Add support of copying source files into Eclipse:

https://github.com/konsoletyper/teavm/issues/13

teavm-classlib/pom.xml

@@ -85,6 +85,8 @@
             <phase>process-test-classes</phase>
             <configuration>
               <minifying>false</minifying>
+              <sourceMapsGenerated>true</sourceMapsGenerated>
+              <sourceFilesCopied>true</sourceFilesCopied>
               <properties>
                 <java.util.Locale.available>en, en_US, en_GB, ru, ru_RU</java.util.Locale.available>
               </properties>

teavm-core/src/main/java/org/teavm/tooling/JarSourceFileProvider.java

@@ -18,6 +18,9 @@ package org.teavm.tooling;
 import java.io.File;
 import java.io.IOException;
 import java.io.InputStream;
+import java.util.Enumeration;
+import java.util.HashSet;
+import java.util.Set;
 import java.util.zip.ZipEntry;
 import java.util.zip.ZipFile;
 
@@ -28,6 +31,7 @@ import java.util.zip.ZipFile;
 public class JarSourceFileProvider implements SourceFileProvider {
     private File file;
     private ZipFile zipFile;
+    private Set<String> sourceFiles = new HashSet<>();
 
     public JarSourceFileProvider(File file) {
         this.file = file;
@@ -36,6 +40,10 @@ public class JarSourceFileProvider implements SourceFileProvider {
     @Override
     public void open() throws IOException {
         zipFile = new ZipFile(file);
+        for (Enumeration<? extends ZipEntry> enumeration = zipFile.entries(); enumeration.hasMoreElements();) {
+            ZipEntry entry = enumeration.nextElement();
+            sourceFiles.add(entry.getName());
+        }
     }
 
     @Override
@@ -45,12 +53,13 @@ public class JarSourceFileProvider implements SourceFileProvider {
         }
         ZipFile zipFile = this.zipFile;
         this.zipFile = null;
+        sourceFiles.clear();
         zipFile.close();
     }
 
     @Override
     public InputStream openSourceFile(String fullPath) throws IOException {
-        if (zipFile == null) {
+        if (zipFile == null || !sourceFiles.contains(fullPath)) {
             return null;
         }
         ZipEntry entry = zipFile.getEntry(fullPath);

teavm-eclipse/teavm-eclipse-m2e-plugin/src/main/java/org/teavm/eclipse/m2e/TeaVMProjectConfigurator.java

@@ -93,7 +93,7 @@ public class TeaVMProjectConfigurator extends AbstractProjectConfigurator {
 
     private void configureProfile(MojoExecution execution, TeaVMProfile profile, IProgressMonitor monitor)
             throws CoreException {
-        monitor.beginTask("Configuring profile " + profile.getName(), 110);
+        monitor.beginTask("Configuring profile " + profile.getName(), 120);
         String buildDir = getProjectBuildDirectory();
 
         String mainClass = maven.getMojoParameterValue(mavenSession, execution, "mainClass", String.class);
@@ -131,6 +131,11 @@ public class TeaVMProjectConfigurator extends AbstractProjectConfigurator {
         profile.setSourceMapsGenerated(sourceMaps != null ? sourceMaps : false);
         monitor.worked(10);
 
+        Boolean sourceFiles = maven.getMojoParameterValue(mavenSession, execution, "sourceFilesCopied",
+                Boolean.class);
+        profile.setSourceFilesCopied(sourceFiles != null ? sourceFiles : false);
+        monitor.worked(10);
+
         Boolean incremental = maven.getMojoParameterValue(mavenSession, execution, "incremental", Boolean.class);
         profile.setIncremental(incremental != null ? incremental : false);
         monitor.worked(10);

teavm-eclipse/teavm-eclipse-plugin/src/main/java/org/teavm/eclipse/PreferencesBasedTeaVMProjectSettings.java

@@ -40,6 +40,7 @@ public class PreferencesBasedTeaVMProjectSettings implements TeaVMProjectSetting
     public static final String CACHE_DIRECTORY = "cacheDirectory";
     public static final String SOURCE_MAPS = "sourceMaps";
     public static final String DEBUG_INFORMATION = "debugInformation";
+    public static final String COPY_SOURCES = "copySources";
     public static final String PROPERTIES = "properties";
     public static final String CLASSES = "classes";
     public static final String TRANSFORMERS = "transformers";
@@ -160,6 +161,7 @@ public class PreferencesBasedTeaVMProjectSettings implements TeaVMProjectSetting
         private String cacheDirectory;
         private boolean sourceMapsGenerated;
         private boolean debugInformationGenerated;
+        private boolean sourceFilesCopied;
         private Properties properties = new Properties();
         private String[] transformers = new String[0];
         private Map<String, String> classAliases = new HashMap<>();
@@ -281,6 +283,16 @@ public class PreferencesBasedTeaVMProjectSettings implements TeaVMProjectSetting
             this.debugInformationGenerated = debugInformationGenerated;
         }
 
+        @Override
+        public boolean isSourceFilesCopied() {
+            return sourceFilesCopied;
+        }
+
+        @Override
+        public void setSourceFilesCopied(boolean sourceFilesCopied) {
+            this.sourceFilesCopied = sourceFilesCopied;
+        }
+
         @Override
         public Properties getProperties() {
             Properties copy = new Properties();
@@ -336,6 +348,7 @@ public class PreferencesBasedTeaVMProjectSettings implements TeaVMProjectSetting
             cacheDirectory = preferences.get(CACHE_DIRECTORY, "");
             sourceMapsGenerated = preferences.getBoolean(SOURCE_MAPS, true);
             debugInformationGenerated = preferences.getBoolean(DEBUG_INFORMATION, true);
+            sourceFilesCopied = preferences.getBoolean(COPY_SOURCES, true);
             Preferences propertiesPrefs = preferences.node(PROPERTIES);
             propertiesPrefs.sync();
             properties = new Properties();
@@ -365,6 +378,7 @@ public class PreferencesBasedTeaVMProjectSettings implements TeaVMProjectSetting
             preferences.put(CACHE_DIRECTORY, cacheDirectory);
             preferences.putBoolean(SOURCE_MAPS, sourceMapsGenerated);
             preferences.putBoolean(DEBUG_INFORMATION, debugInformationGenerated);
+            preferences.putBoolean(COPY_SOURCES, sourceFilesCopied);
             Preferences propertiesPrefs = preferences.node(PROPERTIES);
             propertiesPrefs.clear();
             for (Object key : properties.keySet()) {

teavm-eclipse/teavm-eclipse-plugin/src/main/java/org/teavm/eclipse/TeaVMProfile.java

@@ -67,6 +67,10 @@ public interface TeaVMProfile {
 
     void setDebugInformationGenerated(boolean debugInformationGenerated);
 
+    boolean isSourceFilesCopied();
+
+    void setSourceFilesCopied(boolean sourceFilesCopied);
+
     Properties getProperties();
 
     void setProperties(Properties properties);

teavm-eclipse/teavm-eclipse-plugin/src/main/java/org/teavm/eclipse/TeaVMProjectBuilder.java

@@ -23,7 +23,10 @@ import java.net.URL;
 import java.net.URLClassLoader;
 import java.util.*;
 import org.eclipse.core.resources.*;
-import org.eclipse.core.runtime.*;
+import org.eclipse.core.runtime.CoreException;
+import org.eclipse.core.runtime.IPath;
+import org.eclipse.core.runtime.IProgressMonitor;
+import org.eclipse.core.runtime.SubProgressMonitor;
 import org.eclipse.core.variables.IStringVariableManager;
 import org.eclipse.core.variables.VariablesPlugin;
 import org.eclipse.jdt.core.IClasspathEntry;
@@ -34,10 +37,7 @@ import org.teavm.model.ClassHolderTransformer;
 import org.teavm.model.InstructionLocation;
 import org.teavm.model.MethodReference;
 import org.teavm.model.ValueType;
-import org.teavm.tooling.ClassAlias;
+import org.teavm.tooling.*;
-import org.teavm.tooling.RuntimeCopyOperation;
-import org.teavm.tooling.TeaVMTool;
-import org.teavm.tooling.TeaVMToolException;
 
 /**
  *
@@ -48,6 +48,7 @@ public class TeaVMProjectBuilder extends IncrementalProjectBuilder {
     private URL[] classPath;
     private IContainer[] sourceContainers;
     private IContainer[] classFileContainers;
+    private SourceFileProvider[] sourceProviders;
     private Set<IProject> usedProjects = new HashSet<>();
     private static Map<TeaVMProfile, Set<String>> profileClasses = new WeakHashMap<>();
 
@@ -98,6 +99,7 @@ public class TeaVMProjectBuilder extends IncrementalProjectBuilder {
         tool.setClassLoader(classLoader);
         tool.setDebugInformationGenerated(profile.isDebugInformationGenerated());
         tool.setSourceMapsFileGenerated(profile.isSourceMapsGenerated());
+        tool.setSourceFilesCopied(profile.isSourceFilesCopied());
         String targetDir = profile.getTargetDirectory();
         tool.setTargetDirectory(new File(varManager.performStringSubstitution(targetDir, false)));
         tool.setTargetFileName(profile.getTargetFileName());
@@ -118,6 +120,9 @@ public class TeaVMProjectBuilder extends IncrementalProjectBuilder {
             classAlias.setAlias(entry.getValue());
             tool.getClassAliases().add(classAlias);
         }
+        for (SourceFileProvider provider : sourceProviders) {
+            tool.addSourceFileProvider(provider);
+        }
         tool.setProgressListener(new TeaVMEclipseProgressListener(this, monitor, TICKS_PER_PROFILE));
         try {
             monitor.beginTask("Running TeaVM", 10000);
@@ -167,7 +172,7 @@ public class TeaVMProjectBuilder extends IncrementalProjectBuilder {
         }
         for (IProject project : getRelatedProjects()) {
             IResourceDelta delta = getDelta(project);
-            if (shouldBuild(classes, delta)) {
+            if (delta != null && shouldBuild(classes, delta)) {
                 return true;
             }
         }
@@ -405,6 +410,7 @@ public class TeaVMProjectBuilder extends IncrementalProjectBuilder {
     private void prepareClassPath() throws CoreException {
         classPath = new URL[0];
         sourceContainers = new IContainer[0];
+        sourceProviders = new SourceFileProvider[0];
         IProject project = getProject();
         if (!project.hasNature(JavaCore.NATURE_ID)) {
             return;
@@ -413,6 +419,7 @@ public class TeaVMProjectBuilder extends IncrementalProjectBuilder {
         PathCollector collector = new PathCollector();
         SourcePathCollector srcCollector = new SourcePathCollector();
         SourcePathCollector binCollector = new SourcePathCollector();
+        SourceFileCollector sourceFileCollector = new SourceFileCollector();
         IWorkspaceRoot workspaceRoot = project.getWorkspace().getRoot();
         try {
             if (javaProject.getOutputLocation() != null) {
@@ -423,6 +430,14 @@ public class TeaVMProjectBuilder extends IncrementalProjectBuilder {
         } catch (MalformedURLException e) {
             TeaVMEclipsePlugin.logError(e);
         }
+        Queue<IJavaProject> projectQueue = new ArrayDeque<>();
+        projectQueue.add(javaProject);
+        Set<IJavaProject> visitedProjects = new HashSet<>();
+        while (!projectQueue.isEmpty()) {
+            javaProject = projectQueue.remove();
+            if (!visitedProjects.add(javaProject)) {
+                continue;
+            }
             IClasspathEntry[] entries = javaProject.getResolvedClasspath(true);
             for (IClasspathEntry entry : entries) {
                 switch (entry.getEntryKind()) {
@@ -432,6 +447,9 @@ public class TeaVMProjectBuilder extends IncrementalProjectBuilder {
                         } catch (MalformedURLException e) {
                             TeaVMEclipsePlugin.logError(e);
                         }
+                        if (entry.getSourceAttachmentPath() != null) {
+                            sourceFileCollector.addFile(entry.getSourceAttachmentPath());
+                        }
                         break;
                     case IClasspathEntry.CPE_SOURCE:
                         if (entry.getOutputLocation() != null) {
@@ -442,9 +460,12 @@ public class TeaVMProjectBuilder extends IncrementalProjectBuilder {
                             }
                         }
                         IContainer srcContainer = (IContainer)workspaceRoot.findMember(entry.getPath());
-                    if (srcContainer != null && srcContainer.getProject() == project) {
+                        if (srcContainer != null) {
+                            if (srcContainer.getProject() == project) {
                                 srcCollector.addContainer(srcContainer);
                             }
+                            sourceFileCollector.addFile(srcContainer.getLocation());
+                        }
                         break;
                     case IClasspathEntry.CPE_PROJECT: {
                         IResource resource = ResourcesPlugin.getWorkspace().getRoot().findMember(entry.getPath());
@@ -463,13 +484,16 @@ public class TeaVMProjectBuilder extends IncrementalProjectBuilder {
                                 TeaVMEclipsePlugin.logError(e);
                             }
                         }
+                        projectQueue.add(depJavaProject);
                         break;
                     }
                 }
             }
+        }
         classPath = collector.getUrls();
         sourceContainers = srcCollector.getContainers();
         classFileContainers = binCollector.getContainers();
+        sourceProviders = sourceFileCollector.getProviders();
     }
 
     static class PathCollector {
@@ -497,6 +521,30 @@ public class TeaVMProjectBuilder extends IncrementalProjectBuilder {
         }
     }
 
+    static class SourceFileCollector {
+        private Set<String> files = new HashSet<>();
+        private List<SourceFileProvider> providers = new ArrayList<>();
+
+        public void addFile(IPath path) {
+            if (!files.add(path.toString())) {
+                return;
+            }
+            File file = path.toFile();
+            if (!file.exists()) {
+                return;
+            }
+            if (file.isDirectory()) {
+                providers.add(new DirectorySourceFileProvider(file));
+            } else {
+                providers.add(new JarSourceFileProvider(file));
+            }
+        }
+
+        public SourceFileProvider[] getProviders() {
+            return providers.toArray(new SourceFileProvider[providers.size()]);
+        }
+    }
+
     static class SourcePathCollector {
         private Set<IContainer> containerSet = new HashSet<>();
         private List<IContainer> containers = new ArrayList<>();

teavm-eclipse/teavm-eclipse-plugin/src/main/java/org/teavm/eclipse/ui/TeaVMProfileDialog.java

@@ -69,6 +69,7 @@ public class TeaVMProfileDialog extends Dialog {
     private Button cacheDirectoryFileSystemButton;
     private Button debugInformationButton;
     private Button sourceMapsButton;
+    private Button sourceFilesCopiedButton;
     private TableViewer propertiesTableViewer;
     private Button addPropertyButton;
     private Button deletePropertyButton;
@@ -173,6 +174,7 @@ public class TeaVMProfileDialog extends Dialog {
         Group group = createGroup(parent, "Debug settings", 1, false);
         createDebugInformationField(group);
         createSourceMapsField(group);
+        createSourceFilesCopiedField(group);
     }
 
     private void createPropertiesGroup(Composite parent) {
@@ -521,6 +523,11 @@ public class TeaVMProfileDialog extends Dialog {
         sourceMapsButton.setText("Generate source maps");
     }
 
+    private void createSourceFilesCopiedField(Composite container) {
+        sourceFilesCopiedButton = new Button(container, SWT.CHECK);
+        sourceFilesCopiedButton.setText("Copy source files");
+    }
+
     public void setProject(IProject project) throws CoreException {
         if (project.hasNature(JavaCore.NATURE_ID)) {
             this.javaProject = JavaCore.create(project);
@@ -668,6 +675,7 @@ public class TeaVMProfileDialog extends Dialog {
         cacheDirectoryField.setText(profile.getCacheDirectory());
         debugInformationButton.setSelection(profile.isDebugInformationGenerated());
         sourceMapsButton.setSelection(profile.isSourceMapsGenerated());
+        sourceFilesCopiedButton.setSelection(profile.isSourceFilesCopied());
         propertyList.clear();
         Properties properties = profile.getProperties();
         for (Object key : properties.keySet()) {
@@ -708,6 +716,7 @@ public class TeaVMProfileDialog extends Dialog {
         profile.setCacheDirectory(cacheDirectoryField.getText());
         profile.setDebugInformationGenerated(debugInformationButton.getSelection());
         profile.setSourceMapsGenerated(sourceMapsButton.getSelection());
+        profile.setSourceFilesCopied(sourceFilesCopiedButton.getSelection());
         Properties properties = new Properties();
         for (Object item : propertyList) {
             KeyValue property = (KeyValue)item;