[resolve] Add a default native capability when none set

biz.aQute.bndlib/src/aQute/bnd/osgi/OSInformation.java

@@ -11,9 +11,9 @@
 
 import aQute.bnd.osgi.resource.CapabilityBuilder;
 import aQute.bnd.osgi.resource.ResourceUtils;
-import aQute.bnd.version.MavenVersion;
 import aQute.bnd.version.Version;
 import aQute.lib.strings.Strings;
+import aQute.service.reporter.Reporter;
 
 /**
  * OS specific information, used by the native_capability macro for
@@ -187,14 +187,7 @@ static class NativeCapability {
 	 * @return a provide capability clause for the native environment
 	 */
 	public static String getNativeCapabilityClause(Processor p, String args[]) throws Exception {
-		NativeCapability clause = new NativeCapability();
-
-		parseNativeCapabilityArgs(p, args, clause);
-
-		validateNativeCapability(clause);
-
-		Capability cap = createCapability(clause);
-
+		Capability cap = getNativeCapability(p, args);
 		return ResourceUtils.toProvideCapability(cap);
 	}
 
@@ -217,32 +210,9 @@ static void validateNativeCapability(NativeCapability clause) {
 			throw new IllegalArgumentException("processor/osgi.native.processor not set in ${native_capability}");
 	}
 
-	static void parseNativeCapabilityArgs(Processor p, String[] args, NativeCapability clause) throws Exception {
-		if (args.length == 1) {
-
-			OSInformation osi = new OSInformation();
-			clause.osname.addAll(Strings.split(osi.osnames));
-			clause.osversion = osi.osversion;
-			String[] processorAliases = getProcessorAliases(System.getProperty("os.arch"));
-			if (processorAliases != null && processorAliases.length > 0) {
-				Collections.addAll(clause.processor, processorAliases);
-			}
-			clause.language = Locale.getDefault()
-				.toString();
-
-			StringBuilder sb = new StringBuilder();
-			sb.append("osname=")
-				.append(System.getProperty("os.name"));
-			sb.append(";")
-				.append("osversion=")
-				.append(MavenVersion.cleanupVersion(System.getProperty("os.version")));
-			sb.append(";")
-				.append("processor=")
-				.append(System.getProperty("os.arch"));
-			sb.append(";")
-				.append("lang=")
-				.append(clause.language);
-			String advice = sb.toString();
+	static void parseNativeCapabilityArgs(Reporter p, String[] args, NativeCapability clause) throws Exception {
+		if (args.length <= 1) {
+			setDefaults(clause);
 		} else {
 
 			String osname = null;
@@ -321,6 +291,18 @@ static void parseNativeCapabilityArgs(Processor p, String[] args, NativeCapabili
 		}
 	}
 
+	private static void setDefaults(NativeCapability clause) {
+		OSInformation osi = new OSInformation();
+		clause.osname.addAll(Strings.split(osi.osnames));
+		clause.osversion = osi.osversion;
+		String[] processorAliases = getProcessorAliases(System.getProperty("os.arch"));
+		if (processorAliases != null && processorAliases.length > 0) {
+			Collections.addAll(clause.processor, processorAliases);
+		}
+		clause.language = Locale.getDefault()
+			.toString();
+	}
+
 	public static class OSNameVersion {
 		public Version	osversion;
 		public String	osnames;
@@ -370,4 +352,35 @@ public static OSNameVersion getOperatingSystemAliases(String sysPropOsName, Stri
 		}
 		return nc;
 	}
+
+	/**
+	 * Return a native capability based on the given specification.
+	 *
+	 * @param p the processor for the error reporting
+	 * @param args a set of assignments. The following keys are supported:
+	 *            osgi.native.processor,osname, osgi.native.osname,
+	 *            osversion,osgi.native.osversion, osgi.native.language, lang
+	 * @return a native capability
+	 */
+
+	public static Capability getNativeCapability(Reporter p, String... args) throws Exception {
+		NativeCapability clause = new NativeCapability();
+
+		parseNativeCapabilityArgs(p, args, clause);
+
+		validateNativeCapability(clause);
+
+		return createCapability(clause);
+	}
+
+	/**
+	 * Return the default capability for the current platform
+	 *
+	 * @return a default capability for the current platform
+	 */
+	public static Capability getDefaultNativeCapability() throws Exception {
+		NativeCapability clause = new NativeCapability();
+		setDefaults(clause);
+		return createCapability(clause);
+	}
 }

biz.aQute.resolve/src/biz/aQute/resolve/BndrunResolveContext.java

@@ -20,6 +20,7 @@
 import java.util.jar.Manifest;
 
 import org.osgi.framework.namespace.IdentityNamespace;
+import org.osgi.framework.namespace.NativeNamespace;
 import org.osgi.resource.Capability;
 import org.osgi.resource.Requirement;
 import org.osgi.resource.Resource;
@@ -38,6 +39,7 @@
 import aQute.bnd.osgi.Constants;
 import aQute.bnd.osgi.Domain;
 import aQute.bnd.osgi.Jar;
+import aQute.bnd.osgi.OSInformation;
 import aQute.bnd.osgi.Processor;
 import aQute.bnd.osgi.repository.AggregateRepository;
 import aQute.bnd.osgi.repository.AugmentRepository;
@@ -59,6 +61,8 @@
  * BndEditModel & Project
  */
 public class BndrunResolveContext extends AbstractResolveContext {
+	private static final String			ALWAYS_TRUE					= "(!(_+_foo=bar))";
+
 	private final static Logger			logger						= LoggerFactory
 		.getLogger(BndrunResolveContext.class);
 
@@ -226,6 +230,11 @@ public synchronized void init() {
 					loadPath(system, runpath, Constants.RUNPATH);
 			}
 
+			if (system.findCapabilities(NativeNamespace.NATIVE_NAMESPACE, ALWAYS_TRUE)
+				.isEmpty()) {
+				Capability cap = OSInformation.getDefaultNativeCapability();
+				system.addCapability(cap);
+			}
 			//
 			// We've not gathered all the capabilities of the system
 			// so we can create the resource and set it as the system resource

biz.aQute.resolve/src/biz/aQute/resolve/ProjectResolver.java

@@ -32,6 +32,8 @@
  * which is a Run which extends Project). This class is supposed to simplify the
  * sometimes bewildering number of moving cogs in resolving. It is a processor
  * and uses the facilities to provide the different logging schemes used.
+ * <p>
+ * See RunResolution for a replacement
  */
 
 @Deprecated

biz.aQute.resolve/test/biz/aQute/resolve/ResolveTest.java

@@ -124,6 +124,40 @@ public void testDefaultVersionsForJava() throws Exception {
 		}
 	}
 
+	/**
+	 * Check if we add a native capability when no native is around
+	 */
+
+	@Test
+	public void testDefaultNativeCapability() throws Exception {
+		try (Bndrun run = (Bndrun) Bndrun.createRun(null, IO.getFile("testdata/nativecap/native.bndrun"))) {
+			// require _any_ native capability
+			run.setProperty("-runrequires", "osgi.native;filter:=\"(osgi.native.osname=*)\"");
+			RunResolution resolve = run.resolve();
+			// only resolves when there was at least 1 native capability
+			assertThat(resolve.getRequired()).hasSize(1);
+		}
+
+	}
+
+	/**
+	 * Check if we do not add a native capability when no native is around
+	 */
+
+	@Test
+	public void testNoDefaultNativeCapability() throws Exception {
+		try (Bndrun run = (Bndrun) Bndrun.createRun(null, IO.getFile("testdata/nativecap/native.bndrun"))) {
+			// require _any_ native capability
+			run.setProperty("-runrequires", "osgi.native;filter:=\"(osgi.native.osname=*)\"");
+			// provide an invalid native capability so the previous filter does
+			// not match but we also do not add a capability
+			run.setProperty("-runsystemcapabilities", "osgi.native;foobar=1");
+			RunResolution resolve = run.resolve();
+			assertThat(resolve.getRequired()).isNull();
+		}
+
+	}
+
 	/**
 	 * The enRoute base guard resolved but is missing bundles, the runbundles do
 	 * not run