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

109 lines
3.1 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;
namespace AutomationTool.Tasks
{
/// <summary>
/// Parameters for a Docker task
/// </summary>
public class DockerTaskParameters
{
/// <summary>
/// Docker command line arguments
/// </summary>
[TaskParameter]
public string Arguments { get; set; }
/// <summary>
/// Environment variables to set
/// </summary>
[TaskParameter(Optional = true)]
public string Environment { get; set; }
/// <summary>
/// File to read environment variables from
/// </summary>
[TaskParameter(Optional = true)]
public string EnvironmentFile { get; set; }
/// <summary>
/// Base directory for running the command
/// </summary>
[TaskParameter(Optional = true)]
public string WorkingDir { get; set; }
}
/// <summary>
/// Spawns Docker and waits for it to complete.
/// </summary>
[TaskElement("Docker", typeof(DockerTaskParameters))]
public class DockerTask : SpawnTaskBase
{
/// <summary>
/// Parameters for this task
/// </summary>
readonly DockerTaskParameters _parameters;
/// <summary>
/// Construct a Docker task
/// </summary>
/// <param name="parameters">Parameters for the task</param>
public DockerTask(DockerTaskParameters 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)
{
await ExecuteAsync(GetDockerExecutablePath(), _parameters.Arguments, envVars: ParseEnvVars(_parameters.Environment, _parameters.EnvironmentFile), workingDir: _parameters.WorkingDir);
}
/// <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()
{
yield break;
}
/// <summary>
/// Resolve path to Docker executable by using the optional env var "UE_DOCKER_EXEC_PATH"
/// Will default to "docker" if not set. Allows supporting alternative Docker implementations such as Podman.
/// </summary>
/// <returns>Path to Docker executable</returns>
public static string GetDockerExecutablePath()
{
return Environment.GetEnvironmentVariable("UE_DOCKER_EXEC_PATH") ?? "docker";
}
}
}