Add support to copy header files from Container to Host

- add logic in ContainerPropertyTab to kick off gcc specs discovery
  when the OK button is pressed
- also fix bug in ContainerPropertyTab whereby the image name
  was being reset to blank when a change occurred in connection combo
- add setLanguageSettngEntries method to CommandLauncherFactoryManager
- add registerLanguangeSettingEntries method to ICommandLauncherFactory
  and ContainerCommandLauncherFactory

Change-Id: I22f60a5ff42f9312cba42ca4d3b6f78225783378

core/org.eclipse.cdt.core/model/org/eclipse/cdt/core/language/settings/providers/LanguageSettingsSerializableProvider.java

@@ -17,6 +17,7 @@ import java.util.Map;
 import java.util.Map.Entry;
 
 import org.eclipse.cdt.core.CCorePlugin;
+import org.eclipse.cdt.core.CommandLauncherFactoryManager;
 import org.eclipse.cdt.core.settings.model.ICConfigurationDescription;
 import org.eclipse.cdt.core.settings.model.ICLanguageSettingEntry;
 import org.eclipse.cdt.internal.core.XmlUtil;
@@ -146,6 +147,7 @@ public class LanguageSettingsSerializableProvider extends LanguageSettingsBasePr
 			List<? extends ICLanguageSettingEntry> entries) {
 		String rcProjectPath = rc!=null ? rc.getProjectRelativePath().toString() : null;
 		fStorage.setSettingEntries(rcProjectPath, languageId, entries);
+		CommandLauncherFactoryManager.getInstance().setLanguageSettingEntries(cfgDescription.getProjectDescription().getProject(), entries);
 	}
 
 	/**

core/org.eclipse.cdt.core/src/org/eclipse/cdt/core/CommandLauncherFactoryManager.java

@@ -15,6 +15,7 @@ import java.util.ArrayList;
 import java.util.List;
 import java.util.Properties;
 
+import org.eclipse.cdt.core.settings.model.ICLanguageSettingEntry;
 import org.eclipse.core.resources.IProject;
 import org.eclipse.core.runtime.CoreException;
 import org.eclipse.core.runtime.IConfigurationElement;
@@ -202,5 +203,15 @@ public class CommandLauncherFactoryManager {
 		}
 	}
 
+	public void setLanguageSettingEntries(IProject project, List<? extends ICLanguageSettingEntry> entries) {
+		for (ICommandLauncherFactory factory : factories) {
+			ICommandLauncher launcher = factory.getCommandLauncher(project);
+			if (launcher != null) {
+				factory.registerLanguageSettingEntries(project, entries);
+			}
+		}
+
+	}
+
 
 }

core/org.eclipse.cdt.core/src/org/eclipse/cdt/core/ICommandLauncherFactory.java

@@ -10,6 +10,9 @@
  *******************************************************************************/
 package org.eclipse.cdt.core;
 
+import java.util.List;
+
+import org.eclipse.cdt.core.settings.model.ICLanguageSettingEntry;
 import org.eclipse.core.resources.IProject;
 
 /**
@@ -24,4 +27,11 @@ public interface ICommandLauncherFactory {
 	 */
 	public ICommandLauncher getCommandLauncher(IProject project);
 
+	/**
+	 * Register language setting entries for a project
+	 * @param project - IProject used in obtaining language setting entries
+	 * @param entries - List of language setting entries
+	 */
+	public void registerLanguageSettingEntries(IProject project, List<? extends ICLanguageSettingEntry> entries);
+
 }

launch/org.eclipse.cdt.docker.launcher/src/org/eclipse/cdt/docker/launcher/ContainerCommandLauncherFactory.java

@@ -10,15 +10,24 @@
  *******************************************************************************/
 package org.eclipse.cdt.docker.launcher;
 
+import java.util.ArrayList;
+import java.util.List;
+
 import org.eclipse.cdt.core.ICommandLauncher;
 import org.eclipse.cdt.core.ICommandLauncherFactory;
 import org.eclipse.cdt.core.model.CoreModel;
 import org.eclipse.cdt.core.settings.model.ICConfigurationDescription;
+import org.eclipse.cdt.core.settings.model.ICIncludePathEntry;
+import org.eclipse.cdt.core.settings.model.ICLanguageSettingEntry;
 import org.eclipse.cdt.internal.docker.launcher.ContainerCommandLauncher;
+import org.eclipse.cdt.internal.docker.launcher.Messages;
 import org.eclipse.cdt.managedbuilder.buildproperties.IOptionalBuildProperties;
 import org.eclipse.cdt.managedbuilder.core.IConfiguration;
 import org.eclipse.cdt.managedbuilder.core.ManagedBuildManager;
 import org.eclipse.core.resources.IProject;
+import org.eclipse.core.runtime.IPath;
+import org.eclipse.core.runtime.Platform;
+import org.eclipse.linuxtools.docker.ui.launch.ContainerLauncher;
 
 public class ContainerCommandLauncherFactory
 		implements ICommandLauncherFactory {
@@ -47,4 +56,58 @@ public class ContainerCommandLauncherFactory
 		return null;
 	}
 
+	@Override
+	public void registerLanguageSettingEntries(IProject project,
+			List<? extends ICLanguageSettingEntry> entries) {
+		ICConfigurationDescription cfgd = CoreModel.getDefault()
+				.getProjectDescription(project).getActiveConfiguration();
+		IConfiguration cfg = ManagedBuildManager
+				.getConfigurationForDescription(cfgd);
+		IOptionalBuildProperties props = cfg.getOptionalBuildProperties();
+		if (props != null) {
+			String enablementProperty = props.getProperty(
+					ContainerCommandLauncher.CONTAINER_BUILD_ENABLED);
+			if (enablementProperty != null) {
+				boolean enableContainer = Boolean
+						.parseBoolean(enablementProperty);
+				if (enableContainer) {
+					String connectionName = props.getProperty(
+							ContainerCommandLauncher.CONNECTION_ID);
+					String imageName = props
+							.getProperty(ContainerCommandLauncher.IMAGE_ID);
+					if (connectionName == null || connectionName.isEmpty()
+							|| imageName == null || imageName.isEmpty()) {
+						DockerLaunchUIPlugin.logErrorMessage(
+								Messages.ContainerCommandLauncher_invalid_values);
+						return;
+					}
+					String prefix = getCleanName(connectionName)
+							+ IPath.SEPARATOR
+							+ getCleanName(imageName); //$NON-NLS-1$ //$NON-NLS-2$
+					ContainerLauncher launcher = new ContainerLauncher();
+					List<String> paths = new ArrayList<>();
+					for (ICLanguageSettingEntry entry : entries) {
+						if (entry instanceof ICIncludePathEntry) {
+							String path = entry.getValue();
+							paths.add(path);
+						}
+					}
+					if (paths.size() > 0) {
+						IPath pluginPath = Platform.getStateLocation(Platform
+								.getBundle(DockerLaunchUIPlugin.PLUGIN_ID));
+						IPath hostDir = pluginPath.append(prefix);
+						int status = launcher.fetchContainerDirs(connectionName,
+								imageName,
+								paths, hostDir);
+					}
+				}
+			}
+		}
+
+	}
+
+	private String getCleanName(String name) {
+		return name.replaceAll("[:/]", "_"); //$NON-NLS-1$ //$NON-NLS-2$
+	}
+
 }

launch/org.eclipse.cdt.docker.launcher/src/org/eclipse/cdt/internal/docker/launcher/ContainerPropertyTab.java

@@ -11,14 +11,19 @@
 package org.eclipse.cdt.internal.docker.launcher;
 
 import java.util.ArrayList;
+import java.util.List;
 
+import org.eclipse.cdt.core.language.settings.providers.ILanguageSettingsProvider;
+import org.eclipse.cdt.core.language.settings.providers.ILanguageSettingsProvidersKeeper;
 import org.eclipse.cdt.core.settings.model.ICConfigurationDescription;
 import org.eclipse.cdt.core.settings.model.ICMultiConfigDescription;
 import org.eclipse.cdt.core.settings.model.ICResourceDescription;
 import org.eclipse.cdt.managedbuilder.buildproperties.IOptionalBuildProperties;
 import org.eclipse.cdt.managedbuilder.core.IConfiguration;
 import org.eclipse.cdt.managedbuilder.core.IMultiConfiguration;
+import org.eclipse.cdt.managedbuilder.core.ManagedBuildManager;
 import org.eclipse.cdt.managedbuilder.internal.core.Configuration;
+import org.eclipse.cdt.managedbuilder.language.settings.providers.GCCBuiltinSpecsDetector;
 import org.eclipse.cdt.managedbuilder.ui.properties.AbstractCBuildPropertyTab;
 import org.eclipse.linuxtools.docker.core.DockerConnectionManager;
 import org.eclipse.linuxtools.docker.core.IDockerConnection;
@@ -83,8 +88,6 @@ public class ContainerPropertyTab extends AbstractCBuildPropertyTab
 			connectionName = connection.getName();
 			properties.setProperty(ContainerCommandLauncher.CONNECTION_ID,
 					connectionUri);
-			properties.setProperty(ContainerCommandLauncher.IMAGE_ID,
-					imageCombo.getText());
 		}
 
 	};
@@ -265,7 +268,6 @@ public class ContainerPropertyTab extends AbstractCBuildPropertyTab
 			if (defaultImage != null) {
 				int index = imageCombo.indexOf(defaultImage);
 				if (index > -1) {
-					imageCombo.getItem(index);
 					imageCombo.select(index);
 				} else {
 				}
@@ -313,6 +315,25 @@ public class ContainerPropertyTab extends AbstractCBuildPropertyTab
 	}
 
 
+	@Override
+	protected void performOK() {
+		if (enableButton.getSelection()) {
+			ICConfigurationDescription cfgd = ManagedBuildManager
+					.getDescriptionForConfiguration(iCfg);
+			List<ILanguageSettingsProvider> providers = ((ILanguageSettingsProvidersKeeper) cfgd)
+					.getLanguageSettingProviders();
+			for (ILanguageSettingsProvider provider : providers) {
+				if (provider instanceof GCCBuiltinSpecsDetector) {
+					GCCBuiltinSpecsDetector d = (GCCBuiltinSpecsDetector) provider;
+					// force recalculation of gcc include path
+					d.clear();
+					d.handleEvent(null);
+				}
+			}
+		}
+		super.performOK();
+	}
+
 	@Override
 	protected void performDefaults() {
 		if (iCfg instanceof IMultiConfiguration) {

launch/org.eclipse.cdt.docker.launcher/src/org/eclipse/cdt/internal/docker/launcher/Messages.java

@@ -96,6 +96,8 @@ public class Messages extends NLS {
 	public static String ContainerCommandLauncher_image_msg;
 	public static String CommandLauncher_CommandCancelled;
 
+	public static String ContainerCommandLauncher_invalid_values;
+
 	static {
 		// initialize resource bundle
 		NLS.initializeMessages(BUNDLE_NAME, Messages.class);

launch/org.eclipse.cdt.docker.launcher/src/org/eclipse/cdt/internal/docker/launcher/messages.properties

@@ -44,6 +44,7 @@ ContainerPropertyTab_Title=Container Settings
 ContainerPropertyTab_Enable_Msg=Build inside Docker Image
 
 ContainerCommandLauncher_image_msg=[Running in image <{0}>]
+ContainerCommandLauncher_invalid_values=Invalid values for Connection and/or Image name
 
 CommandLauncher_CommandCancelled=Command cancelled