[xbuild] Fix warnings.
[mono.git] / mcs / class / Microsoft.Build.Engine / Microsoft.Build.BuildEngine / Engine.cs
1 //
2 // Engine.cs: Main engine of XBuild.
3 //
4 // Author:
5 //   Marek Sieradzki (marek.sieradzki@gmail.com)
6 // 
7 // (C) 2005 Marek Sieradzki
8 //
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:
16 //
17 // The above copyright notice and this permission notice shall be
18 // included in all copies or substantial portions of the Software.
19 //
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.
27
28 #if NET_2_0
29
30 using System;
31 using System.Collections;
32 using System.Collections.Generic;
33 using System.IO;
34 using System.Linq;
35 using Microsoft.Build.Framework;
36 using Microsoft.Build.Utilities;
37 using Mono.XBuild.Utilities;
38
39 namespace Microsoft.Build.BuildEngine {
40         public class Engine {
41                 
42                 string                  binPath;
43                 bool                    buildEnabled;
44                 Dictionary<string, TaskDatabase> defaultTasksTableByToolsVersion;
45                 const string            defaultTasksProjectName = "Microsoft.Common.tasks";
46                 EventSource             eventSource;
47                 bool                    buildStarted;
48                 //ToolsetDefinitionLocations toolsetLocations;
49                 BuildPropertyGroup      global_properties;
50                 //IDictionary           importedProjects;
51                 List <ILogger>          loggers;
52                 //bool                  onlyLogCriticalEvents;
53                 Dictionary <string, Project>    projects;
54                 string defaultToolsVersion;
55
56                 // the key here represents the project+target+global_properties set
57                 Dictionary <string, ITaskItem[]> builtTargetsOutputByName;
58                 Stack<Project> currentlyBuildingProjectsStack;
59
60                 static Engine           globalEngine;
61                 static Version          version;
62
63                 static Engine ()
64                 {
65                         version = new Version ("0.1");
66                 }
67                 
68                 public Engine ()
69                         : this (ToolLocationHelper.GetPathToDotNetFramework (TargetDotNetFrameworkVersion.Version20))
70                 {
71                 }
72
73                 public Engine (ToolsetDefinitionLocations locations)
74                         : this (ToolLocationHelper.GetPathToDotNetFramework (TargetDotNetFrameworkVersion.Version20))
75                 {
76                         //toolsetLocations = locations;
77                 }
78                 
79                 public Engine (BuildPropertyGroup globalProperties)
80                         : this (ToolLocationHelper.GetPathToDotNetFramework (TargetDotNetFrameworkVersion.Version20))
81                 {
82                         this.global_properties = globalProperties;
83                 }
84
85                 public Engine (BuildPropertyGroup globalProperties, ToolsetDefinitionLocations locations)
86                         : this (ToolLocationHelper.GetPathToDotNetFramework (TargetDotNetFrameworkVersion.Version20))
87                 {
88                         this.global_properties = globalProperties;
89                         //toolsetLocations = locations;
90                 }
91
92                 // engine should be invoked with path where binary files are
93                 // to find microsoft.build.tasks
94                 public Engine (string binPath)
95                 {
96                         this.binPath = binPath;
97                         this.buildEnabled = true;
98                         this.projects = new Dictionary <string, Project> ();
99                         this.eventSource = new EventSource ();
100                         this.loggers = new List <ILogger> ();
101                         this.buildStarted = false;
102                         this.global_properties = new BuildPropertyGroup ();
103                         this.builtTargetsOutputByName = new Dictionary<string, ITaskItem[]> ();
104                         this.currentlyBuildingProjectsStack = new Stack<Project> ();
105                         this.Toolsets = new ToolsetCollection ();
106                         LoadDefaultToolsets ();
107                         defaultTasksTableByToolsVersion = new Dictionary<string, TaskDatabase> ();
108                 }
109
110                 //FIXME: should be loaded from config file
111                 void LoadDefaultToolsets ()
112                 {
113                         Toolsets.Add (new Toolset ("2.0",
114                                                 ToolLocationHelper.GetPathToDotNetFramework (TargetDotNetFrameworkVersion.Version20)));
115                         Toolsets.Add (new Toolset ("3.0",
116                                                 ToolLocationHelper.GetPathToDotNetFramework (TargetDotNetFrameworkVersion.Version30)));
117                         Toolsets.Add (new Toolset ("3.5",
118                                                 ToolLocationHelper.GetPathToDotNetFramework (TargetDotNetFrameworkVersion.Version35)));
119 #if NET_4_0
120                         Toolsets.Add (new Toolset ("4.0",
121                                                 ToolLocationHelper.GetPathToDotNetFramework (TargetDotNetFrameworkVersion.Version40)));
122 #endif
123                 }
124                 
125                 [MonoTODO]
126                 public bool BuildProject (Project project)
127                 {
128                         if (project == null)
129                                 throw new ArgumentException ("project");
130                         builtTargetsOutputByName.Clear ();
131                         return project.Build ();
132                 }
133                 
134                 [MonoTODO]
135                 public bool BuildProject (Project project, string targetName)
136                 {
137                         if (project == null)
138                                 throw new ArgumentException ("project");
139                         if (targetName == null)
140                                 return false;
141
142                         return BuildProject (project, new string[] { targetName}, null, BuildSettings.None);
143                 }
144                 
145                 [MonoTODO]
146                 public bool BuildProject (Project project, string[] targetNames)
147                 {
148                         return BuildProject (project, targetNames, null, BuildSettings.None);
149                 }
150
151                 [MonoTODO]
152                 public bool BuildProject (Project project,
153                                           string[] targetNames,
154                                           IDictionary targetOutputs)
155                 {
156                         return BuildProject (project, targetNames, targetOutputs, BuildSettings.None);
157                 }
158                 
159                 public bool BuildProject (Project project,
160                                           string[] targetNames,
161                                           IDictionary targetOutputs,
162                                           BuildSettings buildFlags)
163                 {
164                         if (project == null)
165                                 throw new ArgumentException ("project");
166                         if (targetNames == null)
167                                 return false;
168
169                         if ((buildFlags & BuildSettings.DoNotResetPreviouslyBuiltTargets) != BuildSettings.DoNotResetPreviouslyBuiltTargets)
170                                 builtTargetsOutputByName.Clear ();
171
172                         if (defaultToolsVersion != null)
173                                 // it has been explicitly set, xbuild does this..
174                                 project.ToolsVersion = defaultToolsVersion;
175                         return project.Build (targetNames, targetOutputs, buildFlags);
176                 }
177
178                 [MonoTODO]
179                 public bool BuildProjectFile (string projectFile)
180                 {
181                         return BuildProjectFile (projectFile, new string [0]);
182                 }
183                 
184                 [MonoTODO]
185                 public bool BuildProjectFile (string projectFile,
186                                               string targetName)
187                 {
188                         return BuildProjectFile (projectFile,
189                                                  targetName == null ? new string [0] : new string [] {targetName});
190                 }
191                 
192                 [MonoTODO]
193                 public bool BuildProjectFile (string projectFile,
194                                               string[] targetNames)
195                 {
196                         return BuildProjectFile (projectFile, targetNames, null);
197                 }
198                 
199                 [MonoTODO]
200                 public bool BuildProjectFile (string projectFile,
201                                               string[] targetNames,
202                                               BuildPropertyGroup globalProperties)
203                 {
204                         return BuildProjectFile (projectFile, targetNames, globalProperties, null, BuildSettings.None);
205                 }
206                 
207                 [MonoTODO]
208                 public bool BuildProjectFile (string projectFile,
209                                               string[] targetNames,
210                                               BuildPropertyGroup globalProperties,
211                                               IDictionary targetOutputs)
212                 {
213                         return BuildProjectFile (projectFile, targetNames, globalProperties, targetOutputs, BuildSettings.None);
214                 }
215                 
216                 public bool BuildProjectFile (string projectFile,
217                                               string[] targetNames,
218                                               BuildPropertyGroup globalProperties,
219                                               IDictionary targetOutputs,
220                                               BuildSettings buildFlags)
221                 {
222                         return BuildProjectFile (projectFile, targetNames, globalProperties, targetOutputs, buildFlags, null);
223                 }
224                         
225                 //FIXME: add a test for null @toolsVersion
226                 public bool BuildProjectFile (string projectFile,
227                                               string[] targetNames,
228                                               BuildPropertyGroup globalProperties,
229                                               IDictionary targetOutputs,
230                                               BuildSettings buildFlags, string toolsVersion)
231                 {
232                         if ((buildFlags & BuildSettings.DoNotResetPreviouslyBuiltTargets) != BuildSettings.DoNotResetPreviouslyBuiltTargets)
233                                 builtTargetsOutputByName.Clear ();
234
235                         Project project;
236
237                         bool newProject = false;
238                         if (!projects.TryGetValue (projectFile, out project)) {
239                                 project = CreateNewProject ();
240                                 newProject = true;
241                         }
242
243                         BuildPropertyGroup engine_old_grp = null;
244                         BuildPropertyGroup project_old_grp = null;
245                         if (globalProperties != null) {
246                                 engine_old_grp = GlobalProperties.Clone (true);
247                                 project_old_grp = project.GlobalProperties.Clone (true);
248
249                                 // Override project's global properties with the
250                                 // ones explicitlcur_y specified here
251                                 foreach (BuildProperty bp in globalProperties)
252                                         project.GlobalProperties.AddProperty (bp);
253
254                                 if (!newProject)
255                                         project.NeedToReevaluate ();
256                         }
257
258                         if (newProject)
259                                 project.Load (projectFile);
260
261                         try {
262                                 string oldProjectToolsVersion = project.ToolsVersion;
263                                 if (String.IsNullOrEmpty (toolsVersion) && defaultToolsVersion != null)
264                                         // no tv specified, let the project inherit it from the
265                                         // engine. 'defaultToolsVersion' will be effective only
266                                         // it has been overridden. Otherwise, the project's own
267                                         // tv will be used.
268                                         project.ToolsVersion = defaultToolsVersion;
269                                 else
270                                         project.ToolsVersion = toolsVersion;
271
272                                 try {
273                                         return project.Build (targetNames, targetOutputs, buildFlags);
274                                 } finally {
275                                         project.ToolsVersion = oldProjectToolsVersion;
276                                 }
277                         } finally {
278                                 if (globalProperties != null) {
279                                         GlobalProperties = engine_old_grp;
280                                         project.GlobalProperties = project_old_grp;
281                                 }
282                         }
283                 }
284
285                 void CheckBinPath ()
286                 {
287                         if (BinPath == null) {
288                                 throw new InvalidOperationException ("Before a project can be instantiated, " +
289                                         "Engine.BinPath must be set to the location on disk where MSBuild " + 
290                                         "is installed. This is used to evaluate $(MSBuildBinPath).");
291                         }
292                 }
293
294                 public Project CreateNewProject ()
295                 {
296                         return new Project (this);
297                 }
298
299                 public Project GetLoadedProject (string projectFullFileName)
300                 {
301                         if (projectFullFileName == null)
302                                 throw new ArgumentNullException ("projectFullFileName");
303                         
304                         Project project;
305                         projects.TryGetValue (projectFullFileName, out project);
306
307                         return project;
308                 }
309
310                 internal void RemoveLoadedProject (Project p)
311                 {
312                         if (!String.IsNullOrEmpty (p.FullFileName)) {
313                                 ClearBuiltTargetsForProject (p);
314                                 projects.Remove (p.FullFileName);
315                         }
316                 }
317
318                 internal void AddLoadedProject (Project p)
319                 {
320                         if (p.FullFileName != String.Empty)
321                                 projects.Add (p.FullFileName, p);
322                 }
323         
324                 public void UnloadProject (Project project)
325                 {
326                         if (project == null)
327                                 throw new ArgumentNullException ("project");
328
329                         if (project.ParentEngine != this)
330                                 throw new InvalidOperationException ("The \"Project\" object specified does not belong to the correct \"Engine\" object.");
331                         
332                         project.CheckUnloaded ();
333                         
334                         RemoveLoadedProject (project);
335                         
336                         project.Unload ();
337                 }
338
339                 public void UnloadAllProjects ()
340                 {
341                         IList<Project> values = new List<Project> (projects.Values);
342                         foreach (Project p in values)
343                                 UnloadProject (p);
344                 }
345
346                 [MonoTODO]
347                 public void RegisterLogger (ILogger logger)
348                 {
349                         if (logger == null)
350                                 throw new ArgumentNullException ("logger");
351                         
352                         logger.Initialize (eventSource);
353                         loggers.Add (logger);
354                 }
355                 
356                 [MonoTODO]
357                 public void UnregisterAllLoggers ()
358                 {
359                         // FIXME: check if build succeeded
360                         // FIXME: it shouldn't be here
361                         if (buildStarted)
362                                 LogBuildFinished (true);
363                         foreach (ILogger i in loggers) {
364                                 i.Shutdown ();
365                         }
366                         loggers.Clear ();
367                 }
368
369                 internal void StartProjectBuild (Project project, string [] target_names)
370                 {
371                         if (!buildStarted) {
372                                 LogBuildStarted ();
373                                 buildStarted = true;
374                         }
375
376                         if (currentlyBuildingProjectsStack.Count == 0 ||
377                                 String.Compare (currentlyBuildingProjectsStack.Peek ().FullFileName, project.FullFileName) != 0)
378                                         LogProjectStarted (project, target_names);
379
380                         currentlyBuildingProjectsStack.Push (project);
381                 }
382
383                 internal void EndProjectBuild (Project project, bool succeeded)
384                 {
385                         if (!buildStarted)
386                                 throw new Exception ("build isnt started currently");
387
388                         Project top_project = currentlyBuildingProjectsStack.Pop ();
389
390                         if (String.Compare (project.FullFileName, top_project.FullFileName) != 0)
391                                 throw new Exception (String.Format (
392                                                         "INTERNAL ERROR: Project finishing is not the same as the one on top " +
393                                                         "of the stack. Project: {0} Top of stack: {1}",
394                                                         project.FullFileName, top_project.FullFileName));
395
396                         if (currentlyBuildingProjectsStack.Count == 0 ||
397                                 String.Compare (top_project.FullFileName, currentlyBuildingProjectsStack.Peek ().FullFileName) != 0)
398                                 LogProjectFinished (top_project, succeeded);
399
400                         if (currentlyBuildingProjectsStack.Count == 0) {
401                                 LogBuildFinished (succeeded);
402                                 buildStarted = false;
403                         }
404                 }
405
406                 internal void ClearBuiltTargetsForProject (Project project)
407                 {
408                         string project_key = project.GetKeyForTarget (String.Empty, false);
409                         var to_remove_keys = BuiltTargetsOutputByName.Keys.Where (key => key.StartsWith (project_key)).ToList ();
410                         foreach (string to_remove_key in to_remove_keys)
411                                 BuiltTargetsOutputByName.Remove (to_remove_key);
412                 }
413
414                 void LogProjectStarted (Project project, string [] target_names)
415                 {
416                         string targets;
417                         if (target_names == null || target_names.Length == 0)
418                                 targets = String.Empty;
419                         else
420                                 targets = String.Join (";", target_names);
421
422                         ProjectStartedEventArgs psea = new ProjectStartedEventArgs ("Project started.", null, project.FullFileName, targets,
423                                         project.EvaluatedPropertiesAsDictionaryEntries, project.EvaluatedItemsByNameAsDictionaryEntries);
424
425                         eventSource.FireProjectStarted (this, psea);
426                 }
427
428                 void LogProjectFinished (Project project, bool succeeded)
429                 {
430                         ProjectFinishedEventArgs pfea;
431                         pfea = new ProjectFinishedEventArgs ("Project started.", null, project.FullFileName, succeeded);
432                         eventSource.FireProjectFinished (this, pfea);
433                 }
434
435                 void LogBuildStarted ()
436                 {
437                         BuildStartedEventArgs bsea;
438                         bsea = new BuildStartedEventArgs ("Build started.", null);
439                         eventSource.FireBuildStarted (this, bsea);
440                 }
441                 
442                 void LogBuildFinished (bool succeeded)
443                 {
444                         BuildFinishedEventArgs bfea;
445                         bfea = new BuildFinishedEventArgs ("Build finished.", null, succeeded);
446                         eventSource.FireBuildFinished (this, bfea);
447                 }
448
449                 internal TaskDatabase GetDefaultTasks (string toolsVersion)
450                 {
451                         TaskDatabase db;
452                         if (defaultTasksTableByToolsVersion.TryGetValue (toolsVersion, out db))
453                                 return db;
454
455                         var toolset = Toolsets [toolsVersion];
456                         if (toolset == null)
457                                 throw new UnknownToolsVersionException (toolsVersion);
458
459                         string toolsPath = toolset.ToolsPath;
460                         string tasksFile = Path.Combine (toolsPath, defaultTasksProjectName);
461                         this.LogMessage (MessageImportance.Low, "Loading default tasks for ToolsVersion: {0} from {1}", toolsVersion, tasksFile);
462
463                         // set a empty taskdb here, because the project loading the tasks
464                         // file will try to get the default task db
465                         defaultTasksTableByToolsVersion [toolsVersion] = new TaskDatabase ();
466
467                         db = defaultTasksTableByToolsVersion [toolsVersion] = RegisterDefaultTasks (tasksFile);
468
469                         return db;
470                 }
471                 
472                 TaskDatabase RegisterDefaultTasks (string tasksFile)
473                 {
474                         Project defaultTasksProject = CreateNewProject ();
475                         TaskDatabase db;
476                         
477                         if (File.Exists (tasksFile)) {
478                                 defaultTasksProject.Load (tasksFile);
479                                 db = defaultTasksProject.TaskDatabase;
480                         } else {
481                                 this.LogWarning ("Default tasks file {0} not found, ignoring.", tasksFile);
482                                 db = new TaskDatabase ();
483                         }
484
485                         return db;
486                 }
487
488                 public string BinPath {
489                         get { return binPath; }
490                         set { binPath = value; }
491                 }
492
493                 public bool BuildEnabled {
494                         get { return buildEnabled; }
495                         set { buildEnabled = value; }
496                 }
497
498                 public static Version Version {
499                         get { return version; }
500                 }
501
502                 public static Engine GlobalEngine {
503                         get {
504                                 if (globalEngine == null)
505                                         globalEngine = new Engine ();
506                                 return globalEngine;
507                         }
508                 }
509
510                 public BuildPropertyGroup GlobalProperties {
511                         get { return global_properties; }
512                         set { global_properties = value; }
513                 }
514                 
515                 public ToolsetCollection Toolsets {
516                         get; private set;
517                 }
518
519                 public string DefaultToolsVersion {
520                         get {
521                                 // This is used as the fall back version if the
522                                 // project can't find a version to use
523                                 // Hard-coded to 2.0, so it allows even vs2005 projects
524                                 // to build correctly, as they won't have a ToolsVersion
525                                 // set!
526                                 return String.IsNullOrEmpty (defaultToolsVersion)
527                                                 ? "2.0"
528                                                 : defaultToolsVersion;
529                         }
530                         set {
531                                 if (Toolsets [value] == null)
532                                         throw new UnknownToolsVersionException (value);
533                                 defaultToolsVersion = value;
534                         }
535                 }
536                 
537                 public bool IsBuilding {
538                         get { return buildStarted; }
539                 }
540                 
541                 public bool OnlyLogCriticalEvents {
542                         get { return eventSource.OnlyLogCriticalEvents; }
543                         set { eventSource.OnlyLogCriticalEvents = value; }
544                 }
545                 
546                 internal EventSource EventSource {
547                         get { return eventSource; }
548                 }
549                 
550                 internal Dictionary<string, ITaskItem[]> BuiltTargetsOutputByName {
551                         get { return builtTargetsOutputByName; }
552                 }
553         }
554 }
555
556 #endif