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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 
     58     public ResourceManagerBuilder() {
     59         super();
     60     }
     61 
     62     @Override
     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
     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