2
This code is derived from jgit (http://eclipse.org/jgit).
3
Copyright owners are documented in jgit's IP log.
5
This program and the accompanying materials are made available
6
under the terms of the Eclipse Distribution License v1.0 which
7
accompanies this distribution, is reproduced below, and is
8
available at http://www.eclipse.org/org/documents/edl-v10.php
12
Redistribution and use in source and binary forms, with or
13
without modification, are permitted provided that the following
16
- Redistributions of source code must retain the above copyright
17
notice, this list of conditions and the following disclaimer.
19
- Redistributions in binary form must reproduce the above
20
copyright notice, this list of conditions and the following
21
disclaimer in the documentation and/or other materials provided
22
with the distribution.
24
- Neither the name of the Eclipse Foundation, Inc. nor the
25
names of its contributors may be used to endorse or promote
26
products derived from this software without specific prior
29
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
30
CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
31
INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
32
OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
33
ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
34
CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
35
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
36
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
37
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
38
CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
39
STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
40
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
41
ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
45
using NGit.Storage.File;
49
namespace NGit.Storage.File
53
/// <see cref="PackFile">PackFile</see>
54
/// 's associated <code>.keep</code> file.
58
private readonly FilePath keepFile;
60
private readonly FS fs;
62
/// <summary>Create a new lock for a pack file.</summary>
63
/// <remarks>Create a new lock for a pack file.</remarks>
64
/// <param name="packFile">location of the <code>pack-*.pack</code> file.</param>
65
/// <param name="fs">the filesystem abstraction used by the repository.</param>
66
public PackLock(FilePath packFile, FS fs)
68
FilePath p = packFile.GetParentFile();
69
string n = packFile.GetName();
70
keepFile = new FilePath(p, Sharpen.Runtime.Substring(n, 0, n.Length - 5) + ".keep"
75
/// <summary>Create the <code>pack-*.keep</code> file, with the given message.</summary>
76
/// <remarks>Create the <code>pack-*.keep</code> file, with the given message.</remarks>
77
/// <param name="msg">message to store in the file.</param>
78
/// <returns>true if the keep file was successfully written; false otherwise.</returns>
79
/// <exception cref="System.IO.IOException">the keep file could not be written.</exception>
80
public virtual bool Lock(string msg)
86
if (!msg.EndsWith("\n"))
90
LockFile lf = new LockFile(keepFile, fs);
95
lf.Write(Constants.Encode(msg));
99
/// <summary>Remove the <code>.keep</code> file that holds this pack in place.</summary>
100
/// <remarks>Remove the <code>.keep</code> file that holds this pack in place.</remarks>
101
/// <exception cref="System.IO.IOException">if deletion of .keep file failed</exception>
102
public virtual void Unlock()
104
FileUtils.Delete(keepFile);