tycho/tycho-use-custom-resolver.patch

From 15024de04671196ba229183993a50c3d0e5de0ad Mon Sep 17 00:00:00 2001
From: Roland Grunberg <rgrunber@redhat.com>
Date: Tue, 12 Jun 2012 10:38:51 -0400
Subject: [PATCH] Implement a custom resolver for Tycho in local mode.

When running in local mode, dependencies should be resolved by looking
on the local system. Remote repositories should be ignored unless
offline mode is disabled.

Automatically create a local p2 repository of all bundles on the system
so that they may be used for local dependency resolution. This is done
using a modified version of Eclipse's copy-platform script.

Since Fedora 17, we need an Execution Environment of at least JavaSE-1.6
for Eclipse bundles. Eclipse Juno platform bundles depend on
javax.annotation. In Fedora this is provided by geronimo-annotation, but
has a dependency on javax.lang.model (since 1.6).

Use the defined target environments in local mode when the property
tycho.local.keepTarget is set.

In situations where Tycho must resolve maven artifacts, upstream's
implementation only looks in the reactor cache. In Fedora, maven
artifacts may be located on the system using repository layouts
understood by XMvn. Therefore, when an artifact is not found in the
reactor cache, resolution should be attempted using the XMvn Resolver.

Change-Id: Ia1ece07ece2412bc4a88901631f3f651ad2b634b
---
 .../tycho/p2/target/TargetDefinitionResolver.java  | 11 +++--
 .../p2/target/TargetPlatformBundlePublisher.java   | 15 ++-----
 .../tycho/p2/target/TargetPlatformFactoryImpl.java | 50 +++++++++++++++++++---
 .../tycho/p2/repository/LocalRepositoryReader.java | 34 ++++++++++++++-
 .../facade/TargetPlatformConfigurationStub.java    |  5 ++-
 tycho-core/pom.xml                                 |  5 +++
 .../eclipse/tycho/core/locking/FileLockerImpl.java | 26 ++++++++---
 .../core/maven/TychoMavenLifecycleParticipant.java | 29 +++++++++++++
 .../tycho/core/osgitools/AbstractTychoProject.java | 24 +++++++++++
 .../tycho/core/osgitools/OsgiBundleProject.java    | 29 ++++++++++++-
 .../DefaultTargetPlatformConfigurationReader.java  |  6 ++-
 .../osgi/runtime/TychoOsgiRuntimeLocator.java      | 17 ++++++++
 .../p2/resolver/P2TargetPlatformResolver.java      | 10 +++++
 13 files changed, 231 insertions(+), 30 deletions(-)

diff --git a/tycho-bundles/org.eclipse.tycho.p2.resolver.impl/src/main/java/org/eclipse/tycho/p2/target/TargetDefinitionResolver.java b/tycho-bundles/org.eclipse.tycho.p2.resolver.impl/src/main/java/org/eclipse/tycho/p2/target/TargetDefinitionResolver.java
index b008768..77c1443 100644
--- a/tycho-bundles/org.eclipse.tycho.p2.resolver.impl/src/main/java/org/eclipse/tycho/p2/target/TargetDefinitionResolver.java
+++ b/tycho-bundles/org.eclipse.tycho.p2.resolver.impl/src/main/java/org/eclipse/tycho/p2/target/TargetDefinitionResolver.java
@@ -23,6 +23,7 @@ import org.eclipse.core.runtime.CoreException;
 import org.eclipse.core.runtime.IProgressMonitor;
 import org.eclipse.core.runtime.IStatus;
 import org.eclipse.core.runtime.NullProgressMonitor;
+import org.eclipse.core.runtime.URIUtil;
 import org.eclipse.equinox.p2.core.IProvisioningAgent;
 import org.eclipse.equinox.p2.core.ProvisionException;
 import org.eclipse.equinox.p2.metadata.IInstallableUnit;
@@ -115,9 +116,13 @@ public class TargetDefinitionResolver {
 
                 List<IMetadataRepository> metadataRepositories = new ArrayList<IMetadataRepository>();
                 for (Repository repository : iuLocationDefinition.getRepositories()) {
-                    repositoryIdManager.addMapping(repository.getId(), repository.getLocation());
-                    artifactRepositories.add(repository.getLocation());
-                    metadataRepositories.add(loadRepository(repository));
+                    // We cannot resolve a non-file URI in local mode
+                    if ((System.getProperty("TYCHO_MVN_LOCAL") == null && System.getProperty("TYCHO_MVN_RPMBUILD") == null)
+                            || URIUtil.isFileURI(repository.getLocation())) {
+                        repositoryIdManager.addMapping(repository.getId(), repository.getLocation());
+                        artifactRepositories.add(repository.getLocation());
+                        metadataRepositories.add(loadRepository(repository));
+                    }
                 }
 
                 IQueryable<IInstallableUnit> locationUnits = new CompoundQueryable<IInstallableUnit>(
diff --git a/tycho-bundles/org.eclipse.tycho.p2.resolver.impl/src/main/java/org/eclipse/tycho/p2/target/TargetPlatformBundlePublisher.java b/tycho-bundles/org.eclipse.tycho.p2.resolver.impl/src/main/java/org/eclipse/tycho/p2/target/TargetPlatformBundlePublisher.java
index 5d6bc1f..8281167 100644
--- a/tycho-bundles/org.eclipse.tycho.p2.resolver.impl/src/main/java/org/eclipse/tycho/p2/target/TargetPlatformBundlePublisher.java
+++ b/tycho-bundles/org.eclipse.tycho.p2.resolver.impl/src/main/java/org/eclipse/tycho/p2/target/TargetPlatformBundlePublisher.java
@@ -28,6 +28,7 @@ import org.eclipse.tycho.core.facade.MavenLogger;
 import org.eclipse.tycho.p2.impl.publisher.MavenPropertiesAdvice;
 import org.eclipse.tycho.p2.impl.publisher.repo.TransientArtifactRepository;
 import org.eclipse.tycho.p2.metadata.IArtifactFacade;
+import org.eclipse.tycho.p2.repository.LocalRepositoryReader;
 import org.eclipse.tycho.p2.repository.MavenRepositoryCoordinates;
 import org.eclipse.tycho.repository.local.GAVArtifactDescriptor;
 import org.eclipse.tycho.repository.p2base.artifact.provider.IRawArtifactFileProvider;
@@ -218,15 +219,6 @@ public class TargetPlatformBundlePublisher {
             GAVArtifactDescriptor descriptorForRepository = new GAVArtifactDescriptor(baseDescriptor,
                     repositoryCoordinates);
 
-            File requiredArtifactLocation = new File(getBaseDir(), descriptorForRepository.getMavenCoordinates()
-                    .getLocalRepositoryPath());
-            File actualArtifactLocation = mavenArtifact.getLocation();
-            if (!equivalentPaths(requiredArtifactLocation, actualArtifactLocation)) {
-                throw new AssertionFailedException(
-                        "The Maven artifact to be added to the target platform is not stored at the required location on disk: required \""
-                                + requiredArtifactLocation + "\" but was \"" + actualArtifactLocation + "\"");
-            }
-
             internalAddInternalDescriptor(descriptorForRepository);
         }
 
@@ -259,8 +251,9 @@ public class TargetPlatformBundlePublisher {
 
         @Override
         protected File internalGetArtifactStorageLocation(IArtifactDescriptor descriptor) {
-            String relativePath = toInternalDescriptor(descriptor).getMavenCoordinates().getLocalRepositoryPath();
-            return new File(getBaseDir(), relativePath);
+            MavenRepositoryCoordinates coord = toInternalDescriptor(descriptor).getMavenCoordinates();
+            LocalRepositoryReader reader = new LocalRepositoryReader(getBaseDir());
+            return reader.getLocalArtifactLocation(coord.getGav(), coord.getClassifier(), coord.getExtensionOrDefault());
         }
 
         private File getBaseDir() {
diff --git a/tycho-bundles/org.eclipse.tycho.p2.resolver.impl/src/main/java/org/eclipse/tycho/p2/target/TargetPlatformFactoryImpl.java b/tycho-bundles/org.eclipse.tycho.p2.resolver.impl/src/main/java/org/eclipse/tycho/p2/target/TargetPlatformFactoryImpl.java
index 4677798..4ee3fb5 100644
--- a/tycho-bundles/org.eclipse.tycho.p2.resolver.impl/src/main/java/org/eclipse/tycho/p2/target/TargetPlatformFactoryImpl.java
+++ b/tycho-bundles/org.eclipse.tycho.p2.resolver.impl/src/main/java/org/eclipse/tycho/p2/target/TargetPlatformFactoryImpl.java
@@ -30,6 +30,9 @@ import org.eclipse.core.runtime.URIUtil;
 import org.eclipse.equinox.p2.core.IProvisioningAgent;
 import org.eclipse.equinox.p2.core.ProvisionException;
 import org.eclipse.equinox.p2.metadata.IInstallableUnit;
+import org.eclipse.equinox.p2.metadata.expression.ExpressionUtil;
+import org.eclipse.equinox.p2.metadata.expression.IExpression;
+import org.eclipse.equinox.p2.query.IQuery;
 import org.eclipse.equinox.p2.query.IQueryResult;
 import org.eclipse.equinox.p2.query.QueryUtil;
 import org.eclipse.equinox.p2.repository.artifact.IArtifactRepositoryManager;
@@ -271,12 +274,49 @@ public class TargetPlatformFactoryImpl implements TargetPlatformFactory {
             metadataRepositories.add(localMetadataRepository);
         }
 
-        SubMonitor sub = SubMonitor.convert(monitor, metadataRepositories.size() * 200);
-        for (IMetadataRepository repository : metadataRepositories) {
-            IQueryResult<IInstallableUnit> matches = repository.query(QueryUtil.ALL_UNITS, sub.newChild(100));
-            result.addAll(matches.toUnmodifiableSet());
+        if (System.getProperty("TYCHO_MVN_LOCAL") != null) {
+            final String uri = "file:" + System.getProperty("user.dir") + "/.m2/p2/repo";
+            final IExpression notmatchIU_ID = ExpressionUtil.parse("id != $0");
+            IMetadataRepository systemLocalP2Repo = null;
+
+            // Sanity check even though the repo we want should be at index 1
+            for (IMetadataRepository repository : metadataRepositories) {
+                if (repository.getLocation().toString().equals(uri)) {
+                    systemLocalP2Repo = repository;
+                    break;
+                }
+            }
+
+            IQuery<IInstallableUnit> noLocalIUs = QueryUtil.createIUAnyQuery();
+
+            // Create a conjunction query that negates all IUs on the local system
+            for (IInstallableUnit unit : systemLocalP2Repo.query(QueryUtil.ALL_UNITS, null).toUnmodifiableSet()) {
+                noLocalIUs = QueryUtil.createCompoundQuery(noLocalIUs,
+                        QueryUtil.createMatchQuery(notmatchIU_ID, unit.getId()), true);
+            }
+
+            SubMonitor sub = SubMonitor.convert(monitor, metadataRepositories.size() * 200);
+            for (IMetadataRepository repository : metadataRepositories) {
+                IQueryResult<IInstallableUnit> matches;
+                if (repository.getLocation().toString().equals(uri)) {
+                    matches = repository.query(QueryUtil.ALL_UNITS, sub.newChild(100));
+                } else {
+                    // Don't collect any remote IUs that can be found on the system
+                    // This will favour IUs in the system local p2 repository
+                    matches = repository.query(noLocalIUs, sub.newChild(100));
+                }
+                result.addAll(matches.toUnmodifiableSet());
+            }
+            sub.done();
+        } else {
+            SubMonitor sub = SubMonitor.convert(monitor, metadataRepositories.size() * 200);
+            for (IMetadataRepository repository : metadataRepositories) {
+                IQueryResult<IInstallableUnit> matches = repository.query(QueryUtil.ALL_UNITS, sub.newChild(100));
+                matches = repository.query(QueryUtil.ALL_UNITS, sub.newChild(100));
+                result.addAll(matches.toUnmodifiableSet());
+            }
+            sub.done();
         }
-        sub.done();
 
         if (includeLocalMavenRepo && logger.isDebugEnabled()) {
             IQueryResult<IInstallableUnit> locallyInstalledIUs = localMetadataRepository.query(QueryUtil.ALL_UNITS,
diff --git a/tycho-bundles/org.eclipse.tycho.p2.resolver.shared/src/main/java/org/eclipse/tycho/p2/repository/LocalRepositoryReader.java b/tycho-bundles/org.eclipse.tycho.p2.resolver.shared/src/main/java/org/eclipse/tycho/p2/repository/LocalRepositoryReader.java
index 8d36462..be9172c 100644
--- a/tycho-bundles/org.eclipse.tycho.p2.resolver.shared/src/main/java/org/eclipse/tycho/p2/repository/LocalRepositoryReader.java
+++ b/tycho-bundles/org.eclipse.tycho.p2.resolver.shared/src/main/java/org/eclipse/tycho/p2/repository/LocalRepositoryReader.java
@@ -11,6 +11,8 @@
 package org.eclipse.tycho.p2.repository;
 
 import java.io.File;
+import java.lang.reflect.Constructor;
+import java.lang.reflect.Method;
 
 public class LocalRepositoryReader implements RepositoryReader {
 
@@ -21,7 +23,35 @@ public class LocalRepositoryReader implements RepositoryReader {
     }
 
     public File getLocalArtifactLocation(GAV gav, String classifier, String extension) {
-        return new File(localMavenRepositoryRoot, RepositoryLayoutHelper.getRelativePath(gav, classifier, extension));
-    }
+        File file = new File(localMavenRepositoryRoot, RepositoryLayoutHelper.getRelativePath(gav, classifier, extension));
+        // In Fedora the artifact may be in an XMvn-defined repository location (not in reactor cache)
+        if (!file.exists()) {
+            try {
+                // Use plexus container to lookup the reader
+                Class pclazz = Class.forName("org.codehaus.plexus.DefaultPlexusContainer");
+                Object plexus = pclazz.newInstance();
+
+                // Retrieve the workspace reader from the plexus container
+                Method mLookup = pclazz.getMethod("lookup", String.class);
+                Object reader = mLookup.invoke(plexus, "org.eclipse.aether.repository.WorkspaceReader");
+
+                // Create an Aether Artifact based on GAV, classifier, and extension
+                Class iartclazz = Class.forName("org.eclipse.aether.artifact.Artifact");
+                Class artclazz = Class.forName("org.eclipse.aether.artifact.DefaultArtifact");
+                Constructor cNew = artclazz.getConstructor(String.class, String.class, String.class, String.class, String.class);
+                Object artifact = cNew.newInstance(gav.getGroupId(), gav.getArtifactId(), classifier, extension, gav.getVersion());
 
+                // Invoke "findArtifact" method of the workspace reader on the artifact
+                Method mfindArtifact = reader.getClass().getMethod("findArtifact", iartclazz);
+                File newFile = (File) mfindArtifact.invoke(reader, artifact);
+                if (newFile != null) {
+                    file = newFile;
+                }
+            } catch (Exception e) {
+                e.printStackTrace();
+            }
+        }
+        return file;
+
+    }
 }
diff --git a/tycho-bundles/org.eclipse.tycho.p2.resolver.shared/src/main/java/org/eclipse/tycho/p2/target/facade/TargetPlatformConfigurationStub.java b/tycho-bundles/org.eclipse.tycho.p2.resolver.shared/src/main/java/org/eclipse/tycho/p2/target/facade/TargetPlatformConfigurationStub.java
index 0be3e6f..3fecf39 100644
--- a/tycho-bundles/org.eclipse.tycho.p2.resolver.shared/src/main/java/org/eclipse/tycho/p2/target/facade/TargetPlatformConfigurationStub.java
+++ b/tycho-bundles/org.eclipse.tycho.p2.resolver.shared/src/main/java/org/eclipse/tycho/p2/target/facade/TargetPlatformConfigurationStub.java
@@ -58,7 +58,10 @@ public class TargetPlatformConfigurationStub {
     }
 
     public void addP2Repository(MavenRepositoryLocation location) {
-        this.repositories.add(location);
+        // We cannot resolve a non-file URI in local mode while offline
+        if (System.getProperty("TYCHO_MVN_RPMBUILD") == null || "file".equalsIgnoreCase(location.getURL().getScheme())) {
+            this.repositories.add(location);
+        }
     }
 
     // convenience method for tests
diff --git a/tycho-core/pom.xml b/tycho-core/pom.xml
index 853bcf4..b29017f 100644
--- a/tycho-core/pom.xml
+++ b/tycho-core/pom.xml
@@ -146,6 +146,11 @@
 			<artifactId>org.eclipse.tycho.core.shared</artifactId>
 			<version>${project.version}</version>
 		</dependency>
+		<dependency>
+			<groupId>org.fedoraproject.xmvn</groupId>
+			<artifactId>xmvn-connector</artifactId>
+			<version>1.1.0</version>
+		</dependency>
 
 		<dependency>
 			<groupId>org.eclipse.tycho</groupId>
diff --git a/tycho-core/src/main/java/org/eclipse/tycho/core/locking/FileLockerImpl.java b/tycho-core/src/main/java/org/eclipse/tycho/core/locking/FileLockerImpl.java
index 86253bd..cef15d2 100644
--- a/tycho-core/src/main/java/org/eclipse/tycho/core/locking/FileLockerImpl.java
+++ b/tycho-core/src/main/java/org/eclipse/tycho/core/locking/FileLockerImpl.java
@@ -27,22 +27,36 @@ public class FileLockerImpl implements FileLocker {
     final File lockMarkerFile;
 
     public FileLockerImpl(File file, Location anyLocation) {
+        File lockFileCandidate = null;
         try {
             if (file.isDirectory()) {
-                this.lockMarkerFile = new File(file, LOCKFILE_SUFFIX).getCanonicalFile();
+                lockFileCandidate = new File(file, LOCKFILE_SUFFIX).getCanonicalFile();
             } else {
-                this.lockMarkerFile = new File(file.getParentFile(), file.getName() + LOCKFILE_SUFFIX)
-                        .getCanonicalFile();
+                lockFileCandidate = new File(file.getParentFile(), file.getName() + LOCKFILE_SUFFIX).getCanonicalFile();
             }
-            if (lockMarkerFile.isDirectory()) {
-                throw new RuntimeException("Lock marker file " + lockMarkerFile + " already exists and is a directory");
+
+            if (lockFileCandidate.isDirectory()) {
+                throw new RuntimeException("Lock marker file " + lockFileCandidate + " already exists and is a directory");
             }
-            File parentDir = lockMarkerFile.getParentFile();
+            File parentDir = lockFileCandidate.getParentFile();
             if (!parentDir.isDirectory() && !parentDir.mkdirs()) {
                 throw new RuntimeException("Could not create parent directory " + parentDir + " of lock marker file");
             }
+
+            String baseDir = System.getProperty("user.dir");
+            String reactorCache = baseDir + "/.m2/";
+            // In Fedora we can only assume reactor cache is safe for read/write.
+            if (!lockFileCandidate.getAbsolutePath().startsWith(reactorCache)) {
+                String lockFileDir = reactorCache + LOCKFILE_SUFFIX;
+                // If the file is located within baseDir, no need to repeat
+                String lockFileName = file.getAbsolutePath().replace(baseDir, "").replace("/", "-").replaceFirst("-", "/") + LOCKFILE_SUFFIX;
+                lockFileCandidate = new File(lockFileDir, lockFileName);
+            }
+
+            this.lockMarkerFile = lockFileCandidate;
             this.lockFileLocation = anyLocation.createLocation(null, null, false);
             this.lockFileLocation.set(lockMarkerFile.toURL(), false, lockMarkerFile.getAbsolutePath());
+
         } catch (MalformedURLException e) {
             throw new RuntimeException(e);
         } catch (IOException e) {
diff --git a/tycho-core/src/main/java/org/eclipse/tycho/core/maven/TychoMavenLifecycleParticipant.java b/tycho-core/src/main/java/org/eclipse/tycho/core/maven/TychoMavenLifecycleParticipant.java
index d003619..0e08d3f 100644
--- a/tycho-core/src/main/java/org/eclipse/tycho/core/maven/TychoMavenLifecycleParticipant.java
+++ b/tycho-core/src/main/java/org/eclipse/tycho/core/maven/TychoMavenLifecycleParticipant.java
@@ -11,6 +11,7 @@
 package org.eclipse.tycho.core.maven;
 
 import java.io.File;
+import java.io.IOException;
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.Collections;
@@ -29,6 +30,7 @@ import org.apache.maven.project.MavenProject;
 import org.codehaus.plexus.PlexusContainer;
 import org.codehaus.plexus.component.annotations.Component;
 import org.codehaus.plexus.component.annotations.Requirement;
+import org.codehaus.plexus.component.repository.exception.ComponentLookupException;
 import org.codehaus.plexus.logging.Logger;
 import org.eclipse.tycho.ReactorProject;
 import org.eclipse.tycho.core.osgitools.BundleReader;
@@ -66,6 +68,33 @@ public class TychoMavenLifecycleParticipant extends AbstractMavenLifecyclePartic
         validate(projects);
         configureComponents(session);
 
+        try {
+            if (plexus.lookup("org.fedoraproject.maven.resolver.Resolver") != null) {
+                if (session.isOffline()) {
+                    System.setProperty("TYCHO_MVN_RPMBUILD", "");
+                } else {
+                    System.setProperty("TYCHO_MVN_LOCAL", "");
+                }
+            }
+        } catch (ComponentLookupException e) {
+            // No XMvn (Upstream Maven in use)
+        }
+
+        // Create a system p2 repository for local dependency resolution
+        if (System.getProperty("TYCHO_MVN_LOCAL") != null || System.getProperty("TYCHO_MVN_RPMBUILD") != null) {
+            try {
+                String[] cmd = new String[] { "/usr/share/java/tycho/copy-platform-all",
+                        System.getProperty("user.dir") + "/.m2/p2/repo" };
+                System.out.println("Building system local p2 repository...");
+                Process p = Runtime.getRuntime().exec(cmd);
+                p.waitFor();
+            } catch (IOException e) {
+                // Continue
+            } catch (InterruptedException e) {
+                // Continue
+            }
+        }
+
         for (MavenProject project : projects) {
             resolver.setupProject(session, project, DefaultReactorProject.adapt(project));
         }
diff --git a/tycho-core/src/main/java/org/eclipse/tycho/core/osgitools/AbstractTychoProject.java b/tycho-core/src/main/java/org/eclipse/tycho/core/osgitools/AbstractTychoProject.java
index 695133d..542a0f7 100644
--- a/tycho-core/src/main/java/org/eclipse/tycho/core/osgitools/AbstractTychoProject.java
+++ b/tycho-core/src/main/java/org/eclipse/tycho/core/osgitools/AbstractTychoProject.java
@@ -20,6 +20,9 @@ import org.eclipse.tycho.artifacts.TargetPlatform;
 import org.eclipse.tycho.core.TargetPlatformConfiguration;
 import org.eclipse.tycho.core.TychoConstants;
 import org.eclipse.tycho.core.TychoProject;
+import org.eclipse.tycho.core.ee.ExecutionEnvironmentUtils;
+import org.eclipse.tycho.core.ee.UnknownEnvironmentException;
+import org.eclipse.tycho.core.ee.shared.ExecutionEnvironment;
 import org.eclipse.tycho.core.ee.shared.ExecutionEnvironmentConfiguration;
 import org.eclipse.tycho.core.facade.TargetEnvironment;
 import org.eclipse.tycho.core.osgitools.targetplatform.LocalTargetPlatformResolver;
@@ -92,17 +95,38 @@ public abstract class AbstractTychoProject extends AbstractLogEnabled implements
 
         String configuredForcedProfile = tpConfiguration.getExecutionEnvironment();
         if (configuredForcedProfile != null) {
+            configuredForcedProfile = overrideToAtLeastJavaSE16(configuredForcedProfile);
             sink.overrideProfileConfiguration(configuredForcedProfile,
                     "target-platform-configuration <executionEnvironment>");
         }
 
         String configuredDefaultProfile = tpConfiguration.getExecutionEnvironmentDefault();
         if (configuredDefaultProfile != null) {
+            configuredDefaultProfile = overrideToAtLeastJavaSE16(configuredDefaultProfile);
             sink.setProfileConfiguration(configuredDefaultProfile,
                     "target-platform-configuration <executionEnvironmentDefault>");
         }
     }
 
+    public String overrideToAtLeastJavaSE16 (String profile) {
+        try {
+            ExecutionEnvironment ee = ExecutionEnvironmentUtils.getExecutionEnvironment(profile);
+
+            if (System.getProperty("TYCHO_MVN_LOCAL") != null || System.getProperty("TYCHO_MVN_RPMBUILD") != null) {
+                // EE must be at least JavaSE-1.6
+                final ExecutionEnvironment javaSE16 = ExecutionEnvironmentUtils.getExecutionEnvironment("JavaSE-1.6");
+                if (! ee.isCompatibleCompilerTargetLevel(javaSE16.getCompilerTargetLevelDefault())) {
+                    ee = javaSE16;
+                }
+            }
+
+            return ee.getProfileName();
+        } catch (UnknownEnvironmentException e) {
+            // can't happen, ee is validated during configuration parsing
+            return null;
+        }
+    }
+
     public TargetPlatform getTargetPlatform(MavenProject project) {
         return (TargetPlatform) project.getContextValue(TychoConstants.CTX_TARGET_PLATFORM);
     }
diff --git a/tycho-core/src/main/java/org/eclipse/tycho/core/osgitools/OsgiBundleProject.java b/tycho-core/src/main/java/org/eclipse/tycho/core/osgitools/OsgiBundleProject.java
index 57c9fcc..aa1cc83 100644
--- a/tycho-core/src/main/java/org/eclipse/tycho/core/osgitools/OsgiBundleProject.java
+++ b/tycho-core/src/main/java/org/eclipse/tycho/core/osgitools/OsgiBundleProject.java
@@ -45,7 +45,9 @@ import org.eclipse.tycho.core.BundleProject;
 import org.eclipse.tycho.core.PluginDescription;
 import org.eclipse.tycho.core.TychoConstants;
 import org.eclipse.tycho.core.TychoProject;
+import org.eclipse.tycho.core.ee.ExecutionEnvironmentUtils;
 import org.eclipse.tycho.core.ee.StandardExecutionEnvironment;
+import org.eclipse.tycho.core.ee.UnknownEnvironmentException;
 import org.eclipse.tycho.core.ee.shared.ExecutionEnvironment;
 import org.eclipse.tycho.core.ee.shared.ExecutionEnvironmentConfiguration;
 import org.eclipse.tycho.core.facade.BuildPropertiesParser;
@@ -493,6 +495,7 @@ public class OsgiBundleProject extends AbstractTychoProject implements BundlePro
         String pdeProfile = getEclipsePluginProject(DefaultReactorProject.adapt(project)).getBuildProperties()
                 .getJreCompilationProfile();
         if (pdeProfile != null) {
+            pdeProfile = overrideToAtLeastJavaSE16(pdeProfile);
             sink.setProfileConfiguration(pdeProfile.trim(), "build.properties");
 
         } else {
@@ -510,7 +513,31 @@ public class OsgiBundleProject extends AbstractTychoProject implements BundlePro
         if (envs.isEmpty()) {
             return null;
         }
-        return Collections.min(envs);
+
+        ExecutionEnvironment manifestMinimalEE = Collections.min(envs);
+        ExecutionEnvironment tmp;
+
+        if (System.getProperty("TYCHO_MVN_LOCAL") != null || System.getProperty("TYCHO_MVN_RPMBUILD") != null) {
+            try {
+                // EE must be at least JavaSE-1.6
+                final ExecutionEnvironment javaSE16 = ExecutionEnvironmentUtils.getExecutionEnvironment("JavaSE-1.6");
+                while (!envs.isEmpty()) {
+                    tmp = Collections.min(envs);
+                    if (tmp.isCompatibleCompilerTargetLevel(javaSE16.getCompilerTargetLevelDefault())) {
+                        manifestMinimalEE = tmp;
+                        break;
+                    }
+                    envs.remove(tmp);
+                }
+
+                if (envs.isEmpty()) {
+                    return javaSE16;
+                }
+            } catch (UnknownEnvironmentException e) {
+                // Continue
+            }
+        }
+        return manifestMinimalEE;
     }
 
 }
diff --git a/tycho-core/src/main/java/org/eclipse/tycho/core/resolver/DefaultTargetPlatformConfigurationReader.java b/tycho-core/src/main/java/org/eclipse/tycho/core/resolver/DefaultTargetPlatformConfigurationReader.java
index ed0d75a..8e39e3c 100644
--- a/tycho-core/src/main/java/org/eclipse/tycho/core/resolver/DefaultTargetPlatformConfigurationReader.java
+++ b/tycho-core/src/main/java/org/eclipse/tycho/core/resolver/DefaultTargetPlatformConfigurationReader.java
@@ -64,7 +64,11 @@ public class DefaultTargetPlatformConfigurationReader {
                             + configuration.toString());
                 }
 
-                addTargetEnvironments(result, project, configuration);
+                // Use the defined environments only in local mode with tycho.local.keepTarget
+                if ((System.getProperty("TYCHO_MVN_LOCAL") == null && System.getProperty("TYCHO_MVN_RPMBUILD") == null)
+                        || System.getProperty("tycho.local.keepTarget") != null) {
+                    addTargetEnvironments(result, project, configuration);
+                }
 
                 setTargetPlatformResolver(result, configuration);
 
diff --git a/tycho-core/src/main/java/org/eclipse/tycho/osgi/runtime/TychoOsgiRuntimeLocator.java b/tycho-core/src/main/java/org/eclipse/tycho/osgi/runtime/TychoOsgiRuntimeLocator.java
index 1e878e5..d56e395 100644
--- a/tycho-core/src/main/java/org/eclipse/tycho/osgi/runtime/TychoOsgiRuntimeLocator.java
+++ b/tycho-core/src/main/java/org/eclipse/tycho/osgi/runtime/TychoOsgiRuntimeLocator.java
@@ -38,6 +38,8 @@ import org.eclipse.sisu.equinox.embedder.EquinoxRuntimeLocator;
 import org.eclipse.tycho.dev.DevWorkspaceResolver;
 import org.eclipse.tycho.locking.facade.FileLockService;
 import org.eclipse.tycho.locking.facade.FileLocker;
+import org.eclipse.aether.artifact.DefaultArtifact;
+import org.eclipse.aether.repository.WorkspaceReader;
 
 /**
  * Implementation of {@link org.eclipse.sisu.equinox.embedder.EquinoxRuntimeLocator} for Tycho's
@@ -94,6 +96,9 @@ public class TychoOsgiRuntimeLocator implements EquinoxRuntimeLocator {
     @Requirement
     private DevWorkspaceResolver workspaceState;
 
+    @Requirement(hint = "ide")
+    private WorkspaceReader workspaceReader;
+
     public void locateRuntime(EquinoxRuntimeDescription description) throws MavenExecutionException {
         WorkspaceTychoOsgiRuntimeLocator workspaceLocator = WorkspaceTychoOsgiRuntimeLocator
                 .getResolver(this.workspaceState);
@@ -201,6 +206,18 @@ public class TychoOsgiRuntimeLocator implements EquinoxRuntimeLocator {
         Artifact artifact = repositorySystem.createArtifact(dependency.getGroupId(), dependency.getArtifactId(),
                 dependency.getVersion(), dependency.getType());
 
+        if (workspaceReader != null) {
+            DefaultArtifact newArtifact = new DefaultArtifact(artifact.getGroupId()
+                    + ":" + artifact.getArtifactId()
+                    + ":" + artifact.getType()
+                    + ":" + artifact.getVersion());
+
+            File artifactFile = workspaceReader.findArtifact(newArtifact);
+            if (artifactFile != null) {
+                artifact.setFile(artifactFile);
+            }
+        }
+
         ArtifactResolutionRequest request = new ArtifactResolutionRequest();
         request.setArtifact(artifact);
         request.setResolveRoot(true).setResolveTransitively(false);
diff --git a/tycho-p2/tycho-p2-facade/src/main/java/org/eclipse/tycho/p2/resolver/P2TargetPlatformResolver.java b/tycho-p2/tycho-p2-facade/src/main/java/org/eclipse/tycho/p2/resolver/P2TargetPlatformResolver.java
index 5150a19..d0e1e68 100644
--- a/tycho-p2/tycho-p2-facade/src/main/java/org/eclipse/tycho/p2/resolver/P2TargetPlatformResolver.java
+++ b/tycho-p2/tycho-p2-facade/src/main/java/org/eclipse/tycho/p2/resolver/P2TargetPlatformResolver.java
@@ -201,6 +201,16 @@ public class P2TargetPlatformResolver extends AbstractTargetPlatformResolver imp
             pomDependencies.setProjectLocation(project.getBasedir());
         }
 
+        // Add Fedora Local P2 Repository when running in local mode
+        if (System.getProperty("TYCHO_MVN_LOCAL") != null || System.getProperty("TYCHO_MVN_RPMBUILD") != null) {
+            String uri = "file:" + System.getProperty("user.dir") + "/.m2/p2/repo";
+            try {
+                tpConfiguration.addP2Repository(new MavenRepositoryLocation(uri, new URI(uri)));
+            } catch (URISyntaxException e) {
+                getLogger().warn("Unable to resolve repository URI : " + uri, e);
+            }
+        }
+
         for (ArtifactRepository repository : project.getRemoteArtifactRepositories()) {
             addEntireP2RepositoryToTargetPlatform(repository, tpConfiguration, session);
         }
-- 
1.8.3.1