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using System;
using System.IO;
using LibGit2Sharp.Core;
namespace LibGit2Sharp
{
/// <summary>
/// Stores the binary content of a tracked file.
/// </summary>
public class Blob : GitObject
{
private readonly ILazy<Int64> lazySize;
private readonly ILazy<bool> lazyIsBinary;
/// <summary>
/// Needed for mocking purposes.
/// </summary>
protected Blob()
{ }
internal Blob(Repository repo, ObjectId id)
: base(repo, id)
{
lazySize = GitObjectLazyGroup.Singleton(repo, id, Proxy.git_blob_rawsize);
lazyIsBinary = GitObjectLazyGroup.Singleton(repo, id, Proxy.git_blob_is_binary);
}
/// <summary>
/// Gets the size in bytes of the raw content of a blob.
/// <para> Please note that this would load entire blob content in the memory to compute the Size.
/// In order to read blob size from header, Repository.ObjectMetadata.RetrieveObjectMetadata(Blob.Id).Size
/// can be used.
/// </para>
/// </summary>
public virtual long Size { get { return lazySize.Value; } }
/// <summary>
/// Determine if the blob content is most certainly binary or not.
/// </summary>
public virtual bool IsBinary { get { return lazyIsBinary.Value; } }
/// <summary>
/// Gets the blob content in a <see cref="Stream"/>.
/// </summary>
public virtual Stream GetContentStream()
{
return Proxy.git_blob_rawcontent_stream(repo.Handle, Id, Size);
}
/// <summary>
/// Gets the blob content in a <see cref="Stream"/> as it would be
/// checked out to the working directory.
/// <param name="filteringOptions">Parameter controlling content filtering behavior</param>
/// </summary>
public virtual Stream GetContentStream(FilteringOptions filteringOptions)
{
Ensure.ArgumentNotNull(filteringOptions, "filteringOptions");
return Proxy.git_blob_filtered_content_stream(repo.Handle, Id, filteringOptions.HintPath, false);
}
}
}
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