public string GetLatestVersion(bool ignorePrerelease)
{
var targetVersion = string.Empty;
try
{
targetVersion = _fileProxy.GetLocalFileVersion(_target);
}
catch (FileNotFoundException)
{
targetVersion = string.Empty;
}
if (!IsOlderThanMaxFileAge())
{
ConsoleImpl.WriteDebug("Don't look for new version, as last version is not older than {0} minutes", _maxFileAgeOfPaketExeInMinutes);
return(targetVersion);
}
var latestVersion = _effectiveStrategy.GetLatestVersion(ignorePrerelease);
if (latestVersion == targetVersion)
{
TouchTarget(_target);
}
return(latestVersion);
}
public static void StartPaketBootstrapping(IDownloadStrategy downloadStrategy, DownloadArguments dlArgs, IFileProxy fileProxy)
{
Action <Exception> handleException = exception =>
{
if (!File.Exists(dlArgs.Target))
{
Environment.ExitCode = 1;
}
ConsoleImpl.WriteError(String.Format("{0} ({1})", exception.Message, downloadStrategy.Name));
};
try
{
string versionRequested;
if (!dlArgs.IgnorePrerelease)
{
versionRequested = "prerelease requested";
}
else if (String.IsNullOrWhiteSpace(dlArgs.LatestVersion))
{
versionRequested = "downloading latest stable";
}
else
{
versionRequested = string.Format("version {0} requested", dlArgs.LatestVersion);
}
ConsoleImpl.WriteDebug("Checking Paket version ({0})...", versionRequested);
var localVersion = fileProxy.GetLocalFileVersion(dlArgs.Target);
var specificVersionRequested = true;
var latestVersion = dlArgs.LatestVersion;
if (latestVersion == String.Empty)
{
latestVersion = downloadStrategy.GetLatestVersion(dlArgs.IgnorePrerelease);
specificVersionRequested = false;
}
if (dlArgs.DoSelfUpdate)
{
ConsoleImpl.WriteDebug("Trying self update");
downloadStrategy.SelfUpdate(latestVersion);
}
else
{
var currentSemVer = String.IsNullOrEmpty(localVersion) ? new SemVer() : SemVer.Create(localVersion);
if (currentSemVer.PreRelease != null && dlArgs.IgnorePrerelease)
{
currentSemVer = new SemVer();
}
var latestSemVer = SemVer.Create(latestVersion);
var comparison = currentSemVer.CompareTo(latestSemVer);
if ((comparison > 0 && specificVersionRequested) || comparison < 0)
{
downloadStrategy.DownloadVersion(latestVersion, dlArgs.Target);
ConsoleImpl.WriteDebug("Done.");
}
else
{
ConsoleImpl.WriteDebug("Paket.exe {0} is up to date.", localVersion);
}
}
}
catch (WebException exn)
{
var shouldHandleException = true;
if (!File.Exists(dlArgs.Target))
{
if (downloadStrategy.FallbackStrategy != null)
{
var fallbackStrategy = downloadStrategy.FallbackStrategy;
ConsoleImpl.WriteDebug("'{0}' download failed. If using Mono, you may need to import trusted certificates using the 'mozroots' tool as none are contained by default. Trying fallback download from '{1}'.", downloadStrategy.Name, fallbackStrategy.Name);
StartPaketBootstrapping(fallbackStrategy, dlArgs, fileProxy);
shouldHandleException = !File.Exists(dlArgs.Target);
}
}
if (shouldHandleException)
{
handleException(exn);
}
}
catch (Exception exn)
{
handleException(exn);
}
}
public static void StartPaketBootstrapping(IDownloadStrategy downloadStrategy, DownloadArguments dlArgs, IFileProxy fileProxy)
{
Action<Exception> handleException = exception =>
{
if (!File.Exists(dlArgs.Target))
Environment.ExitCode = 1;
ConsoleImpl.WriteError(String.Format("{0} ({1})", exception.Message, downloadStrategy.Name));
};
try
{
string versionRequested;
if (!dlArgs.IgnorePrerelease)
versionRequested = "prerelease requested";
else if (String.IsNullOrWhiteSpace(dlArgs.LatestVersion))
versionRequested = "downloading latest stable";
else
versionRequested = string.Format("version {0} requested", dlArgs.LatestVersion);
ConsoleImpl.WriteDebug("Checking Paket version ({0})...", versionRequested);
var localVersion = fileProxy.GetLocalFileVersion(dlArgs.Target);
var specificVersionRequested = true;
var latestVersion = dlArgs.LatestVersion;
if (latestVersion == String.Empty)
{
latestVersion = downloadStrategy.GetLatestVersion(dlArgs.IgnorePrerelease);
specificVersionRequested = false;
}
if (dlArgs.DoSelfUpdate)
{
ConsoleImpl.WriteDebug("Trying self update");
downloadStrategy.SelfUpdate(latestVersion);
}
else
{
var currentSemVer = String.IsNullOrEmpty(localVersion) ? new SemVer() : SemVer.Create(localVersion);
if (currentSemVer.PreRelease != null && dlArgs.IgnorePrerelease)
currentSemVer = new SemVer();
var latestSemVer = SemVer.Create(latestVersion);
var comparison = currentSemVer.CompareTo(latestSemVer);
if ((comparison > 0 && specificVersionRequested) || comparison < 0)
{
downloadStrategy.DownloadVersion(latestVersion, dlArgs.Target);
ConsoleImpl.WriteDebug("Done.");
}
else
{
ConsoleImpl.WriteDebug("Paket.exe {0} is up to date.", localVersion);
}
}
}
catch (WebException exn)
{
var shouldHandleException = true;
if (!File.Exists(dlArgs.Target))
{
if (downloadStrategy.FallbackStrategy != null)
{
var fallbackStrategy = downloadStrategy.FallbackStrategy;
ConsoleImpl.WriteDebug("'{0}' download failed. If using Mono, you may need to import trusted certificates using the 'mozroots' tool as none are contained by default. Trying fallback download from '{1}'.", downloadStrategy.Name, fallbackStrategy.Name);
StartPaketBootstrapping(fallbackStrategy, dlArgs, fileProxy);
shouldHandleException = !File.Exists(dlArgs.Target);
}
}
if (shouldHandleException)
handleException(exn);
}
catch (Exception exn)
{
handleException(exn);
}
}
