Firstborn/Library/PackageCache/com.unity.ide.visualstudio@.../Editor/Discovery.cs

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2023-03-28 13:24:16 -04:00
/*---------------------------------------------------------------------------------------------
* Copyright (c) Unity Technologies.
* Copyright (c) Microsoft Corporation. All rights reserved.
* Licensed under the MIT License. See License.txt in the project root for license information.
*--------------------------------------------------------------------------------------------*/
using System;
using System.IO;
using System.Collections.Generic;
using System.Diagnostics;
using System.Text.RegularExpressions;
using System.Linq;
using UnityEngine;
namespace Microsoft.Unity.VisualStudio.Editor
{
internal static class Discovery
{
internal const string ManagedWorkload = "Microsoft.VisualStudio.Workload.ManagedGame";
internal static string _vsWherePath;
public static void FindVSWhere()
{
_vsWherePath = FileUtility.GetPackageAssetFullPath("Editor", "VSWhere", "vswhere.exe");
}
public static IEnumerable<IVisualStudioInstallation> GetVisualStudioInstallations()
{
if (VisualStudioEditor.IsWindows)
{
foreach (var installation in QueryVsWhere())
yield return installation;
}
if (VisualStudioEditor.IsOSX)
{
var candidates = Directory.EnumerateDirectories("/Applications", "*.app");
foreach (var candidate in candidates)
{
if (TryDiscoverInstallation(candidate, out var installation))
yield return installation;
}
}
}
private static bool IsCandidateForDiscovery(string path)
{
if (File.Exists(path) && VisualStudioEditor.IsWindows && Regex.IsMatch(path, "devenv.exe$", RegexOptions.IgnoreCase))
return true;
if (Directory.Exists(path) && VisualStudioEditor.IsOSX && Regex.IsMatch(path, "Visual\\s?Studio(?!.*Code.*).*.app$", RegexOptions.IgnoreCase))
return true;
return false;
}
public static bool TryDiscoverInstallation(string editorPath, out IVisualStudioInstallation installation)
{
installation = null;
if (string.IsNullOrEmpty(editorPath))
return false;
if (!IsCandidateForDiscovery(editorPath))
return false;
// On windows we use the executable directly, so we can query extra information
var fvi = editorPath;
// On Mac we use the .app folder, so we need to access to main assembly
if (VisualStudioEditor.IsOSX)
{
fvi = Path.Combine(editorPath, "Contents/Resources/lib/monodevelop/bin/VisualStudio.exe");
if (!File.Exists(fvi))
fvi = Path.Combine(editorPath, "Contents/MonoBundle/VisualStudio.exe");
if (!File.Exists(fvi))
fvi = Path.Combine(editorPath, "Contents/MonoBundle/VisualStudio.dll");
}
if (!File.Exists(fvi))
return false;
// VS preview are not using the isPrerelease flag so far
// On Windows FileDescription contains "Preview", but not on Mac
var vi = FileVersionInfo.GetVersionInfo(fvi);
var version = new Version(vi.ProductVersion);
var isPrerelease = vi.IsPreRelease || string.Concat(editorPath, "/" + vi.FileDescription).ToLower().Contains("preview");
installation = new VisualStudioInstallation()
{
IsPrerelease = isPrerelease,
Name = $"{vi.FileDescription}{(isPrerelease && VisualStudioEditor.IsOSX ? " Preview" : string.Empty)} [{version.ToString(3)}]",
Path = editorPath,
Version = version
};
return true;
}
#region VsWhere Json Schema
#pragma warning disable CS0649
[Serializable]
internal class VsWhereResult
{
public VsWhereEntry[] entries;
public static VsWhereResult FromJson(string json)
{
return JsonUtility.FromJson<VsWhereResult>("{ \"" + nameof(VsWhereResult.entries) + "\": " + json + " }");
}
public IEnumerable<VisualStudioInstallation> ToVisualStudioInstallations()
{
foreach (var entry in entries)
{
yield return new VisualStudioInstallation()
{
Name = $"{entry.displayName} [{entry.catalog.productDisplayVersion}]",
Path = entry.productPath,
IsPrerelease = entry.isPrerelease,
Version = Version.Parse(entry.catalog.buildVersion)
};
}
}
}
[Serializable]
internal class VsWhereEntry
{
public string displayName;
public bool isPrerelease;
public string productPath;
public VsWhereCatalog catalog;
}
[Serializable]
internal class VsWhereCatalog
{
public string productDisplayVersion; // non parseable like "16.3.0 Preview 3.0"
public string buildVersion;
}
#pragma warning restore CS3021
#endregion
private static IEnumerable<VisualStudioInstallation> QueryVsWhere()
{
var progpath = _vsWherePath;
if (string.IsNullOrWhiteSpace(progpath))
return Enumerable.Empty<VisualStudioInstallation>();
var process = new Process
{
StartInfo = new ProcessStartInfo
{
FileName = progpath,
Arguments = "-prerelease -format json -utf8",
UseShellExecute = false,
CreateNoWindow = true,
RedirectStandardOutput = true,
RedirectStandardError = true,
}
};
using (process)
{
var json = string.Empty;
process.OutputDataReceived += (o, e) => json += e.Data;
process.Start();
process.BeginOutputReadLine();
process.WaitForExit();
var result = VsWhereResult.FromJson(json);
return result.ToVisualStudioInstallations();
}
}
}
}