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
|
using System;
using System.Collections.Generic;
using System.Globalization;
using System.IO;
using System.Linq;
using System.Runtime.InteropServices;
using LibGit2Sharp.Core;
using LibGit2Sharp.Core.Handles;
namespace LibGit2Sharp
{
/// <summary>
/// Provides methods to directly work against the Git object database
/// without involving the index nor the working directory.
/// </summary>
public class ObjectDatabase
{
private readonly Repository repo;
private readonly ObjectDatabaseSafeHandle handle;
/// <summary>
/// Needed for mocking purposes.
/// </summary>
protected ObjectDatabase()
{ }
internal ObjectDatabase(Repository repo)
{
this.repo = repo;
handle = Proxy.git_repository_odb(repo.Handle);
repo.RegisterForCleanup(handle);
}
/// <summary>
/// Determines if the given object can be found in the object database.
/// </summary>
/// <param name="objectId">Identifier of the object being searched for.</param>
/// <returns>True if the object has been found; false otherwise.</returns>
public virtual bool Contains(ObjectId objectId)
{
Ensure.ArgumentNotNull(objectId, "objectId");
return Proxy.git_odb_exists(handle, objectId);
}
/// <summary>
/// Inserts a <see cref="Blob"/> into the object database, created from the content of a file.
/// </summary>
/// <param name="path">Path to the file to create the blob from. A relative path is allowed to
/// be passed if the <see cref="Repository" /> is a standard, non-bare, repository. The path
/// will then be considered as a path relative to the root of the working directory.</param>
/// <returns>The created <see cref="Blob"/>.</returns>
public virtual Blob CreateBlob(string path)
{
Ensure.ArgumentNotNullOrEmptyString(path, "path");
if (repo.Info.IsBare && !Path.IsPathRooted(path))
{
throw new InvalidOperationException(
string.Format(CultureInfo.InvariantCulture,
"Cannot create a blob in a bare repository from a relative path ('{0}').", path));
}
ObjectId id = Path.IsPathRooted(path)
? Proxy.git_blob_create_fromdisk(repo.Handle, path)
: Proxy.git_blob_create_fromfile(repo.Handle, path);
return repo.Lookup<Blob>(id);
}
/// <summary>
/// Adds the provided backend to the object database with the specified priority.
/// </summary>
/// <param name="backend">The backend to add</param>
/// <param name="priority">The priority at which libgit2 should consult this backend (higher values are consulted first)</param>
public virtual void AddBackend(OdbBackend backend, int priority)
{
Ensure.ArgumentNotNull(backend, "backend");
Ensure.ArgumentConformsTo(priority, s => s > 0, "priority");
Proxy.git_odb_add_backend(this.handle, backend.GitOdbBackendPointer, priority);
}
private class Processor
{
private readonly BinaryReader _reader;
public Processor(BinaryReader reader)
{
_reader = reader;
}
public int Provider(IntPtr content, int max_length, IntPtr data)
{
var local = new byte[max_length];
int numberOfReadBytes = _reader.Read(local, 0, max_length);
Marshal.Copy(local, 0, content, numberOfReadBytes);
return numberOfReadBytes;
}
}
/// <summary>
/// Inserts a <see cref="Blob"/> into the object database, created from the content of a data provider.
/// </summary>
/// <param name="reader">The reader that will provide the content of the blob to be created.</param>
/// <param name="hintpath">The hintpath is used to determine what git filters should be applied to the object before it can be placed to the object database.</param>
/// <returns>The created <see cref="Blob"/>.</returns>
public virtual Blob CreateBlob(BinaryReader reader, string hintpath = null)
{
Ensure.ArgumentNotNull(reader, "reader");
var proc = new Processor(reader);
ObjectId id = Proxy.git_blob_create_fromchunks(repo.Handle, hintpath, proc.Provider);
return repo.Lookup<Blob>(id);
}
/// <summary>
/// Inserts a <see cref = "Tree"/> into the object database, created from a <see cref = "TreeDefinition"/>.
/// </summary>
/// <param name = "treeDefinition">The <see cref = "TreeDefinition"/>.</param>
/// <returns>The created <see cref = "Tree"/>.</returns>
public virtual Tree CreateTree(TreeDefinition treeDefinition)
{
Ensure.ArgumentNotNull(treeDefinition, "treeDefinition");
return treeDefinition.Build(repo);
}
/// <summary>
/// Inserts a <see cref = "Commit"/> into the object database, referencing an existing <see cref = "Tree"/>.
/// </summary>
/// <param name = "message">The description of why a change was made to the repository.</param>
/// <param name = "author">The <see cref = "Signature" /> of who made the change.</param>
/// <param name = "committer">The <see cref = "Signature" /> of who added the change to the repository.</param>
/// <param name = "tree">The <see cref = "Tree"/> of the <see cref = "Commit"/> to be created.</param>
/// <param name = "parents">The parents of the <see cref = "Commit"/> to be created.</param>
/// <returns>The created <see cref = "Commit"/>.</returns>
public virtual Commit CreateCommit(string message, Signature author, Signature committer, Tree tree, IEnumerable<Commit> parents)
{
return CreateCommit(message, author, committer, tree, parents, null);
}
internal Commit CreateCommit(string message, Signature author, Signature committer, Tree tree, IEnumerable<Commit> parents, string referenceName)
{
Ensure.ArgumentNotNull(message, "message");
Ensure.ArgumentNotNull(author, "author");
Ensure.ArgumentNotNull(committer, "committer");
Ensure.ArgumentNotNull(tree, "tree");
Ensure.ArgumentNotNull(parents, "parents");
string prettifiedMessage = Proxy.git_message_prettify(message);
IEnumerable<ObjectId> parentIds = parents.Select(p => p.Id);
ObjectId commitId = Proxy.git_commit_create(repo.Handle, referenceName, author, committer, prettifiedMessage, tree, parentIds);
return repo.Lookup<Commit>(commitId);
}
}
}
|
