CommandLineBuilder.AppendFileNameIfNotNull Method (ITaskItem)
Appends the command line with the file name of the specified ITaskItem object.
MSBuild is now included in Visual Studio instead of the .NET Framework. You can use MSBuild 12.0 side-by-side with versions previously deployed with the .NET Framework.For more information, see What's New in MSBuild 12.0.
Namespace: Microsoft.Build.Utilities
Assembly: Microsoft.Build.Utilities.Core (in Microsoft.Build.Utilities.Core.dll)
Syntax
'Declaration
Public Sub AppendFileNameIfNotNull ( _
fileItem As ITaskItem _
)
public void AppendFileNameIfNotNull(
ITaskItem fileItem
)
public:
void AppendFileNameIfNotNull(
ITaskItem^ fileItem
)
member AppendFileNameIfNotNull :
fileItem:ITaskItem -> unit
public function AppendFileNameIfNotNull(
fileItem : ITaskItem
)
Parameters
fileItem
Type: Microsoft.Build.Framework.ITaskItemThe task item specification to append to the command line. If it is nulla null reference (Nothing in Visual Basic), then this method has no effect.
Remarks
This method appends the command line with a task item specification, and surrounds task item specification with quotations marks as necessary.
If the command line is not empty, then this method also appends the command line with a space, before the task item specification.
Examples
The following example creates a ToolTask that runs Ilasm.exe. The CommandLineBuilder, ToolLocationHelper, and TaskLoggingHelper classes are used to generate the information needed to run the task.
Imports System
Imports System.Collections
Imports System.Text
Imports Microsoft.Build.Utilities
Imports Microsoft.Build.Framework
Namespace MSBuildTasks
''' <summary>
''' A very simple and incomplete ToolTask to wrap the ILASM.EXE tool.
''' </summary>
Public Class ILAsm
Inherits ToolTask
''' <summary>
''' Parameter bag.
''' </summary>
Protected Friend ReadOnly Property Bag() As Hashtable
Get
Return propertyBag
End Get
End Property
Private propertyBag As New Hashtable()
''' <summary>
''' The Source file that is to be compled (.il)
''' </summary>
Public Property [Source]() As ITaskItem
Get
Return Bag("Source")
End Get
Set(ByVal value As ITaskItem)
Bag("Source") = value
End Set
End Property
''' <summary>
''' Either EXE or DLL indicating the assembly type to be generated
''' </summary>
Public Property TargetType() As String
Get
Return Bag("TargetType")
End Get
Set(ByVal value As String)
Bag("TargetType") = value
End Set
End Property '
Protected Overrides ReadOnly Property ToolName() As String
Get
Return "ILAsm.exe"
End Get
End Property
''' <summary>
''' Use ToolLocationHelper to find ILASM.EXE in the Framework directory
''' </summary>
Protected Overrides Function GenerateFullPathToTool() As String
' Ask ToolLocationHelper to find ILASM.EXE - it will look in the latest framework directory available
Return ToolLocationHelper.GetPathToDotNetFrameworkFile(ToolName, TargetDotNetFrameworkVersion.VersionLatest)
End Function
''' <summary>
''' Construct the command line from the task properties by using the CommandLineBuilder
''' </summary>
Protected Overrides Function GenerateCommandLineCommands() As String
Dim builder As New CommandLineBuilder()
' We don't need the tool's logo information shown
builder.AppendSwitch("/nologo")
Dim targetType As String = Bag("TargetType")
' Be explicit with our switches
If Not (targetType Is Nothing) Then
If [String].Compare(targetType, "DLL", True) = 0 Then
builder.AppendSwitch("/DLL")
ElseIf [String].Compare(targetType, "EXE", True) = 0 Then
builder.AppendSwitch("/EXE")
Else
Log.LogWarning("Invalid TargetType (valid values are DLL and EXE) specified: {0}", targetType)
End If
End If
' Add the filename that we want the tool to process
builder.AppendFileNameIfNotNull(Bag("Source"))
' Log a High importance message stating the file that we are assembling
Log.LogMessage(MessageImportance.High, "Assembling {0}", Bag("Source"))
' We have all of our switches added, return the commandline as a string
Return builder.ToString()
End Function
End Class
End Namespace
using System;
using System.Collections;
using System.Text;
using Microsoft.Build.Utilities;
using Microsoft.Build.Framework;
namespace MSBuildTasks
{
/// <summary>
/// A very simple and incomplete ToolTask to wrap the ILASM.EXE tool.
/// </summary>
public class ILAsm : ToolTask
{
#region Member Data
/// <summary>
/// Gets the collection of parameters used by the task class.
/// </summary>
/// <value>Parameter bag.</value>
protected internal Hashtable Bag
{
get
{
return bag;
}
}
private Hashtable bag = new Hashtable();
#endregion
#region ILAsm Task Properties
/// <summary>
/// The Source file that is to be compled (.il)
/// </summary>
public ITaskItem Source
{
get { return Bag["Source"] as ITaskItem; }
set { Bag["Source"] = value; }
}
/// <summary>
/// Either EXE or DLL indicating the assembly type to be generated
/// </summary>
public string TargetType
{
get { return Bag["TargetType"] as string; }
set { Bag["TargetType"] = value; }
}
#endregion
#region ToolTask Members
protected override string ToolName
{
get { return "ILAsm.exe"; }
}
/// <summary>
/// Use ToolLocationHelper to find ILASM.EXE in the Framework directory
/// </summary>
/// <returns></returns>
protected override string GenerateFullPathToTool()
{
// Ask ToolLocationHelper to find ILASM.EXE - it will look in the latest framework directory available
return ToolLocationHelper.GetPathToDotNetFrameworkFile(ToolName, TargetDotNetFrameworkVersion.VersionLatest);
}
#endregion
#region ILAsm Task Members
/// <summary>
/// Construct the command line from the task properties by using the CommandLineBuilder
/// </summary>
/// <returns></returns>
protected override string GenerateCommandLineCommands()
{
CommandLineBuilder builder = new CommandLineBuilder();
// We don't need the tool's logo information shown
builder.AppendSwitch("/nologo");
string targetType = Bag["TargetType"] as string;
// Be explicit with our switches
if (targetType != null)
{
if (String.Compare(targetType, "DLL", true) == 0)
{
builder.AppendSwitch("/DLL");
}
else if (String.Compare(targetType, "EXE", true) == 0)
{
builder.AppendSwitch("/EXE");
}
else
{
Log.LogWarning("Invalid TargetType (valid values are DLL and EXE) specified: {0}", targetType);
}
}
// Add the filename that we want the tool to process
builder.AppendFileNameIfNotNull(Bag["Source"] as ITaskItem);
// Log a High importance message stating the file that we are assembling
Log.LogMessage(MessageImportance.High, "Assembling {0}", Bag["Source"]);
// We have all of our switches added, return the commandline as a string
return builder.ToString();
}
#endregion
}
}
.NET Framework Security
- Full trust for the immediate caller. This member cannot be used by partially trusted code. For more information, see dd66cd4c-b087-415f-9c3e-94e3a1835f74.