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1 /*
2  * Copyright (C) 2007 The Android Open Source Project
3  *
4  * Licensed under the Eclipse Public License, Version 1.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *      http://www.eclipse.org/org/documents/epl-v10.php
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 package com.android.ide.eclipse.adt.internal.build.builders;
18 
19 import com.android.SdkConstants;
20 import com.android.ide.eclipse.adt.AdtConstants;
21 import com.android.ide.eclipse.adt.AdtPlugin;
22 import com.android.ide.eclipse.adt.internal.build.Messages;
23 import com.android.ide.eclipse.adt.internal.preferences.AdtPrefs;
24 import com.android.ide.eclipse.adt.internal.preferences.AdtPrefs.BuildVerbosity;
25 import com.android.ide.eclipse.adt.internal.project.BaseProjectHelper;
26 import com.android.ide.eclipse.adt.internal.project.ProjectHelper;
27 import com.android.utils.Pair;
28 
29 import org.eclipse.core.resources.IFolder;
30 import org.eclipse.core.resources.IMarker;
31 import org.eclipse.core.resources.IProject;
32 import org.eclipse.core.resources.IResource;
33 import org.eclipse.core.resources.IWorkspaceRoot;
34 import org.eclipse.core.resources.IncrementalProjectBuilder;
35 import org.eclipse.core.resources.ResourcesPlugin;
36 import org.eclipse.core.runtime.CoreException;
37 import org.eclipse.core.runtime.IPath;
38 import org.eclipse.core.runtime.IProgressMonitor;
39 import org.eclipse.core.runtime.IStatus;
40 import org.eclipse.core.runtime.Status;
41 import org.eclipse.core.runtime.SubProgressMonitor;
42 import org.eclipse.core.runtime.jobs.Job;
43 import org.eclipse.jdt.core.IClasspathEntry;
44 import org.eclipse.jdt.core.IJavaProject;
45 import org.eclipse.jdt.core.JavaCore;
46 
47 import java.util.List;
48 import java.util.Map;
49 
50 /**
51  * Resource manager builder whose only purpose is to refresh the resource folder
52  * so that the other builder use an up to date version.
53  */
54 public class ResourceManagerBuilder extends BaseBuilder {
55 
56     public static final String ID = "com.android.ide.eclipse.adt.ResourceManagerBuilder"; //$NON-NLS-1$
57 
ResourceManagerBuilder()58     public ResourceManagerBuilder() {
59         super();
60     }
61 
62     @Override
clean(IProgressMonitor monitor)63     protected void clean(IProgressMonitor monitor) throws CoreException {
64         super.clean(monitor);
65 
66         // Get the project.
67         IProject project = getProject();
68 
69         // Clear the project of the generic markers
70         removeMarkersFromContainer(project, AdtConstants.MARKER_ADT);
71     }
72 
73     // build() returns a list of project from which this project depends for future compilation.
74     @SuppressWarnings("unchecked")
75     @Override
build(int kind, Map args, IProgressMonitor monitor)76     protected IProject[] build(int kind, Map args, IProgressMonitor monitor)
77             throws CoreException {
78         // Get the project.
79         final IProject project = getProject();
80         IJavaProject javaProject = JavaCore.create(project);
81 
82         // Clear the project of the generic markers
83         removeMarkersFromContainer(project, AdtConstants.MARKER_ADT);
84 
85         // check for existing target marker, in which case we abort.
86         // (this means: no SDK, no target, or unresolvable target.)
87         try {
88             abortOnBadSetup(javaProject, null);
89         } catch (AbortBuildException e) {
90             return null;
91         }
92 
93         // Check the compiler compliance level, displaying the error message
94         // since this is the first builder.
95         Pair<Integer, String> result = ProjectHelper.checkCompilerCompliance(project);
96         String errorMessage = null;
97         switch (result.getFirst().intValue()) {
98             case ProjectHelper.COMPILER_COMPLIANCE_LEVEL:
99                 errorMessage = Messages.Requires_Compiler_Compliance_s;
100                 break;
101             case ProjectHelper.COMPILER_COMPLIANCE_SOURCE:
102                 errorMessage = Messages.Requires_Source_Compatibility_s;
103                 break;
104             case ProjectHelper.COMPILER_COMPLIANCE_CODEGEN_TARGET:
105                 errorMessage = Messages.Requires_Class_Compatibility_s;
106                 break;
107         }
108 
109         if (errorMessage != null) {
110             errorMessage = String.format(errorMessage,
111                     result.getSecond() == null ? "(no value)" : result.getSecond());
112 
113             markProject(AdtConstants.MARKER_ADT, errorMessage, IMarker.SEVERITY_ERROR);
114             AdtPlugin.printErrorToConsole(project, errorMessage);
115 
116             return null;
117         }
118 
119         // Check that the SDK directory has been setup.
120         String osSdkFolder = AdtPlugin.getOsSdkFolder();
121 
122         if (osSdkFolder == null || osSdkFolder.length() == 0) {
123             AdtPlugin.printErrorToConsole(project, Messages.No_SDK_Setup_Error);
124             markProject(AdtConstants.MARKER_ADT, Messages.No_SDK_Setup_Error,
125                     IMarker.SEVERITY_ERROR);
126 
127             return null;
128         }
129 
130         // check the 'gen' source folder is present
131         boolean hasGenSrcFolder = false; // whether the project has a 'gen' source folder setup
132 
133         IClasspathEntry[] classpaths = javaProject.readRawClasspath();
134         if (classpaths != null) {
135             for (IClasspathEntry e : classpaths) {
136                 if (e.getEntryKind() == IClasspathEntry.CPE_SOURCE) {
137                     IPath path = e.getPath();
138                     if (path.segmentCount() == 2 &&
139                             path.segment(1).equals(SdkConstants.FD_GEN_SOURCES)) {
140                         hasGenSrcFolder = true;
141                         break;
142                     }
143                 }
144             }
145         }
146 
147         boolean genFolderPresent = false; // whether the gen folder actually exists
148         IResource resource = project.findMember(SdkConstants.FD_GEN_SOURCES);
149         genFolderPresent = resource != null && resource.exists();
150 
151         if (hasGenSrcFolder == false && genFolderPresent) {
152             // No source folder setup for 'gen' in the project, but there's already a
153             // 'gen' resource (file or folder).
154             String message;
155             if (resource.getType() == IResource.FOLDER) {
156                 // folder exists already! This is an error. If the folder had been created
157                 // by the NewProjectWizard, it'd be a source folder.
158                 message = String.format("%1$s already exists but is not a source folder. Convert to a source folder or rename it.",
159                         resource.getFullPath().toString());
160             } else {
161                 // resource exists but is not a folder.
162                 message = String.format(
163                         "Resource %1$s is in the way. ADT needs a source folder called 'gen' to work. Rename or delete resource.",
164                         resource.getFullPath().toString());
165             }
166 
167             AdtPlugin.printErrorToConsole(project, message);
168             markProject(AdtConstants.MARKER_ADT, message, IMarker.SEVERITY_ERROR);
169 
170             return null;
171         } else if (hasGenSrcFolder == false || genFolderPresent == false) {
172             // either there is no 'gen' source folder in the project (older SDK),
173             // or the folder does not exist (was deleted, or was a fresh svn checkout maybe.)
174 
175             // In case we are migrating from an older SDK, we go through the current source
176             // folders and delete the generated Java files.
177             List<IPath> sourceFolders = BaseProjectHelper.getSourceClasspaths(javaProject);
178             IWorkspaceRoot root = ResourcesPlugin.getWorkspace().getRoot();
179             for (IPath path : sourceFolders) {
180                 IResource member = root.findMember(path);
181                 if (member != null) {
182                     removeDerivedResources(member, monitor);
183                 }
184             }
185 
186             // create the new source folder, if needed
187             IFolder genFolder = project.getFolder(SdkConstants.FD_GEN_SOURCES);
188             if (genFolderPresent == false) {
189                 AdtPlugin.printBuildToConsole(BuildVerbosity.VERBOSE, project,
190                         "Creating 'gen' source folder for generated Java files");
191                 genFolder.create(true /* force */, true /* local */,
192                         new SubProgressMonitor(monitor, 10));
193             }
194 
195             // add it to the source folder list, if needed only (or it will throw)
196             if (hasGenSrcFolder == false) {
197                 IClasspathEntry[] entries = javaProject.getRawClasspath();
198                 entries = ProjectHelper.addEntryToClasspath(entries,
199                         JavaCore.newSourceEntry(genFolder.getFullPath()));
200                 javaProject.setRawClasspath(entries, new SubProgressMonitor(monitor, 10));
201             }
202 
203             // refresh specifically the gen folder first, as it may break the build
204             // if it doesn't arrive in time then refresh the whole project as usual.
205             genFolder.refreshLocal(IResource.DEPTH_ZERO, new SubProgressMonitor(monitor, 10));
206             project.refreshLocal(IResource.DEPTH_INFINITE, new SubProgressMonitor(monitor, 10));
207 
208             // it seems like doing this fails to properly rebuild the project. the Java builder
209             // running right after this builder will not see the gen folder, and will not be
210             // restarted after this build. Therefore in this particular case, we start another
211             // build asynchronously so that it's rebuilt after this build.
212             launchJob(new Job("rebuild") {
213                 @Override
214                 protected IStatus run(IProgressMonitor m) {
215                     try {
216                         project.build(IncrementalProjectBuilder.INCREMENTAL_BUILD, m);
217                         return Status.OK_STATUS;
218                     } catch (CoreException e) {
219                         return e.getStatus();
220                     }
221                 }
222             });
223 
224         }
225 
226         // convert older projects which use bin as the eclipse output folder into projects
227         // using bin/classes
228         IFolder androidOutput = BaseProjectHelper.getAndroidOutputFolder(project);
229         IFolder javaOutput = BaseProjectHelper.getJavaOutputFolder(project);
230         if (androidOutput.exists() == false || javaOutput == null ||
231                 javaOutput.getParent().equals(androidOutput) == false) {
232             // get what we want as the new java output.
233             IFolder newJavaOutput = androidOutput.getFolder(SdkConstants.FD_CLASSES_OUTPUT);
234 
235             if (androidOutput.exists() == false) {
236                 androidOutput.create(true /*force*/, true /*local*/, monitor);
237             }
238 
239             if (newJavaOutput.exists() == false) {
240                 newJavaOutput.create(true /*force*/, true /*local*/, monitor);
241             }
242 
243             // set the java output to this project.
244             javaProject.setOutputLocation(newJavaOutput.getFullPath(), monitor);
245 
246             // need to do a full build. Can't build while we're already building, so launch a
247             // job to build it right after this build
248             launchJob(new Job("rebuild") {
249                 @Override
250                 protected IStatus run(IProgressMonitor jobMonitor) {
251                     try {
252                         project.build(IncrementalProjectBuilder.CLEAN_BUILD, jobMonitor);
253                         return Status.OK_STATUS;
254                     } catch (CoreException e) {
255                         return e.getStatus();
256                     }
257                 }
258             });
259         }
260 
261         // check that we have bin/res/
262         IFolder binResFolder = androidOutput.getFolder(SdkConstants.FD_RESOURCES);
263         if (binResFolder.exists() == false) {
264             binResFolder.create(true /* force */, true /* local */,
265                     new SubProgressMonitor(monitor, 10));
266             project.refreshLocal(IResource.DEPTH_ONE, new SubProgressMonitor(monitor, 10));
267         }
268 
269         // Check the preference to be sure we are supposed to refresh
270         // the folders.
271         if (AdtPrefs.getPrefs().getBuildForceResResfresh()) {
272             AdtPlugin.printBuildToConsole(BuildVerbosity.VERBOSE, project, Messages.Refreshing_Res);
273 
274             // refresh the res folder.
275             IFolder resFolder = project.getFolder(AdtConstants.WS_RESOURCES);
276             resFolder.refreshLocal(IResource.DEPTH_INFINITE, monitor);
277 
278             // Also refresh the assets folder to make sure the ApkBuilder
279             // will now it's changed and will force a new resource packaging.
280             IFolder assetsFolder = project.getFolder(AdtConstants.WS_ASSETS);
281             assetsFolder.refreshLocal(IResource.DEPTH_INFINITE, monitor);
282         }
283 
284         return null;
285     }
286 }
287