16 *
17 * - Redistributions of source code must retain the above copyright
18 * notice, this list of conditions and the following disclaimer.
19 *
20 * - Redistributions in binary form must reproduce the above
21 * copyright notice, this list of conditions and the following
22 * disclaimer in the documentation and/or other materials provided
23 * with the distribution.
24 *
25 * - Neither the name of the Eclipse Foundation, Inc. nor the
26 * names of its contributors may be used to endorse or promote
27 * products derived from this software without specific prior
28 * written permission.
29 *
30 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
31 * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
32 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
33 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
34 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
35 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
36 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
37 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
38 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
39 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
40 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
41 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
42 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
43 */
44 package org.eclipse.jgit.api;
45
46 import static org.eclipse.jgit.lib.Constants.DOT_GIT;
47
48 import java.io.File;
49 import java.io.IOException;
50 import java.util.Collections;
51 import java.util.Set;
52 import java.util.TreeSet;
53
54 import org.eclipse.jgit.api.errors.GitAPIException;
55 import org.eclipse.jgit.api.errors.JGitInternalException;
56 import org.eclipse.jgit.errors.NoWorkTreeException;
57 import org.eclipse.jgit.events.WorkingTreeModifiedEvent;
58 import org.eclipse.jgit.lib.Repository;
59 import org.eclipse.jgit.util.FS;
60 import org.eclipse.jgit.util.FileUtils;
61
62 /**
63 * Remove untracked files from the working tree
64 *
65 * @see <a
66 * href="http://www.kernel.org/pub/software/scm/git/docs/git-clean.html"
67 * >Git documentation about Clean</a>
68 */
69 public class CleanCommand extends GitCommand<Set<String>> {
70
71 private Set<String> paths = Collections.emptySet();
72
73 private boolean dryRun;
74
75 private boolean directories;
76
77 private boolean ignore = true;
78
79 private boolean force = false;
80
81 /**
82 * Constructor for CleanCommand
83 *
84 * @param repo
85 * the {@link org.eclipse.jgit.lib.Repository}
86 */
87 protected CleanCommand(Repository repo) {
88 super(repo);
89 }
90
91 /**
92 * {@inheritDoc}
93 * <p>
94 * Executes the {@code clean} command with all the options and parameters
95 * collected by the setter methods of this class. Each instance of this
96 * class should only be used for one invocation of the command (means: one
97 * call to {@link #call()})
98 */
99 @Override
100 public Set<String> call() throws NoWorkTreeException, GitAPIException {
101 Set<String> files = new TreeSet<>();
102 try {
103 StatusCommand command = new StatusCommand(repo);
104 Status status = command.call();
105
106 Set<String> untrackedFiles = new TreeSet<>(status.getUntracked());
107 Set<String> untrackedDirs = new TreeSet<>(
108 status.getUntrackedFolders());
109
110 FS fs = getRepository().getFS();
111 for (String p : status.getIgnoredNotInIndex()) {
112 File f = new File(repo.getWorkTree(), p);
113 if (fs.isFile(f) || fs.isSymLink(f)) {
114 untrackedFiles.add(p);
115 } else if (fs.isDirectory(f)) {
116 untrackedDirs.add(p);
117 }
118 }
119
120 Set<String> filtered = filterFolders(untrackedFiles, untrackedDirs);
121
122 Set<String> notIgnoredFiles = filterIgnorePaths(filtered,
123 status.getIgnoredNotInIndex(), true);
124 Set<String> notIgnoredDirs = filterIgnorePaths(untrackedDirs,
125 status.getIgnoredNotInIndex(), false);
126
127 for (String file : notIgnoredFiles)
128 if (paths.isEmpty() || paths.contains(file)) {
129 files = cleanPath(file, files);
130 }
131
132 for (String dir : notIgnoredDirs)
133 if (paths.isEmpty() || paths.contains(dir)) {
134 files = cleanPath(dir, files);
135 }
136 } catch (IOException e) {
137 throw new JGitInternalException(e.getMessage(), e);
138 } finally {
139 if (!dryRun && !files.isEmpty()) {
140 repo.fireEvent(new WorkingTreeModifiedEvent(null, files));
141 }
142 }
143 return files;
144 }
145
146 /**
147 * When dryRun is false, deletes the specified path from disk. If dryRun
148 * is true, no paths are actually deleted. In both cases, the paths that
149 * would have been deleted are added to inFiles and returned.
150 *
151 * Paths that are directories are recursively deleted when
152 * {@link #directories} is true.
153 * Paths that are git repositories are recursively deleted when
154 * {@link #directories} and {@link #force} are both true.
155 *
156 * @param path
157 * The path to be cleaned
158 * @param inFiles
159 * A set of strings representing the files that have been cleaned
160 * already, the path to be cleaned will be added to this set
161 * before being returned.
162 *
163 * @return a set of strings with the cleaned path added to it
164 * @throws IOException
165 */
166 private Set<String> cleanPath(String path, Set<String> inFiles)
167 throws IOException {
168 File curFile = new File(repo.getWorkTree(), path);
169 if (curFile.isDirectory()) {
170 if (directories) {
171 // Is this directory a git repository?
172 if (new File(curFile, DOT_GIT).exists()) {
173 if (force) {
174 if (!dryRun) {
175 FileUtils.delete(curFile, FileUtils.RECURSIVE
176 | FileUtils.SKIP_MISSING);
177 }
178 inFiles.add(path + "/"); //$NON-NLS-1$
179 }
180 } else {
181 if (!dryRun) {
182 FileUtils.delete(curFile,
183 FileUtils.RECURSIVE | FileUtils.SKIP_MISSING);
184 }
185 inFiles.add(path + "/"); //$NON-NLS-1$
186 }
187 }
188 } else {
189 if (!dryRun) {
190 FileUtils.delete(curFile, FileUtils.SKIP_MISSING);
191 }
192 inFiles.add(path);
193 }
194
195 return inFiles;
196 }
197
198 private Set<String> filterIgnorePaths(Set<String> inputPaths,
199 Set<String> ignoredNotInIndex, boolean exact) {
200 if (ignore) {
201 Set<String> filtered = new TreeSet<>(inputPaths);
202 for (String path : inputPaths)
203 for (String ignored : ignoredNotInIndex)
204 if ((exact && path.equals(ignored))
205 || (!exact && path.startsWith(ignored))) {
206 filtered.remove(path);
207 break;
208 }
209
210 return filtered;
211 }
212 return inputPaths;
213 }
214
215 private Set<String> filterFolders(Set<String> untracked,
216 Set<String> untrackedFolders) {
217 Set<String> filtered = new TreeSet<>(untracked);
218 for (String file : untracked)
219 for (String folder : untrackedFolders)
220 if (file.startsWith(folder)) {
221 filtered.remove(file);
222 break;
223 }
224
225
226 return filtered;
227 }
228
229 /**
230 * If paths are set, only these paths are affected by the cleaning.
231 *
232 * @param paths
233 * the paths to set (with <code>/</code> as separator)
234 * @return {@code this}
235 */
236 public CleanCommand setPaths(Set<String> paths) {
237 this.paths = paths;
238 return this;
239 }
240
241 /**
242 * If dryRun is set, the paths in question will not actually be deleted.
243 *
244 * @param dryRun
245 * whether to do a dry run or not
246 * @return {@code this}
247 */
248 public CleanCommand setDryRun(boolean dryRun) {
249 this.dryRun = dryRun;
250 return this;
251 }
252
253 /**
254 * If force is set, directories that are git repositories will also be
255 * deleted.
256 *
257 * @param force
258 * whether or not to delete git repositories
259 * @return {@code this}
260 * @since 4.5
261 */
262 public CleanCommand setForce(boolean force) {
263 this.force = force;
264 return this;
265 }
266
267 /**
268 * If dirs is set, in addition to files, also clean directories.
269 *
270 * @param dirs
271 * whether to clean directories too, or only files.
272 * @return {@code this}
273 */
274 public CleanCommand setCleanDirectories(boolean dirs) {
275 directories = dirs;
276 return this;
277 }
278
279 /**
280 * If ignore is set, don't report/clean files/directories that are ignored
281 * by a .gitignore. otherwise do handle them.
282 *
283 * @param ignore
284 * whether to respect .gitignore or not.
285 * @return {@code this}
286 */
287 public CleanCommand setIgnore(boolean ignore) {
288 this.ignore = ignore;
289 return this;
290 }
291 }