// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
 
using System;
using System.IO;
using System.Linq;
using System.Runtime.InteropServices;
 
namespace Microsoft.AspNetCore.InternalTesting;
 
/// <summary>
/// Skip test if running on Alpine Linux (which uses musl instead of glibc)
/// </summary>
[AttributeUsage(AttributeTargets.Method)]
public class SkipOnAlpineAttribute : Attribute, ITestCondition
{
    public SkipOnAlpineAttribute(string issueUrl = "")
    {
        IssueUrl = issueUrl;
    }
 
    public string IssueUrl { get; }
 
    public bool IsMet { get; } = !IsAlpine;
 
    public string SkipReason => "Test cannot run on Alpine Linux.";
 
    // This logic is borrowed from https://github.com/dotnet/runtime/blob/6a5a78bec9a6e14b4aa52cd5ac558f6cf5c6a211/src/libraries/Common/tests/TestUtilities/System/PlatformDetection.Unix.cs
    private static bool IsAlpine { get; } =
        RuntimeInformation.IsOSPlatform(OSPlatform.Linux) && File.Exists("/etc/os-release") &&
        File.ReadAllLines("/etc/os-release").Any(line =>
            line.StartsWith("ID=", StringComparison.Ordinal) && line.Substring(3).Trim('"', '\'') == "alpine");
}