public void Execute(CommandContext context)
{
var args = context.Args;
var config = context.Config;
if(args.Length < 2)
{
Console.WriteLine("Expected 2 arguments, e.g. lu use .net 3.5");
return;
}
string componentName = args[0];
string versionName = args[1];
var component = config.Components.SingleOrDefault(x => x.Name == componentName);
if (component == null)
{
Console.WriteLine(@"WARNING: No component could be found with the name ""{0}""", componentName);
return;
}
var version = component.Versions.SingleOrDefault(x => x.Name == versionName);
if (version == null)
{
Console.WriteLine(@"WARNING: No version called ""{0}"" exists in component ""{1}""", versionName, componentName);
return;
}
SaveOriginalPathInCommandLineSession(context);
string newPath = PathMonkeyer.SetComponentVersion(component, version);
SetNewPathInCommandLineSession(context, newPath);
Console.WriteLine(@"INFO: Using path ""{0}"" for component ""{1}"", version ""{2}""", version.Path, component.Name, version.Name);
}
private void ExecuteCommand(ICommand command)
{
var commandArgs = args.Skip(1).ToArray();
var context = new CommandContext(config, commandArgs);
command.Execute(context);
WriteContentToFileExecutedByLauncherBatchFile(context.GetContentForFileExecutedByLauncherBatchFile());
}
/// <summary>
/// Sets an environment variable storing path before any changes have been made by LineUp
/// </summary>
/// <param name="context"></param>
private static void SaveOriginalPathInCommandLineSession(CommandContext context)
{
bool originalPathAlreadySaved = !string.IsNullOrWhiteSpace(Environment.GetEnvironmentVariable(EnvironmentVariables.OriginalPath));
if (!originalPathAlreadySaved)
{
var originalPath = Environment.GetEnvironmentVariable("PATH", EnvironmentVariableTarget.Process) ?? "";
string command = string.Format("set {0}={1}", EnvironmentVariables.OriginalPath, originalPath);
context.AddLinesToFileExecutedByLauncherBatchFile(new[] { command });
}
}
public void Execute(CommandContext context)
{
string currentPathValue = Environment.GetEnvironmentVariable(EnvironmentVariables.Path,
EnvironmentVariableTarget.Process);
string originalPathValue = Environment.GetEnvironmentVariable(EnvironmentVariables.OriginalPath,
EnvironmentVariableTarget.Process);
bool revertRequired = !string.IsNullOrWhiteSpace(originalPathValue)
&& !new PathEnvironmentVariable(originalPathValue).IsEquivalentTo(currentPathValue);
if (revertRequired)
{
RevertToOriginalPathInCommandLineSession(context, originalPathValue);
Console.WriteLine(Resources.RevertCommand_RevertingToOriginalPath);
}
else
{
Console.WriteLine(Resources.RevertCommand_RevertNotRequired);
}
}
private static void RevertToOriginalPathInCommandLineSession(CommandContext context, string originalPath)
{
string restorePath = string.Format("set {0}={1}", EnvironmentVariables.Path, originalPath);
string removeOriginal = string.Format("set {0}=", EnvironmentVariables.OriginalPath);
context.AddLinesToFileExecutedByLauncherBatchFile(new[] {restorePath, removeOriginal});
}
private static void SetNewPathInCommandLineSession(CommandContext context, string newPath)
{
string command = string.Format("set path={0}", newPath);
context.AddLinesToFileExecutedByLauncherBatchFile(new[] { command });
}