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using System;
using System.Collections.Generic;
using System.Linq;
using System.Diagnostics;
using System.Globalization;
using LibGit2Sharp.Core;
using LibGit2Sharp.Core.Handles;
namespace LibGit2Sharp
{
/// <summary>
/// A remote repository whose branches are tracked.
/// </summary>
[DebuggerDisplay("{DebuggerDisplay,nq}")]
public class Remote : IEquatable<Remote>, IBelongToARepository
{
private static readonly LambdaEqualityHelper<Remote> equalityHelper =
new LambdaEqualityHelper<Remote>(x => x.Name, x => x.Url);
internal readonly Repository repository;
private readonly RefSpecCollection refSpecs;
/// <summary>
/// Needed for mocking purposes.
/// </summary>
protected Remote()
{ }
private Remote(RemoteSafeHandle handle, Repository repository)
{
this.repository = repository;
Name = Proxy.git_remote_name(handle);
Url = Proxy.git_remote_url(handle);
TagFetchMode = Proxy.git_remote_autotag(handle);
refSpecs = new RefSpecCollection(handle);
}
internal static Remote BuildFromPtr(RemoteSafeHandle handle, Repository repo)
{
var remote = new Remote(handle, repo);
return remote;
}
/// <summary>
/// Gets the alias of this remote repository.
/// </summary>
public virtual string Name { get; private set; }
/// <summary>
/// Gets the url to use to communicate with this remote repository.
/// </summary>
public virtual string Url { get; private set; }
/// <summary>
/// Gets the Tag Fetch Mode of the remote - indicating how tags are fetched.
/// </summary>
public virtual TagFetchMode TagFetchMode { get; private set; }
/// <summary>
/// Gets the list of <see cref="RefSpec"/>s defined for this <see cref="Remote"/>
/// </summary>
public virtual IEnumerable<RefSpec> RefSpecs { get { return refSpecs; } }
/// <summary>
/// Gets the list of <see cref="RefSpec"/>s defined for this <see cref="Remote"/>
/// that are intended to be used during a Fetch operation
/// </summary>
public virtual IEnumerable<RefSpec> FetchRefSpecs
{
get { return refSpecs.Where(r => r.Direction == RefSpecDirection.Fetch); }
}
/// <summary>
/// Gets the list of <see cref="RefSpec"/>s defined for this <see cref="Remote"/>
/// that are intended to be used during a Push operation
/// </summary>
public virtual IEnumerable<RefSpec> PushRefSpecs
{
get { return refSpecs.Where(r => r.Direction == RefSpecDirection.Push); }
}
/// <summary>
/// Transform a reference to its source reference using the <see cref="Remote"/>'s default fetchspec.
/// </summary>
/// <param name="reference">The reference to transform.</param>
/// <returns>The transformed reference.</returns>
internal string FetchSpecTransformToSource(string reference)
{
using (RemoteSafeHandle remoteHandle = Proxy.git_remote_load(repository.Handle, Name, true))
{
GitRefSpecHandle fetchSpecPtr = Proxy.git_remote_get_refspec(remoteHandle, 0);
return Proxy.git_refspec_rtransform(fetchSpecPtr, reference);
}
}
/// <summary>
/// Determines if the proposed remote name is well-formed.
/// </summary>
/// <param name="name">The name to be checked.</param>
/// <returns>true if the name is valid; false otherwise.</returns>
public static bool IsValidName(string name)
{
return Proxy.git_remote_is_valid_name(name);
}
/// <summary>
/// Determines if the proposed remote URL is supported by the library.
/// </summary>
/// <param name="url">The URL to be checked.</param>
/// <returns>true if the url is supported; false otherwise.</returns>
public static bool IsSupportedUrl(string url)
{
return Proxy.git_remote_supported_url(url);
}
/// <summary>
/// Determines whether the specified <see cref="Object"/> is equal to the current <see cref="Remote"/>.
/// </summary>
/// <param name="obj">The <see cref="Object"/> to compare with the current <see cref="Remote"/>.</param>
/// <returns>True if the specified <see cref="Object"/> is equal to the current <see cref="Remote"/>; otherwise, false.</returns>
public override bool Equals(object obj)
{
return Equals(obj as Remote);
}
/// <summary>
/// Determines whether the specified <see cref="Remote"/> is equal to the current <see cref="Remote"/>.
/// </summary>
/// <param name="other">The <see cref="Remote"/> to compare with the current <see cref="Remote"/>.</param>
/// <returns>True if the specified <see cref="Remote"/> is equal to the current <see cref="Remote"/>; otherwise, false.</returns>
public bool Equals(Remote other)
{
return equalityHelper.Equals(this, other);
}
/// <summary>
/// Returns the hash code for this instance.
/// </summary>
/// <returns>A 32-bit signed integer hash code.</returns>
public override int GetHashCode()
{
return equalityHelper.GetHashCode(this);
}
/// <summary>
/// Tests if two <see cref="Remote"/> are equal.
/// </summary>
/// <param name="left">First <see cref="Remote"/> to compare.</param>
/// <param name="right">Second <see cref="Remote"/> to compare.</param>
/// <returns>True if the two objects are equal; false otherwise.</returns>
public static bool operator ==(Remote left, Remote right)
{
return Equals(left, right);
}
/// <summary>
/// Tests if two <see cref="Remote"/> are different.
/// </summary>
/// <param name="left">First <see cref="Remote"/> to compare.</param>
/// <param name="right">Second <see cref="Remote"/> to compare.</param>
/// <returns>True if the two objects are different; false otherwise.</returns>
public static bool operator !=(Remote left, Remote right)
{
return !Equals(left, right);
}
private string DebuggerDisplay
{
get
{
return string.Format(CultureInfo.InvariantCulture,
"{0} => {1}", Name, Url);
}
}
IRepository IBelongToARepository.Repository { get { return repository; } }
}
}
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