U generate deb from gradle

Author: fvarrui

src/main/java/io/github/fvarrui/javapackager/gradle/GenerateDeb.java

@@ -1,11 +1,16 @@
 package io.github.fvarrui.javapackager.gradle;
 
 import java.io.File;
+import java.util.UUID;
+
+import com.netflix.gradle.plugins.deb.Deb;
 
 import io.github.fvarrui.javapackager.packagers.ArtifactGenerator;
+import io.github.fvarrui.javapackager.packagers.Context;
 import io.github.fvarrui.javapackager.packagers.LinuxPackager;
 import io.github.fvarrui.javapackager.packagers.Packager;
 import io.github.fvarrui.javapackager.utils.Logger;
+import io.github.fvarrui.javapackager.utils.VelocityUtils;
 
 /**
  * Creates a DEB package file including all app folder's content only for 
@@ -28,7 +33,81 @@ public File apply(Packager packager) throws Exception {
 
 		Logger.warn("Sorry! " + getArtifactName() + " generation is not yet available");
 
-		return null;
+		File assetsFolder = linuxPackager.getAssetsFolder();
+		String name = linuxPackager.getName();
+		String description = linuxPackager.getDescription();
+		File appFolder = linuxPackager.getAppFolder();
+		File outputDirectory = linuxPackager.getOutputDirectory();
+		String version = linuxPackager.getVersion();
+		boolean bundleJre = linuxPackager.getBundleJre();
+		String jreDirectoryName = linuxPackager.getJreDirectoryName();
+		File executable = linuxPackager.getExecutable();
+		String organizationName = linuxPackager.getOrganizationName();
+		String organizationEmail = linuxPackager.getOrganizationEmail();
+
+		// generates desktop file from velocity template
+		File desktopFile = new File(assetsFolder, name + ".desktop");
+		VelocityUtils.render("linux/desktop.vtl", desktopFile, linuxPackager);
+		Logger.info("Desktop file rendered in " + desktopFile.getAbsolutePath());
+
+		// generates deb control file from velocity template
+		File controlFile = new File(assetsFolder, "control");
+		VelocityUtils.render("linux/control.vtl", controlFile, linuxPackager);
+		Logger.info("Control file rendered in " + controlFile.getAbsolutePath());
+
+		// generated deb file
+		File debFile = new File(outputDirectory, name + "_" + version + ".deb");
+
+		Deb debTask = createDebTask();
+		debTask.setProperty("archiveFileName", debFile.getName());
+		debTask.setProperty("destinationDirectory", outputDirectory);
+		debTask.setPackageName(name);
+		debTask.setPackageDescription(description);
+		debTask.setPackager(organizationName);
+		debTask.setMaintainer(organizationName + (organizationEmail != null ? " <" + organizationEmail + ">" : ""));
+		debTask.setPriority("optional");
+		debTask.setArchStr("amd64");
+		debTask.setDistribution("development");
+		
+		/* installation destination */
+		debTask.into("/opt/" + name);
+		
+		/* includes app folder files, except executable file and jre/bin/java */
+		debTask.from(appFolder, c -> {
+			c.into(".");
+			c.exclude(executable.getName());
+			if (bundleJre) {
+				c.exclude(jreDirectoryName + "/bin/java");
+			}
+		});
+		
+		/* executable */
+		debTask.from(executable, c -> {
+			c.into(".");
+			c.setFileMode(0755);
+		});
+
+		/* java binary file */
+		if (bundleJre) {
+			debTask.from(new File(appFolder, jreDirectoryName + "/bin/java"), c -> {
+				c.into(".");
+				c.setFileMode(0755);
+			});
+		}
+
+		/* desktop file */
+		debTask.from(desktopFile, c -> {
+			c.into("/usr/share/applications");
+		});
+
+		/* symbolic link in /usr/local/bin to app binary */
+		debTask.link("/usr/local/bin/" + name, "/opt/" + name + "/" + name, 0777);
+
+		return debFile;
+	}
+	
+	private Deb createDebTask() {
+		return Context.getGradleContext().getProject().getTasks().create("createDEb_" + UUID.randomUUID(), Deb.class);
 	}
 
 }