/// <summary>

/// returns unity installations under given root folders

/// </summary>

public static class GetUnityInstallations

{

static Dictionary<string, string> platformNames = new Dictionary<string, string> { { "androidplayer", "Android" }, { "windowsstandalonesupport", "Win" }, { "linuxstandalonesupport", "Linux" }, { "LinuxStandalone", "Linux" }, { "OSXStandalone", "OSX" }, { "webglsupport", "WebGL" }, { "metrosupport", "UWP" }, { "iossupport", "iOS" } };

// returns unity installations

public static List<UnityInstallation> Scan()

{

// get list from settings

var rootFolders = Properties.Settings.Default.rootFolders;

// unityversion, exe_path

List<UnityInstallation> results = new List<UnityInstallation>();

// iterate all folders under root folders

foreach (string rootFolder in rootFolders)

{

// if folder exists

if (String.IsNullOrWhiteSpace(rootFolder) == true || Directory.Exists(rootFolder) == false) continue;

// get all folders

var directories = Directory.GetDirectories(rootFolder);

// parse all folders under root, and search for unity editor files

for (int i = 0, length = directories.Length; i < length; i++)

{

var editorFolder = Path.Combine(directories[i], "Editor");

if (Directory.Exists(editorFolder) == false)

{

// OPTIONAL scan for source code build output

editorFolder = Path.Combine(directories[i], "build/WindowsEditor/x64/Release");

if (Directory.Exists(editorFolder) == false)

{

// no unity editor root folder found, skip this folder

continue;

}

}

// check if uninstaller is there, sure sign of unity

var uninstallExe = Path.Combine(editorFolder, "Uninstall.exe");

var haveUninstaller = File.Exists(uninstallExe);

var exePath = Path.Combine(editorFolder, "Unity.exe");

if (File.Exists(exePath) == false) continue;

// get full version number from uninstaller (or try exe, if no uninstaller)

var version = Tools.GetFileVersionData(haveUninstaller ? uninstallExe : exePath);

// we got new version to add

var dataFolder = Path.Combine(editorFolder, "Data");

DateTime? installDate = Tools.GetLastModifiedTime(dataFolder);

UnityInstallation unity = new UnityInstallation();

unity.Version = version;

unity.VersionCode = Tools.VersionAsLong(version); // cached version code

unity.Path = exePath;

unity.Installed = installDate;

unity.IsPreferred = (version == MainWindow.preferredVersion);

unity.ProjectCount = GetProjectCountForUnityVersion(version);

if (Tools.IsAlpha(version))

{

unity.ReleaseType = "Alpha";

}

else if (Tools.IsBeta(version))

{

unity.ReleaseType = "Beta";

}

else

if (Tools.IsLTS(version))

{

unity.ReleaseType = "LTS";

}

else

{

unity.ReleaseType = ""; // cannot be null for UnitysFilter to work properly

}

// get platforms, NOTE if this is slow, do it later, or skip for commandline

var platforms = GetPlatforms(dataFolder);

// this is for editor tab, show list of all platforms in cell

if (platforms != null) unity.PlatformsCombined = string.Join(", ", platforms);

// this is for keeping array of platforms for platform combobox

if (platforms != null) unity.Platforms = platforms;

// add to list, if not there yet NOTE should notify that there are 2 same versions..? this might happen with preview builds..

if (results.Contains(unity) == true)

{

Console.WriteLine("Warning: 2 same versions found for " + version);

continue;

}

results.Add(unity);

} // got folders

} // all root folders

// sort by version

results.Sort((s1, s2) => s2.VersionCode.CompareTo(s1.VersionCode));

return results;

} // scan()

public static bool HasUnityInstallations(string path)

{

var directories = Directory.GetDirectories(path);

// loop folders inside root

for (int i = 0, length = directories.Length; i < length; i++)

{

var editorFolder = Path.Combine(directories[i], "Editor");

if (Directory.Exists(editorFolder) == false) continue;

var editorExe = Path.Combine(editorFolder, "Unity.exe");

if (File.Exists(editorExe) == false) continue;

// have atleast 1 installation

return true;

}

return false;

}

// scans unity installation folder for installed platforms

static string[] GetPlatforms(string dataFolder)

{

// get all folders inside

var platformFolder = Path.Combine(dataFolder, "PlaybackEngines");

if (Directory.Exists(platformFolder) == false) return null;

//var directories = Directory.GetDirectories(platformFolder);

var directories = new List<string>(Directory.GetDirectories(platformFolder));

//for (int i = 0; i < directories.Length; i++)

var count = directories.Count;

for (int i = 0; i < count; i++)

{

var foldername = Path.GetFileName(directories[i]).ToLower();

//Console.WriteLine("PlaybackEngines: " + foldername);

// check if have better name in dictionary

if (platformNames.ContainsKey(foldername))

{

directories[i] = platformNames[foldername];

// add also 64bit desktop versions for that platform, NOTE dont add android, ios or webgl

if (foldername.IndexOf("alone") > -1) directories.Add(platformNames[foldername] + "64");

}

else // use raw

{

directories[i] = foldername;

}

//Console.WriteLine(i + " : " + foldername + " > " + directories[i]);

}

return directories.ToArray();

}

static int GetProjectCountForUnityVersion(string version)

{

if (MainWindow.projectsSource == null) return 0;

//Console.WriteLine("xxx "+(MainWindow.projectsSource==null));

int count = 0;

// count projects using this exact version

for (int i = 0, len = MainWindow.projectsSource.Count; i < len; i++)

{

if (MainWindow.projectsSource[i].Version == version) count++;

}

return count;

}

} // class