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// Copyright (C) 2025 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
using System;
using System.IO;
using System.Linq;
using Microsoft.VisualStudio.Shell;
using Microsoft.VisualStudio.VCProjectEngine;
using Microsoft.Win32;
namespace QtVsTools.Core
{
using MsBuild;
using static Common.Utils;
/// <summary>
/// Summary description for QtVersionManager.
/// </summary>
public static class QtVersionManager
{
private const string VersionsKey = "Versions";
public static string[] GetVersions()
{
var key = Registry.CurrentUser.OpenSubKey(Resources.RegistryPath, false);
if (key == null)
return Array.Empty<string>();
var versionKey = key.OpenSubKey(VersionsKey, false);
return versionKey?.GetSubKeyNames() ?? Array.Empty<string>();
}
public static string GetInstallPath(string version)
{
if (version == "$(DefaultQtVersion)")
version = GetDefaultVersion();
if (version == "$(QTDIR)")
return Environment.GetEnvironmentVariable("QTDIR");
if (string.IsNullOrEmpty(version))
return null;
var key = Registry.CurrentUser.OpenSubKey(Resources.RegistryPath, false);
var versionKey = key?.OpenSubKey(Path.Combine(VersionsKey, version), false);
return versionKey?.GetValue("InstallDir") as string;
}
public static string GetInstallPath(MsBuildProject project)
{
ThreadHelper.ThrowIfNotOnUIThread();
var version = project?.QtVersion;
if (version == "$(DefaultQtVersion)")
version = GetDefaultVersion();
return version == null ? null : GetInstallPath(version);
}
/// <summary>
/// Sanitizes the provided version name by removing leading and trailing whitespaces,
/// and replacing backslashes with underscores.
/// </summary>
/// <param name="name">The version name to be sanitized.</param>
/// <returns>A sanitized version of the input name.</returns>
public static string SanitizeVersionName(string name)
{
return name?.Trim().Replace('\\', '_');
}
public static void SaveVersion(string versionName, string path, bool checkPath = true)
{
var verName = SanitizeVersionName(versionName);
if (string.IsNullOrEmpty(verName))
return;
var dir = string.Empty;
if (verName != "$(QTDIR)") {
DirectoryInfo di;
try {
di = new DirectoryInfo(path);
} catch {
di = null;
}
if (di?.Exists == true) {
dir = di.FullName;
} else if (!checkPath) {
dir = path;
} else {
return;
}
}
using var key = Registry.CurrentUser.CreateSubKey(Resources.RegistryPath);
if (key == null) {
Messages.Print("ERROR: root registry key creation failed");
return;
}
using var versionKey = key.CreateSubKey(Path.Combine(VersionsKey, verName));
if (versionKey == null) {
Messages.Print("ERROR: version registry key creation failed");
} else {
versionKey.SetValue("InstallDir", dir);
}
}
public static bool HasVersion(string versionName)
{
if (string.IsNullOrEmpty(versionName))
return false;
return Registry.CurrentUser.OpenSubKey(Path.Combine(Resources.VersionsRegistryPath,
versionName), false) != null;
}
public static void RemoveVersion(string versionName)
{
var key = Registry.CurrentUser.OpenSubKey(Resources.VersionsRegistryPath, true);
if (key == null)
return;
key.DeleteSubKey(versionName);
key.Close();
}
private static bool IsVersionAvailable(string version)
{
return GetVersions().Any(ver => version == ver);
}
public static void SaveProjectQtVersion(MsBuildProject project, string version)
{
ThreadHelper.ThrowIfNotOnUIThread();
if (!IsVersionAvailable(version) && version != "$(DefaultQtVersion)")
return;
if (project?.VcProject.Configurations is not IVCCollection configurations)
return;
foreach (VCConfiguration3 config in configurations)
config.SetPropertyValue("QtSettings", true, "QtInstall", version);
}
public static string GetDefaultVersion()
{
var defaultVersion = GetDefaultVersionName();
if (defaultVersion == null) {
var key = Registry.CurrentUser.OpenSubKey(Resources.VersionsRegistryPath, false);
if (key != null) {
var versions = GetVersions();
if (versions is { Length: > 0 })
defaultVersion = versions[versions.Length - 1];
if (defaultVersion != null)
SaveDefaultVersion(defaultVersion);
}
if (defaultVersion == null) {
// last fallback... try QTDIR
var qtDir = Environment.GetEnvironmentVariable("QTDIR");
if (string.IsNullOrEmpty(qtDir))
return null;
var name = Path.GetFileName(qtDir);
SaveVersion(name, Path.GetFullPath(qtDir));
if (SaveDefaultVersion(name))
defaultVersion = name;
}
}
return VersionExists(defaultVersion) ? defaultVersion : null;
}
public static string GetDefaultVersionName()
{
try {
return Registry.CurrentUser.OpenSubKey(Resources.VersionsRegistryPath)
?.GetValue("DefaultQtVersion") as string;
} catch (Exception exception) {
Messages.Print("Cannot read the name of the default Qt version.");
exception.Log();
}
return null;
}
public static string GetDefaultVersionInstallPath()
{
try {
var defaultVersion = GetDefaultVersionName();
if (string.IsNullOrEmpty(defaultVersion))
return Path.GetFileName(Environment.GetEnvironmentVariable("QTDIR"));
return Registry.CurrentUser.OpenSubKey(
$"{Resources.VersionsRegistryPath}\\{defaultVersion}")?
.GetValue("InstallDir") as string;
} catch (Exception exception) {
Messages.Print("Cannot read the install path of the default Qt version.");
exception.Log();
}
return null;
}
public static bool SaveDefaultVersion(string version)
{
if (version == "$(DefaultQtVersion)")
return false;
var key = Registry.CurrentUser.CreateSubKey(Resources.VersionsRegistryPath);
if (key == null)
return false;
version = SanitizeVersionName(version);
if (string.IsNullOrEmpty(version))
return false;
key.SetValue("DefaultQtVersion", version);
return true;
}
public static bool VersionExists(string version)
{
if (version == "$(DefaultQtVersion)")
version = GetDefaultVersion();
if (string.IsNullOrEmpty(version))
return false;
var regExp = new System.Text.RegularExpressions.Regex(@"\$\(.*\)");
return regExp.IsMatch(version) || Directory.Exists(GetInstallPath(version));
}
public static void MoveRegisteredQtVersions()
{
try {
if (Registry.CurrentUser.OpenSubKey(Resources.ObsoleteRegistryPath, true)
is not { } key)
return;
const string valueName = "Copied";
if (key.GetValue(valueName) != null)
return;
// TODO v3.2.0: Use MoveRegistryKeys and delete source keys
CopyRegistryKeys(Resources.ObsoleteRegistryPath, Resources.RegistryPath);
MoveRegistryKeys(Resources.RegistryPath + "\\Qt5VS2017",
Resources.SettingsRegistryPath);
key.SetValue(valueName, "");
} catch (Exception exception) {
exception.Log();
}
}
}
}
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