Move Tuscany from Incubator to top level.

git-svn-id: http://svn.us.apache.org/repos/asf/tuscany@668359 13f79535-47bb-0310-9956-ffa450edef68

1 files changed, 415 insertions, 0 deletions

diff --git a/java/sca/tools/maven/maven-incremental-build/src/main/java/org/apache/tuscany/sca/tools/incremental/build/plugin/IncrementalBuildMojo.java b/java/sca/tools/maven/maven-incremental-build/src/main/java/org/apache/tuscany/sca/tools/incremental/build/plugin/IncrementalBuildMojo.java
new file mode 100644
index 0000000000..3a6870732b
--- /dev/null
+++ b/java/sca/tools/maven/maven-incremental-build/src/main/java/org/apache/tuscany/sca/tools/incremental/build/plugin/IncrementalBuildMojo.java
@@ -0,0 +1,415 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+package org.apache.tuscany.sca.tools.incremental.build.plugin;
+
+import java.io.File;
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Set;
+
+import org.apache.maven.artifact.Artifact;
+import org.apache.maven.model.Resource;
+import org.apache.maven.plugin.AbstractMojo;
+import org.apache.maven.plugin.MojoExecutionException;
+import org.apache.maven.project.MavenProject;
+import org.apache.maven.settings.Settings;
+import org.apache.maven.shared.invoker.DefaultInvocationRequest;
+import org.apache.maven.shared.invoker.InvocationResult;
+import org.apache.maven.shared.invoker.Invoker;
+import org.apache.maven.shared.invoker.MavenInvocationException;
+import org.codehaus.plexus.util.DirectoryScanner;
+import org.codehaus.plexus.util.cli.CommandLineException;
+
+/**
+ * @version $Rev$ $Date$
+ * @goal build
+ * @phase validate
+ * @requiresDependencyResolution test
+ * @description Incrementally build project modules that depend on modified modules.
+ */
+public class IncrementalBuildMojo extends AbstractMojo {
+
+    /**
+     * Keep track of modified projects.
+     */
+    private static Set<String> modifiedProjectIDs = new HashSet<String>();
+
+    /**
+     * The current user system settings for use in Maven.
+     *
+     * @parameter expression="${settings}"
+     * @required
+     * @readonly
+     */
+    private Settings settings;
+    
+    /**
+     * Used to invoke Maven builds.
+     *
+     * @component
+     */
+    private Invoker invoker;
+
+    /**
+     * The target directory of the compiler if fork is true.
+     *
+     * @parameter expression="${project.build.directory}"
+     * @required
+     * @readonly
+     */
+    private File buildDirectory;
+
+    /**
+     * The project to create a build for.
+     *
+     * @parameter expression="${project}"
+     * @required
+     * @readonly
+     */
+    private MavenProject project;
+
+    private File outputFile;
+
+    public void execute() throws MojoExecutionException {
+        String projectID = id(project);
+        outputFile = getOutputFile();
+
+        File testMarkerFile = new File(project.getBasedir().getPath() + "/.test");
+        
+        List<String> goals = new ArrayList<String>();
+        String type = project.getArtifact().getType();
+        if ("pom".equals(type)) {
+            
+            // Always install pom modules
+            goals.add("install");
+
+        } else {
+
+            // Check if anything has changed in the project
+            boolean changed = false;
+            boolean testChanged = false;
+            boolean testFailed = false;
+            if (new File(project.getBasedir().getPath() + "/.modified").exists()) {
+                getLog().info("Found .modified marker file.");
+                changed = true;
+            } else {
+                changed = areSourcesStale() || areResourcesStale() || isPOMStale();
+            }
+            if (changed) {
+                modifiedProjectIDs.add(projectID);
+            } else {
+                testChanged = areTestSourcesStale() || areTestResourcesStale();
+            }
+            
+            // Check if a project has compile dependencies on the modified projects
+            // and will need to be recompiled, or has runtime or test dependencies
+            // on the modified projects and needs to be retested
+            if (changed) {
+                goals.add("clean");
+                goals.add("install");
+                getLog().info("Project " + projectID + " has changed and will be recompiled.");
+                
+            } else {
+                for (Artifact artifact : (List<Artifact>)project.getCompileArtifacts()) {
+                    String artifactID = id(artifact);
+                    if (modifiedProjectIDs.contains(artifactID)) {
+                        getLog().info("Project " + projectID + " depends on modified project " + artifactID + " and will be recompiled.");
+                        goals.add("clean");
+                        goals.add("install");
+                        break;
+                    }
+                }
+
+                if (goals.isEmpty()) {
+                    List<Artifact> artifacts = new ArrayList<Artifact>();
+                    artifacts.addAll(project.getRuntimeArtifacts());
+                    artifacts.addAll(project.getTestArtifacts());
+                    for (Artifact artifact : artifacts) {
+                        String artifactID = id(artifact);
+                        if (modifiedProjectIDs.contains(artifactID)) {
+                            getLog().info("Project " + projectID + " depends on modified project " + artifactID + " and will be retested.");
+                            goals.add("test");
+                            break;
+                        }
+                    }
+                }
+            }
+
+            if (testChanged && goals.isEmpty()) {
+                getLog().info("Project " + projectID + " has changed and will be retested.");
+                goals.add("test");
+            }
+
+            if (goals.isEmpty()) {
+                if (testMarkerFile.exists()) {
+                    testFailed = true;
+                    getLog().info("Project " + projectID + " contains failed tests and will be retested.");
+                    goals.add("test");
+                }
+            }
+        }
+
+        // Invoke Maven with the necessary goals
+        if (!goals.isEmpty()) {
+            DefaultInvocationRequest request = new DefaultInvocationRequest();
+            request.setGoals(goals);
+            // FIXME: The maven invoker doesn't handle the directory names with spaces
+            // request.setLocalRepositoryDirectory(new File(localRepository.getBasedir()));
+            request.setInteractive(false);
+            request.setShowErrors(false);
+            request.setRecursive(false);
+            // request.setDebug(true);
+            request.setOffline(settings.isOffline());
+            request.setBaseDirectory(project.getBasedir());
+            request.setPomFile(project.getFile());
+
+            boolean success = false;
+            try {
+                try {
+                    InvocationResult result = invoker.execute(request);
+    
+                    CommandLineException cle = result.getExecutionException();
+                    if (cle != null) {
+                        throw new MojoExecutionException(cle.getMessage(), cle);
+                    }
+    
+                    int ec = result.getExitCode();
+                    if (ec != 0) {
+                        throw new MojoExecutionException("Maven invocation exit code: " + ec);
+                    }
+                    
+                    success = true;
+                    
+                    
+                    
+                } catch (MavenInvocationException e) {
+                    throw new MojoExecutionException(e.getMessage(), e);
+                }
+            } finally {
+                
+                // Create or delete a .test marker file to keep track of the latest
+                // test result status and trigger testing again next time the build
+                // is run
+                if (!success) {
+                    try {
+                        if (!testMarkerFile.exists()) {
+                            testMarkerFile.createNewFile();
+                        }
+                    } catch (IOException e) {
+                        throw new MojoExecutionException(e.getMessage(), e);
+                    }
+                } else {
+                    if (testMarkerFile.exists()) {
+                        testMarkerFile.delete();
+                    }
+                }
+            }
+        } else {
+            getLog().info("The project is up-to-date. No build is required.");
+        }
+    }
+
+    private File getOutputFile() {
+        File basedir = buildDirectory;
+        String finalName = project.getBuild().getFinalName();
+        String classifier = project.getArtifact().getClassifier();
+        if (classifier == null) {
+            classifier = "";
+        } else if (classifier.trim().length() > 0 && !classifier.startsWith("-")) {
+            classifier = "-" + classifier;
+        }
+    
+        String pkg = project.getPackaging();
+        if ("maven-plugin".equals(pkg)) {
+            pkg = "jar";
+        }
+        return new File(basedir, finalName + classifier + "." + pkg);
+    }
+
+    /**
+     * Test if any of the resources are stale
+     * @param resources
+     * @param outputDirectory
+     * @return
+     * @throws MojoExecutionException
+     */
+    private boolean areStale(List<Resource> resources, String outputDirectory) throws MojoExecutionException {
+        
+        for (Resource resource: resources) {
+            
+            File resourceDirectory = new File(resource.getDirectory());
+            if (!resourceDirectory.exists()) {
+                continue;
+            }
+    
+            DirectoryScanner scanner = new DirectoryScanner();
+    
+            scanner.setBasedir(resource.getDirectory());
+            if (resource.getIncludes() != null && !resource.getIncludes().isEmpty()) {
+                scanner.setIncludes((String[])resource.getIncludes().toArray(new String[]{}));
+            } else {
+                scanner.setIncludes(new String[]{"**/**"});
+            }
+            if (resource.getExcludes() != null && !resource.getExcludes().isEmpty()) {
+                scanner.setExcludes((String[])resource.getExcludes().toArray(new String[]{}));
+            }
+
+            scanner.addDefaultExcludes();
+            scanner.scan();
+    
+            List<String> includedFiles = Arrays.asList(scanner.getIncludedFiles());
+            String targetPath = resource.getTargetPath();
+            for (String source: includedFiles) {
+                String target;
+                if (source.endsWith(".java")) {
+                    target = source.substring(0, source.length() - 5) + ".class";
+                } else {
+                    target = source;
+                }
+                
+                String destination;
+                if (targetPath != null) {
+                    destination = targetPath + "/" + target;
+                } else {
+                    destination = target;
+                }
+    
+                File sourceFile = new File(resource.getDirectory(), source);
+                File destinationFile = new File(outputDirectory, destination);
+                
+                if (!destinationFile.exists()) {
+                    getLog().info("Source file " + sourceFile + ".");
+                    getLog().info("Target file " + destinationFile + " could not be found.");
+                    return true;
+                } else {
+                    if (sourceFile.lastModified() > destinationFile.lastModified()) {
+                        getLog().info("Source file " + sourceFile + " has changed.");
+                        getLog().info("Target file " + destinationFile + " is stale.");
+                        return true;
+                    } else if (sourceFile.lastModified() > outputFile.lastModified()) {
+                        getLog().info("Source file " + sourceFile + " has changed.");
+                        getLog().info("Target build output file " + outputFile + " is stale.");
+                        return true;
+                    } else if (outputFile.lastModified() == 0) {
+                        getLog().info("Target build output file " + outputFile + " could not be found.");
+                        return true;
+                    }
+                }
+            }
+        }
+        return false;
+    }
+
+    /**
+     * Test if the POM resource is stale.
+     * 
+     * @return
+     */
+    private boolean isPOMStale() {
+        File pom = project.getFile();
+        if (pom.lastModified() > outputFile.lastModified()) {
+            getLog().info("File " + pom + " has changed.");
+            getLog().info("Target build output file " + pom + " is stale.");
+            return true;
+        } else if (outputFile.lastModified() == 0) {
+            getLog().info("Target build output file " + outputFile + " could not be found.");
+            return true;
+        } else {
+            return false;
+        }
+    }
+
+    /**
+     * Test if the project resources are stale.
+     * 
+     * @return
+     * @throws MojoExecutionException
+     */
+    private boolean areResourcesStale() throws MojoExecutionException {
+        return areStale(project.getResources(), project.getBuild().getOutputDirectory());
+    }
+
+    /**
+     * Test if the project sources are stale.
+     * 
+     * @return
+     * @throws MojoExecutionException
+     */
+    private boolean areSourcesStale() throws MojoExecutionException {
+        List<Resource> resources = new ArrayList<Resource>();
+        for (String root: (List<String>)project.getCompileSourceRoots()) {
+            if (new File(root).exists()) {
+                Resource resource = new Resource();
+                resource.setDirectory(root);
+                resource.addInclude("*.java");
+                resources.add(resource);
+            }
+        }
+        return areStale(resources, project.getBuild().getOutputDirectory());
+    }
+
+    /**
+     * Tests if the project test resources are stale.
+     * 
+     * @return
+     * @throws MojoExecutionException
+     */
+    private boolean areTestResourcesStale() throws MojoExecutionException {
+        return areStale(project.getTestResources(), project.getBuild().getTestOutputDirectory());
+    }
+
+    /**
+     * Tests if the project test sources are stale.
+     * 
+     * @return
+     * @throws MojoExecutionException
+     */
+    private boolean areTestSourcesStale() throws MojoExecutionException {
+        List<Resource> resources = new ArrayList<Resource>();
+        for (String root: (List<String>)project.getTestCompileSourceRoots()) {
+            if (new File(root).exists()) { 
+                Resource resource = new Resource();
+                resource.setDirectory(root);
+                resources.add(resource);
+            }
+        }
+        return areStale(resources, project.getBuild().getTestOutputDirectory());
+    }
+
+    /**
+     * Returns the qualified id of a Maven artifact .
+     * @param p a Maven artifact
+     * @return a qualified id
+     */
+    private static String id(Artifact a) {
+        return a.getGroupId() + ':' + a.getArtifactId();
+    }
+
+    /**
+     * Returns the qualified id of a Maven project.
+     * @param p a Maven project
+     * @return a qualified id
+     */
+    private static String id(MavenProject p) {
+        return p.getGroupId() + ':' + p.getArtifactId();
+    }
+}