173 lines
7.2 KiB
C#
173 lines
7.2 KiB
C#
//
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// BuildTaskFactory.cs
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//
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// Author:
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// Atsushi Enomoto (atsushi@xamarin.com)
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//
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// Copyright (C) 2013 Xamarin Inc. (http://www.xamarin.com)
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//
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// Permission is hereby granted, free of charge, to any person obtaining
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// a copy of this software and associated documentation files (the
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// "Software"), to deal in the Software without restriction, including
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// without limitation the rights to use, copy, modify, merge, publish,
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// distribute, sublicense, and/or sell copies of the Software, and to
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// permit persons to whom the Software is furnished to do so, subject to
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// the following conditions:
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//
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// The above copyright notice and this permission notice shall be
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// included in all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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//
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using System;
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using System.Collections.Generic;
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using System.Linq;
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using Microsoft.Build.Framework;
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using System.Reflection;
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using Microsoft.Build.Execution;
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using Microsoft.Build.Evaluation;
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using Microsoft.Build.Construction;
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using System.IO;
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using System.Xml;
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namespace Microsoft.Build.Internal
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{
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class BuildTaskDatabase
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{
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const string default_tasks_file = "Microsoft.Common.tasks";
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static readonly Dictionary<string,BuildTaskDatabase> default_factory = new Dictionary<string, BuildTaskDatabase> ();
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public static BuildTaskDatabase GetDefaultTaskDatabase (Toolset toolset)
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{
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if (toolset == null)
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throw new ArgumentNullException ("toolset");
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BuildTaskDatabase defaults;
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if (!default_factory.TryGetValue (toolset.ToolsVersion, out defaults)) {
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defaults = new BuildTaskDatabase (toolset);
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}
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return defaults;
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}
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// for 'default' tasks.
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BuildTaskDatabase (Toolset toolset)
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{
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ProjectRootElement root;
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using (var xml = XmlReader.Create (Path.Combine (toolset.ToolsPath, default_tasks_file)))
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root = ProjectRootElement.Create (xml);
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LoadUsingTasks (null, root.UsingTasks);
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}
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public BuildTaskDatabase (IBuildEngine engine, ProjectInstance projectInstance)
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{
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this.engine = engine;
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LoadUsingTasks (projectInstance, projectInstance.UsingTasks);
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}
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internal class TaskDescription
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{
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public TaskAssembly TaskAssembly { get; set; }
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public string Name { get; set; }
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public Type TaskFactoryType { get; set; }
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public Type TaskType { get; set; }
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public IDictionary<string, TaskPropertyInfo> TaskFactoryParameters { get; set; }
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public string TaskBody { get; set; }
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public bool IsMatch (string name)
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{
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int ridx = Name.LastIndexOf ('.');
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int tidx = name.IndexOf ('.');
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return string.Equals (Name, name, StringComparison.OrdinalIgnoreCase) ||
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tidx < 0 && ridx > 0 && string.Equals (Name.Substring (ridx + 1), name, StringComparison.OrdinalIgnoreCase);
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}
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}
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internal class TaskAssembly
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{
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public string AssemblyName { get; set; }
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public string AssemblyFile { get; set; }
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public Assembly LoadedAssembly { get; set; }
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}
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readonly IBuildEngine engine;
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readonly List<TaskAssembly> assemblies = new List<TaskAssembly> ();
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readonly List<TaskDescription> task_descs = new List<TaskDescription> ();
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public List<TaskDescription> Tasks {
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get { return task_descs; }
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}
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// FIXME: my guess is the tasks does not have to be loaded entirely but only requested tasks must be loaded at invocation time.
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void LoadUsingTasks (ProjectInstance projectInstance, IEnumerable<ProjectUsingTaskElement> usingTasks)
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{
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Func<string,bool> cond = s => projectInstance != null ? projectInstance.EvaluateCondition (s) : Convert.ToBoolean (s);
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Func<string,string> expand = s => projectInstance != null ? projectInstance.ExpandString (s) : s;
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foreach (var ut in usingTasks) {
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var aName = expand (ut.AssemblyName);
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var aFile = expand (ut.AssemblyFile);
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if (string.IsNullOrEmpty (aName) && string.IsNullOrEmpty (aFile)) {
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var errorNoAssembly = string.Format ("Task '{0}' does not specify either of AssemblyName or AssemblyFile.", ut.TaskName);
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engine.LogWarningEvent (new BuildWarningEventArgs (null, null, projectInstance.FullPath, ut.Location.Line, ut.Location.Column, 0, 0, errorNoAssembly, null, null));
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continue;
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}
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var ta = assemblies.FirstOrDefault (a => a.AssemblyFile.Equals (aFile, StringComparison.OrdinalIgnoreCase) || a.AssemblyName.Equals (aName, StringComparison.OrdinalIgnoreCase));
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if (ta == null) {
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var path = Path.GetDirectoryName (string.IsNullOrEmpty (ut.Location.File) ? projectInstance.FullPath : ut.Location.File);
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ta = new TaskAssembly () { AssemblyName = aName, AssemblyFile = aFile };
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try {
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ta.LoadedAssembly = !string.IsNullOrEmpty (ta.AssemblyName) ? Assembly.Load (ta.AssemblyName) : Assembly.LoadFile (Path.Combine (path, ta.AssemblyFile));
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} catch {
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var errorNotLoaded = string.Format ("For task '{0}' Specified assembly '{1}' was not found", ut.TaskName, string.IsNullOrEmpty (ta.AssemblyName) ? Path.Combine (path, ta.AssemblyFile) : ta.AssemblyName);
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engine.LogWarningEvent (new BuildWarningEventArgs (null, null, projectInstance.FullPath, ut.Location.Line, ut.Location.Column, 0, 0, errorNotLoaded, null, null));
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continue;
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}
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assemblies.Add (ta);
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}
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var pg = ut.ParameterGroup == null ? null : ut.ParameterGroup.Parameters.Select (p => new TaskPropertyInfo (p.Name, Type.GetType (p.ParameterType), cond (p.Output), cond (p.Required)))
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.ToDictionary (p => p.Name);
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Type type = null;
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string error = null;
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TaskDescription task = new TaskDescription () {
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TaskAssembly = ta,
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Name = ut.TaskName,
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TaskFactoryParameters = pg,
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TaskBody = ut.TaskBody != null && cond (ut.TaskBody.Condition) ? ut.TaskBody.TaskBody : null,
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};
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if (string.IsNullOrEmpty (ut.TaskFactory)) {
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type = LoadTypeFrom (ta.LoadedAssembly, ut.TaskName, ut.TaskName);
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if (type == null)
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error = string.Format ("For task '{0}' Specified type '{1}' was not found in assembly '{2}'", ut.TaskName, ut.TaskName, ta.LoadedAssembly.FullName);
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else
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task.TaskType = type;
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} else {
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type = LoadTypeFrom (ta.LoadedAssembly, ut.TaskName, ut.TaskFactory);
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if (type == null)
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error = string.Format ("For task '{0}' Specified factory type '{1}' was not found in assembly '{2}'", ut.TaskName, ut.TaskFactory, ta.LoadedAssembly.FullName);
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else
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task.TaskFactoryType = type;
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}
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if (error != null)
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engine.LogWarningEvent (new BuildWarningEventArgs (null, null, projectInstance.FullPath, ut.Location.Line, ut.Location.Column, 0, 0, error, null, null));
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else
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task_descs.Add (task);
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}
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}
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Type LoadTypeFrom (Assembly a, string taskName, string possiblyShortTypeName)
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{
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Type type = a.GetType (possiblyShortTypeName, false, true);
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if (possiblyShortTypeName.IndexOf ('.') < 0)
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type = a.GetTypes ().FirstOrDefault (t => t.Name == possiblyShortTypeName);
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return type;
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}
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}
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}
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