Add Windows support for CDT Build in Container

- fix AutotoolsNewMakeGenerator.getWinOSType to not specify "." for
  working dir
- fix GCCBuiltinSpecsDetectorCygwin to not map paths to Cygwin if
  the current configuration is enabled for container build
- add logic to ContainerCommandLauncher to look for Windows
  file formats and change them to unix format and map
  any "." working dir to be /tmp
- fix ContainerLauncherConfigurationDelegate similarly

build/org.eclipse.cdt.autotools.core/src/org/eclipse/cdt/internal/autotools/core/AutotoolsNewMakeGenerator.java

@@ -1042,7 +1042,7 @@ public class AutotoolsNewMakeGenerator extends MarkerGenerator {
 						new Path(SHELL_COMMAND), //$NON-NLS-1$
 						new String[] { "-c", "echo $OSTYPE" }, //$NON-NLS-1$ //$NON-NLS-2$
 						env,
-						new Path("."), //$NON-NLS-1$
+						buildLocation,
 						SubMonitor.convert(monitor));
 				if (launcher.waitAndRead(out, out) == ICommandLauncher.OK)
 					winOSType = out.toString().trim();

build/org.eclipse.cdt.managedbuilder.core/src/org/eclipse/cdt/managedbuilder/internal/language/settings/providers/GCCBuiltinSpecsDetectorCygwin.java

@@ -12,11 +12,17 @@
 package org.eclipse.cdt.managedbuilder.internal.language.settings.providers;
 
 import java.net.URI;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
 
 import org.eclipse.cdt.core.EFSExtensionProvider;
 import org.eclipse.cdt.internal.core.Cygwin;
+import org.eclipse.cdt.managedbuilder.buildproperties.IOptionalBuildProperties;
+import org.eclipse.cdt.managedbuilder.core.IConfiguration;
+import org.eclipse.cdt.managedbuilder.core.ManagedBuildManager;
 import org.eclipse.cdt.managedbuilder.core.ManagedBuilderCorePlugin;
 import org.eclipse.cdt.managedbuilder.language.settings.providers.GCCBuiltinSpecsDetector;
+import org.eclipse.core.runtime.Platform;
 
 /**
  * Class to detect built-in compiler settings for Cygwin toolchain.
@@ -26,6 +32,7 @@ public class GCCBuiltinSpecsDetectorCygwin extends GCCBuiltinSpecsDetector {
 	// ID must match the tool-chain definition in org.eclipse.cdt.managedbuilder.core.buildDefinitions extension point
 	private static final String GCC_TOOLCHAIN_ID_CYGWIN = "cdt.managedbuild.toolchain.gnu.cygwin.base";  //$NON-NLS-1$
 	private static final String ENV_PATH = "PATH"; //$NON-NLS-1$
+	public static final String CONTAINER_ENABLEMENT_PROPERTY = "org.eclipse.cdt.docker.launcher.containerbuild.property.enablement"; //$NON-NLS-1$
 
 	/**
 	 * EFSExtensionProvider for Cygwin translations
@@ -46,7 +53,14 @@ public class GCCBuiltinSpecsDetectorCygwin extends GCCBuiltinSpecsDetector {
 			String windowsPath = null;
 			try {
 				String cygwinPath = getPathFromURI(locationURI);
-				windowsPath = Cygwin.cygwinToWindowsPath(cygwinPath, envPathValue);
+				IConfiguration cfg = ManagedBuildManager.getConfigurationForDescription(currentCfgDescription);
+				if (cfg != null) {
+					IOptionalBuildProperties bp = cfg.getOptionalBuildProperties();
+					String ep = bp.getProperty(CONTAINER_ENABLEMENT_PROPERTY);
+					if (ep == null || !Boolean.parseBoolean(ep)) {
+						windowsPath = Cygwin.cygwinToWindowsPath(cygwinPath, envPathValue);
+					}
+				}
 			} catch (Exception e) {
 				ManagedBuilderCorePlugin.log(e);
 			}

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

@@ -23,6 +23,7 @@ import org.eclipse.core.runtime.CoreException;
 import org.eclipse.core.runtime.IPath;
 import org.eclipse.core.runtime.IProgressMonitor;
 import org.eclipse.core.runtime.Path;
+import org.eclipse.core.runtime.Platform;
 import org.eclipse.core.runtime.preferences.InstanceScope;
 import org.eclipse.core.variables.VariablesPlugin;
 import org.eclipse.linuxtools.docker.ui.launch.ContainerLauncher;
@@ -131,32 +132,61 @@ public class ContainerCommandLauncher
 		List<String> additionalDirs = new ArrayList<>();
 
 		//
-		additionalDirs.add(fProject.getLocation().toPortableString());
+		IPath projectLocation = fProject.getLocation();
+		String projectPath = projectLocation.toPortableString();
+		if (projectLocation.getDevice() != null) {
+			projectPath = "/" + projectPath.replace(':', '/'); //$NON-NLS-1$
+		}
+		additionalDirs.add(projectPath);
 
 		ArrayList<String> commandSegments = new ArrayList<>();
 
 		StringBuilder b = new StringBuilder();
-		b.append(commandPath.toString().trim());
-		commandSegments.add(commandPath.toString().trim());
+		String commandString = commandPath.toPortableString();
+		if (commandPath.getDevice() != null) {
+			commandString = "/" + commandString.replace(':', '/'); //$NON-NLS-1$
+		}
+		b.append(commandString);
+		commandSegments.add(commandString);
 		for (String arg : args) {
 			b.append(" "); //$NON-NLS-1$
 			String realArg = VariablesPlugin.getDefault()
 					.getStringVariableManager().performStringSubstitution(arg);
-			b.append(realArg);
-			if (realArg.startsWith("/")) { //$NON-NLS-1$
+			if (Platform.getOS().equals(Platform.OS_WIN32)) {
 				// check if file exists and if so, add an additional directory
 				IPath p = new Path(realArg);
-				if (p.isValidPath(realArg)) {
-					p = p.makeAbsolute();
+				if (p.isValidPath(realArg) && p.getDevice() != null) {
 					File f = p.toFile();
-					if (f.exists()) {
-						if (f.isFile()) {
-							p = p.removeLastSegments(1);
-						}
-						additionalDirs.add(p.toPortableString());
+					String modifiedArg = realArg;
+					// if the directory of the arg as a file exists, we mount it
+					// and modify the argument to be unix-style
+					if (f.isFile()) {
+						f = f.getParentFile();
+						modifiedArg = "/" //$NON-NLS-1$
+								+ p.toPortableString().replace(':', '/');
+						p = p.removeLastSegments(1);
+					}
+					if (f != null && f.exists()) {
+						additionalDirs.add(
+								"/" + p.toPortableString().replace(':', '/')); //$NON-NLS-1$
+						realArg = modifiedArg;
+					}
+				}
+			} else if (realArg.startsWith("/")) { //$NON-NLS-1$
+				// check if file directory exists and if so, add an additional
+				// directory
+				IPath p = new Path(realArg);
+				if (p.isValidPath(realArg)) {
+					File f = p.toFile();
+					if (f.isFile()) {
+						f = f.getParentFile();
+					}
+					if (f != null && f.exists()) {
+						additionalDirs.add(f.getAbsolutePath());
 					}
 				}
 			}
+			b.append(realArg);
 			commandSegments.add(realArg);
 		}
 		
@@ -165,17 +195,30 @@ public class ContainerCommandLauncher
 		String commandDir = commandPath.removeLastSegments(1).toString();
 		if (commandDir.isEmpty()) {
 			commandDir = null;
+		} else if (commandPath.getDevice() != null) {
+			commandDir = "/" + commandDir.replace(':', '/'); //$NON-NLS-1$
 		}
 
 		IProject[] referencedProjects = fProject.getReferencedProjects();
 		for (IProject referencedProject : referencedProjects) {
+			String referencedProjectPath = referencedProject.getLocation()
+					.toPortableString();
+			if (referencedProject.getLocation().getDevice() != null) {
+				referencedProjectPath = "/" //$NON-NLS-1$
+						+ referencedProjectPath.replace(':', '/');
+			}
 			additionalDirs
-					.add(referencedProject.getLocation().toPortableString());
+					.add(referencedProjectPath);
 		}
 
 		String command = b.toString();
 
-		String workingDir = workingDirectory.toPortableString();
+		String workingDir = workingDirectory.makeAbsolute().toPortableString();
+		if (workingDirectory.toPortableString().equals(".")) { //$NON-NLS-1$
+			workingDir = "/tmp"; //$NON-NLS-1$
+		} else if (workingDirectory.getDevice() != null) {
+			workingDir = "/" + workingDir.replace(':', '/'); //$NON-NLS-1$
+		}
 		parseEnvironment(env);
 		Map<String, String> origEnv = null;
 
@@ -205,7 +248,18 @@ public class ContainerCommandLauncher
 		if (selectedVolumeString != null && !selectedVolumeString.isEmpty()) {
 			String[] selectedVolumes = selectedVolumeString
 					.split(VOLUME_SEPARATOR_REGEX);
-			additionalDirs.addAll(Arrays.asList(selectedVolumes));
+			if (Platform.getOS().equals(Platform.OS_WIN32)) {
+				for (String selectedVolume : selectedVolumes) {
+					IPath path = new Path(selectedVolume);
+					String selectedPath = path.toPortableString();
+					if (path.getDevice() != null) {
+						selectedPath = "/" + selectedPath.replace(':', '/'); //$NON-NLS-1$
+					}
+					additionalDirs.add(selectedPath);
+				}
+			} else {
+				additionalDirs.addAll(Arrays.asList(selectedVolumes));
+			}
 		}
 
 		String connectionName = props

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

@@ -10,6 +10,7 @@
  *******************************************************************************/
 package org.eclipse.cdt.internal.docker.launcher;
 
+import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.HashMap;
 import java.util.List;
@@ -129,10 +130,16 @@ public class ContainerLaunchConfigurationDelegate extends GdbLaunchDelegate
 			labels.put("org.eclipse.cdt.project-name", projectName); //$NON-NLS-1$
 			if (mode.equals(ILaunchManager.RUN_MODE)) {
 				String commandDir = commandPath.removeLastSegments(1)
-						.toString();
+						.toPortableString();
+				String commandString = commandPath.toPortableString();
+
+				if (commandPath.getDevice() != null) {
+					commandDir = "/" + commandDir.replace(':', '/'); //$NON-NLS-1$
+					commandString = "/" + commandString.replace(':', '/'); //$NON-NLS-1$
+				}
 
 				StringBuilder b = new StringBuilder();
-				b.append(commandPath.toString().trim());
+				b.append(commandString);
 
 				String arguments = getProgramArguments(configuration);
 				if (arguments.trim().length() > 0) {
@@ -146,6 +153,13 @@ public class ContainerLaunchConfigurationDelegate extends GdbLaunchDelegate
 						.getAttribute(
 								ICDTLaunchConfigurationConstants.ATTR_WORKING_DIRECTORY,
 								(String) null);
+				if (workingDir != null) {
+					IPath workingPath = new Path(workingDir);
+					if (workingPath.getDevice() != null) {
+						workingDir = "/" + workingPath.toPortableString() //$NON-NLS-1$
+								.replace(':', '/');
+					}
+				}
 				Map<String, String> envMap = configuration.getAttribute(
 						ILaunchManager.ATTR_ENVIRONMENT_VARIABLES,
 						(Map<String, String>) null);
@@ -160,6 +174,18 @@ public class ContainerLaunchConfigurationDelegate extends GdbLaunchDelegate
 				List<String> additionalDirs = configuration.getAttribute(
 						ILaunchConstants.ATTR_ADDITIONAL_DIRS,
 						(List<String>) null);
+				if (additionalDirs != null) {
+					List<String> dirs = new ArrayList<>();
+					for (String additionalDir : additionalDirs) {
+						IPath path = new Path(additionalDir);
+						String dir = path.toPortableString();
+						if (path.getDevice() != null) {
+							dir = "/" + dir.replace(':', '/');
+						}
+						dirs.add(dir);
+					}
+					additionalDirs = dirs;
+				}
 				String image = configuration.getAttribute(
 						ILaunchConstants.ATTR_IMAGE, (String) null);
 				String connectionUri = configuration.getAttribute(
@@ -188,11 +214,18 @@ public class ContainerLaunchConfigurationDelegate extends GdbLaunchDelegate
 				String gdbserverCommand = configuration.getAttribute(
 						ILaunchConstants.ATTR_GDBSERVER_COMMAND,
 						ILaunchConstants.ATTR_GDBSERVER_COMMAND_DEFAULT);
-				String commandArguments = ":" + gdbserverPortNumber + " " //$NON-NLS-1$ //$NON-NLS-2$
-						+ spaceEscapify(commandPath.toString());
 
+				String commandString = commandPath.toPortableString();
 				String commandDir = commandPath.removeLastSegments(1)
-						.toString();
+						.toPortableString();
+
+				if (commandPath.getDevice() != null) {
+					commandDir = "/" + commandDir.replace(':', '/'); //$NON-NLS-1$
+					commandString = "/" + commandString.replace(':', '/'); //$NON-NLS-1$
+				}
+
+				String commandArguments = ":" + gdbserverPortNumber + " " //$NON-NLS-1$ //$NON-NLS-2$
+						+ spaceEscapify(commandString);
 
 				StringBuilder b = new StringBuilder();
 
@@ -209,6 +242,14 @@ public class ContainerLaunchConfigurationDelegate extends GdbLaunchDelegate
 						.getAttribute(
 								ICDTLaunchConfigurationConstants.ATTR_WORKING_DIRECTORY,
 								(String) null);
+				if (workingDir != null) {
+					IPath workingPath = new Path(workingDir);
+					if (workingPath.getDevice() != null) {
+						workingDir = "/" + workingPath.toPortableString() //$NON-NLS-1$
+								.replace(':', '/');
+					}
+				}
+
 				Map<String, String> envMap = configuration.getAttribute(
 						ILaunchManager.ATTR_ENVIRONMENT_VARIABLES,
 						(Map<String, String>) null);
@@ -223,6 +264,19 @@ public class ContainerLaunchConfigurationDelegate extends GdbLaunchDelegate
 				List<String> additionalDirs = configuration.getAttribute(
 						ILaunchConstants.ATTR_ADDITIONAL_DIRS,
 						(List<String>) null);
+				if (additionalDirs != null) {
+					List<String> dirs = new ArrayList<>();
+					for (String additionalDir : additionalDirs) {
+						IPath path = new Path(additionalDir);
+						String dir = path.toPortableString();
+						if (path.getDevice() != null) {
+							dir = "/" + dir.replace(':', '/');
+						}
+						dirs.add(dir);
+					}
+					additionalDirs = dirs;
+				}
+
 				String image = configuration.getAttribute(
 						ILaunchConstants.ATTR_IMAGE, (String) null);
 				String connectionUri = configuration.getAttribute(