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using System;
using System.Diagnostics;
using System.Globalization;
using LibGit2Sharp.Core;
namespace LibGit2Sharp
{
/// <summary>
/// Holds the calculated status of a particular file at a particular instant.
/// </summary>
[DebuggerDisplay("{DebuggerDisplay,nq}")]
public class StatusEntry : IEquatable<StatusEntry>
{
private readonly string filePath;
private readonly FileStatus state;
private readonly RenameDetails headToIndexRenameDetails;
private readonly RenameDetails indexToWorkDirRenameDetails;
private static readonly LambdaEqualityHelper<StatusEntry> equalityHelper =
new LambdaEqualityHelper<StatusEntry>(x => x.FilePath, x => x.State, x => x.HeadToIndexRenameDetails, x => x.IndexToWorkDirRenameDetails);
/// <summary>
/// Needed for mocking purposes.
/// </summary>
protected StatusEntry()
{ }
internal StatusEntry(string filePath, FileStatus state, RenameDetails headToIndexRenameDetails = null, RenameDetails indexToWorkDirRenameDetails = null)
{
this.filePath = filePath;
this.state = state;
this.headToIndexRenameDetails = headToIndexRenameDetails;
this.indexToWorkDirRenameDetails = indexToWorkDirRenameDetails;
}
/// <summary>
/// Gets the <see cref="FileStatus"/> of the file.
/// </summary>
public virtual FileStatus State
{
get { return state; }
}
/// <summary>
/// Gets the relative new filepath to the working directory of the file.
/// </summary>
public virtual string FilePath
{
get { return filePath; }
}
/// <summary>
/// Gets the rename details from the HEAD to the Index, if this <see cref="FileStatus"/> contains <see cref="FileStatus.RenamedInIndex"/>
/// </summary>
public virtual RenameDetails HeadToIndexRenameDetails
{
get { return headToIndexRenameDetails; }
}
/// <summary>
/// Gets the rename details from the Index to the working directory, if this <see cref="FileStatus"/> contains <see cref="FileStatus.RenamedInWorkdir"/>
/// </summary>
public virtual RenameDetails IndexToWorkDirRenameDetails
{
get { return indexToWorkDirRenameDetails; }
}
/// <summary>
/// Determines whether the specified <see cref="Object"/> is equal to the current <see cref="StatusEntry"/>.
/// </summary>
/// <param name="obj">The <see cref="Object"/> to compare with the current <see cref="StatusEntry"/>.</param>
/// <returns>True if the specified <see cref="Object"/> is equal to the current <see cref="StatusEntry"/>; otherwise, false.</returns>
public override bool Equals(object obj)
{
return Equals(obj as StatusEntry);
}
/// <summary>
/// Determines whether the specified <see cref="StatusEntry"/> is equal to the current <see cref="StatusEntry"/>.
/// </summary>
/// <param name="other">The <see cref="StatusEntry"/> to compare with the current <see cref="StatusEntry"/>.</param>
/// <returns>True if the specified <see cref="StatusEntry"/> is equal to the current <see cref="StatusEntry"/>; otherwise, false.</returns>
public bool Equals(StatusEntry 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="StatusEntry"/> are equal.
/// </summary>
/// <param name="left">First <see cref="StatusEntry"/> to compare.</param>
/// <param name="right">Second <see cref="StatusEntry"/> to compare.</param>
/// <returns>True if the two objects are equal; false otherwise.</returns>
public static bool operator ==(StatusEntry left, StatusEntry right)
{
return Equals(left, right);
}
/// <summary>
/// Tests if two <see cref="StatusEntry"/> are different.
/// </summary>
/// <param name="left">First <see cref="StatusEntry"/> to compare.</param>
/// <param name="right">Second <see cref="StatusEntry"/> to compare.</param>
/// <returns>True if the two objects are different; false otherwise.</returns>
public static bool operator !=(StatusEntry left, StatusEntry right)
{
return !Equals(left, right);
}
private string DebuggerDisplay
{
get
{
if ((State & FileStatus.RenamedInIndex) == FileStatus.RenamedInIndex ||
(State & FileStatus.RenamedInWorkdir) == FileStatus.RenamedInWorkdir)
{
string oldFilePath = ((State & FileStatus.RenamedInIndex) != 0)
? HeadToIndexRenameDetails.OldFilePath
: IndexToWorkDirRenameDetails.OldFilePath;
return string.Format(CultureInfo.InvariantCulture, "{0}: {1} -> {2}", State, oldFilePath, FilePath);
}
return string.Format(CultureInfo.InvariantCulture, "{0}: {1}", State, FilePath);
}
}
}
}