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using System;
using System.Collections.Generic;
using System.IO;
namespace LibGit2Sharp
{
/// <summary>
/// The archiving method needs to be passed an inheritor of this class, which will then be used
/// to provide low-level archiving facilities (tar, zip, ...).
/// <para>
/// <see cref="ObjectDatabase.Archive(LibGit2Sharp.Commit,LibGit2Sharp.ArchiverBase)"/>
/// </para>
/// </summary>
public abstract class ArchiverBase
{
/// <summary>
/// Override this method to perform operations before the archiving of each entry of the tree takes place.
/// </summary>
/// <param name="tree">The tree that will be archived</param>
/// <param name="oid">The ObjectId of the commit being archived, or null if there is no commit.</param>
/// <param name="modificationTime">The modification time that will be used for the files in the archive.</param>
public virtual void BeforeArchiving(Tree tree, ObjectId oid, DateTimeOffset modificationTime)
{ }
/// <summary>
/// Override this method to perform operations after the archiving of each entry of the tree took place.
/// </summary>
/// <param name="tree">The tree that was archived</param>
/// <param name="oid">The ObjectId of the commit being archived, or null if there is no commit.</param>
/// <param name="modificationTime">The modification time that was used for the files in the archive.</param>
public virtual void AfterArchiving(Tree tree, ObjectId oid, DateTimeOffset modificationTime)
{ }
internal void OrchestrateArchiving(Tree tree, ObjectId oid, DateTimeOffset modificationTime)
{
BeforeArchiving(tree, oid, modificationTime);
ArchiveTree(tree, "", modificationTime);
AfterArchiving(tree, oid, modificationTime);
}
private void ArchiveTree(IEnumerable<TreeEntry> tree, string path, DateTimeOffset modificationTime)
{
foreach (var entry in tree)
{
AddTreeEntry(Path.Combine(path, entry.Name), entry, modificationTime);
// Recurse if we have subtrees
if (entry.Mode == Mode.Directory)
{
ArchiveTree((Tree)entry.Target, Path.Combine(path, entry.Name), modificationTime);
}
}
}
/// <summary>
/// Implements the archiving of a TreeEntry in a given format.
/// </summary>
/// <param name="path">The path of the entry in the archive.</param>
/// <param name="entry">The entry to archive.</param>
/// <param name="modificationTime">The datetime the entry was last modified.</param>
protected abstract void AddTreeEntry(string path, TreeEntry entry, DateTimeOffset modificationTime);
}
}
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