[Issue #13] - adding install parameter to install a new config file

pom.xml

@@ -182,7 +182,7 @@
                     <packager>Bit Goblin</packager>
                     <prefix>/opt</prefix>
                     <changelogFile>${project.basedir}/src/build/changelog.txt</changelogFile>
-                    <targetOs>linux</targetOs>
+                    <targetOs>${os.name}</targetOs>
                     <mappings>
                         <mapping>
                             <directory>/opt/dragoon</directory>

src/main/java/tech/bitgoblin/config/Cmd.java

@@ -1,7 +1,16 @@
 package tech.bitgoblin.config;
 
+import java.io.IOException;
+import java.io.InputStream;
+import java.nio.file.Files;
+import java.nio.file.Paths;
+import java.nio.file.StandardCopyOption;
+
 import org.apache.commons.cli.*;
 
+import tech.bitgoblin.Logger;
+import tech.bitgoblin.io.IOUtils;
+
 public class Cmd {
 
 	private String helpHeader = "Start the Dragoon video transcoder.";
@@ -16,6 +25,10 @@ public class Cmd {
 		Option helpOption = new Option("h", "help", false, "Display CLI usage and options.");
 		options.addOption(helpOption);
 		
+		// install a config file in the user's home directory
+		Option installOption = new Option("i", "install", false, "Install configuration file in the user's home directory (or specify a location with -c).");
+		options.addOption(installOption);
+		
 		// allow the user to specify a config file manually
 	    Option configPath = new Option("c", "configPath", true, "Configuration file path (defaults to " + this.configPath + ")");
 	    configPath.setRequired(false);
@@ -29,6 +42,17 @@ public class Cmd {
 	    	this.printHelp(options);
 	    }
 	    
+	    // check if the install option was called
+	    if (cmd.hasOption("install")) {
+	    	try {
+				this.installConfig();
+			} catch (IOException e) {
+				e.printStackTrace();
+				Logger.logger.error("Unable to install new configuration file; please refer to the stack trace above to resolve the error.");
+				System.exit(2);
+			}
+	    }
+	
 	    // set the configPath variable if the option was passed to the program
 	    if (cmd.hasOption("configPath")) {
 	    	this.configPath = cmd.getOptionValue("configPath");
@@ -42,6 +66,15 @@ public class Cmd {
 		System.exit(0);
 	}
 	
+	public void installConfig() throws IOException {
+		ClassLoader classloader = Thread.currentThread().getContextClassLoader();
+		InputStream is = classloader.getResourceAsStream("example.config");
+		Files.copy(is, Paths.get(IOUtils.resolveTilda(this.configPath)), StandardCopyOption.REPLACE_EXISTING);
+		Logger.logger.info("A new configuration file has been installed at " + this.configPath + ".");
+		
+		System.exit(0);
+	}
+
 	public String getConfigPath() {
 		return this.configPath;
 	}

src/main/resources/example.config

@@ -0,0 +1,10 @@
+[transcoder]
+repo_path = '~/dragoon'
+interval = 15
+video_format = 'mov'
+video_codec = 'dnxhd'
+video_profile = 'dnxhr_hq'
+video_resolution = '1920x1080'
+video_framerate = '60'
+video_color = 'yuv422p'
+audio_codec = 'pcm_s16le'