2 // UsingTask.cs: Represents a single UsingTask element in an MSBuild project.
5 // Marek Sieradzki (marek.sieradzki@gmail.com)
7 // (C) 2005 Marek Sieradzki
9 // Permission is hereby granted, free of charge, to any person obtaining
10 // a copy of this software and associated documentation files (the
11 // "Software"), to deal in the Software without restriction, including
12 // without limitation the rights to use, copy, modify, merge, publish,
13 // distribute, sublicense, and/or sell copies of the Software, and to
14 // permit persons to whom the Software is furnished to do so, subject to
15 // the following conditions:
17 // The above copyright notice and this permission notice shall be
18 // included in all copies or substantial portions of the Software.
20 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
21 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
22 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
23 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
24 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
25 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
26 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
33 using Mono.XBuild.Framework;
35 namespace Microsoft.Build.BuildEngine {
36 public class UsingTask {
38 ImportedProject importedProject;
40 XmlElement usingTaskElement;
42 internal UsingTask (XmlElement usingTaskElement, Project project, ImportedProject importedProject)
44 this.project = project;
45 this.importedProject = importedProject;
46 this.usingTaskElement = usingTaskElement;
49 throw new ArgumentNullException ("project");
50 if (usingTaskElement == null)
51 throw new ArgumentNullException ("usingTaskElement");
52 if (AssemblyName != null && AssemblyFile != null)
53 throw new InvalidProjectFileException ("A <UsingTask> element must contain either the \"AssemblyName\" attribute or the \"AssemblyFile\" attribute (but not both). ");
54 if (TaskName == String.Empty)
55 throw new InvalidProjectFileException ("The required attribute \"TaskName\" is missing from element <UsingTask>. ");
58 internal void Evaluate ()
60 if (AssemblyName == null && AssemblyFile == null)
61 throw new InvalidProjectFileException ("A <UsingTask> element must contain either the \"AssemblyName\" attribute or the \"AssemblyFile\" attribute (but not both). ");
63 if (ConditionParser.ParseAndEvaluate (Condition, project))
64 project.TaskDatabase.RegisterUsingTask (this);
67 internal void Load (TaskDatabase db)
69 AssemblyLoadInfo loadInfo = null;
71 if (AssemblyName != null) {
72 loadInfo = new AssemblyLoadInfo (AssemblyName, TaskName);
73 } else if (AssemblyFile != null) {
74 Expression exp = new Expression ();
76 exp.Parse (AssemblyFile, false);
77 string filename = (string) exp.ConvertTo (project, typeof (string));
79 if (Path.IsPathRooted (filename) == false) {
81 if (importedProject != null) {
82 ffn = Path.GetDirectoryName (importedProject.FullFileName);
83 } else if (project.FullFileName != String.Empty) {
84 ffn = Path.GetDirectoryName (project.FullFileName);
86 ffn = Environment.CurrentDirectory;
88 filename = Path.Combine (ffn, filename);
90 loadInfo = new AssemblyLoadInfo (LoadInfoType.AssemblyFilename, filename, null, null, null, null, TaskName);
93 db.RegisterTask (TaskName, loadInfo);
96 public bool IsImported {
97 get { return importedProject != null; }
100 public string AssemblyFile {
102 string assemblyFile = usingTaskElement.GetAttribute ("AssemblyFile");
103 return (assemblyFile == String.Empty) ? null : assemblyFile;
107 public string AssemblyName {
109 string assemblyName = usingTaskElement.GetAttribute ("AssemblyName");
110 return (assemblyName == String.Empty) ? null : assemblyName;
114 public string Condition {
116 string condition = usingTaskElement.GetAttribute ("Condition");
117 return (condition == String.Empty) ? null : condition;
121 public string TaskName {
122 get { return usingTaskElement.GetAttribute ("TaskName"); }