public VersionInformation GetVersionInfo(string name)
{
if (name == "$(DefaultQtVersion)")
{
name = GetDefaultVersion();
}
if (name == null)
{
return(null);
}
if (versionCache == null)
{
versionCache = new Hashtable();
}
var vi = versionCache[name] as VersionInformation;
if (vi == null)
{
var qtdir = GetInstallPath(name);
versionCache[name] = vi = VersionInformation.Get(qtdir);
if (vi != null)
{
vi.name = name;
}
}
return(vi);
}
/// <summary>
/// Check if all Qt versions are valid and readable.
/// </summary>
/// Also sets the default Qt version to the newest version, if needed.
/// <param name="errorMessage"></param>
/// <returns>true, if we found an invalid version</returns>
public bool HasInvalidVersions(out string errorMessage)
{
var validVersions = new List <QtVersion>();
var invalidVersions = new List <string>();
foreach (var v in GetVersions())
{
if (v == "$(DefaultQtVersion)")
{
continue;
}
try {
var vi = VersionInformation.Get(GetInstallPath(v));
var qtVersion = new QtVersion();
qtVersion.name = v;
qtVersion.vi = vi;
validVersions.Add(qtVersion);
} catch (Exception) {
invalidVersions.Add(v);
}
}
if (invalidVersions.Count > 0)
{
errorMessage = "These Qt version are inaccessible:\n";
foreach (var invalidVersion in invalidVersions)
{
errorMessage += invalidVersion + " in " + GetInstallPath(invalidVersion) + "\n";
}
errorMessage += "Make sure that you have read access to all files in your Qt directories.";
// Is the default Qt version invalid?
var isDefaultQtVersionInvalid = false;
var defaultQtVersionName = GetDefaultVersion();
if (string.IsNullOrEmpty(defaultQtVersionName))
{
isDefaultQtVersionInvalid = true;
}
else
{
foreach (var name in invalidVersions)
{
if (name == defaultQtVersionName)
{
isDefaultQtVersionInvalid = true;
break;
}
}
}
// find the newest valid Qt version that can be used as default version
if (isDefaultQtVersionInvalid && validVersions.Count > 0)
{
QtVersion defaultQtVersion = null;
foreach (var v in validVersions)
{
if (defaultQtVersion == null)
{
defaultQtVersion = v;
continue;
}
if (defaultQtVersion.vi.qtMajor < v.vi.qtMajor ||
(defaultQtVersion.vi.qtMajor == v.vi.qtMajor && (defaultQtVersion.vi.qtMinor < v.vi.qtMinor ||
(defaultQtVersion.vi.qtMinor == v.vi.qtMinor && defaultQtVersion.vi.qtPatch < v.vi.qtPatch))))
{
defaultQtVersion = v;
}
}
if (defaultQtVersion != null)
{
SaveDefaultVersion(defaultQtVersion.name);
}
}
return(true);
}
errorMessage = null;
return(false);
}