o Initial import of classpath mojo.

4 files changed, 217 insertions, 0 deletions

diff --git a/.gitattributes b/.gitattributes
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+++ b/.gitattributes
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+# Default behaviour, in case users don't have core.autocrlf set
+*		text=auto
+
+# Explicitly declare text files we want to always be normalized and
+# converted to native line endings on checkout
+*.java		text
+*.properties	text
+*.xml		text
+*.css		text
+*.js		text
+*.html		text
+
+
+# shell scripts must always use lf
+*.sh	text	eol=lf
+
+
+# binary files, should never be modified
+*.png		binary
+*.jpg		binary
+*.pdf		binary
+*.jar		binary
diff --git a/.gitignore b/.gitignore
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+++ b/.gitignore
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+target
+.idea
+*.iml
diff --git a/pom.xml b/pom.xml
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+++ b/pom.xml
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+<project>
+  <modelVersion>4.0.0</modelVersion>
+  <parent>
+    <groupId>io.trygvis</groupId>
+    <artifactId>trygvis-parent</artifactId>
+    <version>1</version>
+  </parent>
+  <groupId>io.trygvis.maven</groupId>
+  <artifactId>classpath-maven-plugin</artifactId>
+  <version>1.0-SNAPSHOT</version>
+  <packaging>maven-plugin</packaging>
+  <properties>
+    <maven.compiler.source>1.5</maven.compiler.source>
+    <maven.compiler.target>1.5</maven.compiler.target>
+    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+  </properties>
+  <dependencies>
+    <dependency>
+      <groupId>org.apache.maven</groupId>
+      <artifactId>maven-plugin-api</artifactId>
+      <version>3.0</version>
+    </dependency>
+    <dependency>
+      <groupId>org.apache.maven</groupId>
+      <artifactId>maven-core</artifactId>
+      <version>3.0</version>
+    </dependency>
+    <dependency>
+      <groupId>org.apache.maven.plugin-tools</groupId>
+      <artifactId>maven-plugin-annotations</artifactId>
+      <version>3.1</version>
+      <scope>provided</scope>
+    </dependency>
+    <dependency>
+      <groupId>org.sonatype.plexus</groupId>
+      <artifactId>plexus-build-api</artifactId>
+      <version>0.0.7</version>
+    </dependency>
+  </dependencies>
+  <build>
+    <plugins>
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-plugin-plugin</artifactId>
+        <version>3.2</version>
+        <configuration>
+          <skipErrorNoDescriptorsFound>true</skipErrorNoDescriptorsFound>
+        </configuration>
+        <executions>
+          <execution>
+            <id>mojo-descriptor</id>
+            <goals>
+              <goal>descriptor</goal>
+            </goals>
+          </execution>
+          <execution>
+            <id>help-goal</id>
+            <goals>
+              <goal>helpmojo</goal>
+            </goals>
+          </execution>
+        </executions>
+      </plugin>
+    </plugins>
+  </build>
+</project>
+
diff --git a/src/main/java/io/trygvis/maven/classpath/ClasspathMojo.java b/src/main/java/io/trygvis/maven/classpath/ClasspathMojo.java
new file mode 100755
index 0000000..4cc8d39
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+++ b/src/main/java/io/trygvis/maven/classpath/ClasspathMojo.java
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+package io.trygvis.maven.classpath;
+
+import static java.util.Collections.singletonList;
+import static java.util.Collections.sort;
+import static org.apache.maven.plugins.annotations.LifecyclePhase.GENERATE_RESOURCES;
+import static org.apache.maven.plugins.annotations.ResolutionScope.RUNTIME;
+
+import java.io.File;
+import java.io.IOException;
+import java.io.OutputStream;
+import java.io.OutputStreamWriter;
+import java.io.PrintWriter;
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.List;
+
+import org.apache.maven.artifact.Artifact;
+import org.apache.maven.artifact.repository.layout.ArtifactRepositoryLayout;
+import org.apache.maven.artifact.repository.layout.DefaultRepositoryLayout;
+import org.apache.maven.model.Resource;
+import org.apache.maven.plugin.AbstractMojo;
+import org.apache.maven.plugin.MojoExecutionException;
+import org.apache.maven.plugin.MojoFailureException;
+import org.apache.maven.plugins.annotations.Component;
+import org.apache.maven.plugins.annotations.Mojo;
+import org.apache.maven.plugins.annotations.Parameter;
+import org.apache.maven.project.MavenProject;
+import org.codehaus.plexus.util.IOUtil;
+import org.sonatype.plexus.build.incremental.BuildContext;
+
+/**
+ * Writes the path of each compile/runtime dependency of a project to a file,
+ * where each path is relative to the root of a maven repository.
+ * <p>
+ * For example, if the project depends on commons-lang 2.6 and commons-math 2.2,
+ * then the file written will contain the line:
+ * <pre>
+ * commons-lang/commons-lang/2.6/commons-lang-2.6.jar
+ * org/apache/commons/commons-math/2.2/commons-math-2.2.jar
+ * </pre>
+ */
+@Mojo(name = "classpath",
+        defaultPhase = GENERATE_RESOURCES,
+        requiresDependencyCollection = RUNTIME)
+public class ClasspathMojo extends AbstractMojo {
+
+    @Component
+    private BuildContext context;
+
+    @Parameter(property = "project", required = true, readonly = true)
+    private MavenProject project;
+
+    @Parameter(defaultValue = "${project.build.directory}/generated-resources/classpath", property = "classpathOutputDirectory")
+    private File outputDirectory;
+
+    @Parameter(defaultValue = "classpath.txt")
+    private String file;
+
+    @Parameter(property = "sort", defaultValue = "false")
+    private boolean sort;
+
+    public void execute() throws MojoExecutionException, MojoFailureException {
+        List<String> paths = buildClasspath();
+        writeClasspath(paths);
+        addGeneratedResourceToBuild();
+    }
+
+    @SuppressWarnings("unchecked")
+    private List<String> buildClasspath() {
+        ArtifactRepositoryLayout layout = new DefaultRepositoryLayout();
+//        List<Artifact> artifacts = project.getRuntimeArtifacts();
+//        Collection<Artifact> artifacts = project.getDependencyArtifacts();
+        Collection<Artifact> artifacts = project.getArtifacts();
+        List<String> paths = new ArrayList<String>(artifacts.size());
+        for (Artifact artifact : artifacts) {
+//            System.out.println("artifact.getId() = " + artifact.getId());
+            String key = artifact.getGroupId() + ":" + artifact.getArtifactId() + ":" + artifact.getClassifier() + ":" + artifact.getVersion() + ":" + artifact.getType() + ":" + artifact.getClassifier();
+//            System.out.println("key: " + key);
+            paths.add(key);
+        }
+
+        if (sort) {
+            sort(paths);
+        }
+        return paths;
+    }
+
+    private void writeClasspath(List<String> paths)
+            throws MojoFailureException, MojoExecutionException {
+        File output = new File(outputDirectory, file);
+        File directory = output.getParentFile();
+        if (!directory.exists() && ! directory.mkdirs()) {
+            throw new MojoFailureException("Could not create directory: " + directory);
+        }
+
+        try {
+            writeClasspathFile(output, paths);
+        } catch (IOException ex) {
+            throw new MojoExecutionException("Could not write to " + file, ex);
+        }
+    }
+
+
+    private void writeClasspathFile(File output, List<String> classpath)
+            throws IOException {
+        OutputStream os = context.newFileOutputStream(output);
+        PrintWriter writer = null;
+        try {
+            writer = new PrintWriter(new OutputStreamWriter(os, "UTF-8"));
+            for (String s : classpath) {
+                writer.println(s);
+            }
+        } finally {
+            IOUtil.close(writer);
+            os.close();
+        }
+    }
+
+    private void addGeneratedResourceToBuild() {
+        Resource resource = new Resource();
+        resource.setDirectory(outputDirectory.getPath());
+        resource.setIncludes(singletonList(file));
+        project.addResource(resource);
+    }
+}