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
|
/*******************************************************************************
* Copyright (C) 2013, 2019 Robin Stocker <robin@nibor.org> and others
*
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License 2.0
* which accompanies this distribution, and is available at
* https://www.eclipse.org/legal/epl-2.0/
*
* SPDX-License-Identifier: EPL-2.0
*******************************************************************************/
package org.eclipse.egit.ui.internal.revision;
import java.io.BufferedOutputStream;
import java.io.IOException;
import java.lang.reflect.InvocationTargetException;
import java.util.Objects;
import org.eclipse.core.filesystem.EFS;
import org.eclipse.core.filesystem.IFileStore;
import org.eclipse.core.resources.IFile;
import org.eclipse.core.resources.IResource;
import org.eclipse.core.resources.ResourcesPlugin;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IPath;
import org.eclipse.core.runtime.jobs.ISchedulingRule;
import org.eclipse.core.runtime.jobs.Job;
import org.eclipse.egit.ui.Activator;
import org.eclipse.jface.operation.IRunnableContext;
import org.eclipse.jgit.annotations.NonNull;
import org.eclipse.team.core.history.IFileRevision;
/**
* Editable revision backed by a file outside of the workspace (just IPath).
* Used for conflict resolutions with stage 2 (previous HEAD) as input; updating
* the working tree file.
* <p>
* If you have a backing {@link IFile}, use {@link ResourceEditableRevision}.
*/
public class LocationEditableRevision extends EditableRevision {
private final IPath location;
private final IRunnableContext runnableContext;
/**
* @param fileRevision
* @param location
* @param runnableContext
*/
public LocationEditableRevision(IFileRevision fileRevision,
@NonNull IPath location,
@NonNull IRunnableContext runnableContext) {
super(fileRevision, null);
this.location = location;
this.runnableContext = runnableContext;
}
@Override
public void setContent(final byte[] newContent) {
try {
// Don't fork: if we are called from a thread which locked
// workspace our *forked* operation will never complete because it
// requires file lock which cannot be acquired from another thread
ISchedulingRule rule = Job.getJobManager().currentRule();
boolean fork = true;
if (rule instanceof IResource) {
IFile ourFile = ResourcesPlugin.getWorkspace().getRoot()
.getFile(location);
if (ourFile.exists()
&& ((IResource) rule).isConflicting(ourFile))
fork = false;
}
runnableContext.run(fork, false, monitor -> {
IFileStore store = EFS.getLocalFileSystem().getStore(location);
try (BufferedOutputStream out = new BufferedOutputStream(
store.openOutputStream(EFS.NONE, monitor))) {
out.write(newContent);
} catch (CoreException | IOException e) {
throw new InvocationTargetException(e);
}
});
} catch (InvocationTargetException e) {
Activator.handleError(e.getTargetException().getMessage(),
e.getTargetException(), true);
} catch (InterruptedException e) {
// ignore here
}
}
@Override
public int hashCode() {
return 31 * super.hashCode() + Objects.hash(location, runnableContext);
}
@Override
public boolean equals(Object obj) {
if (this == obj) {
return true;
}
if (obj == null || !super.equals(obj) || getClass() != obj.getClass()) {
return false;
}
LocationEditableRevision other = (LocationEditableRevision) obj;
return Objects.equals(location, other.location)
&& Objects.equals(runnableContext, other.runnableContext);
}
}
|
