1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
|
/*
* Copyright (C) 2010, 2012 Chris Aniszczyk <caniszczyk@gmail.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 java.io.File;
import java.io.IOException;
import java.util.Collection;
import java.util.LinkedList;
import org.eclipse.jgit.api.errors.GitAPIException;
import org.eclipse.jgit.api.errors.JGitInternalException;
import org.eclipse.jgit.api.errors.NoFilepatternException;
import org.eclipse.jgit.dircache.DirCache;
import org.eclipse.jgit.dircache.DirCacheBuildIterator;
import org.eclipse.jgit.dircache.DirCacheBuilder;
import org.eclipse.jgit.internal.JGitText;
import org.eclipse.jgit.lib.Constants;
import org.eclipse.jgit.lib.FileMode;
import org.eclipse.jgit.lib.Repository;
import org.eclipse.jgit.treewalk.TreeWalk;
import org.eclipse.jgit.treewalk.filter.PathFilterGroup;
/**
* Remove files from the index and working directory (or optionally only from
* the index).
* <p>
* It has setters for all supported options and arguments of this command and a
* {@link #call()} method to finally execute the command. Each instance of this
* class should only be used for one invocation of the command (means: one call
* to {@link #call()}).
* <p>
* Examples (<code>git</code> is a {@link Git} instance):
* <p>
* Remove file "test.txt" from both index and working directory:
*
* <pre>
* git.rm().addFilepattern("test.txt").call();
* </pre>
* <p>
* Remove file "new.txt" from the index (but not from the working directory):
*
* <pre>
* git.rm().setCached(true).addFilepattern("new.txt").call();
* </pre>
*
* @see <a href="http://www.kernel.org/pub/software/scm/git/docs/git-rm.html"
* >Git documentation about Rm</a>
*/
public class RmCommand extends GitCommand<DirCache> {
private Collection<String> filepatterns;
/** Only remove files from index, not from working directory */
private boolean cached = false;
/**
*
* @param repo
*/
public RmCommand(Repository repo) {
super(repo);
filepatterns = new LinkedList<String>();
}
/**
* @param filepattern
* repository-relative path of file to remove (with
* <code>/</code> as separator)
* @return {@code this}
*/
public RmCommand addFilepattern(String filepattern) {
checkCallable();
filepatterns.add(filepattern);
return this;
}
/**
* Only remove the specified files from the index.
*
* @param cached
* true if files should only be removed from index, false if
* files should also be deleted from the working directory
* @return {@code this}
* @since 2.2
*/
public RmCommand setCached(boolean cached) {
checkCallable();
this.cached = cached;
return this;
}
/**
* Executes the {@code Rm} command. Each instance of this class should only
* be used for one invocation of the command. Don't call this method twice
* on an instance.
*
* @return the DirCache after Rm
*/
public DirCache call() throws GitAPIException,
NoFilepatternException {
if (filepatterns.isEmpty())
throw new NoFilepatternException(JGitText.get().atLeastOnePatternIsRequired);
checkCallable();
DirCache dc = null;
try (final TreeWalk tw = new TreeWalk(repo)) {
dc = repo.lockDirCache();
DirCacheBuilder builder = dc.builder();
tw.reset(); // drop the first empty tree, which we do not need here
tw.setRecursive(true);
tw.setFilter(PathFilterGroup.createFromStrings(filepatterns));
tw.addTree(new DirCacheBuildIterator(builder));
while (tw.next()) {
if (!cached) {
final FileMode mode = tw.getFileMode(0);
if (mode.getObjectType() == Constants.OBJ_BLOB) {
final File path = new File(repo.getWorkTree(),
tw.getPathString());
// Deleting a blob is simply a matter of removing
// the file or symlink named by the tree entry.
delete(path);
}
}
}
builder.commit();
setCallable(false);
} catch (IOException e) {
throw new JGitInternalException(
JGitText.get().exceptionCaughtDuringExecutionOfRmCommand, e);
} finally {
if (dc != null)
dc.unlock();
}
return dc;
}
private void delete(File p) {
while (p != null && !p.equals(repo.getWorkTree()) && p.delete())
p = p.getParentFile();
}
}
|
