Files
2025-05-18 13:04:45 +08:00

142 lines
4.0 KiB
C#

// Copyright Epic Games, Inc. All Rights Reserved.
using System;
using System.Collections.Generic;
using System.Threading.Tasks;
using System.Xml;
using EpicGames.Core;
using Microsoft.Extensions.Logging;
namespace AutomationTool.Tasks
{
/// <summary>
/// Parameters for <see cref="RandomDataTask"/>.
/// </summary>
public class RandomDataTaskParameters
{
/// <summary>
/// Seed for the data generation
/// </summary>
[TaskParameter(Optional = true)]
public int Seed { get; set; } = -1;
/// <summary>
/// The size of each file.
/// </summary>
[TaskParameter(Optional = true)]
public int Size { get; set; } = 1024;
/// <summary>
/// Number of files to write.
/// </summary>
[TaskParameter(Optional = true)]
public int Count { get; set; } = 50;
/// <summary>
/// Whether to generate different data for each output file.
/// </summary>
[TaskParameter(Optional = true)]
public bool Different { get; set; } = true;
/// <summary>
/// Output directory
/// </summary>
[TaskParameter(Optional = true)]
public string OutputDir { get; set; }
/// <summary>
/// Optional filter to be applied to the list of input files.
/// </summary>
[TaskParameter(Optional = true)]
public string Tag { get; set; }
}
/// <summary>
/// Creates files containing random data in the specified output directory. Used for generating test data for the temp storage system.
/// </summary>
[TaskElement("RandomData", typeof(RandomDataTaskParameters))]
public class RandomDataTask : BgTaskImpl
{
readonly RandomDataTaskParameters _parameters;
/// <summary>
/// Constructor
/// </summary>
/// <param name="parameters">Parameters for this task</param>
public RandomDataTask(RandomDataTaskParameters parameters)
{
_parameters = parameters;
}
/// <summary>
/// ExecuteAsync the task.
/// </summary>
/// <param name="job">Information about the current job</param>
/// <param name="buildProducts">Set of build products produced by this node.</param>
/// <param name="tagNameToFileSet">Mapping from tag names to the set of files they include</param>
public override async Task ExecuteAsync(JobContext job, HashSet<FileReference> buildProducts, Dictionary<string, HashSet<FileReference>> tagNameToFileSet)
{
DirectoryReference outputDir = ResolveDirectory(_parameters.OutputDir);
DirectoryReference.CreateDirectory(outputDir);
Random random;
if (_parameters.Seed >= 0)
{
random = new Random(_parameters.Seed);
}
else
{
random = new Random();
}
byte[] buffer = Array.Empty<byte>();
for (int idx = 0; idx < _parameters.Count; idx++)
{
if (idx == 0 || _parameters.Different)
{
buffer = new byte[_parameters.Size];
random.NextBytes(buffer);
}
FileReference file = FileReference.Combine(outputDir, $"test-{_parameters.Size}-{idx}.dat");
await FileReference.WriteAllBytesAsync(file, buffer);
buildProducts.Add(file);
}
Logger.LogInformation("Created {NumFiles:n0} files of {Size:n0} bytes in {OutputDir} (Different={Different})", _parameters.Count, _parameters.Size, outputDir, _parameters.Different);
// Apply the optional output tag to them
foreach (string tagName in FindTagNamesFromList(_parameters.Tag))
{
FindOrAddTagSet(tagNameToFileSet, tagName).UnionWith(buildProducts);
}
}
/// <summary>
/// Output this task out to an XML writer.
/// </summary>
public override void Write(XmlWriter writer)
{
Write(writer, _parameters);
}
/// <summary>
/// Find all the tags which are used as inputs to this task
/// </summary>
/// <returns>The tag names which are read by this task</returns>
public override IEnumerable<string> FindConsumedTagNames()
{
yield break;
}
/// <summary>
/// Find all the tags which are modified by this task
/// </summary>
/// <returns>The tag names which are modified by this task</returns>
public override IEnumerable<string> FindProducedTagNames()
{
return FindTagNamesFromList(_parameters.Tag);
}
}
}