net.ubos.tools.pacmanpkgmavenplugin.PacmanPkgMavenPlugin.java Source code

Introduction

Here is the source code for net.ubos.tools.pacmanpkgmavenplugin.PacmanPkgMavenPlugin.java

Source

/**
 * This file is part of pacmanpkgmavenplugin.
 * 
 * (C) 2012-2016 Indie Computing Corp.
 * 
 * pacmanpkgmavenplugin is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 * 
 * pacmanpkgmavenplugin is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with pacmanpkgmavenplugin.  If not, see <http://www.gnu.org/licenses/>.
 * 
 */

package net.ubos.tools.pacmanpkgmavenplugin;

import java.io.File;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.ArrayList;
import java.util.Set;
import org.apache.maven.artifact.Artifact;
import org.apache.maven.plugin.AbstractMojo;
import org.apache.maven.plugin.MojoExecutionException;
import org.apache.maven.plugins.annotations.Mojo;
import org.apache.maven.plugins.annotations.Parameter;
import org.apache.maven.project.MavenProject;

/**
 * A maven plugin that generates PKGBUILD files suitable for pacman.
 */
@Mojo(name = "pacmanpkg")
public class PacmanPkgMavenPlugin extends AbstractMojo {

    /**
     * {@inheritDoc}
     * 
     * @throws MojoExecutionException
     */
    @Override
    public void execute() throws MojoExecutionException {
        MavenProject project = (MavenProject) getPluginContext().get("project");
        String packaging = project.getPackaging();

        if (!"jar".equals(packaging) && !"ear".equals(packaging) && !"war".equals(packaging)) {
            return;
        }

        getLog().info("Generating PKGBUILD @ " + project.getName());

        // pull stuff out of MavenProject
        String artifactId = project.getArtifactId();
        String version = project.getVersion();
        String url = project.getUrl();
        String description = project.getDescription();
        Set<Artifact> dependencies = project.getDependencyArtifacts();
        File artifactFile = project.getArtifact().getFile();

        if (artifactFile == null || !artifactFile.exists()) {
            throw new MojoExecutionException("pacmanpkg must be executed as part of a build, not standalone,"
                    + " otherwise it can't find the main JAR file");
        }
        // translate to PKGBUILD fields
        String pkgname = artifactId;
        String pkgver = version.replaceAll("-SNAPSHOT", "a"); // alpha
        String pkgdesc = "A Java package available on UBOS";
        if (description != null) {
            if (description.length() > 64) {
                pkgdesc = description.substring(0, 64) + "...";
            } else {
                pkgdesc = description;
            }
        }

        ArrayList<String> depends = new ArrayList<>(dependencies.size());
        for (Artifact a : dependencies) {
            if (!"test".equals(a.getScope())) {
                depends.add(a.getArtifactId());
            }
        }
        // write to PKGBUILD
        try {
            File baseDir = project.getBasedir();
            File pkgBuild = new File(baseDir, "target/PKGBUILD");
            PrintWriter out = new PrintWriter(pkgBuild);

            getLog().debug("Writing PKGBUILD to " + pkgBuild.getAbsolutePath());

            out.println("#");
            out.println(" * Automatically generated by pacman-pkg-maven-plugin; do not modify.");
            out.println("#");

            out.println();

            out.println("pkgname=" + pkgname);
            out.println("pkgver=" + pkgver);
            out.println("pkgrel=" + pkgrel);
            out.println("pkgdesc='" + pkgdesc + "'");
            out.println("arch=('any')");
            out.println("url='" + url + "'");
            out.println("license=('" + license + "')");

            out.print("depends=(");
            String sep = "";
            for (String d : depends) {
                out.print(sep);
                sep = ",";
                out.print("'");
                out.print(d);
                out.print("'");
            }
            out.println(")");

            out.println();

            out.println("package() (");
            out.println("   mkdir -p ${pkgdir}/usr/share/java");
            out.println("   install -m644 ${startdir}/" + artifactFile.getName() + " ${pkgdir}/usr/share/java/");
            out.println(")");

            out.close();

        } catch (IOException ex) {
            throw new MojoExecutionException("Failed to write target/PKGBUILD", ex);
        }
    }

    /**
     * Allow to set PKGBUILD pkgrel, with default.
     */
    @Parameter
    private Integer pkgrel = 1;

    /**
     * Allow to set PKGBUILD license, with default.
     */
    @Parameter
    private String license = "custom";
}